/* no1 - CSS Reset & Base Styles - Reset CSS cơ bản và thiết lập font - Phụ thuộc: không - Liên quan: no2 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* no2 - CSS Variables - Biến CSS cho màu sắc và spacing - Phụ thuộc: no1 - Liên quan: tất cả */
    --primary-color: #E91E63;
    --primary-light: #F8BBD9;
    --primary-dark: #AD1457;
    --secondary-color: #009688;
    --secondary-light: #B2DFDB;
    --accent-color: #FFD700;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --error-color: #F44336;
    --text-primary: #212121;
    --text-secondary: #757575;
    --background: #FAFAFA;
    --surface: #FFFFFF;
    --border-color: #E0E0E0;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
    --border-radius: 12px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --font-family-primary: 'Inter', system-ui, -apple-system, sans-serif;
    --font-family-display: 'Playfair Display', serif;
}

/* no3 - Body & App Container - Thiết lập body và container chính - Phụ thuộc: no1, no2 - Liên quan: no4 */
body {
    font-family: var(--font-family-primary);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 100vw;
}

/* no4 - Header Styles - Thiết kế header với search - Phụ thuộc: no2, no3 - Liên quan: no5 */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
}

.spa-name {
    font-family: var(--font-family-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
}

.search-container {
    position: relative;
    flex: 1;
    max-width: 300px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-xl) var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: 25px;
    background: rgba(255,255,255,0.15);
    color: white;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.search-input::placeholder {
    color: rgba(255,255,255,0.7);
}

.search-input:focus {
    outline: none;
    background: rgba(255,255,255,0.25);
    box-shadow: 0 0 0 2px rgba(255,255,255,0.3);
}

.search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.7);
    pointer-events: none;
}

/* no5 - Main Content Styles - Thiết kế khu vực nội dung chính - Phụ thuộc: no3 - Liên quan: no6 */
.main-content {
    flex: 1;
    padding-bottom: 80px; /* Space for bottom nav */
}

.section {
    padding: var(--spacing-lg) var(--spacing-md);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-family-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.view-all-btn {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-all-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* no6 - Hero Section Styles - Thiết kế hero section - Phụ thuộc: no5 - Liên quan: no7 */
.hero-section {
    padding: 0;
}

.hero-banner {
    position: relative;
    height: 250px;
    overflow: hidden;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

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

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: white;
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
}

.hero-title {
    font-family: var(--font-family-display);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.hero-tagline {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.4;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.info-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.info-card i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.info-text {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* no7 - Carousel Styles - Thiết kế carousel chung - Phụ thuộc: no5 - Liên quan: no8, no9 */
.carousel-container {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.carousel-wrapper {
    overflow: hidden;
    border-radius: var(--border-radius);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
    gap: var(--spacing-md);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.9);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    z-index: 10;
    transition: all 0.3s ease;
}

.carousel-btn:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: var(--spacing-sm);
}

.next-btn {
    right: var(--spacing-sm);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* no8 - Promo Card Styles - Thiết kế thẻ khuyến mãi - Phụ thuộc: no7 - Liên quan: no9 */
.promo-card {
    min-width: 280px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius);
    color: white;
    padding: var(--spacing-lg);
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.promo-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(45deg);
    transition: all 0.3s ease;
}

.promo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(233, 30, 99, 0.3);
}

.promo-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--accent-color);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.promo-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family-display);
}

.promo-description {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.promo-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.promo-discount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.promo-validity {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* no9 - Service Card Styles - Thiết kế thẻ dịch vụ - Phụ thuộc: no7 - Liên quan: no10 */
.service-card {
    min-width: 200px;
    background: var(--surface);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.service-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.service-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--error-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.service-info {
    padding: var(--spacing-md);
}

.service-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.service-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.service-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
}

.add-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.add-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* no10 - Categories Navigation Styles - Thiết kế tab danh mục sticky - Phụ thuộc: no7 - Liên quan: no11 */
.categories-nav-section {
    position: sticky;
    top: 92px; /* Below header */
    z-index: 500;
    background: var(--background);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
}

.categories-nav {
    padding: 0 var(--spacing-md);
}

.categories-wrapper {
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.categories-wrapper::-webkit-scrollbar {
    display: none;
}

.categories-track {
    display: flex;
    gap: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
}

.category-btn {
    background: var(--surface);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

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

.category-btn:hover:not(.active) {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* no11 - Services Grid Styles - Thiết kế lưới dịch vụ - Phụ thuộc: no9 - Liên quan: no12 */
.services-grid-section {
    padding: var(--spacing-md);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.grid-service-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

