:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(30, 41, 59, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.08);
    --accent: #3b82f6;
    --accent-bright: #60a5fa;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --accent-teal: #06b6d4;
    --accent-emerald: #10b981;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-heading: #e2e8f0;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.1);
    --max-width: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-bright); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-teal); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ── NAV ── */
.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 0 32px; height: 64px;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-brand .brand-icon {
    width: 36px; height: 36px; background: var(--accent);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 14px; color: #fff;
}
.nav-brand .brand-text { font-size: 18px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.5px; }
.nav-brand .brand-text span { color: var(--accent-bright); }
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-links a {
    padding: 8px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
    color: var(--text-secondary); transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); background: var(--bg-glass); }
.nav-cta {
    padding: 8px 20px; background: var(--accent); color: #fff !important;
    border-radius: var(--radius-sm); font-weight: 600; font-size: 14px;
}
.nav-cta:hover { background: var(--accent-bright); }

/* ── HERO ── */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    text-align: center; padding: 120px 24px 80px;
    position: relative; overflow: hidden;
    background: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 100%, rgba(6,182,212,0.05) 0%, transparent 50%),
                var(--bg-primary);
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px; pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.2);
    padding: 6px 16px; border-radius: 100px; font-size: 13px;
    color: var(--accent-bright); font-weight: 500; margin-bottom: 32px;
}
.hero-badge .pulse {
    width: 8px; height: 8px; background: var(--accent-emerald);
    border-radius: 50%; animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; line-height: 1.1;
    letter-spacing: -1.5px; margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-bright) 50%, var(--accent-teal) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 1.2rem; color: var(--text-secondary); max-width: 600px;
    margin: 0 auto 40px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius-sm); font-size: 15px;
    font-weight: 600; cursor: pointer; border: none; transition: all var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 20px rgba(59,130,246,0.3); }
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-2px); color: #fff; box-shadow: 0 8px 30px rgba(59,130,246,0.4); }
.btn-outline {
    background: transparent; color: var(--text-primary);
    border: 1px solid var(--border-glass);
}
.btn-outline:hover { background: var(--bg-glass); border-color: var(--accent); color: var(--accent-bright); }
.hero-stats {
    display: flex; justify-content: center; gap: 48px;
    margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--border-glass);
}
.stat { text-align: center; }
.stat-value { font-size: 2rem; font-weight: 800; color: var(--accent-bright); font-family: var(--font-mono); }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 1px; }

/* ── SECTIONS ── */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-label {
    font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px;
    color: var(--accent); margin-bottom: 16px;
}
.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800;
    letter-spacing: -1px; color: var(--text-heading); margin-bottom: 16px;
}
.section-desc { font-size: 1.05rem; color: var(--text-secondary); max-width: 650px; margin: 0 auto; }

/* ── CARDS ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.card {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 32px; transition: all var(--transition);
    position: relative; overflow: hidden;
}
.card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-teal));
    opacity: 0; transition: opacity var(--transition);
}
.card:hover { background: var(--bg-card-hover); border-color: rgba(59,130,246,0.15); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.card:hover::before { opacity: 1; }
.card-icon {
    width: 48px; height: 48px; border-radius: var(--radius); display: flex;
    align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px;
    background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.15);
}
.card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; color: var(--text-heading); }
.card p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; }

/* ── ABOUT / MISSION ── */
.about-section { background: var(--bg-secondary); border-top: 1px solid var(--border-glass); border-bottom: 1px solid var(--border-glass); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-text h2 { font-size: 2rem; font-weight: 800; letter-spacing: -1px; color: var(--text-heading); margin-bottom: 20px; }
.about-text p { color: var(--text-secondary); margin-bottom: 16px; line-height: 1.8; }
.about-text a.inline-link { color: var(--accent-bright); border-bottom: 1px solid rgba(59,130,246,0.3); }
.about-text a.inline-link:hover { border-color: var(--accent-bright); }
.about-visual {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 40px; position: relative;
}
.partners-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.partner-item {
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    border-radius: var(--radius); padding: 24px; text-align: center; transition: all var(--transition);
}
.partner-item:hover { border-color: rgba(59,130,246,0.2); background: var(--accent-glow); }
.partner-item strong { display: block; font-size: 1.1rem; color: var(--text-heading); margin-bottom: 4px; }
.partner-item span { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* ── EVENTS ── */
.events-section { background: var(--bg-primary); }
.event-card {
    display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center;
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 28px 32px; margin-bottom: 16px;
    transition: all var(--transition);
}
.event-card:hover { border-color: rgba(59,130,246,0.15); background: var(--bg-card-hover); }
.event-date {
    background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.15);
    border-radius: var(--radius); padding: 16px 20px; text-align: center; min-width: 80px;
}
.event-date .month { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-bright); }
.event-date .day { font-size: 1.8rem; font-weight: 800; color: var(--text-primary); line-height: 1.2; }
.event-info h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-heading); margin-bottom: 6px; }
.event-info .event-meta { font-size: 0.85rem; color: var(--text-muted); display: flex; gap: 16px; flex-wrap: wrap; }
.event-info .event-meta span { display: flex; align-items: center; gap: 4px; }
.event-tag {
    display: inline-block; padding: 4px 12px; border-radius: 100px;
    font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}
.tag-upcoming { background: rgba(16,185,129,0.1); color: var(--accent-emerald); border: 1px solid rgba(16,185,129,0.2); }
.tag-past { background: rgba(100,116,139,0.1); color: var(--text-muted); border: 1px solid rgba(100,116,139,0.2); }
.event-action .btn { padding: 10px 20px; font-size: 13px; white-space: nowrap; }

