/* ═══════════════════════════════════════════════
   ERBAŞLAR DEMİR ÇELİK — MAIN STYLESHEET
   Tasarım: Endüstriyel sanayi — dövme demir tonu
   Palet: Ham çelik gri + soğuk metal mavi + turuncu kor
═══════════════════════════════════════════════ */

:root {
  /* ── Endüstriyel çelik paleti ── */
  --iron:        #0b0d0f;        /* en derin demir siyahı          */
  --steel-dark:  #141820;        /* hadde çeliği karanlık           */
  --steel:       #1e2530;        /* soğuk hadde yüzeyi              */
  --steel-mid:   #2e3a47;        /* çelik profil orta tonu          */
  --steel-cool:  #3d4f60;        /* soğuk çelik mavi-gri            */
  --steel-light: #7a8c9a;        /* metalik yüzey açık              */
  --steel-pale:  #b8c4cc;        /* paslanmaz parlaklık             */
  --white:       #eef0f2;        /* fabrika beyazı — soğuk          */

  /* ── Kurumsal mor aksanı ── */
  --ember:       #6b6bbb;        /* ana mor — buton zemini, üstü beyaz okunur */
  --ember-hot:   #5a5aaa;        /* hover — biraz koyu              */
  --ember-glow:  #a0a0dc;        /* koyu zeminde link/vurgu — parlak */

  /* ── Kurumsal ikinci renk ── */
  --steel-accent:#1a3a52;        /* kurumsal çelik mavi             */
  --steel-blue:  #245474;        /* endüstriyel mavi                */

  /* ── Metalik vurgu ── */
  --gold:        #9090cc;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Barlow', sans-serif;

  --radius:  4px;
  --radius-lg: 8px;
  --shadow:  0 4px 24px rgba(0,0,0,.18);
  --shadow-lg: 0 12px 48px rgba(0,0,0,.28);

  --nav-h: 72px;
  --top-h: 36px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: #e8ebee;           /* soğuk fabrika gri — beyazdan daha endüstriyel */
  color: var(--steel-dark);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TOPBAR ───────────────────────────── */
.topbar {
  background: var(--steel-accent);
  border-bottom: 1px solid rgba(255,255,255,.06);
  color: var(--steel-pale);
  font-size: .78rem;
  font-weight: 400;
  letter-spacing: .02em;
  height: var(--top-h);
}
.topbar__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}
.topbar__item {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.topbar__item a { color: var(--steel-pale); transition: color .2s; }
.topbar__item a:hover { color: var(--ember-glow); }
.topbar__item--right { margin-left: auto; }
.topbar svg { flex-shrink: 0; opacity: .7; }

/* ── NAVBAR ───────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--steel-dark);
  height: var(--nav-h);
  border-bottom: 3px solid var(--ember);
  box-shadow: 0 2px 0 var(--steel-mid);
  transition: background .3s, box-shadow .3s;
}
.navbar.scrolled {
  background: rgba(26,30,36,.97);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}
.navbar__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Logo */
.navbar__logo, .footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo__mark {
  width: 42px;
  height: 42px;
  background: var(--ember);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(8% 0%, 92% 0%, 100% 8%, 100% 92%, 92% 100%, 8% 100%, 0% 92%, 0% 8%);
  flex-shrink: 0;
}
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.logo__text em {
  font-style: normal;
  font-size: .65rem;
  color: var(--steel-pale);
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* Nav links */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  color: var(--steel-pale);
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: color .2s, background .2s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link:hover, .nav-link.active {
  color: #fff;
  background: rgba(255,255,255,.07);
}
.nav-link.active { color: var(--ember-glow); }
.nav-link--cta {
  background: var(--ember);
  color: #fff !important;
  padding: 8px 18px;
}
.nav-link--cta:hover { background: var(--ember-hot); }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-link--dropdown svg { transition: transform .2s; }
.nav-dropdown:hover .nav-link--dropdown svg,
.nav-dropdown.open .nav-link--dropdown svg { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 240px;
  background: var(--steel-dark);
  border: 1px solid var(--steel-mid);
  border-top: 2px solid var(--ember);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all .22s ease;
  z-index: 100;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 11px 20px;
  font-size: .84rem;
  font-weight: 500;
  color: var(--steel-pale);
  letter-spacing: .02em;
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: background .15s, color .15s, padding-left .15s;
}
.dropdown-menu a:last-child { border-bottom: none; }
.dropdown-menu a:hover {
  background: rgba(107,107,187,.15);
  color: var(--ember-glow);
  padding-left: 26px;
}

