/* ============================================================
   ICSSES 2026 – Redesigned Stylesheet
   Theme: Vibrant White + Deep Navy + Electric Blue Accents
   ============================================================ */

:root {
  --navy:       #0f1f4b;
  --navy-deep:  #081036;
  --blue:       #1d4ed8;
  --blue-mid:   #2563eb;
  --blue-light: #3b82f6;
  --sky:        #0ea5e9;
  --cyan:       #06b6d4;
  --gold:       #f59e0b;
  --orange:     #f97316;
  --green:      #10b981;
  --purple:     #7c3aed;

  --bg:         #f0f4ff;
  --bg2:        #ffffff;
  --bg3:        #e8effe;
  --surface:    #ffffff;

  --text:       #0f172a;
  --text-mid:   #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --white:      #ffffff;

  --border:     #dbeafe;
  --border2:    #bfdbfe;

  --font-display: 'Outfit', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius:    14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(15,31,75,0.08);
  --shadow:    0 8px 32px rgba(15,31,75,0.12);
  --shadow-lg: 0 20px 60px rgba(15,31,75,0.18);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-light); }

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 6rem;
}
.circle-image {
  width: 150px;      /* Set equal width and height */
  height: 150px;     /* to ensure a perfect circle */
  border-radius: 80%; /* Rounds the corners into a circle */
  object-fit: cover; /* Ensures the image covers the container without distortion */
}
.square-container {
  width: 100%; /* Responsive width */
  max-width: 200px; /* Optional cap */
  aspect-ratio: 1 / 1; /* Forces square shape */
  overflow: hidden; /* Ensures image doesn't overflow */
}

.square-container img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Crops image to fit the square */
}


/* ============================
   GOOGLE FONTS IMPORT
   ============================ */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;600;700;800;900&family=JetBrains+Mono:wght@400;600&display=swap');

/* ============================
   TOP BAR
   ============================ */
.topbar {
  background: linear-gradient(90deg, var(--navy-deep) 0%, var(--navy) 60%, #1a2d6b 100%);
  color: #93c5fd;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  padding: 0.5rem 0;
  letter-spacing: 0.02em;
}
.topbar-inner { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.topbar strong { color: #fff; }
.topbar .sep { opacity: 0.3; }

/* ============================
   NAVBAR
   ============================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 2px solid var(--border);
  padding: 0.8rem 0;
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(15,31,75,0.12); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: baseline; gap: 0.3rem; text-decoration: none; }
.logo-icsses {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.03em;
}
.logo-year {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--blue-mid);
  background: #dbeafe;
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
}
.nav-menu { display: flex; align-items: center; gap: 0.1rem; list-style: none; }
.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  transition: all var(--transition);
  text-decoration: none;
}
.nav-link:hover { color: var(--blue); background: #eff6ff; }
.nav-link.active { color: var(--blue); background: #dbeafe; }
.btn-nav { font-size: 0.82rem !important; padding: 0.5rem 1.2rem !important; margin-left: 0.5rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--navy);
  border-radius: 3px;
  transition: all 0.3s;
}

/* ============================
   BUTTONS
   ============================ */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.75rem 1.8rem;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  border: none;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue-mid), var(--blue));
  color: #fff;
  box-shadow: 0 4px 16px rgba(29,78,216,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: #fff;
  box-shadow: 0 8px 24px rgba(29,78,216,0.45);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue-mid);
}
.btn-outline:hover {
  background: var(--blue-mid);
  color: #fff;
  transform: translateY(-2px);
}
.btn-white {
  background: #fff;
  color: var(--navy);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.btn-white:hover { background: #f0f4ff; color: var(--blue); transform: translateY(-2px); }
.btn-sm { font-size: 0.82rem; padding: 0.5rem 1.2rem; border-radius: 8px; }

