/* ===========================
   CPiE — Center for Programming & Immersive Education
   Modern, immersive, interactive
   =========================== */

:root {
  --bg: #0d1018;
  --bg-2: #131826;
  --bg-3: #1a2035;
  --surface: #1f2740;
  --surface-2: #2a3350;
  --text: #dde3ee;
  --text-dim: #94a0b8;
  --text-mute: #6b7691;
  --accent: #4a6fa5;
  --accent-2: #7c93b8;
  --accent-3: #c5cfdf;
  --accent-4: #9bacc6;
  --accent-grad: linear-gradient(135deg, #c5cfdf 0%, #7c93b8 50%, #4a6fa5 100%);
  --accent-grad-2: linear-gradient(135deg, #dde3ee 0%, #4a6fa5 100%);
  --border: rgba(197,207,223,0.13);
  --border-bright: rgba(197,207,223,0.25);
  --shadow: 0 20px 60px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 80px rgba(74,111,165,0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

/* ===== Background canvas ===== */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  opacity: 0.6;
}

/* ===== Custom cursor ===== */
.cursor {
  position: fixed;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, background 0.2s;
  mix-blend-mode: difference;
}
.cursor-follower {
  position: fixed;
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent-2);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), width 0.2s, height 0.2s, border-color 0.2s;
}
.cursor.hover { transform: translate(-50%, -50%) scale(2); background: var(--accent-3); }
.cursor-follower.hover { width:60px; height:60px; border-color: var(--accent-3); }

@media (max-width: 900px) {
  body { cursor: auto; }
  .cursor, .cursor-follower { display: none; }
}

/* ===== Typography helpers ===== */
.gradient-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
  animation: gradShift 6s ease infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.mono { font-family: 'JetBrains Mono', monospace; color: var(--accent-2); }
.highlight {
  background: linear-gradient(180deg, transparent 60%, rgba(74,111,165,0.4) 60%);
  padding: 0 4px;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(13,16,24,0.7);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s, background 0.3s;
}
.navbar.scrolled { padding: 12px 0; background: rgba(13,16,24,0.92); }

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 22px;
  text-decoration: none;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.logo-bracket { color: var(--accent-2); font-family: 'JetBrains Mono', monospace; }
.logo-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0 4px;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  position: relative;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0;
  width: 0; height: 2px;
  background: var(--accent-grad);
  transition: width 0.3s ease;
}
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  transition: 0.3s;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 32px 80px;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(74,111,165,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,111,165,0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(74,111,165,0.1);
  border: 1px solid rgba(74,111,165,0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}
.pulse-dot {
  width: 8px; height: 8px;
  background: #4ade80;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(74,222,128,0.7);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74,222,128,0.7); }
  70% { box-shadow: 0 0 0 12px rgba(74,222,128,0); }
  100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--text-dim);
  max-width: 760px;
  margin: 0 auto 48px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--accent-grad);
  color: white;
  box-shadow: 0 10px 30px rgba(74,111,165,0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(74,111,165,0.5);
}
.btn-primary span { transition: transform 0.3s; display: inline-block; }
.btn-primary:hover span { transform: translateX(4px); }

.btn-ghost {
  background: rgba(124,147,184,0.08);
  border-color: var(--border-bright);
  color: var(--text);
}
.btn-ghost:hover {
  background: rgba(124,147,184,0.14);
  border-color: var(--accent-2);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
  padding: 32px;
  background: rgba(74,111,165,0.07);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.35);
}
.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.stat-num::after { content: '+'; }
.stat-label {
  font-size: 12px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-top: 8px;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-mute);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--text-mute), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: -10px; left: 0;
  width: 1px; height: 10px;
  background: var(--accent-2);
  animation: scrollDown 2s infinite;
}
@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(50px); opacity: 0; }
}

/* ===== Sections ===== */
.section {
  padding: 120px 32px;
  position: relative;
}
.section-dark {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-3) 50%, var(--bg) 100%);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 80px;
}

.section-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent-2);
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--text-dim);
  font-size: 17px;
  line-height: 1.7;
}

/* ===== VISION CARDS ===== */
.vision-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.vision-card {
  position: relative;
  padding: 36px 28px;
  background: linear-gradient(135deg, rgba(74,111,165,0.12), rgba(124,147,184,0.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.vision-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(74,111,165,0.15), transparent 50%);
  opacity: 0;
  transition: opacity 0.4s;
}
.vision-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: 0 20px 50px rgba(74,111,165,0.15);
}
.vision-card:hover::before { opacity: 1; }
.vc-icon {
  font-size: 36px;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 20px rgba(74,111,165,0.3));
}
.vision-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 600;
}
.vision-card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.6; }

.quote-block {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 60px;
  background: linear-gradient(135deg, rgba(74,111,165,0.08), rgba(124,147,184,0.04));
  border: 1px solid rgba(74,111,165,0.2);
  border-radius: var(--radius-lg);
  text-align: center;
}
.quote-mark {
  position: absolute;
  top: -20px; left: 30px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 100px;
  line-height: 1;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.quote-block p { font-size: 17px; line-height: 1.7; color: var(--text); }

