/* ===== MOBILE: dưới 768px ===== */
@media (max-width: 767px) {

    .container {
        padding: 0 12px
    }

    /* TOP BAR */
    .topbar {
        padding: 6px 0
    }

    .topbar-inner {
        font-size: 11px;
        gap: 8px
    }

    .topbar-left,
    .topbar-right {
        gap: 12px
    }

    .topbar-left span:nth-child(2) {
        display: none
    }

    .topbar-right a {
        font-size: 11px
    }

    .topbar-right a:nth-child(1),
    .topbar-right a:nth-child(2) {
        display: none
    }

    /* HEADER */
    .header {
        padding: 8px 0
    }

    .header-inner {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 8px;
        align-items: center
    }

    .logo {
        min-width: auto;
        gap: 8px
    }

    .logo-mark {
        width: 60px;
        height: 36px;
        flex-basis: 42px
    }

    .logo-symbol-img {
        width: 72px;
        transform: translate(-5px, -5px)
    }

    .logo-copy strong {
        font-size: 15px
    }

    .logo-copy small {
        display: none
    }

    .header-actions {
        min-width: auto;
        gap: 8px
    }

    .btn-sell {
        padding: 7px 10px 7px 8px;
        border-radius: 6px;
        gap: 7px
    }

    .btn-sell-icon {
        width: 26px;
        height: 26px;
        flex-basis: 26px
    }

    .btn-sell-icon i {
        display: inline-block;
        font-size: 14px
    }

    .btn-sell-text strong {
        font-size: 11px
    }

    .btn-sell-text small {
        font-size: 9px
    }

    .search-bar {
        grid-column: 1 / -1;
        height: 40px;
        max-width: none;
        border-radius: 6px
    }

    .search-bar input {
        padding: 0 12px;
        font-size: 13px
    }

    .search-btn {
        width: 104px;
        padding: 0 12px;
        font-size: 12px;
        gap: 4px
    }

    /* NAV - sidebar trượt từ trái */
    .nav-inner {
        min-height: 44px;
        justify-content: flex-end
    }

    .hamburger {
        display: flex;
        align-items: center;
        gap: 6px;
        background: var(--color-primary-dark);
        color: var(--color-white);
        padding: 9px 14px;
        border-radius: 4px;
        font-size: 13px;
        font-weight: 700;
        border: none;
        cursor: pointer;
        transition: background .2s
    }

    .hamburger:hover {
        background: var(--color-primary)
    }

    .hamburger i {
        font-size: 14px
    }

    /* Sidebar drawer */
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: min(84vw, 304px);
        height: 100vh;
        background:
            radial-gradient(circle at 14% 0, var(--accent-14), transparent 30%),
            linear-gradient(180deg, var(--color-sidebar-start) 0%, var(--color-sidebar-mid) 42%, var(--color-sidebar-end) 100%);
        z-index: 9999;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 0 16px 18px;
        transform: translateX(-100%);
        transition: transform .35s cubic-bezier(.22, 1, .36, 1);
        overflow-y: auto;
        border-right: 1px solid var(--white-12);
        gap: 3px;
    }

    .nav-menu.open {
        transform: translateX(0)
    }

    .nav-menu::before {
        display: none
    }

    /* Sidebar header */
    .sidebar-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: relative;
        padding: 18px 0 16px;
        margin-bottom: 8px;
        background: transparent;
        border-bottom: 1px solid var(--white-12)
    }

    .sidebar-logo {
        display: flex;
        align-items: center;
        padding-right: 54px
    }

    .sidebar-logo-img {
        height: 54px;
        width: auto;
        display: block
    }

    .sidebar-close {
        position: absolute;
        top: 50%;
        right: 0;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--white-12);
        border: 1px solid var(--white-20);
        color: var(--color-white);
        font-size: 14px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transform: translateY(-50%);
        transition: background .2s, transform .2s, border-color .2s
    }

    .sidebar-close:hover {
        background: var(--white-20);
        border-color: var(--white-26);
        transform: translateY(-50%) rotate(90deg)
    }