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

.grid-service-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.grid-service-info {
    padding: var(--spacing-md);
}

.grid-service-category {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
}

.grid-service-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.grid-service-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.grid-service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.grid-service-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.grid-service-duration {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* no12 - Bottom Navigation Styles - Thiết kế thanh điều hướng dưới - Phụ thuộc: no3 - Liên quan: no13 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-around;
    z-index: 1000;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.1);
}

.nav-item {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    padding: var(--spacing-sm);
    border-radius: var(--spacing-sm);
}

.nav-item i {
    font-size: 1.2rem;
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-item:hover:not(.active) {
    color: var(--primary-color);
    background: var(--primary-light);
}

/* no13 - Modal Styles - Thiết kế modal popup - Phụ thuộc: no3 - Liên quan: no14 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-md);
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    animation: slideUp 0.3s ease;
}

.modal-content.small {
    max-width: 350px;
}

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

.modal-header h3 {
    font-family: var(--font-family-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.modal-info {
    text-align: left;
}

.service-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.price-duration {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--border-radius);
}

.price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.duration {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.btn-primary, .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
}

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

.btn-secondary {
    background: none;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

/* no14 - Toast Notification Styles - Thiết kế thông báo toast - Phụ thuộc: no3 - Liên quan: không */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: var(--surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    z-index: 3000;
    opacity: 0;
    transition: all 0.3s ease;
    border-left: 4px solid var(--success-color);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
}

.toast-content i {
    font-size: 1.1rem;
}

.toast.success .toast-content i {
    color: var(--success-color);
}

.toast.error .toast-content i {
    color: var(--error-color);
}

.toast.warning .toast-content i {
    color: var(--warning-color);
}

#toastMessage {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* no15 - Responsive Design - Thiết kế responsive cho các kích thước màn hình - Phụ thuộc: tất cả - Liên quan: không */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .search-container {
        max-width: 100%;
        order: 2;
    }
    
    .logo-section {
        order: 1;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .carousel-track {
        gap: var(--spacing-sm);
    }
    
    .service-card, .promo-card {
        min-width: 250px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .info-cards {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1025px) {
    .app-container {
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .bottom-nav {
        position: relative;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        margin: var(--spacing-md);
    }
    
    .main-content {
        padding-bottom: 0;
    }
}

/* no16 - Animations - Định nghĩa các animation - Phụ thuộc: không - Liên quan: no13 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* no17 - Utility Classes - Các class tiện ích - Phụ thuộc: no2 - Liên quan: không */
.hidden {
    display: none !important;
}

.loading {
    opacity: 0.6;
    pointer-events: none;
}

.text-center {
    text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

/* no18 - Page System Styles - Thiết kế hệ thống trang - Phụ thuộc: no2 - Liên quan: no19 */
.page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--background);
    z-index: 1500;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.page.hidden {
    transform: translateX(100%);
}

.page-header {
    background: var(--surface);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.back-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: var(--border-color);
}

.page-title {
    font-family: var(--font-family-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.cart-icon {
    position: relative;
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.cart-icon:hover {
    background: var(--border-color);
}

.cart-counter {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--error-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* no19 - Cart Summary Styles - Thiết kế tóm tắt giỏ hàng - Phụ thuộc: no18 - Liên quan: no20 */
.cart-summary {
    background: var(--surface);
    margin: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.cart-header {
    background: var(--primary-light);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.clear-cart-btn {
    background: none;
    border: none;
    color: var(--error-color);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.clear-cart-btn:hover {
    background: rgba(244, 67, 54, 0.1);
}

.cart-items {
    max-height: 200px;
    overflow-y: auto;
}

.cart-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.cart-item-details {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.cart-item-price {
    font-weight: 600;
    color: var(--primary-color);
    margin-left: var(--spacing-md);
}

.remove-item-btn {
    background: none;
    border: none;
    color: var(--error-color);
    cursor: pointer;
    padding: var(--spacing-xs);
    margin-left: var(--spacing-sm);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.remove-item-btn:hover {
    background: rgba(244, 67, 54, 0.1);
}

.cart-total {
    padding: var(--spacing-md);
    background: var(--background);
}

.total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.total-row.total-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

.empty-cart {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
}

.empty-cart i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* no20 - Booking Form Styles - Thiết kế form đặt lịch - Phụ thuộc: no18 - Liên quan: no21 */
.booking-form-container {
    padding: var(--spacing-md);
}

