/* =====================================================
   VoltGuard – style.css
   Endüstriyel Mühendislik Çözümleri
   ===================================================== */

/* =====================================================
   CSS CUSTOM PROPERTIES
   ===================================================== */
:root {
  /* Brand colours */
  --clr-dark:          #0a1628;
  --clr-dark-mid:      #0d1f3c;
  --clr-navy:          #1e3a5f;
  --clr-accent:        #f59e0b;
  --clr-accent-dark:   #d97706;   /* ~3.2:1 on white — OK for icons/large/UI */
  --clr-accent-text:   #b45309;   /* ~5.0:1 on white — use for small accent TEXT and focus rings (WCAG AA) */
  --clr-accent-light:  #fcd34d;
  --clr-electric:      #3b82f6;

  /* UI colours */
  --clr-text:          #1e293b;
  --clr-text-muted:    #5b6b7c;   /* ~5.5:1 on white, ~4.9:1 on --clr-bg-gray (WCAG AA) */
  --clr-text-light:    #94a3b8;   /* decorative / on dark only — NOT for text on light surfaces (2.5:1) */
  --clr-bg:            #f8fafc;
  --clr-bg-gray:       #f1f5f9;
  --clr-white:         #ffffff;
  --clr-border:        #e2e8f0;

  /* Tema-duyarlı anlamsal değişkenler. --clr-white / --clr-dark SABİT kalır (koyu bantlar, turuncu düğme üstü metin);
     temaya göre değişen yüzey ve metinler bunları kullanır. Koyu değerler: aşağıdaki :root[data-theme="dark"]. */
  --surface: var(--th-surface);   /* kart, form, açık bölüm zemini */
  --surface-raised: var(--th-surface-3);   /* kart içinde öne çıkan alan (açılır panel, modal) */
  --ink: var(--th-heading);    /* başlık metni */
  --field-bg: var(--th-input-bg);   /* form alanı zemini */
  --field-border: var(--th-input-border);            /* form alanı sınırı: beyazda 3.0:1 (WCAG 1.4.11) */
  --danger-text: var(--th-red-ink);            /* hata metni: beyazda ~6.4:1 */
  --danger-bg: var(--th-tint-red);
  --success-text: var(--th-green-ink);
  --success-bg: var(--th-tint-green);
  --vg-link: var(--th-blue-ink);
  --vg-link-bg: var(--th-tint-blue);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,.08), 0 2px 4px -1px rgba(0,0,0,.04);
  --shadow-lg:  0 10px 25px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.06);
  --shadow-xl:  0 20px 40px -8px rgba(0,0,0,.15), 0 8px 12px -4px rgba(0,0,0,.06);

  /* Border radius */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   20px;
  --r-full: 9999px;

  /* Transitions */
  --t-fast:   0.2s ease;
  --t-base:   0.3s ease;
  --t-slow:   0.5s ease;

  /* Layout */
  --container-max:  clamp(1200px, 88vw, 1520px); /* geniş ekranlarda yan boşluklar büyümesin */
  --container-pad:  1.5rem;
  --header-h:       var(--vg-header-h, 72px);   /* yapışkan başlığın yüksekliği: css/vg-shell.css */
}

/* Legacy aliases use the shared --th-* palette, including dark mode and print overrides. */
:root[data-theme="dark"] {
  --surface: var(--th-surface);
  --surface-raised: var(--th-surface-3);
  --ink: var(--th-heading);   /* 15.6:1 */
  --clr-text: var(--th-text);   /* 12.4:1 */
  --clr-text-muted: var(--th-muted);   /*  8.0:1 */
  --clr-bg: var(--th-surface-2);
  --clr-bg-gray: var(--th-surface-3);
  --clr-border: var(--th-border);
  --clr-accent-text: var(--th-accent-text);   /* odak halkası ve küçük vurgu metni: 10.3:1 */
  --field-bg: var(--th-input-bg);
  --field-border: var(--th-input-border);            /* #0b1626 üzerinde 4.6:1 */
  --danger-text: var(--th-red-ink);
  --danger-bg: var(--th-tint-red);
  --success-text: var(--th-green-ink);
  --success-bg: var(--th-tint-green);
  --vg-link: var(--th-blue-ink);
  --vg-link-bg: var(--th-tint-blue);
  --shadow-sm:  0 1px 3px rgba(0,0,0,.45);
  --shadow-md:  0 4px 10px -2px rgba(0,0,0,.5);
  --shadow-lg:  0 12px 28px -6px rgba(0,0,0,.55);
  --shadow-xl:  0 22px 44px -10px rgba(0,0,0,.6);
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  /* color-scheme: tools/shell/head.html (data-theme ile light / dark) */
  overflow-x: clip;               /* safety net against decorative horizontal overflow */
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--clr-text);
  background-color: var(--th-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Yatay taşma koruması (html'deki clip'e ek): reveal animasyonları gizli durumda
     içeriği yana ittiğinde mobilde sağda boşluk/yatay kaydırma oluşmasını engeller. */
  overflow-x: clip;
}

/* Custom selection colour */
::selection {
  background: rgba(245,158,11,.22);
  color: var(--th-heading);
}

::-moz-selection {
  background: rgba(245,158,11,.22);
  color: var(--th-heading);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--clr-bg-gray);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--clr-accent), var(--clr-electric));
  border-radius: var(--r-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--clr-accent-dark);
}

/* Windows Chromium draws default up/down/left/right arrow buttons on custom
   scrollbars unless explicitly removed — hide them everywhere. */
::-webkit-scrollbar-button {
  display: none;
  width: 0;
  height: 0;
}

html {
  scrollbar-color: var(--clr-accent) var(--clr-bg-gray);
  scrollbar-width: thin;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--t-base);
}

ul {
  list-style: none;
}

address {
  font-style: normal;
}

input,
textarea,
select,
button {
  font-family: var(--font-body);
}

/* =====================================================
   UTILITIES
   ===================================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: clamp(3.5rem, 6vw, 5rem) 0;
  /* Modern tarayıcılarda: görüş alanı dışındaki bölümlerin render'ını erteler.
     Layout, boyama ve stil hesaplaması ekrana gelene kadar atlanır.
     Destekleyen tarayıcılarda ilk boyama ve scroll akıcılığı ciddi hızlanır. */
  content-visibility: auto;
  contain-intrinsic-size: 800px;
}

.section--gray {
  background-color: var(--clr-bg-gray);
}

/* Section header */
.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section__badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background-color: rgba(245,158,11,.1);
  color: var(--th-amber-ink);
  font-family: var(--font-heading);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .9rem;
  border-radius: var(--r-full);
  border: 1px solid rgba(245,158,11,.3);
  margin-bottom: .9rem;
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--th-heading);
  line-height: 1.25;
  margin-bottom: .9rem;
  text-wrap: balance;
}

.section__desc {
  font-size: 1.02rem;
  color: var(--clr-text-muted);
  line-height: 1.75;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1.4rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .93rem;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: all var(--t-base);
  border: 2px solid transparent;
  white-space: nowrap;
  line-height: 1;
  min-height: 44px;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 55%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.4), transparent);
  transition: left .55s ease;
}

.btn:hover::after {
  left: 130%;
}

.btn--lg  { padding: .875rem 2rem;  font-size: 1rem; }
.btn--md  { padding: .75rem 1.75rem; font-size: .93rem; }
.btn--full { width: 100%; justify-content: center; }

.btn--primary {
  background-color: var(--clr-dark);
  color: var(--clr-white);
  border-color: var(--clr-dark);
}
.btn--primary:hover {
  background-color: var(--clr-navy);
  border-color: var(--clr-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--accent {
  background-color: var(--clr-accent);
  color: var(--clr-dark);
  border-color: var(--clr-accent);
  font-weight: 700;
}
.btn--accent:hover {
  background-color: var(--clr-accent-dark);
  border-color: var(--clr-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245,158,11,.4), 0 0 0 4px rgba(245,158,11,.12);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,.5);
}
.btn--outline-white:hover {
  background-color: var(--clr-white);
  color: var(--clr-dark);
  border-color: var(--clr-white);
  transform: translateY(-2px);
}

.btn--white {
  background-color: var(--clr-white);
  color: var(--clr-dark);
  border-color: var(--clr-white);
  font-weight: 700;
}
.btn--white:hover {
  background-color: var(--clr-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* =====================================================
   REVEAL ANIMATION (Intersection Observer)
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger via data-delay — scoped to reveal elements so the attribute can't leak elsewhere */
.reveal[data-delay="0"], .reveal-left[data-delay="0"], .reveal-right[data-delay="0"], .reveal-scale[data-delay="0"] { transition-delay: 0s; }
.reveal[data-delay="1"], .reveal-left[data-delay="1"], .reveal-right[data-delay="1"], .reveal-scale[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"], .reveal-left[data-delay="2"], .reveal-right[data-delay="2"], .reveal-scale[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"], .reveal-left[data-delay="3"], .reveal-right[data-delay="3"], .reveal-scale[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"], .reveal-left[data-delay="4"], .reveal-right[data-delay="4"], .reveal-scale[data-delay="4"] { transition-delay: .4s; }

/* =====================================================
   IMAGE PLACEHOLDER (when real image is missing)
   ===================================================== */
/* Image error fallback (handled via JS, CSP-safe) */
img.img-error {
  display: none !important;
}

.img-placeholder {
  background: linear-gradient(135deg, var(--clr-navy) 0%, var(--clr-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
}

.img-placeholder::after {
  content: 'Görsel Yakında Eklenecek';
  color: rgba(255,255,255,.3);
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .05em;
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh; /* mobil adres çubuğu açıkken alt içeriğin kırpılmasını önler */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-top: var(--header-h);
}

/* Background layer */
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a1628 0%, #0d1f3c 45%, #162d52 75%, #0a1628 100%);
  z-index: 0;
}

.hero__spotlight {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,.22) 0%, rgba(245,158,11,.08) 35%, transparent 72%);
  filter: blur(14px);
  pointer-events: none;
  z-index: 1;
  transform: translate3d(-50%, -50%, 0);
  left: 72%;
  top: 38%;
  opacity: .85;
  transition: opacity var(--t-base);
}

/* Real hero background photo */
.hero__bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  mix-blend-mode: luminosity;
  display: block;
  transform: scale(1.05);
}



/* Radial glow accents */
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse at 15% 55%, rgba(245,158,11,.09) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 25%, rgba(59,130,246,.08) 0%, transparent 50%),
    radial-gradient(ellipse at 65% 85%, rgba(245,158,11,.05) 0%, transparent 40%);
}

/* Subtle grid / circuit pattern */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cpath d='M36 32h-4v-4h-4v4h-4v4h4v4h4v-4h4z' fill='%23ffffff' fill-opacity='0.018'/%3E%3C/g%3E%3C/svg%3E");
}

