/* style.css - ธีม WebShop
   ใช้ฟอนต์ระบบ (system font) ที่รองรับภาษาไทยอยู่แล้ว ไม่พึ่ง CDN ภายนอก
   โครงสร้าง class ส่วน admin (app-shell/sidebar/card/table/badge/form) อ้างอิงจากระบบจัดเก็บเอกสารเดิม
   เพื่อความสอดคล้องกันของโค้ด ส่วน shop-* เป็นของใหม่สำหรับหน้าร้านค้า
*/

:root {
  --primary: #002ae0;
  --primary-light: #3858e6;
  --primary-dark: #001d9c;
  --sidebar-dark: #001264;
  --accent: #ffb400;
  --bg: #f2f5f9;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #1f2937;
  --muted: #6b7280;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --orange: #ea580c;
  --gray: #6b7280;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Leelawadee UI', 'Tahoma', 'Noto Sans Thai', 'Sarabun', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0 0 8px 0; color: var(--text); }
table { border-collapse: collapse; width: 100%; }
img { max-width: 100%; }

/* ---------- Alerts (flash messages) ---------- */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 13.5px; margin-bottom: 16px; }
.alert-success { background: #dcfce7; color: #15803d; }
.alert-error { background: #fee2e2; color: #b91c1c; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  background: #fff;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost { background: transparent; border: none; color: var(--muted); }
.btn-ghost:hover { color: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-blue { background: #e0edff; color: #1d4ed8; }
.badge-amber { background: #fef3c7; color: #b45309; }
.badge-orange { background: #ffedd5; color: #c2410c; }
.badge-green { background: #dcfce7; color: #15803d; }
.badge-red { background: #fee2e2; color: #b91c1c; }
.badge-gray { background: #f1f5f9; color: #475569; }

/* ---------- Cards / tables (ใช้ร่วมกันทั้งหน้าร้านและ admin) ---------- */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.table th { color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.3px; }
.table tbody tr:hover { background: #f8fafc; }
.empty-row { text-align: center; color: var(--muted); padding: 24px !important; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-span-2 { grid-column: span 2; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit; background: #fff;
}
.field-hint { font-size: 11.5px; color: var(--muted); margin-top: 4px; }
.form-actions { display: flex; gap: 10px; margin-top: 8px; }
.checkbox-row { display: flex; gap: 18px; align-items: center; font-size: 13.5px; }
.checkbox-row label { display: flex; align-items: center; gap: 6px; }

/* ---------- Page header ---------- */
.page-header { margin-bottom: 20px; }
.page-sub { color: var(--muted); font-size: 13.5px; margin: 0; }

/* ---------- Stat cards (admin dashboard) ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 24px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 18px; text-align: center; }
.stat-num { font-size: 26px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.stat-warning .stat-num { color: var(--warning); }
.stat-danger .stat-num { color: var(--danger); }

/* =====================================================================
   Admin app shell (sidebar + topbar) — ใช้กับ admin-*.php ทุกหน้า
   ===================================================================== */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; flex-shrink: 0; background: var(--sidebar-dark); color: #eaf1fb;
  display: flex; flex-direction: column; padding: 20px 0;
}
.brand { padding: 0 20px 18px; border-bottom: 1px solid rgba(255,255,255,0.12); margin-bottom: 12px; }
.brand-logo { display: block; max-width: 140px; height: auto; margin-bottom: 10px; background: #fff; border-radius: 8px; padding: 6px 8px; }
.brand-title { font-size: 19px; font-weight: 700; color: #fff; letter-spacing: 0.5px; }
.brand-sub { font-size: 11.5px; color: #b9cbe6; margin-top: 4px; }
.nav { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; flex: 1; }
.nav-link { padding: 10px 14px; border-radius: 8px; font-size: 14px; color: #d7e3f5; }
.nav-link:hover { background: rgba(255,255,255,0.08); }
.nav-link.active { background: var(--primary); color: #fff; font-weight: 600; }
.sidebar-footer { padding: 12px 20px 0; font-size: 11px; color: #8ca4c6; border-top: 1px solid rgba(255,255,255,0.1); margin-top: 10px; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 60px; background: #fff; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 24px;
}
.topbar-tenant { font-weight: 600; color: var(--text); }
.topbar-user { display: flex; align-items: center; gap: 10px; }
.user-name { font-size: 14px; font-weight: 600; }
.role-badge { background: #eef2ff; color: var(--primary); font-size: 12px; padding: 3px 9px; border-radius: 999px; }
.content { padding: 26px 30px; flex: 1; }

