/* ============================================
   ICAC 2026 — Main Stylesheet
   Theme: Dark Blue Glassmorphism
   ============================================ */

/* ===== CSS VARIABLES ===== */
:root {
  --bg-primary: #0A192F;
  --bg-secondary: #0D2137;
  --bg-gradient: linear-gradient(135deg, #0F2027, #203A43, #2C5364);
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(0, 191, 255, 0.35);

  --accent-cyan: #00BFFF;
  --accent-blue: #38BDF8;
  --accent-orange: #FF7A00;
  --accent-secondary: #818CF8;
  --accent-green: #34D399;

  --text-primary: #EEF2F6;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --gradient-cyan: linear-gradient(135deg, #00BFFF, #38BDF8);
  --gradient-orange: linear-gradient(135deg, #FF7A00, #F97316);
  --gradient-hero: linear-gradient(135deg, rgba(10,25,47,0.95) 0%, rgba(6,36,72,0.92) 100%);
  
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  --shadow-card: 0 16px 48px rgba(0,0,0,0.6);
  --shadow-glow-cyan: 0 0 25px rgba(0,191,255,0.4);
  --shadow-glow-orange: 0 0 25px rgba(255,122,0,0.4);
  --radius-card: 20px;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== GLOBAL RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(0, 191, 255, 0.03) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

::selection { background: rgba(56,189,248,0.3); color: #fff; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-primary); border-radius: 3px; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 700; color: var(--text-primary); }

a { color: var(--accent-cyan); text-decoration: none; transition: var(--transition); }
a:hover { color: #fff; }

/* ===== UTILITY ===== */
.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-pad { padding: 120px 0; }
.section-dark { background: rgba(0,0,0,0.25); }

/* ===== SECTION HEADER ===== */
.section-tag {
  display: inline-block;
  padding: 4px 16px;
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(180deg, #fff 30%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  text-shadow: 0 0 30px rgba(0, 191, 255, 0.15);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 400;
  max-width: 650px;
  margin: 0 auto;
  opacity: 0.9;
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 44px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.5), transparent);
}

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

/* ===== BUTTONS ===== */
.btn-primary-glow {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 34px;
  background: var(--gradient-cyan);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  box-shadow: var(--shadow-glow-cyan);
}
.btn-primary-glow::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #7dd3fc, #a5b4fc);
  opacity: 0;
  transition: var(--transition);
}
.btn-primary-glow:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(56,189,248,0.5); color: #fff; }
.btn-primary-glow:hover::before { opacity: 1; }
.btn-primary-glow > * { position: relative; z-index: 1; }

.btn-outline-glow {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 34px;
  background: var(--gradient-orange);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: var(--shadow-glow-orange);
}
.btn-outline-glow:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(255, 122, 0, 0.5);
  color: #fff;
}

/* ===== BEC LOGO ===== */
.nav-bec-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 2px 8px rgba(56,189,248,0.35));
  transition: var(--transition);
  flex-shrink: 0;
}
.nav-bec-logo:hover { transform: scale(1.08) rotate(5deg); }

.nav-brand-divider {
  width: 1px;
  height: 32px;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.2), transparent);
  flex-shrink: 0;
}

.hero-bec-logo {
  width: 110px;
  height: 110px;
  object-fit: contain;
  border-radius: 50%;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 24px rgba(56,189,248,0.5));
  animation: logoPulse 3s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { filter: drop-shadow(0 4px 24px rgba(56,189,248,0.5)); }
  50%       { filter: drop-shadow(0 4px 36px rgba(129,140,248,0.7)); }
}

.footer-bec-logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 2px 8px rgba(56,189,248,0.3));
  flex-shrink: 0;
}

/* ===== NAVBAR ===== */
#mainNavbar {
  padding: 18px 0;
  transition: all 0.4s ease;
  z-index: 1000;
  background: transparent;
}
#mainNavbar.scrolled {
  padding: 10px 0;
  background: rgba(10,25,47,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

/* Logo */
.logo-badge {
  width: 46px; height: 46px;
  background: var(--gradient-accent);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.85rem;
  color: #fff;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(56,189,248,0.4);
}
.logo-year {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  line-height: 1.1;
}
.logo-sub {
  display: block;
  font-size: 0.65rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