/* Large decorative bolt icon */
.hero__decoration {
  position: absolute;
  right: 6%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  pointer-events: none;
  user-select: none;
}

.hero__decoration i {
  font-size: clamp(14rem, 22vw, 22rem);
  color: rgba(245,158,11,.055);
  line-height: 1;
  display: block;
  filter: blur(1px);
}

/* Gradient overlay at bottom */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10,22,40,.65) 100%);
  z-index: 1;
}

/* Main hero content */
.hero__content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding-top: 3rem;
  padding-bottom: 3rem;
  max-width: 780px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background-color: rgba(245,158,11,.14);
  color: var(--clr-accent-light);
  font-family: var(--font-heading);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  padding: .4rem 1rem;
  border-radius: var(--r-full);
  border: 1px solid rgba(245,158,11,.3);
  margin-bottom: 1.5rem;
  animation: fadeInDown .8s ease both;
}

.hero__live-pill {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  color: rgba(255,255,255,.86);
  font-family: var(--font-heading);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .02em;
  padding: .45rem .85rem;
  border-radius: var(--r-full);
  margin-bottom: 1rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fadeInDown .8s ease .08s both;
}

.hero__live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34,197,94,.55);
  animation: pulseDot 1.8s infinite;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.9rem);
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1.12;
  margin-bottom: 1.5rem;
  animation: fadeInUp .9s ease .1s both;
  text-wrap: balance;
}

.hero__title--accent {
  color: var(--clr-accent);
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,.72);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: 2.5rem;
  animation: fadeInUp .9s ease .2s both;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp .9s ease .3s both;
}

/* Stats bar */
.hero__stats {
  position: relative;
  z-index: 2;
  background-color: rgba(255,255,255,.055);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 1.75rem 0;
}

.hero__stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.hero__stat {
  position: relative;
}

.hero__stat:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background: rgba(255,255,255,.12);
}

.hero__stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: .4rem;
}

.hero__stat-label {
  font-size: .75rem;
  color: rgba(255,255,255,.55);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.ges-intro {
  background: var(--th-surface-2);
  border-bottom: 1px solid var(--clr-border);
  padding: 3rem 0;
}

.ges-intro__inner {
  display: grid;
  grid-template-columns: minmax(280px, .85fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.ges-intro__video {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 16 / 10;
  background: var(--clr-dark);
}

.ges-intro__video video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ges-intro__video-badge {
  position: absolute;
  left: .9rem;
  bottom: .9rem;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(10,22,40,.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-family: var(--font-heading);
  font-size: .75rem;
  font-weight: 700;
  padding: .35rem .75rem;
  border-radius: var(--r-full);
}

.ges-intro__video-badge i { color: var(--clr-accent); }

.ges-intro h2 {
  color: var(--th-heading);
  font-family: var(--font-heading);
  font-size: 1.55rem;
  margin-top: .5rem;
}

.ges-intro p {
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin: 1rem 0 1.5rem;
}

.ges-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.ges-intro__link {
  color: var(--th-heading);
  font-family: var(--font-heading);
  font-size: .92rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.ges-intro__link { display: inline-flex; align-items: center; gap: .4rem; min-height: 32px; }

.ges-intro__link i {
  color: var(--clr-accent-dark);
  margin-left: .35rem;
}

.ges-intro__link:hover,
.ges-intro__link:focus-visible {
  color: var(--clr-accent-text);
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  .ges-intro__video video { display: none; }
}

@media (max-width: 860px) {
  .ges-intro__inner { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* =====================================================
   ABOUT
   ===================================================== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: center;
}

.about__content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about__text {
  color: var(--clr-text-muted);
  line-height: 1.8;
  font-size: 1.02rem;
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin: .5rem 0 1.25rem;
}

.about__features li {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: .95rem;
  font-weight: 500;
  color: var(--clr-text);
}

.about__features li i {
  color: var(--clr-accent-dark);
  font-size: 1rem;
  flex-shrink: 0;
}

/* About image */
.about__img-wrapper {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about__img-wrapper img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform var(--t-slow);
}

.about__img-wrapper:hover img {
  transform: scale(1.03);
}

.about__img-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background-color: var(--clr-accent);
  color: var(--clr-dark);
  padding: .75rem 1.25rem;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  gap: .75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: .88rem;
  line-height: 1.4;
  box-shadow: var(--shadow-lg);
}

.about__img-badge i {
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* =====================================================
   SERVICES
   ===================================================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background-color: var(--th-surface);
  border-radius: var(--r-lg);
  padding: 0;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  transition: all var(--t-base);
  position: relative;
  overflow: hidden;
}

.service-card__cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--clr-bg-gray);
}

.service-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--t-slow);
}

.service-card:hover .service-card__cover img {
  transform: scale(1.06);
}

.service-card__body {
  padding: 1.75rem 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background-color: var(--clr-accent);
  opacity: 0;
  transition: opacity var(--t-base);
}

.service-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-5px);
  border-color: rgba(245,158,11,.3);
}

.service-card:hover::before {
  opacity: 1;
}

/* Service card icon */
.service-card__icon {
  width: 58px;
  height: 58px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  flex-shrink: 0;
}

.service-card__icon--electric    { background-color: rgba(245,158,11,.12); color: #d97706; }
.service-card__icon--electronic  { background-color: rgba(59,130,246,.12);  color: var(--th-blue-ink); }
.service-card__icon--automation  { background-color: rgba(16,185,129,.12);  color: #059669; }
.service-card__icon--mechanical  { background-color: rgba(139,92,246,.12);  color: #7c3aed; }
.service-card__icon--energy      { background-color: rgba(22,163,74,.12);   color: #16a34a; }

.service-card--wide { grid-column: 1 / -1; }
.service-card--wide .service-card__cover { aspect-ratio: 21 / 5; }

.service-card__list--columns {
  column-count: 2;
  column-gap: 1.5rem;
}

.service-card__list--columns li { break-inside: avoid; }

@media (max-width: 640px) {
  .service-card__list--columns { column-count: 1; }
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--th-heading);
}

.service-card__desc {
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: .38rem;
  flex: 1;
}

.service-card__list li {
  font-size: .875rem;
  color: var(--clr-text-muted);
  padding-left: 1.15rem;
  position: relative;
  line-height: 1.5;
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .52em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--clr-accent);
}

.service-card__link {
  font-family: var(--font-heading);
  font-size: .88rem;
  font-weight: 600;
  color: var(--clr-accent-text);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: gap var(--t-base);
  margin-top: .25rem;
  align-self: flex-start;
}

.service-card__link:hover {
  gap: .7rem;
}

/* =====================================================
   WHY US
   ===================================================== */
.why-us__banner {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.why-us__banner img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.why-us__banner-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: 1rem 1.5rem;
  background: linear-gradient(180deg, transparent, rgba(10,22,40,.85));
  color: #fff;
  font-family: var(--font-heading);
  font-size: .92rem;
  font-weight: 600;
}

.why-us__banner-caption i { color: var(--clr-accent); }

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-card {
  background-color: var(--th-surface);
  border-radius: var(--r-lg);
  padding: 2rem 1.75rem;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--t-base);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.why-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-5px);
  border-color: rgba(245,158,11,.3);
}

.why-card__icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-navy) 100%);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  font-size: 1.5rem;
  margin: 0 auto 1.25rem;
}

.why-card__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--th-heading);
  margin-bottom: .65rem;
}

.why-card__desc {
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

/* =====================================================
   PROJECTS
   ===================================================== */
.projects {
  background: linear-gradient(160deg, var(--clr-dark) 0%, #0d1f3c 50%, #112240 100%);
  position: relative;
  padding-top: 6rem;
}

.projects .section__badge {
  background-color: rgba(245,158,11,.15);
  color: var(--clr-accent-light);
  border-color: rgba(245,158,11,.35);
}

.projects .section__title { color: var(--clr-white); }
.projects .section__desc  { color: rgba(255,255,255,.55); }

.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 3rem;
}

/* Overlay card — full bleed image, text on top */
.project-card--overlay {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: default;
  box-shadow: var(--shadow-xl);
  /* Tilt (JS ile geliştirilir): tek transition kaynağı burada tanımlı. */
  transform-style: preserve-3d;
  perspective: 800px;
  transition: transform .4s ease, box-shadow var(--t-base), opacity .65s ease;
  background: var(--clr-dark);
}

.project-card--overlay img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .6s ease;
}

.project-card--overlay:hover img {
  transform: scale(1.07);
}

/* Gradient overlay on image */
.project-card--overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(5,12,26,.92) 0%,
    rgba(5,12,26,.55) 45%,
    rgba(5,12,26,.08) 100%
  );
  z-index: 1;
  transition: background var(--t-base);
}

.project-card--overlay:hover::before {
  background: linear-gradient(
    to top,
    rgba(5,12,26,.96) 0%,
    rgba(5,12,26,.65) 55%,
    rgba(5,12,26,.15) 100%
  );
}

/* Text content */
.project-card__overlay-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.75rem 1.5rem 1.5rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  transform: translateY(4px);
  transition: transform var(--t-base);
}

.project-card--overlay:hover .project-card__overlay-content {
  transform: translateY(0);
}

.project-card__overlay-content .project-card__category {
  background-color: var(--clr-accent);
  color: var(--clr-dark);
  font-family: var(--font-heading);
  font-size: .7rem;
  font-weight: 700;
  padding: .22rem .65rem;
  border-radius: var(--r-full);
  text-transform: uppercase;
  letter-spacing: .06em;
  align-self: flex-start;
}

.project-card__overlay-content .project-card__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-white);
  line-height: 1.3;
  margin: 0;
}

.project-card__overlay-content .project-card__desc {
  font-size: .82rem;
  color: rgba(255,255,255,.68);
  line-height: 1.55;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--t-base), transform var(--t-base);
  margin: 0;
}

.project-card--overlay:hover .project-card__overlay-content .project-card__desc {
  opacity: 1;
  transform: translateY(0);
}

/* Project card — tags row (category + year) */
.project-card__tags {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}

.project-card__year {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-family: var(--font-heading);
  font-size: .6875rem;
  font-weight: 600;
  color: rgba(255,255,255,.65);
  background-color: rgba(255,255,255,.1);
  padding: .2rem .55rem;
  border-radius: var(--r-full);
  border: 1px solid rgba(255,255,255,.12);
  letter-spacing: .03em;
}

.project-card__year i {
  font-size: .6875rem;
}

/* Project card — meta row (sector + status) */
.project-card__meta {
  display: flex;
  align-items: center;
  gap: .9rem;
  margin-top: .25rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--t-base) .05s, transform var(--t-base) .05s;
}