.admin-nav-toggle {
  display: none; background: transparent; border: 1px solid var(--border); border-radius: 8px;
  width: 38px; height: 38px; font-size: 18px; line-height: 1; cursor: pointer; align-items: center; justify-content: center;
  color: var(--text); flex-shrink: 0;
}
.admin-nav-toggle:hover { border-color: var(--primary); color: var(--primary); }
.sidebar-backdrop { display: none; }

@media (max-width: 900px) {
  .admin-nav-toggle { display: inline-flex; }
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 110;
    transform: translateX(-100%); transition: transform .22s ease; box-shadow: 6px 0 28px rgba(0,0,0,.25);
  }
  .sidebar.is-open { transform: translateX(0); }
  .sidebar-backdrop {
    display: block; position: fixed; inset: 0; background: rgba(15,23,42,.45); z-index: 100;
    opacity: 0; pointer-events: none; transition: opacity .2s ease;
  }
  .sidebar-backdrop.is-open { opacity: 1; pointer-events: auto; }
  .topbar { padding: 0 14px; gap: 10px; }
  .content { padding: 16px; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .content { padding: 12px; }
}

/* =====================================================================
   Storefront (shop-*) — index.php, products.php, product.php, cart.php, checkout.php ฯลฯ
   ===================================================================== */
.shop-body { background: var(--bg); }
.shop-header { background: var(--primary); color: #fff; position: sticky; top: 0; z-index: 20; }
.shop-header-top {
  max-width: 1200px; margin: 0 auto; padding: 12px 16px;
  display: flex; align-items: center; gap: 16px;
}
.shop-logo { display: flex; align-items: center; gap: 8px; font-size: 22px; font-weight: 700; color: #fff; white-space: nowrap; }
.shop-logo-img { height: 34px; width: auto; display: block; background: #fff; border-radius: 6px; padding: 3px 6px; }
.shop-search { flex: 1; display: flex; }
.search-input-wrap { position: relative; flex: 1; display: flex; }
.shop-search input {
  width: 100%; border: none; border-radius: 6px 0 0 6px; padding: 9px 12px; font-size: 14px; font-family: inherit;
}
.shop-search button {
  background: var(--primary-dark); color: #fff; border: none; border-radius: 0 6px 6px 0; padding: 0 16px; cursor: pointer; font-family: inherit;
}
.search-suggest-box {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0; background: #fff; color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.12);
  z-index: 40; max-height: 360px; overflow-y: auto; padding: 6px 0;
}
.search-suggest-group + .search-suggest-group { border-top: 1px solid var(--border); margin-top: 4px; padding-top: 4px; }
.search-suggest-label { font-size: 11px; color: var(--muted); font-weight: 600; padding: 6px 12px 2px; }
.search-suggest-item { display: block; padding: 7px 12px; font-size: 13.5px; color: var(--text); }
.search-suggest-item:hover { background: #f1f5f9; }
.shop-account-nav { display: flex; align-items: center; gap: 16px; font-size: 13.5px; white-space: nowrap; }
.cart-link { position: relative; }
.cart-count {
  position: absolute; top: -8px; right: -14px; background: #fff; color: var(--primary);
  border-radius: 999px; font-size: 11px; font-weight: 700; width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
}
.shop-header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.mobile-nav-toggle {
  display: none; background: rgba(255,255,255,0.15); border: none; color: #fff;
  font-size: 19px; line-height: 1; width: 38px; height: 38px; border-radius: 8px; cursor: pointer;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.mobile-nav-toggle:hover { background: rgba(255,255,255,0.28); }
.shop-header-nav {
  background: var(--primary-dark); overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.shop-header-nav > * {
  display: inline-block; max-width: 1200px; margin: 0 auto;
}
.shop-header-nav {
  display: flex; gap: 18px; max-width: 1200px; margin: 0 auto; padding: 8px 16px; font-size: 13.5px;
  white-space: nowrap;
}
.shop-main { max-width: 1200px; margin: 0 auto; padding: 20px 16px; min-height: 60vh; }

