/* ================================================================
   DARAMA GROUP — Kapsamlı Stil Dosyası
   Renk: Lacivert (#0a1860) / Beyaz — Index Grup tarzı kurumsal
   Font: Inter (Google Fonts)
   ================================================================ */

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

:root {
  --navy-900:   #030b30;
  --navy-800:   #060e35;
  --navy-700:   #0a1860;
  --navy-600:   #0d2278;
  --navy-500:   #1535a0;
  --navy-400:   #1b4fd8;
  --navy-300:   #3b6ce8;
  --white:      #ffffff;
  --gray-50:    #f4f6fb;
  --gray-100:   #edf0f7;
  --gray-200:   #dce3f0;
  --gray-400:   #9aa5c0;
  --gray-600:   #5a6a8a;
  --gray-800:   #1e2d4a;
  --text:       #1e2d4a;
  --text-light: #4a5c7a;
  --border:     #dce3f0;
  --shadow-sm:  0 2px 8px rgba(10,24,96,.08);
  --shadow-md:  0 6px 24px rgba(10,24,96,.13);
  --shadow-lg:  0 16px 48px rgba(10,24,96,.18);
  --shadow-xl:  0 24px 64px rgba(10,24,96,.22);
  --radius:     10px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --ease:       cubic-bezier(.4,0,.2,1);
  --trans:      all .25s var(--ease);
  --header-h:   72px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; transition: var(--trans); }
ul  { list-style: none; }
p   { line-height: 1.75; }

/* ── LAYOUT ───────────────────────────────────────────────────── */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ── HEADER ───────────────────────────────────────────────────── */
#site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: 0 2px 10px rgba(10,24,96,.06);
  transition: box-shadow .3s var(--ease), padding .25s var(--ease);
}

#site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo img {
  height: 40px;
  width: auto;
  display: block;
  transition: transform .25s;
}
.header-logo:hover img { transform: scale(1.03); }
.header-logo .logo-mobile { display: none; }
.header-logo .logo-desktop { display: block; }

#main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  font-size: .875rem;
  font-weight: 500;
  color: var(--gray-800);
  padding: 8px 14px;
  border-radius: var(--radius);
  position: relative;
  letter-spacing: .01em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--navy-600);
  border-radius: 1px;
  transition: transform .25s var(--ease);
}

.nav-link:hover { color: var(--navy-600); }
.nav-link:hover::after { transform: translateX(-50%) scaleX(1); }
.nav-link.active { color: var(--navy-600); font-weight: 600; }
.nav-link.active::after { transform: translateX(-50%) scaleX(1); }

.nav-cta {
  font-size: .875rem;
  font-weight: 600;
  color: var(--white);
  background: var(--navy-600);
  padding: 9px 20px;
  border-radius: var(--radius);
  margin-left: 8px;
  letter-spacing: .01em;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.nav-cta:hover {
  background: var(--navy-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(10,24,96,.3);
}
.nav-cta.active { background: var(--navy-700); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--navy-700);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ─────────────────────────────────────────────────────── */
.hero {
  position: relative;
  height: 70vh;
  min-height: 520px;
  background: var(--navy-900);
  overflow: hidden;
  margin-top: var(--header-h);
}

/* Dot grid pattern */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.06) 1.5px, transparent 1.5px);
  background-size: 44px 44px;
  pointer-events: none;
}

/* Radial glow */
.hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(27,79,216,.25) 0%, transparent 65%);
  pointer-events: none;
}

/* Hero slider */
.hero-slider {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-slides {
  display: flex;
  height: 100%;
  transition: transform .7s cubic-bezier(.77,0,.175,1);
}

.hero-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,14,53,0.92) 0%, rgba(6,14,53,0.82) 45%, rgba(6,14,53,0.3) 100%);
  z-index: 1;
}

.hero-slide-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Each slide inner */
.hero-slide-inner {
  max-width: 700px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  margin-bottom: 16px;
}
.hero-eyebrow span {
  width: 32px;
  height: 2px;
  background: var(--navy-400);
  border-radius: 1px;
}

.hero-slide-inner h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -.03em;
}

.hero-slide-inner h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #60a5fa, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-slide-inner p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.78);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 540px;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .925rem;
  font-weight: 700;
  color: var(--navy-800);
  background: var(--white);
  padding: 13px 28px;
  border-radius: var(--radius);
  transition: var(--trans);
  letter-spacing: .01em;
}
.btn-hero-primary:hover {
  background: var(--gray-50);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,.2);
}