.project-card--overlay:hover .project-card__meta {
  opacity: 1;
  transform: translateY(0);
}

.project-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .72rem;
  color: rgba(255,255,255,.5);
  font-weight: 500;
}

.project-card__meta span i {
  color: var(--clr-accent);
  font-size: .6875rem;
}

/* Projects CTA */
.projects__cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.projects__cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.6);
  font-weight: 500;
}

/* =====================================================
   CTA BANNER
   ===================================================== */
.cta-banner {
  background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-navy) 60%, #1a3a6e 100%);
  padding: 4.5rem 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cpath d='M36 32h-4v-4h-4v4h-4v4h4v4h4v-4h4z' fill='%23ffffff' fill-opacity='0.025'/%3E%3C/g%3E%3C/svg%3E");
}

.cta-banner::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,.12) 0%, transparent 70%);
  top: -120px;
  right: -80px;
  pointer-events: none;
}

.cta-banner__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.cta-banner__text h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: .4rem;
}

.cta-banner__text p {
  color: rgba(255,255,255,.68);
  font-size: 1rem;
}

.cta-banner__actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* =====================================================
   CONTACT
   ===================================================== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.65fr;
  gap: 3rem;
  align-items: start;
}

/* Info panel */
.contact__info {
  background: linear-gradient(160deg, var(--clr-dark) 0%, #0d1f3c 60%, #152a4a 100%);
  border-radius: var(--r-lg);
  padding: 2.5rem;
  color: var(--clr-white);
  position: relative;
  overflow: hidden;
}

.contact__info::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,.1) 0%, transparent 70%);
  top: -60px;
  right: -60px;
  pointer-events: none;
}

.contact__info-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.contact__item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact__item-icon {
  width: 40px;
  height: 40px;
  background-color: rgba(245,158,11,.15);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
  font-size: .95rem;
}

.contact__item-body {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.contact__item-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: rgba(255,255,255,.45);
  font-weight: 600;
}

.contact__item-value {
  font-size: .93rem;
  color: var(--clr-white);
  font-weight: 500;
  line-height: 1.55;
}
a.contact__item-value { display: inline-block; padding: .2rem 0; }

.contact__item-link:hover {
  color: var(--clr-accent);
}

/* Form panel */
.contact__form-wrapper {
  background-color: var(--th-surface);
  border-radius: var(--r-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--clr-border);
}

.contact__form-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--th-heading);
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--clr-accent);
}

.contact__form-security {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--th-green-ink);
  background: rgba(16,185,129,.08);
  border: 1px solid rgba(16,185,129,.2);
  border-radius: var(--r-sm);
  padding: .45rem .7rem;
  margin: -1rem 0 1.2rem;
}

.contact__form-security i {
  color: #059669;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form__group {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .38rem;
}

.form__label {
  font-size: .83rem;
  font-weight: 600;
  color: var(--clr-text);
}

.form__label span {
  color: var(--clr-accent-dark);
}

.form__input {
  padding: .72rem 1rem;
  border: 1.5px solid var(--field-border);
  border-radius: var(--r-sm);
  font-size: max(16px, .92rem); /* <16px iOS Safari odakta sayfayı yakınlaştırır */
  color: var(--clr-text);
  background-color: var(--th-surface);
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-fast);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form__input:focus {
  border-color: var(--clr-accent-dark);   /* #d97706: 3.2:1 beyaz üzerinde (UI bileşen sınırı) */
  box-shadow: 0 0 0 3px rgba(245,158,11,.18);
  transform: translateY(-1px);
}

.form__input::placeholder {
  color: var(--clr-text-muted);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__meta {
  display: flex;
  justify-content: flex-end;
  margin-top: .35rem;
}

.form__counter {
  font-size: .75rem;
  color: var(--clr-text-muted);
}

.form__counter.limit {
  color: var(--th-red-ink);
  font-weight: 600;
}

.form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__consent {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding: .7rem .75rem;
  border-radius: var(--r-sm);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
}

.form__consent input[type="checkbox"] {
  margin-top: .15rem;
  accent-color: var(--clr-accent-dark);
}

.form__consent label {
  font-size: .82rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
}

.form__captcha {
  display: flex;
  justify-content: center;
  padding: .25rem 0 .1rem;
}

.form__captcha .cf-turnstile {
  max-width: 100%;
}

.form__input.is-invalid,
.form__consent.is-invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.15);
}

.form__note {
  font-size: .76rem;
  color: var(--clr-text-muted);
  text-align: center;
  margin-top: .2rem;
  line-height: 1.5;
}

/* =====================================================
   SCROLL-TO-TOP BUTTON
   ===================================================== */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background-color: var(--clr-accent);
  color: var(--clr-dark);
  border: none;
  border-radius: var(--r-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
  z-index: 999;
  opacity: 0;
  transform: translateY(12px);
  transition: all var(--t-base);
  box-shadow: var(--shadow-lg);
}

.scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Görünmezken tab sırasından ve tıklamadan çıksın (opacity:0 tek başına yetmez) */
.scroll-top:not(.visible),
.whatsapp-float:not(.visible),
.mobile-cta:not(.visible) {
  visibility: hidden;
  pointer-events: none;
}

.scroll-top:hover {
  background-color: var(--clr-accent-dark);
  transform: translateY(-2px);
}

/* =====================================================
   PRELOADER
   ===================================================== */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--clr-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .5s ease, visibility .5s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* gizlendikten sonra sonsuz nabız animasyonu ana iş parçacığını meşgul etmesin */
.preloader.hidden .preloader__logo { animation: none; }

.preloader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}

.preloader__logo {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border-radius: 18px;
  animation: preloaderPulse 1s ease-in-out infinite;
}

@keyframes preloaderPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: .7; }
}

.preloader__bar {
  width: 180px;
  height: 3px;
  background: rgba(255,255,255,.1);
  border-radius: var(--r-full);
  overflow: hidden;
}

.preloader__bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-electric));
  border-radius: var(--r-full);
  animation: preloaderFill 1.2s ease-in-out forwards;
}

@keyframes preloaderFill {
  to { width: 100%; }
}

.preloader__text {
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
}

/* =====================================================
   SCROLL PROGRESS BAR
   ===================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-electric));
  z-index: 10001;
  transition: width .1s linear;
  border-radius: 0 2px 2px 0;
}

/* =====================================================
   HERO TYPING CURSOR
   ===================================================== */
.hero__cursor {
  display: inline;
  color: var(--clr-accent);
  font-weight: 300;
  animation: cursorBlink .75s step-end infinite;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* =====================================================
   REVEAL VARIANTS
   ===================================================== */
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal-scale {
  opacity: 0;
  transform: scale(.92);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal-left.visible,
.reveal-right.visible,
.reveal-scale.visible {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* Mobilde yatay reveal kaymasını dikeye çevir: dar ekranda translateX(±40px),
   öğe görünür olana kadar içeriği viewport dışına itip sağda boşluk / yatay
   kaydırma oluşturuyordu. Dikey kayma aynı animasyon hissini taşma olmadan verir. */
@media (max-width: 768px) {
  .reveal-left,
  .reveal-right {
    transform: translateY(28px);
  }
}

/* =====================================================
   WHATSAPP FLOATING BUTTON
   ===================================================== */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 56px;
  height: 56px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.65rem;
  z-index: 998;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  transition: all var(--t-base);
  opacity: 0;
  transform: scale(0);
}

.whatsapp-float.visible {
  opacity: 1;
  transform: scale(1);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,.55), 0 0 0 6px rgba(37,211,102,.15);
  color: #fff;
}

.whatsapp-float__tooltip {
  position: absolute;
  left: calc(100% + .75rem);
  background: var(--clr-dark);
  color: var(--clr-white);
  font-family: var(--font-heading);
  font-size: .78rem;
  font-weight: 600;
  padding: .4rem .85rem;
  border-radius: var(--r-sm);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--t-base);
  pointer-events: none;
  box-shadow: var(--shadow-md);
}

.whatsapp-float__tooltip::before {
  content: '';
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-right-color: var(--clr-dark);
}

.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* =====================================================
   CONTACT MAP
   ===================================================== */
.contact__map {
  margin-top: 3rem;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--clr-border);
  transition: box-shadow var(--t-base), opacity .65s ease, transform .65s ease;
}

.contact__map:hover {
  box-shadow: var(--shadow-xl);
}

.contact__map iframe {
  display: block;
}

/* =====================================================
   SERVICE CARD ICON HOVER
   ===================================================== */
.service-card:hover .service-card__icon {
  transform: rotateY(180deg);
  transition: transform .5s ease;
}

.service-card__icon {
  transition: transform .5s ease;
  transform-style: preserve-3d;
}

/* =====================================================
   PROJECT CARD GLOW ON HOVER
   ===================================================== */
.project-card--overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  border: 2px solid transparent;
  z-index: 3;
  pointer-events: none;
  transition: border-color var(--t-base);
}

.project-card--overlay:hover::after {
  border-color: rgba(245,158,11,.4);
}

.project-card--overlay .project-card__overlay-content::after {
  content: '';
  position: absolute;
  top: -120%;
  left: -40%;
  width: 50%;
  height: 220%;
  transform: rotate(18deg);
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.15), transparent);
  opacity: 0;
  transition: all .55s ease;
  pointer-events: none;
}

.project-card--overlay:hover .project-card__overlay-content::after {
  left: 115%;
  opacity: 1;
}

/* =====================================================
   HERO PARTICLES
   ===================================================== */
.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}

.particle:nth-child(1)  { left: 12%; animation-duration: 8s;  animation-delay: 0s;   }
.particle:nth-child(2)  { left: 25%; animation-duration: 10s; animation-delay: 1.5s; }
.particle:nth-child(3)  { left: 38%; animation-duration: 7s;  animation-delay: 0.8s; }
.particle:nth-child(4)  { left: 50%; animation-duration: 9s;  animation-delay: 2s;   }
.particle:nth-child(5)  { left: 62%; animation-duration: 11s; animation-delay: 0.3s; }
.particle:nth-child(6)  { left: 75%; animation-duration: 8s;  animation-delay: 3s;   }
.particle:nth-child(7)  { left: 88%; animation-duration: 10s; animation-delay: 1s;   }
.particle:nth-child(8)  { left: 18%; animation-duration: 12s; animation-delay: 2.5s; width: 2px; height: 2px; background: var(--clr-electric); }
.particle:nth-child(9)  { left: 42%; animation-duration: 9s;  animation-delay: 4s;   width: 2px; height: 2px; background: var(--clr-electric); }
.particle:nth-child(10) { left: 68%; animation-duration: 7s;  animation-delay: 1.2s; width: 4px; height: 4px; }
.particle:nth-child(11) { left: 82%; animation-duration: 11s; animation-delay: 3.5s; width: 2px; height: 2px; background: var(--clr-electric); }
.particle:nth-child(12) { left: 55%; animation-duration: 10s; animation-delay: 0.5s; }

