@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* Core academic palette */
    --primary: #0f2c52;          /* Deep academic navy */
    --primary-700: #163b6c;
    --primary-50: #eaf1fb;

    /* Research / AI accents */
    --accent: #2563eb;           /* Research blue */
    --accent-700: #1d4ed8;
    --accent-50: #eff6ff;
    --ai: #0891b2;               /* Cyan — AI / tech */
    --ai-50: #ecfeff;
    --highlight: #d97706;        /* Warm amber for CTAs / dates */
    --highlight-50: #fffbeb;

    /* Neutral surfaces */
    --bg: #f7f9fc;
    --bg-subtle: #f1f5f9;
    --surface: #ffffff;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;

    /* Text */
    --text: #0f172a;
    --text-muted: #475569;
    --text-soft: #64748b;
    --text-on-dark: #f8fafc;

    /* Shape & motion */
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08);

    /* Motion curves & timings */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
    --t-fast: 0.18s;
    --t-base: 0.3s;
    --t-slow: 0.55s;
    --transition: var(--t-fast) var(--ease-soft);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

main {
    flex: 1;
    margin-top: 80px;
    padding: 2.5rem 1.25rem 4rem;
    max-width: 1200px;
    width: 100%;
    margin-inline: auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Manrope', 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.25;
    color: var(--primary);
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 2.5vw, 1.9rem); }
h3 { font-size: 1.25rem; }

p { color: var(--text); }

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--accent-700); text-decoration: underline; }

strong { color: var(--primary); font-weight: 600; }

/* Reusable panel — the new "card" replacing glass-panel */
.panel, .glass-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 1.75rem;
    transition: box-shadow var(--transition), transform var(--transition);
}
.panel:hover, .glass-panel:hover {
    box-shadow: var(--shadow);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 80px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    justify-content: center;
}

.nav-container {
    max-width: 1400px;
    width: 100%;
    padding: 0 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'Manrope', 'Inter', sans-serif;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.01em;
}
.logo span { color: var(--accent); }
.logo .logo-mark {
    width: 44px; height: 44px;
    display: inline-flex; align-items: center; justify-content: center;
}
.logo .logo-mark svg {
    width: 100%; height: 100%;
    display: block;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.92rem;
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    position: relative;
    transition: all var(--transition);
}
.nav-links a:hover {
    color: var(--primary);
    background: var(--accent-50);
    text-decoration: none;
}
.nav-links a.active {
    color: var(--accent);
    background: var(--accent-50);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.4rem 0.7rem;
    font-size: 1.2rem;
    color: var(--primary);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 5rem 2rem 4.5rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 2.5rem;
    text-align: center;
    background:
        radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 85% 80%, rgba(8, 145, 178, 0.10) 0%, transparent 45%),
        linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 880px;
    margin: 0 auto;
}

.hero .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-50);
    border: 1px solid rgba(37, 99, 235, 0.18);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.hero .eyebrow::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.18);
}

.hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    color: var(--primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}
.hero h2.subtitle {
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 1.75rem;
    letter-spacing: 0;
    text-transform: none;
}

.hero-theme {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-50) 0%, var(--ai-50) 100%);
    border: 1px solid rgba(37, 99, 235, 0.18);
    padding: 1rem 1.75rem;
    border-radius: var(--radius);
    margin-bottom: 1.75rem;
    max-width: 720px;
}
.hero-theme .theme-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 0.3rem;
    font-weight: 600;
}
.hero-theme h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin: 0;
}

.meta-row {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}
.meta-row .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-muted);
}
.meta-row .meta-item strong { color: var(--primary); font-weight: 600; }
.meta-row .meta-sep {
    width: 1px; height: 18px;
    background: var(--border-strong);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.6rem;
    border-radius: 10px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    letter-spacing: 0;
    transition: all var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    line-height: 1.2;
}
.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
    background: var(--accent-700);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.30);
    color: white;
    text-decoration: none;
}
.btn-secondary {
    background: var(--surface);
    color: var(--primary);
    border-color: var(--border-strong);
}
.btn-secondary:hover {
    background: var(--bg-subtle);
    border-color: var(--primary);
    color: var(--primary);
    text-decoration: none;
}
.btn-dark {
    background: var(--primary);
    color: white;
}
.btn-dark:hover {
    background: var(--primary-700);
    color: white;
    text-decoration: none;
}
.btn[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
}

