/* =========================================================================
   ACM UEMJ — Global Stylesheet
   Vanilla CSS3. No frameworks. Shared across index.html, event.html, team.html
   ========================================================================= */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Design Tokens ---------- */
:root{
  /* core surfaces */
  --black: #050505;
  --bg-2: #0b0d12;
  --bg-3: #10131a;
  --surface: rgba(255,255,255,0.035);
  --surface-2: rgba(255,255,255,0.065);
  --surface-3: rgba(255,255,255,0.1);
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);

  /* text */
  --white: #f3f6fa;
  --muted: #97a3b4;
  --muted-2: #626d7d;

  /* brand accents */
  --cyan: #00d4ff;
  --blue: #5b7fff;
  --purple: #9b5cff;
  --pink: #ff4fa3;
  --amber: #ffb020;
  --danger: #ff4d6d;
  --success: #21e6a1;

  /* Rajasthan heritage accents — used sparingly as a signature layer, never as the dominant palette */
  --sandstone: #d6a868;
  --terracotta: #c1653a;
  --gold: #d9a441;
  --maroon: #6e2439;
  --beige: #e9dcc3;

  /* gradients */
  --grad-aurora: linear-gradient(120deg, var(--cyan) 0%, var(--blue) 28%, var(--purple) 62%, var(--pink) 100%);
  --grad-text: linear-gradient(100deg, var(--cyan), var(--purple) 55%, var(--pink));
  --grad-card: linear-gradient(160deg, rgba(255,255,255,0.06), rgba(255,255,255,0.015));
  --grad-line: linear-gradient(90deg, transparent, var(--cyan), var(--purple), transparent);
  --grad-fusion: linear-gradient(100deg, var(--cyan), var(--gold) 50%, var(--purple));
  --grad-heritage: linear-gradient(120deg, var(--terracotta), var(--gold) 55%, var(--maroon));

  /* jaali (lattice) motif — one hairline SVG tile reused for bg texture + footer divider */
  --jaali-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64'%3E%3Cg fill='none' stroke='%23d9a441' stroke-width='1' stroke-opacity='0.6'%3E%3Crect x='8' y='8' width='48' height='48' transform='rotate(45 32 32)'/%3E%3Ccircle cx='32' cy='32' r='3'/%3E%3Cpath d='M32 2v10M32 52v10M2 32h10M52 32h10'/%3E%3C/g%3E%3C/svg%3E");

  /* fonts */
  --f-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;

  /* geometry */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 36px;
  --radius-pill: 999px;
  --max-width: 1360px;
  --nav-h: 84px;

  /* motion */
  --ease: cubic-bezier(.16,.84,.32,1);
  --ease-soft: cubic-bezier(.22,.9,.35,1);
  --dur-fast: 200ms;
  --dur-mid: 420ms;
  --dur-slow: 800ms;

  /* glow */
  --glow-cyan: 0 0 50px -6px rgba(0,229,255,.45);
  --glow-purple: 0 0 60px -8px rgba(139,92,246,.4);
  --shadow-card: 0 30px 80px -30px rgba(0,0,0,.7);
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; color-scheme: dark; }
html, body{ height:100%; }
body{
  background: var(--black);
  color: var(--white);
  font-family: var(--f-body);
  line-height:1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position:relative;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul, ol{ list-style:none; }
button, input, textarea{ font-family:inherit; color:inherit; }
button{ cursor:pointer; background:none; border:none; }
::selection{ background: var(--cyan); color:#000; }
:focus-visible{ outline: 2px solid var(--cyan); outline-offset:3px; border-radius:4px; }

/* thin scrollbar */
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background: var(--black); }
::-webkit-scrollbar-thumb{ background: linear-gradient(var(--cyan), var(--purple)); border-radius:10px; border:2px solid var(--black); }

h1,h2,h3,h4,h5{ font-family: var(--f-display); font-weight:700; letter-spacing:-0.02em; line-height:1.08; }
p{ color: var(--muted); }

.container{ max-width: var(--max-width); margin:0 auto; padding:0 clamp(20px, 5vw, 56px); position:relative; }
.text-gradient{
  background: var(--grad-text);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  background-size:200% auto;
}
.mono{ font-family: var(--f-mono); }
.sr-only{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }

/* =========================================================================
   BACKGROUND LAYERS — aurora mesh, grid, noise, floating shapes, particles
   ========================================================================= */
.bg-layer{ position:fixed; inset:0; z-index:-30; pointer-events:none; overflow:hidden; }

.bg-aurora{
  position:fixed; inset:-10%; z-index:-40; pointer-events:none; filter: blur(70px) saturate(130%);
  opacity:.55; will-change: transform;
}
.bg-aurora span{
  position:absolute; border-radius:50%; mix-blend-mode: screen; opacity:.55;
  animation: drift 26s ease-in-out infinite;
}
.bg-aurora span:nth-child(1){ width:46vw; height:46vw; top:-10%; left:-8%; background: radial-gradient(circle, var(--cyan), transparent 70%); animation-duration:24s; }
.bg-aurora span:nth-child(2){ width:40vw; height:40vw; top:10%; right:-12%; background: radial-gradient(circle, var(--purple), transparent 70%); animation-duration:32s; animation-delay:-6s; }
.bg-aurora span:nth-child(3){ width:38vw; height:38vw; bottom:-14%; left:18%; background: radial-gradient(circle, var(--pink), transparent 70%); animation-duration:28s; animation-delay:-12s; }
.bg-aurora span:nth-child(4){ width:30vw; height:30vw; bottom:6%; right:12%; background: radial-gradient(circle, var(--blue), transparent 70%); animation-duration:22s; animation-delay:-3s; }

@keyframes drift{
  0%,100%{ transform: translate(0,0) scale(1); }
  33%{ transform: translate(4%, 6%) scale(1.08); }
  66%{ transform: translate(-5%, -3%) scale(0.94); }
}

.bg-grid{
  position:fixed; inset:0; z-index:-38; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(1300px 900px at 50% 0%, #000 0%, transparent 70%);
          mask-image: radial-gradient(1300px 900px at 50% 0%, #000 0%, transparent 70%);
  opacity:.5;
}

.bg-noise{
  position:fixed; inset:0; z-index:-36; pointer-events:none; opacity:.035; mix-blend-mode:overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Jaali — hairline lattice texture, Rajasthan jaali-screen geometry read at a distance, never a foreground graphic */
.bg-jaali{
  position:fixed; inset:0; z-index:-37; pointer-events:none;
  background-image: var(--jaali-pattern);
  background-size: 64px 64px;
  opacity:.06;
  mix-blend-mode: soft-light;
  -webkit-mask-image: radial-gradient(1400px 1000px at 50% 15%, #000 0%, transparent 72%);
          mask-image: radial-gradient(1400px 1000px at 50% 15%, #000 0%, transparent 72%);
}

#particleField{ position:fixed; inset:0; z-index:-34; pointer-events:none; }
.particle{
  position:absolute; border-radius:50%; background: var(--cyan);
  box-shadow: 0 0 10px 1px currentColor;
}