/* ============================
   HERO
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 6rem 0 4rem;
  background: linear-gradient(135deg, var(--navy-deep) 0%, #122270 40%, #1a3a8f 70%, #0f4c81 100%);
}
.hero-bg-anim { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
  animation: blobFloat 10s ease-in-out infinite;
}
.hero-blob-1 { width: 700px; height: 700px; background: radial-gradient(circle, #3b82f6, transparent 70%); top: -200px; right: -150px; }
.hero-blob-2 { width: 500px; height: 500px; background: radial-gradient(circle, #06b6d4, transparent 70%); bottom: -100px; left: -100px; opacity: 0.3; animation-delay: 4s; }
.hero-blob-3 { width: 280px; height: 280px; background: radial-gradient(circle, #7c3aed, transparent 70%); top: 30%; left: 20%; opacity: 0.18; animation-delay: 7s; }
@keyframes blobFloat {
  0%, 100% { transform: scale(1) translate(0,0); }
  33% { transform: scale(1.08) translate(20px,-20px); }
  66% { transform: scale(0.95) translate(-10px,15px); }
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 50px 50px;
}

/* Floating badges on hero */
.hero-float {
  position: absolute;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 16px;
  padding: 0.8rem 1.2rem;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-mono);
  animation: floatUp 6s ease-in-out infinite;
}
.hf-1 { top: 20%; right: 7%; }
.hf-2 { bottom: 28%; right: 11%; animation-delay: 2s; }
.hf-3 { top: 58%; right: 4%; animation-delay: 4s; }
@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero .container { position: relative; z-index: 1; }
.hero-inner { max-width: 700px; }

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #bfdbfe;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.dot {
  width: 7px; height: 7px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 8px #34d399;
  animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 6.5rem);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: #fff;
  margin-bottom: 1rem;
}
.hero-title .line1 {
  display: block;
  background: linear-gradient(135deg, #ffffff 0%, #93c5fd 60%, #67e8f9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.year-badge {
  display: inline-block;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  background: linear-gradient(135deg, #fbbf24, #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 0.2rem;
}
.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: rgba(255,255,255,0.72);
  margin-bottom: 1.8rem;
  line-height: 1.65;
}
.hero-subtitle strong { color: #fff; font-weight: 600; }
.hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}
.meta-item { display: flex; align-items: center; gap: 0.4rem; }
.meta-sep { opacity: 0.25; font-size: 1.2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.ieee-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(245,158,11,0.14);
  border: 1px solid rgba(245,158,11,0.35);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  font-size: 0.76rem;
  color: #fde68a;
  font-family: var(--font-mono);
}
.ieee-name { font-weight: 700; }
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font-size: 0.66rem;
  color: rgba(255,255,255,0.35);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.animate-fadein { opacity:0; transform:translateY(24px); animation: fadeUp 0.7s ease forwards; }
.delay-1{animation-delay:0.1s} .delay-2{animation-delay:0.22s}
.delay-3{animation-delay:0.36s} .delay-4{animation-delay:0.52s} .delay-5{animation-delay:0.68s}
@keyframes fadeUp { to { opacity:1; transform:translateY(0); } }

/* ============================
   COUNTDOWN
   ============================ */
.countdown-section {
  background: var(--navy);
  padding: 2.5rem 0;
  text-align: center;
}
.countdown-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: #93c5fd;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.countdown { display: flex; align-items: center; justify-content: center; gap: 0.8rem; flex-wrap: wrap; }
.count-block {
  display: flex; flex-direction: column; align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 1rem 1.5rem; min-width: 90px;
}
.count-num {
  font-family: var(--font-display);
  font-size: 2.8rem; font-weight: 900;
  color: #fff; line-height: 1; letter-spacing: -0.03em;
}
.count-unit {
  font-size: 0.62rem; color: #93c5fd;
  text-transform: uppercase; letter-spacing: 0.12em;
  margin-top: 0.3rem; font-family: var(--font-mono);
}
.count-sep { font-family: var(--font-display); font-size: 2rem; color: rgba(255,255,255,0.25); margin-bottom: 1.5rem; }

