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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    min-height: 100vh;
}

.app {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
}

/* Шапка */
.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 16px;
}

.header h1 {
    font-size: 28px;
    margin-bottom: 8px;
    color: var(--tg-theme-button-color, #2c3e50);
}

.subtitle {
    color: var(--tg-theme-hint-color, #666);
    font-size: 14px;
}

/* Вкладки */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.tab {
    flex: 1;
    padding: 12px;
    background: var(--tg-theme-secondary-bg-color, #e0e0e0);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
    color: var(--tg-theme-text-color, #000000);
}

.tab.active {
    background: var(--tg-theme-button-color, #2c3e50);
    color: var(--tg-theme-button-text-color, #ffffff);
}

/* Страницы */
.page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Шаги */
.step {
    animation: fadeIn 0.3s ease;
}

.step.hidden {
    display: none;
}

.step h2 {
    margin-bottom: 20px;
    font-size: 20px;
}

/* Карточки услуг и мастеров */
.services-grid,
.masters-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-card,
.master-card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    padding: 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
}

.service-card:hover,
.master-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.service-card.selected,
.master-card.selected {
    border-color: var(--tg-theme-button-color, #2c3e50);
    background: var(--tg-theme-button-color, #2c3e50);
    color: white;
}

.service-price {
    font-size: 20px;
    font-weight: bold;
    margin-top: 8px;
}

.service-duration {
    font-size: 14px;
    opacity: 0.7;
    margin-top: 4px;
}

/* Кнопка назад */
.back-btn {
    width: 100%;
    padding: 12px;
    background: var(--tg-theme-secondary-bg-color, #e0e0e0);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    margin-bottom: 20px;
    color: var(--tg-theme-text-color, #000000);
    transition: opacity 0.2s;
}

.back-btn:hover {
    opacity: 0.8;
}

/* Выбор даты */
.date-input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--tg-theme-button-color, #2c3e50);
    border-radius: 8px;
    font-size: 16px;
    margin-bottom: 20px;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
}

/* Слоты времени */
.slots-container {
    margin-top: 20px;
}

.slots-container h3 {
    margin-bottom: 12px;
    font-size: 16px;
}

.slots-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.slot {
    text-align: center;
    padding: 12px;
    background: var(--tg-theme-secondary-bg-color, #e0e0e0);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--tg-theme-text-color, #000000);
}

.slot:hover {
    transform: scale(1.05);
}

.slot.selected {
    background: var(--tg-theme-button-color, #2c3e50);
    color: white;
}

/* Подтверждение */
.summary {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.summary-item.total {
    margin-top: 8px;
    padding-top: 12px;
    border-top: 2px solid var(--tg-theme-button-color, #2c3e50);
    font-weight: bold;
    font-size: 18px;
}

.label {
    font-weight: 500;
    opacity: 0.8;
}

.value {
    font-weight: 600;
}

.confirm-btn {
    width: 100%;
    padding: 14px;
    background: var(--tg-theme-button-color, #2c3e50);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.confirm-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.confirm-btn:hover:not(:disabled) {
    opacity: 0.9;
}

/* Мои записи */
.bookings-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.booking-card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    padding: 16px;
    border-radius: 12px;
    border-left: 4px solid var(--tg-theme-button-color, #2c3e50);
}

.booking-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.booking-header h3 {
    font-size: 18px;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.active {
    background: #4caf50;
    color: white;
}

.booking-details p {
    margin: 6px 0;
    font-size: 14px;
}

.cancel-btn {
    width: 100%;
    padding: 10px;
    background: #ff4444;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 12px;
    transition: opacity 0.2s;
}

.cancel-btn:hover {
    opacity: 0.9;
}

/* Сообщения */
.message {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    padding: 14px;
    border-radius: 12px;
    text-align: center;
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

.message.success {
    background: #4caf50;
    color: white;
}

.message.error {
    background: #ff4444;
    color: white;
}

.message.hidden {
    display: none;
}

@keyframes slideUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Загрузка */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--tg-theme-hint-color, #999);
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--tg-theme-hint-color, #999);
}

.empty-state p {
    margin: 10px 0;
}

.hint {
    font-size: 14px;
    opacity: 0.7;
}

/* Адаптивность */
@media (max-width: 480px) {
    .app {
        padding: 12px;
    }
    
    .slots-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 360px) {
    .slots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Дополнительные стили */
.master-specialty {
    font-size: 14px;
    opacity: 0.8;
    margin-top: 4px;
}

.master-services {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 8px;
    color: var(--tg-theme-hint-color, #666);
}

.service-description {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 4px;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--tg-theme-hint-color, #999);
}

.empty-state p {
    margin: 10px 0;
}

.hint {
    font-size: 14px;
    opacity: 0.7;
}