.cursor-glow{
  position:fixed; width:420px; height:420px; border-radius:50%; z-index:-32; pointer-events:none;
  background: radial-gradient(circle, rgba(0,229,255,.10), transparent 65%);
  transform: translate(-50%,-50%); transition: opacity .3s ease;
  will-change: transform;
}

/* =========================================================================
   PRELOADER
   ========================================================================= */
.preloader{
  position:fixed; inset:0; z-index:9999; background: var(--black);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px;
  transition: opacity .6s var(--ease), visibility .6s var(--ease);
}
.preloader.hidden{ opacity:0; visibility:hidden; pointer-events:none; }

/* Mandala assembles from concentric rings + radiating circuit spokes, then dissolves into the hero */
.preloader-mandala{ width:168px; height:168px; margin-bottom:6px; overflow:visible; }
.mandala-ring, .mandala-ring-inner{
  fill:none; stroke-width:1.4; stroke-linecap:round;
  stroke-dasharray:540; stroke-dashoffset:540;
  animation: mandala-draw 1.1s var(--ease-soft) forwards;
}
.mandala-ring{ stroke:var(--gold); opacity:.75; }
.mandala-ring-inner{ stroke:var(--cyan); opacity:.6; stroke-dasharray:420; stroke-dashoffset:420; animation-delay:.15s; }
@keyframes mandala-draw{ to{ stroke-dashoffset:0; } }

.mandala-spoke{
  stroke:var(--gold); stroke-width:2; stroke-linecap:round; opacity:0;
  animation: spoke-in .5s var(--ease-soft) forwards;
}
@keyframes spoke-in{ from{ opacity:0; } to{ opacity:.85; } }

.mandala-core{
  fill:var(--black); stroke:url(#preloaderCoreGrad); stroke-width:2;
  animation: core-pulse 1.6s ease-in-out infinite;
  animation-delay:.9s;
}
@keyframes core-pulse{ 0%,100%{ transform:scale(1); } 50%{ transform:scale(1.18); } }

.preloader-mark{
  font-family:var(--f-display); font-size:1.5rem; font-weight:800; letter-spacing:-0.01em;
  background: var(--grad-fusion); -webkit-background-clip:text; background-clip:text; color:transparent;
  background-size:200% auto; animation: shimmer 2.4s linear infinite;
}
@keyframes shimmer{ to{ background-position: 200% center; } }
.preloader-percent{ font-family:var(--f-mono); font-size:.82rem; letter-spacing:.14em; color:var(--gold); }
.preloader-tag{ font-family:var(--f-mono); font-size:.72rem; letter-spacing:.25em; color:var(--muted); text-transform:uppercase; margin-top:4px; }

/* Exit morph — mandala scales up and dissolves just before the whole overlay fades */
.preloader.exit .preloader-mandala{ transform:scale(1.5); opacity:0; transition:transform .55s var(--ease-soft), opacity .55s var(--ease-soft); }
.preloader.exit .preloader-mark,
.preloader.exit .preloader-percent,
.preloader.exit .preloader-tag{ opacity:0; transform:translateY(-8px); transition:opacity .4s var(--ease-soft), transform .4s var(--ease-soft); }

@media (prefers-reduced-motion: reduce){
  .mandala-ring, .mandala-ring-inner{ animation:none; stroke-dashoffset:0; }
  .mandala-spoke{ animation:none; opacity:.85; }
  .mandala-core{ animation:none; }
  .preloader-mark{ animation:none; background-position:0 center; }
}

/* =========================================================================
   NAVIGATION
   ========================================================================= */
/* Scroll progress — thin fusion-gradient line tracking read progress down the page */
.scroll-progress{
  position:fixed; top:0; left:0; height:3px; width:0%; z-index:1200; pointer-events:none;
  background: var(--grad-fusion); background-size:200% auto;
  box-shadow: 0 0 12px -1px rgba(0,212,255,.6);
}

.site-nav{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  height: var(--nav-h);
  display:flex; align-items:center;
  transition: height var(--dur-mid) var(--ease), background var(--dur-mid) var(--ease), box-shadow var(--dur-mid) var(--ease), transform var(--dur-mid) var(--ease-soft);
}
.site-nav.nav-hidden{ transform: translateY(-100%); }
.site-nav .container{ display:flex; align-items:center; justify-content:space-between; width:100%; height:100%; }
.site-nav::before{
  content:''; position:absolute; inset:0; z-index:-1;
  background: rgba(5,5,5,0.42);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-mid) var(--ease), border-color var(--dur-mid) var(--ease);
}
.site-nav.scrolled{ height: 68px; }
.site-nav.scrolled::before{
  background: rgba(5,5,5,0.72);
  border-bottom-color: var(--border);
  box-shadow: 0 20px 60px -20px rgba(0,0,0,.7);
}

.nav-logo{ display:flex; align-items:center; gap:12px; font-family:var(--f-display); font-weight:700; z-index:2; }
.nav-logo img{ height:38px; width:auto; filter: drop-shadow(0 0 14px rgba(0,229,255,.35)); }
.nav-logo span{ font-size:1.05rem; letter-spacing:.02em; }
.nav-logo span em{ font-style:normal; color:var(--cyan); }

.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-links a{
  position:relative; padding:10px 18px; font-size:.92rem; font-weight:600; color: var(--muted);
  transition: color var(--dur-fast) var(--ease);
}
.nav-links a::after{
  content:''; position:absolute; left:18px; right:18px; bottom:6px; height:2px; border-radius:2px;
  background: var(--grad-aurora); transform: scaleX(0); transform-origin:left; transition: transform var(--dur-fast) var(--ease);
}
.nav-links a:hover{ color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after{ transform: scaleX(1); }
.nav-links a.active{ color: var(--white); }

.nav-cta{ display:flex; align-items:center; gap:18px; }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; width:42px; height:42px; align-items:center; justify-content:center;
  border:1px solid var(--border); border-radius:var(--radius-sm); z-index:2;
}
.nav-toggle span{ width:20px; height:2px; background:var(--white); border-radius:2px; transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease); }
.nav-toggle.active span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2){ opacity:0; }
.nav-toggle.active span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* =========================================================================
   BUTTONS
   ========================================================================= */
.btn{
  position:relative; display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:14px 30px; border-radius: var(--radius-pill); font-weight:600; font-size:.94rem;
  isolation:isolate; overflow:hidden; white-space:nowrap;
  transition: transform var(--dur-fast) var(--ease-soft), box-shadow var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
}
.btn:active{ transform: scale(.96); }
.btn-icon{ transition: transform var(--dur-fast) var(--ease-soft); }
.btn:hover .btn-icon{ transform: translateX(4px); }

.btn-primary{
  color:#04070a; background: var(--grad-aurora); background-size:200% auto; background-position:0% 50%;
  box-shadow: 0 16px 40px -14px rgba(0,229,255,.55);
}
.btn-primary:hover{ background-position:100% 50%; box-shadow: 0 20px 55px -12px rgba(139,92,246,.6); transform: translateY(-3px); }

.btn-ghost{
  color: var(--white); background: var(--surface); border:1px solid var(--border-strong);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover{ border-color: var(--cyan); box-shadow: var(--glow-cyan); transform: translateY(-3px); }