.btn-hero-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .925rem;
  font-weight: 600;
  color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.1);
  border: 1.5px solid rgba(255,255,255,.3);
  padding: 13px 28px;
  border-radius: var(--radius);
  transition: var(--trans);
}
.btn-hero-outline:hover {
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.5);
  transform: translateY(-2px);
}

/* Hero slider controls */
.hero-controls {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 20px;
}

.hero-arrows {
  display: flex;
  gap: 8px;
}

.hero-arrow {
  width: 42px;
  height: 42px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,.85);
  transition: var(--trans);
}
.hero-arrow:hover {
  background: rgba(255,255,255,.22);
  border-color: rgba(255,255,255,.5);
}
.hero-arrow svg { display: block; }

.hero-dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
  border: none;
  cursor: pointer;
  transition: var(--trans);
  padding: 0;
}
.hero-dot.active {
  width: 28px;
  border-radius: 4px;
  background: var(--white);
}

/* ── STATS BAR ────────────────────────────────────────────────── */
.stats-bar {
  background: var(--navy-900);
  padding: 0;
}

.stats-bar-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 1240px;
  margin: 0 auto;
}

.stat-item {
  padding: 36px 24px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,.08);
  position: relative;
}
.stat-item:last-child { border-right: none; }

.stat-number {
  display: block;
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -.02em;
}

.stat-label {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* ── SPLIT SECTION (Index Grup stili) ─────────────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.split-navy {
  background: var(--navy-700);
  color: var(--white);
  padding: 96px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.split-white {
  background: var(--white);
  padding: 96px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.split-label {
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-bottom: 16px;
}

.split-white .split-label { color: var(--navy-400); }

.split-navy h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}

.split-white h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--navy-800);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}

.split-navy p { color: rgba(255,255,255,.78); margin-bottom: 14px; font-size: .975rem; }
.split-white p { color: var(--text-light); margin-bottom: 14px; font-size: .975rem; }

.split-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  margin-top: 20px;
  transition: gap .2s;
}
.split-link:hover { gap: 14px; }
.split-link svg { transition: transform .2s; }
.split-link:hover svg { transform: translateX(4px); }

.split-link.dark {
  color: var(--navy-600);
}

/* About highlights list */
.check-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.check-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
}
.check-list li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: rgba(255,255,255,.15);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

/* ── SECTION STYLES ───────────────────────────────────────────── */
.section { padding: 96px 0; }
.section-gray { background: var(--gray-50); }
.section-navy { background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-600) 100%); color: var(--white); }

.section-head { text-align: center; margin-bottom: 64px; }
.section-head.left { text-align: left; }

.section-eyebrow {
  display: inline-block;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--navy-400);
  margin-bottom: 10px;
}
.section-navy .section-eyebrow { color: rgba(255,255,255,.6); }

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--navy-800);
  letter-spacing: -.025em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-navy .section-title { color: var(--white); }

.section-divider {
  width: 44px;
  height: 3px;
  background: var(--navy-600);
  border-radius: 2px;
  margin: 0 auto 20px;
}
.section-head.left .section-divider { margin: 0 0 20px; }
.section-navy .section-divider { background: rgba(255,255,255,.4); }

.section-subtitle {
  font-size: .975rem;
  color: var(--text-light);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.75;
}
.section-navy .section-subtitle { color: rgba(255,255,255,.7); }

/* ── SUBSIDIARIES GRID (homepage) ────────────────────────────── */
.subs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.sub-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  display: flex;
  flex-direction: column;
}
.sub-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--navy-300);
}

.sub-card-top {
  padding: 28px 24px 20px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-height: 90px;
}

.sub-card-top.dark-bg {
  background: #0f1e50;
  border-bottom-color: rgba(255,255,255,.1);
}

.sub-logo {
  height: 50px;
  display: flex;
  align-items: center;
  flex: 1;
  overflow: hidden;
}
.sub-logo img {
  max-height: 50px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  object-position: left center;
}

