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

:root {
    --primary: #4687ff;
    --primary-dark: #2563eb;
    --danger: #dc2626;
    --bg: #0f1729;
    --bg-card: #1e293b;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 41, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.logo-icon { font-size: 1.5rem; }

.nav { display: flex; gap: 2rem; }
.nav a { color: var(--text-muted); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--primary); }

.btn-header {
    background: var(--danger);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.btn-primary { background: var(--danger); color: white; }
.btn-primary:hover { background: #b91c1c; transform: translateY(-2px); }

.btn-outline { border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-white { background: white; color: var(--bg); }
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.9rem; background: var(--primary); color: white; }

.hero {
    padding: 10rem 0 5rem;
    text-align: center;
    background: radial-gradient(ellipse at 50% 0%, rgba(70, 135, 255, 0.15) 0%, transparent 60%);
}

.hero-content { max-width: 800px; margin: 0 auto; }

.badge {
    display: inline-block;
    background: rgba(70, 135, 255, 0.15);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(70, 135, 255, 0.3);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-actions { display: flex; justify-content: center; gap: 1rem; margin-bottom: 2rem; }

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.stats-section {
    padding: 3rem 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label { color: var(--text-muted); }

.features, .why-section, .download-section { padding: 5rem 0; }

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-desc {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.feature-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; }

.why-section { background: var(--bg-card); }

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.why-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
}

.why-item h3 { margin-bottom: 0.75rem; }
.why-item p { color: var(--text-muted); }

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.platform-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.platform-icon { font-size: 2rem; margin-bottom: 0.5rem; display: block; }
.platform-card h3 { font-size: 0.95rem; margin-bottom: 1rem; }

.cta-section { padding: 3rem 0; }

.cta-box {
    background: linear-gradient(135deg, var(--danger), #991b1b);
    border-radius: 24px;
    padding: 4rem;
    text-align: center;
}

.cta-box h2 { color: white; margin-bottom: 0.5rem; }
.cta-box p { color: rgba(255,255,255,0.9); margin-bottom: 2rem; font-size: 1.25rem; }
.cta-note { display: block; margin-top: 1rem; color: rgba(255,255,255,0.8); font-size: 0.9rem; }

.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand { font-size: 1.25rem; font-weight: 700; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); margin-top: 0.5rem; }

.footer-links { display: flex; gap: 2rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; }

.footer-bottom { text-align: center; color: var(--text-muted); font-size: 0.9rem; }

@media (max-width: 768px) {
    .nav { display: none; }
    .hero h1 { font-size: 2.5rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .platforms-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-trust { flex-direction: column; gap: 0.5rem; }
    .footer-content { flex-direction: column; gap: 2rem; text-align: center; }
}