/* Nav links */
.navbar-nav .nav-link {
  color: rgba(255,255,255,0.8) !important;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 8px 12px !important;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}
.navbar-nav .nav-link::after {
  content: '';
  position: absolute; bottom: 0; left: 12px; right: 12px;
  height: 3px;
  background: var(--accent-cyan);
  border-radius: 50px;
  transform: scaleX(0);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: right;
}
.navbar-nav .nav-link:hover { color: #fff !important; text-shadow: 0 0 10px rgba(0, 191, 255, 0.5); }
.navbar-nav .nav-link:hover::after { transform: scaleX(1); transform-origin: left; }

.navbar-toggler { border: 1px solid rgba(255,255,255,0.2); }
.navbar-toggler-icon { filter: invert(1); }

/* ===== HERO ===== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: 160px 0 100px;
}

.hero-bg {
  position: absolute; inset: 0;
  background: url('campus_bec.jpg') center/cover no-repeat;
  filter: brightness(0.45) contrast(1.1);
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-overlay {
  position: absolute; inset: 0;
  background: var(--gradient-hero);
}

.hero-section::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  background: linear-gradient(transparent, var(--bg-primary));
}

.hero-content {
  position: relative; z-index: 2;
  width: 100%;
}
.hero-glass-box {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  padding: 30px 20px;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: 0 25px 80px rgba(0,0,0,0.6);
  position: relative;
  overflow: hidden;
}
.hero-glass-box::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 0% 0%, rgba(0, 191, 255, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-particles-v2 {
  position: fixed; inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.particle-dot {
  position: absolute;
  width: 3px; height: 3px;
  background: var(--accent-cyan);
  border-radius: 50%;
  opacity: 0.2;
  filter: blur(1px);
  animation: floatDots 20s linear infinite;
  box-shadow: 0 0 10px var(--accent-cyan);
}
@keyframes floatDots {
  0%   { transform: translateY(100vh) translateX(0); opacity: 0; }
  20%  { opacity: 0.3; }
  80%  { opacity: 0.3; }
  100% { transform: translateY(-20vh) translateX(50px); opacity: 0; }
}

.hero-badge {
  display: inline-block;
  padding: 8px 24px;
  background: rgba(0, 191, 255, 0.1);
  border: 1px solid rgba(0, 191, 255, 0.3);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(0, 191, 255, 0.1);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 6.5rem);
  font-weight: 900;
  line-height: 0.9;
  color: #fff;
  letter-spacing: -3px;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(0, 191, 255, 0.3));
}

.hero-conference-name {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: rgba(255,255,255,0.8);
  font-weight: 400;
  margin-bottom: 20px;
  line-height: 1.5;
}

.hero-meta {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 10px 20px;
  font-size: 0.92rem;
  color: #CBD5E1;
  margin-bottom: 30px;
}
.hero-meta span { display: flex; align-items: center; gap: 6px; }
.hero-meta .divider { opacity: 0.4; }
.hero-meta i { color: var(--accent-primary); }

/* Countdown */
.countdown-wrapper {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; flex-wrap: wrap;
  margin-bottom: 30px;
}
.countdown-item {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(12px);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  border-radius: 18px;
  padding: 24px 34px;
  min-width: 105px;
  text-align: center;
  transition: var(--transition);
}
.countdown-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 30px rgba(0, 191, 255, 0.2);
}
.countdown-num[id="cd-secs"] {
  animation: pulseSecs 1s ease-in-out infinite;
}
@keyframes pulseSecs {
  0%, 100% { transform: scale(1); opacity: 1; text-shadow: var(--shadow-glow-cyan); }
  50%      { transform: scale(1.1); opacity: 0.8; text-shadow: 0 0 40px var(--accent-cyan); }
}
.countdown-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--gradient-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.countdown-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-secondary);
  margin-top: 8px;
}
.countdown-sep {
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(56,189,248,0.4);
  line-height: 1;
  margin-bottom: 24px;
}

