/* =====================================================
   SAMSUN ÜNİVERSİTESİ — YAZILIM MÜHENDİSLİĞİ
   Global Design System — style.css
   ===================================================== */

/* ─── Google Fonts ─────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ─── CSS Custom Properties (Design Tokens) ─────────── */
:root {
  /* Primary palette — Modern Kırmızı/Kızıl */
  --primary:        #B91C1C;
  --primary-dark:   #7F1D1D;
  --primary-light:  #EF4444;
  --primary-ultra:  #FEE2E2;

  /* Accent — Turkuaz/Teal */
  --accent:         #0D9488;
  --accent-dark:    #0F766E;
  --accent-light:   #5EEAD4;
  --accent-ultra:   #CCFBF1;

  /* Neutrals */
  --bg:             #FAF9F7;
  --bg-card:        #FFFFFF;
  --bg-section:     #F5F3EF;
  --bg-dark:        #1A1A2E;
  --bg-dark2:       #16213E;

  --text-primary:   #111827;
  --text-secondary: #4B5563;
  --text-muted:     #9CA3AF;
  --text-white:     #FFFFFF;

  --border:         #E5E7EB;
  --border-light:   #F3F4F6;

  /* Typography */
  --font-body:      'Inter', system-ui, sans-serif;
  --font-display:   'Outfit', 'Inter', system-ui, sans-serif;

  --text-xs:   0.75rem;    /* 12px */
  --text-sm:   0.875rem;   /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg:   1.125rem;   /* 18px */
  --text-xl:   1.25rem;    /* 20px */
  --text-2xl:  1.5rem;     /* 24px */
  --text-3xl:  1.875rem;   /* 30px */
  --text-4xl:  2.25rem;    /* 36px */
  --text-5xl:  3rem;       /* 48px */
  --text-6xl:  3.75rem;    /* 60px */
  --text-7xl:  4.5rem;     /* 72px */

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.75rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.10), 0 4px 16px rgba(0,0,0,.06);
  --shadow-xl:  0 20px 60px rgba(0,0,0,.12), 0 8px 24px rgba(0,0,0,.08);
  --shadow-primary: 0 8px 30px rgba(185,28,28,.25);
  --shadow-accent:  0 8px 30px rgba(13,148,136,.25);

  /* Transitions */
  --transition-fast:   all .15s cubic-bezier(.4,0,.2,1);
  --transition-base:   all .25s cubic-bezier(.4,0,.2,1);
  --transition-slow:   all .4s  cubic-bezier(.4,0,.2,1);

  /* Nav height */
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img, video, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

button, input, select, textarea {
  font: inherit;
  border: none;
  background: none;
  outline: none;
}

/* ─── Top Bar ─────────────────────────────────────────── */
.top-bar {
  background: var(--bg-dark);
  color: var(--text-muted);
  font-size: var(--text-xs);
  padding: var(--space-2) 0;
  letter-spacing: 0.02em;
}

.top-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.top-bar-links a {
  color: var(--text-muted);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.top-bar-links a:hover { color: var(--text-white); }

.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-muted);
}

.top-bar-right span { opacity: .5; }

/* ─── Header / Nav ────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  transition: var(--transition-base);
}

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

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
  flex-shrink: 0;
}

.nav-logo-icon svg {
  width: 24px;
  height: 24px;
  fill: white;
}

.nav-logo-text { line-height: 1.2; }

.nav-logo-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-logo-sub {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 500;
}

/* Nav links */
nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-1);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-ultra);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-ultra);
  font-weight: 600;
}

.nav-cta {
  background: var(--primary);
  color: var(--text-white) !important;
  padding: var(--space-2) var(--space-5) !important;
  border-radius: var(--radius-full) !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-base) !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 12px 36px rgba(185,28,28,.35) !important;
  color: white !important;
}

/* ─── Page Hero ───────────────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark2) 60%, #0D1B2A 100%);
  color: var(--text-white);
  padding: var(--space-20) 0 var(--space-16);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(185,28,28,.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(13,148,136,.10) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(185,28,28,.4), transparent);
}