/* Section headings */
.section-head {
    text-align: center;
    margin-bottom: 2.25rem;
}
.section-head h2 {
    margin-bottom: 0.5rem;
}
.section-head .divider {
    width: 56px; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--ai));
    border-radius: 2px;
    margin: 0.75rem auto 0;
}
.section-head p {
    color: var(--text-muted);
    margin-top: 0.4rem;
}

/* Page header */
.page-header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding: 2rem 1rem 1.5rem;
}
.page-header h1 {
    margin-bottom: 0.5rem;
}
.page-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
}
.page-header .divider {
    width: 56px; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--ai));
    border-radius: 2px;
    margin: 0.75rem auto 0;
}

/* Grid + cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}
.card-body { padding: 1.75rem; }

.card h3 {
    color: var(--primary);
    font-size: 1.15rem;
    margin-bottom: 1rem;
    padding-bottom: 0.7rem;
    border-bottom: 2px solid var(--accent-50);
    position: relative;
}
.card h3::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 32px; height: 2px;
    background: var(--accent);
}

/* Tables */
.table-wrapper {
    overflow-x: auto;
    margin: 1.5rem 0;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
}
th, td {
    padding: 0.95rem 1.1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
}
th {
    background: var(--bg-subtle);
    font-family: 'Manrope', 'Inter', sans-serif;
    font-weight: 600;
    color: var(--primary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--accent-50); }
td .fee {
    font-family: 'Manrope', 'Inter', sans-serif;
    font-weight: 700;
    color: var(--accent);
}

/* Footer */
footer {
    background: var(--primary);
    color: var(--text-on-dark);
    padding: 3.5rem 1.25rem 1.5rem;
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
}
footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--ai) 50%, var(--accent) 100%);
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2.5rem;
}
.footer-section h3 {
    color: white;
    margin-bottom: 0.9rem;
    font-size: 1.05rem;
    font-family: 'Manrope', 'Inter', sans-serif;
}
.footer-section p, .footer-section a {
    color: #cbd5e1;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
    display: block;
}
.footer-section a:hover { color: white; text-decoration: underline; }
.footer-section strong { color: white; font-weight: 600; }
.footer-bottom {
    max-width: 1200px;
    margin: 2.5rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.12);
    text-align: center;
    font-size: 0.85rem;
    color: #94a3b8;
}

/* Minimal footer (single-line) */
.footer-minimal {
    padding: 1.5rem 1.25rem;
    margin-top: 4rem;
}
.footer-minimal .footer-bottom,
.footer-minimal .footer-bottom p {
    margin: 0 auto;
    padding-top: 0;
    border-top: 0;
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* Lists */
.styled-list {
    list-style: none;
}
.styled-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.55rem;
    line-height: 1.6;
}
.styled-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-50);
}

/* Highlight date box */
.highlight-date {
    background: var(--highlight-50);
    border-left: 3px solid var(--highlight);
    padding: 0.6rem 1rem 0.6rem 1rem;
    border-radius: 0 8px 8px 0;
    font-weight: 600;
    color: var(--primary);
    margin: 0.4rem 0;
    list-style: none !important;
}
.highlight-date::before { display: none !important; }
.styled-list li.highlight-date {
    padding-left: 1rem;
    margin-left: -1.5rem;
}

/* Topic chip-style list (alternative) */
.topic-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
}

/* Logos grid */
.organizer-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 2.25rem;
    justify-content: center;
    align-items: center;
    margin-top: 1.25rem;
}
.organizer-logos img {
    max-height: 70px;
    max-width: 180px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: all var(--transition);
}
.organizer-logos img:hover {
    filter: grayscale(0%);
    transform: scale(1.04);
}
.host-logo img { max-height: 110px; }

.logo-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1rem;
    text-align: center;
    max-width: 200px;
    transition: all var(--transition);
}
.logo-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}
.logo-card img {
    max-height: 64px;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: 0.7rem;
}
.logo-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    line-height: 1.35;
    margin: 0;
}

/* Speaker cards */
.speaker-card {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}
.speaker-avatar {
    width: 130px; height: 130px;
    border-radius: 50%;
    background: var(--bg-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--accent-50), 0 8px 20px rgba(15, 23, 42, 0.08);
    overflow: hidden;
    flex-shrink: 0;
}
.speaker-avatar img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.speaker-info h3 {
    font-size: 1.35rem;
    margin-bottom: 0.3rem;
    border: none;
    padding-bottom: 0;
}
.speaker-info h3::after { display: none; }
.speaker-info .affiliation {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.7rem;
}

