/* ============================================================
   TF Shop — Premium Responsive Stylesheet
   Mobile-first · Breakpoints: 576 / 768 / 992 / 1200
   ============================================================ */

:root {
    --color-bg: #f5f5f7;
    --color-surface: #ffffff;
    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-muted: #86868b;
    --color-border: #e5e5e7;
    --color-border-light: #f0f0f2;
    --color-primary: #0071e3;
    --color-primary-hover: #0077ed;
    --color-primary-dark: #005bb5;
    --color-primary-light: #e8f4fd;
    --color-danger: #ff3b30;
    --color-success: #34c759;
    --color-warning: #ff9500;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.06);
    --shadow: 0 2px 8px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.06);
    --shadow-lg: 0 4px 12px rgba(0,0,0,.06), 0 12px 40px rgba(0,0,0,.1);
    --shadow-xl: 0 8px 24px rgba(0,0,0,.08), 0 20px 60px rgba(0,0,0,.12);
    --header-h: 60px;
    --transition: .25s cubic-bezier(.4,0,.2,1);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
del { color: var(--color-muted); }
::selection { background: var(--color-primary); color: #fff; }

/* ---------- Container ---------- */
.container { width: 100%; padding: 0 16px; margin: 0 auto; }
@media (min-width: 768px) { .container { padding: 0 24px; } }
@media (min-width: 1200px) { .container { max-width: 1180px; } }

/* ---------- Header ---------- */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,.92);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-h);
    overflow: hidden;
}

.header-inner {
    height: var(--header-h);
    display: flex; align-items: center; gap: 12px;
    overflow: hidden;
}

.logo {
    font-size: 22px; font-weight: 700; color: var(--color-primary);
    white-space: nowrap; letter-spacing: -.5px;
    transition: opacity var(--transition);
}
.logo:hover { opacity: .8; color: var(--color-primary); }
.logo { flex-shrink: 1; min-width: 0; overflow: hidden; }
.logo .logo-img { height: 36px; max-width: 140px; width: auto; display: block; object-fit: contain; }
@media (min-width: 768px) {
    .logo .logo-img { max-width: 180px; }
}

/* Hamburger toggle (mobile only) */
.nav-toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; padding: 11px; background: none; border: none; cursor: pointer;
    border-radius: var(--radius-sm); transition: background var(--transition);
    flex-shrink: 0;
}
.nav-toggle:hover { background: var(--color-border-light); }
.nav-toggle span {
    display: block; width: 100%; height: 2px; background: var(--color-text);
    border-radius: 2px; transition: transform .3s, opacity .3s;
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Desktop nav (hidden on mobile) */
.desktop-nav { display: none; }

/* Mobile drawer */
.mobile-drawer {
    position: fixed; top: var(--header-h); left: 0; bottom: 0;
    width: 280px; max-width: 80vw;
    background: var(--color-surface);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
    padding: 24px; overflow-y: auto;
    box-shadow: 4px 0 24px rgba(0,0,0,.12);
    border-top: 1px solid var(--color-border);
    display: flex; flex-direction: column;
}
body.nav-open .mobile-drawer { transform: translateX(0); }
body.nav-open { overflow: hidden; }

/* Drawer nav links */
.drawer-nav a {
    display: block; padding: 16px 0;
    border-bottom: 1px solid var(--color-border-light);
    font-weight: 500; font-size: 16px; color: var(--color-text);
    transition: color var(--transition), padding-left var(--transition);
}
.drawer-nav a:last-child { border-bottom: none; }
.drawer-nav a:hover { color: var(--color-primary); padding-left: 8px; }

/* Drawer footer controls */
.drawer-divider { height: 1px; background: var(--color-border); margin: 16px 0; }
.drawer-switches { display: flex; gap: 10px; margin-bottom: 12px; }
.drawer-select {
    flex: 1; border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
    padding: 10px 12px; font-size: 14px; background: var(--color-bg);
    cursor: pointer; color: var(--color-text);
    appearance: none; -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2386868b'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 10px center;
}
.drawer-auth { display: flex; flex-direction: column; gap: 4px; }
.drawer-auth a {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 14px; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 500; color: var(--color-text);
    transition: background var(--transition);
}
.drawer-auth a:hover { background: var(--color-border-light); color: var(--color-primary); }

