/* ==========================================================================
   Aura Retail — Web Storefront · styles.css
   Vanilla CSS · Material 3-ish design system (matches Android app family)

   References: Module_Web_UI_Spec.md §2 (tokens) + Module_Android_UI_Spec
   Loading order: tokens -> base -> utilities -> components -> responsive.
   All colors use var(--md-sys-color-*) — never hardcoded (dark theme safe).
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS
   Driven by JS: <html data-theme="dark"> and <html data-palette="green|...">
   ========================================================================== */

:root {
  /* -- Material 3 core (Android Light Color.kt: violet) */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #381E72;
  --md-sys-color-primary-dim: #57408F;          /* hover / active tint */

  --md-sys-color-secondary: #5C5C5C;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E0E0E0;
  --md-sys-color-on-secondary-container: #1E1E1E;

  --md-sys-color-tertiary: #616161;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #EEEEEE;
  --md-sys-color-on-tertiary-container: #1F1F1F;

  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410002;

  --md-sys-color-background: #FAFAFA;
  --md-sys-color-surface: #FAFAFA;
  --md-sys-color-on-surface: #121212;
  --md-sys-color-surface-variant: #E0E0E0;
  --md-sys-color-on-surface-variant: #424242;

  --md-sys-color-outline: #757575;
  --md-sys-color-outline-variant: #C4C4C4;

  /* -- Store nav backgrounds (color-mix free — old browsers safe) */
  --store-nav-bg: rgba(250, 250, 250, .92);
  --store-nav-bg-solid: rgba(250, 250, 250, .98);

  /* -- Semantic extras (stock, stars, scrim) */
  --color-success: #2E7D3F;
  --color-success-container: #DCF2E0;
  --color-on-success-container: #0A3D16;
  --color-on-success: #1A5C2B;
  --color-warning: #B26A00;
  --color-warning-container: #FCE7C3;
  --color-star: #FFB300;
  --md-sys-color-scrim: rgba(0, 0, 0, 0.45);

  /* -- Elevation shadows */
  --md-sys-shadow-sm: 0 1px 2px rgba(18, 18, 18, 0.10);
  --md-sys-shadow: 0 2px 6px rgba(18, 18, 18, 0.12);
  --md-sys-shadow-lg: 0 8px 24px rgba(18, 18, 18, 0.18);

  /* -- Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 28px;
  --radius-pill: 999px;

  /* -- Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 32px;
  --sp-8: 40px;
  --sp-9: 48px;

  /* -- Motion */
  --md-sys-motion-duration: 150ms;
  --md-sys-motion-ease: cubic-bezier(0.4, 0, 0.2, 1);

  /* -- Type */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --line-height-base: 1.55;
}

/* -- Dark theme --------------------------------------------------------- */
[data-theme="dark"] {
  --md-sys-color-primary: #D0BCFF;
  --md-sys-color-on-primary: #381E72;
  --md-sys-color-primary-container: #4F378B;
  --md-sys-color-on-primary-container: #EADDFF;
  --md-sys-color-primary-dim: #B9A4F0;

  --md-sys-color-secondary: #BDBDBD;
  --md-sys-color-on-secondary: #1E1E1E;
  --md-sys-color-secondary-container: #424242;
  --md-sys-color-on-secondary-container: #E0E0E0;

  --md-sys-color-tertiary: #9E9E9E;
  --md-sys-color-on-tertiary: #1E1E1E;
  --md-sys-color-tertiary-container: #616161;
  --md-sys-color-on-tertiary-container: #EEEEEE;

  --md-sys-color-error: #F2B8B5;
  --md-sys-color-on-error: #3B0400;
  --md-sys-color-error-container: #8C1D18;
  --md-sys-color-on-error-container: #FFDAD6;

  --md-sys-color-background: #121212;
  --md-sys-color-surface: #1E1E1E;
  --md-sys-color-on-surface: #E6E1E5;
  --md-sys-color-surface-variant: #2B2B2B;
  --md-sys-color-on-surface-variant: #BDBDBD;