/* Burger */
.navbar__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
}
.navbar__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--steel-pale);
  transition: all .25s;
  border-radius: 2px;
}
.navbar__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__burger.open span:nth-child(2) { opacity: 0; }
.navbar__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ─────────────────────────────── */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: var(--iron);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(108deg,
      rgba(11,13,15,.96) 0%,
      rgba(20,24,32,.80) 45%,
      rgba(107,107,187,.18) 75%,
      rgba(90,90,170,.12) 100%);
  z-index: 1;
}
/* çelik levha doku çizgileri */
.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(rgba(36,84,116,.06) 3px, transparent 3px),
    linear-gradient(90deg, rgba(36,84,116,.06) 3px, transparent 3px);
  background-size: 32px 32px, 32px 32px, 160px 160px, 160px 160px;
  z-index: 1;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  padding: 120px 24px 80px;
  width: 100%;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--ember-glow);
  margin-bottom: 20px;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--ember);
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.0;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: .02em;
  margin-bottom: 8px;
}
.hero__title span { color: var(--ember-glow); display: block; }
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--steel-pale);
  font-weight: 300;
  max-width: 560px;
  margin: 16px 0 40px;
  line-height: 1.55;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__stats {
  display: flex;
  gap: 48px;
  margin-top: 72px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.08);
  flex-wrap: wrap;
}
.stat__num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat__num sup { font-size: 1.2rem; color: var(--ember); }
.stat__label {
  font-size: .8rem;
  color: var(--steel-light);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* ── BUTTONS ──────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all .22s;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
}
.btn--primary {
  background: var(--ember);
  color: #fff;
  border-color: var(--ember);
}
.btn--primary:hover {
  background: var(--ember-hot);
  border-color: var(--ember-hot);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(107,107,187,.4);
}
.btn--outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.3);
}
.btn--outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,.08);
  transform: translateY(-2px);
}
.btn--dark {
  background: var(--steel-dark);
  color: #fff;
  border-color: var(--steel-dark);
}
.btn--dark:hover {
  background: var(--iron);
  transform: translateY(-2px);
}

/* ── SECTION HEADERS ──────────────────── */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header--left { text-align: left; }

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 12px;
}
.section-eyebrow::before, .section-eyebrow::after {
  content: '';
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--ember);
}
.section-header--left .section-eyebrow::after { display: none; }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .03em;
  line-height: 1.1;
  color: var(--iron);
}
.section-title.light { color: #fff; }
.section-desc {
  max-width: 580px;
  margin: 16px auto 0;
  color: var(--steel-mid);
  font-size: 1rem;
  line-height: 1.7;
}
.section-header--left .section-desc { margin-left: 0; }

/* ── SERVICES GRID ────────────────────── */
.services { padding: 96px 0; background: #e8ebee; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2px;
  background: var(--steel-mid);
  border: 2px solid var(--steel-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service-card {
  background: #f2f4f6;
  padding: 40px 36px;
  transition: background .2s;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-left: 3px solid transparent;
  transition: background .22s, border-color .22s;
}
.service-card:hover {
  background: #fff;
  border-left-color: var(--ember);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  background: var(--iron);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.service-card__icon svg { color: var(--ember-glow); }
.service-card__num {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--steel-light);
  text-transform: uppercase;
}
.service-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--iron);
  line-height: 1.2;
}
.service-card__desc {
  font-size: .9rem;
  color: var(--steel-mid);
  line-height: 1.65;
  flex: 1;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ember);
  margin-top: 8px;
  transition: gap .2s;
}
.service-card:hover .service-card__link { gap: 10px; }