/* Drawer backdrop */
.drawer-backdrop {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    z-index: 199; background: rgba(0,0,0,.4);
    opacity: 0; pointer-events: none; transition: opacity .3s;
}
body.nav-open .drawer-backdrop { opacity: 1; pointer-events: auto; }

/* Desktop: show desktop-nav, hide drawer elements */
@media (min-width: 992px) {
    .nav-toggle { display: none; }
    .mobile-drawer { display: none; }
    .drawer-backdrop { display: none; }
    .desktop-nav {
        display: flex; gap: 20px; align-items: center;
        flex: 1; min-width: 0;
    }
    .desktop-nav a {
        font-size: 15px; font-weight: 500; white-space: nowrap;
        position: relative; color: var(--color-text);
        transition: color var(--transition);
    }
    .desktop-nav a::after {
        content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
        height: 2px; background: var(--color-primary); transform: scaleX(0);
        transition: transform var(--transition);
    }
    .desktop-nav a:hover { color: var(--color-primary); }
    .desktop-nav a:hover::after { transform: scaleX(1); }
}

/* Header right actions */
.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; flex-shrink: 0; }
.header-actions a {
    font-size: 14px; white-space: nowrap; padding: 6px 10px;
    border-radius: var(--radius-sm); transition: all var(--transition);
}
.header-actions a:hover { background: var(--color-border-light); color: var(--color-primary); }

.cart-link { position: relative; font-weight: 500; }
.cart-badge {
    position: absolute; top: -8px; right: -12px;
    background: var(--color-danger); color: #fff;
    font-size: 11px; min-width: 18px; height: 18px; line-height: 18px;
    text-align: center; border-radius: 9px; padding: 0 4px;
    font-weight: 600; animation: badgePop .3s ease;
}
@keyframes badgePop { from { transform: scale(0); } to { transform: scale(1); } }
@keyframes badgeBounce {
    0% { transform: scale(1); }
    30% { transform: scale(1.4); }
    50% { transform: scale(0.9); }
    70% { transform: scale(1.15); }
    100% { transform: scale(1); }
}
.cart-badge.badge-bounce { animation: badgeBounce .5s ease; }

/* Search: always-visible input */
.search-form {
    display: flex; align-items: center; flex: 1; min-width: 0;
}
.search-form input {
    width: 100%; min-width: 48px; max-width: 110px;
    padding: 7px 14px; border: 1.5px solid var(--color-border);
    border-radius: 20px; font-size: 14px; outline: none;
    background: var(--color-bg);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.search-form input:focus {
    border-color: var(--color-primary); background: var(--color-surface);
    box-shadow: 0 0 0 3px rgba(0,113,227,.1);
}
@media (min-width: 768px) {
    .search-form { flex: 0 1 auto; }
    .search-form input { max-width: 220px; }
}

/* Language / currency switches */
.lang-switch, .currency-switch { display: inline-flex; }
.lang-switch select, .currency-switch select {
    border: 1px solid var(--color-border); border-radius: 6px;
    background: var(--color-surface);
    padding: 4px 22px 4px 6px; font-size: 12px;
    cursor: pointer; color: var(--color-text);
    transition: border-color var(--transition);
    appearance: none; -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2386868b'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 6px center;
    max-width: 100px;
}
@media (min-width: 768px) {
    .lang-switch select, .currency-switch select {
        padding: 5px 24px 5px 8px; font-size: 13px; max-width: 120px;
    }
}
.lang-switch select:hover, .currency-switch select:hover { border-color: var(--color-primary); }

/* Mobile: hide lang/currency/auth in header */
.header-hide-mobile { display: none; }

