/**
 * Minh Kha Badminton Theme - Main Stylesheet
 * Optimized for Desktop & Mobile
 * Luxury Sports Aesthetics (Dark & Gold Scheme)
 * Pure Vanilla CSS - Ultra-fast, High PageSpeed, 100% Responsive
 */

:root {
    --color-primary-gold: #d4af37;
    --color-gold-light: #f5e7a9;
    --color-gold-dark: #b89326;
    --color-gold-gradient: linear-gradient(135deg, #d4af37 0%, #f6e27a 50%, #cb9b2b 100%);
    --color-dark-bg: #0c0c0c;
    --color-dark-surface: #141414;
    --color-dark-card: #1c1c1c;
    --color-text-main: #1f2937;
    --color-text-muted: #64748b;
    --color-text-light: #f8fafc;
    --color-bg-light: #f8fafc;
    --color-border: #e2e8f0;
    --color-border-dark: #27272a;
    --color-danger: #ef4444;
    --color-success: #10b981;
    --color-zalo: #0068ff;
    --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-gold: 0 4px 15px rgba(212, 175, 55, 0.25);
    --container-width: 1240px;
    --header-height: 72px;
}

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

body {
    font-family: var(--font-family);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-main);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* ==========================================================================
   TOPBAR & HEADER (DESKTOP & MOBILE)
   ========================================================================== */
.site-topbar {
    background-color: var(--color-dark-bg);
    color: #a1a1aa;
    font-size: 12.5px;
    border-bottom: 1px solid #1e1e1e;
    padding: 7px 0;
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.topbar-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.topbar-item svg {
    color: var(--color-primary-gold);
}

.topbar-item strong {
    color: var(--color-gold-light);
}

.site-header {
    background-color: #111111;
    position: sticky;
    top: 0;
    z-index: 990;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    border-bottom: 2px solid #222222;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 20px;
}

/* Branding & Logo */
.site-branding {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-logo-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.site-logo-img,
.custom-logo-link img,
img.custom-logo {
    height: 48px !important;
    max-height: 48px !important;
    width: auto !important;
    max-width: 150px !important;
    object-fit: contain !important;
    border-radius: 6px;
    display: block;
}

.site-title-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    line-height: 1.15;
}

.brand-tagline {
    font-size: 10px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* Header Navigation (Desktop - Tối ưu Menu chuẩn đẹp, không xuống dòng) */
.main-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-menu > li {
    position: relative;
    display: inline-block;
}

.nav-menu > li > a {
    display: inline-flex;
    align-items: center;
    padding: 8px 13px;
    color: #f3f4f6;
    font-size: 13.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    white-space: nowrap !important;
    position: relative;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease;
}

.nav-menu > li > a:hover {
    color: var(--color-primary-gold);
}

.nav-menu > li.current-menu-item > a {
    color: var(--color-primary-gold);
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 13px;
    right: 13px;
    height: 2.5px;
    background: var(--color-gold-gradient);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu > li:hover > a::after,
.nav-menu > li.current-menu-item > a::after {
    transform: scaleX(1);
}

/* Header Right Tools: Search form gọn gàng & Mobile toggle */
.header-right-tools {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.header-search {
    width: 210px;
    position: relative;
    transition: width 0.3s ease;
}

.header-search:focus-within {
    width: 250px;
}

.header-search-form {
    display: flex;
    align-items: center;
    background: #1c1c1c;
    border: 1px solid #333333;
    border-radius: var(--radius-full);
    overflow: hidden;
    transition: all 0.2s ease;
}

.header-search-form:focus-within {
    border-color: var(--color-primary-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
    background: #242424;
}

.header-search-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 7px 14px;
    color: #ffffff;
    font-size: 13px;
    outline: none;
    min-width: 0;
}

.header-search-input::placeholder {
    color: #888888;
}

.header-search-btn {
    background: transparent;
    border: none;
    padding: 0 12px;
    color: var(--color-primary-gold);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle {
    display: none;
    background: #1c1c1c;
    border: 1px solid #333;
    color: #ffffff;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s;
}

.mobile-menu-toggle:hover {
    background: #282828;
    border-color: var(--color-primary-gold);
}

