/* ============================================
   CYBER CHAKRAVYUH — v2 Design System
   Clean, Professional, Dual-Theme
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@400;500;600;700;800;900&display=swap');

/* ============================================
   Theme Variables
   ============================================ */
:root {
  --accent: #15803d;
  --accent-light: #22c55e;
  --accent-bg: rgba(21, 128, 61, 0.06);
  --accent-border: rgba(21, 128, 61, 0.18);
  --accent-text: #15803d;
  --bg: #ffffff;
  --bg-alt: #f8faf9;
  --bg-card: #ffffff;
  --bg-hero: #f0fdf4;
  --text: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --nav-bg: rgba(255,255,255,0.88);
  --nav-border: rgba(0,0,0,0.06);
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

[data-theme="dark"] {
  --accent: #39FF14;
  --accent-light: #4dff33;
  --accent-bg: rgba(57, 255, 20, 0.06);
  --accent-border: rgba(57, 255, 20, 0.15);
  --accent-text: #39FF14;
  --bg: #0a0a0f;
  --bg-alt: #111118;
  --bg-card: #16161d;
  --bg-hero: #0d0d14;
  --text: #f0f0f5;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border: rgba(255,255,255,0.08);
  --border-light: rgba(255,255,255,0.04);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow: 0 4px 16px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.4);
  --nav-bg: rgba(10,10,15,0.88);
  --nav-border: rgba(255,255,255,0.06);
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; border: none; outline: none; background: none; color: inherit; }
button { cursor: pointer; }

/* ============================================
   Layout
   ============================================ */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section--alt { background: var(--bg-alt); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

/* ============================================
   Scroll Progress Bar
   ============================================ */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--accent); z-index: 10000; transform-origin: left; transform: scaleX(0); width: 100%; }

/* ============================================
   Navbar — MUN Society / Conclave Style
   ============================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 72px;
  background: var(--nav-bg);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.nav-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-brand img { width: 42px; height: 42px; object-fit: contain; border-radius: 8px; }
.nav-brand span {
  font-family: var(--font-heading); font-size: 15px; font-weight: 700;
  color: var(--text); letter-spacing: -0.01em;
}
.nav-links {
  display: flex; align-items: center; gap: 4px;
}
.nav-link {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  padding: 8px 12px; border-radius: var(--radius); white-space: nowrap;
  transition: var(--transition);
}
.nav-link:hover { color: var(--accent-text); background: var(--accent-bg); }
.nav-link.active { color: var(--accent-text); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* Theme Toggle */
.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--bg-card);
  font-size: 18px; transition: var(--transition);
}
.theme-toggle:hover { border-color: var(--accent-border); background: var(--accent-bg); }
.theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: inline; }

/* Mobile Hamburger */
.nav-hamburger {
  display: none; width: 40px; height: 40px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  border-radius: var(--radius); border: 1px solid var(--border);
}
.nav-hamburger span {
  width: 18px; height: 2px; background: var(--text); border-radius: 2px;
  transition: var(--transition);
}
.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(3px, 3px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(3px, -3px); }

/* Mobile Menu */
.mobile-menu {
  position: fixed; top: 72px; right: -100%; width: 300px; bottom: 0;
  background: var(--bg-card); border-left: 1px solid var(--border);
  z-index: 999; padding: 24px; transition: right 0.3s ease;
  box-shadow: var(--shadow-lg);
}
.mobile-menu.active { right: 0; }
.mobile-menu a {
  display: block; padding: 14px 16px; font-size: 15px; font-weight: 500;
  color: var(--text-secondary); border-radius: var(--radius);
  transition: var(--transition);
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--accent-text); background: var(--accent-bg); }
.mobile-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.3);
  z-index: 998; opacity: 0; visibility: hidden; transition: var(--transition);
}
.mobile-backdrop.active { opacity: 1; visibility: visible; }

/* ============================================
   Hero — Clean, Professional
   ============================================ */
.hero {
  padding: 140px 0 80px; text-align: center;
  background: var(--bg-hero); position: relative; overflow: hidden;
}
.hero-glow {
  position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(34,197,94,0.08) 0%, transparent 70%);
  pointer-events: none;
}
[data-theme="dark"] .hero-glow {
  background: radial-gradient(circle, rgba(57,255,20,0.06) 0%, transparent 70%);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: var(--radius-full);
  background: var(--accent-bg); border: 1px solid var(--accent-border);
  font-size: 13px; font-weight: 600; color: var(--accent-text);
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-heading); font-size: clamp(36px, 6vw, 64px);
  font-weight: 800; line-height: 1.1; letter-spacing: -0.02em;
  max-width: 800px; margin: 0 auto 20px;
}
.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px); color: var(--text-secondary);
  max-width: 600px; margin: 0 auto 36px; line-height: 1.7;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Inner Page Hero */
.hero-inner {
  padding: 140px 0 60px; text-align: center;
  background: var(--bg-hero); border-bottom: 1px solid var(--border);
}
.hero-inner .hero-title { font-size: clamp(30px, 5vw, 52px); margin-bottom: 12px; }
.hero-inner .hero-subtitle { margin-bottom: 0; }