/* ── ABOUT STRIP ──────────────────────── */
.about-strip {
  padding: 96px 0;
  background: var(--steel-dark);
  position: relative;
  overflow: hidden;
}
.about-strip::before {
  content: 'ERBAŞLAR';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 14rem;
  font-weight: 800;
  color: rgba(255,255,255,.03);
  letter-spacing: .1em;
  text-transform: uppercase;
  pointer-events: none;
  white-space: nowrap;
}
.about-strip__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-strip__content { color: var(--steel-pale); }
.about-strip__content .section-title { color: #fff; }
.about-strip__content .section-desc { color: var(--steel-pale); margin-left: 0; }

.about-strip__text {
  margin-top: 24px;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--steel-pale);
}
.about-strip__text p + p { margin-top: 16px; }
.about-strip__actions { margin-top: 36px; }

.about-strip__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.feature-item {
  background: rgba(255,255,255,.03);
  padding: 32px 28px;
  transition: background .2s;
}
.feature-item:hover { background: rgba(192,57,43,.1); }
.feature-item__icon {
  color: var(--ember);
  margin-bottom: 12px;
}
.feature-item__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: .06em;
  margin-bottom: 6px;
}
.feature-item__desc { font-size: .84rem; color: var(--steel-pale); }

/* ── CTA BAND ─────────────────────────── */
.cta-band {
  background: var(--ember);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 20px,
    rgba(0,0,0,.04) 20px,
    rgba(0,0,0,.04) 22px
  );
}
.cta-band__inner { position: relative; z-index: 1; }
.cta-band__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: .04em;
  margin-bottom: 12px;
}
.cta-band__sub { color: rgba(255,255,255,.85); font-size: 1rem; margin-bottom: 36px; }
.cta-band .btn--outline { border-color: rgba(255,255,255,.5); }
.cta-band .btn--outline:hover { border-color: #fff; background: rgba(255,255,255,.15); }

/* ── PAGE HERO (inner pages) ──────────── */
.page-hero {
  background: var(--iron);
  padding: 80px 0 64px;
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--ember);
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px;
}
.page-hero__inner { position: relative; z-index: 1; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--steel-light);
  margin-bottom: 20px;
  letter-spacing: .04em;
}
.breadcrumb a { color: var(--steel-light); transition: color .2s; }
.breadcrumb a:hover { color: var(--ember-glow); }
.breadcrumb__sep { color: var(--steel-mid); }
.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: #fff;
  line-height: 1.05;
}
.page-hero__title span { color: var(--ember-glow); }
.page-hero__sub {
  font-size: 1.05rem;
  color: var(--steel-pale);
  margin-top: 14px;
  max-width: 560px;
  font-weight: 300;
}

/* ── CONTENT SECTION ──────────────────── */
.content-section { padding: 80px 0; }
.content-section--alt { background: #dde1e5; }  /* soğuk metalik ara zemin */
.content-section--dark {
  background: var(--steel-dark);
  color: var(--steel-pale);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.content-grid--3 { grid-template-columns: repeat(3, 1fr); gap: 40px; }

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 16px;
  color: var(--iron);
}
.content-section--dark .prose h2 { color: #fff; }

.prose p {
  font-size: .95rem;
  line-height: 1.78;
  color: var(--steel-mid);
  margin-bottom: 16px;
}
.content-section--dark .prose p { color: var(--steel-pale); }

.prose strong { color: var(--iron); font-weight: 700; }

/* Feature list */
.feature-list { margin-top: 24px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
  font-size: .92rem;
  color: var(--steel-mid);
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--ember);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

/* ── INFO CARDS ───────────────────────── */
.info-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,.07);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border-top: 3px solid var(--ember);
}
.info-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--iron);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.info-card__title svg { color: var(--ember); }

/* ── VISION/MISSION ───────────────────── */
.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}
.vm-card {
  background: var(--iron);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
}
.vm-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--ember);
}
.vm-card__label {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 14px;
}
.vm-card__text {
  font-size: 1rem;
  line-height: 1.72;
  color: var(--steel-pale);
}