.hero-cta-group {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 16px;
}

.hero-scroll-hint {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}
.scroll-dot {
  width: 24px; height: 40px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  position: relative;
}
.scroll-dot::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--accent-primary);
  border-radius: 2px;
  animation: scrollBounce 1.8s infinite;
}
@keyframes scrollBounce {
  0%,100% { top: 6px; opacity: 1; }
  60% { top: 20px; opacity: 0.3; }
}

/* ===== STATS STRIP ===== */
.stats-strip {
  background: rgba(13,33,55,0.9);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 32px 0;
}
.stat-item {
  padding: 20px;
  border-right: 1px solid var(--border-subtle);
  position: relative;
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-num span { font-size: 1.4rem; }
.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
}

/* ===== ABOUT SECTION ===== */
.about-card-icon {
  width: 56px; height: 56px;
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-primary);
  margin-bottom: 20px;
}
.about-card-title {
  font-size: 1.4rem;
  margin-bottom: 14px;
}
.about-card-text {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}
.about-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag {
  padding: 4px 14px;
  background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent-primary);
}

/* ===== COMMITTEE ===== */
.committee-group-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.committee-group-title::before {
  content: '';
  display: inline-block;
  width: 24px; height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.committee-card {
  display: flex; align-items: center; gap: 16px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: var(--transition);
  height: 100%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.committee-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 191, 255, 0.15);
}
.committee-avatar {
  width: 50px; height: 50px;
  background: linear-gradient(135deg, rgba(56,189,248,0.2), rgba(129,140,248,0.2));
  border: 1px solid rgba(56,189,248,0.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}
.student-avatar {
  background: linear-gradient(135deg, rgba(52,211,153,0.2), rgba(56,189,248,0.2));
  border-color: rgba(52,211,153,0.3);
  color: var(--accent-green);
}
.committee-info h5 { font-size: 1rem; margin-bottom: 4px; color: var(--text-primary); }
.committee-info p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

/* Advisory */
.advisory-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 28px;
  height: 100%;
  transition: var(--transition);
}
.advisory-panel:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}
.advisory-panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: center;
}
.advisory-list { list-style: none; padding: 0; margin: 0; }
.advisory-list li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.advisory-list li:last-child { border-bottom: none; }
.advisory-list li:hover { color: var(--text-primary); }
.advisory-list li i { color: var(--accent-primary); margin-top: 3px; flex-shrink: 0; }
.advisory-list li strong { color: var(--text-primary); }

/* ===== CALL FOR PAPERS ===== */
.cfp-intro {
  max-width: 820px;
  margin: 0 auto;
  padding: 44px;
}
.cfp-icon {
  font-size: 3rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 16px;
}
.cfp-intro-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

.topic-section-title {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.topic-card {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  height: 100%;
}
.topic-card i {
  font-size: 1.8rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.topic-card span {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.topic-card:hover {
  border-color: rgba(56,189,248,0.4);
  background: rgba(56,189,248,0.06);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(56,189,248,0.12);
}
.topic-card:hover span { color: var(--text-primary); }

/* ===== REGISTRATION / PRICING ===== */
.pricing-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 44px 34px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-card);
}
.pricing-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: var(--transition);
}
.pricing-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}
.pricing-card:hover::before { opacity: 1; }

.pricing-featured {
  border-color: rgba(56,189,248,0.35);
  background: rgba(56,189,248,0.06);
  transform: scale(1.03);
}
.pricing-featured::before { opacity: 1; }
.pricing-featured:hover { transform: scale(1.03) translateY(-6px); }

.pricing-popular-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--gradient-accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pricing-icon {
  font-size: 2.2rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.pricing-category {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0;
}
.pricing-header { margin-bottom: 24px; }
.pricing-body { flex: 1; margin-bottom: 28px; }

.price-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  gap: 12px;
}
.price-row:last-child { border-bottom: none; }
.price-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex; align-items: center; gap: 4px;
}
.price-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn-register {
  display: block; width: 100%;
  padding: 13px;
  background: transparent;
  border: 1.5px solid rgba(56,189,248,0.4);
  border-radius: 50px;
  color: var(--accent-primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition);
}
.btn-register:hover {
  background: rgba(56,189,248,0.12);
  border-color: var(--accent-primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-register-featured {
  display: block; width: 100%;
  padding: 13px;
  background: var(--gradient-accent);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(56,189,248,0.3);
}
.btn-register-featured:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(56,189,248,0.5);
  color: #fff;
}