.page-hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: rgba(255,255,255,.5);
  margin-bottom: var(--space-5);
}

.breadcrumb a {
  color: rgba(255,255,255,.5);
  transition: var(--transition-fast);
}

.breadcrumb a:hover { color: var(--accent-light); }

.breadcrumb-sep { opacity: .4; font-size: 10px; }

.breadcrumb-current { color: rgba(255,255,255,.85); }

.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(185,28,28,.2);
  border: 1px solid rgba(185,28,28,.35);
  color: #FCA5A5;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-5);
}

.page-hero h1 span {
  background: linear-gradient(135deg, var(--primary-light), #FBBF24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero-desc {
  font-size: var(--text-lg);
  color: rgba(255,255,255,.7);
  max-width: 640px;
  line-height: 1.7;
}

/* ─── Section Wrapper ─────────────────────────────────── */
.section {
  padding: var(--space-24) 0;
}

.section-alt {
  background: var(--bg-section);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* ─── Section Header ──────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.section-label::before, .section-label::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--primary);
  opacity: .5;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ─── Cards ───────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-4px);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 22px;
  flex-shrink: 0;
}

.card-icon-primary {
  background: var(--primary-ultra);
  color: var(--primary);
}

.card-icon-accent {
  background: var(--accent-ultra);
  color: var(--accent);
}

.card-icon-dark {
  background: var(--bg-dark);
  color: white;
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

.card-text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─── Grid Layouts ────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(185,28,28,.35);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-secondary:hover {
  background: var(--primary-ultra);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: white;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(13,148,136,.35);
}

.btn-white {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background: var(--primary-ultra);
  transform: translateY(-2px);
}

.btn-lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

/* ─── Badges / Tags ───────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.badge-primary  { background: var(--primary-ultra); color: var(--primary); }
.badge-accent   { background: var(--accent-ultra);  color: var(--accent);  }
.badge-dark     { background: var(--bg-dark);       color: white;          }
.badge-neutral  { background: var(--bg-section);    color: var(--text-secondary); }

/* ─── Stat Box ────────────────────────────────────────── */
.stat-box {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* ─── Divider ─────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: var(--space-12) 0;
}

/* ─── Info Strip ──────────────────────────────────────── */
.info-strip {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}

.info-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 100% at 90% 50%, rgba(13,148,136,.2) 0%, transparent 60%);
}

.info-strip .container { position: relative; z-index: 1; }

/* ─── Announcement Card ───────────────────────────────── */
.announce-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  transition: var(--transition-base);
}

.announce-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  transform: translateX(4px);
}

.announce-date {
  flex-shrink: 0;
  width: 52px;
  text-align: center;
  background: var(--primary-ultra);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
}

.announce-date-day {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.announce-date-month {
  font-size: var(--text-xs);
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.announce-body h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}

.announce-body p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.announce-body .announce-tag {
  margin-top: var(--space-3);
}

/* ─── Person Card ─────────────────────────────────────── */
.person-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
  text-align: center;
}

.person-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.person-avatar {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  color: rgba(255,255,255,.15);
  position: relative;
  overflow: hidden;
}

.person-avatar-initials {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: white;
  box-shadow: var(--shadow-primary);
}

.person-info {
  padding: var(--space-6);
}

.person-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.person-title {
  font-size: var(--text-sm);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.person-email {
  font-size: var(--text-xs);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
}

/* ─── Table ───────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
}

thead {
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark2));
  color: white;
}

thead th {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

tbody tr {
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition-fast);
}

tbody tr:last-child { border-bottom: none; }

tbody tr:hover {
  background: var(--bg-section);
}

tbody td {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  vertical-align: middle;
}

tbody td strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ─── Form ────────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--bg-card);
  transition: var(--transition-fast);
  font-family: var(--font-body);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(185,28,28,.1);
}

.form-control::placeholder { color: var(--text-muted); }

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

/* ─── Accordion ───────────────────────────────────────── */
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-3);
  transition: var(--transition-base);
}

.accordion-item:hover {
  border-color: var(--primary);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  background: var(--bg-card);
  cursor: pointer;
  transition: var(--transition-fast);
}