.btn-sm{ padding:10px 20px; font-size:.84rem; }

.ripple{
  position:absolute; border-radius:50%; background: rgba(255,255,255,.5); transform:scale(0);
  animation: ripple-anim .7s ease-out; pointer-events:none; z-index:5;
}
@keyframes ripple-anim{ to{ transform:scale(3); opacity:0; } }

.magnetic{ will-change: transform; }

/* =========================================================================
   SECTION SCAFFOLDING
   ========================================================================= */
.section{ position:relative; padding: clamp(70px, 10vw, 140px) 0; }
.section-tight{ padding: clamp(50px, 7vw, 90px) 0; }

.eyebrow{
  display:inline-flex; align-items:center; gap:10px; font-family:var(--f-mono); font-size:.74rem;
  letter-spacing:.28em; text-transform:uppercase; color:var(--cyan); margin-bottom:20px;
}
.eyebrow::before{ content:''; width:26px; height:1px; background: var(--cyan); }

.section-head{ max-width:760px; margin-bottom:64px; }
.section-head.wide{ max-width:100%; }
.section-title{ font-size: clamp(2.1rem, 4.8vw, 3.7rem); margin-bottom:18px; letter-spacing:-0.025em; }
.section-desc{ font-size:1.1rem; color:var(--muted); max-width:620px; line-height:1.7; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head.center .eyebrow{ justify-content:center; }
.section-head.center .eyebrow::before{ display:none; }
.section-head.center .section-desc{ margin-left:auto; margin-right:auto; }

.reveal{ opacity:0; transform: translateY(34px); transition: opacity .9s var(--ease-soft), transform .9s var(--ease-soft); }
.reveal.in{ opacity:1; transform:none; }
.reveal-scale{ opacity:0; transform: scale(.92); transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft); }
.reveal-scale.in{ opacity:1; transform:none; }
.reveal-left{ opacity:0; transform: translateX(-40px); transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft); }
.reveal-left.in{ opacity:1; transform:none; }
.reveal-right{ opacity:0; transform: translateX(40px); transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft); }
.reveal-right.in{ opacity:1; transform:none; }
[data-stagger] .reveal:nth-child(1){ transition-delay:0ms; }
[data-stagger] .reveal:nth-child(2){ transition-delay:90ms; }
[data-stagger] .reveal:nth-child(3){ transition-delay:180ms; }
[data-stagger] .reveal:nth-child(4){ transition-delay:270ms; }
[data-stagger] .reveal:nth-child(5){ transition-delay:360ms; }
[data-stagger] .reveal:nth-child(6){ transition-delay:450ms; }

/* =========================================================================
   GLASS CARD PRIMITIVE
   ========================================================================= */
.glass-card{
  position:relative; background: var(--grad-card); border:1px solid var(--border);
  border-radius: var(--radius-lg); backdrop-filter: blur(12px); overflow:hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-mid) var(--ease-soft), border-color var(--dur-mid) var(--ease-soft), box-shadow var(--dur-mid) var(--ease-soft);
}
.glass-card::before{
  content:''; position:absolute; inset:0; padding:1px; border-radius:inherit;
  background: linear-gradient(135deg, rgba(0,212,255,.4), rgba(217,164,65,.28) 48%, rgba(155,92,255,.32));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity:0; transition: opacity var(--dur-mid) var(--ease-soft); pointer-events:none;
}
.glass-card:hover{ transform: translateY(-8px); box-shadow: 0 40px 90px -30px rgba(0,212,255,.28); }
.glass-card:hover::before{ opacity:1; }
.tilt{ transform-style:preserve-3d; will-change: transform; }

/* =========================================================================
   HERO
   ========================================================================= */
.hero{
  min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding: calc(var(--nav-h) + 60px) 20px 90px; position:relative; overflow:hidden;
}
/* Warm sandstone/sunset glow, screened under the cyan orb — the two identities blending in one wash of light */
.hero-sunset{
  position:absolute; width:70vw; height:70vw; max-width:1000px; max-height:1000px; border-radius:50%;
  background: radial-gradient(circle, rgba(217,164,65,.16), rgba(193,101,58,.08) 45%, transparent 70%);
  top:42%; left:50%; transform:translate(-50%,-50%); filter:blur(60px); z-index:0; pointer-events:none;
  mix-blend-mode: screen;
}
.hero-orb{
  position:absolute; width:60vw; height:60vw; max-width:900px; max-height:900px; border-radius:50%;
  background: radial-gradient(circle, rgba(0,212,255,.16), transparent 65%);
  top:50%; left:50%; transform:translate(-50%,-50%); filter:blur(40px); z-index:0; pointer-events:none;
}

/* Jaali ring — the page's signature motif: a stepwell-arc lattice in royal gold, counter-rotated by
   an inner ring of tech cyan, standing in for "heritage geometry orbiting a circuit" behind the hero title */
.jaali-ring{
  position:absolute; top:50%; left:50%; width:960px; height:960px; max-width:94vw; max-height:94vw;
  transform:translate(-50%,-50%); border-radius:50%; pointer-events:none; z-index:0; opacity:.32;
  background: repeating-conic-gradient(var(--gold) 0deg .5deg, transparent .5deg 3.2deg);
  -webkit-mask-image: radial-gradient(circle, transparent 64.5%, #000 65%, #000 65.6%, transparent 66.1%);
          mask-image: radial-gradient(circle, transparent 64.5%, #000 65%, #000 65.6%, transparent 66.1%);
  animation: spin-ring 90s linear infinite;
  will-change: transform;
}
.jaali-ring::before{
  content:''; position:absolute; inset:60px; border-radius:50%;
  background: repeating-conic-gradient(var(--cyan) 0deg .4deg, transparent .4deg 2.6deg);
  -webkit-mask-image: radial-gradient(circle, transparent 69%, #000 69.5%, #000 70%, transparent 70.5%);
          mask-image: radial-gradient(circle, transparent 69%, #000 69.5%, #000 70%, transparent 70.5%);
  opacity:.5;
  animation: spin-ring-rev 70s linear infinite;
}
@keyframes spin-ring{ to{ transform:translate(-50%,-50%) rotate(360deg); } }
@keyframes spin-ring-rev{ to{ transform:rotate(-360deg); } }
@media (prefers-reduced-motion: reduce){ .jaali-ring, .jaali-ring::before{ animation:none; } }
.hero-shape{ position:absolute; border-radius:38% 62% 55% 45% / 45% 40% 60% 55%; filter:blur(2px); opacity:.5; z-index:0; pointer-events:none; }
.hero-shape.s1{ width:220px; height:220px; top:14%; left:8%; background: linear-gradient(135deg, rgba(0,229,255,.35), transparent); animation: float1 9s ease-in-out infinite; }
.hero-shape.s2{ width:160px; height:160px; bottom:18%; right:10%; background: linear-gradient(135deg, rgba(139,92,246,.4), transparent); animation: float2 11s ease-in-out infinite; }
.hero-shape.s3{ width:120px; height:120px; top:22%; right:16%; background: linear-gradient(135deg, rgba(255,79,163,.35), transparent); animation: float1 7.5s ease-in-out infinite reverse; }
@keyframes float1{ 0%,100%{ transform: translate(0,0) rotate(0deg);} 50%{ transform: translate(18px,-24px) rotate(12deg);} }
@keyframes float2{ 0%,100%{ transform: translate(0,0) rotate(0deg);} 50%{ transform: translate(-22px,20px) rotate(-10deg);} }

