/* CSS Переменные для тем */
:root[data-theme="light"] {
    --bg: #ffffff;
    --nav-bg: rgba(255, 255, 255, 0.8);
    --card-bg: #f8fafc;
    --card-border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --code-bg: #1e293b;
    --code-text: #f8fafc;
    --terminal-bar: #334155;
}

:root[data-theme="dark"] {
    --bg: #0b0f1a;
    --nav-bg: rgba(11, 15, 26, 0.8);
    --card-bg: #161e2d;
    --card-border: #242f41;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --code-bg: #000000;
    --code-text: #e2e8f0;
    --terminal-bar: #1e293b;
}

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

body {
    background-color: var(--bg);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Навигация */
.navbar {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: var(--nav-bg); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border); padding: 16px 0;
}

.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.15rem; font-weight: 800; }
.logo-accent { color: var(--accent); }
.logo span { font-weight: 400; opacity: 0.5; font-size: 0.85rem; margin-left: 8px; text-transform: uppercase; letter-spacing: 1px; }

.nav-menu { display: flex; align-items: center; gap: 24px; }
.nav-menu a { text-decoration: none; color: var(--text-secondary); font-weight: 500; font-size: 0.9rem; transition: color 0.2s; }
.nav-menu a:hover { color: var(--accent); }

.theme-btn {
    background: none; border: 1px solid var(--card-border); color: var(--text-secondary);
    padding: 8px; border-radius: 8px; cursor: pointer; display: flex; align-items: center;
}
.theme-btn svg { width: 18px; height: 18px; }
[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

/* Hero */
.hero { padding: 160px 0 80px; text-align: center; }
.hero-title { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; letter-spacing: -1.5px; margin-bottom: 24px; }
.hero-title span { color: var(--accent); }
.hero-subtitle { font-size: 1.15rem; color: var(--text-secondary); max-width: 700px; margin: 0 auto; }

/* Карточки */
.branches { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin-bottom: 100px; }
.branch-card {
    background: var(--card-bg); border: 1px solid var(--card-border);
    padding: 32px; border-radius: 16px; display: flex; flex-direction: column;
    transition: transform 0.2s, border-color 0.2s;
}
.branch-card:hover { transform: translateY(-4px); border-color: var(--accent); }

.card-meta { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); font-weight: 700; margin-bottom: 16px; }
.card-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.card-desc { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 24px; flex-grow: 1; }

.card-features { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.feat-item { font-size: 0.75rem; font-weight: 500; color: var(--text-primary); background: var(--card-border); padding: 4px 12px; border-radius: 100px; }

.card-status { font-size: 0.85rem; color: var(--text-secondary); font-style: italic; margin-bottom: 24px; }

.btn-link {
    display: inline-block; padding: 12px 24px; background: var(--accent); color: white;
    text-decoration: none; border-radius: 10px; font-weight: 600; text-align: center;
}
.btn-link.disabled { background: var(--card-border); color: var(--text-secondary); cursor: not-allowed; }

/* Конфигурация */
.config-section { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 24px; padding: 60px; margin-bottom: 100px; }
.config-header { margin-bottom: 40px; }
.config-header h2 { font-size: 2rem; margin-bottom: 12px; }
.config-header p { color: var(--text-secondary); }

.code-terminal { background: var(--code-bg); border-radius: 12px; overflow: hidden; }
.terminal-bar { background: var(--terminal-bar); padding: 12px 20px; display: flex; align-items: center; }
.term-dots { display: flex; gap: 8px; }
.term-dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.1); }
.term-tab { margin-left: 20px; font-size: 0.75rem; font-family: 'JetBrains Mono', monospace; opacity: 0.5; }
.terminal-content { padding: 24px; overflow-x: auto; }
.terminal-content::-webkit-scrollbar { height: 6px; }
.terminal-content::-webkit-scrollbar-track { background: var(--code-bg); }
.terminal-content::-webkit-scrollbar-thumb { background: var(--terminal-bar); border-radius: 10px; }
.terminal-content::-webkit-scrollbar-thumb:hover { background: var(--accent); }
.terminal-content pre { font-family: 'JetBrains Mono', monospace; color: var(--code-text); font-size: 0.95rem; white-space: pre; }
.terminal-content .c { color: #64748b; }

/* Футер */
.footer { padding: 60px 0; border-top: 1px solid var(--card-border); color: var(--text-secondary); font-size: 0.9rem; }
.footer-wrap { display: flex; justify-content: space-between; align-items: center; }
.footer-tags { display: flex; align-items: center; gap: 16px; }
.sep { width: 4px; height: 4px; background: var(--card-border); border-radius: 50%; }

@media (max-width: 768px) {
    .config-section { padding: 32px; }
    .footer-wrap { flex-direction: column; gap: 24px; text-align: center; }
}