  --md-sys-color-outline: #938F99;
  --md-sys-color-outline-variant: #49454F;

  --store-nav-bg: rgba(30, 30, 30, .92);
  --store-nav-bg-solid: rgba(30, 30, 30, .98);

  --color-success: #7DCF8C;
  --color-success-container: #1C3320;
  --color-on-success: #B9EDC3;
  --color-warning: #F5B95B;
  --color-warning-container: #3A2F14;
  --color-star: #FFB300;

  --md-sys-color-scrim: rgba(0, 0, 0, 0.65);
  --md-sys-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.30);
  --md-sys-shadow: 0 2px 6px rgba(0, 0, 0, 0.45);
  --md-sys-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.60);
}

/* -- Color palettes (green / blue / orange) ----------------------------- */
[data-palette="green"] {
  --md-sys-color-primary: #4A7C59;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #D6E8D9;
  --md-sys-color-on-primary-container: #0E3A20;
  --md-sys-color-primary-dim: #3E6B4C;
}
[data-palette="green"][data-theme="dark"] {
  --md-sys-color-primary: #7DCF8C;
  --md-sys-color-on-primary: #00391A;
  --md-sys-color-primary-container: #1C5230;
  --md-sys-color-on-primary-container: #C9EFd2;
  --md-sys-color-primary-dim: #63B872;
}

[data-palette="blue"] {
  --md-sys-color-primary: #2E6DA4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #D9E9F6;
  --md-sys-color-on-primary-container: #0C3353;
  --md-sys-color-primary-dim: #23587F;
}
[data-palette="blue"][data-theme="dark"] {
  --md-sys-color-primary: #9ECAFF;
  --md-sys-color-on-primary: #063163;
  --md-sys-color-primary-container: #1E4A72;
  --md-sys-color-on-primary-container: #CFE4FF;
  --md-sys-color-primary-dim: #8AB8F2;
}

[data-palette="orange"] {
  --md-sys-color-primary: #D17A22;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #FBE3C8;
  --md-sys-color-on-primary-container: #5A3308;
  --md-sys-color-primary-dim: #B8661A;
}
[data-palette="orange"][data-theme="dark"] {
  --md-sys-color-primary: #FFB577;
  --md-sys-color-on-primary: #5A2D00;
  --md-sys-color-primary-container: #9A4F10;
  --md-sys-color-on-primary-container: #FFDCC2;
  --md-sys-color-primary-dim: #EDA257;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--md-sys-color-on-surface);
  background-color: var(--md-sys-color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--sp-3);
  line-height: 1.25;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
}
h1 { font-size: clamp(1.75rem, 4vw, 2.375rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.875rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5, h6 { font-size: 1rem; }

p { margin: 0 0 var(--sp-4); }

a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
  transition: color var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
a:hover { color: var(--md-sys-color-primary-dim); }

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

ul, ol { padding-left: var(--sp-5); }

hr {
  border: 0;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  margin: var(--sp-6) 0;
}

main.page {
  min-height: 60vh;
  padding-bottom: var(--sp-9);
}

::selection {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

:focus-visible {
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   3. UTILITIES
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: var(--sp-5);
}

.muted {
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--font-size-sm);
}

.flex { display: flex; align-items: center; gap: var(--sp-3); }
.flex-col { display: flex; flex-direction: column; gap: var(--sp-3); }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }
.flex-center { display: flex; align-items: center; justify-content: center; gap: var(--sp-3); }
.flex-wrap { flex-wrap: wrap; }
.flex-grow { flex: 1 1 auto; }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--sp-6);
}