/* Cart responsive */
.cart-icon { font-size: 18px; }
.cart-text { font-size: 14px; }
@media (max-width: 991px) {
    .cart-text { display: none; }
    .cart-link { padding: 6px; }
}
@media (min-width: 992px) {
    .header-hide-mobile { display: initial; }
    .cart-text { display: inline; }
}

/* ---------- Main ---------- */
.site-main { min-height: calc(100vh - var(--header-h) - 80px); padding: 20px 0 60px; }

/* ---------- Hero ---------- */
.hero { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 28px; box-shadow: var(--shadow); }
.hero-slider {
    display: flex; overflow-x: auto; scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.hero-slider::-webkit-scrollbar { display: none; }
.hero-slide { flex: 0 0 100%; scroll-snap-align: start; position: relative; }
.hero-slide img { width: 100%; aspect-ratio: 16/7; object-fit: cover; }
@media (min-width: 768px) { .hero-slide img { aspect-ratio: 21/7; } }

.hero-caption {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: 32px 24px 20px;
    background: linear-gradient(to top, rgba(0,0,0,.6), rgba(0,0,0,0));
}
.hero-caption-text {
    color: #fff; font-size: 18px; font-weight: 700;
    text-shadow: 0 1px 4px rgba(0,0,0,.4); letter-spacing: -.2px;
}
@media (min-width: 768px) {
    .hero-caption { padding: 48px 40px 28px; }
    .hero-caption-text { font-size: 26px; }
}

/* ---------- Sections ---------- */
.section { margin-bottom: 40px; }
.section-title {
    font-size: 22px; font-weight: 700; margin-bottom: 20px;
    letter-spacing: -.3px; position: relative; display: inline-block;
}
.section-title::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 40px; height: 3px; background: var(--color-primary); border-radius: 2px;
}

.page-title { font-size: 24px; font-weight: 700; margin-bottom: 20px; letter-spacing: -.3px; }

/* ---------- Product Grid ---------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (min-width: 576px) { .product-grid { gap: 16px; } }
@media (min-width: 768px) { .product-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
@media (min-width: 992px) { .product-grid { grid-template-columns: repeat(4, 1fr); } }

.product-card {
    background: var(--color-surface); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.product-card-img { position: relative; overflow: hidden; }
.product-card-img img {
    width: 100%; aspect-ratio: 1/1; object-fit: cover;
    transition: transform .4s ease;
}
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 12px 14px 16px; }
.product-card-name {
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden; font-size: 14px; min-height: 40px; line-height: 1.4;
    font-weight: 500;
}
.product-card-price { margin-top: 8px; display: flex; align-items: baseline; gap: 8px; }
.price { color: var(--color-primary); font-weight: 700; font-size: 17px; letter-spacing: -.3px; }
.price-old { font-size: 13px; }

/* ---------- Category Grid ---------- */
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (min-width: 576px) { .category-grid { gap: 16px; } }
@media (min-width: 768px) { .category-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; } }

.category-card {
    background: var(--color-surface); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow-sm);
    display: block; transition: all var(--transition);
}
.category-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.category-card-img img { width: 100%; max-width: 400px; margin: 0 auto; aspect-ratio: 16/9; object-fit: cover; }
.category-card-body { padding: 12px 14px; text-align: center; }
.category-card-body span { font-size: 14px; font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-surface); border-top: 1px solid var(--color-border);
    padding: 24px 0; color: var(--color-muted); font-size: 13px; text-align: center;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 28px; border: none; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 600; cursor: pointer; text-align: center;
    min-height: 46px; line-height: 1.2;
    transition: all var(--transition); position: relative; overflow: hidden;
}
.btn::after {
    content: ''; position: absolute; inset: 0;
    background: rgba(255,255,255,.15); opacity: 0; transition: opacity .2s;
}
.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(.98); }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; }
.btn-block { width: 100%; }
.btn-outline { background: none; border: 1.5px solid var(--color-border); color: var(--color-text); }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-sm { padding: 8px 16px; font-size: 13px; min-height: auto; }
.btn-sm::after { display: none; }