.sub-badge {
  flex-shrink: 0;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-blue   { background: rgba(27,79,216,.12); color: #1b4fd8; border: 1px solid rgba(27,79,216,.2); }
.badge-pink   { background: rgba(219,39,119,.1); color: #db2777; border: 1px solid rgba(219,39,119,.2); }
.badge-gold   { background: rgba(217,119,6,.12); color: #d97706; border: 1px solid rgba(217,119,6,.25); }
.badge-purple { background: rgba(124,58,237,.1); color: #7c3aed; border: 1px solid rgba(124,58,237,.2); }
.badge-red    { background: rgba(220,38,38,.1);  color: #dc2626; border: 1px solid rgba(220,38,38,.2);  }

.sub-card-body { padding: 22px 24px; flex: 1; }
.sub-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 10px;
}
.sub-card-body p {
  font-size: .87rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 14px;
}

.sub-features-mini {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.sub-features-mini li {
  font-size: .8rem;
  color: var(--gray-600);
  padding-left: 12px;
  position: relative;
}
.sub-features-mini li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background: var(--navy-400);
  border-radius: 50%;
}

.sub-card-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  background: var(--gray-50);
}

.sub-site-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .84rem;
  font-weight: 600;
  color: var(--navy-600);
  transition: gap .2s, color .2s;
}
.sub-site-link:hover { color: var(--navy-800); gap: 10px; }

.subs-cta { text-align: center; }

/* ── WHY US ───────────────────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.08);
}

.why-card {
  background: rgba(255,255,255,.05);
  padding: 48px 32px;
  text-align: center;
  transition: background .3s;
  position: relative;
}
.why-card:hover { background: rgba(255,255,255,.1); }

.why-icon {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
  color: rgba(255,255,255,.85);
  transition: background .3s;
}
.why-card:hover .why-icon { background: rgba(255,255,255,.2); }

.why-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.why-card p {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  line-height: 1.7;
}

/* ── LOGO BAND ────────────────────────────────────────────────── */
.logo-band {
  background: var(--gray-100);
  padding: 40px 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.logo-band-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

.logo-band-item {
  height: 40px;
  opacity: .55;
  filter: grayscale(1);
  transition: opacity .3s, filter .3s;
  display: flex;
  align-items: center;
}
.logo-band-item:hover { opacity: 1; filter: none; }
.logo-band-item img { height: 100%; width: auto; object-fit: contain; }

.logo-band-item.dark-item {
  background: #1a2a50;
  border-radius: 8px;
  padding: 6px 14px;
}
.logo-band-item.dark-item img { filter: brightness(0) invert(1); }
.logo-band-item.dark-item:hover { filter: none; opacity: 1; }

/* ── CTA SECTION ──────────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, var(--navy-700) 0%, var(--navy-500) 100%);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.04) 1.5px, transparent 1.5px);
  background-size: 40px 40px;
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.025em;
  margin-bottom: 16px;
}
.cta-section p {
  color: rgba(255,255,255,.75);
  font-size: 1.05rem;
  margin-bottom: 36px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .95rem;
  font-weight: 700;
  color: var(--navy-800);
  background: var(--white);
  padding: 14px 32px;
  border-radius: var(--radius);
  transition: var(--trans);
}
.btn-cta:hover {
  background: var(--gray-50);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,.25);
}

/* ── PAGE HERO (inner pages) ──────────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-600) 100%);
  padding: 80px 0 60px;
  margin-top: var(--header-h);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.05) 1.5px, transparent 1.5px);
  background-size: 36px 36px;
}
.page-hero .container { position: relative; z-index: 2; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  font-weight: 500;
  color: rgba(255,255,255,.55);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,.55); }
.breadcrumb a:hover { color: rgba(255,255,255,.85); }
.breadcrumb-sep { color: rgba(255,255,255,.3); }

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.page-hero .subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,.72);
  max-width: 560px;
  line-height: 1.75;
}

/* ── ABOUT PAGE ───────────────────────────────────────────────── */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text .lead {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy-700);
  line-height: 1.6;
  margin-bottom: 18px;
}
.about-text p {
  color: var(--text-light);
  font-size: .975rem;
  margin-bottom: 14px;
}

