/* =============================================================================
   llmVPN — Админ панель (Black & Gold)
   ============================================================================= */

:root {
    --sidebar-width: 280px;
    --top-bar-height: 70px;
}

/* Сайдбар */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(212, 175, 55, 0.2);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.sidebar-header .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: var(--gray);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-item i {
    width: 20px;
    text-align: center;
    color: var(--gold);
}

.nav-item:hover {
    background: rgba(212, 175, 55, 0.05);
    color: var(--gold);
}

.nav-item.active {
    background: rgba(212, 175, 55, 0.1);
    border-left-color: var(--gold);
    color: var(--gold);
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.3);
    border-radius: 10px;
    color: #f43f5e;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: rgba(244, 63, 94, 0.2);
    transform: translateX(-5px);
}

/* Основной контент */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--black);
}

/* Верхняя панель */
.top-bar {
    position: sticky;
    top: 0;
    height: var(--top-bar-height);
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 900;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--gold);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

#pageTitle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 50px;
    color: var(--success);
    font-size: 0.875rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.admin-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gold);
    font-weight: 600;
}

.admin-info i {
    font-size: 1.5rem;
}

/* Контент секции */
.content-section {
    display: none;
    padding: 2rem;
    animation: fadeIn 0.3s ease;
}

.content-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Карточки статистики */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card-large {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: rgba(212, 175, 55, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.stat-card-large:hover {
    background: rgba(212, 175, 55, 0.08);
    border-color: var(--gold);
    transform: translateY(-5px);
    box-shadow: var(--glow-gold);
}

.stat-card-large .stat-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-gold);
    border-radius: 16px;
    font-size: 2rem;
    color: var(--black);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold);
}

.stat-label {
    color: var(--gray);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.dashboard-card {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.card-header h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gold);
    font-size: 1.125rem;
}

.card-content {
    padding: 1.5rem;
}

.connections-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.connection-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    transition: background 0.3s ease;
}

.connection-item:hover {
    background: rgba(212, 175, 55, 0.05);
}

.connection-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
    font-weight: 700;
}

.connection-info {
    flex: 1;
}

.connection-name {
    color: var(--cream);
    font-weight: 600;
}

.connection-time {
    color: var(--gray);
    font-size: 0.875rem;
}

.connection-status {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.connection-status.online {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.connection-status.offline {
    background: rgba(100, 116, 139, 0.2);
    color: var(--gray);
}

/* Секция: Клиенты */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    color: var(--gold);
    font-size: 1.75rem;
}

.clients-table-container {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    overflow: hidden;
}

.clients-table {
    width: 100%;
    border-collapse: collapse;
}

.clients-table th,
.clients-table td {
    padding: 1.25rem;
    text-align: left;
}

.clients-table th {
    background: rgba(212, 175, 55, 0.1);
    color: var(--gold);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.clients-table td {
    border-bottom: 1px solid rgba(212, 175, 55, 0.05);
    color: var(--cream);
}

.clients-table tr:hover {
    background: rgba(212, 175, 55, 0.05);
}

/* Кнопки копирования в таблице клиентов */
.copy-btn {
    opacity: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 175, 55, 0.2);
    border: none;
    border-radius: 4px;
    color: var(--gold);
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    min-width: 24px;
    flex-shrink: 0;
}

.copy-btn i {
    font-size: 0.7rem;
}

.copy-btn:hover {
    background: rgba(212, 175, 55, 0.4);
    transform: scale(1.1);
}

/* Показываем кнопку только при наведении на родительский элемент */
.client-name-wrapper:hover .copy-btn,
.client-uuid-wrapper:hover .copy-btn {
    opacity: 1;
}

.uuid-code {
    background: rgba(212, 175, 55, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    color: var(--gold);
    font-size: 0.75rem;
    word-break: break-all;
    max-width: 280px;
    display: inline-block;
}

.client-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 8px;
    color: var(--gold);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-icon:hover {
    background: var(--gradient-gold);
    color: var(--black);
    transform: scale(1.1);
}

.btn-icon.delete {
    background: rgba(244, 63, 94, 0.1);
    border-color: rgba(244, 63, 94, 0.3);
    color: #f43f5e;
}

