/* Общие стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --text-color: #eaeaea;
    --border-color: #333;
    --success-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Экран входа */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Убираем прокрутку на экране авторизации */
body.login-active {
    overflow: hidden;
    height: 100vh;
}

#login-screen.active {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    overflow: hidden;
}

.login-card {
    background: var(--secondary-color);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 100%;
    max-height: calc(100vh - 30px);
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

.login-card h1 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 24px;
    flex-shrink: 0;
}

.login-card form {
    flex-shrink: 0;
}

.login-options {
    flex-shrink: 0;
}

#login-error {
    flex-shrink: 0;
}

/* Формы */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background: var(--primary-color);
    color: var(--text-color);
    font-size: 16px;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Кнопки */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: #0d2a4d;
}

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

.btn-secondary:hover {
    background: var(--accent-color);
}

.btn-danger {
    background: var(--error-color);
    color: white;
}

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

.btn-small {
    padding: 6px 12px;
    font-size: 14px;
}

/* Заголовок */
.header {
    background: var(--secondary-color);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 20px;
}

/* Навигация */
.nav-tabs {
    display: flex;
    background: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    flex: 1;
    padding: 15px;
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
    white-space: nowrap;
}

.tab-btn.active {
    border-bottom-color: var(--accent-color);
    color: var(--accent-color);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Контент */
.content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

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

/* Поиск и действия */
.search-bar,
.action-bar {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
}

.search-bar input {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background: var(--secondary-color);
    color: var(--text-color);
    font-size: 16px;
}

/* Списки */
.list-container {
    display: grid;
    gap: 15px;
}

.list-item {
    background: var(--secondary-color);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s;
}

.list-item:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.list-item h3 {
    margin-bottom: 10px;
    font-size: 18px;
}

.list-item p {
    margin: 5px 0;
    font-size: 14px;
    opacity: 0.8;
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    overflow-y: auto;
    padding: 20px;
}

.modal.active {
    display: block;
}

.modal-content {
    background: var(--secondary-color);
    margin: 20px auto;
    padding: 30px;
    border-radius: 10px;
    max-width: 600px;
    width: 100%;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-color);
}

.close:hover {
    color: var(--error-color);
}

.modal-content h2 {
    margin-bottom: 20px;
    font-size: 24px;
}

/* Карточка пользователя */
.user-card {
    display: grid;
    gap: 15px;
}

.user-info-row {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: var(--primary-color);
    border-radius: 5px;
}

.user-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

/* Сообщения об ошибках */
.error-message {
    color: var(--error-color);
    margin-top: 10px;
    padding: 10px;
    background: rgba(244, 67, 54, 0.1);
    border-radius: 5px;
    display: none;
}

.error-message.show {
    display: block;
}

.success-message {
    color: var(--success-color);
    margin-top: 10px;
    padding: 10px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 5px;
    display: none;
}

.success-message.show {
    display: block;
}

/* Адаптивность */
@media (max-width: 768px) {
    .login-container {
        padding: 10px;
    }
    
    .login-card {
        padding: 20px;
        max-height: calc(100vh - 20px);
    }
    
    .login-card h1 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .login-card .form-group {
        margin-bottom: 12px;
    }
    
    .login-card .login-options {
        margin-top: 15px;
    }
    
    .login-card .login-options .btn {
        margin-top: 8px;
    }
    
    .form-group input {
        padding: 10px;
        font-size: 16px; /* Предотвращает зум на iOS */
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 16px; /* Предотвращает зум на iOS */
    }
    
    .header {
        flex-direction: column;
        gap: 10px;
    }

    .nav-tabs {
        flex-wrap: nowrap;
    }

    .tab-btn {
        font-size: 12px;
        padding: 12px 8px;
    }

    .modal-content {
        margin: 10px;
        padding: 20px;
    }

    .user-actions {
        grid-template-columns: 1fr;
    }

    .search-bar {
        flex-direction: column;
    }
}

/* Настройки */
.settings-section {
    background: var(--secondary-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.settings-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s;
}

.settings-section-header:hover {
    background: rgba(255, 255, 255, 0.05);
}

.settings-section-header h3 {
    color: var(--text-color);
    margin: 0;
    font-size: 18px;
    font-weight: 500;
}

.collapse-icon {
    color: var(--text-color);
    font-size: 14px;
    transition: transform 0.3s ease;
    opacity: 0.7;
}

.settings-section.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.settings-section-content {
    padding: 0 20px 20px 20px;
    max-height: 5000px;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.2s ease;
    opacity: 1;
}

.settings-section.collapsed .settings-section-content {
    max-height: 0;
    padding: 0 20px;
    opacity: 0;
    overflow: hidden;
}

.settings-section .action-bar {
    margin-bottom: 20px;
    margin-top: 20px;
}

.settings-section .list-container {
    margin-top: 0;
}

/* Toggle Switch (Tumbler) */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #555;
    transition: 0.3s;
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent-color);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 1px var(--accent-color);
}

.toggle-switch:hover .toggle-slider {
    background-color: #666;
}

.toggle-switch input:checked:hover + .toggle-slider {
    background-color: #0d2a4f;
}

/* Загрузка */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-color);
    opacity: 0.6;
}

/* Пустое состояние */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-color);
    opacity: 0.6;
}

/* Пагинация */
.pagination {
    margin-top: 20px;
    padding: 15px;
    background: var(--secondary-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.pagination-info {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 14px;
}

.pagination-controls {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.pagination-btn {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background: var(--primary-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    min-width: 40px;
}

.pagination-btn:hover:not(.active) {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.pagination-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    font-weight: bold;
}

.pagination-ellipsis {
    padding: 8px 4px;
    color: var(--text-color);
    opacity: 0.6;
}

@media (max-width: 768px) {
    .pagination-controls {
        gap: 3px;
    }
    
    .pagination-btn {
        padding: 6px 10px;
        font-size: 12px;
        min-width: 35px;
    }
    
    .pagination-info {
        font-size: 12px;
    }
}