/* ==========================================================================
   OFF-CANVAS MOBILE DRAWER MENU
   ========================================================================== */
.mobile-drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-drawer-backdrop.is-active {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 310px;
    max-width: 85vw;
    background: #121212;
    z-index: 9999;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.mobile-drawer.is-open {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid #222222;
}

.mobile-drawer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-drawer-logo {
    height: 40px;
    width: auto;
    border-radius: 6px;
    object-fit: contain;
}

.mobile-drawer-brand-text {
    display: flex;
    flex-direction: column;
}

.mobile-drawer-brand-text strong {
    font-size: 14px;
    color: var(--color-primary-gold);
    text-transform: uppercase;
}

.mobile-drawer-brand-text small {
    font-size: 11px;
    color: #9ca3af;
}

.mobile-drawer-close {
    background: transparent;
    border: none;
    color: #ffffff;
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.mobile-drawer-close:hover {
    color: var(--color-primary-gold);
}

.mobile-drawer-search {
    padding: 16px 20px;
    border-bottom: 1px solid #222;
}

.mobile-search-form {
    display: flex;
    align-items: center;
    background: #1e1e1e;
    border: 1px solid #333;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.mobile-search-form input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 9px 14px;
    color: #fff;
    font-size: 13px;
    outline: none;
}

.mobile-search-form button {
    background: transparent;
    border: none;
    padding: 0 12px;
    color: var(--color-primary-gold);
    cursor: pointer;
}

.mobile-drawer-nav {
    flex: 1;
    padding: 14px 0;
}

.mobile-nav-list li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #e5e7eb;
    font-size: 14px;
    font-weight: 600;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.mobile-nav-list li a:hover,
.mobile-nav-list li.current-menu-item a {
    color: var(--color-primary-gold);
    background: rgba(212, 175, 55, 0.08);
    border-left-color: var(--color-primary-gold);
}

.mobile-drawer-footer {
    padding: 16px 20px;
    border-top: 1px solid #222;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-drawer-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}

.mobile-drawer-btn.hotline {
    background: var(--color-gold-gradient);
    color: #111;
}

.mobile-drawer-btn.zalo {
    background: #0068ff;
    color: #ffffff;
}

/* ==========================================================================
   MOBILE STICKY BOTTOM BAR (Tối ưu trải nghiệm mua sắm Mobile)
   ========================================================================== */
.mobile-sticky-bottom-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #111111;
    border-top: 2px solid var(--color-primary-gold);
    z-index: 995;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.35);
    height: 60px;
    padding-bottom: env(safe-area-inset-bottom);
}

.mobile-bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: #d1d5db;
    font-size: 11px;
    font-weight: 600;
    text-align: center;
    transition: color 0.15s;
}

.mobile-bar-icon-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-bar-item.btn-call {
    color: #ef4444;
}

.mobile-bar-item.btn-zalo {
    color: #38bdf8;
}

.mobile-bar-item.btn-shop {
    color: var(--color-primary-gold);
}

/* ==========================================================================
   HERO BANNER & HOME FEATURES
   ========================================================================== */
.hero-section {
    background: radial-gradient(circle at top right, #1f1a10 0%, #0d0d0d 60%, #050505 100%);
    color: #ffffff;
    padding: 50px 0 60px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid #222222;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 40px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 12px;
    background: rgba(212, 175, 55, 0.12);
    border: 1px solid var(--color-primary-gold);
    border-radius: var(--radius-full);
    color: var(--color-gold-light);
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 14px;
    color: #ffffff;
}

.hero-title .highlight-gold {
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 15px;
    color: #d1d5db;
    line-height: 1.6;
    margin-bottom: 24px;
    max-width: 540px;
}

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-primary-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--color-gold-gradient);
    color: #0d0d0d;
    font-weight: 700;
    font-size: 13.5px;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    box-shadow: var(--shadow-gold);
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.45);
}

.btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: #ffffff;
    font-weight: 600;
    font-size: 13.5px;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
    transition: all 0.2s;
}

.btn-outline-light:hover {
    border-color: var(--color-primary-gold);
    color: var(--color-primary-gold);
    background: rgba(212, 175, 55, 0.08);
}

.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.hero-card-featured {
    background: linear-gradient(145deg, #1c1a16 0%, #111111 100%);
    border: 1px solid #332d1d;
    padding: 26px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    text-align: center;
    position: relative;
    max-width: 360px;
    width: 100%;
}

