/* ==================== RESET & BASE ==================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0a0a;
    --bg2: #141414;
    --bg3: #1e1e1e;
    --card: #161616;
    --border: #2a2a2a;
    --text: #e8e8e8;
    --text2: #888888;
    --accent: #7c3aed;
    --accent2: #a78bfa;
    --accent-glow: rgba(124, 58, 237, 0.3);
    --green: #10b981;
    --red: #ef4444;
    --orange: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0a0a0a;
    color: #e8e8e8;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--accent2); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

/* ==================== LAYOUT ==================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }

/* ==================== NAV ==================== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.nav-logo img { height: 32px; width: 32px; margin-right: 8px; vertical-align: middle; border-radius: 50%; object-fit: cover; }
.nav .container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-size: 1.5rem; font-weight: 800; color: var(--text); letter-spacing: 2px; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: var(--text2); font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600;
    font-size: 0.95rem; border: none; cursor: pointer; transition: all 0.2s;
    text-decoration: none;
}
.btn-primary {
    background: var(--accent); color: #fff;
    box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover { background: #6d28d9; color: #fff; transform: translateY(-1px); }
.btn-outline {
    background: transparent; color: var(--accent2);
    border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #e05555; color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: #00a381; color: #fff; }

/* ==================== HERO ==================== */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 800px; height: 800px; border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}
.hero h1 {
    font-size: 3.5rem; font-weight: 800; line-height: 1.15;
    margin-bottom: 20px; position: relative;
}
.hero h1 span { color: var(--accent2); }
.hero p { font-size: 1.2rem; color: var(--text2); max-width: 600px; margin: 0 auto 32px; position: relative; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; position: relative; }

/* ==================== CARDS ==================== */
.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 32px;
    transition: all 0.3s;
}
.card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--text2); font-size: 0.9rem; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* ==================== SECTION HEADER ==================== */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 2.2rem; font-weight: 700; margin-bottom: 12px; }
.section-header p { color: var(--text2); font-size: 1.05rem; }

/* ==================== STEPS ==================== */
.steps { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }
.step {
    text-align: center; flex: 1; min-width: 200px; max-width: 260px;
    padding: 24px;
}
.step-num {
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--accent); color: #fff; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px; font-size: 1.2rem;
}
.step h4 { margin-bottom: 8px; }
.step p { color: var(--text2); font-size: 0.9rem; }

/* ==================== PRICING ==================== */
.pricing-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 32px; text-align: center;
    transition: all 0.3s; position: relative;
}
.pricing-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.pricing-card.featured { border-color: var(--accent); }
.pricing-card.featured::before {
    content: 'Популярный'; position: absolute; top: -12px; left: 50%;
    transform: translateX(-50%); background: var(--accent); color: #fff;
    padding: 4px 16px; border-radius: 20px; font-size: 0.8rem; font-weight: 600;
}
.pricing-card h3 { font-size: 1.3rem; margin-bottom: 8px; }
.pricing-price { font-size: 2.5rem; font-weight: 800; margin: 16px 0; }
.pricing-price span { font-size: 1rem; color: var(--text2); font-weight: 400; }
.pricing-features { list-style: none; margin: 20px 0; text-align: left; }
.pricing-features li { padding: 8px 0; color: var(--text2); font-size: 0.9rem; border-bottom: 1px solid var(--border); }
.pricing-features li::before { content: '✓ '; color: var(--green); font-weight: 700; }

/* ==================== FAQ ==================== */
.faq-item {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); margin-bottom: 12px;
    overflow: hidden;
}
.faq-q {
    padding: 20px 24px; cursor: pointer; font-weight: 600;
    display: flex; justify-content: space-between; align-items: center;
    transition: background 0.2s;
}
.faq-q:hover { background: var(--bg3); }
.faq-q::after { content: '+'; font-size: 1.5rem; color: var(--accent2); transition: transform 0.3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { padding: 0 24px 20px; color: var(--text2); font-size: 0.95rem; display: none; }
.faq-item.open .faq-a { display: block; }

/* ==================== DEVICES ==================== */
.devices { display: flex; gap: 40px; justify-content: center; flex-wrap: wrap; }
.device { text-align: center; }
.device-icon { font-size: 2.5rem; margin-bottom: 8px; }
.device p { color: var(--text2); font-size: 0.9rem; }

/* ==================== MAIN CONTENT ==================== */
.main-content { flex: 1; }

/* ==================== FOOTER ==================== */
.footer {
    background: var(--bg2); border-top: 1px solid var(--border);
    padding: 32px 0; text-align: center; color: var(--text2); font-size: 0.85rem;
    margin-top: auto;
}
.footer-links { display: flex; gap: 24px; justify-content: center; margin-bottom: 12px; flex-wrap: wrap; }

/* ==================== AUTH PAGES ==================== */
.auth-page {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 24px;
}
.auth-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 48px; width: 100%; max-width: 420px;
}
.auth-card h2 { text-align: center; margin-bottom: 32px; font-size: 1.5rem; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 0.9rem; color: var(--text2); }
.form-group input, .form-group select {
    width: 100%; padding: 12px 16px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--bg); color: var(--text);
    font-size: 0.95rem; transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); }