/* ===== RESEARCH ===== */
.research-showcase {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.research-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 28px rgba(0,0,0,0.35);
}
.research-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.rc-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.rc-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  filter: brightness(0.85);
}
.research-card:hover .rc-image img {
  transform: scale(1.06);
  filter: brightness(1);
}
.rc-badge {
  position: absolute;
  top: 16px; left: 16px;
  padding: 6px 14px;
  background: var(--accent-grad);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.rc-body { padding: 28px; }
.rc-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent-2);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.research-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.3;
}
.research-card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.7; }
.rc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.rc-meta span {
  font-size: 12px;
  color: var(--text-dim);
  padding: 4px 12px;
  background: rgba(124,147,184,0.10);
  border: 1px solid var(--border);
  border-radius: 100px;
}

.research-featured {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
}
.research-featured .rc-image { aspect-ratio: auto; }
.research-featured .rc-body { padding: 48px; align-self: center; }
.research-featured h3 { font-size: 28px; }
.research-featured p { font-size: 15.5px; }

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

/* ===== SOCIETIES ===== */
.societies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.society-card {
  position: relative;
  height: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: none;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.society-card:hover { transform: translateY(-10px) scale(1.01); }

.society-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.5) saturate(1.2);
  transition: transform 0.7s ease, filter 0.5s;
}
.society-card:hover .society-bg {
  transform: scale(1.08);
  filter: brightness(0.4) saturate(1.4);
}
.society-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(13,16,24,0.95) 100%);
  z-index: 1;
}

.society-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 36px 32px;
  z-index: 2;
}
.society-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
}
.society-content > p {
  color: rgba(255,255,255,0.85);
  font-size: 14.5px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.society-logo {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}
.society-logo .dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 20px currentColor;
}
.dot-blue   { background: #4285F4; color: #4285F4; }
.dot-red    { background: #EA4335; color: #EA4335; }
.dot-yellow { background: #FBBC04; color: #FBBC04; }
.dot-green  { background: #34A853; color: #34A853; }

.society-emoji {
  font-size: 32px;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 30px rgba(255,255,255,0.4));
}

.society-flag {
  padding: 14px 18px;
  background: rgba(74,111,165,0.15);
  border: 1px solid rgba(74,111,165,0.4);
  border-radius: 12px;
  backdrop-filter: blur(20px);
}
.society-flag strong { display: block; font-size: 14px; margin-bottom: 4px; color: white; }
.society-flag span { font-size: 12.5px; color: rgba(255,255,255,0.75); }
.society-flag.flag-gold {
  background: linear-gradient(135deg, rgba(155,172,198,0.15), rgba(197,207,223,0.1));
  border-color: rgba(155,172,198,0.5);
  box-shadow: 0 0 30px rgba(155,172,198,0.2);
}

/* ===== CODEFORGE ===== */
.codeforge-showcase {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

.cf-window {
  background: #0a0a14;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(74,111,165,0.2);
}
.cf-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #131322;
  border-bottom: 1px solid var(--border);
}
.cf-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.cf-dot.red { background: #ff5f57; }
.cf-dot.yellow { background: #febc2e; }
.cf-dot.green { background: #28c840; }
.cf-title {
  margin-left: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-mute);
}

.cf-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  grid-template-rows: auto auto;
  min-height: 380px;
}
.cf-sidebar {
  background: #0d0d1a;
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  grid-row: span 2;
}
.cf-file {
  padding: 8px 10px;
  color: var(--text-mute);
  border-radius: 6px;
  margin-bottom: 4px;
  cursor: none;
  transition: all 0.2s;
}
.cf-file:hover { background: rgba(124,147,184,0.10); color: var(--text-dim); }
.cf-file.active { background: rgba(74,111,165,0.15); color: var(--accent-2); }

.cf-editor {
  padding: 20px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.7;
  background: #0a0a14;
  overflow-x: auto;
}
.cf-editor pre { margin: 0; }
.cf-editor code { color: var(--text-dim); }
.cf-editor .kw  { color: #8ab4dc; }
.cf-editor .str { color: #c5cfdf; }
.cf-editor .cmt { color: #6b7691; font-style: italic; }
.cf-editor .cls { color: #7c93b8; }
.cf-editor .num { color: #9bacc6; }

.cf-tests {
  border-top: 1px solid var(--border);
  background: #0d0d1a;
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  grid-column: 2;
}
.cf-test { color: var(--text-mute); }
.cf-test.pass { color: #4ade80; }
.cf-test.running { color: #fbbf24; animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: 0.5; } }

.cf-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.cf-feature {
  padding: 28px;
  background: rgba(74,111,165,0.08);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  transition: all 0.3s;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}
.cf-feature:hover {
  border-color: var(--accent-2);
  background: rgba(124,147,184,0.12);
}
.cff-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 12px;
}
.cf-feature h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  margin-bottom: 8px;
  font-weight: 600;
}
.cf-feature p { color: var(--text-dim); font-size: 14px; line-height: 1.6; }