    /* Menu items */
    .nav-menu li {
        list-style: none
    }

    .nav-menu li a {
        min-height: 44px;
        padding: 11px 16px;
        font-size: 14px;
        font-weight: 600;
        border-radius: 9px;
        border-bottom: none;
        white-space: nowrap;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        width: 100%;
        color: var(--white-84);
        transition: background .2s, color .2s, transform .2s, box-shadow .2s
    }

    .nav-menu li a i {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 28px;
        border-radius: 8px;
        font-size: 14px;
        color: var(--white-68);
        background: var(--white-08);
        transition: background .2s, color .2s
    }

    .nav-menu li a:hover {
        background: var(--white-09);
        color: var(--color-white);
        transform: translateX(2px)
    }

    .nav-menu li a:hover i {
        color: var(--color-accent);
        background: var(--accent-14)
    }

    .nav-menu li:last-child a {
        border-bottom: none
    }

    .nav-menu li a.active {
        background: linear-gradient(135deg, var(--accent-22), var(--white-11));
        color: var(--color-white);
        box-shadow: inset 3px 0 0 var(--color-accent);
    }

    .nav-menu li a.active i {
        color: var(--color-sidebar-icon);
        background: var(--color-accent)
    }

    .nav-badge {
        transform: none;
        margin-left: auto
    }

    /* Sidebar divider & contact */
    .sidebar-divider {
        height: 1px;
        background: var(--white-12);
        margin: 12px 0
    }

    .sidebar-contact {
        padding: 13px 14px;
        margin-top: auto;
        border-radius: 10px;
        background: var(--white-07);
        border: 1px solid var(--white-10)
    }

    .sidebar-contact p {
        font-size: 12px;
        color: var(--white-68);
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 8px
    }

    .sidebar-contact p i {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 22px;
        height: 22px;
        border-radius: 7px;
        font-size: 12px;
        color: var(--color-accent);
        background: var(--white-08)
    }

    /* Overlay backdrop */
    .menu-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--overlay-dark);
        backdrop-filter: blur(3px);
        z-index: 9998;
        opacity: 0;
        transition: opacity .3s ease
    }

    .menu-overlay.active {
        display: block;
        opacity: 1
    }

    /* HERO */
    .hero {
        padding: 10px 0
    }

    .hero-inner {
        flex-direction: column;
        gap: 12px
    }

    .hero-slider {
        flex: none;
        width: 100%;
        min-height: 260px
    }

    .slide-content {
        min-height: 260px;
        padding: 20px 50px
    }

    .hero-badge {
        font-size: 9px;
        padding: 4px 10px
    }

    .badge-dot {
        width: 8px;
        height: 8px
    }

    .hero-content h1 {
        font-size: 20px
    }

    .hero-content .highlight {
        font-size: 28px
    }

    .hero-desc {
        font-size: 13px;
        margin-bottom: 14px
    }

    .hero-features {
        flex-direction: column;
        gap: 6px
    }

    .hero-feat {
        padding: 8px 12px;
        font-size: 11px
    }

    .slider-arrow {
        width: 28px;
        height: 28px;
        font-size: 10px
    }

    .hero-dealer {
        padding: 16px
    }

    .hero-dealer h3 {
        font-size: 16px
    }

    .btn-locate {
        padding: 10px 16px;
        font-size: 13px
    }

    .dealer-stats {
        gap: 8px
    }

    .stat-num {
        font-size: 16px
    }

    .stat-label {
        font-size: 10px
    }

    .quick-services {
        padding: 0 0 16px
    }

    .quick-services-inner {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        overflow: visible;
        padding-bottom: 0
    }

    .quick-service-card {
        min-height: 96px;
        grid-template-columns: 40px minmax(0, 1fr);
        gap: 10px;
        padding: 12px 11px
    }

    .quick-service-icon {
        width: 40px;
        height: 40px;
        flex-basis: 40px
    }

    .quick-service-icon i {
        font-size: 22px
    }

    .quick-service-copy strong {
        font-size: 11px
    }

    .quick-service-copy small {
        margin-top: 5px;
        font-size: 9px
    }

    .quick-service-copy em {
        margin-top: 8px;
        font-size: 10px
    }

    /* SECTIONS */
    .section {
        padding: 18px 0
    }

    .section-head h2 {
        font-size: 15px
    }

    /* BRANDS */
    .brand-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px
    }

