:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --primary-color: #3b82f6;
    --secondary-color: #64748b;
    --card-bg: rgba(30, 41, 59, 0.7);
    --hover-bg: rgba(51, 65, 85, 0.8);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 20%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
header {
    text-align: center;
    padding: 4rem 0;
    position: relative;
}

.lang-switch {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.lang-switch:hover {
    background: rgba(255, 255, 255, 0.1);
}

h1 {
    font-size: 4rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    font-weight: 800;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 1rem;
    border: var(--glass-border);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: var(--hover-bg);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

/* Downloads */
.downloads {
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 3rem;
    border-radius: 1.5rem;
    border: var(--glass-border);
}

.downloads h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    justify-content: center;
}

.download-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 1rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.download-btn:hover {
    background: #2563eb;
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.os-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.version-tag {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: 0.25rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 99px;
}

footer {
    text-align: center;
    padding: 4rem 0;
    color: var(--secondary-color);
    font-size: 0.9rem;
}