/* ============================
   SECTIONS
   ============================ */
.section { padding: 5rem 0; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--blue-mid);
  background: #dbeafe;
  padding: 0.3rem 0.9rem;
  border-radius: 100px;
  margin-bottom: 1rem;
  font-weight: 600;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}
.section-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ============================
   ABOUT
   ============================ */
.about-section { background: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.about-text .lead { font-size: 1.08rem; color: var(--navy); margin-bottom: 1rem; line-height: 1.7; font-weight: 500; }
.about-text p { color: var(--text-muted); margin-bottom: 1rem; }
.about-highlights { display: flex; gap: 2.5rem; margin-top: 2.5rem; flex-wrap: wrap; }
.highlight { display: flex; flex-direction: column; gap: 0.2rem; }
.h-num { font-family: var(--font-display); font-size: 2.8rem; font-weight: 900; color: var(--blue-mid); line-height: 1; letter-spacing: -0.04em; }
.h-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }
.about-card { }
.about-info-card {
  background: linear-gradient(135deg, var(--navy-deep) 0%, #122270 100%);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex; flex-direction: column; gap: 1.5rem;
  box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.about-info-card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(59,130,246,0.25), transparent 70%);
  border-radius: 50%;
}
.info-row { display: flex; gap: 1rem; align-items: flex-start; position: relative; }
.info-icon { font-size: 1.5rem; flex-shrink: 0; }
.info-row strong { display: block; color: #fff; margin-bottom: 0.2rem; font-size: 0.95rem; }
.info-row p { font-size: 0.82rem; color: #93c5fd; margin: 0; }

/* ============================
   TRACKS
   ============================ */
.tracks-section { background: var(--bg); }
.tracks-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.2rem; }
.track-card {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.track-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-mid), var(--cyan));
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition);
}
.track-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow); transform: translateY(-4px); }
.track-card:hover::after { transform: scaleX(1); }
.track-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.track-num { font-family: var(--font-mono); font-size: 0.68rem; color: var(--blue-mid); background: #dbeafe; padding: 0.2rem 0.6rem; border-radius: 4px; font-weight: 600; }
.track-icon { font-size: 2rem; }
.track-card h3 { font-family: var(--font-display); font-size: 0.98rem; font-weight: 700; color: var(--navy); margin-bottom: 0.6rem; line-height: 1.3; }
.track-card p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.55; }
.tracks-footer { text-align: center; margin-top: 2.5rem; }

/* ============================
   TIMELINE
   ============================ */
.timeline-section { background: linear-gradient(135deg, var(--navy-deep) 0%, #122270 100%); }
.timeline-section .section-header .section-tag { background: rgba(255,255,255,0.1); color: #93c5fd; }
.timeline-section .section-header h2 { color: #fff; }
.timeline { max-width: 720px; margin: 0 auto; position: relative; }
.timeline::before {
  content: '';
  position: absolute; left: 130px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.2), rgba(59,130,246,0.5), rgba(255,255,255,0.2), transparent);
}
.tl-item { display: flex; align-items: center; gap: 1.5rem; padding: 0.55rem 0; position: relative; }
.tl-dot {
  position: absolute; left: 123px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--navy); border: 3px solid rgba(255,255,255,0.2);
  flex-shrink: 0; transition: all 0.3s;
}
.tl-conference .tl-dot { background: var(--gold); border-color: var(--gold); box-shadow: 0 0 20px rgba(245,158,11,0.7); width: 20px; height: 20px; left: 121px; }
.tl-content {
  display: flex; align-items: center; gap: 1.5rem; flex: 1;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem 1rem calc(9rem + 16px); margin-left: -9rem;
  transition: all 0.3s;
}
.tl-item:hover .tl-content { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }
.tl-item:hover .tl-dot { border-color: var(--sky); background: var(--sky); }
.tl-date { font-family: var(--font-mono); font-size: 0.73rem; color: #93c5fd; white-space: nowrap; min-width: 100px; }
.tl-event { font-weight: 600; color: #fff; font-size: 0.95rem; }
.tl-conference .tl-date { color: #fde68a; }
.tl-conference .tl-content { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.35); }