@keyframes particleFloat {
  0%   { bottom: -5%; opacity: 0; transform: translateX(0); }
  10%  { opacity: .6; }
  50%  { opacity: .3; transform: translateX(20px); }
  90%  { opacity: .5; }
  100% { bottom: 105%; opacity: 0; transform: translateX(-15px); }
}

/* =====================================================
   WAVE DIVIDER
   ===================================================== */
.wave-divider {
  position: absolute;
  left: 0;
  right: 0;
  overflow: hidden;
  line-height: 0;
  pointer-events: none;
}

.wave-divider--top {
  top: 0;
  color: var(--surface);
}

.wave-divider svg {
  display: block;
  width: 100%;
  height: 40px;
}

/* =====================================================
   PROCESS / WORKFLOW
   ===================================================== */
.process {
  background: var(--th-surface);
}

.process__timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

/* Connecting line */
.process__timeline::before {
  content: '';
  position: absolute;
  top: 72px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-electric), var(--clr-accent));
  opacity: .3;
  z-index: 0;
}

.process__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

.process__step-number {
  font-family: var(--font-heading);
  font-size: .7rem;
  font-weight: 700;
  color: var(--clr-accent-text);
  letter-spacing: .1em;
  margin-bottom: .5rem;
}

.process__step-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-dark), var(--clr-navy));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 24px rgba(10,22,40,.25);
  position: relative;
  transition: all var(--t-base);
}

.process__step-icon::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px dashed rgba(245,158,11,.25);
  animation: spinSlow 20s linear infinite;
}

@keyframes spinSlow {
  to { transform: rotate(360deg); }
}

.process__step:hover .process__step-icon {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(245,158,11,.25);
}

.process__step-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--th-heading);
  margin-bottom: .5rem;
}

.process__step-desc {
  font-size: .85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  max-width: 220px;
}

/* =====================================================
   TRUST BADGES
   ===================================================== */
.trust__inner {
  text-align: center;
}

.trust__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-bottom: 2rem;
  letter-spacing: .02em;
}

.trust__badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
}

.trust__badge {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-heading);
  font-size: .88rem;
  font-weight: 600;
  color: var(--clr-text);
  padding: .6rem 1.25rem;
  background: var(--th-surface);
  border-radius: var(--r-full);
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--t-base);
}

.trust__badge i {
  color: var(--clr-accent-dark);
  font-size: 1.05rem;
}

.trust__badge:hover {
  border-color: var(--clr-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,158,11,.15);
}

/* =====================================================
   CERTIFICATES (Sertifikalarımız)
   ===================================================== */
.certs__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.certs__item {
  margin: 0;
  background: var(--th-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.certs__item img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--clr-bg-gray);
}

.certs__item figcaption {
  padding: .9rem 1.1rem;
  font-family: var(--font-heading);
  font-size: .86rem;
  font-weight: 600;
  color: var(--th-heading);
  line-height: 1.4;
  text-align: center;
  border-top: 1px solid var(--clr-border);
}

@media (max-width: 768px) {
  .certs__grid { grid-template-columns: 1fr; }
}

/* =====================================================
   SECURITY & COMPLIANCE SECTION
   ===================================================== */
.security {
  background:
    radial-gradient(circle at 12% 14%, rgba(245,158,11,.08), transparent 40%),
    radial-gradient(circle at 86% 82%, rgba(59,130,246,.1), transparent 36%),
    linear-gradient(180deg, var(--th-surface-2) 0%, var(--th-tint-blue) 100%);
}

.security__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.security-card {
  position: relative;
  background: var(--th-surface);
  border: 1px solid rgba(30,58,95,.12);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  padding: 1.35rem 1.2rem;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base), opacity .65s ease;
}

.security-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  border: 1px solid transparent;
  background: linear-gradient(140deg, rgba(245,158,11,.4), rgba(59,130,246,.45), rgba(16,185,129,.35)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}

.security-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(245,158,11,.25);
}

.security-card:hover::after {
  opacity: 1;
}

.security-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(245,158,11,.16), rgba(59,130,246,.2));
  color: var(--th-heading);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: .85rem;
}

.security-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--th-heading);
  line-height: 1.35;
  margin-bottom: .45rem;
}

.security-card__desc {
  font-size: .86rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

.security__status {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .8rem;
}

.security__pill {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--font-heading);
  font-size: .79rem;
  font-weight: 600;
  color: var(--clr-dark);
  background: rgba(255,255,255,.78);
  padding: .45rem .8rem;
  border-radius: var(--r-full);
  border: 1px solid rgba(30,58,95,.14);
  box-shadow: var(--shadow-sm);
}

.security__pill i {
  color: var(--clr-accent-dark);
}

/* =====================================================
   WHY-CARD GRADIENT BORDER ON HOVER
   ===================================================== */
.why-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  padding: 2px;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-electric), var(--clr-accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}

.why-card:hover::before {
  opacity: 1;
}

.why-card:hover {
  border-color: transparent;
}

/* =====================================================
   MOBILE STICKY CTA BAR
   ===================================================== */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 997;
  background: rgba(10,22,40,.92);
  border-top: 1px solid rgba(255,255,255,.1);
  padding: .5rem .5rem calc(.5rem + env(safe-area-inset-bottom));
  gap: .5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transform: translateY(100%);
  transition: transform var(--t-base), visibility 0s linear var(--t-base);
}

.mobile-cta.visible {
  transform: translateY(0);
  transition-delay: 0s;
}

.mobile-cta__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .7rem .5rem;
  border-radius: var(--r-sm);
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  transition: all var(--t-base);
  min-height: 42px;
}

.mobile-cta__btn--call {
  background: var(--th-surface);
  color: var(--th-heading);
}

.mobile-cta__btn--wp {
  background: #25d366;
  color: var(--clr-dark);   /* beyaz/#25d366 = 1.98:1; koyu/#25d366 = ~9:1 */
}

.mobile-cta__btn--form {
  background: var(--clr-accent);
  color: var(--clr-dark);
}

/* Form focus animation (transform transition + lift on focus) and .form__group
   position are consolidated into the base .form__input / .form__group rules above. */

/* =====================================================
   KEYFRAME ANIMATIONS
   ===================================================== */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-22px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(34,197,94,.5); }
  70% { box-shadow: 0 0 0 11px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* =====================================================
   RESPONSIVE — 1024px
   ===================================================== */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: 1fr 1fr;
  }

}

/* =====================================================
   RESPONSIVE — 768px
   ===================================================== */
@media (max-width: 768px) {
  .section { padding: 3.2rem 0; }

  /* Hero */
  .hero__stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__decoration { display: none; }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    justify-content: center;
    width: 100%;
  }

  .hero__live-pill {
    font-size: .72rem;
    padding: .4rem .72rem;
    margin-bottom: .85rem;
  }

  .hero__spotlight {
    width: 280px;
    height: 280px;
    left: 68%;
    top: 30%;
    opacity: .65;
  }

  .hero__title {
    font-size: clamp(1.9rem, 8vw, 2.8rem);
  }

  .hero__subtitle {
    font-size: .98rem;
    line-height: 1.7;
  }

  /* About */
  .about__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  /* Services */
  .services__grid {
    grid-template-columns: 1fr;
  }

  /* Process */
  .process__timeline {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem 1rem;
  }

  .process__timeline::before {
    display: none;
  }

  /* Why us */
  .why-us__grid {
    grid-template-columns: 1fr 1fr;
  }

  .why-us__banner img { height: 200px; }

  /* Trust badges */
  .trust__badges {
    gap: .75rem;
  }

  .trust__badge {
    font-size: .8rem;
    padding: .5rem 1rem;
  }

  .security__grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Projects */
  .projects__grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(78%, 320px);
    overflow-x: auto;
    overflow-y: hidden; /* tek yönlü kaydırma: dikey OS scrollbar/ok görünmesini engeller */
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    gap: .95rem;
    padding-bottom: .4rem;
    margin-inline: -0.2rem;
  }

  .projects__grid::-webkit-scrollbar {
    height: 6px;
  }

  .projects__grid::-webkit-scrollbar-thumb {
    background: rgba(245,158,11,.55);
    border-radius: var(--r-full);
  }

  .project-card--overlay {
    aspect-ratio: 4 / 3;
    scroll-snap-align: start;
  }

  /* Wave divider */
  .wave-divider svg {
    height: 25px;
  }

  /* CTA banner */
  .cta-banner__content {
    flex-direction: column;
    text-align: center;
  }

  .cta-banner__actions {
    justify-content: center;
    width: 100%;
  }

  /* Contact */
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .contact__map iframe {
    height: 250px;
  }

  /* WhatsApp */
  .whatsapp-float {
    width: 50px;
    height: 50px;
    font-size: 1.45rem;
    bottom: calc(5rem + env(safe-area-inset-bottom));
    left: 1.5rem;
  }

  .whatsapp-float__tooltip {
    display: none;
  }

  /* Scroll-to-top — above mobile CTA */
  .scroll-top {
    bottom: calc(5rem + env(safe-area-inset-bottom));
  }

  /* Mobile CTA bar */
  .mobile-cta {
    display: flex;
  }

  /* Form */
  .form__row {
    grid-template-columns: 1fr;
  }

  .contact__form-security {
    margin-top: -1.1rem;
    margin-bottom: .95rem;
  }
}

/* =====================================================
   RESPONSIVE — 480px
   ===================================================== */
@media (max-width: 480px) {
  :root {
    --container-pad: 1.1rem;
  }

  .why-us__grid {
    grid-template-columns: 1fr;
  }

  .hero__stat-number {
    font-size: 1.55rem;
  }

  .hero__title {
    font-size: clamp(1.72rem, 9.5vw, 2.15rem);
    line-height: 1.14;
  }

  .hero__subtitle {
    font-size: .93rem;
  }

  .hero__live-pill {
    max-width: 100%;
    line-height: 1.45;
  }

  .cta-banner__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .projects__grid {
    grid-auto-columns: minmax(86%, 300px);
  }

  .project-card--overlay {
    aspect-ratio: 3 / 2;
  }

  .process__timeline {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .security__grid {
    grid-template-columns: 1fr;
  }

  .form__consent {
    align-items: flex-start;
  }

  .trust__badge {
    font-size: .75rem;
    padding: .45rem .9rem;
  }

  .mobile-cta__btn {
    font-size: .75rem;
    padding: .62rem .35rem;
  }
}

/* =====================================================
   MOTION ACCESSIBILITY
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* =====================================================
   FOCUS-VISIBLE — Klavye Navigasyonu
   ===================================================== */
:focus {
  outline: none;
}