.hero-card-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    background: var(--color-gold-gradient);
    color: #111;
    font-size: 10.5px;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.hero-card-img {
    height: 160px;
    margin: 8px auto 16px;
    object-fit: contain;
}

.hero-card-title {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
}

.hero-card-specs {
    font-size: 12px;
    color: #9ca3af;
    margin-bottom: 14px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

/* ==========================================================================
   4 PILLARS COMMITMENTS BAR
   ========================================================================== */
.commitments-bar {
    background: #ffffff;
    padding: 30px 0;
    border-bottom: 1px solid var(--color-border);
}

.commitments-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.commitment-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    border-radius: var(--radius-md);
    background: #ffffff;
    border: 1px solid #f1f5f9;
    transition: transform 0.2s, box-shadow 0.2s;
}

.commitment-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: #f6e27a;
}

.commitment-icon {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.15) 0%, rgba(212, 175, 55, 0.05) 100%);
    border: 1px solid rgba(212, 175, 55, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gold-dark);
}

.commitment-info h4 {
    font-size: 14px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 3px;
}

.commitment-info p {
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* ==========================================================================
   SECTIONS: CATEGORIES, PRODUCTS, SERVICE, REVIEWS
   ========================================================================== */
.section-padding {
    padding: 50px 0;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 35px;
    position: relative;
}

.section-subtitle {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 700;
    color: var(--color-gold-dark);
    text-transform: uppercase;
    letter-spacing: 1.8px;
    margin-bottom: 5px;
}

.section-title {
    font-size: 26px;
    font-weight: 800;
    color: #111827;
    line-height: 1.3;
}

.section-title::after {
    content: '';
    display: block;
    width: 44px;
    height: 3px;
    background: var(--color-gold-gradient);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Category Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.category-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 12px;
    text-align: center;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.category-card:hover {
    border-color: var(--color-primary-gold);
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.06);
}

.category-icon-box {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gold-dark);
    margin-bottom: 10px;
    transition: all 0.2s;
}

.category-card:hover .category-icon-box {
    background: var(--color-gold-gradient);
    color: #111;
}

.category-card h3 {
    font-size: 13.5px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 2px;
}

.category-card span {
    font-size: 11.5px;
    color: #94a3b8;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.product-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.25s ease;
    position: relative;
}

.product-card:hover {
    border-color: var(--color-primary-gold);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
    transform: translateY(-3px);
}

.product-badge-group {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 5;
}

.badge-tag {
    font-size: 9.5px;
    font-weight: 800;
    padding: 3px 7px;
    border-radius: 3px;
    text-transform: uppercase;
}

.badge-tag.brand {
    background: #111827;
    color: #ffffff;
}

.badge-tag.hot {
    background: #ef4444;
    color: #ffffff;
}

.product-thumb-link {
    display: block;
    padding: 16px;
    background: #fafafa;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-thumb-link img {
    height: 170px;
    width: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.product-card:hover .product-thumb-link img {
    transform: scale(1.04);
}

.product-card-body {
    padding: 14px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-card-category {
    font-size: 11px;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.product-card-title {
    font-size: 14px;
    font-weight: 700;
    color: #111827;
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 40px;
}

.product-card-title a:hover {
    color: var(--color-gold-dark);
}

.product-price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    margin-bottom: 12px;
}

.price-contact-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #96740b;
    font-size: 13px;
    font-weight: 800;
    background: rgba(212, 175, 55, 0.12);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #10b981;
    display: inline-block;
    animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.btn-contact-product {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: #111111;
    color: #ffffff;
    font-size: 12.5px;
    font-weight: 700;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-contact-product:hover {
    background: var(--color-primary-gold);
    color: #111111;
    border-color: var(--color-primary-gold);
}

/* Badminton Service Banner */
.service-feature-section {
    background: #0f172a;
    color: #ffffff;
    padding: 50px 0;
    border-top: 1px solid #1e293b;
    border-bottom: 1px solid #1e293b;
}

.service-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 40px;
}

.service-content h2 {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 14px;
}

.service-content h2 span {
    color: var(--color-primary-gold);
}

.service-content p {
    color: #cbd5e1;
    font-size: 14.5px;
    line-height: 1.65;
    margin-bottom: 20px;
}

.service-features-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.service-feat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    color: #f1f5f9;
}