.center { text-align: center; }
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* Spacing helpers */
.mt-1 { margin-top: var(--sp-1); } .mt-2 { margin-top: var(--sp-2); }
.mt-3 { margin-top: var(--sp-3); } .mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); } .mt-6 { margin-top: var(--sp-6); }
.mt-7 { margin-top: var(--sp-7); } .mt-8 { margin-top: var(--sp-8); }
.mt-9 { margin-top: var(--sp-9); }

.mb-1 { margin-bottom: var(--sp-1); } .mb-2 { margin-bottom: var(--sp-2); }
.mb-3 { margin-bottom: var(--sp-3); } .mb-4 { margin-bottom: var(--sp-4); }
.mb-5 { margin-bottom: var(--sp-5); } .mb-6 { margin-bottom: var(--sp-6); }

.my-2 { margin-block: var(--sp-2); } .my-4 { margin-block: var(--sp-4); }
.my-6 { margin-block: var(--sp-6); } .my-8 { margin-block: var(--sp-8); }

.px-3 { padding-inline: var(--sp-3); } .px-4 { padding-inline: var(--sp-4); }
.px-5 { padding-inline: var(--sp-5); }
.py-3 { padding-block: var(--sp-3); } .py-4 { padding-block: var(--sp-4); }
.py-5 { padding-block: var(--sp-5); }

/* ==========================================================================
   4. NAVIGATION
   Structure: <nav class="nav"> .container > [.nav-brand] [.nav-toggle] [.nav-links a.nav-link…] ...
   JS adds .scrolled on scroll and .nav-open when the burger is open.
   ========================================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--md-sys-color-surface) 88%, transparent);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  transition: box-shadow var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.nav.scrolled {
  box-shadow: var(--md-sys-shadow);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  min-height: 60px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--md-sys-color-primary);
}
.nav-brand:hover { color: var(--md-sys-color-primary-dim); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  margin-left: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  transition: color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    background var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.nav-link:hover {
  color: var(--md-sys-color-primary);
  background: var(--md-sys-color-secondary-container);
}
.nav-link.active {
  color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary-container);
}
.nav-link.active:hover { color: var(--md-sys-color-on-primary-container); }

/* Cart badge (JS updates #cart-count text) */
.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--radius-pill);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.cart-count.cart-bump {
  animation: cartBump 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes cartBump {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

/* Mobile burger — hidden on desktop, shown <640px */
.nav-toggle {
  display: none;
  margin-left: auto;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  background: var(--md-sys-color-on-surface);
  transition: transform var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    opacity var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}

/* ==========================================================================
   5. HERO (storefront landing)
   ========================================================================== */

.hero {
  padding: var(--sp-9) var(--sp-5);
  background: linear-gradient(
    135deg,
    var(--md-sys-color-primary-container) 0%,
    var(--md-sys-color-surface) 100%
  );
  text-align: center;
}
.hero h1 {
  margin-bottom: var(--sp-3);
  color: var(--md-sys-color-on-primary-container);
}
.hero-subtitle {
  max-width: 640px;
  margin: 0 auto;
  font-size: var(--font-size-lg);
  color: var(--md-sys-color-on-surface-variant);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-7);
  margin-top: var(--sp-7);
}
.hero-stat strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--md-sys-color-primary);
}
.hero-stat span {
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface-variant);
}

.section-title {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin: var(--sp-8) 0 var(--sp-5);
  font-weight: 700;
}
.section-title::before {
  content: "";
  width: 4px;
  height: 1.2em;
  border-radius: 2px;
  background: var(--md-sys-color-primary);
}

/* ==========================================================================
   6. BUTTONS
   min-height 44px · radius 12px · filled/outlined/text variants
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 44px;
  padding: var(--sp-3) var(--sp-6);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  user-select: none;
  -webkit-appearance: none;
  transition: background-color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    border-color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    transform var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    box-shadow var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.btn:active { transform: scale(0.97); }
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}
.btn:disabled:active,
.btn.disabled:active { transform: none; }