/* Halka rengi --clr-accent-text (#b45309): açık yüzeylerde >=4.6:1, koyu (#0a1628) üzerinde ~3.6:1.
   border-radius bilinçli olarak YOK: modern tarayıcılar halkayı öğenin kendi yarıçapına uydurur
   (.whatsapp-float gibi yuvarlak öğeler klavye odağında kareye dönmesin). */
:focus-visible {
  outline: 3px solid var(--clr-accent-text);
  outline-offset: 3px;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--clr-accent-text);
  outline-offset: 3px;
}

.form__input:focus-visible {
  outline: none; /* border + box-shadow ile yönetilir */
}

.btn:focus-visible {
  outline: 3px solid var(--clr-accent-text);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(245,158,11,.2);
}

/* =====================================================
   ENHANCED SERVICE CARD HOVER GLOW
   ===================================================== */
.service-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, rgba(245,158,11,.15), rgba(59,130,246,.1));
  opacity: 0;
  transition: opacity var(--t-base);
  z-index: -1;
  filter: blur(12px);
}

.service-card:hover::after {
  opacity: 1;
}

/* =====================================================
   ENHANCED STAT COUNTER GLOW
   ===================================================== */
.hero__stat-number {
  text-shadow: 0 0 20px rgba(245,158,11,.3);
}

/* =====================================================
   COOKIE CONSENT (Çerez Onayı)
   ===================================================== */
.cookie-consent {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: calc(1rem + env(safe-area-inset-bottom));
  z-index: 10000;
  max-width: 720px;
  margin-inline: auto;
  background: var(--clr-dark);
  color: #e6edf5;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--r-md);
  box-shadow: 0 18px 48px rgba(0, 0, 0, .4);
  padding: 1.1rem 1.25rem;
  transform: translateY(160%);
  opacity: 0;
  transition: transform .4s ease, opacity .4s ease;
}
.cookie-consent.visible {
  transform: translateY(0);
  opacity: 1;
}
.cookie-consent[hidden] {
  display: none;
}
.cookie-consent__body {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.cookie-consent__text {
  flex: 1 1 300px;
  font-size: .9rem;
  line-height: 1.55;
  color: #c7d3e0;
  margin: 0;
}
.cookie-consent__text a {
  color: var(--clr-accent-light);
}
.cookie-consent__actions {
  display: flex;
  gap: .6rem;
  flex-shrink: 0;
}
.cookie-consent__btn {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: .88rem;
  padding: .6rem 1.2rem;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.cookie-consent__btn--accept {
  background: var(--clr-accent);
  color: var(--clr-dark);
}
.cookie-consent__btn--accept:hover {
  background: var(--clr-accent-light);
  transform: translateY(-1px);
}
.cookie-consent__btn--reject {
  background: transparent;
  color: #c7d3e0;
  border-color: rgba(255, 255, 255, .25);
}
.cookie-consent__btn--reject:hover {
  border-color: #fff;
  color: #fff;
}
.cookie-consent__btn:focus-visible {
  outline: 3px solid var(--clr-accent-light);
  outline-offset: 2px;
}
@media (max-width: 480px) {
  .cookie-consent__actions { width: 100%; }
  .cookie-consent__btn { flex: 1; }
}

/* Invalid state for the Turnstile captcha container */
.form__captcha.is-invalid {
  outline: 2px solid #ef4444;
  outline-offset: 4px;
  border-radius: var(--r-sm);
}

/* =====================================================
   HABERLER & GÜNCEL (News & Updates)
   ===================================================== */
.news__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
  align-items: start;
}
.news-card {
  background: var(--th-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: transform var(--t-base), box-shadow var(--t-base), opacity .65s ease;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}
.news-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--clr-bg-gray);
}
.news-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.news-card__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.news-card:hover .news-card__media img {
  transform: scale(1.05);
}
.news-card:hover .news-card__media video {
  transform: scale(1.05);
}
.news-card__cat {
  position: absolute;
  top: .85rem;
  left: .85rem;
  background: rgba(10, 22, 40, .82);
  color: #fff;
  font-family: var(--font-heading);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .02em;
  padding: .3rem .7rem;
  border-radius: var(--r-full);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.news-card__body {
  padding: 1.4rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: .55rem;
}
.news-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--th-heading);
  line-height: 1.3;
}
.news-card__text {
  font-size: .92rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}
@media (max-width: 480px) {
  .news__grid { grid-template-columns: 1fr; }
}

/* =====================================================
   KATALOG (Corporate Catalog band)
   ===================================================== */
.catalog {
  background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-dark-mid) 100%);
  color: #fff;
}
.catalog__inner {
  display: grid;
  grid-template-columns: minmax(200px, 300px) 1fr;
  gap: 2.75rem;
  align-items: center;
}
.catalog__media {
  display: flex;
  justify-content: center;
}
.catalog__doc {
  position: relative;
  width: 200px;
  aspect-ratio: 3 / 4;
  border-radius: var(--r-md);
  background: linear-gradient(160deg, var(--th-surface) 0%, var(--th-surface-3) 100%);
  box-shadow: 0 22px 55px rgba(0, 0, 0, .5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--th-heading);
  border: 1px solid rgba(255, 255, 255, .25);
  text-decoration: none;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.catalog__doc:hover {
  transform: translateY(-6px) rotate(-1deg);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .55);
}
.catalog__doc i {
  font-size: 3.6rem;
  color: #e2483d;
}
.catalog__doc-label {
  font-family: var(--font-heading);
  font-weight: 700;
  text-align: center;
  line-height: 1.3;
  font-size: 1.02rem;
}
.catalog__doc-badge {
  position: absolute;
  top: .7rem;
  right: .7rem;
  background: #e2483d;
  color: #fff;
  font-family: var(--font-heading);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .05em;
  padding: .2rem .5rem;
  border-radius: var(--r-sm);
}
.catalog__content .section__badge {
  background: rgba(245, 158, 11, .16);
  color: var(--clr-accent-light);
}
.catalog__content .section__title {
  color: #fff;
  text-align: left;
}
.catalog__text {
  color: rgba(255, 255, 255, .82);
  margin: 1rem 0 1.6rem;
  line-height: 1.75;
}
.catalog__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .catalog__inner { grid-template-columns: 1fr; text-align: center; }
  .catalog__media { order: -1; }
  .catalog__content .section__title { text-align: center; }
  .catalog__actions { justify-content: center; }
}

/* =====================================================
   SSS / FAQ (accessible, no-JS via <details>)
   ===================================================== */
.faq__list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: .85rem;
}
.faq-item {
  background: var(--th-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-item__q {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.3rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--th-heading);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item__q::-webkit-details-marker { display: none; }
.faq-item__q i {
  color: var(--clr-accent-dark);
  transition: transform var(--t-fast);
  flex-shrink: 0;
}
.faq-item[open] .faq-item__q i { transform: rotate(180deg); }
.faq-item__a {
  padding: 0 1.3rem 1.2rem;
  color: var(--clr-text-muted);
  line-height: 1.75;
}
.faq-item__q:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: -3px;
}

/* =====================================================
   HERO ENERGY CIRCUIT (interactive canvas)
   ===================================================== */
.hero__circuit {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: .55;
  mix-blend-mode: screen;
}

/* =====================================================
   MÜHENDİSLİK VİTRİNİ — Aktif EMI Filtre osiloskop demo
   ===================================================== */
.showcase {
  background: linear-gradient(135deg, #081120 0%, #0d1f3c 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.showcase .section__badge {
  background: rgba(245, 158, 11, .16);
  color: var(--clr-accent-light);
}
.showcase .section__title { color: #fff; }
.showcase .section__desc { color: rgba(255, 255, 255, .72); }
.scope {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 1.75rem;
  align-items: stretch;
  max-width: 980px;
  margin: 0 auto;
}
.scope__screen {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 35%, #0c1c34 0%, #050b15 100%);
  border: 1px solid rgba(59, 130, 246, .28);
  box-shadow: inset 0 0 70px rgba(0, 0, 0, .65), 0 22px 55px rgba(0, 0, 0, .45);
  min-height: 300px;
}
.scope__screen canvas {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.scope__tag {
  position: absolute;
  top: .8rem;
  left: 1rem;
  font-family: var(--font-heading);
  font-size: .6875rem;
  letter-spacing: .18em;
  color: #7fb0f7;
}
.scope__state {
  position: absolute;
  top: .7rem;
  right: 1rem;
  font-family: var(--font-heading);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: .25rem .6rem;
  border-radius: var(--r-full);
  background: rgba(248, 113, 113, .16);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, .4);
  transition: all var(--t-base);
}
.scope__state.is-on {
  background: rgba(52, 211, 153, .16);
  color: #34d399;
  border-color: rgba(52, 211, 153, .45);
}
.scope__panel {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  justify-content: center;
}
.scope__readouts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
.readout {
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: var(--r-md);
  padding: .7rem .9rem;
}
.readout__label {
  display: block;
  font-size: .6875rem;
  color: rgba(255, 255, 255, .55);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .15rem;
}
.readout__value {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
  transition: color var(--t-base);
}
.readout__value--good { color: #34d399; }
.readout__value--bad { color: #f87171; }
.scope__toggle { align-self: flex-start; }
.scope__toggle.is-on {
  background: #10b981;
  color: #fff;
}
.scope__hint {
  font-size: .85rem;
  color: rgba(255, 255, 255, .6);
  line-height: 1.65;
}
@media (max-width: 768px) {
  .scope { grid-template-columns: 1fr; }
  .scope__screen { min-height: 230px; }
  .scope__toggle { align-self: stretch; text-align: center; justify-content: center; }
}

/* =====================================================
   BİLGİ BANKASI — shared doc header, article & hub
   ===================================================== */
.doc-shell { background: var(--clr-bg); }

.breadcrumb {
  max-width: 820px;
  margin: 1.4rem auto 0;
  padding: 0 var(--container-pad);
  font-size: .85rem;
  color: var(--clr-text-muted);
}
.breadcrumb a {                    /* renk dışında alt çizgiyle de ayrışır (WCAG 1.4.1); dokunma alanı ≥ 24 px */
  display: inline-block;
  padding-block: .2rem;
  color: var(--clr-accent-text);
  text-decoration: underline;
  text-decoration-color: rgba(180, 83, 9, .35);
  text-underline-offset: 3px;
}
.breadcrumb a:hover { text-decoration-color: currentColor; }