.cert-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 32px;
}

.cert-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--trans);
}
.cert-card:hover {
  border-color: var(--navy-400);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.cert-card .cert-icon {
  width: 40px;
  height: 40px;
  background: var(--navy-700);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: white;
}
.cert-card h4 {
  font-size: .875rem;
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 4px;
}
.cert-card p {
  font-size: .78rem;
  color: var(--text-light);
  margin: 0;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.vis-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--trans);
}
.vis-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.vis-card.navy { background: var(--navy-700); border-color: transparent; }
.vis-card-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--navy-700);
  line-height: 1;
  margin-bottom: 6px;
}
.vis-card.navy .vis-card-num { color: var(--white); }
.vis-card-label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.vis-card.navy .vis-card-label { color: rgba(255,255,255,.65); }

/* ── MISSION VISION PAGE ──────────────────────────────────────── */
.mv-split { display: grid; grid-template-columns: 1fr 1fr; }
.mv-left {
  background: var(--navy-800);
  color: white;
  padding: 96px 80px;
}
.mv-right {
  background: var(--white);
  padding: 96px 80px;
}
.mv-big-label {
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 14px;
}
.mv-right .mv-big-label { color: var(--navy-400); }
.mv-left h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -.025em;
  margin-bottom: 24px;
}
.mv-right h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--navy-800);
  line-height: 1.2;
  letter-spacing: -.025em;
  margin-bottom: 24px;
}
.mv-left p { color: rgba(255,255,255,.75); font-size: .975rem; margin-bottom: 14px; line-height: 1.8; }
.mv-right p { color: var(--text-light); font-size: .975rem; margin-bottom: 14px; line-height: 1.8; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.value-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--trans);
}
.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--navy-400);
}
.value-icon {
  width: 52px;
  height: 52px;
  background: var(--gray-100);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--navy-600);
  transition: var(--trans);
}
.value-card:hover .value-icon {
  background: var(--navy-600);
  color: var(--white);
}
.value-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 8px;
}
.value-card p {
  font-size: .875rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ── İŞTİRAKLER TABS PAGE ────────────────────────────────────── */
.subs-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.subs-sidebar {
  background: var(--gray-50);
  border-right: 1px solid var(--border);
}

.subs-tab {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: var(--trans);
  position: relative;
}
.subs-tab:last-child { border-bottom: none; }
.subs-tab:hover { background: var(--gray-100); }
.subs-tab.active {
  background: var(--navy-700);
}
.subs-tab.active::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--navy-400);
}

.subs-tab-logo {
  width: 56px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  padding: 4px;
}
.subs-tab.active .subs-tab-logo {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.2);
}
.subs-tab-logo img { max-height: 32px; max-width: 48px; object-fit: contain; }

.subs-tab-info { flex: 1; min-width: 0; }
.subs-tab-name {
  font-size: .9rem;
  font-weight: 600;
  color: var(--navy-800);
  display: block;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.subs-tab.active .subs-tab-name { color: var(--white); }
.subs-tab-type {
  font-size: .72rem;
  color: var(--gray-400);
  display: block;
}
.subs-tab.active .subs-tab-type { color: rgba(255,255,255,.6); }

.subs-tab-arrow {
  color: var(--gray-400);
  flex-shrink: 0;
  transition: var(--trans);
}
.subs-tab.active .subs-tab-arrow { color: rgba(255,255,255,.6); }
.subs-tab:hover .subs-tab-arrow { transform: translateX(3px); }

.subs-detail {
  padding: 56px 60px;
  display: none;
  flex-direction: column;
}
.subs-detail.active { display: flex; }

.subs-detail-header {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.subs-detail-logo {
  height: 64px;
  display: flex;
  align-items: center;
  padding: 10px 16px;
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
}
.subs-detail-logo.dark-logo {
  background: #0f1e50;
  border-color: transparent;
}
.subs-detail-logo img { max-height: 44px; max-width: 140px; object-fit: contain; }
.subs-detail-logo.dark-logo img { filter: brightness(0) invert(1); }

.subs-detail-meta { flex: 1; }
.subs-detail-meta h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy-800);
  margin-bottom: 6px;
}
.subs-detail-meta .location {
  font-size: .82rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.subs-detail p {
  font-size: .975rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 14px;
}

.subs-detail-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 20px 0 28px;
}
.subs-detail-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--gray-800);
}
.subs-detail-features li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  background: var(--navy-700);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 10px;
  background-repeat: no-repeat;
  background-position: center;
}