@media (max-width: 768px) {
  .shop-header-top { flex-wrap: wrap; gap: 10px 12px; padding: 10px 14px; }
  .shop-logo { order: 1; }
  .shop-header-actions { order: 2; margin-left: auto; }
  .shop-search { order: 3; flex-basis: 100%; }
  .mobile-nav-toggle { display: inline-flex; }
  .shop-account-nav {
    display: none; order: 4; flex-basis: 100%;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--primary-dark); border-radius: 10px; padding: 8px 14px; margin-top: 2px;
  }
  .shop-account-nav.is-open { display: flex; }
  .shop-account-nav a { padding: 9px 4px; width: 100%; white-space: normal; }
}

/* Banner */
.shop-banner {
  border-radius: 12px; background: linear-gradient(120deg, var(--primary), var(--primary-dark));
  color: #fff; padding: 40px; margin-bottom: 32px;
}
.shop-banner p.eyebrow { text-transform: uppercase; letter-spacing: 2px; font-size: 12.5px; opacity: 0.85; margin: 0; }
.shop-banner h1 { color: #fff; font-size: 30px; margin: 8px 0; }
.shop-banner .btn-primary { background: #fff; color: var(--primary); font-weight: 600; margin-top: 12px; }

/* Banner slider (แบนเนอร์หลายอันเลื่อนได้ ตั้งค่าได้ที่ admin-banners.php) */
.banner-slider { position: relative; border-radius: 12px; overflow: hidden; margin-bottom: 32px; }
.banner-track {
  display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  -ms-overflow-style: none; scrollbar-width: none;
}
.banner-track::-webkit-scrollbar { display: none; }
.banner-slide {
  flex: 0 0 100%; scroll-snap-align: start; min-height: 260px; background-size: cover; background-position: center;
  display: flex; align-items: flex-end; color: #fff; text-decoration: none;
}
.banner-slide-overlay {
  background: linear-gradient(0deg, rgba(0,0,0,.6), rgba(0,0,0,0) 70%); width: 100%; padding: 28px 32px;
}
.banner-slide-overlay h1 { color: #fff; font-size: 24px; margin: 0 0 6px; }
.banner-slide-overlay p { margin: 0; opacity: .9; font-size: 14px; }
.banner-dots { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); display: flex; gap: 6px; }
.banner-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.5); border: none; cursor: pointer; padding: 0; }
.banner-dot.active { background: #fff; }

/* Section heading */
.shop-section { margin-bottom: 36px; }
.shop-section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.shop-section-head h2 { font-size: 19px; }
.shop-section-head a { color: var(--primary); font-size: 13.5px; }

/* Category chips */
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.category-chip {
  background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px; text-align: center; font-size: 14px;
}
.category-chip:hover { border-color: var(--primary); color: var(--primary); }

/* Product grid + card */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; display: block;
}
.product-card:hover { box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
.product-thumb { position: relative; aspect-ratio: 1 / 1; background: #f1f5f9; overflow: hidden; }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-badge-discount {
  position: absolute; top: 8px; left: 8px; background: var(--primary); color: #fff;
  font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 4px;
}
.product-badge-soldout {
  position: absolute; inset: 0; background: rgba(0,0,0,0.5); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 600;
}
.product-info { padding: 10px 12px; }
.product-name { font-size: 13.5px; height: 38px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.product-price { color: var(--primary); font-weight: 700; margin-top: 6px; }
.product-price .was { color: var(--muted); font-size: 12px; text-decoration: line-through; font-weight: 400; margin-left: 6px; }
.product-sold { color: var(--muted); font-size: 11.5px; margin-top: 3px; }