    .brand-item {
        padding: 10px 6px
    }

    .brand-logo {
        height: 30px;
        font-size: 13px
    }

    .brand-item span {
        font-size: 9px
    }

    .supplier-section-head {
        margin-bottom: 12px
    }

    .supplier-section-head h2 {
        font-size: 15px
    }

    .supplier-section-head a {
        font-size: 12px
    }

    .supplier-carousel,
    .supplier-region-grid {
        display: flex;
        gap: 12px;
        overflow-x: auto;
        padding-bottom: 4px;
        scroll-snap-type: x mandatory
    }

    .supplier-card {
        flex: 0 0 250px;
        scroll-snap-align: start
    }

    .supplier-card>img {
        height: 88px
    }

    .supplier-card-body {
        padding: 11px 12px 12px
    }

    .supplier-card h3 {
        font-size: 13px
    }

    .supplier-card p {
        font-size: 11px;
        margin-top: 6px
    }

    .supplier-card-body>a {
        min-height: 34px;
        font-size: 12px
    }

    .supplier-field-grid {
        display: flex;
        gap: 10px;
        overflow-x: auto;
        padding-bottom: 4px;
        scroll-snap-type: x mandatory
    }

    .supplier-field-card {
        flex: 0 0 132px;
        min-height: 108px;
        padding: 14px 8px;
        scroll-snap-align: start
    }

    .supplier-field-card i {
        font-size: 30px
    }

    .supplier-field-card strong {
        font-size: 12px
    }

    .supplier-field-card span {
        font-size: 10px
    }

    .supplier-region-card {
        flex: 0 0 210px;
        scroll-snap-align: start
    }

    .supplier-region-card img {
        height: 74px
    }

    .supplier-region-card strong {
        font-size: 13px
    }

    .supplier-region-card span {
        font-size: 11px
    }

    .top-rated-head {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 10px;
        margin-bottom: 12px
    }

    .top-rated-head h2 {
        font-size: 15px
    }

    .top-rated-head>a {
        font-size: 12px
    }

    .top-rated-tabs {
        grid-column: 1 / -1;
        gap: 6px;
        overflow-x: auto
    }

    .top-rated-tabs button {
        min-height: 32px;
        padding: 0 12px;
        font-size: 11px;
        white-space: nowrap
    }

    .top-rated-track {
        gap: 12px
    }

    .top-rated-card {
        flex-basis: 320px;
        min-height: 168px;
        grid-template-columns: 104px minmax(0, 1fr);
        gap: 12px;
        padding: 16px 12px 12px
    }

    .top-rated-logo {
        min-height: 96px
    }

    .top-rated-logo img {
        height: 84px
    }

    .top-rated-body h3 {
        font-size: 12px;
        min-height: 34px
    }

    .top-rated-body p {
        font-size: 10px;
        margin-top: 6px
    }

    .top-rated-body a {
        min-height: 30px;
        font-size: 11px;
        min-width: 118px
    }

    .top-rated-arrow {
        display: none
    }

    .tech-section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 12px
    }

    .tech-title-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px
    }

    .tech-title-row h2 {
        font-size: 15px
    }

    .tech-title-row span {
        font-size: 12px
    }

    .tech-section-head>a {
        font-size: 12px
    }

    .tech-grid {
        display: flex;
        gap: 12px;
        overflow-x: auto;
        padding-bottom: 4px;
        scroll-snap-type: x mandatory
    }

    .tech-card {
        flex: 0 0 320px;
        padding: 12px;
        scroll-snap-align: start
    }

    .tech-main {
        grid-template-columns: 104px minmax(0, 1fr);
        gap: 12px
    }

    .tech-photo {
        height: 116px
    }

    .tech-info h3 {
        font-size: 14px
    }

    .tech-info p {
        font-size: 11px;
        margin-top: 6px
    }

    .tech-skill {
        font-size: 12px !important
    }

    .tech-action {
        min-height: 36px;
        margin-top: 12px;
        font-size: 12px
    }

    /* ARTICLES */
    .article-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px
    }

    .article-img {
        height: 96px
    }

    .article-card h4 {
        font-size: 11px;
        padding: 8px;
        line-height: 1.35;
        height: calc(2.7em + 16px)
    }