/* ============================================
   Section Headers
   ============================================ */
.section-label {
  font-family: var(--font-heading); font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent-text); margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-heading); font-size: clamp(26px, 4vw, 40px);
  font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 16px;
}
.section-desc {
  font-size: 17px; color: var(--text-secondary); max-width: 560px; line-height: 1.8;
}
.section-header { margin-bottom: 48px; }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin: 0 auto; }

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; font-size: 14px; font-weight: 600;
  border-radius: var(--radius-full); transition: var(--transition);
}
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 2px 8px rgba(21,128,61,0.2);
}
[data-theme="dark"] .btn-primary { color: #000; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(21,128,61,0.3); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent-text); color: var(--accent-text); }
.btn-arrow::after { content: '→'; transition: var(--transition); }
.btn-arrow:hover::after { transform: translateX(3px); }

/* ============================================
   Stats
   ============================================ */
.stats-bar {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.stat-item {
  padding: 32px 24px; text-align: center;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--font-heading); font-size: 36px; font-weight: 800;
  color: var(--accent-text); line-height: 1;
}
.stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }

/* ============================================
   Cards — Clean
   ============================================ */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  transition: var(--transition);
}
.card:hover { border-color: var(--accent-border); box-shadow: var(--shadow); transform: translateY(-2px); }
.card-icon {
  width: 44px; height: 44px; border-radius: var(--radius);
  background: var(--accent-bg); display: flex; align-items: center;
  justify-content: center; font-size: 20px; margin-bottom: 16px;
}
.card-title {
  font-family: var(--font-heading); font-size: 17px; font-weight: 700; margin-bottom: 8px;
}
.card-text { font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

/* ============================================
   Team Cards
   ============================================ */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 24px; }
.team-grid--featured { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; margin-bottom: 40px; }
.team-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition);
}
.team-card:hover { border-color: var(--accent-border); box-shadow: var(--shadow); transform: translateY(-3px); }
.team-card-img {
  width: 100%; aspect-ratio: 1; background: var(--bg-alt);
  overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.team-card-img span {
  font-family: var(--font-heading); font-size: 32px; font-weight: 700;
  color: var(--text-muted); opacity: 0.4;
}
.team-card-info { padding: 18px 20px; }
.team-card-name { font-family: var(--font-heading); font-size: 15px; font-weight: 700; margin-bottom: 2px; }
.team-card-role { font-size: 13px; color: var(--accent-text); font-weight: 500; margin-bottom: 10px; }
.team-card-socials { display: flex; gap: 8px; }
.team-card-socials a {
  width: 30px; height: 30px; border: 1px solid var(--border);
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-size: 13px; color: var(--text-muted);
}
.team-card-socials a:hover { border-color: var(--accent-border); color: var(--accent-text); }

/* ============================================
   Event Cards
   ============================================ */
.events-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; }
.event-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition);
}
.event-card:hover { border-color: var(--accent-border); box-shadow: var(--shadow); transform: translateY(-2px); }
.event-card-img {
  width: 100%; aspect-ratio: 16/9; background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.event-card-img span {
  font-family: var(--font-heading); font-size: 40px; font-weight: 800;
  color: var(--accent-text); opacity: 0.12;
}
.event-card-badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--accent); color: #fff; font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: var(--radius-full);
}
[data-theme="dark"] .event-card-badge { color: #000; }
.event-card-body { padding: 20px; }
.event-card-date { font-size: 13px; color: var(--accent-text); font-weight: 500; margin-bottom: 6px; }
.event-card-title { font-family: var(--font-heading); font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.event-card-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; }
.event-card-link { font-size: 13px; font-weight: 600; color: var(--accent-text); display: inline-flex; align-items: center; gap: 4px; }
.event-card-link:hover { gap: 8px; }

/* Featured Event */
.featured-event {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  margin-bottom: 48px;
}
.featured-event-img {
  aspect-ratio: 16/10; border-radius: var(--radius); overflow: hidden;
  background: var(--bg-alt); display: flex; align-items: center; justify-content: center;
}
.countdown { display: flex; gap: 16px; margin: 20px 0; }
.countdown-item { text-align: center; }
.countdown-number { font-family: var(--font-heading); font-size: 32px; font-weight: 800; color: var(--accent-text); }
.countdown-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