.reg-note {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary), rgba(129,140,248,0.1));
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -40px; top: 0;
  width: 36px; height: 36px;
  background: linear-gradient(135deg, rgba(56,189,248,0.2), rgba(129,140,248,0.2));
  border: 2px solid rgba(56,189,248,0.5);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  color: var(--accent-primary);
  z-index: 1;
  transition: var(--transition);
}
.timeline-item:hover .timeline-dot {
  background: var(--gradient-accent);
  border-color: var(--accent-primary);
  color: #fff;
  box-shadow: 0 0 20px rgba(56,189,248,0.5);
}
.timeline-dot-conf {
  background: linear-gradient(135deg, rgba(245,158,11,0.2), rgba(249,115,22,0.2));
  border-color: rgba(245,158,11,0.5);
  color: var(--accent-gold);
  width: 42px; height: 42px;
  left: -43px;
  font-size: 1rem;
}

.timeline-content {
  box-shadow: var(--shadow-glow);
}
.timeline-date {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-primary);
  margin-bottom: 8px;
}
.conf-date { color: var(--accent-gold); }
.timeline-event {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.timeline-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* ===== VENUE ===== */
.venue-info-card { padding: 36px; }
.venue-icon {
  font-size: 2rem;
  color: var(--accent-primary);
  margin-bottom: 16px;
}
.venue-name {
  font-size: 1.3rem;
  margin-bottom: 10px;
}
.venue-address {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.venue-description {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 20px;
}
.venue-divider {
  border-color: var(--border-subtle);
  margin: 20px 0;
}
.venue-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.venue-feature {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.venue-feature i { color: var(--accent-primary); font-size: 1rem; flex-shrink: 0; }
.text-accent { color: var(--accent-primary); }
.map-wrapper {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  min-height: 380px;
}

/* ===== CONTACT ===== */
.contact-info-card { padding: 36px; }
.contact-form-card { padding: 36px; }
.contact-info-heading, .contact-form-heading {
  font-size: 1.25rem;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.contact-info-item {
  display: flex; gap: 16px;
  margin-bottom: 24px;
}
.contact-info-item:last-of-type { margin-bottom: 0; }
.contact-info-icon {
  width: 44px; height: 44px;
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}
.contact-info-item strong {
  display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-secondary); margin-bottom: 4px;
}
.contact-info-item p { color: var(--text-primary); margin: 0; font-size: 0.95rem; }
.contact-info-item a { color: var(--text-primary); }
.contact-info-item a:hover { color: var(--accent-primary); }

.contact-social { display: flex; gap: 12px; }
.social-icon {
  width: 40px; height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-icon:hover {
  background: rgba(56,189,248,0.1);
  border-color: rgba(56,189,248,0.3);
  color: var(--accent-primary);
  transform: translateY(-3px);
}

/* Form Controls */
.form-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.icac-input {
  background: rgba(255,255,255,0.04) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: 10px !important;
  color: var(--text-primary) !important;
  padding: 12px 16px !important;
  font-size: 0.95rem !important;
  transition: var(--transition) !important;
}
.icac-input:focus {
  background: rgba(255,255,255,0.07) !important;
  border-color: rgba(56,189,248,0.5) !important;
  box-shadow: 0 0 0 3px rgba(56,189,248,0.1) !important;
  outline: none !important;
}
.icac-input::placeholder { color: var(--text-muted) !important; }

.form-success {
  background: rgba(52,211,153,0.1);
  border: 1px solid rgba(52,211,153,0.3);
  border-radius: 10px;
  padding: 14px 18px;
  color: var(--accent-green);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ===== FOOTER ===== */
.site-footer {
  background: #060F1C;
  border-top: 1px solid var(--border-subtle);
}
.footer-top { padding: 60px 0 40px; }
.footer-brand { max-width: 320px; }
.footer-logo-badge {
  width: 52px; height: 52px;
  background: var(--gradient-accent);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.9rem;
  color: #fff;
  flex-shrink: 0;
}
.footer-logo-year {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  line-height: 1.1;
}
.footer-logo-sub {
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.footer-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.footer-heading {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex; align-items: center; gap: 6px;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent-primary); padding-left: 4px; }

