/* ============================================================
   SANKET 2026 — Editorial Dark Luxury
   Black · Gold · Cinematic · Minimal
   ============================================================ */

:root {
    --black:      #0c0c0c;
    --black-2:    #111111;
    --black-3:    #161616;
    --black-4:    #1c1c1c;
    --black-5:    #242424;
    --gold:       #d4a853;
    --gold-light: #e8c97a;
    --gold-dim:   rgba(212,168,83,0.12);
    --gold-border:rgba(212,168,83,0.2);
    --white:      #f8f6f2;
    --white-dim:  rgba(248,246,242,0.06);
    --white-dim2: rgba(248,246,242,0.03);
    --text-1:     #f8f6f2;
    --text-2:     #a09880;
    --text-3:     #5a5040;
    --border:     rgba(248,246,242,0.08);
    --border-2:   rgba(248,246,242,0.04);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    background: var(--black);
    color: var(--text-1);
    font-family: 'Google Sans Flex', 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--black-5); border-radius: 2px; }

/* ── Selection ── */
::selection { background: var(--gold-dim); color: var(--gold-light); }

/* ── Mesh gradient background ── */
.particle-bg {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
}
.particle-wave {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 10% 20%, rgba(212,168,83,0.07) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 90% 80%, rgba(212,168,83,0.05) 0%, transparent 50%),
        radial-gradient(ellipse 40% 60% at 50% 50%, rgba(255,255,255,0.02) 0%, transparent 60%);
    animation: meshDrift 20s ease-in-out infinite alternate;
}
@keyframes meshDrift {
    0%   { transform: scale(1) translate(0,0); opacity: 1; }
    100% { transform: scale(1.04) translate(0.5%,0.5%); opacity: 0.8; }
}

/* ── Navigation ── */
.google-header {
    background: rgba(12,12,12,0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.google-header.scrolled {
    border-bottom-color: var(--gold-border);
    box-shadow: 0 1px 40px rgba(0,0,0,0.8);
}

/* ── Hero heading ── */
.hero-heading {
    font-size: clamp(2.4rem, 6vw, 5rem);
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: -0.04em;
    color: var(--text-1);
}

/* ── Gold accent text ── */
.text-gold { color: var(--gold) !important; }

/* ── Section number ── */
.section-num {
    font-size: clamp(5rem, 12vw, 9rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.06em;
    color: var(--white-dim);
    user-select: none;
    pointer-events: none;
}

/* ── Section label ── */
.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
}

/* ── Gold badge ── */
.gold-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--gold-dim);
    border: 1px solid var(--gold-border);
    color: var(--gold-light);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 5px 14px;
    border-radius: 100px;
}

/* ── Cards ── */
.glass-card, .google-card {
    background: var(--white-dim2);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color 0.3s, background 0.3s, transform 0.3s;
}
.glass-card:hover, .google-card:hover {
    border-color: var(--gold-border);
    background: var(--white-dim);
    transform: translateY(-2px);
}

/* ── Divider ── */
.gold-divider, .glow-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-border), transparent);
}
.thin-line {
    height: 1px;
    background: var(--border);
}

/* ── Buttons ── */
.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--gold);
    color: var(--black);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.02em;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    padding: 12px 24px;
}
.btn-gold:hover {
    background: var(--gold-light);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(212,168,83,0.3);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-2);
    font-weight: 600;
    font-size: 13px;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    padding: 12px 24px;
}
.btn-ghost:hover {
    border-color: var(--gold-border);
    color: var(--gold-light);
    background: var(--gold-dim);
}

/* ── Ticker / marquee ── */
.ticker-wrap {
    overflow: hidden;
    position: relative;
}
.ticker-wrap::before,
.ticker-wrap::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 80px;
    z-index: 2;
    pointer-events: none;
}
.ticker-wrap::before { left: 0; background: linear-gradient(90deg, var(--black), transparent); }
.ticker-wrap::after  { right: 0; background: linear-gradient(-90deg, var(--black), transparent); }