/* ============================================
   Achievement Cards
   ============================================ */
.achievement-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px; transition: var(--transition);
}
.achievement-card:hover { border-color: var(--accent-border); box-shadow: var(--shadow); transform: translateY(-2px); }
.achievement-card-icon { font-size: 28px; margin-bottom: 12px; }
.achievement-card-title { font-family: var(--font-heading); font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.achievement-card-event { font-size: 13px; color: var(--accent-text); font-weight: 500; margin-bottom: 3px; }
.achievement-card-date { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; }
.achievement-card-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ============================================
   Collaboration Logos
   ============================================ */
.collab-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 20px; }
.collab-logo-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px; aspect-ratio: 3/2;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); text-align: center;
}
.collab-logo-card:hover { border-color: var(--accent-border); background: var(--accent-bg); }
.collab-logo-card span {
  font-family: var(--font-heading); font-size: 11px; font-weight: 700;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em;
}

/* ============================================
   Timeline
   ============================================ */
.timeline { position: relative; padding: 20px 0; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--border); transform: translateX(-50%);
}
.timeline-item { display: flex; justify-content: center; padding: 16px 0; position: relative; }
.timeline-item:nth-child(odd) .timeline-content { margin-right: calc(50% + 32px); text-align: right; }
.timeline-item:nth-child(even) .timeline-content { margin-left: calc(50% + 32px); }
.timeline-dot {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 12px; height: 12px; background: var(--accent); border-radius: 50%;
  z-index: 2; border: 3px solid var(--bg);
}
.timeline-content {
  max-width: 380px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
}
.timeline-year { font-family: var(--font-heading); font-size: 13px; font-weight: 700; color: var(--accent-text); margin-bottom: 6px; }
.timeline-title { font-family: var(--font-heading); font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.timeline-text { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ============================================
   Newsletter Cards
   ============================================ */
.newsletter-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.newsletter-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition);
}
.newsletter-card:hover { border-color: var(--accent-border); box-shadow: var(--shadow); transform: translateY(-2px); }
.newsletter-card-cover {
  width: 100%; aspect-ratio: 16/10; background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 32px; font-weight: 800; color: var(--accent-text); opacity: 0.12;
}
.newsletter-card-body { padding: 20px; }
.newsletter-card-issue { font-size: 12px; font-weight: 600; color: var(--accent-text); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.newsletter-card-title { font-family: var(--font-heading); font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.newsletter-card-date { font-size: 13px; color: var(--text-muted); margin-bottom: 10px; }
.newsletter-card-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }

/* Alumni & Testimonial */
.alumni-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  display: flex; gap: 16px; align-items: flex-start; transition: var(--transition);
}
.alumni-card:hover { border-color: var(--accent-border); }
.alumni-avatar {
  width: 48px; height: 48px; border-radius: 50%; background: var(--accent-bg);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 16px; font-weight: 700;
  color: var(--accent-text); flex-shrink: 0;
}
.alumni-info h4 { font-family: var(--font-heading); font-size: 15px; font-weight: 700; margin-bottom: 2px; }
.alumni-info .alumni-role { font-size: 13px; color: var(--accent-text); margin-bottom: 2px; }
.alumni-info .alumni-current { font-size: 13px; color: var(--text-secondary); }
.testimonial-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
}
.testimonial-text { font-size: 15px; color: var(--text-secondary); line-height: 1.8; font-style: italic; margin-bottom: 16px; }
.testimonial-author { font-family: var(--font-heading); font-size: 14px; font-weight: 700; }
.testimonial-role { font-size: 12px; color: var(--text-muted); }

/* ============================================
   Contact Form
   ============================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.form-group { margin-bottom: 24px; }
.form-label {
  display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary);
  margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.04em;
}
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 12px 16px; font-size: 15px; color: var(--text);
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius); transition: var(--transition);
}
.form-input:focus, .form-textarea:focus, .form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-bg); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { cursor: pointer; -webkit-appearance: none; appearance: none; }
.form-select option { background: var(--bg-card); color: var(--text); }
.contact-info-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.contact-info-item { display: flex; align-items: flex-start; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon {
  width: 36px; height: 36px; background: var(--accent-bg); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0;
}
.contact-info-text h4 { font-family: var(--font-heading); font-size: 13px; font-weight: 700; margin-bottom: 2px; }
.contact-info-text p { font-size: 14px; color: var(--text-secondary); }
.contact-info-text a { color: var(--accent-text); }
.contact-social { display: flex; gap: 10px; margin-top: 20px; }
.contact-social a {
  width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--text-muted); transition: var(--transition);
}
.contact-social a:hover { border-color: var(--accent-border); color: var(--accent-text); }
.map-placeholder {
  width: 100%; height: 280px; background: var(--bg-alt);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 14px; margin-top: 28px; overflow: hidden;
}
.map-placeholder iframe { width: 100%; height: 100%; border: none; }