/* ── CONTACT PAGE ─────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-info-item__icon {
  width: 44px;
  height: 44px;
  background: var(--ember);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}
.contact-info-item__label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--steel-light);
  margin-bottom: 4px;
}
.contact-info-item__value {
  font-size: .95rem;
  color: var(--iron);
  font-weight: 500;
}
.contact-info-item__value a {
  color: inherit;
  transition: color .2s;
}
.contact-info-item__value a:hover { color: var(--ember); }

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--steel-mid);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--iron);
  background: #fff;
  border: 1.5px solid var(--steel-pale);
  border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--ember);
  box-shadow: 0 0 0 3px rgba(107,107,187,.12);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* ── PROJECTS PAGE ────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--steel-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--steel-mid);
  transition: transform .22s, box-shadow .22s;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.project-card__img {
  aspect-ratio: 16/10;
  background: var(--steel-mid);
  overflow: hidden;
  position: relative;
}
.project-card__img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--steel-light);
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.project-card__body { padding: 24px; }
.project-card__cat {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 8px;
}
.project-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: .04em;
}

/* ── FOOTER ───────────────────────────── */
.footer { background: var(--iron); color: var(--steel-pale); }
.footer__top { padding: 72px 0 48px; }
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 48px;
}
.footer__col--brand .logo__mark { background: var(--ember); }
.footer__col--brand p {
  margin-top: 20px;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--steel-light);
}
.footer__social {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}
.footer__social a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--steel-mid);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--steel-light);
  transition: all .2s;
}
.footer__social a:hover {
  border-color: var(--ember);
  color: var(--ember-glow);
  background: rgba(107,107,187,.12);
}
.footer__col h4 {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--steel-mid);
}
.footer__col ul { display: flex; flex-direction: column; gap: 8px; }
.footer__col ul li a {
  font-size: .88rem;
  color: var(--steel-light);
  transition: color .2s, padding-left .15s;
  display: block;
}
.footer__col ul li a:hover { color: var(--ember-glow); padding-left: 6px; }

.contact-list { display: flex; flex-direction: column; gap: 14px !important; }
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .88rem;
  color: var(--steel-light);
}
.contact-list li svg { flex-shrink: 0; margin-top: 2px; color: var(--ember); }
.contact-list li a { color: var(--steel-light); transition: color .2s; }
.contact-list li a:hover { color: var(--ember-glow); }

.footer__bottom {
  padding: 20px 0;
  border-top: 1px solid var(--steel-mid);
}
.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer__bottom p { font-size: .8rem; color: var(--steel-mid); }

/* ── RESPONSIVE ───────────────────────── */
@media (max-width: 1024px) {
  .about-strip__inner { grid-template-columns: 1fr; gap: 48px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; gap: 40px; }
  .vm-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .topbar__item--right { display: none; }
  .topbar__inner { gap: 16px; }

  .navbar__nav {
    display: none;
    position: fixed;
    top: calc(var(--top-h) + var(--nav-h));
    left: 0; right: 0;
    background: var(--iron);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    border-top: 2px solid var(--ember);
    max-height: calc(100vh - var(--top-h) - var(--nav-h));
    overflow-y: auto;
  }
  .navbar__nav.open { display: flex; }
  .navbar__burger { display: flex; }

  .nav-dropdown { width: 100%; }
  .nav-link--dropdown { width: 100%; justify-content: space-between; }
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--ember);
    margin-left: 16px;
    border-radius: 0;
    display: none;
  }
  .nav-dropdown.open .dropdown-menu { display: block; }

  .hero { min-height: auto; }
  .hero__content { padding: 100px 24px 64px; }
  .hero__stats { gap: 32px; }

  .services-grid { grid-template-columns: 1fr; }
  .about-strip__features { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .content-grid--3 { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ══════════════════════════════════════════════
   HERO SLIDER
══════════════════════════════════════════════ */
.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slider__track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform .8s cubic-bezier(.77,0,.18,1);
}
.hero-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}
/* Gerçek fotoğraf geldiğinde:  background-image: url('img/slide1.jpg'); */
.hero-slide--1 { background: linear-gradient(135deg, #0b0d0f 0%, #1e2d3d 60%, #0f1a24 100%); }
.hero-slide--2 { background: linear-gradient(135deg, #0b0d0f 0%, #1a2010 60%, #0f150b 100%); }
.hero-slide--3 { background: linear-gradient(135deg, #0b0d0f 0%, #1e1a10 60%, #241408 100%); }