.btn-primary {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}
.btn-primary:hover:not(:disabled) {
  background: color-mix(in srgb, var(--md-sys-color-primary-container) 80%, var(--md-sys-color-primary) 20%);
  box-shadow: var(--md-sys-shadow);
}

.btn-outline {
  border-color: var(--md-sys-color-outline);
  background: transparent;
  color: var(--md-sys-color-primary);
}
.btn-outline:hover:not(:disabled) {
  background: var(--md-sys-color-secondary-container);
  border-color: var(--md-sys-color-primary);
}

.btn-text {
  background: transparent;
  color: var(--md-sys-color-primary);
}
.btn-text:hover:not(:disabled) {
  background: var(--md-sys-color-secondary-container);
}

.btn-danger { background: var(--md-sys-color-error); color: var(--md-sys-color-on-error); }
.btn-danger:hover:not(:disabled) { box-shadow: var(--md-sys-shadow); }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-2);
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  transition: background var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    color var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.btn-icon:hover { background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-surface); }
.btn-icon:disabled { opacity: 0.5; cursor: not-allowed; }

/* ==========================================================================
   7. CARDS · PRODUCTS
   ========================================================================== */

.card {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  box-shadow: var(--md-sys-shadow-sm);
}

.grid-products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--sp-4);
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--md-sys-shadow-sm);
  transition: transform var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    box-shadow var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    border-color var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--md-sys-color-primary-dim);
  box-shadow: var(--md-sys-shadow-lg);
}

.product-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--md-sys-color-surface-variant);
}
.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.product-card:hover .product-img img { transform: scale(1.03); }
.product-img .placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 2rem;
  color: var(--md-sys-color-on-surface-variant);
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  flex: 1;
  padding: var(--sp-3);
}
.product-name {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--md-sys-color-on-surface);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-name:hover { color: var(--md-sys-color-primary); }

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-top: auto;
}
.product-unit {
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface-variant);
}

.price {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--md-sys-color-on-surface);
  white-space: nowrap;
}
.price-discount { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--sp-2); }
.old-price {
  font-weight: 400;
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: line-through;
}

/* Branch / review cards */
.branch-card {
  padding: var(--sp-5);
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  box-shadow: var(--md-sys-shadow-sm);
  transition: box-shadow var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    border-color var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.branch-card:hover {
  border-color: var(--md-sys-color-primary-dim);
  box-shadow: var(--md-sys-shadow);
}
.branch-card h3 { margin-bottom: var(--sp-2); }
.branch-address, .branch-phone {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface-variant);
}

.review-card {
  padding: var(--sp-5);
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
}
.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-2);
}
.review-author { font-weight: 600; }
.review-date { font-size: var(--font-size-sm); color: var(--md-sys-color-on-surface-variant); }
.review-text { margin: 0; color: var(--md-sys-color-on-surface); }
.review-empty { padding: var(--sp-6); text-align: center; }

/* ==========================================================================
   8. CHIPS · TAGS · BADGES · STOCK
   ========================================================================== */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-pill);
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.6;
  white-space: nowrap;
}
.chip a, a.chip { color: inherit; }
.chip a:hover, a.chip:hover { color: var(--md-sys-color-on-surface); }

.category-chip {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}
.category-chip a:hover, a.category-chip:hover { color: var(--md-sys-color-on-primary-container); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px var(--sp-2);
  border-radius: var(--radius-sm);
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px var(--sp-3);
  border-radius: var(--radius-pill);
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.8;
  white-space: nowrap;
}

.badge-primary { background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container); }
.badge-error   { background: var(--md-sys-color-error-container);   color: var(--md-sys-color-on-error-container); }

.stock-ok {
  background: var(--color-success-container);
  color: var(--color-on-success);
}
.stock-out {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}
.stock-low {
  background: var(--color-warning-container);
  color: color-mix(in srgb, var(--color-warning) 55%, var(--md-sys-color-on-surface));
}

/* ==========================================================================
   9. FORMS
   ========================================================================== */