.subs-detail-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-visit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  font-weight: 700;
  color: var(--white);
  background: var(--navy-600);
  padding: 11px 24px;
  border-radius: var(--radius);
  transition: var(--trans);
}
.btn-visit:hover {
  background: var(--navy-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--text-light);
  background: var(--gray-50);
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: 999px;
}
.contact-chip a { color: var(--text-light); }
.contact-chip:hover { border-color: var(--navy-400); }

/* ── İLETİŞİM PAGE ────────────────────────────────────────────── */
.contact-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--trans);
  display: flex;
  flex-direction: column;
}
.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--navy-400);
}

.cc-logo {
  height: 48px;
  display: flex;
  align-items: center;
  margin-bottom: 18px;
}
.cc-logo img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  object-position: left;
}
.cc-logo.dark-l {
  background: #0f1e50;
  border-radius: 8px;
  padding: 6px 12px;
}
.cc-logo.dark-l img { filter: brightness(0) invert(1); }
.cc-logo.navy-l {
  background: var(--navy-700);
  border-radius: 8px;
  padding: 6px 12px;
}
.cc-logo.navy-l img { filter: brightness(0) invert(1); }

.contact-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.cc-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.cc-info a,
.cc-info span {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .83rem;
  color: var(--text-light);
  word-break: break-word;
  line-height: 1.4;
}
.cc-info svg { color: var(--navy-500); flex-shrink: 0; margin-top: 1px; }
.cc-info a:hover { color: var(--navy-600); }

/* ── BİZE ULAŞIN PAGE ────────────────────────────────────────── */
.contact-form-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
}

.form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: .825rem;
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: 7px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: inherit;
  font-size: .9rem;
  color: var(--text);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 11px 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--navy-400);
  box-shadow: 0 0 0 3px rgba(27,79,216,.1);
  background: var(--white);
}

.btn-submit {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: .95rem;
  font-weight: 700;
  color: var(--white);
  background: var(--navy-600);
  border: none;
  border-radius: var(--radius);
  padding: 14px 28px;
  cursor: pointer;
  transition: var(--trans);
  letter-spacing: .01em;
}
.btn-submit:hover {
  background: var(--navy-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.form-success {
  display: none;
  background: #dcfce7;
  border: 1px solid #16a34a;
  color: #15803d;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-weight: 500;
  font-size: .9rem;
}

.form-error {
  display: none;
  background: #fee2e2;
  border: 1px solid #dc2626;
  color: #dc2626;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-weight: 500;
  font-size: .9rem;
}

.contact-sidebar-card {
  background: var(--navy-800);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  color: var(--white);
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.contact-sidebar-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.sidebar-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}
.sidebar-contact-item svg { color: rgba(255,255,255,.6); flex-shrink: 0; margin-top: 2px; }
.sidebar-contact-item span, .sidebar-contact-item a {
  font-size: .875rem;
  color: rgba(255,255,255,.75);
  line-height: 1.5;
}
.sidebar-contact-item a:hover { color: var(--white); }
.sidebar-contact-item strong {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 2px;
}

/* ── FOOTER ───────────────────────────────────────────────────── */
#site-footer {
  background: var(--navy-900);
  color: rgba(255,255,255,.65);
}
.footer-inner { max-width: 1240px; margin: 0 auto; padding: 0 28px; }

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-logo {
  height: 34px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: .85;
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: .875rem;
  color: rgba(255,255,255,.55);
  line-height: 1.7;
  max-width: 280px;
}

.footer-flags {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  font-size: .8rem;
  color: rgba(255,255,255,.4);
}

.footer-col h4 {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.85);
  margin-bottom: 18px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  font-size: .875rem;
  color: rgba(255,255,255,.5);
}
.footer-col ul a:hover { color: var(--white); }

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  color: rgba(255,255,255,.5);
}
.footer-contact li svg { color: rgba(255,255,255,.35); flex-shrink: 0; }
.footer-contact a { color: rgba(255,255,255,.5); }
.footer-contact a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p { font-size: .8rem; color: rgba(255,255,255,.35); }
.footer-legal a { color: rgba(255,255,255,.35); }
.footer-legal a:hover { color: rgba(255,255,255,.6); }