.booking-form {
    background: var(--surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.form-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section-title {
    font-family: var(--font-family-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--spacing-sm);
    font-size: 0.9rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--surface);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(233, 30, 99, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    padding: var(--spacing-lg);
    background: var(--background);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* no21 - Success Page Styles - Thiết kế trang thành công - Phụ thuộc: no18 - Liên quan: không */
.success-container {
    padding: var(--spacing-xl);
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    min-height: calc(100vh - 100px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.success-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: var(--spacing-lg);
}

.success-title {
    font-family: var(--font-family-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.success-message {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

.booking-summary {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow);
    text-align: left;
}

.booking-summary h4 {
    font-family: var(--font-family-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

.summary-row:last-child {
    margin-bottom: 0;
}

.summary-label {
    color: var(--text-secondary);
}

.summary-value {
    font-weight: 600;
    color: var(--text-primary);
}

.summary-services {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.summary-service-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: 0.85rem;
}

.success-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* no22 - Responsive Booking Styles - Thiết kế responsive cho booking - Phụ thuộc: no20, no21 - Liên quan: không */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .success-actions {
        flex-direction: column;
    }
    
    .cart-summary {
        margin: var(--spacing-sm);
    }
    
    .booking-form-container {
        padding: var(--spacing-sm);
    }
}

/* no23 - Promotions Page Styles - Thiết kế trang khuyến mãi - Phụ thuộc: no18 - Liên quan: no24 */
.promotion-filter {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md);
    position: sticky;
    top: 60px;
    z-index: 100;
}

.filter-options {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-options::-webkit-scrollbar {
    display: none;
}

.filter-option {
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.filter-option.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.filter-option:hover:not(.active) {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.promotions-content {
    padding: var(--spacing-md);
}

.promotions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.promotion-card-full {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius);
    color: white;
    padding: var(--spacing-lg);
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.promotion-card-full::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(45deg);
    transition: all 0.3s ease;
}

.promotion-card-full:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(233, 30, 99, 0.3);
}

.promotion-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.promotion-badge-large {
    background: var(--accent-color);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
}

.promotion-status {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.promotion-status.active {
    background: var(--success-color);
    color: white;
}

.promotion-status.upcoming {
    background: var(--warning-color);
    color: white;
}

.promotion-status.expired {
    background: var(--error-color);
    color: white;
}

.promotion-title-large {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family-display);
}

.promotion-description-large {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.promotion-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.promotion-detail-item {
    text-align: center;
}

.promotion-detail-label {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.promotion-detail-value {
    font-size: 1.1rem;
    font-weight: 600;
}

.promotion-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
}

/* no24 - History Page Styles - Thiết kế trang lịch sử - Phụ thuộc: no18 - Liên quan: no25 */
.history-content {
    padding: var(--spacing-md);
}

.history-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.history-item {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

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

.history-item.cancelled {
    border-left-color: var(--error-color);
    opacity: 0.7;
}

.history-item.completed {
    border-left-color: var(--success-color);
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.history-id {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.history-status {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.history-status.confirmed {
    background: var(--primary-light);
    color: var(--primary-color);
}

.history-status.completed {
    background: var(--secondary-light);
    color: var(--secondary-color);
}

.history-status.cancelled {
    background: rgba(244, 67, 54, 0.1);
    color: var(--error-color);
}

.history-datetime {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.history-services {
    margin-bottom: var(--spacing-sm);
}

.history-service-item {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.history-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.history-total {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
}

.history-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-small.secondary {
    background: var(--border-color);
    color: var(--text-secondary);
}

.btn-small:hover {
    transform: translateY(-1px);
}

.empty-history {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-history i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* no25 - Service Detail Page Styles - Thiết kế trang chi tiết dịch vụ - Phụ thuộc: no18 - Liên quan: no26 */
.service-detail-content {
    padding: 0;
}

.service-detail-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.service-detail-info {
    padding: var(--spacing-lg);
}

.service-detail-category {
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
}

.service-detail-name {
    font-family: var(--font-family-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.service-detail-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.service-detail-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--border-radius);
}

.service-spec {
    text-align: center;
}

.service-spec-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.service-spec-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.service-detail-actions {
    position: sticky;
    bottom: 0;
    background: var(--surface);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
}

.btn-full {
    flex: 1;
    padding: var(--spacing-md);
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

/* no26 - Header Actions Styles - Thiết kế header actions - Phụ thuộc: no18 - Liên quan: không */
.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-btn, .share-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.filter-btn:hover, .share-btn:hover {
    background: var(--border-color);
}

/* no27 - Responsive Pages Styles - Thiết kế responsive cho pages - Phụ thuộc: no23, no24, no25 - Liên quan: không */
@media (min-width: 768px) {
    .promotions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .history-stats {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .promotion-details {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .service-detail-specs {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .promotions-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}