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: 44px;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--md-sys-color-on-surface);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    box-shadow var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.form-textarea { min-height: 96px; resize: vertical; }
.form-input::placeholder, .form-textarea::placeholder {
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.8;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 25%, transparent);
}

.form-input:disabled, .form-textarea:disabled, .form-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-group { display: flex; flex-direction: column; gap: var(--sp-2); }
.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
}
.form-hint { font-size: var(--font-size-sm); color: var(--md-sys-color-on-surface-variant); }
.form-error { font-size: var(--font-size-sm); color: var(--md-sys-color-error); }
.form-actions { display: flex; gap: var(--sp-3); margin-top: var(--sp-5); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--sp-4); }

/* ==========================================================================
   10. SEARCH BAR (pill with icon)
   ========================================================================== */

.search-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-height: 48px;
  padding: 0 var(--sp-4);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--radius-pill);
  background: var(--md-sys-color-surface);
  transition: border-color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    box-shadow var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.search-bar:focus-within {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 25%, transparent);
}
.search-bar .search-icon {
  flex: 0 0 auto;
  color: var(--md-sys-color-on-surface-variant);
}
.search-bar input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--md-sys-color-on-surface);
  font-family: inherit;
  font-size: var(--font-size-base);
}
.search-bar input:focus { outline: none; }
.search-bar input::placeholder { color: var(--md-sys-color-on-surface-variant); }

/* ==========================================================================
   11. STARS · RATING
   ========================================================================== */

.stars {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  color: var(--color-star);
  font-size: 1rem;
  line-height: 1;
}
.stars .star {
  color: var(--md-sys-color-on-surface-variant);
}
.stars .star.filled { color: var(--color-star); }
.stars .star.half {
  background: linear-gradient(90deg, var(--color-star) 50%, var(--md-sys-color-on-surface-variant) 50%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stars .star.empty { color: var(--md-sys-color-on-surface-variant); }
.stars-value {
  margin-left: var(--sp-1);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
}

/* Interactive 1–5 star input: .rating-stars button.star (“data—) */
.rating-stars {
  display: flex;
  gap: var(--sp-1);
}
.rating-stars button.star {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--md-sys-color-on-surface-variant);
  transition: color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    transform var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.rating-stars button.star:hover,
.rating-stars button.star.selected,
.rating-stars button.star.active { color: var(--color-star); }
.rating-stars button.star:active { transform: scale(1.2); }
.rating-stars button.star:disabled { cursor: default; opacity: 0.5; }

/* ==========================================================================
   12. EMPTY STATE · TOAST · SPINNER
   ========================================================================== */

.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-9) var(--sp-5);
  text-align: center;
}
.empty-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-size: 2.5rem;
}
.empty-title { font-weight: 700; font-size: var(--font-size-lg); }
.empty-message { max-width: 380px; color: var(--md-sys-color-on-surface-variant); }

.toast {
  position: fixed;
  bottom: var(--sp-6);
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 300;
  max-width: min(92vw, 420px);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius-md);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-shadow-lg);
  border: 1px solid var(--md-sys-color-outline-variant);
  font-size: 0.9375rem;
  opacity: 0;
  pointer-events: none;
  transition: transform 300ms var(--md-sys-motion-ease),
    opacity 300ms var(--md-sys-motion-ease);
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.toast-success { background: var(--color-success-container); color: var(--color-on-success); }
.toast-error   { background: var(--md-sys-color-error-container);   color: var(--md-sys-color-on-error-container); }

.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--md-sys-color-outline-variant);
  border-top-color: var(--md-sys-color-primary);
  border-radius: 50%;
  animation: sp-rotate 0.8s linear infinite;
}
.spinner-sm { width: 20px; height: 20px; border-width: 2px; }
.spinner-lg { width: 48px; height: 48px; border-width: 4px; }
@keyframes sp-rotate {
  to { transform: rotate(360deg); }
}
.spinner-wrap {
  display: flex;
  justify-content: center;
  padding: var(--sp-8);
}