/* Product listing page */
.listing-layout { display: grid; grid-template-columns: 220px 1fr; gap: 24px; align-items: start; }
.filter-block { margin-bottom: 20px; }
.filter-block h3 { font-size: 14px; margin-bottom: 8px; }
.filter-block ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; }
.filter-block a.active { color: var(--primary); font-weight: 600; }
.filter-price-form { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.filter-price-form input[type="number"] {
  width: 72px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; font-family: inherit;
}
.filter-price-form span { color: var(--muted); font-size: 13px; }
.filter-price-form button { flex-basis: 100%; margin-top: 4px; }
.listing-sort { display: flex; justify-content: flex-end; margin-bottom: 14px; }
.listing-sort select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 13.5px; }

/* แผงตัวกรอง "เพิ่มเติม" (ทุกกลุ่มยกเว้นหมวดหมู่) — เดิมใช้ <details>/<summary> ล้วนๆ แต่พบว่าบางเบราว์เซอร์มี rendering
   quirk: เนื้อหาที่ถูกซ่อนโดย native <details> แล้ว override ด้วย CSS !important จะไม่ถูก repaint ให้ถูกต้องตั้งแต่โหลดหน้าครั้งแรก
   (ยืนยันจาก DevTools: computed display ถูกต้องและมีขนาด/ตำแหน่งจริงบนหน้าจอ แต่ไม่ถูกวาดจนกว่าจะ resize หน้าต่างบังคับ reflow)
   จึงเปลี่ยนมาใช้ checkbox hack แทน (input[type=checkbox] ซ่อนไว้ + label ควบคุมด้วย :checked ~ selector) ยังคงเป็น CSS-only
   ไม่พึ่ง JavaScript เหมือนเดิม แต่เสถียรกว่าเพราะไม่ต้องพึ่งกลไกภายในของ <details> เลย */
.filter-extra-checkbox { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.filter-extra-toggle {
  display: none; cursor: pointer; font-size: 13.5px; font-weight: 600; color: var(--primary);
  padding: 10px 2px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  margin-bottom: 14px; list-style: none; user-select: none;
}
.filter-extra-toggle::before { content: '▸ '; }
.filter-extra-checkbox:checked ~ .filter-extra-toggle::before { content: '▾ '; }
.filter-extra-badge { display: inline-block; background: var(--primary); color: #fff; border-radius: 999px; font-size: 11px; font-weight: 700; padding: 1px 7px; margin-left: 6px; }

/* ค่าเริ่มต้น (ไม่ผ่าน media query ใดๆ เลย) = ปลอดภัยไว้ก่อนเสมอ: ถือว่าเป็นจอเดสก์ท็อป บังคับกางตัวกรองทุกกลุ่มให้เห็นครบ */
.filter-extra .filter-block { display: block !important; }

/* โหมดมือถือ/แท็บเล็ต: เจอสัญญาณอุปกรณ์สัมผัส/ไม่มี hover/จอแคบ อย่างใดอย่างหนึ่งก็พอ (เงื่อนไข OR ไม่ใช่ AND) */
@media (max-width: 1200px), (pointer: coarse), (hover: none) {
  .filter-extra-toggle { display: block; }
  .filter-extra-checkbox:not(:checked) ~ .filter-extra .filter-block { display: none !important; }
  .filter-extra-checkbox:checked ~ .filter-extra .filter-block { display: block !important; }
}

