/* ===================================================
   THEME DETAIL PAGE - RESPONSIVE CSS (UPDATED)
   Works with existing styles.css - Only overrides detail page specific styles
   Optimized for: 320px, 375px, 425px, 640px, 768px, 1024px, 1440px
   =================================================== */

/* ===== OVERRIDE BODY STYLES FOR THEME DETAIL PAGE ===== */
body {
    background: #f5f5f5;
}

/* ===== SITE HEADER (THEME DETAIL SPECIFIC) ===== */
.site-header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo h1 {
    margin: 0;
    font-size: 1.8rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo img {
    display: block;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.main-nav a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 5px;
}

.main-nav a:hover {
    color: #667eea;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #333;
}

/* ===== DETAIL HERO ===== */
.detail-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 0 60px;
    margin-top: 70px;
}

.breadcrumb {
    max-width: 1200px;
    margin: 0 auto 20px;
    padding: 0 20px;
    color: white;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.breadcrumb a:hover {
    opacity: 1;
}

/* ===== DETAIL CONTAINER ===== */
.detail-container {
    max-width: 1200px;
    margin: -40px auto 50px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 30px;
    align-items: start;
    width: 100%;
    box-sizing: border-box;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    width: 100%;
    box-sizing: border-box;
    min-width: 0; 
}

.theme-title {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #333;
    word-wrap: break-word;
    font-weight: 700;
}

.theme-meta-bar {
    display: flex;
    font-size: 0.9rem;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 2px solid #eee;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.theme-meta-bar i {
    font-size: 0.9rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666;
}

.meta-item i {
    color: #667eea;
}

.rating-stars {
    color: #ffc107;
}

/* ===== PREVIEW SECTION ===== */
.preview-section {
    margin-bottom: 40px;
}

.main-preview {
    width: 100%;
    max-width: 100%;
    height: auto;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
    cursor: pointer;
    transition: transform 0.3s;
}

.main-preview:hover {
    transform: scale(1.02);
}

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

.main-preview .placeholder {
    color: white;
    opacity: 0.3;
    font-size: 6rem;
}

.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

.thumbnail-item {
    height: 120px;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.thumbnail-item:hover {
    transform: scale(1.05);
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== SECTION TITLE ===== */
.section-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #333;
    border-left: 4px solid #667eea;
    padding-left: 15px;
    font-weight: 700;
}

/* ===== DESCRIPTION ===== */
.description-text {
    color: #555;
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: 40px;
}

/* ===== FEATURES GRID ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s;
}

.feature-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.feature-item i {
    color: #667eea;
    font-size: 1.3rem;
    margin-top: 3px;
    flex-shrink: 0;
}

.feature-text {
    flex: 1;
}

.feature-text h4 {
    margin: 0;
    color: #333;
    font-size: 1rem;
    font-weight: 600;
}

/* ===== SIDEBAR ===== */
.sidebar {
    position: sticky;
    top: 90px;
    height: fit-content;
    align-self: start;
    width: 380px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
}

.purchase-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    width: 100%;
    box-sizing: border-box;
}

.purchase-card h3 {
    font-size: 1.3rem;
    color: #333;
    font-weight: 700;
}

.price-section {
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 2px solid #eee;
    margin-bottom: 20px;
}

.price-tag {
    font-size: 3rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 5px;
}

.price-tag.free {
    color: #28a745;
}

.price-label {
    color: #666;
    font-size: 0.9rem;
}

/* ===== ACTION BUTTONS ===== */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-primary {
    background: #667eea;
    color: white;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: white;
    color: #667eea;
    padding: 15px;
    border: 2px solid #667eea;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-secondary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

/* ===== INFO LIST ===== */
.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-list li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #555;
    font-size: 0.95rem;
}

.info-list li:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: #333;
}

/* ===== IMAGE POPUP ===== */
#imgPopup {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    justify-content: center;
    align-items: center;
    z-index: 9999;
    cursor: pointer;
}

#popupImg {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    background: #fff;
    padding: 10px;
    border-radius: 10px;
}

/* ===================================================
   RESPONSIVE BREAKPOINTS
   =================================================== */

/* ===== LARGE DESKTOP (1440px+) ===== */
@media (min-width: 1441px) {
    .detail-container {
        max-width: 1400px;
    }
}

/* ===== DESKTOP (1024px - 1440px) ===== */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 30px;
    }
    
    .detail-container {
        padding: 0 30px;
        gap: 25px;
    }
    
    .main-content {
        padding: 35px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 969px) {
    .detail-container {
        align-items: start;
    }
    
    .sidebar {
        position: sticky;
        top: 90px;
        max-height: calc(100vh - 110px);
        overflow-y: auto;
    }
}

/* ===== TABLET LANDSCAPE (768px - 1023px) ===== */
@media (max-width: 968px) {
    /* Header */
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
        padding: 20px;
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid #eee;
    }
    