/* Article */
.article { max-width: 820px; margin: 0 auto; padding: 1.4rem var(--container-pad) 3.5rem; }
.article__cat {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--th-amber-ink);                            /* amber-800: ~6.5:1 on the pill (--clr-accent-text was 4.4:1) */
  background: rgba(245, 158, 11, .12);
  padding: .3rem .8rem;
  border-radius: var(--r-full);
  margin-bottom: 1rem;
}
.article h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  font-weight: 800;
  color: var(--th-heading);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: .9rem;
}
.article__summary { font-size: 1.12rem; color: var(--clr-text-muted); line-height: 1.7; margin-bottom: 1.5rem; }
.article h2 { font-family: var(--font-heading); font-size: 1.45rem; font-weight: 700; color: var(--th-heading); margin: 2rem 0 .8rem; }
.article p { color: var(--clr-text); line-height: 1.8; margin-bottom: 1rem; }
.article__list { margin: .4rem 0 1.2rem 1.2rem; }
.article__list li { margin-bottom: .5rem; line-height: 1.7; color: var(--clr-text); }

.kb-keyfacts { background: linear-gradient(135deg, #0a1628, #132742); color: #fff; border-radius: var(--r-lg); padding: 1.4rem 1.6rem; margin: 1.75rem 0; }
.kb-keyfacts h2 { font-family: var(--font-heading); font-size: .95rem; letter-spacing: .04em; text-transform: uppercase; color: var(--clr-accent-light); margin: 0 0 .8rem; }
.kb-keyfacts ul { list-style: none; display: grid; gap: .6rem; }
.kb-keyfacts li { position: relative; padding-left: 1.7rem; line-height: 1.55; color: rgba(255, 255, 255, .9); }
.kb-keyfacts a, .article .kb-keyfacts li a:not(.btn), .article .kb-keyfacts li a:not(.btn):hover { color: var(--clr-accent-light); }
.kb-keyfacts li::before { content: "\f0e7"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: .1rem; color: var(--clr-accent); font-size: .9rem; }

.kb-sources { background: var(--clr-bg-gray); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.1rem 1.3rem; margin-top: 1.75rem; font-size: .92rem; }
.kb-sources h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
.kb-sources ul { margin-left: 1.1rem; }
.kb-sources li { margin-bottom: .35rem; }
.kb-sources a { color: var(--clr-accent-text); }

.kb-figure { margin: 1.5rem 0; }
.kb-figure img { display: block; width: 100%; border-radius: var(--r-md); border: 1px solid var(--clr-border); box-shadow: var(--shadow-md); }
.kb-figure figcaption { margin-top: .6rem; font-size: .86rem; color: var(--clr-text-muted); line-height: 1.55; text-align: center; }

.table-scroll { overflow-x: auto; margin: 1rem 0 1.75rem; border: 1px solid var(--clr-border); border-radius: var(--r-md); }
.table-scroll table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.table-scroll th, .table-scroll td { padding: .65rem .9rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--clr-border); }
.table-scroll thead th { background: var(--clr-dark); color: #fff; font-family: var(--font-heading); font-weight: 700; font-size: .8rem; letter-spacing: .03em; text-transform: uppercase; white-space: nowrap; }
.table-scroll tbody tr:nth-child(even) { background: var(--clr-bg-gray); }
.table-scroll td:first-child { font-weight: 600; color: var(--th-heading); white-space: nowrap; }
.table-scroll td:last-child { color: var(--clr-text-muted); }
/* Genel yatay kaydırma sarmalayıcısı: geniş tablo / kod bloklarını <div class="scroll-x"> ile sar */
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
/* Ders sayfalarındaki kod/formül blokları (pre.tool-formula dahil) */
.article pre, pre.tool-formula { background: var(--th-surface-2); border: 1px dashed var(--clr-border); border-radius: 5px; padding: .75rem .9rem; margin: 1rem 0 1.4rem; overflow-x: auto; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .85rem; line-height: 1.5; color: var(--clr-text); max-width: 100%; }
.kb-disclaimer { background: var(--th-tint-amber); border: 1px solid var(--th-amber-line); color: var(--th-amber-ink-2); border-radius: var(--r-md); padding: 1rem 1.2rem; margin-top: 1.25rem; font-size: .85rem; line-height: 1.6; }
.kb-quickanswer { background: linear-gradient(135deg, var(--th-tint-amber), var(--th-tint-amber-2)); border: 1px solid #f59e0b; border-radius: var(--r-lg); padding: 1.3rem 1.5rem; margin: 1.6rem 0; }
.kb-quickanswer__label { display: block; font-family: var(--font-heading); font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--clr-accent-text); margin-bottom: .35rem; }
.kb-quickanswer__value { display: block; font-family: var(--font-heading); font-size: 1.4rem; font-weight: 800; line-height: 1.35; color: var(--th-heading); margin-bottom: .45rem; }
.kb-quickanswer__note { display: block; color: var(--th-text-2); font-size: .92rem; line-height: 1.6; }
.kb-cta { margin-top: 2rem; background: linear-gradient(135deg, var(--clr-dark), var(--clr-dark-mid)); color: #fff; border-radius: var(--r-lg); padding: 1.6rem 1.75rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.kb-cta__text strong { display: block; font-family: var(--font-heading); font-size: 1.18rem; margin-bottom: .25rem; }
.kb-cta__text span { color: rgba(255, 255, 255, .78); font-size: .94rem; }
/* Bilgi bankası ortak kuralları — sayfalardaki <style id="kb-local"> bloğunun birebir kopyası (aynı seçiciler).
   Taşma: .kb-cta düğmesi dar ekranda kutudan taşmasın. Bağlantılar: makale/SSS içindeki metin bağlantıları
   altı çizili ve vurgu renginde (yalnızca renkle ayırt edilmesin). Bloklar sayfalardan kaldırılınca da geçerli kalır. */
.kb-cta > div:last-child { min-width: 0; max-width: 100%; }
.kb-cta .btn { white-space: normal; line-height: 1.25; max-width: 100%; text-align: center; }
.vg-form-actions > .kb-cta { min-width: 0; }
.article p a:not(.btn):not(.kb-card__more),
.article li a:not(.btn),
.article td a,
.faq-item__a a { color: var(--clr-accent-text); text-decoration: underline; text-underline-offset: 2px; }
.article p a:not(.btn):not(.kb-card__more):hover,
.article li a:not(.btn):hover,
.article td a:hover,
.faq-item__a a:hover { text-decoration-thickness: 2px; }
.kb-hero p a { color: #fcd34d; text-decoration: underline; text-underline-offset: 2px; }
.kb-criteria td:first-child { white-space: normal; width: 36%; }

/* Hub */
.kb-hero { background: linear-gradient(135deg, #081120, #0d1f3c); color: #fff; padding: 3rem var(--container-pad) 3.25rem; text-align: center; }
.kb-hero h1 { font-family: var(--font-heading); font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; letter-spacing: -.02em; margin-bottom: .7rem; }
.kb-hero p { max-width: 680px; margin: 0 auto; color: rgba(255, 255, 255, .78); line-height: 1.7; }
.kb-hero .article__byline, .kb-hero .article__byline time { color: rgba(255, 255, 255, .78) !important; }
.kb-hub { max-width: var(--container-max); margin: 0 auto; padding: 2.5rem var(--container-pad) 4rem; }
.kb-cat-group { margin-bottom: 2.5rem; }
.kb-cat-group__title { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 700; color: var(--th-heading); margin-bottom: 1rem; padding-bottom: .45rem; border-bottom: 2px solid var(--clr-accent); display: inline-block; }
.kb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.kb-card { display: flex; flex-direction: column; gap: .55rem; background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.3rem 1.4rem; text-decoration: none; box-shadow: var(--shadow-sm); transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base); }
.kb-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--clr-accent); }
.kb-card__icon { width: 42px; height: 42px; border-radius: 10px; background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-dark)); color: #0a1628; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
.kb-card__title { font-family: var(--font-heading); font-weight: 700; color: var(--th-heading); font-size: 1.05rem; line-height: 1.3; }
.kb-card__desc { color: var(--clr-text-muted); font-size: .9rem; line-height: 1.55; flex: 1; }
.kb-card__more { color: var(--clr-accent-text); font-weight: 600; font-size: .85rem; }
p > a.kb-card__more { display: inline-block; padding: .35rem 0; }
/* 600px altinda menu hamburger ile acilip kapanacagi icin eskiden linkleri gizleyen kural kaldirildi. */

/* Mevzuat & Standartlar Kütüphanesi */
.lib-group { margin-bottom: 2.5rem; }
.lib-group__title { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 700; color: var(--th-heading); margin-bottom: 1rem; padding-bottom: .45rem; border-bottom: 2px solid var(--clr-accent); display: inline-block; }
.lib-list { display: grid; gap: .9rem; }
.lib-item { background: var(--th-surface); border: 1px solid var(--clr-border); border-left: 3px solid var(--clr-accent); border-radius: var(--r-md); padding: 1.1rem 1.3rem; box-shadow: var(--shadow-sm); }
.lib-item__title { font-family: var(--font-heading); font-size: 1.05rem; font-weight: 700; color: var(--th-heading); margin-bottom: .35rem; }
.lib-item__summary { color: var(--clr-text-muted); line-height: 1.65; font-size: .94rem; margin-bottom: .6rem; }
.lib-item__meta { display: flex; flex-wrap: wrap; gap: .4rem 1.25rem; align-items: center; font-size: .85rem; }
.lib-item__guide { color: var(--clr-accent-text); font-weight: 600; text-decoration: none; }
.lib-item__guide:hover { text-decoration: underline; }
.lib-item__src { color: var(--clr-text-muted); text-decoration: none; }
.lib-item__src:hover { color: var(--clr-accent-text); text-decoration: underline; }

/* Hub banner linking to the library */
.kb-libcard { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; background: linear-gradient(135deg, var(--clr-dark), var(--clr-dark-mid)); color: #fff; border-radius: var(--r-lg); padding: 1.4rem 1.6rem; margin-bottom: 2.5rem; text-decoration: none; }
.kb-libcard:hover { box-shadow: var(--shadow-xl); }
.kb-libcard__text strong { display: block; font-family: var(--font-heading); font-size: 1.15rem; margin-bottom: .2rem; }
.kb-libcard__text span { color: rgba(255,255,255,.78); font-size: .92rem; }
.kb-libcard__cta { background: var(--clr-accent); color: var(--clr-dark); font-family: var(--font-heading); font-weight: 700; font-size: .9rem; padding: .6rem 1.2rem; border-radius: var(--r-sm); white-space: nowrap; }