.footer-contact-list { list-style: none; padding: 0; }
.footer-contact-list li {
  display: flex; align-items: flex-start; gap: 10px;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 12px;
  line-height: 1.5;
}
.footer-contact-list i { color: var(--accent-primary); margin-top: 2px; flex-shrink: 0; }
.footer-contact-list a { color: var(--text-muted); }
.footer-contact-list a:hover { color: var(--accent-primary); }

.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
  font-size: 0.83rem;
  color: var(--text-muted);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 46px; height: 46px;
  background: var(--gradient-accent);
  border: none; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  cursor: pointer;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(56,189,248,0.4);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(56,189,248,0.5); }

/* ===== PARTICLES ===== */
.particle {
  position: absolute;
  width: 3px; height: 3px;
  background: rgba(56,189,248,0.5);
  border-radius: 50%;
  animation: float linear infinite;
  pointer-events: none;
}
@keyframes float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 991.98px) {
  .section-pad { padding: 70px 0; }
  .navbar-collapse {
    background: rgba(10,25,47,0.97);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 16px;
    margin-top: 12px;
  }
  .timeline { padding-left: 32px; }
}

@media (max-width: 767.98px) {
  .section-pad { padding: 60px 0; }
  .glass-card { padding: 24px; }
  .hero-title { font-size: clamp(3.5rem, 15vw, 5rem); }
  .countdown-item { padding: 14px 18px; min-width: 72px; }
  .countdown-num { font-size: 1.8rem; }
  .countdown-sep { font-size: 1.8rem; margin-bottom: 18px; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .stat-item:last-child { border-bottom: none; }
  .pricing-featured { transform: none; }
  .pricing-featured:hover { transform: translateY(-6px); }
  .cfp-intro { padding: 28px; }
  .timeline { padding-left: 28px; }
  .venue-features { grid-template-columns: 1fr; }
  .contact-info-card, .contact-form-card { padding: 24px; }
}

@media (max-width: 575.98px) {
  .hero-meta .divider { display: none; }
  .hero-meta { flex-direction: column; }
  .countdown-wrapper { gap: 4px; }
  .countdown-sep { display: none; }
}

/* ===== ANNOUNCEMENT BAR ===== */
.announcement-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1100;
  background: linear-gradient(90deg, #0c2340, #0a3060, #0c2340);
  border-bottom: 1px solid rgba(56,189,248,0.3);
  height: 38px;
  display: flex; align-items: center; overflow: hidden;
}
.announcement-track {
  display: flex; align-items: center; gap: 32px;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  padding: 0 40px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.85);
}
.announcement-track:hover { animation-play-state: paused; }
.announcement-item { display: flex; align-items: center; gap: 8px; }
.announcement-item i { color: var(--accent-primary); }
.announcement-sep { color: rgba(56,189,248,0.4); }
.announcement-close {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  background: transparent; border: none; color: rgba(255,255,255,0.5);
  font-size: 1.1rem; cursor: pointer; padding: 4px 8px; z-index: 2;
  transition: var(--transition);
}
.announcement-close:hover { color: #fff; }
.announcement-bar.hidden { display: none; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Adjust navbar + hero for announcement bar */
body.has-announcement #mainNavbar { top: 38px; }
body.has-announcement .hero-section { padding-top: 160px; }

