/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    padding: 3rem 0;
    text-align: center;
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-color);
}

.title {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 0.5rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

/* Hero Section */
.hero {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 3rem;
    margin-bottom: 3rem;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-features {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-2px);
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.2);
}

.feature-icon {
    font-size: 1.25rem;
}

/* Versions Section */
.versions-section {
    margin-top: 3rem;
}

.versions-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
    text-align: center;
}

.versions-list {
    display: grid;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.version-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.version-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--secondary-color);
    transition: all 0.3s ease;
}

.version-item:hover {
    transform: translateX(8px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
}

.version-item:hover::before {
    background: var(--primary-color);
    width: 6px;
}

.version-item.latest::before {
    background: var(--success-color);
}

.version-item.latest:hover::before {
    background: var(--success-color);
}

.version-item.snapshot::before {
    background: var(--warning-color);
}

.version-item.snapshot:hover::before {
    background: var(--warning-color);
}

.version-info {
    flex: 1;
}

.version-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.version-type {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.version-status {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
}

.version-status.download-btn {
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.version-status.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    background: var(--primary-color);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.version-status.download-btn:active {
    transform: translateY(0);
}

.version-status.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.version-status.download-btn:hover::before {
    left: 100%;
}

.download-icon {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.version-status.download-btn:hover .download-icon {
    transform: translateY(2px);
    animation: bounce 0.6s ease;
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }
    40%, 43% {
        transform: translateY(-4px);
    }
    70% {
        transform: translateY(-2px);
    }
    90% {
        transform: translateY(-1px);
    }
}

.latest .version-status {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border-color: var(--success-color);
}

.latest .version-status.download-btn:hover {
    background: var(--success-color);
    color: var(--text-primary);
    border-color: var(--success-color);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.snapshot .version-status {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border-color: var(--warning-color);
}

.snapshot .version-status.download-btn:hover {
    background: var(--warning-color);
    color: var(--text-primary);
    border-color: var(--warning-color);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

/* Footer */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 4rem;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.125rem;
    }
    
    .hero {
        padding: 2rem;
        margin-bottom: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-features {
        gap: 1rem;
    }
    
    .feature {
        flex: 1;
        min-width: calc(50% - 0.5rem);
    }
    
    .version-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .version-status {
        align-self: flex-end;
    }
    
    .footer {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .logo {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .feature {
        min-width: 100%;
    }
}

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

.header,
.hero,
.versions-section {
    animation: fadeInUp 0.6s ease-out;
}

.version-item {
    animation: fadeInUp 0.6s ease-out;
}

.version-item:nth-child(1) { animation-delay: 0.1s; }
.version-item:nth-child(2) { animation-delay: 0.2s; }
.version-item:nth-child(3) { animation-delay: 0.3s; }
.version-item:nth-child(4) { animation-delay: 0.4s; }
.version-item:nth-child(5) { animation-delay: 0.5s; }
.version-item:nth-child(6) { animation-delay: 0.6s; }

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}