/* ---------- Forms ---------- */
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--color-text-secondary); }
.form-field input, .form-field select, .form-field textarea {
    width: 100%; padding: 12px 14px; border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm); font-size: 15px; font-family: inherit;
    outline: none; background: var(--color-surface);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0,113,227,.08);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 575px) { .form-row { grid-template-columns: 1fr; } }

/* ---------- Captcha ---------- */
.captcha-row { display: flex; gap: 10px; align-items: center; }
.captcha-row input { flex: 1 1 auto; min-width: 0; }
.captcha-img { height: 46px; width: auto; flex: 0 0 auto; cursor: pointer; background: #fff; border: 1.5px solid var(--color-border); border-radius: var(--radius-sm); }

/* ---------- Alerts ---------- */
.alert { padding: 14px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 16px; }
.alert-error { background: #fef2f2; color: var(--color-danger); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--color-success); border: 1px solid #bbf7d0; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
    display: flex; align-items: center; gap: 8px; font-size: 13px;
    color: var(--color-muted); margin-bottom: 20px; flex-wrap: wrap;
}
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span[aria-current] { color: var(--color-text); }

/* ---------- Chips / Toolbar ---------- */
.cat-chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 8px; margin-bottom: 16px; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.cat-chips::-webkit-scrollbar { display: none; }
.chip {
    background: var(--color-surface); border: 1.5px solid var(--color-border);
    border-radius: 20px; padding: 8px 18px; font-size: 13px; white-space: nowrap;
    font-weight: 500; transition: all var(--transition);
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }

.toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 10px; }
.sort-select {
    border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    padding: 8px 12px; font-size: 14px; background: var(--color-surface);
    cursor: pointer; transition: border-color var(--transition);
}
.sort-select:hover { border-color: var(--color-primary); }

/* ---------- Pagination ---------- */
.pagination { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 28px; }
.page-link {
    background: var(--color-surface); border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm); padding: 9px 20px; font-size: 14px;
    font-weight: 500; transition: all var(--transition);
}
.page-link:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }
.page-info { color: var(--color-muted); font-size: 14px; }

.empty-state { text-align: center; padding: 80px 20px; color: var(--color-muted); }
.empty-state p { font-size: 16px; margin-bottom: 16px; }

/* ---------- Product Detail ---------- */
.detail-layout { display: grid; grid-template-columns: 1fr; gap: 28px; }
@media (min-width: 768px) { .detail-layout { grid-template-columns: 1fr 1fr; gap: 48px; } }

.gallery-main {
    border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface);
    box-shadow: var(--shadow);
}
.gallery-main img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; scrollbar-width: none; }
.gallery-thumbs::-webkit-scrollbar { display: none; }
.gallery-thumbs img {
    width: 68px; height: 68px; object-fit: cover; border-radius: var(--radius-sm);
    border: 2.5px solid transparent; cursor: pointer; flex-shrink: 0;
    transition: border-color var(--transition), opacity var(--transition);
    opacity: .7;
}
.gallery-thumbs img:hover { border-color: var(--color-primary); opacity: 1; }

.detail-name { font-size: 24px; font-weight: 700; line-height: 1.3; margin-bottom: 10px; letter-spacing: -.3px; }
.detail-subtitle { color: var(--color-text-secondary); margin-bottom: 14px; font-size: 15px; }
.detail-price { display: flex; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.detail-price .price { font-size: 28px; letter-spacing: -.5px; }
.detail-meta { color: var(--color-muted); font-size: 13px; margin-bottom: 24px; }

/* SKU Selector */
.sku-selector { margin-bottom: 20px; }
.sku-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 10px; color: var(--color-text-secondary); }
.sku-options { display: flex; flex-wrap: wrap; gap: 8px; }
.sku-opt {
    border: 1.5px solid var(--color-border); background: var(--color-surface);
    border-radius: var(--radius-sm); padding: 10px 16px; font-size: 14px;
    cursor: pointer; min-height: 42px; font-weight: 500;
    transition: all var(--transition);
}
.sku-opt:hover { border-color: var(--color-primary); color: var(--color-primary); }
.sku-opt.active {
    border-color: var(--color-primary); color: #fff;
    background: var(--color-primary); box-shadow: 0 2px 8px rgba(0,113,227,.25);
}
.sku-opt:disabled { opacity: .4; cursor: not-allowed; }
.sku-dim { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 14px; width: 100%; }
.sku-dim-label { font-weight: 600; font-size: 14px; min-width: 60px; color: var(--color-text-secondary); }