.hero-badge{
  position:relative; z-index:2; display:inline-flex; align-items:center; gap:10px; padding:8px 18px;
  border-radius: var(--radius-pill); background: var(--surface); border:1px solid var(--border-strong);
  font-family:var(--f-mono); font-size:.76rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted);
  margin-bottom:34px; backdrop-filter: blur(10px);
}
.hero-badge .dot{ width:7px; height:7px; border-radius:50%; background: var(--success); box-shadow:0 0 10px var(--success); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{ opacity:1;} 50%{ opacity:.3;} }

.hero-title{
  position:relative; z-index:2; font-size: clamp(2.9rem, 9.4vw, 8rem); line-height:.96; margin-bottom:26px; letter-spacing:-0.03em;
}
.hero-title .line{ display:block; }
.hero-cursor{ display:inline-block; width:.5ch; margin-left:6px; background: var(--cyan); animation: blink 1s step-end infinite; }
@keyframes blink{ 0%,100%{ opacity:1;} 50%{ opacity:0;} }

.hero-sub{
  position:relative; z-index:2; max-width:640px; margin:0 auto 44px; font-size:1.12rem; color:var(--muted);
}
.hero-actions{ position:relative; z-index:2; display:flex; gap:18px; flex-wrap:wrap; justify-content:center; margin-bottom:70px; }

.hero-scroll{
  position:relative; z-index:2; display:flex; flex-direction:column; align-items:center; gap:10px;
  font-family:var(--f-mono); font-size:.68rem; letter-spacing:.2em; text-transform:uppercase; color:var(--muted-2);
}
.hero-scroll .wheel{ width:24px; height:38px; border:2px solid var(--border-strong); border-radius:14px; position:relative; }
.hero-scroll .wheel::before{
  content:''; position:absolute; top:6px; left:50%; width:4px; height:8px; border-radius:2px; background:var(--cyan);
  transform:translateX(-50%); animation: scrolldot 1.6s ease-in-out infinite;
}
@keyframes scrolldot{ 0%{ opacity:1; top:6px;} 70%{ opacity:0; top:20px;} 100%{ opacity:0; top:6px;} }

/* =========================================================================
   STATS COUNTER STRIP
   ========================================================================= */
.stats-strip{ position:relative; padding: 50px 0; border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.stats-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:24px; text-align:center; }
.stat-item{
  position:relative; padding:20px 12px; border-radius:var(--radius-md);
  transition: background var(--dur-mid) var(--ease-soft), transform var(--dur-mid) var(--ease-soft);
}
.stat-item:hover{ background: var(--surface); transform:translateY(-4px); }
.stat-item + .stat-item::before{ content:''; position:absolute; left:0; top:10%; bottom:10%; width:1px; background:var(--border); }
.stat-num{
  font-family:var(--f-display); font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight:800;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color:transparent;
  display:inline-flex; align-items:baseline; gap:2px;
}
.stat-num::after{ content:''; display:block; height:2px; width:36%; margin:10px auto 0; background: var(--grad-fusion); border-radius:2px; opacity:.6; transition: width var(--dur-mid) var(--ease-soft), opacity var(--dur-mid) var(--ease-soft); }
.stat-item:hover .stat-num::after{ width:60%; opacity:1; }
.stat-label{ margin-top:8px; font-size:.9rem; color:var(--muted); letter-spacing:.02em; }

/* =========================================================================
   ABOUT — editorial asymmetric layout
   ========================================================================= */
.about-grid{ display:grid; grid-template-columns: 0.9fr 1.1fr; gap:28px; position:relative; }
/* Connecting thread — a hairline heritage-gradient line linking the three cards, standing in for
   lineage (global body → chapter → university) without forcing a literal chronological timeline */
@media (min-width:1081px){
  .about-grid::before{
    content:''; position:absolute; left:44.5%; top:6%; bottom:6%; width:1px;
    background: linear-gradient(var(--border), var(--gold) 20%, var(--cyan) 50%, var(--gold) 80%, var(--border));
    opacity:.4; z-index:0;
  }
}
.about-icon{
  width:48px; height:48px; border-radius:14px; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, rgba(0,212,255,.16), rgba(217,164,65,.14)); margin-bottom:18px; flex-shrink:0;
}
.about-icon svg{ width:22px; height:22px; color:var(--gold); }
.about-feature{
  grid-row: span 2; padding:52px 44px 44px 47px; display:flex; flex-direction:column; justify-content:flex-start; min-height:420px;
  background:
    linear-gradient(160deg, rgba(0,212,255,.12), rgba(155,92,255,.08)),
    var(--jaali-pattern);
  background-size: cover, 120px 120px;
  background-blend-mode: normal, soft-light;
}
.about-feature::after{
  content:''; position:absolute; left:0; top:14%; bottom:14%; width:3px; border-radius:2px;
  background: linear-gradient(var(--cyan), var(--gold));
}
.about-feature .tag{ font-family:var(--f-mono); font-size:.72rem; color:var(--cyan); letter-spacing:.2em; text-transform:uppercase; margin-bottom:14px; }
.about-feature h3{ font-size:1.9rem; margin-bottom:14px; }
.about-feature p{ font-size:1rem; }
.about-side{ padding:36px; }
.about-side .tag{ font-family:var(--f-mono); font-size:.7rem; color:var(--purple); letter-spacing:.18em; text-transform:uppercase; margin-bottom:12px; }
.about-side h3{ font-size:1.4rem; margin-bottom:12px; }
.about-side p{ font-size:.96rem; }
.about-list{ margin-top:18px; display:flex; flex-direction:column; gap:0; }
.about-list li{
  padding:12px 0; border-top:1px solid var(--border); font-size:.92rem; color:var(--muted);
  display:flex; gap:10px;
}
.about-list li:first-child{ border-top:none; }
.about-list li strong{ color:var(--white); font-weight:600; }
.about-list li::before{ content:'→'; color:var(--cyan); flex-shrink:0; }

/* =========================================================================
   WHY JOIN — benefit grid
   ========================================================================= */
.why-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:24px; }
.why-card{ padding:36px 32px; }
.why-icon{
  width:56px; height:56px; border-radius:16px; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, rgba(0,212,255,.18), rgba(155,92,255,.18)); margin-bottom:22px;
  transition: box-shadow var(--dur-mid) var(--ease-soft), transform var(--dur-mid) var(--ease-soft);
}
.why-icon svg{ width:26px; height:26px; color:var(--cyan); }
.why-card:hover .why-icon{ box-shadow: 0 0 0 6px rgba(217,164,65,.1), 0 0 22px -4px rgba(0,212,255,.5); transform:translateY(-2px); }
.why-card h3{ font-size:1.24rem; margin-bottom:12px; }
.why-card p{ font-size:.94rem; }

