:root {
    --bg-main: #050505;
    --card-bg: #111111;
    --card-border: #222222;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.2);
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-gold: #FFC857;
    --card-accent: var(--accent);
    --error-color: #ef4444;
    --success-color: #10b981;
    --glow: 0 0 20px rgba(59, 130, 246, 0.15);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    background-image: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.1), transparent 50%);
    color: var(--text-primary);
    line-height: 1.5;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; width: 100%; }

/* --- Header --- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    padding: 16px 24px;
    background: rgba(17, 17, 17, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    position: sticky;
    top: 20px;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-bracket {
    color: var(--text-secondary);
    font-weight: 300;
    margin: 0 6px;
}

.logo-dot { color: var(--accent); }

.cursor {
    display: inline-block;
    width: 8px;
    height: 1.2rem;
    background-color: var(--accent);
    animation: blink 1s step-end infinite;
    margin-left: 4px;
}

@keyframes blink { 50% { opacity: 0; } }

.main-nav {
    display: flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.4);
    padding: 6px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.main-nav a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
}

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

.header-github-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.header-github-btn:hover { background: rgba(255, 255, 255, 0.05); }

@media (max-width: 768px) {
    .main-header {
        flex-direction: column;
        gap: 16px;
        padding: 16px;
    }
    .header-actions { display: none; }
    .main-nav { flex-wrap: wrap; justify-content: center; }
}

/* --- Hero (общая для нескольких страниц) --- */
.hero { margin-bottom: 60px; max-width: 600px; }
.hero h1 { font-size: 3rem; font-weight: 700; margin-bottom: 16px; line-height: 1.1; letter-spacing: -0.03em; }
.hero p { color: var(--text-secondary); font-size: 1.1rem; }

/* --- Footer --- */
footer {
    text-align: center;
    padding: 30px 0;
    border-top: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 60px;
}

footer .footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
footer .footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}
footer .footer-links a:hover { color: var(--accent); }
footer .footer-divider { color: var(--text-secondary); opacity: 0.5; }
footer p { color: var(--text-secondary); font-size: 0.85rem; text-align: center; }