    .main-nav li:last-child {
        border-bottom: none;
    }
    
    .main-nav a {
        padding: 15px 0;
        display: block;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    /* Detail Hero */
    .detail-hero {
        margin-top: 70px;
    }
    
    /* Detail Container */
    .detail-container {
        grid-template-columns: 1fr;
        margin-top: -20px;
    }
    
    .main-content {
        padding: 30px 25px;
    }
    
    .theme-title {
        font-size: 1.8rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Sidebar */
    .sidebar {
        position: static !important;
        top: auto !important;
        order: -1;
    }
    
    .purchase-card {
        padding: 25px;
    }
}

/* ===== TABLET PORTRAIT (768px) ===== */
@media (max-width: 768px) {
    .breadcrumb {
        font-size: 0.85rem;
    }
    
    .theme-meta-bar {
        font-size: 0.85rem;
        gap: 15px;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .price-tag {
        font-size: 2.5rem;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 12px;
    }
    
    .thumbnail-item {
        height: 100px;
    }
}

/* ===== MOBILE LANDSCAPE (640px) ===== */
@media (max-width: 640px) {
    .header-container {
        padding: 0 15px;
        height: 60px;
    }
    
    .logo img {
        width: 40px;
    }
    
    .detail-hero {
        padding: 30px 0 40px;
        margin-top: 60px;
    }
    
    .breadcrumb {
        font-size: 0.8rem;
        padding: 0 15px;
    }
    
    .detail-container {
        padding: 0 15px;
        margin: -20px auto 30px;
    }
    
    .main-content {
        padding: 25px 20px;
        border-radius: 10px;
    }
    
    .theme-title {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    
    .theme-meta-bar {
        font-size: 0.8rem;
        gap: 12px;
        padding: 15px 0;
    }
    
    .main-preview .placeholder {
        font-size: 4rem;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 10px;
    }
    
    .thumbnail-item {
        height: 80px;
        border-radius: 6px;
    }
    
    .section-title {
        font-size: 1.2rem;
        padding-left: 12px;
    }
    
    .description-text {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }
    
    .feature-item {
        padding: 12px;
    }
    
    .feature-item i {
        font-size: 1.1rem;
    }
    
    .feature-text h4 {
        font-size: 0.95rem;
    }
    
    .purchase-card {
        padding: 20px;
        border-radius: 10px;
    }
    
    .price-tag {
        font-size: 2.2rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 12px;
        font-size: 1rem;
    }
    
    .info-list li {
        font-size: 0.9rem;
        padding: 10px 0;
    }
}

/* ===== MOBILE (425px) ===== */
@media (max-width: 425px) {
    .header-container {
        height: 60px;
    }
    
    .logo img {
        width: 35px;
    }
    
    .theme-title {
        font-size: 1.3rem;
    }
    
    .theme-meta-bar {
        font-size: 0.75rem;
        gap: 10px;
    }
    
    .meta-item {
        gap: 6px;
    }
    
    .main-preview .placeholder {
        font-size: 3rem;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .description-text {
        font-size: 0.9rem;
    }
    
    .price-tag {
        font-size: 2rem;
    }
    
    .btn-primary,
    .btn-secondary {
        font-size: 0.95rem;
    }
}

/* ===== MOBILE (375px) ===== */
@media (max-width: 375px) {
    .header-container {
        padding: 0 12px;
    }
    
    .logo img {
        width: 35px;
    }
    
    .detail-container {
        padding: 0 12px;
    }
    
    .main-content {
        padding: 20px 15px;
    }
    
    .theme-title {
        font-size: 1.2rem;
    }
    
    .theme-meta-bar {
        font-size: 0.7rem;
        gap: 8px;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .thumbnail-item {
        height: 70px;
    }
    
    .section-title {
        font-size: 1rem;
        padding-left: 10px;
    }
    
    .description-text {
        font-size: 0.85rem;
    }
    
    .feature-item {
        padding: 10px;
    }
    
    .feature-item i {
        font-size: 1rem;
    }
    
    .feature-text h4 {
        font-size: 0.9rem;
    }
    
    .purchase-card {
        padding: 18px;
    }
    
    .price-tag {
        font-size: 1.8rem;
    }
    
    .price-label {
        font-size: 0.85rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .info-list li {
        font-size: 0.85rem;
    }
}

/* ===== SMALL MOBILE (320px) ===== */
@media (max-width: 320px) {
    .header-container {
        padding: 0 10px;
        height: 55px;
    }
    
    .logo img {
        width: 30px;
    }
    
    .mobile-menu-toggle {
        font-size: 1.3rem;
    }
    
    .detail-hero {
        padding: 25px 0 35px;
        margin-top: 55px;
    }
    
    .breadcrumb {
        font-size: 0.7rem;
        padding: 0 10px;
    }
    
    .detail-container {
        padding: 0 10px;
        margin: -15px auto 25px;
    }
    
