/* ========================================
   ATPMS Project Website - Design System
   Dark Theme | Yellow Headers | Cyan Accents
   Multi-Page Layout
   ======================================== */

@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;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Custom Properties ── */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(18, 18, 30, 0.7);
  --bg-card-hover: rgba(25, 25, 45, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);

  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b5;
  --text-muted: #6a6a80;

  --accent-yellow: #ffd700;
  --accent-yellow-dim: #c8a800;
  --accent-cyan: #00e5ff;
  --accent-cyan-dim: #00b8d4;
  --accent-blue: #448aff;
  --accent-purple: #7c4dff;
  --accent-green: #00e676;
  --accent-red: #ff5252;
  --accent-orange: #ff9100;

  --gradient-hero: linear-gradient(135deg, #ffd700 0%, #00e5ff 50%, #7c4dff 100%);
  --gradient-card: linear-gradient(135deg, rgba(255,215,0,0.05) 0%, rgba(0,229,255,0.05) 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(0,229,255,0.15) 0%, transparent 70%);

  --border-subtle: rgba(255,255,255,0.06);
  --border-glow: rgba(0,229,255,0.3);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(0,229,255,0.15);

  --font-primary: 'Outfit', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-secondary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(255,215,0,0.3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-yellow);
}

/* ── Canvas / Particles Background ── */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(10,10,15,0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-primary);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--accent-yellow);
  letter-spacing: -0.5px;
}

.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-hero);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-links a {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-yellow);
  background: rgba(255,215,0,0.08);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent-yellow);
  border-radius: 1px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Page Header (for sub-pages) ── */
.page-header {
  position: relative;
  z-index: 1;
  min-height: 55vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 2rem 60px;
  overflow: hidden;
}

.page-header-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.page-header .hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.page-header .hero-description {
  animation: fadeInUp 0.8s ease 0.4s both;
}

.page-header .section-badge {
  animation: fadeInDown 0.8s ease both;
}

/* ── Section Base ── */
section {
  position: relative;
  z-index: 1;
  padding: 100px 2rem;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255,215,0,0.1);
  border: 1px solid rgba(255,215,0,0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-yellow);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--accent-yellow);
  margin-bottom: 0.5rem;
  position: relative;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 3rem;
}

/* ── Hero Section ── */
#home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.hero-glow-1 {
  top: 10%;
  left: 10%;
  background: var(--accent-yellow);
}

.hero-glow-2 {
  bottom: 10%;
  right: 10%;
  background: var(--accent-cyan);
}

.hero-glow-3 {
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-purple);
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,215,0,0.08);
  border: 1px solid rgba(255,215,0,0.15);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-yellow);
  margin-bottom: 2rem;
  animation: fadeInDown 0.8s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title .text-gradient {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-yellow);
  color: #0a0a0f;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,215,0,0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0,229,255,0.05);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 4rem;
  animation: fadeInUp 0.8s ease 0.8s both;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-primary);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Quick Link Cards (Home Page) ── */
.quick-link-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition-smooth);
  text-decoration: none;
  color: inherit;
}

.quick-link-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.quick-link-card .quick-link-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 1.2rem;
  border: 1px solid rgba(255,215,0,0.15);
}

.quick-link-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-yellow);
  margin-bottom: 0.5rem;
}

.quick-link-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Cards ── */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,215,0,0.3), transparent);
  opacity: 0;
  transition: var(--transition-smooth);
}

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

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

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
  background: rgba(255,215,0,0.1);
  border: 1px solid rgba(255,215,0,0.15);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.card-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Grid Layouts ── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

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

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

/* ── Domain Section ── */
#domain {
  background: var(--bg-secondary);
}

.domain-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 6px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.domain-tab {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
  background: transparent;
  font-family: var(--font-secondary);
}

.domain-tab:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.domain-tab.active {
  background: var(--accent-yellow);
  color: #0a0a0f;
  font-weight: 600;
}

.domain-content {
  display: none;
  animation: fadeIn 0.4s ease;
}

.domain-content.active {
  display: block;
}

.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.tech-item:hover {
  border-color: var(--accent-cyan);
  background: rgba(0,229,255,0.05);
}

.tech-icon {
  font-size: 1.5rem;
}

.tech-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.tech-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Milestones Section ── */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-yellow), var(--accent-cyan), var(--accent-purple));
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: 30px;
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-yellow);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 15px rgba(255,215,0,0.4);
  z-index: 2;
}

.timeline-item:nth-child(even) .timeline-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0,229,255,0.4);
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-yellow);
  margin-bottom: 0.4rem;
  font-family: var(--font-mono);
}

.timeline-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.timeline-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 0.75rem;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
}

.status-completed {
  background: rgba(0,230,118,0.1);
  color: var(--accent-green);
  border: 1px solid rgba(0,230,118,0.2);
}