.service-feat-item svg {
    color: var(--color-primary-gold);
    flex-shrink: 0;
}

/* Customer 5-Star Reviews Box */
.reviews-section {
    background: #f8fafc;
    padding: 50px 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.review-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.review-stars {
    display: flex;
    gap: 4px;
    color: #eab308;
    margin-bottom: 10px;
}

.review-text {
    font-size: 13.5px;
    color: #475569;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.review-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-gold-gradient);
    color: #111;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}

.review-info h5 {
    font-size: 13.5px;
    font-weight: 700;
    color: #0f172a;
}

.review-info span {
    font-size: 11.5px;
    color: #94a3b8;
}

/* ==========================================================================
   BREADCRUMBS
   ========================================================================== */
.site-breadcrumbs {
    background: #f8fafc;
    border-bottom: 1px solid var(--color-border);
    padding: 10px 0;
    font-size: 12.5px;
    color: #64748b;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.breadcrumb-list a:hover {
    color: var(--color-gold-dark);
}

.breadcrumb-separator {
    color: #cbd5e1;
}

.breadcrumb-current {
    color: #0f172a;
    font-weight: 600;
}

/* ==========================================================================
   SINGLE PRODUCT DETAILS (Tối ưu Desktop & Mobile)
   ========================================================================== */
.single-product-wrap {
    padding: 30px 20px 50px;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 36px;
    margin-bottom: 40px;
    align-items: start;
}

.product-gallery-box {
    background: #fafafa;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    position: sticky;
    top: 90px;
}

.product-gallery-main img {
    max-height: 380px;
    margin: 0 auto;
    object-fit: contain;
}

/* Racket showcase placeholder */
.product-racket-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.racket-brand-pill {
    background: #111827;
    color: var(--color-primary-gold);
    font-size: 11px;
    font-weight: 800;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
}

.product-showcase-logo {
    max-height: 220px;
    margin-bottom: 20px;
    object-fit: contain;
}

.racket-badge-info strong {
    display: block;
    font-size: 15px;
    color: #111827;
    margin-bottom: 2px;
}

.racket-badge-info span {
    font-size: 12px;
    color: #94a3b8;
}

.product-summary-box {
    display: flex;
    flex-direction: column;
}

.product-meta-top {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 12.5px;
    color: #64748b;
}

.product-brand-tag {
    background: #111827;
    color: #ffffff;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
}

.product-stock-status {
    color: #10b981;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.product-detail-title {
    font-size: 24px;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.3;
    margin-bottom: 14px;
}

.product-price-section {
    background: #fefce8;
    border: 1px solid #fef08a;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.product-price-contact {
    font-size: 20px;
    font-weight: 800;
    color: #854d0e;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.product-call-notice {
    font-size: 12.5px;
    color: #a16207;
}

.product-promo-badge {
    background: rgba(212, 175, 55, 0.18);
    border: 1px dashed var(--color-primary-gold);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    color: #78350f;
    font-weight: 700;
    white-space: nowrap;
}

/* Action CTA buttons */
.product-cta-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.btn-cta-hotline {
    background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 13.5px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 4px 12px rgba(225, 29, 72, 0.25);
    transition: transform 0.2s;
}

.btn-cta-hotline:hover {
    transform: translateY(-2px);
    color: #ffffff;
}

.btn-cta-hotline small {
    font-size: 11px;
    opacity: 0.88;
    font-weight: normal;
}

.btn-cta-zalo {
    background: linear-gradient(135deg, #0068ff 0%, #0050c7 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 13.5px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 104, 255, 0.25);
    transition: transform 0.2s;
}

.btn-cta-zalo:hover {
    transform: translateY(-2px);
    color: #ffffff;
}

.btn-cta-zalo small {
    font-size: 11px;
    opacity: 0.88;
    font-weight: normal;
}

.btn-cta-title {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Store Commitments on Product Page */
.product-commitments {
    background: #f8fafc;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    margin-bottom: 20px;
}

.commitments-list-single {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    font-size: 12.5px;
    color: #334155;
}

.commitments-list-single li {
    display: flex;
    align-items: center;
    gap: 7px;
}

.commitments-list-single li svg {
    color: #10b981;
    flex-shrink: 0;
}

/* Badminton Technical Specs Table */
.badminton-specs-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-top: 10px;
}