    /* TRUST */
    .trust-badges {
        padding: 12px 0
    }

    .trust-inner {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px
    }

    .trust-item {
        align-items: flex-start;
        gap: 8px
    }

    .trust-item i {
        width: 28px;
        flex-basis: 28px;
        font-size: 26px
    }

    .trust-item strong {
        font-size: 10px;
        line-height: 1.25
    }

    .trust-item small {
        font-size: 9px;
        line-height: 1.25
    }

    /* FOOTER */
    .footer {
        padding: 28px 0 20px
    }

    .footer-inner {
        flex-direction: column;
        gap: 20px
    }

    .footer-about {
        flex: none
    }

    .footer-col {
        flex: none
    }

    .footer-col h4 {
        font-size: 13px;
        margin-bottom: 10px
    }

    .auth-page {
        padding: 22px 0
    }

    .login-page {
        padding: 0 0 24px
    }

    .auth-breadcrumb {
        padding: 10px 0;
        gap: 7px;
        font-size: 12px;
        overflow-x: auto;
        white-space: nowrap
    }

    .auth-title {
        padding: 22px 0 18px
    }

    .auth-title h1 {
        font-size: 23px
    }

    .auth-title p {
        font-size: 13px;
        line-height: 1.55
    }

    .login-layout {
        grid-template-columns: 1fr;
        gap: 16px
    }

    .login-card {
        padding: 0 16px 22px;
        border-radius: 10px
    }

    .auth-tabs {
        margin-bottom: 22px
    }

    .auth-tab {
        min-height: 68px;
        font-size: 14px;
        gap: 8px
    }

    .auth-tab i {
        font-size: 20px
    }

    .auth-switch-inline {
        font-size: 13px;
        margin-bottom: 24px
    }

    .login-form {
        gap: 20px
    }

    .login-form .form-group label {
        font-size: 13px
    }

    .login-form .form-group input,
    .password-field {
        height: 48px;
        font-size: 13px
    }

    .login-form .form-group small {
        font-size: 11px
    }

    .login-options {
        margin-top: 6px
    }

    .login-submit {
        height: 50px;
        font-size: 14px
    }

    .auth-divider {
        margin: 24px 0 18px;
        gap: 12px
    }

    .social-login {
        grid-template-columns: 1fr;
        gap: 10px
    }

    .social-btn {
        height: 50px
    }

    .auth-info {
        margin-top: 22px;
        padding: 16px;
        gap: 12px
    }

    .login-side-card,
    .login-support-card {
        padding: 20px 16px;
        border-radius: 10px
    }

    .login-hero-visual {
        height: 160px;
        margin-bottom: 18px
    }

    .login-side-card h2,
    .login-support-card h3 {
        font-size: 17px
    }

    .login-feature {
        grid-template-columns: 44px 1fr;
        gap: 12px;
        margin-top: 18px
    }

    .login-feature>span {
        width: 44px;
        height: 44px;
        font-size: 20px
    }

    .login-benefits {
        margin-top: 18px;
        padding: 18px 16px;
        grid-template-columns: 1fr;
        gap: 16px;
        border-radius: 10px
    }

    .benefit-item {
        grid-template-columns: 38px 1fr;
        gap: 12px
    }

    .benefit-item i {
        font-size: 32px
    }

    .register-page {
        padding-bottom: 22px
    }

    .register-hero {
        grid-template-columns: 1fr;
        padding: 20px 16px;
        margin: 18px 0;
        gap: 18px
    }

    .register-hero h1 {
        font-size: 22px
    }

    .register-hero p {
        font-size: 13px
    }

    .register-hero-benefits {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px
    }

    .register-hero-image {
        height: 150px
    }

    .register-steps {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        padding-bottom: 8px
    }

    .step {
        flex: 0 0 auto;
        font-size: 12px
    }

    .step::after {
        width: 30px;
        flex: 0 0 30px
    }

    .register-layout {
        grid-template-columns: 1fr
    }

    .register-form-card,
    .side-card {
        padding: 18px 14px
    }

    .form-grid,
    .upload-grid,
    .gallery-upload {
        grid-template-columns: 1fr
    }