/* ── GENERIC BUTTONS ──────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  font-weight: 700;
  color: var(--white);
  background: var(--navy-600);
  padding: 12px 26px;
  border-radius: var(--radius);
  transition: var(--trans);
}
.btn-primary:hover {
  background: var(--navy-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--navy-600);
  background: var(--white);
  border: 1.5px solid var(--navy-300);
  padding: 11px 24px;
  border-radius: var(--radius);
  transition: var(--trans);
}
.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--navy-600);
  transform: translateY(-1px);
}

/* ── SCROLL ANIMATIONS ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .subs-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .split-navy, .split-white { padding: 72px 48px; }
  .mv-left, .mv-right { padding: 72px 48px; }
}

@media (max-width: 900px) {
  .split, .mv-split { grid-template-columns: 1fr; }
  .split-navy { order: -1; }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.08); }
  .subs-layout { grid-template-columns: 1fr; }
  .subs-sidebar { display: flex; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .subs-tab { border-bottom: none; border-right: 1px solid var(--border); flex-shrink: 0; }
  .subs-tab::after { display: none; }
  .contact-form-layout { grid-template-columns: 1fr; }
  .about-content { grid-template-columns: 1fr; gap: 40px; }
  .values-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .header-logo .logo-desktop { display: none; }
  .header-logo .logo-mobile { display: block; }
  .section { padding: 64px 0; }

  #main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--gray-200);
    flex-direction: column;
    padding: 10px 16px 16px;
    box-shadow: var(--shadow-md);
    gap: 2px;
  }
  #main-nav.open { display: flex; }
  .nav-link { padding: 12px 16px; font-size: 1rem; }
  .nav-cta { margin-left: 0; margin-top: 6px; text-align: center; justify-content: center; }
  .hamburger { display: flex; }
  .header-container { position: relative; }

  .hero-slide-inner { max-width: 100%; }
  .hero-slide-inner h1 { font-size: 2.2rem; }

  .subs-grid { grid-template-columns: 1fr; }
  .contact-cards-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 32px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 6px; }
  .form-card { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .split-navy, .split-white { padding: 60px 28px; }
  .mv-left, .mv-right { padding: 60px 28px; }
  .subs-detail { padding: 32px 24px; }
  .contact-form-layout { gap: 28px; }
  .why-grid { grid-template-columns: 1fr; gap: 1px; }
  .values-grid { grid-template-columns: 1fr; }
  .about-visual { grid-template-columns: 1fr 1fr; }
  .cert-cards { grid-template-columns: 1fr; }
  .subs-detail-features { grid-template-columns: 1fr; }
  .subs-detail-header { flex-direction: column; gap: 16px; }
}

@media (max-width: 480px) {
  .hero { min-height: 600px; }
  .stats-bar-inner { grid-template-columns: 1fr 1fr; }
  .logo-band-inner { gap: 24px; }
}

/* ── SITE INTRO (PRELOADER) ────────────────────────────────────── */
html:not(.intro-skip) body {
  overflow: hidden !important;
}

/* Skip style to prevent flash / layout shifts for returned visits */
html.intro-skip #site-intro {
  display: none !important;
}

#site-intro {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--navy-900);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  opacity: 1;
  visibility: visible;
  transition: opacity 1.2s cubic-bezier(0.25, 1, 0.5, 1), visibility 1.2s;
}

#site-intro.fade-out {
  opacity: 0;
  visibility: hidden;
}

.intro-content {
  position: relative;
  width: 90%;
  max-width: 800px;
  height: 120px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 1.2s cubic-bezier(0.25, 1, 0.5, 1), opacity 1.2s ease-out;
}

#site-intro.fade-out .intro-content {
  transform: scale(0.95);
  opacity: 0;
}



.intro-slogan {
  position: absolute;
  font-size: clamp(1.4rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--white);
  text-align: center;
  line-height: 1.4;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
}

.intro-slogan.show {
  opacity: 1;
  transform: translateY(0);
}

.intro-slogan.hide {
  opacity: 0;
  transform: translateY(-25px);
}

.intro-logo {
  position: absolute;
  max-width: 260px;
  height: auto;
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s cubic-bezier(0.34, 1.56, 0.64, 1), transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
  filter: brightness(0) invert(1); /* Invert dark logo for premium dark-mode feeling */
}

.intro-logo.show {
  opacity: 1;
  transform: scale(1);
}

.intro-progress-bar-container {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.intro-progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--navy-400), #60a5fa);
  transition: width 3.2s cubic-bezier(0.1, 0.8, 0.25, 1);
}