/* Slayt üstüne koyu katman */
.hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(108deg,
    rgba(11,13,15,.92) 0%,
    rgba(11,13,15,.60) 50%,
    rgba(11,13,15,.30) 100%);
}

/* Slider ok butonları */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 52px;
  height: 52px;
  background: rgba(11,13,15,.55);
  border: 1.5px solid rgba(107,107,187,.5);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .2s, border-color .2s;
  clip-path: polygon(6% 0%,94% 0%,100% 6%,100% 94%,94% 100%,6% 100%,0% 94%,0% 6%);
}
.slider-btn:hover { background: var(--ember); border-color: var(--ember); }
.slider-btn--prev { left: 24px; }
.slider-btn--next { right: 24px; }

/* Slider noktaları */
.slider-dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}
.slider-dot {
  width: 28px;
  height: 3px;
  background: rgba(255,255,255,.3);
  cursor: pointer;
  transition: background .3s, width .3s;
  border: none;
}
.slider-dot.active {
  background: var(--ember-glow);
  width: 44px;
}

/* Slayt içi fotoğraf yer tutucu (gerçek img gelince img { object-fit:cover } olur) */
.slide-img-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

/* ══════════════════════════════════════════════
   FOTOĞRAF ÇERÇEVELERİ
   Tüm fotoğraf alanlarında kullanılan standart
   ölçü etiketli placeholder çerçeveleri
══════════════════════════════════════════════ */
.photo-frame {
  position: relative;
  background: var(--steel);
  border: 1.5px dashed var(--steel-cool);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
}

/* Köşe işaretleri — mühendislik çizimi estetiği */
.photo-frame::before,
.photo-frame::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--ember);
  border-style: solid;
}
.photo-frame::before {
  top: 8px; left: 8px;
  border-width: 2px 0 0 2px;
}
.photo-frame::after {
  bottom: 8px; right: 8px;
  border-width: 0 2px 2px 0;
}

.photo-frame__corner-tr,
.photo-frame__corner-bl {
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--ember);
  border-style: solid;
  pointer-events: none;
}
.photo-frame__corner-tr { top: 8px; right: 8px; border-width: 2px 2px 0 0; }
.photo-frame__corner-bl { bottom: 8px; left: 8px; border-width: 0 0 2px 2px; }

/* Ölçü etiketi */
.photo-frame__label {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel-pale);
  text-align: center;
  line-height: 1.4;
}
.photo-frame__size {
  font-family: monospace;
  font-size: .68rem;
  color: var(--ember-glow);
  letter-spacing: .1em;
  margin-top: 2px;
}
.photo-frame__icon {
  color: var(--steel-cool);
  opacity: .7;
}

/* Slayttaki büyük hero fotoğraf alanı */
.photo-frame--hero {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
}
.photo-frame--hero .photo-frame__label { color: rgba(255,255,255,.3); font-size: .8rem; }
.photo-frame--hero .photo-frame__icon { opacity: .2; }

/* Hizmet sayfası içi fotoğraf (540×380) */
.photo-frame--service {
  width: 100%;
  aspect-ratio: 540 / 380;
}

/* About section fotoğraf (640×460) */
.photo-frame--about {
  width: 100%;
  aspect-ratio: 640 / 460;
}

/* Galeri / proje kartı fotoğrafı (460×300) */
.photo-frame--project {
  width: 100%;
  aspect-ratio: 460 / 300;
}

/* Küçük thumbnail (280×200) */
.photo-frame--thumb {
  width: 100%;
  aspect-ratio: 280 / 200;
}

/* Gerçek <img> gelince çerçeve içinde tam kaplar */
.photo-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-frame img ~ .photo-frame__label,
.photo-frame img ~ .photo-frame__size,
.photo-frame img ~ .photo-frame__icon { display: none; }