@media (max-width: 600px) {
    .speaker-card { flex-direction: column; text-align: center; }
}

/* Contact form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
}
@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    margin-bottom: 1.1rem;
    border: 1px solid var(--border-strong);
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    background: var(--surface);
    color: var(--text);
    transition: all var(--transition);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-soft); }
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-50);
}

/* Hotel cards */
.hotel-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.hotel-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}
.hotel-card h4 {
    color: var(--primary);
    font-family: 'Manrope', 'Inter', sans-serif;
    font-size: 1.15rem;
    margin-bottom: 0.6rem;
}
.hotel-card p { margin-bottom: 0.3rem; font-size: 0.94rem; }

/* Publisher logos block */
.publisher-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    margin: 2.5rem 0;
    flex-wrap: wrap;
}
.publisher-mark {
    font-family: 'Manrope', 'Inter', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--primary);
}
.publisher-mark.scopus { color: #e87722; }
.publisher-divider {
    width: 1px; height: 48px;
    background: var(--border-strong);
}

/* Empty/placeholder state */
.placeholder-state {
    text-align: center;
    padding: 5rem 2rem;
}
.placeholder-state .icon {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-50), var(--ai-50));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--accent);
    border: 1px solid var(--border);
}
.placeholder-state h2 {
    color: var(--primary);
    margin-bottom: 0.75rem;
}
.placeholder-state p {
    color: var(--text-muted);
    max-width: 580px;
    margin: 0 auto;
}

/* Span helpers */
.span-2 { grid-column: span 2; }
.span-all { grid-column: 1 / -1; }

/* Responsive */
@media (max-width: 992px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0; right: 0;
        background: white;
        backdrop-filter: none;
        flex-direction: column;
        padding: 0.75rem;
        box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
        border-bottom: 1px solid var(--border);
        gap: 0.25rem;
    }
    .nav-links.active { display: flex; }
    .nav-links a {
        padding: 0.75rem 1rem;
        border-radius: 8px;
        width: 100%;
    }
    .mobile-menu-btn { display: inline-flex; align-items: center; }
    .hero { padding: 3.5rem 1.25rem 3rem; }
    .span-2 { grid-column: span 1; }
}

@media (max-width: 768px) {
    main { padding: 1.5rem 1rem 3rem; }
    .panel, .glass-panel, .card-body { padding: 1.5rem; }
    .meta-row { flex-direction: column; gap: 0.4rem; }
    .meta-row .meta-sep { display: none; }
}

/* Print friendliness */
@media print {
    header, footer, .hero-cta, .mobile-menu-btn { display: none; }
    main { margin-top: 0; }
}

/* =========================================================
   MOTION LAYER — professional, restrained, prefers-reduced-motion safe
   ========================================================= */

/* Smooth scroll baseline */
html { scroll-behavior: smooth; }

/* Header shrink on scroll */
header {
    transition: height var(--t-base) var(--ease-out),
                background-color var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out),
                backdrop-filter var(--t-base) var(--ease-out);
}
header.is-scrolled {
    height: 64px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 4px 18px rgba(15, 23, 42, 0.06);
}
header.is-scrolled .logo { font-size: 1.2rem; }
header.is-scrolled .logo-mark { width: 38px; height: 38px; }

/* Nav links — animated underline */
.nav-links a {
    overflow: hidden;
}
.nav-links a::after {
    content: '';
    position: absolute;
    left: 0.85rem; right: 0.85rem;
    bottom: 0.35rem;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform var(--t-base) var(--ease-out);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}
.nav-links a:hover {
    background: transparent;
}
.nav-links a.active { background: transparent; }

/* Logo gentle pulse on mark */
@keyframes logoPulse {
    0%, 100% { box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25); }
    50%      { box-shadow: 0 4px 18px rgba(37, 99, 235, 0.45); }
}
.logo:hover .logo-mark {
    animation: logoPulse 1.6s var(--ease-in-out) infinite;
}
.logo .logo-mark { transition: transform var(--t-base) var(--ease-out); }
.logo:hover .logo-mark { transform: rotate(-8deg) scale(1.05); }

