:root {
    --primary-color: #2196F3;
    --secondary-color: #1976D2;
    --background-color: #f5f5f5;
    --text-color: #333;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
}

.hidden {
    display: none !important;
}

.clickable {
    cursor: pointer !important;
}

/* Стили для формы логина */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--background-color);
}

.login-box {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-align: center;
}

.login-box input {
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.login-box button {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.login-box button:hover {
    background-color: var(--secondary-color);
}

/* Стили для админ интерфейса */
.admin-interface {
    display: flex;
    min-height: 100vh;
}

/* Боковое меню */
.sidebar {
    width: var(--sidebar-width);
    background-color: white;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.sidebar-header h3 {
    color: var(--primary-color);
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Разделитель между вкладками и кнопкой выхода */
.menu-divider {
    height: 1px;
    background-color: #eee;
    margin: 1rem 0;
    width: 100%;
}

/* Стили для основного меню */
.sidebar nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar nav ul li {
    margin-bottom: 0.25rem;
}

.sidebar nav ul li a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.sidebar nav ul li a:hover,
.sidebar nav ul li a.active {
    background-color: var(--primary-color);
    color: white;
}

/* Основной контент */
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    margin-left: var(--sidebar-width);
}

/* Главный экран */
#dashboard h1 {
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.dashboard-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.dashboard-card p {
    color: #666;
    line-height: 1.5;
}

/* Заголовок контента */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    position: relative;
}

.back-button {
    position: absolute;
    left: 0;
    top: -3rem;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.back-button:hover {
    background: #e0e0e0;
}

.add-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-size: 1rem;
    transition: background-color 0.3s;
}

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

/* Сетка мастер-классов */
.masterclasses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.masterclass-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    cursor: pointer;
}

.masterclass-card:hover {
    transform: translateY(-5px);
}

.masterclass-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.masterclass-info {
    padding: 1rem;
}

.masterclass-info h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Стили для формы */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.form-group input[type="number"]::-webkit-outer-spin-button,
.form-group input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.form-group.error input,
.form-group.error textarea {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-group .error-message {
    color: #dc3545;
    font-size: 0.875em;
    margin-top: 0.25rem;
}

.settings-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.group-settings,
.individual-settings {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.group-settings h3,
.individual-settings h3 {
    margin-bottom: 1rem;
    color: #495057;
}

.switch-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.checkboxes {
    margin: 1.5rem 0;
    display: flex;
    gap: 2rem;
}

.checkboxes label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkboxes input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
}

.schedule-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.schedule-section h3 {
    margin-bottom: 1rem;
    color: #495057;
}

.weekdays-container {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.weekday-btn {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.weekday-btn:hover {
    background: #e9ecef;
}

.weekday-btn.selected {
    position: relative;
}

.weekday-btn.selected::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    z-index: 1;
}

.weekday-btn.has-schedule {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.weekday-btn.has-schedule.selected::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    z-index: 1;
}

.time-input-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.time-input-container input[type="time"] {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.schedule-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.time-slot {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.delete-time {
    background: none;
    border: none;
    color: #dc3545;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0;
    line-height: 1;
}

.delete-time:hover {
    color: #c82333;
}

/* Стили для кнопок действий */
.form-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.form-actions button {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
}

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

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

.cancel-button {
    background: #6c757d;
    color: white;
}

.cancel-button:hover {
    background: #5a6268;
}

.delete-button {
    background: #dc3545;
    color: white;
}

.delete-button:hover {
    background: #c82333;
}

/* Стили для предпросмотра изображений */
.current-images {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.image-preview {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 1;
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.delete-image {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    line-height: 1;
    transition: background-color 0.3s;
}

.delete-image:hover {
    background: rgba(200, 35, 51, 0.9);
}

/* Стили для переключателей */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

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

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

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Стили для модального окна */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    background-color: #fff;
    margin: 5% auto;
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.modal-header {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 24px;
    cursor: pointer;
    color: #666;
}

.modal-close:hover {
    color: #333;
}

.modal-footer {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Улучшенные стили для полей ввода */
.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.1);
    outline: none;
}

input[type="email"].form-control {
    font-family: inherit;
    color: var(--text-color);
}

/* Стили для кнопок в модальном окне */
.btn {
    padding: 8px 16px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

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

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

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

/* Стили для раздела бронирований */
#bookings {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.bookings-grid {
    display: grid;
    gap: 15px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    grid-template-columns: repeat(auto-fill, minmax(600px, 1fr));
    width: 100%;
}

.booking-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 3px 6px rgba(0,0,0,0.1);
    border: 1px solid #e0e0e0;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

.booking-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-color);
    border-radius: 15px 0 0 15px;
}

.booking-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.booking-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px dashed #e0e0e0;
}

.booking-title {
    font-size: 1.1em;
    font-weight: 600;
    color: #2c3e50;
}

.booking-status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
    text-transform: uppercase;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.status-confirmed {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status-cancelled {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.booking-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.9em;
}

.booking-tickets {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed #e0e0e0;
    font-size: 0.9em;
}

.booking-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.booking-actions button {
    padding: 6px 12px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.2s;
}

.edit-booking {
    background: #28a745;
    color: white;
}

.delete-booking {
    background: #dc3545;
    color: white;
}

.edit-booking:hover {
    background: #218838;
}

.delete-booking:hover {
    background: #c82333;
}

/* Стили для фильтров */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    min-width: 200px;
    font-size: 0.9em;
    color: #333;
    background: #f8f9fa;
    transition: border-color 0.2s;
}

.date-filter {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.date-filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.date-filter-group label {
    font-size: 0.8em;
    color: #666;
}

.filter-date {
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 0.9em;
    color: #333;
    background: #f8f9fa;
    transition: all 0.2s;
    min-width: 150px;
}

.filter-date::-webkit-calendar-picker-indicator {
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.filter-date::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}

.filter-date:hover {
    border-color: var(--primary-color);
}

.filter-date:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.1);
}

.clear-dates-btn {
    padding: 8px 16px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    background: #fff;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
    align-self: flex-end;
    white-space: nowrap;
}

.clear-dates-btn:hover {
    background: #f8f9fa;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Стили для пагинации */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.pagination-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    background: var(--primary-color);
    color: white;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 0.9em;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--secondary-color);
}

.pagination-btn:disabled {
    background: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
}

#pageInfo {
    font-size: 0.9em;
    color: #6c757d;
    padding: 0 10px;
}

/* Стили для кнопки просмотра бронирований */
#viewBookingsButton {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    font-size: 14px;
    margin-left: auto;
}

#viewBookingsButton:hover:not(:disabled) {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
}

#viewBookingsButton:disabled {
    background-color: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
}

/* Стили для раздела настроек */
.settings-section {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin: 20px;
}

.setting-group {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.setting-group:last-child {
    border-bottom: none;
}

.setting-group h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.info-icon {
    font-size: 0.9em;
    color: #6c757d;
    cursor: help;
    transition: color 0.3s;
}

.info-icon:hover {
    color: var(--primary-color);
}

.email-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.form-row input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9em;
    min-width: 200px;
}

.form-row button {
    white-space: nowrap;
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
}

.test-email-form {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.test-email-form input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9em;
    min-width: 200px;
}

.test-email-form button {
    white-space: nowrap;
}

/* Стили для кнопки выхода */
.logout-section {
    margin-top: auto;
    padding: 0.5rem 0;
}

.logout-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #dc3545;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.logout-link:hover {
    background-color: rgba(220, 53, 69, 0.1);
}

.logout-link i {
    font-size: 1.1em;
}