/* ============================
   COMMITTEE TEASER
   ============================ */
.committee-teaser { background: #fff; }
.leaders-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 1.2rem; }
.leader-card {
  background: var(--bg); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; transition: all var(--transition);
}
.leader-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow); transform: translateY(-2px); }
.leader-card.chief { background: linear-gradient(135deg, #eff6ff, #e0f2fe); border-color: var(--border2); }
.leader-role { font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue-mid); font-weight: 600; margin-bottom: 0.5rem; }
.leader-name { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.3rem; }
.leader-org { font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }

/* ============================
   VENUE
   ============================ */
.venue-section { background: var(--bg); }
.venue-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.venue-info h3 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; color: var(--navy); margin-bottom: 0.5rem; letter-spacing: -0.02em; }
.venue-address { color: var(--text-muted); font-size: 1rem; margin-bottom: 1rem; }
.venue-badges { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.v-badge { background: #fef3c7; border: 1px solid #fcd34d; color: #92400e; font-size: 0.68rem; padding: 0.25rem 0.7rem; border-radius: 100px; font-weight: 700; font-family: var(--font-mono); }
.venue-info p { color: var(--text-muted); margin-bottom: 1.5rem; }
.map-placeholder {
  background: linear-gradient(135deg, #eff6ff, #e0f2fe);
  border: 2px solid var(--border2); border-radius: var(--radius-lg);
  padding: 3rem 2rem; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
}
.map-pin { font-size: 3.5rem; }
.map-placeholder p { color: var(--text-mid); font-weight: 500; }
.map-link {
  display: inline-block; background: var(--blue-mid); color: white;
  padding: 0.55rem 1.4rem; border-radius: 8px; font-size: 0.85rem; font-weight: 700;
  text-decoration: none; margin-top: 0.5rem; transition: all var(--transition);
}
.map-link:hover { background: var(--blue); color: white; transform: translateY(-1px); }

/* ============================
   FOOTER
   ============================ */
.footer {
  background: linear-gradient(135deg, var(--navy-deep) 0%, #0d1a45 100%);
  padding: 4rem 0 2rem;
  position: relative; overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--purple), var(--blue));
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr 1.5fr; gap: 3rem; margin-bottom: 3rem; }
.footer-logo { display: flex; align-items: baseline; gap: 0.3rem; margin-bottom: 1rem; }
.footer-logo .logo-icsses { color: #fff; }
.footer-logo .logo-year { background: rgba(59,130,246,0.2); color: #93c5fd; }
.footer-brand p { font-size: 0.85rem; color: #94a3b8; margin-bottom: 0.5rem; }
.footer-date { color: #93c5fd !important; font-family: var(--font-mono); font-size: 0.82rem !important; }
.footer-col h4 { font-family: var(--font-display); font-size: 0.9rem; font-weight: 700; color: #fff; margin-bottom: 1.2rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col ul li a { color: #94a3b8; font-size: 0.85rem; transition: color 0.2s; }
.footer-col ul li a:hover { color: #93c5fd; }
.footer-dates { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-dates li { display: flex; flex-direction: column; gap: 0.1rem; }
.fd-date { font-family: var(--font-mono); font-size: 0.7rem; color: #93c5fd; }
.fd-event { font-size: 0.82rem; color: #94a3b8; }
address { font-style: normal; font-size: 0.82rem; color: #94a3b8; line-height: 1.7; }
address strong { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 1.5rem; display: flex; flex-direction: column; align-items: center; gap: 0.6rem; }
.footer-ieee { display: flex; gap: 0.8rem; align-items: center; font-family: var(--font-mono); font-size: 0.72rem; color: #93c5fd; }
.footer-ieee .sep { opacity: 0.3; }
.footer-copy { font-size: 0.72rem; color: #64748b; text-align: center; }