/* =========================================================
   HERO — animated ambient layers + staggered entrance
   ========================================================= */
.hero {
    isolation: isolate;
}

/* Drifting gradient orbs behind hero */
.hero::after {
    content: '';
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.18) 0%, transparent 35%),
        radial-gradient(circle at 80% 70%, rgba(8, 145, 178, 0.18) 0%, transparent 38%),
        radial-gradient(circle at 60% 20%, rgba(217, 119, 6, 0.10) 0%, transparent 30%);
    filter: blur(8px);
    z-index: 0;
    animation: orbDrift 22s ease-in-out infinite alternate;
    pointer-events: none;
}
@keyframes orbDrift {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    50%  { transform: translate3d(-3%, 2%, 0) scale(1.05); }
    100% { transform: translate3d(2%, -2%, 0) scale(0.98); }
}

/* Slow grid pan */
.hero::before {
    animation: gridPan 60s linear infinite;
}
@keyframes gridPan {
    from { background-position: 0 0, 0 0; }
    to   { background-position: 48px 48px, 48px 48px; }
}

/* Hero content entrance */
.hero-content > * {
    opacity: 0;
    transform: translateY(14px);
    animation: heroIn 0.7s var(--ease-out) forwards;
}
.hero-content > *:nth-child(1) { animation-delay: 0.05s; }
.hero-content > *:nth-child(2) { animation-delay: 0.15s; }
.hero-content > *:nth-child(3) { animation-delay: 0.25s; }
.hero-content > *:nth-child(4) { animation-delay: 0.35s; }
.hero-content > *:nth-child(5) { animation-delay: 0.45s; }
.hero-content > *:nth-child(6) { animation-delay: 0.55s; }
.hero-content > *:nth-child(7) { animation-delay: 0.65s; }

@keyframes heroIn {
    to { opacity: 1; transform: translateY(0); }
}

/* Eyebrow pulse dot */
.hero .eyebrow::before {
    animation: eyebrowPulse 2.2s var(--ease-in-out) infinite;
}
@keyframes eyebrowPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.45); }
    50%      { box-shadow: 0 0 0 8px rgba(37, 99, 235, 0); }
}

/* Hero theme card subtle hover lift */
.hero-theme {
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out);
}
.hero-theme:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.12);
}

/* Meta row icon hover */
.meta-row .meta-item strong {
    display: inline-block;
    transition: transform var(--t-base) var(--ease-out);
}
.meta-row .meta-item:hover strong {
    transform: scale(1.18) rotate(-4deg);
}

/* =========================================================
   BUTTONS — shimmer / lift / icon glide
   ========================================================= */
.btn {
    position: relative;
    overflow: hidden;
    transition: transform var(--t-fast) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out),
                background-color var(--t-fast) var(--ease-out),
                color var(--t-fast) var(--ease-out),
                border-color var(--t-fast) var(--ease-out);
}
.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.7s var(--ease-out);
    pointer-events: none;
}
.btn:hover::before { transform: translateX(100%); }
.btn:active { transform: translateY(0) scale(0.98); }

.btn-primary:hover { transform: translateY(-2px); }
.btn-dark:hover { transform: translateY(-2px); }
.btn-secondary:hover { transform: translateY(-1px); }

/* Icon/arrow inside btn glides on hover (works for "→" suffix or <svg>) */
.btn { gap: 0.55rem; }
.btn svg, .btn .arrow { transition: transform var(--t-base) var(--ease-out); }
.btn:hover svg, .btn:hover .arrow { transform: translateX(3px); }

/* =========================================================
   CARDS — refined hover lift with smoother shadow blooms
   ========================================================= */
.card, .panel, .glass-panel {
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out),
                border-color var(--t-base) var(--ease-out);
    will-change: transform;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.25);
}
.panel:hover, .glass-panel:hover {
    box-shadow: var(--shadow);
}

/* Card heading underline grows on hover */
.card h3::after {
    transition: width var(--t-base) var(--ease-out);
}
.card:hover h3::after { width: 64px; }

/* Styled-list bullets pop on hover */
.styled-list li::before {
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out);
}
.styled-list li:hover::before {
    transform: scale(1.4);
    box-shadow: 0 0 0 5px var(--accent-50);
}

/* Highlight date — soft glow pulse */
@keyframes highlightGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.0); }
    50%      { box-shadow: 0 0 0 6px rgba(217, 119, 6, 0.08); }
}
.highlight-date { animation: highlightGlow 3s var(--ease-in-out) infinite; }