.specs-card-header {
    background: #0f172a;
    color: #ffffff;
    padding: 12px 18px;
    font-size: 15px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.specs-card-header svg {
    color: var(--color-primary-gold);
}

.specs-table-responsive {
    width: 100%;
    overflow-x: auto;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.specs-table tr {
    border-bottom: 1px solid #f1f5f9;
}

.specs-table tr:nth-child(even) {
    background: #f8fafc;
}

.specs-table th {
    text-align: left;
    padding: 10px 18px;
    color: #475569;
    font-weight: 600;
    width: 38%;
}

.specs-table td {
    padding: 10px 18px;
    color: #0f172a;
    font-weight: 500;
}

.product-description-tabs {
    margin-top: 35px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 26px;
}

.product-tabs-heading {
    font-size: 20px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--color-primary-gold);
    padding-bottom: 10px;
}

.related-products-section {
    margin-top: 45px;
}

.related-title-wrap {
    text-align: left;
    margin-bottom: 20px;
}

.related-heading {
    font-size: 20px;
    font-weight: 800;
    color: #0f172a;
}

/* ==========================================================================
   BLOG & SINGLE POST (Mục lục ẩn ban đầu, Review 5 sao, Sidebar xem nhiều)
   ========================================================================== */
.post-layout-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 36px;
    padding: 35px 0 50px;
}

.single-post-main {
    background: #ffffff;
}

.single-post-header {
    margin-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 18px;
}

.single-post-title {
    font-size: 28px;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.3;
    margin-bottom: 12px;
}

.single-post-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 12.5px;
    color: #64748b;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.meta-item svg {
    color: var(--color-gold-dark);
}

.single-post-content {
    font-size: 15.5px;
    line-height: 1.8;
    color: #27272a;
}

.single-post-content p {
    margin-bottom: 18px;
}

.single-post-content h2 {
    font-size: 22px;
    font-weight: 800;
    color: #0f172a;
    margin: 32px 0 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f1f5f9;
    scroll-margin-top: 90px;
}

.single-post-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #18181b;
    margin: 24px 0 10px;
    scroll-margin-top: 90px;
}

/* ==========================================================================
   TABLE OF CONTENTS (ẨN BAN ĐẦU - COLLAPSED BY DEFAULT)
   ========================================================================== */
.minhkha-toc-container {
    background: #fdfdfd;
    border: 1px solid #e2e8f0;
    border-left: 4px solid var(--color-primary-gold);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    margin: 22px 0 28px;
    box-shadow: var(--shadow-sm);
}

.toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.toc-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toc-icon {
    color: var(--color-gold-dark);
    display: flex;
    align-items: center;
}

.toc-title {
    font-size: 15px;
    font-weight: 700;
    color: #0f172a;
}

.toc-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-full);
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    color: #475569;
    cursor: pointer;
    transition: all 0.2s;
}

.toc-toggle-btn:hover {
    background: var(--color-primary-gold);
    color: #111;
    border-color: var(--color-primary-gold);
}

.toc-chevron {
    transition: transform 0.25s ease;
}

.minhkha-toc-container.is-expanded .toc-chevron {
    transform: rotate(180deg);
}

.toc-content-wrapper {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #e2e8f0;
}

.toc-list {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.toc-item a {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    color: #334155;
    font-size: 13.5px;
    line-height: 1.5;
}

.toc-item a:hover {
    color: var(--color-gold-dark);
    text-decoration: underline;
}

.toc-item-h3 {
    padding-left: 18px;
}

.toc-num {
    font-weight: 700;
    color: var(--color-primary-gold);
    font-size: 12.5px;
}

/* ==========================================================================
   5-STAR REVIEW WIDGET
   ========================================================================== */
.minhkha-rating-box {
    background: linear-gradient(135deg, #fffbeb 0%, #ffffff 100%);
    border: 1px solid #fde68a;
    border-radius: var(--radius-md);
    padding: 22px;
    margin: 35px 0;
    text-align: center;
}

.rating-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 17px;
    font-weight: 800;
    color: #92400e;
    margin-bottom: 5px;
}

.rating-desc {
    font-size: 13.5px;
    color: #78350f;
    margin-bottom: 14px;
}

.rating-stars-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.rating-stars {
    display: flex;
    gap: 6px;
}