/* ============================================
   Newsletter CTA
   ============================================ */
.newsletter-cta {
  background: var(--accent); border-radius: var(--radius-lg);
  padding: 48px; display: grid; grid-template-columns: auto 1fr;
  gap: 40px; align-items: center; color: #fff;
}
[data-theme="dark"] .newsletter-cta { color: #000; }
.newsletter-cta-logo img { width: 80px; border-radius: var(--radius); }
.newsletter-cta-title { font-family: var(--font-heading); font-size: clamp(18px, 3vw, 26px); font-weight: 800; margin-bottom: 16px; }
.newsletter-form {
  display: flex; align-items: center; gap: 12px;
  border-bottom: 2px solid currentColor; padding-bottom: 8px; max-width: 420px;
}
.newsletter-form label { font-size: 13px; font-weight: 700; white-space: nowrap; }
.newsletter-form input { flex: 1; font-size: 15px; background: transparent; border: none; color: inherit; padding: 6px 0; }
.newsletter-form input::placeholder { opacity: 0.5; color: inherit; }
.newsletter-form button { font-size: 18px; background: none; border: none; color: inherit; cursor: pointer; }

/* ============================================
   Marquee
   ============================================ */
.marquee-section { padding: 32px 0; overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.marquee-track { display: flex; animation: marquee 25s linear infinite; width: max-content; }
.marquee-content { display: flex; align-items: center; flex-shrink: 0; }
.marquee-item {
  font-family: var(--font-heading); font-size: clamp(24px, 4vw, 44px);
  font-weight: 800; white-space: nowrap; padding: 0 20px; line-height: 1;
}
.marquee-item--filled { color: var(--text); }
.marquee-item--accent { color: var(--accent-text); }
.marquee-item--outlined { color: transparent; -webkit-text-stroke: 1px var(--text-muted); }
.marquee-separator { color: var(--accent-text); font-size: 14px; padding: 0 8px; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ============================================
   Filter Tabs
   ============================================ */
.filter-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.filter-tab {
  padding: 8px 18px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--border); border-radius: var(--radius-full);
  color: var(--text-secondary); cursor: pointer; transition: var(--transition); background: transparent;
}
.filter-tab:hover, .filter-tab.active { border-color: var(--accent); color: var(--accent-text); background: var(--accent-bg); }

/* ============================================
   Footer
   ============================================ */
.footer { padding: 64px 0 24px; background: var(--bg-alt); border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand { max-width: 280px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo img { width: 36px; height: 36px; border-radius: 8px; }
.footer-logo span { font-family: var(--font-heading); font-size: 14px; font-weight: 700; }
.footer-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; color: var(--text-muted); transition: var(--transition);
}
.footer-social a:hover { border-color: var(--accent-border); color: var(--accent-text); }
.footer-column h4 { font-family: var(--font-heading); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; }
.footer-column ul li { margin-bottom: 10px; }
.footer-column ul li a { font-size: 14px; color: var(--text-secondary); }
.footer-column ul li a:hover { color: var(--accent-text); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-copyright { font-size: 13px; color: var(--text-muted); }
.footer-back-top {
  font-size: 13px; font-weight: 600; color: var(--accent-text);
  display: flex; align-items: center; gap: 6px; cursor: pointer;
  background: none; border: none;
}

/* ============================================
   Scroll Reveal
   ============================================ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1100px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}
@media (max-width: 900px) {
  .two-col, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .featured-event { grid-template-columns: 1fr; padding: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .newsletter-cta { grid-template-columns: 1fr; text-align: center; padding: 32px 24px; }
  .newsletter-cta-logo { margin: 0 auto; }
  .timeline::before { left: 20px; }
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content { margin-left: 48px; margin-right: 0; text-align: left; }
  .timeline-dot { left: 20px; }
}
@media (max-width: 768px) {
  .three-col { grid-template-columns: 1fr; }
  .events-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 120px 0 60px; }
}
@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr; }
  .team-grid, .newsletter-grid { grid-template-columns: 1fr; }
  .collab-grid { grid-template-columns: 1fr 1fr; }
}

/* ============================================
   Utilities
   ============================================ */
.text-accent { color: var(--accent-text); }
.text-center { text-align: center; }
.mt-12 { margin-top: 12px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }