/* ================================
   EthCC[9] — Landing Page
   Premium Dark Theme with Ethereum accent colors
   ================================ */

/* ----- Reset & Variables ----- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0b0f;
    --bg-card: #12131a;
    --bg-card-hover: #1a1b25;
    --bg-elevated: #16172180;
    --border: #ffffff10;
    --border-hover: #ffffff20;
    --text: #e8e9ed;
    --text-muted: #8a8d98;
    --text-dim: #5a5d68;
    --accent: #627eea;
    --accent-bright: #8b9ff5;
    --accent-glow: #627eea40;
    --gradient-1: linear-gradient(135deg, #627eea 0%, #a855f7 100%);
    --gradient-2: linear-gradient(135deg, #627eea 0%, #06b6d4 100%);
    --gradient-3: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --gold: #f59e0b;
    --green: #10b981;
    --red: #ef4444;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', var(--font);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ----- Navbar ----- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: var(--transition);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    background: rgba(10, 11, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-icon {
    font-size: 1.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-accent { color: var(--accent); }

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--gradient-1);
    transition: var(--transition);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
    padding: 10px 20px;
    border-radius: 50px;
    background: var(--gradient-1);
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
    letter-spacing: 0.02em;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font);
}

.btn-primary {
    background: var(--gradient-1);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-glow {
    box-shadow: 0 0 20px var(--accent-glow), 0 0 60px rgba(98, 126, 234, 0.15);
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px var(--accent-glow), 0 0 60px rgba(98, 126, 234, 0.15); }
    50% { box-shadow: 0 0 30px var(--accent-glow), 0 0 80px rgba(98, 126, 234, 0.25); }
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text);
    border-color: var(--border-hover);
}

.btn-icon {
    font-size: 1.1rem;
}

/* ----- Hero ----- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 11, 15, 0.5) 0%,
        rgba(10, 11, 15, 0.7) 40%,
        rgba(10, 11, 15, 0.92) 70%,
        rgba(10, 11, 15, 1) 100%
    );
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 24px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(98, 126, 234, 0.12);
    border: 1px solid rgba(98, 126, 234, 0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-bright);
    margin-bottom: 28px;
    animation: fadeInDown 0.8s ease-out;
}

.badge-dot {
    width: 8px; height: 8px;
    background: var(--green);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-accent {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle-line {
    display: block;
    font-size: 0.5em;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    -webkit-text-fill-color: var(--text-muted);
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 650px;
    margin: 0 auto 32px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-desc strong { color: var(--text); }

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 36px;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
}

.meta-item svg {
    flex-shrink: 0;
    color: var(--accent);
}

.meta-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.meta-value {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* Countdown */
.countdown-bar {
    position: relative;
    z-index: 2;
    padding: 24px 0;
    margin-top: auto;
}

.countdown-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 20px 32px;
    background: rgba(18, 19, 26, 0.85);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 800px;
    margin: 0 auto;
}

.countdown-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.spots-label { color: var(--gold); font-weight: 600; }

.countdown-timer {
    display: flex;
    align-items: center;
    gap: 8px;
}

.countdown-unit { text-align: center; }

.countdown-num {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.countdown-text {
    display: block;
    font-size: 0.65rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 2px;
}

.countdown-sep {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dim);
    margin-bottom: 12px;
}

/* ----- Why USDT ----- */
.why-usdt {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg) 0%, rgba(98, 126, 234, 0.04) 100%);
}

.usdt-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.usdt-card {
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

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

.usdt-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: rgba(98, 126, 234, 0.08);
    border-radius: 12px;
    padding: 8px;
}

.usdt-card h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.usdt-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ----- Section Tags & Titles ----- */
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(98, 126, 234, 0.1);
    border: 1px solid rgba(98, 126, 234, 0.2);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-bright);
    letter-spacing: 0.03em;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
}

.section-title.center { text-align: center; }
.section-desc.center { text-align: center; }

.section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

/* ----- About ----- */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-item {
    text-align: center;
    padding: 16px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.highlight-dot {
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.about-visual {
    position: relative;
}

.about-img {
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.about-float-card {
    position: absolute;
    bottom: -20px; left: -20px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
}



.about-float-card strong {
    display: block;
    font-size: 0.95rem;
}

.about-float-card span {
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ----- Topics ----- */
.topics {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg) 0%, rgba(98, 126, 234, 0.03) 50%, var(--bg) 100%);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 64px;
}

.topic-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.topic-svg {
    margin-bottom: 16px;
    opacity: 0.9;
}

.topic-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.topic-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Speakers */
.speakers-section {
    padding: 100px 0;
}

.speakers-more {
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-top: 32px;
    font-style: italic;
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.speaker-card {
    padding: 28px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.speaker-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.speaker-photo-wrap {
    width: 80px; height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 14px;
    border: 2px solid var(--border);
    transition: var(--transition);
}

.speaker-card:hover .speaker-photo-wrap {
    border-color: var(--accent);
}

.speaker-photo {
    width: 100%; height: 100%;
    object-fit: cover;
}

.speaker-card h4 {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.speaker-org {
    display: block;
    font-size: 0.78rem;
    color: var(--text-dim);
}

