/* ============================================
   BLACK-RUST THEME - Красно-чёрная тема
   ============================================ */

:root {
    --br-black: #0a0a0a;
    --br-dark: #121212;
    --br-dark-2: #1a1a1a;
    --br-dark-3: #242424;
    --br-red: #dc2626;
    --br-red-dark: #b91c1c;
    --br-red-light: #ef4444;
    --br-white: #f5f5f5;
    --br-gray: #9ca3af;
    --br-gray-dark: #6b7280;
    --br-green: #22c55e;
    --br-border: #333333;
}

/* ===== ОСНОВА ===== */
body {
    background: var(--br-black);
    color: var(--br-white);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    min-height: 100vh;
}

a {
    color: var(--br-red);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--br-red-light);
}

/* ===== НАВИГАЦИЯ ===== */
.navbar-br {
    background: var(--br-dark);
    border-bottom: 1px solid var(--br-border);
    padding: 0.75rem 0;
}

.navbar-br .navbar-brand {
    display: flex;
    align-items: center;
    font-weight: 800;
    font-size: 1.25rem;
}

.navbar-br .brand-black {
    color: var(--br-white);
}

.navbar-br .brand-rust {
    color: var(--br-red);
}

.navbar-br .nav-link {
    color: var(--br-gray);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.navbar-br .nav-link:hover,
.navbar-br .nav-link.active {
    color: var(--br-white);
    background: var(--br-dark-2);
}

.navbar-br .navbar-toggler {
    border: 1px solid var(--br-border);
    padding: 0.5rem;
}

.navbar-br .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== КНОПКИ ===== */
.btn-br-primary {
    background: linear-gradient(135deg, var(--br-red) 0%, var(--br-red-dark) 100%);
    color: white;
    border: none;
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-br-primary:hover {
    background: linear-gradient(135deg, var(--br-red-light) 0%, var(--br-red) 100%);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-br-outline {
    background: transparent;
    color: var(--br-white);
    border: 1px solid var(--br-border);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-br-outline:hover {
    background: var(--br-dark-2);
    border-color: var(--br-red);
    color: var(--br-white);
}

.btn-br-accent {
    background: var(--br-green);
    color: white;
    border: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-br-accent:hover {
    background: #16a34a;
    color: white;
}

/* ===== HERO СЕКЦИЯ ===== */
.hero-br {
    background: linear-gradient(135deg, var(--br-black) 0%, var(--br-dark) 50%, var(--br-dark-2) 100%);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-br::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(220, 38, 38, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero-br h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-br h1 .text-red {
    color: var(--br-red);
}

.hero-br .subtitle {
    font-size: 1.25rem;
    color: var(--br-gray);
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
}

.hero-stat {
    text-align: center;
}

.hero-stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--br-red);
}

.hero-stat-label {
    font-size: 0.9rem;
    color: var(--br-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ===== КАРТОЧКИ ===== */
.card-br {
    background: var(--br-dark);
    border: 1px solid var(--br-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.2s ease;
}

.card-br:hover {
    border-color: var(--br-red);
    box-shadow: 0 0 20px rgba(220, 38, 38, 0.1);
}

/* ===== СПИСОК СЕРВЕРОВ ===== */
.server-card {
    background: var(--br-dark);
    border: 1px solid var(--br-border);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.2s ease;
    margin-bottom: 1rem;
}

.server-card:hover {
    border-color: var(--br-red);
    transform: translateX(4px);
}

.server-card.online {
    border-left: 3px solid var(--br-green);
}

.server-card.offline {
    border-left: 3px solid var(--br-red);
    opacity: 0.6;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 90px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.online {
    background: var(--br-green);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.status-dot.offline {
    background: var(--br-red);
}

.server-name {
    flex: 1;
    font-weight: 700;
    font-size: 1rem;
    color: var(--br-white);
}

.server-players {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--br-gray);
    font-size: 0.9rem;
}

.players-bar {
    width: 60px;
    height: 4px;
    background: var(--br-dark-3);
    border-radius: 2px;
    overflow: hidden;
}

.players-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--br-red) 0%, var(--br-red-light) 100%);
    border-radius: 2px;
}

.btn-play {
    background: linear-gradient(135deg, var(--br-red) 0%, var(--br-red-dark) 100%);
    color: white;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-play:hover {
    background: linear-gradient(135deg, var(--br-red-light) 0%, var(--br-red) 100%);
    color: white;
    transform: scale(1.02);
}

/* ===== СЕКЦИЯ ОСОБЕННОСТЕЙ ===== */
.features-section {
    padding: 4rem 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title .icon {
    color: var(--br-red);
    margin-right: 0.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--br-dark);
    border: 1px solid var(--br-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    transition: all 0.2s ease;
}

.feature-card:hover {
    border-color: var(--br-red);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--br-red);
    flex-shrink: 0;
}

.feature-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--br-gray);
    margin: 0;
}

/* ===== CTA СЕКЦИЯ ===== */
.cta-section {
    background: linear-gradient(135deg, var(--br-dark) 0%, var(--br-dark-2) 100%);
    border: 1px solid var(--br-border);
    border-radius: 16px;
    padding: 3rem;
    text-align: center;
    margin: 3rem 0;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-section p {
    color: var(--br-gray);
    margin-bottom: 1.5rem;
}

/* ===== ФУТЕР ===== */
.footer-br {
    background: var(--br-dark);
    border-top: 1px solid var(--br-border);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-brand {
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-desc {
    color: var(--br-gray);
    font-size: 0.9rem;
}

.footer-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--br-gray);
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--br-white);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--br-dark-2);
    border: 1px solid var(--br-border);
    border-radius: 8px;
    color: var(--br-gray);
    font-size: 1.25rem;
    transition: all 0.2s ease;
}

.footer-social a:hover {
    background: var(--br-red);
    border-color: var(--br-red);
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--br-border);
    padding-top: 1.5rem;
    margin-top: 2rem;
    text-align: center;
    color: var(--br-gray-dark);
    font-size: 0.85rem;
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 768px) {
    .hero-br h1 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .server-card {
        flex-wrap: wrap;
    }

    .server-name {
        width: 100%;
        order: -1;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== АККОРДЕОН ===== */
.accordion-button {
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background: var(--br-dark-2) !important;
    color: var(--br-white) !important;
}

.accordion-button::after {
    filter: invert(1);
}

.accordion-button:focus {
    border-color: var(--br-red);
    box-shadow: 0 0 0 0.25rem rgba(220, 38, 38, 0.25);
}

.accordion-body {
    background: var(--br-dark-2);
    border-top: 1px solid var(--br-border);
}