:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-dark: #0f172a;
    --bg: #1a1f3a;
    --bg-light: #252e48;
    --bg-lighter: #2e3850;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

html, body {
    width: 100%;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Landing Page Styles */
.landing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg) 50%, var(--bg-light) 100%);
    position: relative;
    overflow-x: hidden;
}

.landing-container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* Header */
.landing-header {
    position: relative;
    z-index: 10;
    padding: 24px 32px;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.header-content h1.logo {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    margin-bottom: 4px;
}

.header-content .tagline {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.header-nav {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
}

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

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 32px;
    position: relative;
    z-index: 5;
    text-align: center;
}

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

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.8;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.feature {
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: var(--transition);
}

.feature:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.feature p {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Action Section */
.action-section {
    position: relative;
    z-index: 5;
    display: flex;
    gap: 16px;
    justify-content: center;
    padding: 0 32px 60px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    min-width: 200px;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
}

.btn-icon {
    font-size: 20px;
}

/* Info Section */
.info-section {
    position: relative;
    z-index: 5;
    padding: 60px 32px;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid var(--border-color);
}

.info-card {
    max-width: 600px;
    margin: 0 auto;
    padding: 32px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.info-card h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary);
}

.info-list {
    list-style: none;
    counter-reset: step-counter;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-list li {
    counter-increment: step-counter;
    display: flex;
    gap: 16px;
    padding-left: 48px;
    position: relative;
}

.info-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
}

.info-list li strong {
    color: var(--primary);
}

/* Footer */
.landing-footer {
    position: relative;
    z-index: 5;
    padding: 32px;
    background: rgba(15, 23, 42, 0.8);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.landing-footer p {
    margin: 8px 0;
}

.footer-links a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .landing-header {
        flex-direction: column;
        gap: 16px;
        padding: 16px;
    }

    .header-nav {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .nav-link {
        width: 100%;
        text-align: center;
    }

    .hero {
        padding: 40px 16px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        font-size: 16px;
        margin-bottom: 32px;
    }

    .action-section {
        padding: 0 16px 32px;
        gap: 12px;
    }

    .btn {
        min-width: 150px;
        padding: 14px 24px;
        font-size: 14px;
    }

    .info-section {
        padding: 32px 16px;
    }

    .info-card {
        padding: 20px;
    }

    .landing-footer {
        padding: 20px 16px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .landing-header {
        padding: 12px;
    }

    .header-content h1.logo {
        font-size: 20px;
    }

    .hero {
        padding: 24px 12px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-description {
        font-size: 14px;
    }

    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .action-section {
        flex-direction: column;
        padding: 0 12px 24px;
    }

    .btn {
        width: 100%;
        min-width: unset;
    }

    .info-list li {
        font-size: 13px;
    }
}