/* Product detail page */
.detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.gallery-main { position: relative; aspect-ratio: 1/1; background: #f1f5f9; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 8px; margin-top: 10px; }
.gallery-thumbs a { width: 64px; height: 64px; border-radius: 6px; overflow: hidden; border: 2px solid transparent; display: block; }
.gallery-thumbs a.active { border-color: var(--primary); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.video-wrap { position: relative; width: 100%; aspect-ratio: 16/9; margin-top: 10px; border-radius: 10px; overflow: hidden; background: #000; }
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Zoom รูปหลัก (magnifier แบบ hover) */
.gallery-zoom { cursor: zoom-in; position: relative; }
.gallery-zoom img { transition: transform .08s ease-out; }
.zoom-hint {
  position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,.55); color: #fff; font-size: 11px;
  padding: 4px 8px; border-radius: 12px; pointer-events: none; opacity: 0; transition: opacity .15s;
}
.gallery-zoom:hover .zoom-hint { opacity: 1; }

/* 360° viewer */
.gallery-360 {
  position: relative; aspect-ratio: 1/1; background: #f1f5f9; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border); cursor: grab; user-select: none;
}
.gallery-360 img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.gallery-360:active { cursor: grabbing; }
.view360-hint {
  position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,.55); color: #fff;
  font-size: 11px; padding: 4px 10px; border-radius: 12px; pointer-events: none; white-space: nowrap;
}

/* Tag chips */
.tag-chip-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.tag-chip {
  background: #f1f5f9; color: var(--muted); font-size: 12.5px; padding: 4px 10px; border-radius: 12px; text-decoration: none;
}
.tag-chip:hover { background: var(--primary); color: #fff; }

/* ตาราง Attribute แบบมีโครงสร้าง */
.attribute-table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.attribute-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.attribute-table td:first-child { color: var(--muted); width: 40%; }
.detail-meta { color: var(--muted); font-size: 12.5px; }
.detail-title { font-size: 22px; margin: 6px 0; }
.detail-rating { font-size: 13.5px; color: var(--muted); }
.detail-rating .stars { color: var(--accent); }
.price-box { background: #fafafa; border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin: 14px 0; }
.price-box .now { font-size: 28px; font-weight: 700; color: var(--primary); }
.price-box .was { color: var(--muted); text-decoration: line-through; margin-left: 8px; }
.price-box .member { font-size: 13px; color: var(--primary-dark); margin-top: 4px; }
.variant-group { margin-top: 14px; }
.variant-group .label { font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.variant-options { display: flex; flex-wrap: wrap; gap: 8px; }
.variant-option {
  position: relative; padding: 7px 14px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13.5px; cursor: pointer; background: #fff; display: inline-block;
}
.variant-option input { position: absolute; opacity: 0; }
.variant-option:has(input:checked) { border-color: var(--primary); background: #fff2ee; color: var(--primary-dark); }
.variant-option.disabled { opacity: 0.4; cursor: not-allowed; text-decoration: line-through; }
.qty-input { display: flex; align-items: center; border: 1px solid var(--border); border-radius: 8px; width: fit-content; margin-top: 12px; }
.qty-input button { width: 34px; height: 34px; border: none; background: #fff; cursor: pointer; font-size: 16px; }
.qty-input input { width: 46px; text-align: center; border: none; font-size: 14px; }
.detail-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.detail-actions .btn { flex: 1; min-width: 140px; text-align: center; padding: 12px; font-weight: 600; }

.tabs { display: flex; gap: 6px; margin: 28px 0 0; border-bottom: 1px solid var(--border); overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tab-link { padding: 10px 18px; font-size: 13.5px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; flex-shrink: 0; }
.tab-link.active { color: var(--primary); border-color: var(--primary); font-weight: 600; }
.tab-panel { padding: 20px 0; font-size: 13.5px; white-space: pre-line; }
.review-item { border-bottom: 1px dashed var(--border); padding: 10px 0; }
.review-item .stars { color: var(--accent); font-size: 12px; }

/* Cart page */
.cart-layout { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.cart-item { display: flex; gap: 14px; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 14px; margin-bottom: 12px; }
.cart-item img { width: 76px; height: 76px; border-radius: 6px; object-fit: cover; background: #f1f5f9; }
.cart-item-info { flex: 1; }
.cart-summary-row { display: flex; justify-content: space-between; font-size: 13.5px; margin-bottom: 6px; }
.cart-summary-total { display: flex; justify-content: space-between; font-weight: 700; font-size: 16px; border-top: 1px solid var(--border); padding-top: 10px; margin-top: 10px; }