/* ============================
   PAGE HERO (inner pages)
   ============================ */
.page-hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, #122270 50%, #1a3a8f 100%);
  padding: 5rem 0 3.5rem; position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.page-hero::after {
  content: '';
  position: absolute; top: -100px; right: -100px;
  width: 450px; height: 450px;
  background: radial-gradient(circle, rgba(59,130,246,0.2), transparent 70%);
  border-radius: 50%;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .section-tag { background: rgba(255,255,255,0.1); color: #bfdbfe; }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3rem); font-weight: 900; color: #fff; letter-spacing: -0.03em; margin: 0.5rem 0; }
.page-hero p { color: rgba(255,255,255,0.68); font-size: 1rem; max-width: 600px; }

/* ============================
   COMMITTEE PAGE
   ============================ */
.committee-section { background: var(--bg); padding: 4rem 0; }
.committee-block { margin-bottom: 3rem; }
.committee-block h2 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 800; color: var(--navy);
  margin-bottom: 1.5rem; padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border);
  display: flex; align-items: center; gap: 0.7rem;
}
.members-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.member-card {
  background: #fff; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 1.2rem 1.5rem; transition: all var(--transition);
}
.member-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.member-name { font-weight: 700; color: var(--navy); font-size: 0.95rem; margin-bottom: 0.2rem; }
.member-org { font-size: 0.8rem; color: var(--text-muted); }
.single-member {
  background: linear-gradient(135deg, #eff6ff, #e0f2fe);
  border: 2px solid var(--border2); border-radius: var(--radius);
  padding: 1.5rem 2rem; max-width: 600px;
}
.single-member .member-name { font-size: 1.1rem; }

/* ============================
   CFP PAGE
   ============================ */
.cfp-content { background: var(--bg); padding: 4rem 0; }
.cfp-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; align-items: start; }
.cfp-main h3 {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 800; color: var(--navy);
  margin: 2rem 0 0.8rem; padding-left: 0.8rem;
  border-left: 3px solid var(--blue-mid);
}
.cfp-main h3:first-child { margin-top: 0; }
.cfp-main > p { color: var(--text-muted); margin-bottom: 1rem; }
.cfp-main ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
.cfp-main ul li {
  padding: 0.65rem 1rem; background: #fff;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-mid); font-size: 0.87rem;
  display: flex; align-items: center; gap: 0.7rem;
  transition: all var(--transition);
}
.cfp-main ul li:hover { border-color: var(--blue-light); color: var(--navy); }
.cfp-main ul li::before { content: '→'; color: var(--blue-mid); font-weight: 700; flex-shrink: 0; }
.cfp-sidebar { position: sticky; top: 5rem; }
.sidebar-card {
  background: #fff; border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.2rem; box-shadow: var(--shadow-sm);
}
.sidebar-card h4 { font-family: var(--font-display); font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 1rem; }
.sidebar-dates { display: flex; flex-direction: column; gap: 0.8rem; }
.sd-item { display: flex; flex-direction: column; gap: 0.1rem; }
.sd-date { font-family: var(--font-mono); font-size: 0.72rem; color: var(--blue-mid); font-weight: 600; }
.sd-event { font-size: 0.85rem; color: var(--text-mid); font-weight: 500; }
.submit-card {
  background: linear-gradient(135deg, var(--navy-deep), #122270);
  border-radius: var(--radius); padding: 1.8rem; text-align: center; box-shadow: var(--shadow);
}
.submit-card h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 800; color: #fff; margin-bottom: 0.5rem; }
.submit-card p { font-size: 0.8rem; color: #93c5fd; margin-bottom: 1.2rem; }

