/*  Global Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: #0f0f0f; color: #f5f5f5; font-family: "Inter", sans-serif; overflow-x: hidden; transition: background 0.3s, color 0.3s; }
body.light { background: #f5f5f5; color: #111; }
body.light h1, body.light h2 { color: #111; }

/*Canvas Background */
#bg-canvas { position: fixed; top:0; left:0; z-index:0; width:100%; height:100%; }

/* ===== Hero Section ===== */
#hero { height:100vh; display:flex; flex-direction:column; justify-content:center; align-items:center; text-align:center; position:relative; z-index:2; }
#hero h1 { font-size:3.5rem; font-family:"Orbitron", sans-serif; color:#00ffe0; text-shadow:0 0 10px #00ffe0; }

/* Animated Gradient + Glow Tagline */
#hero .tagline {
  margin: 15px 0 25px;
  font-size:1.8rem;
  font-weight:bold;
  background: linear-gradient(270deg, #ff6ec4, #7873f5, #00ffe0, #ff6ec4);
  background-size: 800% 800%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientMove 10s ease infinite, glowText 2s ease-in-out infinite alternate;
  min-height: 40px;
}
@keyframes gradientMove { 0% { background-position:0% 50%; } 50% { background-position:100% 50%; } 100% { background-position:0% 50%; } }
@keyframes glowText { 0% { text-shadow:0 0 5px rgba(255,110,196,0.6),0 0 10px rgba(120,115,245,0.5); } 50% { text-shadow:0 0 15px rgba(0,255,224,0.7),0 0 25px rgba(255,110,196,0.7); } 100% { text-shadow:0 0 5px rgba(255,110,196,0.6),0 0 10px rgba(120,115,245,0.5); } }

/* CTA Button Glow Pulse */
#hero button {
  padding:12px 24px;
  background:#00ffe0;
  border:none;
  border-radius:6px;
  font-weight:bold;
  cursor:pointer;
  transition:0.3s;
  animation:pulse 2s infinite;
}
@keyframes pulse { 0% { box-shadow:0 0 10px #00ffe0; } 50% { box-shadow:0 0 25px #00ffe0; } 100% { box-shadow:0 0 10px #00ffe0; } }
#hero button:hover { background:#00bfa5; box-shadow:0 0 15px #00ffe0; }

/* Scroll Indicator */
#scroll-indicator {
  font-size:2rem;
  color:#00ffe0;
  position:absolute;
  bottom:20px;
  left:50%;
  transform:translateX(-50%);
  animation:bounce 1.5s infinite;
  z-index:2;
}
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0);} 50%{transform:translateX(-50%) translateY(10px);} }

/* Sections */
section { padding:60px 20px; text-align:center; position:relative; z-index:2; }
h2 { margin-bottom:20px; font-size:2rem; color:#00ffe0; }

/* Timeline */
.timeline { position:relative; margin:40px auto; max-width:600px; }
.timeline-line { position:absolute; left:20px; top:0; bottom:0; width:3px; background:#00ffe0; animation: glowLine 2s infinite alternate; }
@keyframes glowLine { 0%{background-color:#00ffe0;} 50%{background-color:#00bfa5;} 100%{background-color:#00ffe0;} }
.timeline-item { position:relative; margin:40px 0; padding-left:60px; opacity:1; transform:translateY(0); transition:opacity 0.6s ease, transform 0.6s ease; }
.timeline-item.hidden { opacity:0; transform:translateY(40px); }
.timeline-dot { position:absolute; left:10px; top:0; width:20px; height:20px; background:#00ffe0; border-radius:50%; box-shadow:0 0 10px #00ffe0; }
.timeline-content { background:rgba(255,255,255,0.05); padding:15px; border-radius:10px; backdrop-filter:blur(5px); transition:transform 0.3s, box-shadow 0.3s; }
.timeline-item:hover .timeline-content { transform:scale(1.05); box-shadow:0 0 15px #00ffe0; }

/* Glass Cards */
.glass-card {
  background:rgba(255,255,255,0.05);
  border-radius:15px;
  backdrop-filter:blur(10px);
  padding:40px 20px;
  margin:40px auto;
  width:80%;
  max-width:600px;
  box-shadow:0 0 20px rgba(0,255,224,0.2);
  transition:transform 0.3s ease, box-shadow 0.3s ease;
  perspective:1000px;
}
.glass-card:hover { transform:rotateY(3deg) rotateX(3deg); box-shadow:0 0 30px rgba(0,255,224,0.4); }

/* Registration Form */
#registration form { display:flex; flex-direction:column; gap:12px; max-width:320px; margin:auto; }
#registration input, #registration button { padding:12px; border:none; border-radius:5px; }
#registration button { background:#00ffe0; color:#0f0f0f; cursor:pointer; }
#registration button:hover { background:#00bfa5; box-shadow:0 0 10px #00ffe0; }

/* Sponsors */
.sponsor-logos { display:flex; justify-content:center; gap:20px; }
.sponsor { padding:20px; border:2px dashed #00ffe0; border-radius:10px; }

/* Contact & Social */
#contact a { color:#ff6ec4; font-weight:bold; text-decoration:none; transition:0.3s; }
#contact a:hover { color:#00ffe0; text-shadow:0 0 10px #00ffe0; }
.social-icons { display:flex; justify-content:center; gap:20px; margin:15px 0; }
.social-icons .social { text-decoration:none; font-weight:bold; color:#ff6ec4; transition:0.3s; }
.social-icons .social:hover { color:#00ffe0; text-shadow:0 0 10px #00ffe0,0 0 20px #00ffe0; }

/* Theme Toggle */
#theme-toggle { position:fixed; top:15px; right:15px; background:rgba(255,255,255,0.1); border:none; padding:10px; border-radius:50%; cursor:pointer; z-index:999; }