    .main-content {
        padding: 18px 12px;
    }
    
    .theme-title {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }
    
    .theme-meta-bar {
        font-size: 0.65rem;
        gap: 8px;
        padding: 12px 0;
        margin-bottom: 20px;
    }
    
    .meta-item {
        gap: 5px;
    }

    .main-preview .placeholder {
        font-size: 2.5rem;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .thumbnail-item {
        height: 60px;
        border-radius: 5px;
    }
    
    .section-title {
        font-size: 0.95rem;
        margin-bottom: 15px;
        padding-left: 8px;
        border-left-width: 3px;
    }
    
    .description-text {
        font-size: 0.8rem;
        margin-bottom: 25px;
        line-height: 1.6;
    }
    
    .feature-item {
        padding: 10px;
        gap: 10px;
    }
    
    .feature-item i {
        font-size: 0.95rem;
    }
    
    .feature-text h4 {
        font-size: 0.85rem;
    }
    
    .purchase-card {
        padding: 15px;
        border-radius: 8px;
        margin-bottom: 15px;
    }
    
    .purchase-card h3 {
        font-size: 1rem;
    }
    
    .price-section {
        padding-bottom: 15px;
        margin-bottom: 15px;
    }
    
    .price-tag {
        font-size: 1.6rem;
        margin-bottom: 3px;
    }
    
    .price-label {
        font-size: 0.8rem;
    }
    
    .action-buttons {
        gap: 12px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 10px;
        font-size: 0.85rem;
        border-radius: 6px;
    }
    
    .info-list li {
        font-size: 0.8rem;
        padding: 8px 0;
    }
    
    .info-label {
        font-size: 0.8rem;
    }
    
    #popupImg {
        max-width: 95%;
        max-height: 95%;
        padding: 5px;
        border-radius: 6px;
    }
}

/* ===== UTILITY FIXES ===== */

/* Prevent horizontal scroll */
html, body {
    overflow-x: hidden !important;
    max-width: 100%;
}

/* Image responsiveness */
img {
    max-width: 100%;
    height: auto;
}

/* Button touch targets */
@media (max-width: 640px) {
    .btn-primary,
    .btn-secondary,
    .mobile-menu-toggle {
        min-height: 44px;
        min-width: 44px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Text overflow handling */
.theme-title,
.section-title,
.feature-text h4,
.info-label {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Safe area for notched devices */
@supports (padding: env(safe-area-inset-left)) {
    .header-container,
    .detail-container,
    .breadcrumb {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }
}

/* ===== THUMBNAIL GALLERY SLIDER (FIXED WIDTH - 5 IMAGES VISIBLE) ===== */

/* Container with fixed width to show only 5 images */
.thumbnail-gallery {
    display: flex !important;
    gap: 15px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    padding-bottom: 10px;
    
    /* Calculate width: 5 images × 150px + 4 gaps × 15px = 810px */
    max-width: 810px;
    
    /* Hide scrollbar but keep functionality */
    scrollbar-width: thin;
    scrollbar-color: #667eea #f0f0f0;
}

/* Webkit browsers (Chrome, Safari, Edge) scrollbar styling */
.thumbnail-gallery::-webkit-scrollbar {
    height: 8px;
}

.thumbnail-gallery::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 10px;
}

.thumbnail-gallery::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

.thumbnail-gallery::-webkit-scrollbar-thumb:hover {
    background: #5568d3;
}

/* Thumbnail items - Fixed size */
.thumbnail-item {
    min-width: 150px;
    max-width: 150px;
    height: 120px;
    flex-shrink: 0; /* Prevent items from shrinking */
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.thumbnail-item:hover {
    transform: scale(1.05);
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */

/* Large Desktop (1024px+) - 5 images visible */
@media (min-width: 1024px) {
    .thumbnail-gallery {
        max-width: auto; /* 5 × 150px + 4 × 15px */
    }
}

/* Tablet (768px - 1023px) - 4 images visible */
@media (max-width: 1023px) and (min-width: 768px) {
    .thumbnail-item {
        min-width: 130px;
        max-width: 130px;
        height: 105px;
    }
    
    .thumbnail-gallery {
        max-width: auto; /* 4 × 130px + 3 × 15px */
        gap: 15px;
    }
}

/* Tablet Portrait (640px - 767px) - 3 images visible */
@media (max-width: 767px) and (min-width: 640px) {
    .thumbnail-item {
        min-width: 120px;
        max-width: 120px;
        height: 100px;
    }
    
    .thumbnail-gallery {
        max-width: auto; /* 3 × 120px + 2 × 12px */
        gap: 12px;
    }
}