.status-upcoming {
  background: rgba(255,145,0,0.1);
  color: var(--accent-orange);
  border: 1px solid rgba(255,145,0,0.2);
}

/* ── Documents Section ── */
#documents {
  background: var(--bg-secondary);
}

.doc-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition-smooth);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.doc-card:hover {
  transform: translateX(8px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow);
}

.doc-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.doc-icon.pdf { background: rgba(255,82,82,0.15); }
.doc-icon.doc { background: rgba(68,138,255,0.15); }
.doc-icon.ppt { background: rgba(255,145,0,0.15); }
.doc-icon.xls { background: rgba(0,230,118,0.15); }

.doc-info { flex: 1; }

.doc-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
}

.doc-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.doc-download {
  padding: 8px 16px;
  background: rgba(255,215,0,0.1);
  border: 1px solid rgba(255,215,0,0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-yellow);
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.doc-card:hover .doc-download {
  background: var(--accent-yellow);
  color: #0a0a0f;
}

/* ── Presentations Section ── */
.presentation-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.presentation-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: var(--border-glow);
}

.presentation-preview {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.presentation-preview.p1 { background: linear-gradient(135deg, rgba(255,215,0,0.15), rgba(0,229,255,0.1)); }
.presentation-preview.p2 { background: linear-gradient(135deg, rgba(0,229,255,0.15), rgba(124,77,255,0.1)); }
.presentation-preview.p3 { background: linear-gradient(135deg, rgba(124,77,255,0.15), rgba(255,82,82,0.1)); }
.presentation-preview.p4 { background: linear-gradient(135deg, rgba(0,230,118,0.15), rgba(255,215,0,0.1)); }

.presentation-info {
  padding: 1.5rem;
}

.presentation-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.presentation-date {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.presentation-download-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 0.75rem;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(255,215,0,0.1);
  color: var(--accent-yellow);
  border: 1px solid rgba(255,215,0,0.2);
}

/* ── About Us Section ── */
#about {
  background: var(--bg-secondary);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.member-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.member-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-hero);
  opacity: 0;
  transition: var(--transition-smooth);
}

.member-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

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

.member-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  font-weight: 800;
  color: #0a0a0f;
  position: relative;
}

.member-avatar.m1 { background: linear-gradient(135deg, #ffd700, #ffaa00); }
.member-avatar.m2 { background: linear-gradient(135deg, #00e5ff, #0091ea); }
.member-avatar.m3 { background: linear-gradient(135deg, #7c4dff, #536dfe); }
.member-avatar.m4 { background: linear-gradient(135deg, #00e676, #00c853); }

.member-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.member-id {
  font-size: 0.82rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  margin-bottom: 0.8rem;
}

.member-role {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
  min-height: 70px;
}

.member-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.member-tag {
  padding: 4px 10px;
  background: rgba(255,215,0,0.08);
  border: 1px solid rgba(255,215,0,0.12);
  border-radius: 50px;
  font-size: 0.72rem;
  color: var(--accent-yellow);
  font-weight: 500;
}

.supervisor-card {
  background: var(--gradient-card);
  border: 1px solid rgba(255,215,0,0.15);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  transition: var(--transition-smooth);
}

.supervisor-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.supervisor-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: rgba(255,215,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.supervisor-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-yellow);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.supervisor-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-yellow);
}

.supervisor-role {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ── Contact Section ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 14px 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-secondary);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

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

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.contact-info-card:hover {
  border-color: var(--accent-cyan);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: rgba(0,229,255,0.1);
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-value {
  font-weight: 600;
  font-size: 0.95rem;
}

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 1;
  padding: 3rem 2rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo {
  font-family: var(--font-primary);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-yellow);
  margin-bottom: 0.5rem;
}

.footer-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-yellow);
}

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(255,215,0,0.3); }
  50% { box-shadow: 0 0 20px rgba(255,215,0,0.5); }
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

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

@media (max-width: 768px) {
  section { padding: 70px 1.2rem; }

  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10,10,15,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 2rem 2rem;
    gap: 0.5rem;
    transition: var(--transition-smooth);
    border-left: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.05rem;
    padding: 12px 0;
    width: 100%;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .hero-title { font-size: 2.2rem; }

  .form-row { grid-template-columns: 1fr; }

  .supervisor-card {
    flex-direction: column;
    text-align: center;
  }

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

  .domain-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .domain-tabs::-webkit-scrollbar { display: none; }
  .domain-tab { white-space: nowrap; flex-shrink: 0; }

  .page-header {
    min-height: 45vh;
    padding: 110px 1.2rem 40px;
  }

  .doc-card {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .navbar { padding: 0 1rem; }
  .hero-title { font-size: 1.8rem; }
  .section-title { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
}