.cart-promo-box { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.cart-promo-row { display: flex; flex-direction: column; gap: 6px; }
.cart-promo-label { font-size: 12.5px; font-weight: 600; color: var(--text); }
.cart-promo-label .field-hint { font-weight: 400; margin-top: 0; }
.cart-promo-form { display: flex; gap: 8px; align-items: center; }
.cart-promo-input { flex: 1; min-width: 0; border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; font-size: 13px; }
.cart-promo-applied { flex: 1; min-width: 0; font-size: 13px; color: var(--success); overflow-wrap: break-word; }
.cart-promo-error { color: var(--danger); font-size: 12px; margin: 0; }

/* Checkout page */
.checkout-layout { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.radio-row { display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 8px; font-size: 13.5px; cursor: pointer; }
.radio-row input { margin-right: 8px; }

/* Login / register */
.auth-wrap { max-width: 420px; margin: 40px auto; }
.auth-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 30px; }
.auth-logo { display: block; max-width: 200px; height: auto; margin: 0 auto 18px; }
.auth-card h1 { text-align: center; font-size: 20px; }
.auth-card .field { margin-bottom: 14px; }
.auth-card label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.auth-card input, .auth-card textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-family: inherit; font-size: 14px; }
.auth-card textarea { resize: vertical; }
.auth-note { font-size: 12px; color: var(--muted); text-align: center; margin-top: 14px; line-height: 1.6; }

/* Footer */
.shop-footer { background: var(--sidebar-dark); color: #cbd5e1; margin-top: 40px; }
.shop-footer-logo { height: 30px; width: auto; background: #fff; border-radius: 6px; padding: 4px 6px; margin-bottom: 10px; }
.shop-footer-grid { max-width: 1200px; margin: 0 auto; padding: 36px 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; font-size: 13px; }
.shop-footer-grid h3 { color: #fff; font-size: 14px; }
.shop-footer-copy { text-align: center; padding: 14px; font-size: 12px; border-top: 1px solid rgba(255,255,255,0.1); }

/* Responsive */
@media (max-width: 900px) {
  .detail-layout, .listing-layout, .cart-layout, .checkout-layout { grid-template-columns: 1fr; }
  .shop-footer-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-span-2 { grid-column: span 1; }

  /* หน้าแอดมินหลายหน้ามี layout สองคอลัมน์ (ฟอร์ม + ตาราง) กำหนดด้วย inline style="grid-template-columns: XXXpx 1fr"
     กฎนี้บังคับให้ยุบเหลือคอลัมน์เดียวบนจอแท็บเล็ต/มือถือแบบรวมศูนย์ ไม่ต้องแก้ทีละไฟล์ */
  [style*="grid-template-columns"] { grid-template-columns: 1fr !important; }
}

@media (max-width: 760px) {
  /* ตารางข้อมูล (รายการสินค้า/ออเดอร์/สต็อก ฯลฯ) เลื่อนดูแนวนอนได้แทนที่จะบีบจนอ่านไม่ออก */
  table.table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
  table.table thead, table.table tbody { display: table; width: 100%; }

  .card { padding: 16px; }
  .auth-wrap { max-width: 100%; margin: 20px auto; padding: 0 4px; }
  .auth-card { padding: 22px; }
  .detail-title { font-size: 19px; }
  .price-box .now { font-size: 24px; }
}

/* ป้องกัน iOS Safari ซูมอัตโนมัติตอนแตะช่องกรอกข้อมูล (เกิดเมื่อ font-size ช่องกรอก < 16px) */
@media (max-width: 600px) {
  input[type="text"], input[type="email"], input[type="password"], input[type="number"],
  input[type="tel"], input[type="date"], input[type="datetime-local"], input[type="search"],
  select, textarea {
    font-size: 16px;
  }
}