/* ===== NAVBAR NEW BUTTONS ===== */
.btn-brochure {
  padding: 7px 18px;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.35);
  border-radius: 50px;
  color: var(--accent-gold);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-display);
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex; align-items: center;
}
.btn-brochure:hover {
  background: rgba(245,158,11,0.2);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}
.btn-admin-nav {
  width: 36px; height: 36px;
  background: rgba(129,140,248,0.1);
  border: 1px solid rgba(129,140,248,0.3);
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent-secondary);
  font-size: 1rem;
  transition: var(--transition);
}
.btn-admin-nav:hover {
  background: rgba(129,140,248,0.2);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== LEADERSHIP SECTION ===== */
.leadership-section { background: var(--bg-primary); }
.leadership-grid { display: flex; flex-direction: column; gap: 16px; align-items: center; }
.leadership-row { width: 100%; display: flex; justify-content: center; gap: 16px; }
.leadership-row.two-col { flex-wrap: wrap; }
.leadership-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 30px;
  text-align: center;
  transition: var(--transition);
  min-width: 260px; max-width: 380px; flex: 1;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-card);
}
.leadership-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-accent);
  opacity: 0; transition: var(--transition);
}
.leadership-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}
.leadership-card:hover::before { opacity: 1; }
.leadership-card.chief-patron { border-color: rgba(245,158,11,0.35); }
.leadership-card.chief-patron::before { background: var(--gradient-gold); opacity: 1; }
.leadership-card.patron { border-color: rgba(56,189,248,0.3); }
.lc-role {
  font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--accent-primary); margin-bottom: 6px;
}
.leadership-card.chief-patron .lc-role { color: var(--accent-gold); }
.lc-name {
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 700;
  color: var(--text-primary); margin-bottom: 4px;
}
.lc-org { font-size: 0.82rem; color: var(--text-secondary); }

/* ===== PUB BADGES ===== */
.pub-badges { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.pub-badge {
  display: inline-flex; align-items: center;
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.5px;
}
.pub-badge.springer {
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.3);
  color: var(--accent-primary);
}
.pub-badge.scopus {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  color: var(--accent-gold);
}

@media (max-width: 767px) {
  .leadership-row.two-col { flex-direction: column; align-items: center; }
  .leadership-card { min-width: unset; width: 100%; max-width: 100%; }
  .announcement-bar { height: 34px; }
  body.has-announcement #mainNavbar { top: 34px; }
  body.has-announcement .hero-section { padding-top: 200px; }
}
/* ===== CAMPUS SHOWCASE SECTION ===== */
.campus-showcase-box {
  position: relative;
  padding-right: 20px; padding-bottom: 20px;
}
.campus-img-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 20px 20px 60px rgba(0,0,0,0.5);
  border: 1px solid var(--border-subtle);
}
.campus-main-img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.8s ease;
}
.campus-showcase-box:hover .campus-main-img { transform: scale(1.04); }
.img-overlay-accent {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(56,189,248,0.1), transparent 60%);
  pointer-events: none;
}
.campus-showcase-box::after {
  content: '';
  position: absolute; top: 30px; left: 30px; right: -15px; bottom: -15px;
  border: 2px solid var(--accent-primary);
  border-radius: 20px;
  z-index: -1;
  opacity: 0.3;
}

.campus-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.c-feat {
  display: flex; align-items: center; gap: 12px;
  padding: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}
.c-feat i {
  font-size: 1.25rem;
  color: var(--accent-primary);
}
.c-feat:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--accent-primary);
  transform: translateX(4px);
}

@media (max-width: 991px) {
  .campus-showcase-box { padding-right: 0; padding-bottom: 0; margin-bottom: 30px; }
  .campus-showcase-box::after { display: none; }
}

/* ===== COMMITTEE V2 STYLE ===== */
.committee-card-v2 {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 30px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.committee-card-v2:hover {
  transform: translateY(-10px);
  border-color: var(--accent-cyan);
  box-shadow: 0 15px 50px rgba(0, 191, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
}

.committee-card-v2.highlight {
  border-color: rgba(0, 191, 255, 0.3);
  background: linear-gradient(145deg, rgba(255,255,255,0.05), rgba(0,191,255,0.02));
}

.member-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.member-badge.chief {
  background: rgba(255, 122, 0, 0.15);
  color: #FF7A00;
}

.member-role {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.member-name {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #fff;
}

.member-designation {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

.section-divider-glow {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 191, 255, 0.3), transparent);
}

.category-header-small {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
  display: inline-block;
  position: relative;
}

.category-header-small::after {
  content: '';
  position: absolute; bottom: -8px; left: 20%; right: 20%; height: 2px; background: var(--accent-cyan); opacity: 0.5;
}

@media (max-width: 768px) {
  .committee-card-v2 { padding: 25px 20px; }
  .member-name { font-size: 1.15rem; }
}