/* ── NEWS / NOTICES ── */
.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.news-card {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition);
}
.news-card:hover { transform: translateY(-4px); border-color: rgba(59,130,246,0.15); box-shadow: var(--shadow-glow); }
.news-card-img {
    height: 180px; background-size: cover; background-position: center;
    position: relative;
}
.news-card-img::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(10,14,26,0.9));
}
.news-card-body { padding: 24px; }
.news-card-body .news-date { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.news-card-body h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-heading); margin-bottom: 8px; line-height: 1.4; }
.news-card-body p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ── RESOURCES ── */
.resources-section { background: var(--bg-secondary); border-top: 1px solid var(--border-glass); }
.resource-item {
    display: flex; align-items: center; gap: 16px;
    padding: 16px 20px; border-radius: var(--radius-sm);
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    margin-bottom: 12px; transition: all var(--transition);
}
.resource-item:hover { background: var(--accent-glow); border-color: rgba(59,130,246,0.15); }
.resource-icon { font-size: 20px; width: 40px; text-align: center; }
.resource-info { flex: 1; }
.resource-info h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-heading); }
.resource-info p { font-size: 0.8rem; color: var(--text-muted); }

/* ── NEWSLETTER CTA ── */
.cta-section {
    padding: 80px 0; text-align: center;
    background: radial-gradient(ellipse at 50% 50%, rgba(59,130,246,0.08) 0%, transparent 70%), var(--bg-primary);
}
.cta-box {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 60px 40px; max-width: 600px; margin: 0 auto;
}
.cta-box h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; color: var(--text-heading); }
.cta-box p { color: var(--text-secondary); margin-bottom: 28px; }
.cta-form { display: flex; gap: 12px; max-width: 420px; margin: 0 auto; }
.cta-form input {
    flex: 1; padding: 12px 16px; background: var(--bg-primary); border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm); color: var(--text-primary); font-size: 14px;
    font-family: var(--font-sans); outline: none; transition: border-color var(--transition);
}
.cta-form input:focus { border-color: var(--accent); }
.cta-form input::placeholder { color: var(--text-muted); }

/* ── FOOTER ── */
.site-footer {
    background: var(--bg-secondary); border-top: 1px solid var(--border-glass);
    padding: 60px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .brand-text { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.footer-brand .brand-text span { color: var(--accent-bright); }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; max-width: 280px; }
.footer-col h4 {
    font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px;
    color: var(--text-muted); margin-bottom: 20px;
}
.footer-col a { display: block; color: var(--text-secondary); font-size: 0.9rem; padding: 6px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
    padding-top: 24px; border-top: 1px solid var(--border-glass);
    display: flex; justify-content: space-between; align-items: center;
    font-size: 0.8rem; color: var(--text-muted);
}
.footer-badges { display: flex; gap: 12px; }
.footer-badge {
    padding: 4px 12px; border: 1px solid var(--border-glass); border-radius: 100px;
    font-size: 11px; font-weight: 500; color: var(--text-muted);
}