/* Quantity */
.qty-row { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; font-size: 14px; }
.qty-control {
    display: inline-flex; align-items: center;
    border: 1.5px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden;
}
.qty-control button {
    width: 42px; height: 42px; border: none; background: var(--color-bg);
    font-size: 18px; cursor: pointer; transition: background var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.qty-control button:hover { background: var(--color-border); }
.qty-control input {
    width: 52px; height: 42px; border: none; border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border); text-align: center;
    font-size: 15px; font-weight: 600; outline: none; background: var(--color-surface);
}

.detail-actions { margin-bottom: 28px; }
.detail-actions .btn { width: 100%; }
@media (min-width: 576px) { .detail-actions .btn { width: auto; min-width: 240px; } }

.detail-desc { border-top: 1px solid var(--color-border); padding-top: 20px; }
.detail-desc h3 { font-size: 17px; margin-bottom: 10px; font-weight: 600; }
.detail-desc p { color: var(--color-text-secondary); font-size: 14px; white-space: pre-line; line-height: 1.7; }

/* ---------- Cart ---------- */
.cart-layout { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 992px) { .cart-layout { grid-template-columns: 1fr 340px; align-items: start; } }

.cart-row {
    display: flex; gap: 16px; background: var(--color-surface);
    border-radius: var(--radius); padding: 16px; margin-bottom: 12px;
    box-shadow: var(--shadow-sm); transition: box-shadow var(--transition);
}
.cart-row:hover { box-shadow: var(--shadow); }
.cart-row-img img { width: 88px; height: 88px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.cart-row-info { flex: 1; min-width: 0; }
.cart-row-name { font-weight: 600; font-size: 15px; display: block; margin-bottom: 4px; }
.cart-row-spec { display: flex; gap: 8px; flex-wrap: wrap; color: var(--color-muted); font-size: 12px; margin-bottom: 6px; }
.cart-row-spec span { background: var(--color-bg); padding: 2px 8px; border-radius: 4px; }
.cart-row-price { font-weight: 700; color: var(--color-primary); margin-bottom: 10px; font-size: 16px; }
.cart-row-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.btn-link { background: none; border: none; color: var(--color-danger); font-size: 13px; cursor: pointer; padding: 8px 0; transition: opacity var(--transition); }
.btn-link:hover { opacity: .7; }

.cart-summary {
    background: var(--color-surface); border-radius: var(--radius-lg);
    padding: 24px; box-shadow: var(--shadow); position: sticky;
    top: calc(var(--header-h) + 16px);
}
.summary-line { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: 15px; }
.summary-line.total {
    font-weight: 700; font-size: 18px; border-top: 1.5px solid var(--color-border);
    padding-top: 14px; margin-top: 4px;
}

/* ---------- Auth ---------- */
.auth-card {
    max-width: 440px; margin: 32px auto; background: var(--color-surface);
    border-radius: var(--radius-lg); padding: 36px 32px; box-shadow: var(--shadow-lg);
}
.auth-title { font-size: 24px; font-weight: 700; text-align: center; margin-bottom: 24px; letter-spacing: -.3px; }

/* ---------- Member ---------- */
.member-layout { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) { .member-layout { grid-template-columns: 220px 1fr; } }
.member-nav { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.member-nav::-webkit-scrollbar { display: none; }
@media (min-width: 768px) { .member-nav { flex-direction: column; } }
.member-nav a {
    padding: 12px 18px; border-radius: var(--radius-sm); font-size: 14px;
    white-space: nowrap; font-weight: 500;
    transition: all var(--transition);
}
.member-nav a:hover { background: var(--color-border-light); color: var(--color-primary); }
.member-nav a.active { background: var(--color-primary); color: #fff; }
.member-content { min-width: 0; }