/* =========================================================
   TABLES — row reveal on hover
   ========================================================= */
tbody tr {
    transition: background-color var(--t-fast) var(--ease-out),
                transform var(--t-fast) var(--ease-out);
}
tbody tr:hover {
    transform: translateX(2px);
}
.fee { transition: transform var(--t-base) var(--ease-out); display: inline-block; }
tbody tr:hover .fee { transform: scale(1.05); }

/* =========================================================
   LOGOS — staggered fade on load, refined hover
   ========================================================= */
.logo-card {
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out),
                border-color var(--t-base) var(--ease-out);
}
.logo-card:hover {
    transform: translateY(-4px) scale(1.02);
}
.logo-card img {
    transition: filter var(--t-base) var(--ease-out),
                transform var(--t-base) var(--ease-out);
    filter: grayscale(35%);
}
.logo-card:hover img {
    filter: grayscale(0%);
    transform: scale(1.06);
}

/* =========================================================
   SPEAKER AVATARS — ring breath
   ========================================================= */
.speaker-avatar {
    transition: box-shadow var(--t-slow) var(--ease-out),
                transform var(--t-base) var(--ease-out);
}
.speaker-card:hover .speaker-avatar {
    transform: scale(1.03);
    box-shadow: 0 0 0 4px var(--accent-50), 0 14px 30px rgba(15, 23, 42, 0.12);
}
.speaker-avatar img { transition: transform 0.8s var(--ease-out); }
.speaker-card:hover .speaker-avatar img { transform: scale(1.06); }

/* =========================================================
   FORM — focus float labels (simple lift)
   ========================================================= */
.contact-form input,
.contact-form textarea {
    transition: border-color var(--t-fast) var(--ease-out),
                box-shadow var(--t-fast) var(--ease-out),
                transform var(--t-fast) var(--ease-out);
}
.contact-form input:focus,
.contact-form textarea:focus {
    transform: translateY(-1px);
}

/* =========================================================
   LINK UNDERLINE (body links) — slide-in
   ========================================================= */
main p a, main li a {
    background-image: linear-gradient(var(--accent), var(--accent));
    background-position: 0 100%;
    background-repeat: no-repeat;
    background-size: 0% 1px;
    transition: background-size var(--t-base) var(--ease-out),
                color var(--t-fast) var(--ease-out);
    padding-bottom: 1px;
    text-decoration: none;
}
main p a:hover, main li a:hover {
    background-size: 100% 1px;
    text-decoration: none;
}

/* =========================================================
   PAGE HEADER divider — wipe-in on load
   ========================================================= */
.page-header .divider,
.section-head .divider {
    transform: scaleX(0);
    transform-origin: center;
    animation: dividerIn 0.8s 0.2s var(--ease-out) forwards;
}
@keyframes dividerIn {
    to { transform: scaleX(1); }
}

/* =========================================================
   SCROLL REVEAL — opt-in via [data-reveal]
   ========================================================= */
[data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s var(--ease-out),
                transform 0.7s var(--ease-out);
    will-change: opacity, transform;
}
[data-reveal="fade"] { transform: none; }
[data-reveal="left"]  { transform: translateX(-18px); }
[data-reveal="right"] { transform: translateX(18px); }
[data-reveal="zoom"]  { transform: scale(0.97); }

[data-reveal].is-in {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* Optional stagger via inline --d (delay in s) */
[data-reveal] { transition-delay: var(--d, 0s); }

/* Page-load fade for main */
main { animation: pageIn 0.5s var(--ease-out) both; }
@keyframes pageIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   PROGRESS BAR (top of page)
   ========================================================= */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--ai));
    z-index: 1100;
    transition: width 0.08s linear;
    border-radius: 0 2px 2px 0;
}

/* =========================================================
   BACK TO TOP button
   ========================================================= */
.back-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--primary);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px) scale(0.9);
    pointer-events: none;
    transition: opacity var(--t-base) var(--ease-out),
                transform var(--t-base) var(--ease-out),
                background-color var(--t-fast) var(--ease-out),
                color var(--t-fast) var(--ease-out);
    z-index: 999;
}
.back-to-top.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.back-to-top:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* =========================================================
   Honor reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    [data-reveal] { opacity: 1; transform: none; }
    .hero::after, .hero::before { animation: none; }
}