/* ==========================================================================
   13. DIALOG · BOTTOM SHEET
   ========================================================================== */

.dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--sp-5);
  background: var(--md-sys-color-scrim);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.dialog-backdrop.open { display: flex; }

.dialog {
  width: min(100%, 420px);
  max-height: 88vh;
  overflow-y: auto;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--md-sys-shadow-lg);
  padding: var(--sp-6);
}
.dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.dialog-header h3 { margin: 0; }
.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

/* Bottom sheet — 28px top radius */
.sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 210;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.25);
  padding: var(--sp-6) var(--sp-5) calc(var(--sp-6) + env(safe-area-inset-bottom, 0));
  transform: translateY(110%);
  transition: transform 300ms var(--md-sys-motion-ease);
}
.sheet.open { transform: translateY(0); }
.sheet::before {
  content: "";
  display: block;
  width: 36px;
  height: 4px;
  margin: 0 auto var(--sp-4);
  border-radius: 2px;
  background: var(--md-sys-color-outline-variant);
}
.sheet-handle-visible { padding-top: calc(var(--sp-4)); }

/* ==========================================================================
   14. FOOTER
   ========================================================================== */

.footer {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface-variant);
  padding-block: var(--sp-7);
  margin-top: var(--sp-9);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--sp-6);
}
.footer h4 {
  margin-bottom: var(--sp-3);
  font-size: 0.9375rem;
  color: var(--md-sys-color-on-surface);
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer ul li { margin-bottom: var(--sp-2); }
.footer a { color: var(--md-sys-color-on-surface-variant); }
.footer a:hover { color: var(--md-sys-color-primary); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   15. TABLES · QTY SELECTOR · PAGINATION
   ========================================================================== */

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.table th {
  text-align: left;
  padding: var(--sp-3) var(--sp-3);
  border-bottom: 2px solid var(--md-sys-color-outline-variant);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
}
.table td {
  padding: var(--sp-3);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  vertical-align: middle;
}
.table tbody tr {
  transition: background var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.table tbody tr:hover { background: var(--md-sys-color-secondary-container); }
.table tfoot td { font-weight: 700; border-top: 2px solid var(--md-sys-color-outline-variant); }

.qty-selector {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--md-sys-color-surface);
}
.qty-selector .qty-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  color: var(--md-sys-color-on-surface);
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.qty-selector .qty-btn:hover:not(:disabled) { background: var(--md-sys-color-secondary-container); }
.qty-selector .qty-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.qty-selector .qty-value {
  width: 44px;
  text-align: center;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sp-1);
  margin-top: var(--sp-6);
}
.pagination .page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-sm);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: background var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    color var(--md-sys-motion-duration) var(--md-sys-motion-ease),
    border-color var(--md-sys-motion-duration) var(--md-sys-motion-ease);
}
.pagination .page-link:hover:not(.active):not(.disabled) {
  background: var(--md-sys-color-secondary-container);
  border-color: var(--md-sys-color-primary-dim);
}
.pagination .page-link.active {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  cursor: default;
}
.pagination .page-link.disabled { opacity: 0.4; pointer-events: none; }
.pagination a.page-link { text-decoration: none; }

/* ==========================================================================
   16. ERROR PAGE (404)
   ========================================================================== */

.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  padding: var(--sp-9) var(--sp-5);
}
.error-code {
  font-size: clamp(4rem, 14vw, 8rem);
  font-weight: 800;
  line-height: 1;
  color: var(--md-sys-color-primary);
  letter-spacing: -0.03em;
}
.error-title { font-size: var(--font-size-lg); font-weight: 700; }
.error-message {
  max-width: 440px;
  color: var(--md-sys-color-on-surface-variant);
  margin: var(--sp-2) auto var(--sp-5);
}

/* ==========================================================================
   17. RESPONSIVE  < 640px
   ========================================================================== */