/* ══════════════════════════════════════════════
   HAKKIMIZDA — ABOUT PHOTO SIDE
══════════════════════════════════════════════ */
.about-photo-wrap {
  position: relative;
}
.about-photo-wrap .photo-frame--about {
  border-color: var(--steel-blue);
}
/* 1985 rozet */
.about-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 90px;
  height: 90px;
  background: var(--ember);
  clip-path: polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 2;
  line-height: 1;
}
.about-badge__year {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .04em;
}
.about-badge__sub {
  font-size: .52rem;
  color: rgba(255,255,255,.85);
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* ══════════════════════════════════════════════
   KURUMSAL BANT (hakkımızda üstü)
══════════════════════════════════════════════ */
.kurumsal-bant {
  background: var(--ember);
  padding: 20px 0;
  position: relative;
  overflow: hidden;
}
.kurumsal-bant::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg,transparent,transparent 16px,rgba(0,0,0,.05) 16px,rgba(0,0,0,.05) 18px);
}
.kurumsal-bant__grid {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.kurumsal-bant__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 48px;
}
.kurumsal-bant__num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.kurumsal-bant__num sup { font-size: 1rem; }
.kurumsal-bant__label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.75);
  margin-top: 4px;
}
.kurumsal-bant__sep {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,.2);
}

/* ══════════════════════════════════════════════
   VİZYON / MİSYON — TAM GENİŞ KARTLAR
══════════════════════════════════════════════ */
.vm-cards-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.vm-card-full {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: background .2s;
}
.vm-card-full:hover { background: rgba(255,255,255,.05); }
.vm-card-full::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--ember);
}
.vm-card-full--alt::before { background: var(--steel-blue); }
.vm-card-full__icon {
  width: 60px;
  height: 60px;
  background: rgba(107,107,187,.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--ember-glow);
}
.vm-card-full--alt .vm-card-full__icon {
  background: rgba(36,84,116,.2);
  color: #5ba0c8;
}
.vm-card-full__content { flex: 1; }
.vm-card-full__label {
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 8px;
}
.vm-card-full--alt .vm-card-full__label { color: #5ba0c8; }
.vm-card-full__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: #fff;
  margin-bottom: 16px;
}
.vm-card-full__text {
  font-size: .93rem;
  line-height: 1.75;
  color: var(--steel-pale);
}
.vm-card-full__text p { margin-bottom: 10px; }

/* ══════════════════════════════════════════════
   SERVICE CARD — GÖRSELLI YENİ YAPI
══════════════════════════════════════════════ */
.service-card__img-link { display: block; text-decoration: none; }
.service-card__body {
  padding: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.service-card--active { border-left-color: var(--ember) !important; background: #fff !important; }

@media(max-width:768px) {
  .vm-cards-row { grid-template-columns: 1fr; }
  .kurumsal-bant__item { padding: 10px 24px; }
  .kurumsal-bant__sep { display: none; }
  .vm-card-full { flex-direction: column; gap: 16px; }
}

/* Logo resim (yüklenince metin logonun yerini alır) */
.navbar__logo-img {
  height: 62px;
  max-width: 240px;
  object-fit: contain;
  display: block;
  /* Beyaz kontur — drop-shadow ile her renkli logoya uyar */
  filter: drop-shadow(0 0 1px #fff)
          drop-shadow(0 0 2px #fff)
          drop-shadow(0 0 3px rgba(255,255,255,.6));
}
.footer__logo-img {
  height: 62px;
  max-width: 240px;
  object-fit: contain;
  display: block;
  margin-bottom: 16px;
  filter: brightness(0) invert(1)
          drop-shadow(0 0 1px rgba(255,255,255,.4));
}
/* Hero başlık ve subtitle geçiş animasyonu */
#heroTitle, #heroSub {
  transition: opacity .3s ease;
}

.cta-band--steel {
  background: var(--steel-accent);
  border-top: 2px solid var(--steel-blue);
  border-bottom: 2px solid var(--steel-blue);
}
.cta-band--steel .cta-band__title { color: #fff; }
.cta-band--steel .cta-band__sub { color: var(--steel-pale); }