/* ==================== DASHBOARD ==================== */
.dash-header {
    padding: 100px 0 40px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}
.dash-header h1 { font-size: 1.8rem; }
.dash-header p { color: var(--text2); }

.key-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px; margin-bottom: 16px;
}
.key-card h4 { margin-bottom: 8px; }
.key-link {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px; margin: 12px 0;
    font-family: 'Courier New', monospace; font-size: 0.8rem;
    word-break: break-all; color: var(--accent2);
}
.key-meta { color: var(--text2); font-size: 0.85rem; margin-top: 8px; }
.key-actions { display: flex; gap: 8px; margin-top: 12px; }

/* ==================== ADMIN ==================== */
.admin-nav {
    display: flex; gap: 12px; margin-bottom: 32px; flex-wrap: wrap;
}
.admin-nav a {
    padding: 10px 20px; background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text2); font-size: 0.9rem;
}
.admin-nav a:hover, .admin-nav a.active { border-color: var(--accent); color: var(--accent); }

.stat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 20px; text-align: center;
}
.stat-card .num { font-size: 2rem; font-weight: 800; color: var(--accent2); }
.stat-card .label { color: var(--text2); font-size: 0.85rem; margin-top: 4px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { color: var(--text2); font-weight: 600; background: var(--bg2); }
td { color: var(--text); }

.badge {
    display: inline-block; padding: 4px 10px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 600;
}
.badge-green { background: rgba(16,185,129,0.15); color: var(--green); }
.badge-red { background: rgba(239,68,68,0.15); color: var(--red); }
.badge-orange { background: rgba(245,158,11,0.15); color: var(--orange); }
.badge-purple { background: rgba(124,58,237,0.15); color: var(--accent2); }

/* ==================== ALERTS ==================== */
.alert {
    padding: 14px 20px; border-radius: var(--radius-sm); margin-bottom: 16px;
    font-size: 0.9rem; border: 1px solid;
    animation: alertFadeIn 0.3s ease;
}
.alert.fade-out { animation: alertFadeOut 0.5s ease forwards; }
@keyframes alertFadeIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes alertFadeOut { from { opacity: 1; } to { opacity: 0; transform: translateY(-10px); } }
.alert-success { background: rgba(16,185,129,0.1); border-color: var(--green); color: var(--green); }
.alert-error { background: rgba(239,68,68,0.1); border-color: var(--red); color: var(--red); }
.alert-warning { background: rgba(245,158,11,0.1); border-color: var(--orange); color: var(--orange); }

/* ==================== GAUGES ==================== */
.gauge-wrap { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.gauge { text-align: center; flex: 1; min-width: 100px; }
.gauge-circle { position: relative; width: 80px; height: 80px; margin: 0 auto 8px; }
.gauge-circle svg { transform: rotate(-90deg); }
.gauge-circle .value { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-weight: 700; font-size: 0.85rem; }
.gauge .label { color: var(--text2); font-size: 0.75rem; }
.server-tab { cursor: pointer; padding: 8px 16px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text2); font-size: 0.85rem; }
.server-tab.active { border-color: var(--accent); color: var(--accent); }
.server-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

/* ==================== MODAL ==================== */
.modal-overlay {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7); z-index: 200; align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 32px; max-width: 480px; width: 90%;
}
.modal h3 { margin-bottom: 20px; }

/* ==================== MOBILE NAV TOGGLE ==================== */
.nav-toggle {
    display: none; background: none; border: none; cursor: pointer;
    width: 32px; height: 32px; position: relative; padding: 0;
}
.nav-toggle span {
    display: block; width: 22px; height: 2px; background: var(--text);
    position: absolute; left: 5px; transition: all 0.3s;
}
.nav-toggle span:nth-child(1) { top: 8px; }
.nav-toggle span:nth-child(2) { top: 15px; }
.nav-toggle span:nth-child(3) { top: 22px; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .hero { padding: 120px 0 60px; }
    .grid-4, .grid-3 { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .section { padding: 48px 0; }
    .steps { flex-direction: column; align-items: center; }
    .pricing-cards { flex-direction: column; }

    .nav-toggle { display: block; }
    .nav-links {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(10,10,10,0.98); backdrop-filter: blur(20px);
        flex-direction: column; padding: 16px 24px; gap: 12px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 8px 0; }

    .dash-header { padding: 80px 0 24px; margin-bottom: 24px; }
    .dash-header h1 { font-size: 1.4rem; }

    .admin-nav { gap: 8px; }
    .admin-nav a { padding: 8px 12px; font-size: 0.8rem; }

    .stat-cards { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 14px; }
    .stat-card .num { font-size: 1.5rem; }

    table { font-size: 0.8rem; }
    th, td { padding: 8px 10px; }

    .key-card { padding: 16px; }
    .key-link { font-size: 0.7rem; padding: 8px; }
    .key-actions { flex-wrap: wrap; }

    .footer-links { flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }
    .container { padding: 0 16px; }
    .auth-card { padding: 32px 24px; }
    .stat-cards { grid-template-columns: 1fr; }
    .admin-nav { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
    .admin-nav a { white-space: nowrap; flex-shrink: 0; }
}