/* Akademi */
.akademi-level { display: inline-block; align-self: flex-start; font-family: var(--font-heading); font-size: .6875rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: .25rem .6rem; border-radius: 999px; }
.akademi-level--baslangic { background: var(--th-tint-green-2); color: var(--th-green-ink); }
.akademi-level--orta { background: var(--th-tint-amber-2); color: var(--th-amber-ink); }
.akademi-level--ileri { background: var(--th-tint-red-2); color: var(--th-red-ink); }
.akademi-soon { display: flex; flex-direction: column; gap: .3rem; background: var(--clr-bg-gray); border: 1px dashed var(--clr-border); border-radius: var(--r-md); padding: 1rem 1.2rem; color: var(--clr-text-muted); font-size: .88rem; }
.akademi-soon strong { color: var(--th-heading); font-family: var(--font-heading); font-size: .95rem; }
.akademi-path { background: var(--clr-bg-gray); border-radius: var(--r-md); padding: 1.1rem 1.3rem; margin-bottom: 1.5rem; font-size: .92rem; color: var(--clr-text); line-height: 1.6; }
.akademi-path strong { color: var(--th-heading); }

/* Mini hesap makinesi (hesaplama/ SEO sayfaları) */
.mini-calc { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1.25rem; background: var(--clr-bg-gray); border: 1px solid var(--clr-border); border-radius: var(--r-lg); padding: 1.5rem; margin: 1.75rem 0; }
.mini-calc__fields { display: grid; gap: .9rem; align-content: start; }
.mini-calc__field label { display: block; font-size: .85rem; font-weight: 600; color: var(--th-heading); margin-bottom: .35rem; }
.mini-calc__field input, .mini-calc__field select { width: 100%; border: 1px solid var(--clr-border); border-radius: 5px; padding: .65rem .8rem; font: inherit; color: var(--clr-text); background: var(--th-surface); }
.mini-calc__field input:focus, .mini-calc__field select:focus { outline: 3px solid rgba(59,130,246,.2); border-color: #3b82f6; }
.mini-calc__result { background: var(--clr-dark); color: #fff; border-radius: var(--r-md); padding: 1.25rem 1.4rem; display: flex; flex-direction: column; justify-content: center; gap: .5rem; }
.mini-calc__result-label { color: var(--clr-accent-light); font-family: var(--font-heading); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.mini-calc__result-value { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 800; line-height: 1.25; }
.mini-calc__result-note { font-size: .85rem; color: rgba(255,255,255,.82); line-height: 1.55; }
@media (max-width: 700px) { .mini-calc { grid-template-columns: 1fr; } }
@media print {
  .mini-calc__result { background: #fff !important; color: #0a1628 !important; border: 1px solid #0a1628; }
  .mini-calc__result * { color: #0a1628 !important; }
}

/* VoltGuard'a Sor */
.qa-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: .6rem 0 0; }
.qa-tag { display: inline-block; font-family: var(--font-heading); font-size: .7rem; font-weight: 700; letter-spacing: .03em; padding: .25rem .6rem; border-radius: 999px; background: var(--th-tint-blue-2); color: var(--th-blue-ink); }
.qa-tag--equipment { background: var(--th-tint-blue-2); color: var(--th-blue-ink); }
.qa-tag--problem { background: var(--th-tint-pink); color: var(--th-pink-ink); }
.qa-card { display: flex; flex-direction: column; gap: .55rem; background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.3rem 1.4rem; text-decoration: none; box-shadow: var(--shadow-sm); transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base); }
.qa-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--clr-accent); }
.qa-card__q { font-family: var(--font-heading); font-weight: 700; color: var(--th-heading); font-size: 1.02rem; line-height: 1.35; }
.qa-form { background: var(--clr-bg-gray); border: 1px solid var(--clr-border); border-radius: var(--r-lg); padding: 1.75rem; margin: 2rem 0; display: grid; gap: 1rem; }
.qa-form__row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.qa-form label { display: block; font-size: .88rem; font-weight: 600; color: var(--th-heading); margin-bottom: .35rem; }
.qa-form input, .qa-form select, .qa-form textarea { width: 100%; border: 1px solid var(--clr-border); border-radius: 5px; padding: .7rem .85rem; font: inherit; color: var(--clr-text); background: var(--th-surface); }
.qa-form input:focus, .qa-form select:focus, .qa-form textarea:focus { outline: 3px solid rgba(59,130,246,.2); border-color: #3b82f6; }
.qa-form__hp { position: absolute; left: -9999px; }
.qa-form__status { font-size: .88rem; min-height: 1.3em; }
.qa-form__status--ok { color: var(--th-green-ink); }
.qa-form__status--err { color: var(--th-red-ink); }
@media (max-width: 700px) { .qa-form__row { grid-template-columns: 1fr; } }


/* =====================================================
   VoltGuard Tools — brand banner + shared toolbar
   ===================================================== */
.vg-tools-badge {
  display: flex; align-items: center; gap: .9rem;
  background: linear-gradient(135deg, var(--clr-dark), var(--clr-dark-mid));
  color: #fff; border-radius: var(--r-md);
  padding: 1rem 1.2rem; margin: 1.4rem 0 .8rem;
  box-shadow: var(--shadow-md);
}
.vg-tools-badge i { color: var(--clr-accent); font-size: 1.5rem; }
.vg-tools-badge span { font-family: var(--font-heading); font-weight: 800; font-size: 1.05rem; letter-spacing: .02em; }
.vg-tools-badge small { color: rgba(255,255,255,.75); margin-left: auto; font-size: .82rem; }

.vg-toolbar {
  display: flex; flex-wrap: wrap; gap: .55rem;
  padding: .85rem 1rem; margin: 0 0 1.5rem;
  background: var(--th-tint-amber); border: 1px solid var(--th-amber-line); border-radius: var(--r-md);
}
.vg-toolbar__btn {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--th-surface); color: var(--th-heading);
  border: 1px solid var(--clr-border); border-radius: 6px;
  padding: .55rem .85rem; cursor: pointer;
  font: 600 .86rem var(--font-heading);
  transition: transform var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.vg-toolbar__btn i { color: var(--clr-accent-text); }
.vg-toolbar__btn:hover, .vg-toolbar__btn:focus-visible {
  border-color: var(--clr-accent);
  background: var(--th-tint-amber-2);
  transform: translateY(-1px);
}
.vg-toolbar__btn[aria-pressed="true"] {
  background: var(--clr-accent); color: var(--clr-dark); border-color: var(--clr-accent-dark);
}
.vg-toolbar__btn[aria-pressed="true"] i { color: var(--th-heading); }
@media print {
  .vg-toolbar, .vg-tools-badge small { display: none !important; }
}

/* Toast */
.vg-toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translate(-50%, 20px);
  background: var(--clr-dark); color: #fff; padding: .75rem 1.2rem;
  border-radius: 999px; font: 600 .9rem var(--font-heading);
  box-shadow: var(--shadow-lg); opacity: 0; z-index: 9999;
  transition: opacity var(--t-base), transform var(--t-base);
}
.vg-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.vg-toast--success { background: #166534; }
.vg-toast--error { background: #991b1b; }

/* =====================================================
   Hesap sayfaları (Membership UI)
   ===================================================== */
.vg-auth-shell {
  min-height: 100vh; background: linear-gradient(135deg, var(--th-surface-2), var(--th-tint-blue));
  padding: 3rem var(--container-pad);
  display: grid; place-items: center;
}
.vg-auth-card {
  background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-lg);
  padding: 2.4rem; max-width: 460px; width: 100%; box-shadow: var(--shadow-lg);
}
.vg-auth-card h1 {
  font-family: var(--font-heading); font-size: 1.7rem; font-weight: 800;
  color: var(--th-heading); margin-bottom: .3rem;
}
.vg-auth-card__sub { color: var(--clr-text-muted); margin-bottom: 1.5rem; }
.vg-auth-form { display: grid; gap: 1rem; }
.vg-auth-form label { font: 600 .85rem var(--font-body); color: var(--th-heading); display: block; margin-bottom: .35rem; }
.vg-auth-form input { width: 100%; border: 1px solid var(--clr-border); border-radius: 6px; padding: .75rem .9rem; font: inherit; }
.vg-auth-form input:focus { outline: 3px solid rgba(59,130,246,.2); border-color: #3b82f6; }
.vg-auth-form button {
  background: var(--clr-accent); color: var(--clr-dark); border: 0;
  border-radius: 6px; padding: .85rem 1rem; cursor: pointer;
  font: 700 .95rem var(--font-heading);
}
.vg-auth-form button:hover, .vg-auth-form button:focus-visible { background: var(--clr-accent-dark); color: #fff; }
.vg-auth-alt { margin-top: 1.5rem; font-size: .88rem; color: var(--clr-text-muted); text-align: center; }
.vg-auth-alt a { color: var(--clr-accent-text); font-weight: 600; }
.vg-auth-notice {
  margin-top: 1.5rem; background: var(--th-tint-amber); border-left: 3px solid var(--clr-accent);
  color: var(--th-amber-ink-2); padding: .85rem 1rem; font-size: .82rem; line-height: 1.55;
  border-radius: 4px;
}
.vg-auth-error { background: var(--th-tint-red); border-left: 3px solid #ef4444; color: var(--th-red-ink); padding: .7rem .85rem; border-radius: 4px; font-size: .88rem; }

/* Panel */
.vg-panel {
  max-width: var(--container-max); margin: 0 auto; padding: 2rem var(--container-pad) 4rem;
  display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 2rem;
}
.vg-panel__nav {
  background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md);
  padding: 1rem; display: grid; gap: .3rem; align-content: start;
  position: sticky; top: 90px; box-shadow: var(--shadow-sm);
}
.vg-panel__nav a {
  display: flex; align-items: center; gap: .55rem; padding: .6rem .8rem;
  border-radius: 6px; color: var(--clr-text); font-weight: 600; text-decoration: none;
}
.vg-panel__nav a i { color: var(--clr-accent-text); width: 1.1rem; }
.vg-panel__nav a:hover, .vg-panel__nav a:focus-visible { background: var(--clr-bg-gray); color: var(--th-heading); }
.vg-panel__nav a.is-active { background: var(--clr-dark); color: #fff; }
.vg-panel__nav a.is-active i { color: var(--clr-accent); }
.vg-panel__logout { margin-top: .5rem; background: transparent; border: 1px solid var(--clr-border); color: var(--clr-text); border-radius: 6px; padding: .6rem .8rem; cursor: pointer; font: 600 .9rem var(--font-heading); }
.vg-panel__logout:hover { border-color: #ef4444; color: var(--th-red-ink); }
.vg-panel__main { display: grid; gap: 1.5rem; }
.vg-panel__welcome { background: linear-gradient(135deg, var(--clr-dark), var(--clr-dark-mid)); color: #fff; padding: 1.75rem 2rem; border-radius: var(--r-lg); }
.vg-panel__welcome h1 { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 800; margin: 0 0 .3rem; }
.vg-panel__welcome p { color: rgba(255,255,255,.78); margin: 0; }
.vg-panel__stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.vg-stat { background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.2rem 1.4rem; }
.vg-stat__label { color: var(--clr-text-muted); font: 600 .78rem var(--font-heading); text-transform: uppercase; letter-spacing: .05em; }
.vg-stat__value { font: 800 1.9rem var(--font-heading); color: var(--th-heading); margin: .2rem 0; }
.vg-stat__hint { font-size: .82rem; color: var(--clr-text-muted); }