.panel {
    background: var(--color-surface); border-radius: var(--radius);
    padding: 24px; box-shadow: var(--shadow-sm); margin-bottom: 16px;
}
.panel h2 { font-size: 17px; margin-bottom: 14px; font-weight: 600; }
.panel h3 { font-size: 15px; margin-bottom: 12px; font-weight: 600; }
.panel p { margin-bottom: 8px; }

.address-card {
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
    padding: 14px 16px; margin-bottom: 10px; font-size: 14px;
    transition: border-color var(--transition);
}
.address-card:hover { border-color: var(--color-primary); }
.addr-form { max-width: 520px; }

/* ---------- Coupon ---------- */
.coupon-list { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 768px) { .coupon-list { grid-template-columns: 1fr 1fr; } }
.coupon-card {
    display: flex; align-items: center; gap: 16px; background: var(--color-surface);
    border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-primary);
    transition: transform var(--transition);
}
.coupon-card:hover { transform: translateY(-2px); }
.coupon-card.used, .coupon-card.expired { opacity: .5; border-left-color: var(--color-muted); }
.coupon-card.used:hover, .coupon-card.expired:hover { transform: none; }
.coupon-value { font-size: 26px; font-weight: 700; color: var(--color-primary); min-width: 80px; }
.coupon-info { flex: 1; }
.coupon-name { font-weight: 600; font-size: 15px; }
.coupon-code { color: var(--color-muted); font-size: 13px; font-family: monospace; }
.coupon-dates { color: var(--color-muted); font-size: 12px; }
.coupon-status { font-size: 13px; color: var(--color-success); font-weight: 500; }

/* ---------- Checkout ---------- */
.checkout-layout { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 992px) { .checkout-layout { grid-template-columns: 1fr 360px; align-items: start; } }
.checkout-summary {
    background: var(--color-surface); border-radius: var(--radius-lg);
    padding: 24px; box-shadow: var(--shadow); position: sticky;
    top: calc(var(--header-h) + 16px);
}
.checkout-summary h2 { font-size: 17px; margin-bottom: 16px; font-weight: 600; }

.address-select { margin-bottom: 16px; }
.address-option, .payment-option {
    display: flex; gap: 12px; align-items: flex-start;
    border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
    padding: 14px; margin-bottom: 10px; cursor: pointer; font-size: 14px;
    transition: all var(--transition);
}
.address-option:hover, .payment-option:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.address-option input, .payment-option input { margin-top: 3px; }
.payment-option span { font-weight: 500; }

/* ---------- Payment Result ---------- */
.result-card {
    max-width: 500px; margin: 48px auto; background: var(--color-surface);
    border-radius: var(--radius-lg); padding: 40px 32px; text-align: center;
    box-shadow: var(--shadow-lg);
}
.result-card h1 { font-size: 24px; margin-bottom: 12px; }

/* ---------- Orders ---------- */
.order-filter { display: flex; gap: 8px; overflow-x: auto; margin-bottom: 20px; padding-bottom: 4px; scrollbar-width: none; }
.order-filter::-webkit-scrollbar { display: none; }
.order-filter a {
    padding: 9px 20px; border-radius: 20px;
    border: 1.5px solid var(--color-border); background: var(--color-surface);
    font-size: 13px; white-space: nowrap; font-weight: 500;
    transition: all var(--transition);
}
.order-filter a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.order-filter a.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.order-card {
    background: var(--color-surface); border-radius: var(--radius);
    box-shadow: var(--shadow-sm); margin-bottom: 12px; overflow: hidden;
    transition: box-shadow var(--transition);
}
.order-card:hover { box-shadow: var(--shadow); }
.order-card-head {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 18px; border-bottom: 1px solid var(--color-border-light); font-size: 14px;
}
.order-card-body {
    display: flex; align-items: center; gap: 16px; padding: 14px 18px;
    font-size: 14px; flex-wrap: wrap;
}
.order-card-body .btn { margin-left: auto; }