/* ============================
   REGISTRATION PAGE
   ============================ */
.reg-content { background: var(--bg); padding: 4rem 0; }
.reg-cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 1.5rem; margin: 2.5rem 0; }
.reg-card {
  background: #fff; border: 2px solid var(--border);
  border-radius: var(--radius); padding: 2rem; text-align: center;
  transition: all var(--transition); position: relative;
}
.reg-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow); transform: translateY(-4px); }
.reg-card.featured { border-color: var(--blue-mid); background: linear-gradient(135deg, #eff6ff, #dbeafe); }
.featured-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--blue-mid); color: white; font-size: 0.6rem; font-weight: 800;
  padding: 0.3rem 0.9rem; border-radius: 100px; letter-spacing: 0.08em;
  text-transform: uppercase; font-family: var(--font-mono); white-space: nowrap;
}
.reg-cat { font-family: var(--font-mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue-mid); margin-bottom: 0.4rem; font-weight: 600; }
.reg-type { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 1rem; }
.reg-price { font-family: var(--font-display); font-size: 2.2rem; font-weight: 900; color: var(--blue); letter-spacing: -0.03em; }
.reg-currency { font-size: 1.2rem; vertical-align: super; }
.reg-note { font-size: 0.72rem; color: var(--text-light); margin-top: 0.5rem; }
.reg-note-box { background: #fffbeb; border: 1.5px solid #fcd34d; border-radius: var(--radius-sm); padding: 1rem 1.5rem; color: var(--text-mid); font-size: 0.87rem; }

/* ============================
   CONTACT PAGE
   ============================ */
.contact-content { background: var(--bg); padding: 4rem 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.contact-info h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 800; color: var(--navy); margin-bottom: 1.5rem; }
.contact-card { background: #fff; border: 1.5px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.2rem; box-shadow: var(--shadow-sm); }
.contact-card h4 { font-size: 0.7rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue-mid); margin-bottom: 0.8rem; font-weight: 700; }
.contact-card address { font-style: normal; color: var(--text-muted); font-size: 0.88rem; line-height: 1.7; }
.contact-card address strong { color: var(--navy); }
.contact-form-area h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 800; color: var(--navy); margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.82rem; color: var(--text-mid); margin-bottom: 0.4rem; font-weight: 600; }
.form-control {
  width: 100%; background: #fff; border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm); padding: 0.75rem 1rem; color: var(--text);
  font-size: 0.9rem; font-family: var(--font-body); transition: border-color var(--transition); outline: none;
}
.form-control:focus { border-color: var(--blue-mid); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
textarea.form-control { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ============================
   VENUE PAGE
   ============================ */
.venue-content { background: var(--bg); padding: 4rem 0; }
.venue-full-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.how-to-reach h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--navy); margin: 1.5rem 0 0.8rem; }
.how-to-reach h3:first-child { margin-top: 0; }
.reach-item {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1rem 1.2rem; background: #fff;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 0.8rem;
  transition: all var(--transition);
}
.reach-item:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); }
.reach-icon { font-size: 1.4rem; flex-shrink: 0; }
.reach-item strong { display: block; color: var(--navy); margin-bottom: 0.2rem; font-size: 0.9rem; font-weight: 700; }
.reach-item p { font-size: 0.82rem; color: var(--text-muted); margin: 0; }

/* ============================
   SCROLL REVEAL
   ============================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 900px) {
  .about-grid, .venue-grid, .venue-full-grid, .cfp-grid, .contact-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 0; }
  .tl-content { padding-left: 1.5rem; margin-left: 1.5rem; }
  .tl-dot { left: -8px; }
  .cfp-sidebar { position: static; }
}
@media (max-width: 768px) {
  .nav-menu {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; align-items: center;
    gap: 1.5rem; z-index: 999;
  }
  .nav-menu.open { display: flex; }
  .nav-link { font-size: 1.2rem; padding: 0.6rem 1.5rem; }
  .nav-toggle { display: flex; z-index: 1000; }
  .hero-meta { flex-direction: column; align-items: flex-start; }
  .meta-sep { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-float { display: none; }
  .reg-cards-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .hero { padding: 5rem 0 3rem; }
  .count-block { padding: 0.7rem 0.8rem; min-width: 70px; }
  .count-num { font-size: 2rem; }
  .reg-cards-grid { grid-template-columns: 1fr; }
  .members-grid { grid-template-columns: 1fr; }
}