.vg-section { background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.5rem 1.75rem; }
.vg-section h2 { font-family: var(--font-heading); font-size: 1.2rem; color: var(--th-heading); margin: 0 0 1rem; display: flex; align-items: center; gap: .55rem; }
.vg-section h2 i { color: var(--clr-accent-text); }
.vg-history-list, .vg-favorites-list, .vg-projects-list, .vg-docs-list { display: grid; gap: .8rem; }
.vg-history-item, .vg-favorite-item, .vg-project-item, .vg-doc-item { background: var(--clr-bg-gray); border: 1px solid var(--clr-border); border-radius: 8px; padding: 1rem 1.2rem; display: grid; gap: .35rem; }
.vg-history-item h3, .vg-favorite-item h3, .vg-project-item h3, .vg-doc-item h3 { font: 700 .98rem var(--font-heading); color: var(--th-heading); margin: 0; }
.vg-history-item__meta, .vg-favorite-item__meta { color: var(--clr-text-muted); font-size: .82rem; }
.vg-history-item__value { color: var(--clr-accent-text); font-weight: 700; }
.vg-history-item__actions, .vg-favorite-item__actions, .vg-project-item__actions, .vg-doc-item__actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .35rem; }
.vg-mini-btn { background: var(--th-surface); border: 1px solid var(--clr-border); color: var(--clr-text); font: 600 .78rem var(--font-heading); padding: .35rem .7rem; border-radius: 5px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: .3rem; }
.vg-mini-btn:hover { border-color: var(--clr-accent); background: var(--th-tint-amber); color: var(--th-heading); }
.vg-mini-btn--danger:hover { border-color: #ef4444; background: var(--th-tint-red); color: var(--th-red-ink); }
.vg-empty { color: var(--clr-text-muted); text-align: center; padding: 1.75rem; }
.vg-empty a { color: var(--clr-accent-text); font-weight: 600; }
.vg-inline-form { display: grid; gap: .75rem; grid-template-columns: 1fr 1fr auto; margin-bottom: 1rem; }
.vg-inline-form input, .vg-inline-form textarea { border: 1px solid var(--clr-border); border-radius: 5px; padding: .65rem .8rem; font: inherit; }
.vg-inline-form textarea { grid-column: 1 / -1; min-height: 60px; resize: vertical; }
.vg-inline-form button { background: var(--clr-accent); color: var(--clr-dark); border: 0; border-radius: 5px; padding: .65rem 1.1rem; font: 700 .9rem var(--font-heading); cursor: pointer; }
@media (max-width: 860px) {
  .vg-panel { grid-template-columns: minmax(0, 1fr); }
  .vg-panel__nav { position: static; }
  .vg-inline-form { grid-template-columns: 1fr; }
}


/* =====================================================
   VoltGuard Mühendis & Tekniker Merkezi — form templates
   ===================================================== */
.vg-form-shell { max-width: 1080px; margin: 0 auto; padding: 2rem var(--container-pad) 4rem; }
.vg-form-header { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: flex-end; margin-bottom: 1.5rem; padding-bottom: 1.2rem; border-bottom: 2px solid var(--clr-accent); }
.vg-form-header h1 { font: 800 clamp(1.6rem, 3vw, 2.15rem)/1.15 var(--font-heading); color: var(--th-heading); margin: 0; }
.vg-form-meta { display: grid; gap: .2rem; font-size: .82rem; color: var(--clr-text-muted); text-align: right; }
.vg-form-meta strong { color: var(--th-heading); font-family: var(--font-heading); }
.vg-form-desc { background: var(--th-tint-amber); border-left: 3px solid var(--clr-accent); padding: 1rem 1.2rem; border-radius: 6px; margin-bottom: 1.5rem; color: var(--th-amber-ink-2); font-size: .92rem; line-height: 1.6; }
.vg-form-actions { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 1.5rem; }
.vg-form-actions button, .vg-form-actions a.vg-form-actions__btn { background: var(--th-surface); border: 1px solid var(--clr-border); color: var(--th-heading); padding: .55rem .85rem; border-radius: 6px; cursor: pointer; font: 600 .86rem var(--font-heading); display: inline-flex; align-items: center; gap: .4rem; text-decoration: none; }
.vg-form-actions button i, .vg-form-actions a.vg-form-actions__btn i { color: var(--clr-accent-text); }
.vg-form-actions button:hover, .vg-form-actions a.vg-form-actions__btn:hover { border-color: var(--clr-accent); background: var(--th-tint-amber); transform: translateY(-1px); }
.vg-form-section { background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.4rem 1.6rem; margin-bottom: 1.2rem; overflow-x: auto; }
.vg-form-section h2 { font: 700 1.05rem var(--font-heading); color: var(--th-heading); margin: 0 0 .9rem; padding-bottom: .5rem; border-bottom: 1px solid var(--clr-border); display: flex; align-items: center; gap: .5rem; }
.vg-form-section h2 i { color: var(--clr-accent-text); }
.vg-form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .8rem; }
.vg-form-grid--full > * { grid-column: 1 / -1; }
.vg-form-field { display: grid; gap: .3rem; }
.vg-form-field label { font-size: .8rem; font-weight: 600; color: var(--th-heading); }
.vg-form-field input, .vg-form-field select, .vg-form-field textarea { width: 100%; border: 1px solid var(--clr-border); border-radius: 5px; padding: .55rem .75rem; font: inherit; background: var(--th-surface); }
.vg-form-field input:focus, .vg-form-field select:focus, .vg-form-field textarea:focus { outline: 2px solid rgba(59,130,246,.25); border-color: #3b82f6; }
.vg-form-field textarea { min-height: 72px; resize: vertical; }
.vg-form-table { width: 100%; border-collapse: collapse; margin-top: .5rem; font-size: .88rem; }
.vg-form-table { min-width: 640px; }
/* Dar ekranda tablo sayfayı taşırmasın: tablo bu sarmalayıcı içinde yatay kaydırılır. */
.vg-form-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
.vg-form-table th, .vg-form-table td { border: 1px solid var(--clr-border); padding: .5rem .6rem; text-align: left; vertical-align: top; }
.vg-form-table thead th { background: var(--clr-bg-gray); font-family: var(--font-heading); font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--th-heading); }
.vg-form-table input, .vg-form-table select, .vg-form-table textarea { width: 100%; border: 0; padding: .25rem; background: transparent; font: inherit; }
.vg-form-table input:focus, .vg-form-table select:focus, .vg-form-table textarea:focus { outline: 2px solid rgba(59,130,246,.25); background: var(--th-surface); border-radius: 3px; }
.vg-form-table tr td[data-check] input[type="radio"] { width: auto; margin-right: .3rem; }
.vg-form-check { display: inline-flex; align-items: center; gap: .3rem; margin-right: .8rem; font-size: .82rem; }
.vg-form-signatures { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; margin-top: 2rem; }
.vg-form-signature { border-top: 1px solid var(--clr-dark); padding-top: .35rem; font-size: .82rem; color: var(--clr-text-muted); }
.vg-form-signature strong { display: block; color: var(--th-heading); font-family: var(--font-heading); font-size: .95rem; margin-bottom: 1.75rem; }
.vg-form-add-row { background: var(--th-surface); border: 1px dashed var(--clr-border); color: var(--clr-text-muted); padding: .5rem 1rem; border-radius: 5px; cursor: pointer; font: 600 .82rem var(--font-heading); margin-top: .55rem; }
.vg-form-add-row:hover { border-color: var(--clr-accent); color: var(--th-heading); background: var(--th-tint-amber); }
.vg-form-total { background: var(--clr-dark); color: #fff; padding: 1rem 1.4rem; border-radius: var(--r-md); margin-top: 1rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .75rem; }
.vg-form-total strong { font: 800 1.35rem var(--font-heading); color: var(--clr-accent-light); }
@media print {
  body { background: #fff; }
  .vg-form-actions, .vg-form-add-row, .vg-toolbar, .vg-tools-badge, [data-vg-account] { display: none !important; }
  .vg-form-shell { max-width: 100%; padding: 0; }
  .vg-form-section, .vg-form-desc { break-inside: avoid; box-shadow: none; }
  .vg-form-section { border-color: #999; overflow: visible; }
  a::after { content: '' !important; }
}

/* Mühendis Merkezi hub */
.mm-hero { background: linear-gradient(135deg, #0a1628, #1e3a5f); color: #fff; padding: 3rem var(--container-pad) 3.25rem; text-align: center; }
.mm-hero h1 { font: 800 clamp(2rem, 5vw, 3rem) var(--font-heading); margin-bottom: .7rem; }
.mm-hero p { max-width: 720px; margin: 0 auto; color: rgba(255,255,255,.82); line-height: 1.7; }
.mm-hub { max-width: var(--container-max); margin: 0 auto; padding: 2.5rem var(--container-pad) 4rem; }
.mm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.mm-card { display: flex; flex-direction: column; gap: .5rem; background: var(--th-surface); border: 1px solid var(--clr-border); border-radius: var(--r-md); padding: 1.3rem 1.4rem; text-decoration: none; box-shadow: var(--shadow-sm); transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base); color: inherit; }
.mm-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--clr-accent); }
.mm-card__icon { width: 44px; height: 44px; border-radius: 10px; background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-dark)); color: #0a1628; display: flex; align-items: center; justify-content: center; font-size: 1.15rem; }
.mm-card__title { font: 700 1.05rem var(--font-heading); color: var(--th-heading); }
.mm-card__desc { color: var(--clr-text-muted); font-size: .9rem; line-height: 1.55; flex: 1; }
.mm-card__meta { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .3rem; }
.mm-card__meta span { display: inline-block; font: 700 .7rem var(--font-heading); letter-spacing: .04em; padding: .2rem .55rem; border-radius: 999px; background: var(--th-tint-blue-2); color: var(--th-blue-ink); text-transform: uppercase; }
.mm-card__meta .mm-ver { background: var(--th-tint-amber-2); color: var(--th-amber-ink); }
.mm-card__more { color: var(--clr-accent-text); font-weight: 600; font-size: .85rem; margin-top: .35rem; }