/* =========================================================================
   DOMAINS — magazine tiles
   ========================================================================= */
.domains-grid{ display:grid; grid-template-columns: repeat(6, 1fr); grid-auto-rows:150px; gap:18px; }
.domain-tile{
  position:relative; grid-column:span 2; padding:26px; display:flex; flex-direction:column; justify-content:flex-end;
  overflow:hidden;
}
.domain-tile.big{ grid-column:span 3; grid-row:span 2; }
.domain-tile .glow{
  position:absolute; inset:-40%; background: radial-gradient(circle at 30% 20%, var(--tile-color, var(--cyan)), transparent 60%);
  opacity:.16; transition: opacity var(--dur-mid) var(--ease-soft); pointer-events:none;
}
.domain-tile:hover .glow{ opacity:.32; }
.domain-tile::after{
  content:''; position:absolute; inset:0; pointer-events:none;
  background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,.12) 50%, transparent 60%);
  background-size:250% 250%; background-position:-40% -40%;
  transition: background-position .8s var(--ease-soft);
}
.domain-tile:hover::after{ background-position:40% 40%; }
.domain-tile .num{ font-family:var(--f-mono); font-size:.72rem; color:var(--muted-2); margin-bottom:auto; }
.domain-tile h4{ font-size:1.2rem; margin-bottom:6px; position:relative; z-index:1; }
.domain-tile p{ font-size:.84rem; position:relative; z-index:1; }

/* =========================================================================
   EVENTS PREVIEW (home)
   ========================================================================= */
.feature-event{ display:grid; grid-template-columns: 1fr 1fr; gap:0; overflow:hidden; }
.feature-event-media{ position:relative; min-height:380px; overflow:hidden; }
.feature-event-media img{ width:100%; height:100%; object-fit:cover; position:absolute; inset:0; transition: transform 1s var(--ease-soft); }
.feature-event:hover .feature-event-media img{ transform:scale(1.06); }
.feature-event-media::after{ content:''; position:absolute; inset:0; background: linear-gradient(90deg, transparent 60%, rgba(6,7,10,.9)); }
.feature-event-body{ padding:46px; display:flex; flex-direction:column; justify-content:center; gap:16px; }
.live-badge{
  display:inline-flex; align-items:center; gap:8px; width:fit-content; padding:7px 16px; border-radius:var(--radius-pill);
  background: rgba(255,77,109,.12); border:1px solid rgba(255,77,109,.4); color:var(--danger);
  font-family:var(--f-mono); font-size:.7rem; letter-spacing:.14em; text-transform:uppercase;
}
.live-badge .dot{ width:6px; height:6px; border-radius:50%; background:var(--danger); animation:pulse 1.4s ease-in-out infinite; }
.feature-event-body h3{ font-size:1.9rem; }
.feature-event-date{ display:flex; align-items:center; gap:10px; color:var(--cyan); font-weight:600; font-size:.94rem; }
.feature-event-date svg{ width:18px; height:18px; }
.feature-event-speaker{ display:flex; align-items:center; gap:14px; padding-top:18px; border-top:1px solid var(--border); }
.feature-event-speaker img{ width:52px; height:52px; border-radius:50%; object-fit:cover; border:2px solid var(--cyan); }
.speaker-label{ font-size:.72rem; text-transform:uppercase; letter-spacing:.12em; color:var(--muted-2); }
.speaker-name{ font-weight:700; color:var(--white); }

.event-marquee{ overflow:hidden; margin-top:48px; -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.event-track{ display:flex; gap:22px; width:max-content; animation: marquee 40s linear infinite; }
.event-track:hover{ animation-play-state:paused; }
@keyframes marquee{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }
.mini-card{ flex:0 0 340px; overflow:hidden; }
.mini-card::after{
  content:''; position:absolute; top:0; left:0; right:0; height:3px; z-index:2;
  background: var(--grad-fusion); transform:scaleX(0); transform-origin:left; transition: transform var(--dur-mid) var(--ease-soft);
}
.mini-card:hover::after{ transform:scaleX(1); }
.mini-card-img{ height:190px; overflow:hidden; position:relative; }
.mini-card-img img{ width:100%; height:100%; object-fit:cover; filter:saturate(.85); transition: transform .6s var(--ease-soft), filter .6s var(--ease-soft); }
.mini-card:hover .mini-card-img img{ transform:scale(1.08); filter:saturate(1.1); }
.mini-card-id{ position:absolute; top:12px; left:12px; font-family:var(--f-mono); font-size:.62rem; padding:4px 9px; border-radius:6px; background:rgba(0,0,0,.6); border:1px solid var(--border); color:var(--cyan); }
.mini-card-body{ padding:22px 24px; }
.mini-card-body h4{ font-size:1.08rem; margin-bottom:10px; }
.mini-card-body p{ font-size:.88rem; margin-bottom:16px; }
.mini-link{ display:inline-flex; align-items:center; gap:8px; font-weight:600; color:var(--cyan); font-size:.86rem; border-bottom:1px solid transparent; }
.mini-link:hover{ border-color: var(--cyan); gap:12px; }

/* =========================================================================
   CHAIRPERSON MESSAGE / QUOTE
   ========================================================================= */
.quote-section{ display:grid; grid-template-columns: 340px 1fr; gap:56px; align-items:center; }
.quote-portrait{ position:relative; }
.quote-portrait-frame{ position:relative; border-radius:var(--radius-lg); overflow:hidden; aspect-ratio:1/1.05; }
.quote-portrait-frame img{ width:100%; height:100%; object-fit:cover; }
.quote-portrait-frame::after{ content:''; position:absolute; inset:0; background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,.75)); }
.quote-portrait .ring{
  position:absolute; inset:-16px; border-radius:var(--radius-xl); z-index:-1;
  background: conic-gradient(from 0deg, var(--gold), var(--cyan), var(--purple), var(--gold));
  -webkit-mask-image: linear-gradient(#000,#000), linear-gradient(#000,#000);
  -webkit-mask-clip: content-box, border-box; -webkit-mask-composite: xor;
  mask-image: linear-gradient(#000,#000), linear-gradient(#000,#000);
  mask-clip: content-box, border-box; mask-composite: exclude;
  padding:1.5px; opacity:.7; animation: spin-ring 16s linear infinite;
}
@media (prefers-reduced-motion: reduce){ .quote-portrait .ring{ animation:none; } }
.quote-mark{ font-family:var(--f-display); font-size:5rem; line-height:.6; color:var(--cyan); opacity:.5; margin-bottom:10px; }
.quote-text{ font-size: clamp(1.2rem, 2.2vw, 1.7rem); font-family:var(--f-display); font-weight:500; color:var(--white); margin-bottom:26px; }
.quote-person{ display:flex; align-items:center; gap:14px; }
.quote-person-name{ font-weight:700; }
.quote-person-role{ font-size:.86rem; color:var(--muted); }

