/* Общие стили для единообразия дизайна всех страниц */

/* CSS переменные для единообразия */
:root {
    /* Основные цвета */
    --primary-color: #4ade80;
    --primary-dark: #22c55e;
    --primary-darker: #16a34a;
    --secondary-color: #6b7280;
    --accent-color: #3b82f6;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --success-color: #10b981;
    
    /* Фоновые цвета */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2a2a2a;
    --bg-tertiary: #404040;
    --bg-gradient: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    --bg-gradient-primary: linear-gradient(135deg, #4ade80, #22c55e);
    --bg-gradient-secondary: linear-gradient(135deg, #6b7280, #4b5563);
    --bg-gradient-danger: linear-gradient(135deg, #ef4444, #dc2626);
    --bg-gradient-accent: linear-gradient(135deg, #3b82f6, #1d4ed8);
    
    /* Текстовые цвета */
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-muted: #6b7280;
    --text-inverse: #1a1a1a;
    
    /* Границы и тени */
    --border-color: #404040;
    --border-radius: 10px;
    --border-radius-lg: 15px;
    --border-radius-xl: 20px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-primary: 0 10px 25px rgba(74, 222, 128, 0.3);
    --shadow-secondary: 0 10px 25px rgba(107, 114, 128, 0.3);
    --shadow-danger: 0 10px 25px rgba(239, 68, 68, 0.3);
    --shadow-accent: 0 10px 25px rgba(59, 130, 246, 0.3);
    
    /* Размеры */
    --container-max-width: 1400px;
    --sidebar-width: 300px;
    --header-height: 80px;
    
    /* Анимации */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* =========================================
   Performance / Energy saving
   ========================================= */

/* Respect OS-level reduced motion */
@media (prefers-reduced-motion: reduce) {
    html:focus-within {
        scroll-behavior: auto;
    }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        transition-delay: 0ms !important;
    }
}

/* Localhost (or manual) lightweight mode: less blur/animations */
html.energy-saver * {
    scroll-behavior: auto;
}

html.energy-saver .luxury-decoration,
html.energy-saver [class^="luxury-decoration"] {
    display: none !important;
}

/* Most expensive visual effects */
html.energy-saver .glow,
html.energy-saver .glow-hover:hover {
    box-shadow: none !important;
}

html.energy-saver * {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* Доступность: заметный фокус для клавиатуры */
:where(a, button, [role="button"], [tabindex]:not([tabindex="-1"])):focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 3px;
}

:where(input, select, textarea):focus-visible {
    outline: none;
}

/* Общие стили для страниц */
.page-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 2rem;
}

.page-header {
    background: var(--bg-gradient);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark), var(--primary-darker));
}

.page-title {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Статистические карточки */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.stat-card {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card.is-clickable {
    cursor: pointer;
}

.stat-card.is-clickable:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(74, 222, 128, 0.2);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Кнопки */
.btn {
    background: var(--bg-gradient-primary);
    color: var(--text-inverse);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-gradient-secondary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    box-shadow: var(--shadow-secondary);
}

.btn-danger {
    background: var(--bg-gradient-danger);
    color: var(--text-primary);
}

.btn-danger:hover {
    box-shadow: var(--shadow-danger);
}

.btn-accent {
    background: var(--bg-gradient-accent);
    color: var(--text-primary);
}

.btn-accent:hover {
    box-shadow: var(--shadow-accent);
}

.btn-small {
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
}

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

.form-group label {
    display: block;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.form-hint::before {
    content: "💡 ";
    margin-right: 0.25rem;
}

/* Переключатели */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    transition: var(--transition-normal);
    border-radius: 30px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition-normal);
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(30px);
}

/* Карточки */
.card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Вкладки */
.tabs {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn.active {
    background: var(--bg-gradient-primary);
    color: var(--text-inverse);
    box-shadow: 0 5px 15px rgba(74, 222, 128, 0.3);
}

.tab-btn:hover:not(.active) {
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary-color);
}

.tab-content {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Сообщения */
.success-message {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

.warning-message {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
    color: var(--warning-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

.info-message {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

/* Загрузка */
.loading {
    display: none !important;
    text-align: center;
    padding: 2rem;
}

.loading.show {
    display: none !important;
}

.spinner {
    display: none !important;
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-tertiary);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Пустые состояния */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.empty-state h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.empty-state p {
    margin-bottom: 2rem;
    line-height: 1.5;
}

/* Пагинация */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.pagination button {
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.pagination button:hover:not(:disabled) {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .current-page {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
}

/* Адаптивность */
@media (max-width: 768px) {
    .page-container {
        padding: 1rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}