/* ============================================
   СТИЛИ АДМИН-ПАНЕЛИ РАСПИСАНИЯ ЯМК
   ============================================ */

/* === ПЕРЕМЕННЫЕ АДМИНКИ === */
:root {
    /* Цвета админки (более строгие) */
    --admin-color-primary: #2c3e50;
    --admin-color-secondary: #34495e;
    --admin-color-accent: #3498db;
    --admin-color-danger: #e74c3c;
    --admin-color-success: #27ae60;
    --admin-color-warning: #f39c12;
    --admin-color-light: #ecf0f1;
    --admin-color-border: #bdc3c7;
    --admin-color-text: #2c3e50;
    --admin-color-text-light: #7f8c8d;
    --admin-color-white: #ffffff;
    --admin-color-sidebar: #2c3e50;
    --admin-color-header: #34495e;
    
    /* Размеры */
    --admin-sidebar-width: 250px;
    --admin-header-height: 70px;
    --admin-border-radius: 8px;
    --admin-box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --admin-transition: all 0.3s ease;
}

/* === СБРОС И БАЗОВЫЕ СТИЛИ === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.admin-body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: var(--admin-color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* === КОНТЕЙНЕРЫ === */
.admin-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === ШАПКА АДМИНКИ === */
.admin-header {
    background: var(--admin-color-header);
    color: white;
    height: var(--admin-header-height);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.admin-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 20px;
}

.admin-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-logo-icon {
    font-size: 1.8rem;
    color: var(--admin-color-accent);
}

.admin-logo-text h1 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.admin-logo-text p {
    font-size: 0.8rem;
    opacity: 0.8;
}

.admin-user-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.admin-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--admin-color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.user-name {
    font-weight: 500;
}

.logout-button {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: var(--admin-border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    transition: var(--admin-transition);
}

.logout-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* === БОКОВАЯ ПАНЕЛЬ === */
.admin-sidebar {
    position: fixed;
    top: var(--admin-header-height);
    left: 0;
    bottom: 0;
    width: var(--admin-sidebar-width);
    background: var(--admin-color-sidebar);
    color: white;
    overflow-y: auto;
    z-index: 999;
    transition: var(--admin-transition);
}

.sidebar-menu {
    padding: 20px 0;
}

.sidebar-section {
    margin-bottom: 25px;
}

.sidebar-section h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    padding: 0 25px;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 1px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 12px 25px;
    transition: var(--admin-transition);
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border-left-color: var(--admin-color-accent);
}

.sidebar-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: var(--admin-color-accent);
}

.sidebar-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-link .badge {
    margin-left: auto;
    background: var(--admin-color-accent);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* === ОСНОВНОЙ КОНТЕНТ === */
.admin-main {
    margin-left: var(--admin-sidebar-width);
    margin-top: var(--admin-header-height);
    padding: 30px;
    min-height: calc(100vh - var(--admin-header-height));
    transition: var(--admin-transition);
}

/* === КАРТОЧКИ СТАТИСТИКИ === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: var(--admin-border-radius);
    padding: 25px;
    box-shadow: var(--admin-box-shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--admin-transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.stat-icon.primary { background: var(--admin-color-primary); }
.stat-icon.secondary { background: var(--admin-color-accent); }
.stat-icon.success { background: var(--admin-color-success); }
.stat-icon.warning { background: var(--admin-color-warning); }
.stat-icon.danger { background: var(--admin-color-danger); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--admin-color-text);
    line-height: 1;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--admin-color-text-light);
    margin-bottom: 8px;
}

.stat-change {
    font-size: 0.85rem;
    font-weight: 600;
}

.stat-change.positive {
    color: var(--admin-color-success);
}

.stat-change.negative {
    color: var(--admin-color-danger);
}

/* === СЕКЦИИ === */
.admin-section {
    background: white;
    border-radius: var(--admin-border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--admin-box-shadow);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--admin-color-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-actions {
    display: flex;
    gap: 10px;
}

/* === КНОПКИ АДМИНКИ === */
.admin-button {
    padding: 10px 20px;
    border-radius: var(--admin-border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--admin-transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.button-primary {
    background: var(--admin-color-accent);
    color: white;
}