/* =========================================================================
   TESTIMONIALS
   ========================================================================= */
.testimonial-row{ display:flex; gap:22px; overflow:hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.testimonial-track{ display:flex; gap:22px; width:max-content; animation: marquee 55s linear infinite; }
.testimonial-track.reverse{ animation-direction: reverse; }
.testimonial-row:hover .testimonial-track{ animation-play-state:paused; }
.t-card{ flex:0 0 380px; padding:30px; }
.t-stars{ display:flex; gap:4px; color:var(--amber); margin-bottom:16px; }
.t-stars svg{ width:16px; height:16px; }
.t-text{ font-size:.96rem; margin-bottom:22px; }
.t-author{ display:flex; align-items:center; gap:12px; }
.t-author img{ width:42px; height:42px; border-radius:50%; object-fit:cover; }
.t-author-name{ font-weight:700; font-size:.92rem; color:var(--white); }
.t-author-role{ font-size:.78rem; color:var(--muted-2); }

/* =========================================================================
   GALLERY — masonry + lightbox
   ========================================================================= */
.gallery-masonry{ columns: 4 220px; column-gap:18px; }
.gallery-masonry .g-item{
  break-inside: avoid; margin-bottom:18px; border-radius:var(--radius-md); overflow:hidden; position:relative;
  border:1px solid var(--border); cursor:zoom-in;
}
.gallery-masonry .g-item img{ width:100%; display:block; transition: transform .6s var(--ease-soft); }
.gallery-masonry .g-item:hover img{ transform:scale(1.09); }
.gallery-masonry .g-item .g-overlay{
  position:absolute; inset:0; background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.85));
  display:flex; align-items:flex-end; padding:14px; opacity:0; transition: opacity var(--dur-fast) var(--ease);
  font-size:.82rem; font-weight:600;
}
.gallery-masonry .g-item:hover .g-overlay{ opacity:1; }

.lightbox{
  position:fixed; inset:0; z-index:2000; background: rgba(3,4,6,.94); backdrop-filter: blur(10px);
  display:flex; align-items:center; justify-content:center; opacity:0; visibility:hidden; transition: opacity .3s ease, visibility .3s ease;
}
.lightbox.active{ opacity:1; visibility:visible; }
.lightbox img{ max-width:88vw; max-height:82vh; border-radius:var(--radius-md); box-shadow:0 40px 100px rgba(0,0,0,.6), 0 0 0 1px rgba(217,164,65,.25), 0 0 60px -10px rgba(0,212,255,.35); }
.lightbox-close, .lightbox-nav{
  position:absolute; width:48px; height:48px; border-radius:50%; background: var(--surface-2); border:1px solid var(--border-strong);
  display:flex; align-items:center; justify-content:center; color:var(--white); transition: all var(--dur-fast) var(--ease);
}
.lightbox-close:hover, .lightbox-nav:hover{ background: var(--cyan); color:#000; }
.lightbox-close{ top:26px; right:26px; }
.lightbox-nav.prev{ left:26px; top:50%; transform:translateY(-50%); }
.lightbox-nav.next{ right:26px; top:50%; transform:translateY(-50%); }

/* =========================================================================
   SPONSORS MARQUEE
   ========================================================================= */
.sponsor-row{ overflow:hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.sponsor-track{ display:flex; align-items:center; gap:64px; width:max-content; animation: marquee 30s linear infinite; }
.sponsor-track span{ font-family:var(--f-display); font-size:1.3rem; font-weight:700; color:var(--muted-2); white-space:nowrap; transition: color var(--dur-fast) var(--ease); }
.sponsor-track span:hover{ color:var(--cyan); }

/* =========================================================================
   FAQ ACCORDION
   ========================================================================= */
.faq-list{ max-width:820px; margin:0 auto; display:flex; flex-direction:column; gap:14px; }
.faq-item{ border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; background:var(--surface); }
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:20px; padding:22px 26px;
  font-family:var(--f-display); font-weight:600; font-size:1.02rem; text-align:left;
}
.faq-q .plus{ position:relative; width:20px; height:20px; flex-shrink:0; }
.faq-q .plus::before, .faq-q .plus::after{ content:''; position:absolute; background:var(--cyan); border-radius:2px; transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease); }
.faq-q .plus::before{ inset:9px 0; height:2px; }
.faq-q .plus::after{ inset:0 9px; width:2px; }
.faq-item.open .plus::after{ transform: rotate(90deg); opacity:0; }
.faq-item.open .plus::before{ background: var(--gold); }
.faq-a{ max-height:0; overflow:hidden; transition: max-height .45s var(--ease-soft); }
.faq-a-inner{ padding:0 26px 24px; font-size:.94rem; color:var(--muted); }
.faq-item.open{ border-color: rgba(217,164,65,.35); }

/* =========================================================================
   CONTACT
   ========================================================================= */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:28px; align-items:stretch; }
.contact-form{ padding:44px; display:flex; flex-direction:column; gap:20px; position:relative; }
.contact-form::after{
  content:''; position:absolute; top:0; left:44px; right:44px; height:2px;
  background: var(--grad-fusion); opacity:.5; border-radius:2px;
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ position:relative; display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:.8rem; font-weight:600; color:var(--muted); text-transform:uppercase; letter-spacing:.06em; }
.field input, .field textarea{
  background: var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px 16px;
  font-size:.95rem; transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field input:focus, .field textarea:focus{ border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(0,229,255,.12); outline:none; }
.field textarea{ resize:vertical; min-height:120px; }
.field .err{ font-size:.78rem; color:var(--danger); min-height:1em; }
.field.invalid input, .field.invalid textarea{ border-color: var(--danger); }
.form-status{ font-size:.9rem; padding:12px 16px; border-radius:var(--radius-sm); display:none; }
.form-status.show{ display:block; }
.form-status.ok{ background: rgba(33,230,161,.12); border:1px solid rgba(33,230,161,.4); color:var(--success); }

.contact-side{ padding:44px; display:flex; flex-direction:column; gap:26px; }
.contact-map{ border-radius:var(--radius-md); overflow:hidden; border:1px solid var(--border); filter:grayscale(.5) contrast(1.1) brightness(.9); }
.contact-map iframe{ width:100%; height:220px; border:none; display:block; }
.contact-detail{ display:flex; gap:16px; align-items:flex-start; }
.contact-detail .ic{ width:42px; height:42px; border-radius:12px; background:var(--surface-2); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.contact-detail .ic svg{ width:19px; height:19px; color:var(--cyan); }
.contact-detail h4{ font-size:.95rem; margin-bottom:4px; }
.contact-detail p, .contact-detail a{ font-size:.88rem; }
.contact-detail a:hover{ color:var(--cyan); }