.ticker-track {
    display: flex;
    gap: 0;
    animation: ticker 28s linear infinite;
    width: max-content;
}
.ticker-track:hover { animation-play-state: paused; }
@keyframes ticker {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.ticker-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 40px;
    border-right: 1px solid var(--border);
    white-space: nowrap;
}

/* ── Reveal animations ── */
.reveal-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.reveal-up.visible { opacity: 1; transform: translateY(0); }

/* ── Mobile drawer ── */
#mobile-drawer {
    position: fixed;
    top: 0; right: -100%;
    width: 80%; max-width: 300px;
    height: 100vh;
    background: var(--black-2);
    border-left: 1px solid var(--border);
    z-index: 200;
    padding: 2rem;
    transition: right 0.35s cubic-bezier(0.16,1,0.3,1);
    overflow-y: auto;
}
#mobile-drawer.open { right: 0; }
.mobile-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 199; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.mobile-overlay.open { opacity: 1; pointer-events: all; }
.mobile-link {
    display: block; padding: 0.75rem 1rem;
    color: var(--text-2); font-size: 0.95rem; font-weight: 500;
    border-radius: 8px; transition: all 0.15s; text-decoration: none;
}
.mobile-link:hover { background: var(--white-dim); color: var(--gold-light); }

/* ── Form inputs ── */
.dark-input {
    background: var(--black-3);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-1);
    transition: border-color 0.2s, background 0.2s;
    width: 100%; padding: 12px 16px; font-size: 14px; outline: none;
    font-family: inherit;
}
.dark-input::placeholder { color: var(--text-3); }
.dark-input:focus {
    border-color: var(--gold-border);
    background: var(--black-4);
    box-shadow: 0 0 0 3px var(--gold-dim);
}
.dark-input option { background: var(--black-3); color: var(--text-1); }

/* ── Speaker card ── */
.speaker-card { transition: transform 0.3s; }
.speaker-card:hover { transform: translateY(-6px); }

/* ── Stat number ── */
.stat-number {
    font-size: 2.5rem; font-weight: 700;
    color: var(--gold);
    letter-spacing: -0.04em;
}

/* ── Partner logo ── */
.partner-logo {
    filter: brightness(1.1) contrast(0.9);
    opacity: 0.7;
    transition: opacity 0.3s, filter 0.3s;
}
.partner-logo:hover {
    opacity: 1;
    filter: brightness(1.2) contrast(1);
}

/* ── Toast ── */
#toast-container {
    position: fixed; top: 80px; right: 24px;
    z-index: 100; display: flex; flex-direction: column; gap: 10px; pointer-events: none;
}

/* ── Animate fade in ── */
.animate-fade-in { animation: fadeIn 1s ease forwards; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Timeline dot ── */
.timeline-dot {
    background: var(--gold);
    box-shadow: 0 0 20px rgba(212,168,83,0.5);
}

/* ── Horizontal rule ── */
hr.section-rule {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
}

/* ── Mobile Responsiveness ── */
@media (max-width: 768px) {
    .hero-heading { font-size: clamp(1.8rem, 8vw, 3rem); }
    .section-num  { font-size: clamp(3rem, 15vw, 6rem); }

    /* Venue grid → single column */
    #venue > div > div[style*="grid-template-columns:1fr 1fr"],
    #contact > div > div[style*="grid-template-columns:1fr 1fr"],
    #about > div > div[style*="grid-template-columns:2fr 3fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Nav links hidden on mobile — handled by drawer */
    #main-nav .hidden { display: none !important; }

    /* Ticker items smaller */
    .ticker-item { padding: 0 20px; }

    /* Buttons full width on small screens */
    section .btn-gold, section .btn-ghost { width: 100%; justify-content: center; }

    /* Cards padding reduced */
    .glass-card { border-radius: 12px; }

    /* Admin nav scroll */
    #main-nav > div > div:nth-child(3) { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

@media (max-width: 480px) {
    main { padding-left: 16px !important; padding-right: 16px !important; }
    section { padding-left: 16px !important; padding-right: 16px !important; }
}