/* Order status badges */
.order-status { font-size: 12px; padding: 5px 12px; border-radius: 20px; font-weight: 600; letter-spacing: .2px; }
.status-0 { background: #fef3c7; color: #b45309; }
.status-1 { background: #dbeafe; color: #1d4ed8; }
.status-2 { background: #ede9fe; color: #6d28d9; }
.status-3 { background: #e0e7ff; color: #4338ca; }
.status-4 { background: #dcfce7; color: #15803d; }
.status-5, .status-7 { background: #f3f4f6; color: #6b7280; }
.status-6 { background: #fee2e2; color: #b91c1c; }

.order-detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.summary-block { max-width: 380px; margin-left: auto; margin-top: 12px; }

/* Timeline */
.timeline { padding-left: 20px; border-left: 2px solid var(--color-border); }
.timeline-item { position: relative; padding: 0 0 24px 24px; }
.timeline-dot {
    position: absolute; left: -7px; top: 4px;
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light);
}
.timeline-time { font-size: 12px; color: var(--color-muted); }
.timeline-text { font-size: 14px; font-weight: 500; }
.timeline-loc { font-size: 12px; color: var(--color-text-secondary); }

/* ---------- Customer Service FAB ---------- */
.kefu-fab {
    position: fixed; right: 20px; bottom: 28px; z-index: 200;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 2px; width: 58px; height: 58px; border: none; border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff; cursor: pointer;
    box-shadow: 0 4px 16px rgba(0,113,227,.35);
    transition: transform var(--transition), box-shadow var(--transition);
}
.kefu-fab:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(0,113,227,.45); }
.kefu-fab-icon { font-size: 22px; line-height: 1; }
.kefu-fab-text { font-size: 10px; line-height: 1; font-weight: 500; }

.kefu-modal {
    position: fixed; inset: 0; z-index: 300; display: none;
    background: rgba(0,0,0,.5); align-items: center; justify-content: center;
    padding: 20px; backdrop-filter: blur(4px);
}
.kefu-modal.open { display: flex; }
.kefu-modal-box {
    background: var(--color-surface); border-radius: var(--radius-lg); width: 100%;
    max-width: 340px; overflow: hidden; box-shadow: var(--shadow-xl);
    animation: modalPop .3s ease;
}
@keyframes modalPop { from { transform: scale(.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.kefu-modal-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px; border-bottom: 1px solid var(--color-border);
    font-weight: 600; font-size: 16px;
}
.kefu-close { border: none; background: none; font-size: 24px; cursor: pointer; color: var(--color-muted); line-height: 1; padding: 0 4px; }
.kefu-modal-body { padding: 24px; text-align: center; }
.kefu-img { max-width: 100%; border-radius: var(--radius-sm); margin: 0 auto; }
.kefu-link-only { display: block; text-decoration: none; color: var(--color-primary); font-weight: 600; padding: 12px; }
.kefu-tip { margin-top: 14px; font-size: 13px; color: var(--color-muted); }
.kefu-phone-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; margin-top: 16px; padding: 12px 20px; border-radius: 999px; background: var(--color-primary); color: #fff; font-weight: 600; font-size: 14px; text-decoration: none; transition: opacity var(--transition); }
.kefu-phone-btn:hover { opacity: .85; color: #fff; }
.kefu-phone-icon { display: inline-flex; align-items: center; color: #fff; line-height: 1; }
.kefu-phone-icon svg { display: block; }

/* ---------- Toast ---------- */
.toast-container {
    position: fixed; top: calc(var(--header-h) + 12px); right: 16px;
    z-index: 500; display: flex; flex-direction: column; gap: 8px;
}
.toast {
    background: var(--color-surface); border-radius: var(--radius-sm);
    padding: 14px 20px; box-shadow: var(--shadow-lg);
    font-size: 14px; font-weight: 500;
    display: flex; align-items: center; gap: 10px;
    animation: toastIn .3s ease;
    max-width: 320px;
}
.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-danger); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(20px); } }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--color-muted); }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; }