.star-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: #d1d5db;
    transition: transform 0.15s, color 0.15s;
}

.star-btn:hover,
.star-btn.is-active,
.star-btn.is-hover {
    color: #f59e0b;
    transform: scale(1.15);
}

.rating-result-summary {
    font-size: 13.5px;
    color: #4b5563;
}

.rating-score-num {
    font-size: 17px;
    font-weight: 800;
    color: #b45309;
}

.rating-feedback-msg {
    margin-top: 10px;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    background: #ecfdf5;
    color: #065f46;
    font-size: 12.5px;
    font-weight: 600;
    display: inline-block;
}

/* ==========================================================================
   SIDEBAR & BÀI VIẾT XEM NHIỀU
   ========================================================================== */
.site-sidebar {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.minhkha-widget {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-size: 16px;
    font-weight: 800;
    color: #0f172a;
    padding-bottom: 10px;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--color-primary-gold);
    display: flex;
    align-items: center;
    gap: 8px;
}

.widget-title-icon {
    color: var(--color-primary-gold);
    display: flex;
}

/* Popular Posts */
.popular-posts-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.popular-post-item {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    padding-bottom: 12px;
    border-bottom: 1px solid #f1f5f9;
}

.popular-post-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.rank-badge {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #f1f5f9;
    color: #64748b;
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.rank-1 .rank-badge {
    background: var(--color-gold-gradient);
    color: #111;
}

.rank-2 .rank-badge {
    background: #94a3b8;
    color: #fff;
}

.rank-3 .rank-badge {
    background: #b45309;
    color: #fff;
}

.popular-post-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background: #f8fafc;
}

.popular-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.popular-post-info {
    flex: 1;
    min-width: 0;
}

.popular-post-title {
    font-size: 13px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 3px;
}

.popular-post-title a:hover {
    color: var(--color-gold-dark);
}

.popular-post-meta {
    font-size: 11px;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 8px;
}

.popular-post-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Sidebar Support Card */
.sidebar-support-card {
    background: radial-gradient(circle at top right, #1f1b12 0%, #111 100%);
    border: 1px solid #332b1a;
    border-radius: var(--radius-md);
    padding: 20px;
    color: #ffffff;
    text-align: center;
}

.sidebar-support-card h4 {
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 6px;
    color: var(--color-primary-gold);
}

.sidebar-support-card p {
    font-size: 12.5px;
    color: #d1d5db;
    margin-bottom: 16px;
    line-height: 1.5;
}

.sidebar-support-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--color-gold-gradient);
    color: #111;
    font-weight: 800;
    font-size: 13px;
    padding: 9px 16px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    box-shadow: var(--shadow-gold);
}

/* ==========================================================================
   FOOTER & FLOATING ACTIONS
   ========================================================================== */
.site-footer {
    background-color: #0d0d0d;
    color: #9ca3af;
    padding: 50px 0 20px;
    border-top: 3px solid var(--color-primary-gold);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 8px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 26px;
    height: 2px;
    background: var(--color-primary-gold);
}

.footer-about-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.footer-about-desc {
    font-size: 13.5px;
    line-height: 1.6;
    margin-bottom: 16px;
    color: #a1a1aa;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12.5px;
    margin-bottom: 8px;
    color: #d1d5db;
}

.footer-contact-item svg {
    color: var(--color-primary-gold);
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-links-list li {
    margin-bottom: 8px;
}

.footer-links-list a {
    font-size: 13px;
    color: #a1a1aa;
    transition: color 0.2s, padding-left 0.2s;
    display: inline-block;
}

.footer-links-list a:hover {
    color: var(--color-primary-gold);
    padding-left: 3px;
}

.footer-bottom {
    border-top: 1px solid #222222;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12.5px;
    color: #6b7280;
}

/* Desktop Floating Actions */
.floating-contact-box {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 990;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.floating-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s;
}

.floating-btn:hover {
    transform: scale(1.1);
}

.btn-floating-zalo {
    background: #0068ff;
}

.btn-floating-hotline {
    background: #ef4444;
    animation: phone-vibe 1.8s infinite ease-in-out;
}

@keyframes phone-vibe {
    0%, 100% { transform: rotate(0deg) scale(1); }
    10%, 30% { transform: rotate(-15deg) scale(1.05); }
    20%, 40% { transform: rotate(15deg) scale(1.05); }
    50% { transform: rotate(0deg) scale(1); }
}