.accordion-header:hover {
  background: var(--primary-ultra);
}

.accordion-header h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.accordion-item.open .accordion-icon {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: rotate(45deg);
}

.accordion-body {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  display: none;
  background: var(--bg-card);
}

.accordion-item.open .accordion-body {
  display: block;
}

/* ─── Lab Card ────────────────────────────────────────── */
.lab-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
}

.lab-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.lab-card-header {
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark2));
  padding: var(--space-10) var(--space-8);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.lab-card-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(185,28,28,.15) 0%, transparent 70%);
}

.lab-card-icon {
  font-size: 52px;
  position: relative;
  z-index: 1;
}

.lab-card-body { padding: var(--space-8); }

.lab-card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.lab-card-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.lab-specs {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.lab-spec {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.lab-spec-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ─── Timeline ────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: var(--space-12);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-8);
}

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-12) + 12px);
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(185,28,28,.2);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  transition: var(--transition-base);
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.timeline-year {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.timeline-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── Contact Info Block ──────────────────────────────── */
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  margin-bottom: var(--space-4);
  transition: var(--transition-base);
}

.contact-info-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-ultra);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  color: var(--primary);
}

.contact-info-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.contact-info-value {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
}

/* ─── Map Placeholder ─────────────────────────────────── */
.map-placeholder {
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark2));
  border-radius: var(--radius-xl);
  height: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  color: rgba(255,255,255,.4);
  font-size: var(--text-sm);
  overflow: hidden;
  position: relative;
}

.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(rgba(185,28,28,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(185,28,28,.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.map-pin { font-size: 48px; position: relative; }

/* ─── CTA Strip ───────────────────────────────────────── */
.cta-strip {
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark2));
  padding: var(--space-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 80% at 20% 50%, rgba(185,28,28,.15) 0%, transparent 60%),
    radial-gradient(ellipse 50% 80% at 80% 50%, rgba(13,148,136,.10) 0%, transparent 60%);
}

.cta-strip .container { position: relative; z-index: 1; }

.cta-strip h2 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 800;
  color: white;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
}

.cta-strip p {
  color: rgba(255,255,255,.65);
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ─── Footer ──────────────────────────────────────────── */
footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.7);
}

.footer-top {
  padding: var(--space-20) 0 var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand {}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  text-decoration: none;
}

.footer-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo-icon svg {
  width: 22px;
  height: 22px;
  fill: white;
}

.footer-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: white;
  line-height: 1.2;
}

.footer-logo-sub {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.4);
}

.footer-brand-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: rgba(255,255,255,.5);
  max-width: 300px;
  margin-bottom: var(--space-6);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: rgba(255,255,255,.5);
  transition: var(--transition-fast);
  text-decoration: none;
}

.footer-social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.footer-col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: white;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.5);
  transition: var(--transition-fast);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-links a:hover {
  color: white;
  transform: translateX(4px);
}

.footer-links a::before {
  content: '→';
  font-size: 10px;
  opacity: 0;
  transition: var(--transition-fast);
}

.footer-links a:hover::before { opacity: 1; }

.footer-bottom {
  padding: var(--space-6) 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: var(--text-xs);
  color: rgba(255,255,255,.3);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-5);
}

.footer-bottom-links a {
  color: rgba(255,255,255,.3);
  transition: var(--transition-fast);
}

.footer-bottom-links a:hover { color: rgba(255,255,255,.7); }

/* ─── Hero (Ana Sayfa) ─────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark2) 60%, #0D1B2A 100%);
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-20) 0;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 100% at 90% 50%, rgba(185,28,28,.14) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(13,148,136,.10) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(185,28,28,.08) 0%, transparent 60%);
}

/* Grid mesh */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(185,28,28,.15);
  border: 1px solid rgba(185,28,28,.3);
  color: #FCA5A5;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary-light);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(.7); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 6vw, var(--text-7xl));
  font-weight: 800;
  color: white;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.hero h1 .hero-highlight {
  background: linear-gradient(135deg, var(--primary-light) 0%, #FBBF24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: var(--text-lg);
  color: rgba(255,255,255,.65);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: var(--space-10);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