/* ── MEETING PAGE ── */
.meeting-hero {
    min-height: 70vh; display: flex; align-items: center;
    padding: 120px 0 80px; position: relative;
    background: radial-gradient(ellipse at 30% 20%, rgba(59,130,246,0.1) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(6,182,212,0.06) 0%, transparent 50%),
                var(--bg-primary);
}
.meeting-hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px; pointer-events: none;
}
.meeting-hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.meeting-info .meeting-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.2); padding: 6px 16px; border-radius: 100px; font-size: 13px; color: var(--accent-emerald); font-weight: 600; margin-bottom: 24px; }
.meeting-info h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.1; letter-spacing: -1px; color: var(--text-heading); margin-bottom: 24px; }
.meeting-info h1 .highlight { color: var(--accent-bright); }
.meeting-details { list-style: none; margin-bottom: 32px; }
.meeting-details li { display: flex; align-items: center; gap: 12px; padding: 8px 0; color: var(--text-secondary); font-size: 1rem; }
.meeting-details .detail-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: var(--accent-glow); border-radius: var(--radius-sm); font-size: 16px; }
.meeting-visual {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4/3;
}
.meeting-visual img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; }
.meeting-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── MEETING REG FORM ── */
.reg-section { background: var(--bg-secondary); border-top: 1px solid var(--border-glass); padding: 80px 0; }
.reg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.reg-info h2 { font-size: 1.8rem; font-weight: 800; color: var(--text-heading); margin-bottom: 16px; }
.reg-info p { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.8; }
.reg-info .info-box {
    background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.15);
    border-radius: var(--radius); padding: 24px; font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7;
}
.reg-info .info-box strong { color: var(--accent-bright); }
.reg-form-card {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 40px;
}
.reg-form-card h3 { font-size: 1.3rem; font-weight: 700; color: var(--text-heading); margin-bottom: 28px; text-align: center; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input[type="text"],
.form-group input[type="email"] {
    width: 100%; padding: 12px 16px; background: var(--bg-primary);
    border: 1px solid var(--border-glass); border-radius: var(--radius-sm);
    color: var(--text-primary); font-size: 14px; font-family: var(--font-sans);
    outline: none; transition: border-color var(--transition);
}
.form-group input:focus { border-color: var(--accent); }
.radio-group { margin-bottom: 20px; }
.radio-group p { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.radio-option { display: flex; align-items: center; gap: 10px; padding: 6px 0; color: var(--text-secondary); font-size: 14px; cursor: pointer; }
.radio-option input[type="radio"] { accent-color: var(--accent); width: 16px; height: 16px; }

/* ── EVENTS PAGE ── */
.page-header {
    padding: 140px 0 60px; text-align: center;
    background: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 60%), var(--bg-primary);
}
.page-header h1 { font-size: 2.5rem; font-weight: 800; color: var(--text-heading); letter-spacing: -1px; margin-bottom: 12px; }
.page-header p { color: var(--text-secondary); font-size: 1.1rem; }

/* ── RESOURCES PAGE ── */
.resource-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.resource-card {
    background: var(--bg-card); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 32px; transition: all var(--transition);
}
.resource-card:hover { border-color: rgba(59,130,246,0.15); background: var(--bg-card-hover); transform: translateY(-2px); }
.resource-card .rc-type { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin-bottom: 12px; }
.resource-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-heading); margin-bottom: 8px; }
.resource-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.6; }
.resource-card .rc-link { font-size: 13px; font-weight: 600; color: var(--accent-bright); display: inline-flex; align-items: center; gap: 4px; }
.resource-card .rc-link:hover { color: var(--accent-teal); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .about-grid, .reg-grid, .meeting-hero .container { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .site-nav { padding: 0 16px; }
    .nav-links { display: none; }
    .hero { padding: 100px 16px 60px; }
    .hero-stats { flex-direction: column; gap: 24px; }
    .card-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .event-card { grid-template-columns: 1fr; }
    .meeting-hero .container { grid-template-columns: 1fr; gap: 40px; }
}


/* ── INFO POPUP / TOOLTIP SYSTEM ── */
.info-link {
  color: var(--accent-bright);
  cursor: pointer;
  border-bottom: 1px dotted rgba(59,130,246,0.4);
  transition: all var(--transition);
  position: relative;
  text-decoration: none;
}
.info-link:hover {
  color: var(--accent-teal);
  border-bottom-color: var(--accent-teal);
}
.info-link::after {
  content: '\2139';
  font-size: 10px;
  vertical-align: super;
  margin-left: 2px;
  opacity: 0.6;
}

/* Popup overlay */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.popup-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Popup card */
.info-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: 9999;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 0;
  max-width: 520px;
  width: calc(100% - 40px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.info-popup.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border-glass);
  background: rgba(59,130,246,0.03);
}
.popup-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 8px;
}
.popup-header h3 .popup-icon {
  font-size: 20px;
}
.popup-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 18px;
  transition: all var(--transition);
  line-height: 1;
}
.popup-close:hover {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.3);
  color: var(--danger);
}