.button-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.button-secondary {
    background: var(--admin-color-light);
    color: var(--admin-color-text);
    border: 1px solid var(--admin-color-border);
}

.button-secondary:hover {
    background: var(--admin-color-border);
}

.button-success {
    background: var(--admin-color-success);
    color: white;
}

.button-success:hover {
    background: #229954;
}

.button-danger {
    background: var(--admin-color-danger);
    color: white;
}

.button-danger:hover {
    background: #c0392b;
}

.button-small {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.button-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* === ФОРМЫ АДМИНКИ === */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    color: var(--admin-color-text);
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-label.required::after {
    content: ' *';
    color: var(--admin-color-danger);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--admin-color-border);
    border-radius: var(--admin-border-radius);
    font-size: 1rem;
    transition: var(--admin-transition);
    background: white;
}

.form-control:focus {
    border-color: var(--admin-color-accent);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
    outline: none;
}

.form-control.error {
    border-color: var(--admin-color-danger);
}

.form-text {
    font-size: 0.85rem;
    color: var(--admin-color-text-light);
    margin-top: 5px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* === ТАБЛИЦЫ АДМИНКИ === */
.admin-table-container {
    overflow-x: auto;
    margin: 20px 0;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.admin-table th {
    background: var(--admin-color-light);
    color: var(--admin-color-text);
    font-weight: 600;
    text-align: left;
    padding: 15px;
    border-bottom: 2px solid var(--admin-color-border);
    white-space: nowrap;
}

.admin-table td {
    padding: 15px;
    border-bottom: 1px solid var(--admin-color-border);
    vertical-align: middle;
}

.admin-table tr:hover {
    background: #f8f9fa;
}

.table-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* === УВЕДОМЛЕНИЯ === */
.notification {
    position: fixed;
    top: 90px;
    right: 20px;
    background: white;
    padding: 15px 20px;
    border-radius: var(--admin-border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 2000;
    transform: translateX(150%);
    transition: transform 0.3s ease;
    max-width: 400px;
    border-left: 4px solid var(--admin-color-accent);
}

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

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

.notification.error {
    border-left-color: var(--admin-color-danger);
}

.notification.warning {
    border-left-color: var(--admin-color-warning);
}

.notification i {
    font-size: 1.2rem;
}

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

.notification.error i {
    color: var(--admin-color-danger);
}

.notification.warning i {
    color: var(--admin-color-warning);
}

/* === МОДАЛЬНЫЕ ОКНА === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: white;
    border-radius: var(--admin-border-radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: modal-appear 0.3s ease;
}

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

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--admin-color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--admin-color-text);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--admin-color-text-light);
    transition: var(--admin-transition);
    padding: 5px;
}

.modal-close:hover {
    color: var(--admin-color-danger);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--admin-color-border);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* === ЗАГРУЗКА === */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 4000;
    flex-direction: column;
    gap: 20px;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--admin-color-light);
    border-top-color: var(--admin-color-accent);
    border-radius: 50%;
    animation: spinner-rotate 1s linear infinite;
}

@keyframes spinner-rotate {
    to { transform: rotate(360deg); }
}

/* === АДАПТИВНОСТЬ === */
@media (max-width: 1024px) {
    .admin-sidebar {
        width: 70px;
    }
    
    .admin-sidebar .sidebar-section h3,
    .admin-sidebar .sidebar-link span,
    .admin-sidebar .sidebar-link .badge {
        display: none;
    }
    
    .admin-sidebar .sidebar-link {
        justify-content: center;
        padding: 15px;
    }
    
    .admin-sidebar .sidebar-link i {
        font-size: 1.3rem;
        margin: 0;
    }
    
    .admin-main {
        margin-left: 70px;
    }
}

@media (max-width: 768px) {
    .admin-header-content {
        padding: 0 15px;
    }
    
    .admin-user-info .user-name {
        display: none;
    }
    
    .admin-main {
        padding: 20px 15px;
        margin-left: 0;
    }
    
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: block !important;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .section-actions {
        width: 100%;
        justify-content: flex-start;
    }
}

/* === УТИЛИТЫ === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-30 { margin-top: 30px; }
.mb-30 { margin-bottom: 30px; }

.hidden { display: none !important; }

/* === КНОПКА БУРГЕР-МЕНЮ (для мобильных) === */
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}