/* =========================================================================
   FOOTER
   ========================================================================= */
.site-footer{ position:relative; border-top:1px solid var(--border); padding-top:80px; overflow:hidden; }
.footer-glow{ position:absolute; top:-200px; left:50%; transform:translateX(-50%); width:900px; height:400px; background: radial-gradient(ellipse, rgba(0,212,255,.12), transparent 70%); pointer-events:none; }
/* Hairline jaali strip standing in for a decorative rule between the link grid and the legal line */
.footer-jaali{
  height:24px; margin:0 auto 40px; max-width:620px;
  background-image: var(--jaali-pattern); background-repeat:repeat-x; background-size:48px 24px; background-position:center;
  opacity:.4;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
}
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:56px; }
.footer-brand{ display:flex; align-items:center; gap:12px; margin-bottom:18px; font-family:var(--f-display); font-weight:700; font-size:1.1rem; }
.footer-brand img{ height:36px; }
.footer-about p{ font-size:.92rem; max-width:320px; margin-bottom:22px; }
.footer-socials{ display:flex; gap:12px; }
.footer-socials a{
  width:40px; height:40px; border-radius:50%; border:1px solid var(--border); display:flex; align-items:center; justify-content:center;
  transition: all var(--dur-fast) var(--ease);
}
.footer-socials a:hover{ background: var(--cyan); border-color:var(--cyan); color:#000; transform:translateY(-4px); }
.footer-col h5{ font-size:.86rem; text-transform:uppercase; letter-spacing:.1em; color:var(--white); margin-bottom:20px; }
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col a{ font-size:.92rem; color:var(--muted); transition: color var(--dur-fast) var(--ease); }
.footer-col a:hover{ color:var(--cyan); }
.newsletter-form{ display:flex; gap:0; border:1px solid var(--border); border-radius:var(--radius-pill); overflow:hidden; padding:4px; margin-top:6px; }
.newsletter-form input{ flex:1; background:transparent; border:none; padding:10px 16px; font-size:.9rem; }
.newsletter-form input:focus{ outline:none; }
.newsletter-form button{ background: var(--grad-aurora); color:#04070a; font-weight:700; padding:10px 20px; border-radius:var(--radius-pill); font-size:.86rem; }
.footer-bottom{ border-top:1px solid var(--border); padding:26px 0; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:.84rem; color:var(--muted-2); }
.footer-bottom a{ color:var(--cyan); }

/* =========================================================================
   BACK TO TOP
   ========================================================================= */
.back-to-top{
  position:fixed; bottom:30px; right:30px; width:52px; height:52px; border-radius:50%; z-index:500;
  background: var(--surface-2); border:1px solid var(--border-strong); backdrop-filter: blur(10px);
  display:flex; align-items:center; justify-content:center; opacity:0; visibility:hidden; transform:translateY(20px);
  transition: all var(--dur-mid) var(--ease-soft);
}
.back-to-top.show{ opacity:1; visibility:visible; transform:none; }
.back-to-top:hover{ background:var(--cyan); border-color:var(--cyan); color:#000; box-shadow: var(--glow-cyan); }
.back-to-top svg{ width:20px; height:20px; }

/* =========================================================================
   PAGE HEADER (events / team)
   ========================================================================= */
.page-hero{ padding: calc(var(--nav-h) + 90px) 0 60px; text-align:center; position:relative; }
.page-hero h1{ font-size: clamp(2.6rem, 6vw, 4.6rem); margin-bottom:20px; }
.page-hero p{ max-width:640px; margin:0 auto; font-size:1.06rem; }
.page-hero-stats{ display:flex; justify-content:center; gap:50px; margin-top:44px; flex-wrap:wrap; }

/* =========================================================================
   EVENTS PAGE — countdown, filters, timeline
   ========================================================================= */
.countdown-card{ display:grid; grid-template-columns: 1fr auto; gap:30px; align-items:center; padding:38px 44px; }
.countdown-info h3{ font-size:1.5rem; margin-bottom:8px; }
.countdown-info p{ font-size:.92rem; }
.countdown-timer{ display:flex; gap:14px; }
.countdown-unit{ text-align:center; min-width:70px; }
.countdown-num{ font-family:var(--f-display); font-size:2.1rem; font-weight:800; color:var(--cyan); background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius-sm); padding:10px 0; }
.countdown-label{ font-size:.68rem; text-transform:uppercase; letter-spacing:.12em; color:var(--muted); margin-top:8px; }

.filter-bar{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:50px; }
.filter-btn{
  padding:10px 22px; border-radius: var(--radius-pill); border:1px solid var(--border); background: var(--surface);
  font-size:.88rem; font-weight:600; color:var(--muted); transition: all var(--dur-fast) var(--ease);
}
.filter-btn:hover{ color:var(--white); border-color:var(--border-strong); }
.filter-btn.active{ background: var(--grad-aurora); color:#04070a; border-color:transparent; }

.search-input-wrap{ position:relative; flex:1; min-width:220px; margin-left:auto; }
.search-input-wrap svg{ position:absolute; left:16px; top:50%; transform:translateY(-50%); width:17px; height:17px; color:var(--muted); pointer-events:none; }
.search-input-wrap input{
  width:100%; padding:11px 16px 11px 44px; border-radius:var(--radius-pill); background:var(--surface);
  border:1px solid var(--border); font-size:.88rem;
}
.search-input-wrap input:focus{ outline:none; border-color:var(--cyan); }

.timeline{ position:relative; }
.timeline::before{ content:''; position:absolute; left:50%; top:0; bottom:0; width:2px; background: linear-gradient(var(--border), var(--cyan), var(--border)); transform:translateX(-50%); }
.tl-item{ position:relative; display:grid; grid-template-columns: 1fr 60px 1fr; gap:0; margin-bottom:52px; }
.tl-item:last-child{ margin-bottom:0; }
.tl-dot{
  grid-column:2; width:16px; height:16px; border-radius:50%; background: var(--black); border:3px solid var(--cyan);
  justify-self:center; margin-top:36px; z-index:2; box-shadow:0 0 0 6px rgba(0,229,255,.12);
}
.tl-card{ grid-column:1; padding:0; overflow:hidden; }
.tl-item:nth-child(even) .tl-card{ grid-column:3; }
.tl-item:nth-child(even) .tl-empty{ grid-column:1; }
.tl-card-img{ height:210px; overflow:hidden; position:relative; }
.tl-card-img img{ width:100%; height:100%; object-fit:cover; transition: transform .6s var(--ease-soft); }
.tl-card:hover .tl-card-img img{ transform:scale(1.07); }
.tl-card-body{ padding:28px 30px; }
.tl-date{ display:inline-block; padding:5px 14px; border-radius:var(--radius-pill); background: rgba(0,229,255,.1); border:1px solid rgba(0,229,255,.25); color:var(--cyan); font-size:.76rem; font-weight:700; margin-bottom:14px; }
.tl-card-body h3{ font-size:1.34rem; margin-bottom:12px; }
.tl-card-body p{ font-size:.92rem; margin-bottom:18px; }
.tl-tags{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:16px; }
.tl-tag{ display:inline-flex; align-items:center; gap:6px; font-size:.78rem; color:var(--muted); background:var(--surface-2); padding:6px 12px; border-radius:var(--radius-pill); border:1px solid var(--border); }
.tl-tag svg{ width:13px; height:13px; color:var(--cyan); }
.tl-organizer{ font-size:.8rem; color:var(--muted-2); font-style:normal; padding-top:14px; border-top:1px solid var(--border); }
.tl-organizer strong{ color:var(--cyan); }