.btn-icon.delete:hover {
    background: #f43f5e;
    color: var(--white);
}

/* QR Коды */
.qr-generate-container {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
}

.qr-input-group {
    margin-bottom: 2rem;
}

.qr-input-group label {
    display: block;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.qr-input-group select {
    width: 100%;
    max-width: 400px;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 12px;
    color: var(--cream);
    font-size: 1rem;
    cursor: pointer;
}

.qr-input-group select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

.qr-display {
    margin: 2rem 0;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder {
    color: var(--gray);
}

.qr-placeholder i {
    font-size: 5rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

#qrCanvas {
    border-radius: 16px;
    padding: 2rem;
    background: var(--white);
    box-shadow: var(--glow-gold);
}

.qr-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Настройки */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.settings-card {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    padding: 2rem;
}

.settings-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gold);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--cream);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group select {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 12px;
    color: var(--cream);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

.form-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--gold);
    margin-right: 0.5rem;
}

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

.security-card {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.security-card:hover {
    background: rgba(212, 175, 55, 0.06);
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-5px);
}

.security-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-gold);
    border-radius: 50%;
    font-size: 2.5rem;
    color: var(--black);
}

.security-card h3 {
    color: var(--gold);
    margin-bottom: 0.5rem;
}

.security-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.status-badge.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.status-badge.warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

/* Логи */
.log-container {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    overflow: hidden;
}

.log-tabs {
    display: flex;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.log-tab {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: var(--gray);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.log-tab:hover {
    background: rgba(212, 175, 55, 0.05);
    color: var(--cream);
}

.log-tab.active {
    background: rgba(212, 175, 55, 0.1);
    color: var(--gold);
    border-bottom-color: var(--gold);
}

.log-content {
    max-height: 500px;
    overflow-y: auto;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
}

.log-stats {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.log-stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 12px;
    color: var(--gold);
    font-weight: 600;
}

.log-stat-badge i {
    font-size: 1.25rem;
}

.log-stat-badge .stat-count {
    color: var(--cream);
    font-weight: 400;
    font-size: 0.875rem;
}

.log-stat-badge .stat-period {
    color: var(--gray);
    font-size: 0.75rem;
    margin-left: 0.5rem;
    font-weight: 400;
}

.log-period-selector select {
    padding: 0.5rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    color: var(--gold);
    font-size: 0.875rem;
    cursor: pointer;
    outline: none;
}

.log-period-selector select:hover {
    background: rgba(212, 175, 55, 0.2);
}

.log-date-selector {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.log-date-selector label {
    color: var(--gold);
    font-size: 0.875rem;
    font-weight: 600;
}

.log-date-selector input[type="date"] {
    padding: 0.5rem 0.75rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 6px;
    color: var(--gold);
    font-size: 0.875rem;
    outline: none;
    cursor: pointer;
}

.log-date-selector input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.log-date-selector select {
    padding: 0.5rem 0.75rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 6px;
    color: var(--gold);
    font-size: 0.875rem;
    outline: none;
    cursor: pointer;
    min-width: 150px;
}

.log-date-selector select:hover {
    background: rgba(212, 175, 55, 0.2);
}

.log-date-selector select option {
    background: #0a0a0a;
    color: var(--gold);
}

.log-period-selector select option {
    background: #0a0a0a;
    color: var(--gold);
}

#logPre {
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--gray-light);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.log-actions {
    display: flex;
    gap: 1rem;
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--black-light);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 24px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.3s ease;
    box-shadow: var(--glow-gold-strong);
}

.modal-medium {
    max-width: 600px;
}

.modal-small {
    max-width: 400px;
}

.modal-content h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gold);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Уведомления */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--black-light);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 4000;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-color: var(--success);
}

.notification.success .notification-icon {
    color: var(--success);
}

.notification.error {
    border-color: #f43f5e;
}

.notification.error .notification-icon {
    color: #f43f5e;
}

.notification-icon {
    font-size: 1.5rem;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .top-bar {
        padding: 0 1rem;
    }

    .stats-cards {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .log-actions,
    .qr-actions {
        flex-direction: column;
    }

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