    .gallery-box {
        height: 64px
    }

    .register-actions {
        flex-direction: column-reverse
    }

    .btn-cancel,
    .register-submit {
        width: 100%
    }

    .dealer-page {
        padding-bottom: 24px
    }

    .dealer-breadcrumb {
        padding: 12px 0;
        gap: 7px;
        overflow-x: auto;
        white-space: nowrap;
        font-size: 12px
    }

    .dealer-hero {
        margin-bottom: 18px
    }

    .dealer-hero h1 {
        font-size: 28px
    }

    .dealer-hero p {
        font-size: 13px;
        line-height: 1.6
    }

    .dealer-filter {
        grid-template-columns: 1fr;
        padding: 14px;
        gap: 10px;
        border-radius: 10px
    }

    .dealer-search,
    .dealer-select-filter,
    .dealer-filter button {
        height: 48px
    }

    .dealer-directory-grid {
        grid-template-columns: 1fr;
        gap: 16px
    }

    .dealer-directory-card {
        grid-template-columns: 1fr;
        padding: 14px;
        gap: 14px;
        border-radius: 12px
    }

    .dealer-thumb {
        width: 100%;
        height: 180px
    }

    .dealer-directory-body h2 {
        font-size: 16px
    }

    .dealer-card-actions {
        gap: 10px
    }

    .dealer-card-actions a {
        height: 44px;
        font-size: 13px
    }

    .dealer-pagination {
        flex-wrap: wrap
    }

    .shop-breadcrumb {
        overflow-x: auto;
        white-space: nowrap;
        padding: 12px 0;
        font-size: 12px
    }

    .dealer-shop-header {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 12px;
        border-radius: 8px
    }

    .shop-logo-card {
        min-height: 110px
    }

    .shop-profile h1 {
        font-size: 18px
    }

    .shop-rating-line {
        font-size: 12px
    }

    .shop-actions a {
        height: 40px
    }

    .shop-cover img {
        height: 180px
    }

    .shop-gallery {
        grid-template-columns: 1fr;
        gap: 8px
    }

    .shop-search-bar {
        flex-direction: column;
        align-items: stretch
    }

    .shop-search-bar label {
        flex: 0 0 auto
    }

    .shop-layout {
        grid-template-columns: 1fr
    }

    .shop-feature-strip,
    .shop-bottom-grid {
        grid-template-columns: 1fr
    }

    .shop-feature-strip {
        padding: 12px
    }

    .shop-slider {
        padding: 12px
    }

    .shop-slide-track {
        padding: 0 2px 2px
    }

    .shop-product-card,
    .shop-video-grid article {
        flex-basis: min(84vw, 300px)
    }

    .shop-slide-arrow {
        width: 32px;
        height: 32px
    }

    .shop-slide-arrow.left {
        left: 8px
    }

    .shop-slide-arrow.right {
        right: 8px
    }

    .shop-delivery-box div {
        grid-template-columns: 1fr
    }

    .shop-delivery-box img {
        height: 130px
    }

    .auth-panel {
        display: block;
        border-radius: 8px
    }

    .auth-media {
        min-height: 150px;
        height: 150px
    }

    .auth-card {
        padding: 22px 16px
    }

    .auth-head h1 {
        font-size: 21px
    }

    .form-row {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px
    }

    .auth-nav-menu {
        display: none
    }

    .back-to-top {
        right: 14px;
        bottom: 14px;
        width: 38px;
        height: 38px;
        font-size: 13px
    }
}

/* ===== EXTRA SMALL: dưới 380px ===== */
@media (max-width: 380px) {

    .nav-menu {
        width: 86vw;
        padding: 0 12px 16px
    }

    .nav-menu li a {
        min-height: 42px;
        padding: 10px 12px;
        font-size: 13px
    }

    .nav-menu li a i {
        width: 26px;
        height: 26px;
        font-size: 13px
    }

    .brand-list {
        grid-template-columns: repeat(2, 1fr)
    }

    .hero-content h1 {
        font-size: 18px
    }

    .hero-content .highlight {
        font-size: 24px
    }

    .dealer-stats {
        flex-direction: column;
        gap: 6px
    }
}