/* =========================================================================
   TEAM PAGE — grid, search/filter, modal
   ========================================================================= */
.team-toolbar{ display:flex; gap:16px; flex-wrap:wrap; align-items:center; margin-bottom:50px; }
.team-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap:26px; }
.team-card{ padding:34px 26px; text-align:center; display:flex; flex-direction:column; align-items:center; gap:14px; cursor:pointer; }
.team-avatar{
  width:104px; height:104px; border-radius:50%; overflow:hidden; border:2px solid var(--border-strong); position:relative;
  transition: border-color var(--dur-mid) var(--ease-soft), box-shadow var(--dur-mid) var(--ease-soft);
}
.team-avatar img{ width:100%; height:100%; object-fit:cover; filter:saturate(.9); transition: transform .5s var(--ease-soft), filter .5s var(--ease-soft); }
.team-card:hover .team-avatar{ box-shadow: 0 0 0 5px rgba(217,164,65,.14), 0 0 24px -4px rgba(0,212,255,.45); }
.team-card:hover .team-avatar img{ transform:scale(1.08); filter:saturate(1.1); }
.team-card[data-group="faculty"] .team-avatar{ border-color: rgba(79,141,255,.5); }
.team-card[data-group="leads"] .team-avatar{ border-color: rgba(0,229,255,.55); }
.team-card[data-group="members"] .team-avatar{ border-color: rgba(255,79,163,.4); }
.team-name{ font-size:1.08rem; font-weight:700; }
.team-role{ font-size:.86rem; font-weight:600; color:var(--cyan); }
.team-dept{ font-size:.8rem; color:var(--muted-2); }
.team-card .linkedin-mini{ margin-top:6px; width:34px; height:34px; border-radius:50%; background:var(--surface-2); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; transition: all var(--dur-fast) var(--ease); }
.team-card .linkedin-mini:hover{ background:var(--cyan); color:#000; transform:translateY(-3px) scale(1.08); box-shadow: var(--glow-cyan); }
.team-card .linkedin-mini svg{ width:16px; height:16px; }

.no-results{ text-align:center; padding:70px 20px; color:var(--muted); display:none; }
.no-results.show{ display:block; }

.member-modal{
  position:fixed; inset:0; z-index:2000; background: rgba(3,4,6,.85); backdrop-filter: blur(12px);
  display:flex; align-items:center; justify-content:center; opacity:0; visibility:hidden; transition: opacity .3s ease, visibility .3s ease; padding:20px;
}
.member-modal.active{ opacity:1; visibility:visible; }
.member-modal-card{
  max-width:460px; width:100%; padding:46px 40px; text-align:center; position:relative;
  transform: scale(.9); transition: transform .3s var(--ease-soft);
}
.member-modal.active .member-modal-card{ transform:scale(1); }
.member-modal-close{ position:absolute; top:20px; right:20px; width:38px; height:38px; border-radius:50%; background:var(--surface-2); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; }
.member-modal-avatar{ width:120px; height:120px; border-radius:50%; overflow:hidden; margin:0 auto 20px; border:3px solid var(--cyan); }
.member-modal-avatar img{ width:100%; height:100%; object-fit:cover; }
.member-modal-name{ font-size:1.5rem; margin-bottom:6px; }
.member-modal-role{ color:var(--cyan); font-weight:600; margin-bottom:4px; }
.member-modal-dept{ color:var(--muted); font-size:.9rem; margin-bottom:6px; }
.member-modal-id{ font-family:var(--f-mono); font-size:.78rem; color:var(--muted-2); margin-bottom:22px; }

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1080px){
  .about-grid{ grid-template-columns:1fr; }
  .about-feature{ grid-row:auto; min-height:320px; }
  .why-grid{ grid-template-columns: repeat(2, 1fr); }
  .domains-grid{ grid-template-columns: repeat(3, 1fr); }
  .domain-tile, .domain-tile.big{ grid-column:span 3; grid-row:span 1; }
  .feature-event{ grid-template-columns:1fr; }
  .feature-event-media{ min-height:280px; }
  .quote-section{ grid-template-columns:1fr; }
  .quote-portrait{ max-width:260px; margin:0 auto; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .tl-item, .tl-item:nth-child(even){ grid-template-columns: 30px 1fr; }
  .timeline::before{ left:14px; }
  .tl-dot{ grid-column:1; margin-top:36px; }
  .tl-card, .tl-item:nth-child(even) .tl-card{ grid-column:2; }
  .tl-empty{ display:none; }
}

@media (max-width: 760px){
  :root{ --nav-h: 70px; }
  .nav-links{
    position:fixed; top: var(--nav-h); left:0; right:0; bottom:0; flex-direction:column; justify-content:flex-start;
    padding:40px 24px; gap:6px; background: rgba(5,6,9,.98); backdrop-filter: blur(20px);
    transform: translateX(100%); transition: transform var(--dur-mid) var(--ease-soft);
  }
  .nav-links.active{ transform:none; }
  .nav-links a{ width:100%; padding:16px 6px; font-size:1.1rem; border-bottom:1px solid var(--border); }
  .nav-toggle{ display:flex; }
  .nav-cta .btn-ghost{ display:none; }
  .stats-grid{ grid-template-columns: repeat(2, 1fr); gap:30px; }
  .stat-item:nth-child(2)::before{ display:none; }
  .why-grid{ grid-template-columns:1fr; }
  .domains-grid{ grid-template-columns: repeat(2, 1fr); }
  .domain-tile, .domain-tile.big{ grid-column:span 2; }
  .gallery-masonry{ columns: 2 160px; }
  .footer-grid{ grid-template-columns:1fr; gap:34px; }
  .form-row{ grid-template-columns:1fr; }
  .countdown-card{ grid-template-columns:1fr; text-align:center; }
  .countdown-timer{ justify-content:center; }
  .countdown-info{ text-align:center; }
  .page-hero-stats{ gap:28px; }
  .search-input-wrap{ margin-left:0; width:100%; }
  .contact-form, .contact-side{ padding:30px 24px; }
  .about-feature, .about-side{ padding:28px; }

  .page-hero{ padding: calc(var(--nav-h) + 72px) 0 48px; }
  .page-hero h1{ font-size: clamp(2.3rem, 10vw, 3.8rem); }
  .page-hero p{ font-size: .98rem; }
  .page-hero-stats{ gap:18px; }

  .countdown-card{ padding:28px 20px; }
  .countdown-timer{ flex-wrap:wrap; justify-content:center; }
  .countdown-unit{ min-width:64px; flex:1 1 44%; }

  .filter-bar{ gap:10px; }
  .filter-btn{ width:100%; }
  .search-input-wrap{ width:100%; }

  .timeline::before{ left:8px; }
  .tl-item, .tl-item:nth-child(even){ grid-template-columns: 18px 1fr; margin-bottom:34px; }
  .tl-dot{ grid-column:1; width:14px; height:14px; margin-top:30px; }
  .tl-card, .tl-item:nth-child(even) .tl-card{ grid-column:2; }
  .tl-card-img{ height:180px; }
  .tl-card-body{ padding:22px 20px; }

  .team-toolbar{ margin-bottom:34px; }
  .team-toolbar .filter-btn{ width:auto; flex:1 1 140px; }
  .team-toolbar .search-input-wrap{ width:100%; margin-left:0; }
  .team-grid{ grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap:20px; }
  .team-card{ padding:28px 18px; }
  .team-avatar{ width:92px; height:92px; }
}

@media (max-width: 520px){
  .countdown-unit{ flex-basis: calc(50% - 7px); }
  .filter-btn{ flex:1 1 100%; }
  .page-hero-stats{ gap:14px; }
  .stat-item{ min-width: 120px; }
}