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

:root {
    --primary: #1E40AF;
    --primary-light: #3B82F6;
    --secondary: #F97316;
    --bg: #0F172A;
    --bg-surface: #1E293B;
    --bg-elevated: #334155;
    --text: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #64748B;
    --border: #334155;
    --success: #22C55E;
    --warning: #EAB308;
    --error: #EF4444;
    --gradient-primary: linear-gradient(135deg, #1E40AF, #3B82F6);
    --gradient-secondary: linear-gradient(135deg, #F97316, #FB923C);
    --gradient-hero: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, #0F172A 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(30, 64, 175, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.5);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-outline:hover {
    background: var(--bg-surface);
    border-color: var(--primary-light);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 17px;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: white;
    stroke-width: 2;
}

nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

nav a {
    font-size: 15px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

nav a:hover {
    color: var(--text);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(30, 64, 175, 0.3), transparent);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(30, 64, 175, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: 32px;
}

.hero-title {
    font-size: clamp(40px, 8vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title span {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 22px);
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    margin-top: 80px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(249, 115, 22, 0.15);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    fill: none;
    stroke: white;
    stroke-width: 2;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.formats-section {
    background: var(--bg-surface);
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.format-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s ease;
}

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

.format-icon {
    width: 72px;
    height: 72px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    font-weight: 700;
    color: white;
}

.format-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.format-desc {
    font-size: 13px;
    color: var(--text-muted);
}

.showcase-section {
    position: relative;
    overflow: hidden;
}

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

.showcase-text {
    max-width: 500px;
}

.showcase-list {
    margin-top: 32px;
}

.showcase-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.showcase-item-icon {
    width: 32px;
    height: 32px;
    background: rgba(34, 197, 94, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.showcase-item-icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--success);
    fill: none;
    stroke-width: 3;
}

.showcase-item-text {
    font-size: 16px;
    color: var(--text-secondary);
}

.showcase-preview {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    overflow: hidden;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.preview-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.preview-dot:nth-child(1) { background: #EF4444; }
.preview-dot:nth-child(2) { background: #EAB308; }
.preview-dot:nth-child(3) { background: #22C55E; }

.preview-content {
    background: var(--bg);
    border-radius: 12px;
    padding: 24px;
    min-height: 300px;
}

.preview-bracket {
    display: flex;
    gap: 48px;
    align-items: center;
    justify-content: center;
}

.preview-round {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.preview-match {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    min-width: 140px;
}

.preview-team {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    font-size: 13px;
}

.preview-team.winner {
    background: rgba(34, 197, 94, 0.1);
    border-radius: 4px;
    color: var(--success);
}

.cta-section {
    text-align: center;
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-surface) 100%);
}

.cta-box {
    background: var(--gradient-primary);
    border-radius: 24px;
    padding: 80px 40px;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
}

.cta-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.cta-actions {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-actions .btn-secondary {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.cta-actions .btn-outline {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.cta-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

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

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 600;
}

.footer-text {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

@media (max-width: 1024px) {
    .formats-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .showcase-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .showcase-preview {
        order: -1;
    }
}

@media (max-width: 768px) {
    nav {
        display: none;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .formats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

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

    .hero-actions {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
    }
}