/* Mobile (425px - 639px) - 3 images visible */
@media (max-width: 639px) and (min-width: 425px) {
    .thumbnail-item {
        min-width: 100px;
        max-width: 100px;
        height: 80px;
    }
    
    .thumbnail-gallery {
        max-width: auto; /* 3 × 100px + 2 × 10px */
        gap: 10px;
    }
}

/* Small Mobile (375px - 424px) - 3 images visible */
@media (max-width: 424px) and (min-width: 375px) {
    .thumbnail-item {
        min-width: 90px;
        max-width: 90px;
        height: 70px;
    }
    
    .thumbnail-gallery {
        max-width: auto; /* 3 × 90px + 2 × 9px */
        gap: 9px;
    }
}

/* Extra Small Mobile (320px - 374px) - 3 images visible */
@media (max-width: 374px) and (min-width: 320px) {
    .thumbnail-item {
        min-width: 80px;
        max-width: 80px;
        height: 65px;
    }
    
    .thumbnail-gallery {
        max-width: auto; /* 3 × 80px + 2 × 8px */
        gap: 8px;
    }
}

/* Very Small Mobile (< 320px) - 2 images visible */
@media (max-width: 319px) {
    .thumbnail-item {
        min-width: 70px;
        max-width: 70px;
        height: 60px;
    }
    
    .thumbnail-gallery {
        max-width: auto; /* 2 × 70px + 1 × 6px */
        gap: 6px;
    }
}

@media (max-width: 1440px) and (min-width: 1200px) {
    .detail-container {
        max-width: 1200px;
        padding: 0 30px;
    }
}

/* Medium Desktop (1024px - 1199px) */
@media (max-width: 1199px) and (min-width: 1024px) {
    .detail-container {
        max-width: 1024px;
        padding: 0 30px;
        grid-template-columns: 1fr 350px;
        gap: 25px;
    }
    
    .sidebar {
        width: 350px;
    }
    
    .main-content {
        padding: 35px;
    }
}

/* Small Desktop/Tablet Landscape (969px - 1023px) */
@media (max-width: 1023px) and (min-width: 969px) {
    .detail-container {
        max-width: 968px;
        padding: 0 25px;
        grid-template-columns: 1fr 320px;
        gap: 20px;
    }
    
    .sidebar {
        width: 320px;
    }
    
    .main-content {
        padding: 30px;
    }
}

/* Tablet Landscape (768px - 968px) */
@media (max-width: 968px) {
    .detail-container {
        grid-template-columns: 1fr;
        margin-top: -20px;
        padding: 0 20px;
        gap: 20px;
    }
    
    .sidebar {
        position: static !important;
        top: auto !important;
        order: -1;
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
        max-height: none;
        overflow-y: visible;
    }
    
    .main-content {
        padding: 30px 25px;
        width: 100%;
    }
}

/* Tablet Portrait (640px - 767px) */
@media (max-width: 767px) and (min-width: 640px) {
    .detail-container {
        padding: 0 15px;
    }
    
    .main-content {
        padding: 25px 20px;
    }
    
    .purchase-card {
        padding: 25px;
    }
}

/* Mobile (425px - 639px) */
@media (max-width: 639px) {
    .detail-container {
        padding: 0 15px;
        margin: -20px auto 30px;
    }
    
    .main-content {
        padding: 25px 20px;
        border-radius: 10px;
    }
    
    .purchase-card {
        padding: 20px;
        border-radius: 10px;
    }
    
    .sidebar {
        max-width: 100%;
    }
}

/* Small Mobile (375px - 424px) */
@media (max-width: 424px) {
    .detail-container {
        padding: 0 12px;
    }
    
    .main-content {
        padding: 20px 15px;
    }
    
    .purchase-card {
        padding: 18px;
    }
}

/* Extra Small Mobile (320px - 374px) */
@media (max-width: 374px) {
    .detail-container {
        padding: 0 12px;
        margin: -15px auto 25px;
    }
    
    .main-content {
        padding: 18px 12px;
    }
    
    .purchase-card {
        padding: 15px;
        border-radius: 8px;
        margin-bottom: 15px;
    }
}

/* Very Small Mobile (<320px) */
@media (max-width: 319px) {
    .detail-container {
        padding: 0 10px;
    }
    
    .main-content {
        padding: 18px 12px;
    }
}

/* ===== SCROLLBAR STYLES ===== */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: #5568d3;
}

/* ===== UTILITY FIXES ===== */

/* Prevent all elements from causing overflow */
* {
    box-sizing: border-box;
}

/* Image responsiveness */
img {
    max-width: 100%;
    height: auto;
}

/* Ensure containers don't overflow */
.container,
.detail-container,
.main-content,
.sidebar,
.purchase-card {
    max-width: 100%;
}
/* ===== END OF RESPONSIVE CSS ===== */