.hero-stats {
  display: flex;
  gap: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,.08);
}

.hero-stat {}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: white;
  letter-spacing: -0.04em;
  line-height: 1;
}

.hero-stat-value span {
  color: var(--primary-light);
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.45);
  margin-top: var(--space-1);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-visual-card {
  background: rgba(255,255,255,.04);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  width: 100%;
  max-width: 400px;
}

.hero-visual-top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.hero-visual-dots {
  display: flex;
  gap: var(--space-2);
}

.hero-visual-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.hero-visual-dot:nth-child(1) { background: #EF4444; }
.hero-visual-dot:nth-child(2) { background: #F59E0B; }
.hero-visual-dot:nth-child(3) { background: #10B981; }

.hero-visual-title {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.4);
  font-family: monospace;
  font-weight: 400;
}

.hero-code {
  font-family: 'Courier New', monospace;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: rgba(255,255,255,.6);
}

.code-keyword { color: #C084FC; }
.code-class    { color: #60A5FA; }
.code-string   { color: var(--accent-light); }
.code-comment  { color: rgba(255,255,255,.3); font-style: italic; }
.code-fn       { color: #FCD34D; }
.code-num      { color: #F87171; }

/* ─── Scroll indicator ────────────────────────────────── */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,.3);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bounce-scroll 2.5s ease-in-out infinite;
}

@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, rgba(255,255,255,.3), transparent);
}

/* ─── Ribbon / Highlight Strip ────────────────────────── */
.ribbon {
  background: var(--primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  border-radius: var(--radius-sm);
}

/* ─── FAQ / Staj etc ──────────────────────────────────── */
.faq-list { display: flex; flex-direction: column; gap: var(--space-3); }

.step-card {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  transition: var(--transition-base);
}

.step-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--primary);
}

.step-number {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 900;
  color: var(--primary-ultra);
  line-height: 1;
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  -webkit-text-stroke: 2px var(--primary);
}

.step-content {}

.step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.step-text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─── Project Card ────────────────────────────────────── */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
}

.project-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.project-card-header {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  position: relative;
  overflow: hidden;
}

.project-card-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.15);
}

.project-card-body {
  padding: var(--space-6);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.project-card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.project-card-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─── Utility Classes ─────────────────────────────────── */
.text-center    { text-align: center; }
.text-left      { text-align: left; }
.text-right     { text-align: right; }
.text-primary-c { color: var(--primary); }
.text-accent-c  { color: var(--accent); }
.text-muted-c   { color: var(--text-muted); }
.text-white-c   { color: white; }
.flex           { display: flex; }
.flex-center    { display: flex; align-items: center; justify-content: center; }
.flex-between   { display: flex; align-items: center; justify-content: space-between; }
.gap-4          { gap: var(--space-4); }
.gap-6          { gap: var(--space-6); }
.gap-8          { gap: var(--space-8); }
.mb-4           { margin-bottom: var(--space-4); }
.mb-6           { margin-bottom: var(--space-6); }
.mb-8           { margin-bottom: var(--space-8); }
.mb-12          { margin-bottom: var(--space-12); }
.mt-8           { margin-top: var(--space-8); }
.mt-12          { margin-top: var(--space-12); }
.w-full         { width: 100%; }
.hidden         { display: none; }

/* ─── Responsive fixes ────────────────────────────────── */
@media (max-width: 768px) {
  .container    { padding: 0 var(--space-5); }
  .nav-inner    { padding: 0 var(--space-5); }
  .section      { padding: var(--space-16) 0; }
  .page-hero    { padding: var(--space-12) 0; }
  .footer-top   { padding: var(--space-12) 0 var(--space-8); }
  .top-bar      { display: none; }
  nav .nav-link:not(.nav-cta) { display: none; }

  .hero-stats { flex-direction: column; gap: var(--space-5); }
  .hero-actions { flex-direction: column; }

  .info-strip .container {
    text-align: center;
  }
}

@media (max-width: 640px) {
  .footer-bottom-inner { flex-direction: column; text-align: center; }
}