/* ===== EVENTS ===== */
.events-marquee {
  margin: 0 -32px 60px;
  overflow: hidden;
  padding: 24px 0;
  background: linear-gradient(90deg, rgba(74,111,165,0.05), rgba(124,147,184,0.05));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.marquee-track {
  display: inline-flex;
  gap: 36px;
  animation: marquee 40s linear infinite;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}
.marquee-track span { display: inline-block; }
.marquee-track span:nth-child(even) { color: var(--accent-2); }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.event-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 28px rgba(0,0,0,0.35);
}
.event-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
}
.event-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.event-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
  filter: brightness(0.9) saturate(1.1);
}
.event-card:hover .event-img img { transform: scale(1.08); }
.event-body { padding: 28px; }
.event-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent-2);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.event-tag.gold { color: #9bacc6; }
.event-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}
.event-card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.7; }

/* ===== TEAM ===== */
.team-lead {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 56px;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto 80px;
  padding: 48px;
  background: linear-gradient(135deg, rgba(74,111,165,0.14), rgba(124,147,184,0.06));
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  box-shadow: 0 14px 40px rgba(0,0,0,0.35);
}
.lead-avatar {
  position: relative;
  width: 220px; height: 220px;
}
.avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent-grad);
  padding: 4px;
  animation: spin 12s linear infinite;
}
.avatar-ring::after {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--bg-2);
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar-initials {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 70px;
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.avatar-photo {
  position: absolute;
  inset: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  border-radius: 50%;
  object-fit: cover;
  z-index: 2;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.lead-avatar:hover .avatar-photo {
  transform: scale(1.04);
}
.lead-info h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 6px;
}
.lead-role { color: var(--accent-2); font-size: 14px; margin-bottom: 18px; font-family: 'JetBrains Mono', monospace; }
.lead-bio { color: var(--text-dim); font-size: 15px; line-height: 1.7; margin-bottom: 24px; }

.lead-affiliations {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.aff {
  padding: 6px 14px;
  background: rgba(124,147,184,0.10);
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  font-size: 12px;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  transition: all 0.2s;
}
.aff:hover {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(74,111,165,0.1);
  transform: translateY(-2px);
}

.team-students { text-align: center; }
.ts-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 28px;
}
.student-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.student-chip {
  padding: 10px 22px;
  background: linear-gradient(135deg, rgba(74,111,165,0.16), rgba(124,147,184,0.08));
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
  cursor: none;
}
.student-chip:hover {
  background: var(--accent-grad);
  color: white;
  transform: translateY(-3px) scale(1.05);
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(74,111,165,0.4);
}

/* ===== TEAM MEMBERS ===== */
.team-members {
  margin-top: 80px;
  text-align: center;
}
.team-members .ts-title { margin-bottom: 40px; }

.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.member-card {
  padding: 32px 22px 26px;
  background: linear-gradient(135deg, rgba(74,111,165,0.12), rgba(124,147,184,0.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  cursor: none;
}
.member-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 18px 40px rgba(74,111,165,0.28);
}

.member-avatar {
  position: relative;
  width: 110px; height: 110px;
  margin: 0 auto 20px;
}
.member-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent-grad);
  padding: 3px;
  animation: spin 14s linear infinite;
}
.member-ring::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--bg-2);
}
.member-initials {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 1px;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  z-index: 1;
}
.member-photo {
  position: absolute;
  inset: 6px;
  width: calc(100% - 12px);
  height: calc(100% - 12px);
  border-radius: 50%;
  object-fit: cover;
  z-index: 2;
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.member-card:hover .member-photo { transform: scale(1.05); }

.member-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.member-dept {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}
.member-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--accent-2);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ===== FOOTER ===== */
.footer {
  padding: 100px 32px 40px;
  background: linear-gradient(180deg, var(--bg) 0%, #04040a 100%);
  border-top: 1px solid var(--border);
}
.footer-cta {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 80px;
}
.footer-cta h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-cta p {
  color: var(--text-dim);
  font-size: 17px;
  margin-bottom: 32px;
}
.footer-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-mute);
}
.fb-left { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.fb-tag { color: var(--text-mute); }
.fb-right { display: flex; gap: 12px; }

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: rgba(13,16,24,0.98);
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
  }
  .hero { padding: 100px 20px 60px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 80px 20px; }
  .research-featured { grid-template-columns: 1fr; }
  .research-featured .rc-body { padding: 32px 28px; }
  .codeforge-showcase { grid-template-columns: 1fr; }
  .team-lead { grid-template-columns: 1fr; gap: 32px; padding: 32px 24px; text-align: center; }
  .lead-avatar { margin: 0 auto; }
  .lead-affiliations { justify-content: center; }
  .cf-body { grid-template-columns: 1fr; }
  .cf-sidebar { display: none; }
  .cf-tests { grid-column: 1; }
  .events-marquee { margin: 0 -20px 40px; }
}

@media (max-width: 540px) {
  .hero-stats { grid-template-columns: 1fr 1fr; padding: 20px; }
  .stat-num { font-size: 1.8rem; }
  .quote-block { padding: 32px 24px; }
  .quote-mark { left: 16px; font-size: 70px; }
  .society-card { height: 420px; }
  .society-content { padding: 28px 24px; }
}