.speaker-role {
    display: block;
    margin-top: 8px;
    font-size: 0.72rem !important;
    color: var(--accent-bright) !important;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ----- Schedule ----- */
.schedule {
    padding: 100px 0;
}

.schedule-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.schedule-timeline::before {
    content: '';
    position: absolute;
    left: 110px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent-glow), transparent);
}

.timeline-item {
    display: flex;
    gap: 48px;
    padding: 32px 0;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 105px; top: 42px;
    width: 12px; height: 12px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid var(--bg);
    z-index: 1;
}

.timeline-date {
    min-width: 80px;
    text-align: right;
    flex-shrink: 0;
}

.timeline-day {
    display: block;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.timeline-weekday {
    display: block;
    font-size: 0.78rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.timeline-content {
    padding: 24px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    flex: 1;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.timeline-content h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.t-tag {
    padding: 4px 12px;
    background: rgba(98, 126, 234, 0.08);
    border: 1px solid rgba(98, 126, 234, 0.15);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
}

.t-tag.t-tag--highlight {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.25);
    color: var(--gold);
}

/* ----- Tickets ----- */
.tickets {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg) 0%, rgba(98, 126, 234, 0.05) 50%, var(--bg) 100%);
}

.tickets-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.ticket-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.ticket-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.ticket-card.featured {
    border-color: var(--accent);
    box-shadow: 0 0 40px var(--accent-glow);
    transform: scale(1.03);
}

.ticket-card.featured:hover {
    transform: scale(1.03) translateY(-6px);
}

.ticket-card.premium {
    border-color: var(--gold);
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.15);
}

.ticket-popular {
    position: absolute;
    top: 0; left: 0; right: 0;
    padding: 8px;
    text-align: center;
    background: var(--gradient-1);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.ticket-popular.premium-badge {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #000;
}

.ticket-header {
    padding: 40px 28px 28px;
    text-align: center;
}

.ticket-card.featured .ticket-header,
.ticket-card.premium .ticket-header {
    padding-top: 52px;
}

.ticket-tier {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    display: block;
    margin-bottom: 16px;
}

.ticket-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px;
}

.price-currency {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-bright);
}

.price-amount {
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1;
}

.price-original {
    font-size: 0.78rem;
    color: var(--text-dim);
}

.ticket-body {
    padding: 0 28px 28px;
}

.ticket-features {
    list-style: none;
    margin-bottom: 24px;
}

.ticket-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

.ticket-features li:last-child { border: none; }

.feat-icon {
    width: 20px;
    text-align: center;
    font-weight: 700;
    flex-shrink: 0;
}

.included .feat-icon { color: var(--green); }
.excluded .feat-icon { color: var(--text-dim); }
.excluded { color: var(--text-dim); }

.highlight-feat {
    color: var(--gold) !important;
    font-weight: 600;
}

.highlight-feat .feat-icon { color: var(--gold); }

.btn-ticket {
    width: 100%;
    justify-content: center;
    padding: 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    color: var(--text);
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-ticket:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.btn-ticket-featured {
    background: var(--gradient-1);
    border-color: transparent;
}

.btn-ticket-featured:hover {
    box-shadow: var(--shadow-glow);
}

.btn-ticket-premium {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border-color: transparent;
    color: #000;
}

/* Bundle */
.bundle-banner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.bundle-content {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 28px 36px;
}

.bundle-content > svg {
    flex-shrink: 0;
    opacity: 0.8;
}

.bundle-text { flex: 1; }

.bundle-text h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.bundle-text p {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.btn-bundle {
    padding: 12px 24px;
    border-radius: 50px;
    background: rgba(98, 126, 234, 0.12);
    border: 1px solid rgba(98, 126, 234, 0.25);
    color: var(--accent-bright);
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
}

.btn-bundle:hover {
    background: rgba(98, 126, 234, 0.2);
}

/* ----- How It Works ----- */
.how-it-works {
    padding: 100px 0;
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    flex: 1;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.step-number {
    width: 48px; height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-1);
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0 auto 16px;
}

.step-card h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.step-arrow {
    font-size: 1.5rem;
    color: var(--text-dim);
    flex-shrink: 0;
}

/* ----- Side Events ----- */
.side-events {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg) 0%, rgba(98, 126, 234, 0.03) 100%);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.event-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.event-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.event-svg {
    margin-bottom: 14px;
    opacity: 0.85;
}

.event-card h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.event-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ----- Checkout Section ----- */
.checkout-section {
    padding: 100px 0;
}

/* Trust Badges */
.trust-badges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.trust-badge {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.trust-badge:hover {
    transform: translateY(-4px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.08);
}

.trust-badge svg {
    margin-bottom: 16px;
}

.trust-badge h4 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.trust-badge p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* Social Proof */
.social-proof {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 36px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 48px;
}

.proof-stat {
    text-align: center;
}

.proof-num {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.proof-label {
    font-size: 0.82rem;
    color: var(--text-dim);
}