.btn-back-to-top {
    background: #27272a;
    border: 1px solid #3f3f46;
    display: none;
    cursor: pointer;
}

.btn-back-to-top.is-visible {
    display: flex;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (TABLET & MOBILE)
   ========================================================================== */
@media (max-width: 1024px) {
    :root {
        --header-height: 64px;
    }
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-title {
        font-size: 32px;
    }
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-cta-group {
        justify-content: center;
    }
    .commitments-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    .product-gallery-box {
        position: static;
    }
    .service-grid {
        grid-template-columns: 1fr;
    }
    .post-layout-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    body {
        padding-bottom: 60px; /* Bù trừ cho Mobile Sticky Bottom Bar */
    }

    :root {
        --header-height: 60px;
    }

    .site-topbar {
        display: none;
    }

    /* Header Mobile */
    .header-inner {
        height: var(--header-height);
        gap: 12px;
    }

    .site-logo-img,
    .custom-logo-link img,
    img.custom-logo {
        height: 40px !important;
        max-height: 40px !important;
    }

    .site-title-text {
        display: none !important; /* Ẩn chữ trùng lặp vì Logo đã có MINH KHA BADMINTON */
    }

    .header-right-tools {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .header-search {
        display: none;
    }

    .main-navigation {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        width: 38px;
        height: 38px;
    }

    /* Ẩn floating icons góc phải trên mobile để KHÔNG che nội dung */
    .floating-contact-box {
        display: none !important;
    }

    /* Hiện Mobile Sticky Bottom Bar */
    .mobile-sticky-bottom-bar {
        display: flex;
    }

    /* Hero Section Mobile */
    .hero-section {
        padding: 30px 0 40px;
    }

    .hero-title {
        font-size: 26px;
        line-height: 1.25;
    }

    .hero-desc {
        font-size: 13.5px;
        margin-bottom: 18px;
    }

    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary-gold, .btn-outline-light {
        width: 100%;
        padding: 12px 16px;
    }

    .hero-card-featured {
        padding: 20px;
    }

    .hero-card-img {
        height: 130px;
    }

    /* Commitments Mobile: 2x2 grid */
    .commitments-bar {
        padding: 20px 0;
    }

    .commitments-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .commitment-item {
        padding: 10px;
        gap: 8px;
    }

    .commitment-icon {
        width: 34px;
        height: 34px;
    }

    .commitment-info h4 {
        font-size: 12.5px;
    }

    .commitment-info p {
        display: none; /* Tối giản trên mobile */
    }

    /* Categories Mobile */
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .category-card {
        padding: 14px 8px;
    }

    .category-icon-box {
        width: 44px;
        height: 44px;
        margin-bottom: 6px;
    }

    .category-card h3 {
        font-size: 12.5px;
    }

    /* Products Grid Mobile: 2 columns chuẩn Shopee / Tiki */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .product-card-body {
        padding: 10px;
    }

    .product-thumb-link {
        padding: 10px;
    }

    .product-thumb-link img {
        height: 130px;
    }

    .product-card-title {
        font-size: 12.5px;
        height: 36px;
        margin-bottom: 6px;
    }

    .price-contact-badge {
        font-size: 11.5px;
        padding: 3px 6px;
    }

    .btn-contact-product {
        font-size: 11px;
        padding: 7px 8px;
    }

    /* Single Product Mobile */
    .single-product-wrap {
        padding: 20px 15px 40px;
    }

    .product-detail-title {
        font-size: 20px;
    }

    .product-price-section {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 14px;
    }

    .product-promo-badge {
        width: 100%;
        text-align: center;
        white-space: normal;
    }

    .product-cta-buttons {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .btn-cta-hotline, .btn-cta-zalo {
        padding: 12px;
        font-size: 13px;
    }

    .commitments-list-single {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .specs-table th, .specs-table td {
        padding: 8px 12px;
        font-size: 12.5px;
    }

    /* Single Post Mobile */
    .single-post-title {
        font-size: 22px;
    }

    .single-post-content h2 {
        font-size: 19px;
    }

    .single-post-content h3 {
        font-size: 16px;
    }

    /* Reviews Mobile */
    .reviews-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    /* Footer Mobile */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}