.popup-body {
  padding: 20px 24px;
  max-height: 400px;
  overflow-y: auto;
}
.popup-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}
.popup-body p:last-child {
  margin-bottom: 0;
}
.popup-body .popup-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-glass);
}
.popup-body .popup-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--accent-glow);
  border: 1px solid rgba(59,130,246,0.15);
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 11px;
  color: var(--accent-bright);
  font-weight: 500;
}

.popup-footer {
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border-glass);
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.popup-footer .btn {
  padding: 10px 20px;
  font-size: 13px;
}
.popup-footer .popup-source {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: auto;
}

/* ── EVENT DETAIL POPUP ── */
.popup-body .event-detail-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  margin: 16px 0;
  font-size: 0.9rem;
}
.popup-body .event-detail-grid dt {
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
  padding-top: 2px;
}
.popup-body .event-detail-grid dd {
  color: var(--text-secondary);
}
.popup-body .event-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.popup-body .event-topic-tag {
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.2);
  color: var(--accent-teal);
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
}

/* ── ENHANCED EVENT CARDS ── */
.event-card-enhanced {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 0;
  margin-bottom: 20px;
  transition: all var(--transition);
  overflow: hidden;
}
.event-card-enhanced:hover {
  border-color: rgba(59,130,246,0.15);
  box-shadow: var(--shadow-glow);
}
.event-card-enhanced .event-card-main {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 24px;
  align-items: start;
  padding: 28px 32px;
  cursor: pointer;
}
.event-card-enhanced .event-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}
.event-card-enhanced .event-info .event-org {
  font-size: 0.85rem;
  color: var(--accent-bright);
  font-weight: 500;
  margin-bottom: 6px;
}
.event-card-enhanced .event-info .event-desc-brief {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.event-card-enhanced .event-info .event-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.e-tag {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid;
}
.e-tag.satellite { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.2); color: var(--accent-bright); }
.e-tag.sar { background: rgba(168,85,247,0.1); border-color: rgba(168,85,247,0.2); color: #a855f7; }
.e-tag.lidar { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.2); color: var(--accent-emerald); }
.e-tag.disaster { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.2); color: var(--danger); }
.e-tag.ai { background: rgba(6,182,212,0.1); border-color: rgba(6,182,212,0.2); color: var(--accent-teal); }
.e-tag.climate { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.2); color: var(--warning); }
.e-tag.conference { background: rgba(100,116,139,0.1); border-color: rgba(100,116,139,0.2); color: var(--text-secondary); }
.e-tag.webinar { background: rgba(34,211,238,0.1); border-color: rgba(34,211,238,0.2); color: #22d3ee; }
.e-tag.government { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.2); color: var(--accent-bright); }
.e-tag.free { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.2); color: var(--accent-emerald); }

.event-card-enhanced .event-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.event-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}
.event-detail-btn:hover {
  background: rgba(59,130,246,0.15);
  border-color: rgba(59,130,246,0.3);
}

.tag-planned { background: rgba(245,158,11,0.1); color: var(--warning); border: 1px solid rgba(245,158,11,0.2); }
.tag-redicop { background: rgba(59,130,246,0.1); color: var(--accent-bright); border: 1px solid rgba(59,130,246,0.2); }
.tag-external { background: rgba(6,182,212,0.1); color: var(--accent-teal); border: 1px solid rgba(6,182,212,0.2); }

.popup-body::-webkit-scrollbar { width: 6px; }
.popup-body::-webkit-scrollbar-track { background: transparent; }
.popup-body::-webkit-scrollbar-thumb { background: var(--border-glass); border-radius: 3px; }
.popup-body::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

.year-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 48px 0 24px;
}
.year-divider .year-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  white-space: nowrap;
}
.year-divider .year-line {
  flex: 1;
  height: 1px;
  background: var(--border-glass);
}

.event-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  justify-content: center;
}
.filter-btn {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  color: var(--accent-bright);
  background: var(--accent-glow);
  border-color: rgba(59,130,246,0.2);
}

@media (max-width: 768px) {
  .event-card-enhanced .event-card-main {
    grid-template-columns: 1fr;
    padding: 20px;
  }
  .event-card-enhanced .event-actions {
    flex-direction: row;
    align-items: center;
  }
  .info-popup {
    max-width: 95%;
    max-height: 90vh;
  }
  .popup-body {
    max-height: 50vh;
  }
}