.proof-divider {
    width: 1px;
    height: 48px;
    background: var(--border);
}

/* Checkout CTA Card */
.checkout-cta-card {
    background: var(--bg-card);
    border: 1px solid var(--accent);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 0 60px var(--accent-glow);
    margin-bottom: 40px;
}

.checkout-cta-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.checkout-left {
    padding: 48px 40px;
}

.checkout-left h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.2;
}

.checkout-left > p {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.checkout-guarantees {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.guarantee-item svg {
    flex-shrink: 0;
}

.checkout-right {
    padding: 48px 40px;
    background: rgba(98, 126, 234, 0.04);
    border-left: 1px solid var(--border);
}

/* Quick Select */
.checkout-summary {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.summary-header {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

.summary-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.92rem;
    cursor: pointer;
    transition: var(--transition);
}

.summary-option:hover {
    border-color: var(--accent);
    background: rgba(98, 126, 234, 0.08);
}

.summary-option.active {
    border-color: var(--accent);
    background: rgba(98, 126, 234, 0.12);
    box-shadow: 0 0 20px var(--accent-glow);
}

.option-name {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.option-badge {
    padding: 2px 8px;
    background: var(--gradient-1);
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
}

.premium-option-badge {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #000;
}

.option-price {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--accent-bright);
}

.btn-checkout {
    width: 100%;
    justify-content: center;
    padding: 18px;
    font-size: 1.05rem;
    margin-top: 4px;
}

.checkout-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-dim);
}

/* Accepted Methods */
.accepted-methods {
    text-align: center;
}

.accepted-label {
    display: block;
    font-size: 0.82rem;
    color: var(--text-dim);
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.methods-list {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.method {
    padding: 6px 16px;
    background: rgba(16, 185, 129, 0.06);
    border: 1px solid rgba(16, 185, 129, 0.12);
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--green);
}

.method-more {
    padding: 6px 16px;
    font-size: 0.82rem;
    color: var(--text-dim);
    font-weight: 500;
}

/* ----- FAQ ----- */
.faq {
    padding: 100px 0;
}

.faq-list {
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    background: none;
    border: none;
    color: var(--text);
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover { color: var(--accent-bright); }

.faq-chevron {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-dim);
    transition: var(--transition);
    flex-shrink: 0;
    width: 28px;
    text-align: center;
}

.faq-item.active .faq-chevron {
    transform: rotate(45deg);
    color: var(--accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding-bottom: 20px;
}

.faq-answer p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ----- Footer ----- */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 12px;
    line-height: 1.6;
}

.footer-links h4 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    margin-bottom: 16px;
    color: var(--text-muted);
}

.footer-links a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-dim);
    padding: 4px 0;
    transition: var(--transition);
}

.footer-links a:hover { color: var(--accent-bright); }

.accepted-coins {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.coin {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.15);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--green);
    font-weight: 500;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.78rem;
    color: var(--text-dim);
    text-align: center;
    line-height: 1.6;
}

/* ----- Animations ----- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
    .tickets-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto 40px; }
    .ticket-card.featured { transform: none; }
    .ticket-card.featured:hover { transform: translateY(-6px); }
    .speakers-grid { grid-template-columns: repeat(3, 1fr); }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .checkout-cta-inner { grid-template-columns: 1fr; }
    .checkout-right { border-left: none; border-top: 1px solid var(--border); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-cta { display: none; }
    .nav-toggle { display: flex; }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%; left: 0; right: 0;
        padding: 20px 24px;
        background: rgba(10, 11, 15, 0.98);
        border-bottom: 1px solid var(--border);
        gap: 16px;
    }

    .hero-meta {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .usdt-grid { grid-template-columns: repeat(2, 1fr); }
    .topics-grid { grid-template-columns: 1fr; }
    .events-grid { grid-template-columns: 1fr; }
    .speakers-grid { grid-template-columns: repeat(2, 1fr); }
    .about-stats { grid-template-columns: repeat(2, 1fr); }

    .steps-grid { flex-direction: column; }
    .step-arrow { transform: rotate(90deg); }

    .schedule-timeline::before { left: 20px; }
    .timeline-item { flex-direction: column; gap: 12px; padding-left: 48px; }
    .timeline-item::before { left: 15px; }
    .timeline-date { text-align: left; }

    .countdown-container { flex-direction: column; gap: 12px; }

    .bundle-content { flex-direction: column; text-align: center; }

    .order-card { padding: 32px 20px; }

    .trust-badges { grid-template-columns: 1fr; }
    .social-proof { flex-direction: column; gap: 20px; padding: 28px 20px; }
    .proof-divider { width: 60px; height: 1px; }
    .checkout-cta-inner { grid-template-columns: 1fr; }
    .checkout-left, .checkout-right { padding: 28px 20px; }
    .checkout-right { border-left: none; border-top: 1px solid var(--border); }
    .checkout-guarantees { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
    .usdt-grid { grid-template-columns: 1fr; }
    .speakers-grid { grid-template-columns: 1fr; }
}