@media (max-width: 640px) {
  .container { padding-inline: var(--sp-4); }

  /* Collapse nav to brand + burger */
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-1);
    padding: var(--sp-3) var(--sp-4) var(--sp-4);
    background: var(--md-sys-color-surface);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    box-shadow: var(--md-sys-shadow-lg);
  }
  .nav-links .nav-link { width: 100%; justify-content: flex-start; }
  .nav-open .nav-links { display: flex; }
  .nav-inner { position: relative; }

  .grid-products {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--sp-3);
  }
  .product-info { gap: var(--sp-1); padding: var(--sp-3); }

  .hero { padding: var(--sp-7) var(--sp-4); }
  .hero-stats { gap: var(--sp-5); }

  .form-row { grid-template-columns: 1fr; }
  .form-actions .btn { flex: 1 1 100%; }
  form .btn-block-mobile { width: 100%; }

  .dialog { border-radius: var(--radius-2xl); }

  .grid-2 { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ==========================================================================
   18. MOTION — prefers-reduced-motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   19. STOREFRONT SHELL + PAGE COMPONENTS
   (bootstrap nav/footer classes + store/product/branch/rate page classes)
   ========================================================================== */

/* --- nav (emitted by lib/bootstrap.php::load_page) --- */
.store-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-3) var(--sp-5);
  background: var(--store-nav-bg);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  backdrop-filter: blur(14px) saturate(180%);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  transition: box-shadow var(--md-sys-motion-duration) ease,
    background-color var(--md-sys-motion-duration) ease,
    padding var(--md-sys-motion-duration) ease;
}
.store-nav.is-scrolled {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
  background: var(--store-nav-bg-solid);
}
.store-nav__brand {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  flex-shrink: 0;
}
.store-nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-left: auto;
  flex: 0 1 auto;
  min-width: 0;
}
.store-nav__links a {
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  font-weight: 500;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-pill);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s ease, background 0.15s ease;
}
.store-nav__links a:hover {
  color: var(--md-sys-color-primary);
  background: var(--md-sys-color-secondary-container);
}
.store-nav__links .store-nav__cart { display: inline-flex; align-items: center; gap: var(--sp-1); }
.store-nav__auth--cta {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary) !important;
  font-weight: 700;
}
.store-nav__auth--cta:hover {
  background: var(--md-sys-color-primary-dim);
  color: var(--md-sys-color-on-primary) !important;
}

/* Mobile burger toggle for store-nav */
.store-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  margin-left: auto;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--md-sys-motion-duration) ease;
}
.store-nav__toggle:hover,
.store-nav__toggle:focus-visible {
  background: var(--md-sys-color-secondary-container);
  outline: none;
}
.store-nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  background: var(--md-sys-color-on-surface);
  transition: transform var(--md-sys-motion-duration) ease,
    opacity var(--md-sys-motion-duration) ease;
}
/* Burger → X when open */
.store-nav.nav-open .store-nav__toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.store-nav.nav-open .store-nav__toggle span:nth-child(2) {
  opacity: 0;
}
.store-nav.nav-open .store-nav__toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-secondary-container);
  cursor: pointer;
  position: relative;
  flex: none;
}
.theme-toggle::before {
  content: "☾";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-surface);
  font-size: 18px;
}
[data-theme="dark"] .theme-toggle::before { content: "☀"; }

/* --- main / footer shell --- */
.store-main { min-height: 60vh; padding: var(--sp-6) 0 var(--sp-9); }
.store-main > .container,
.store-main > .page { max-width: 1080px; margin-inline: auto; padding-inline: var(--sp-5); }
.store-footer {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding: var(--sp-7) var(--sp-5);
  text-align: center;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--font-size-sm);
}
.store-footer p { margin: 0 0 var(--sp-2); }
.store-footer__links a { color: var(--md-sys-color-primary); text-decoration: none; }

/* --- hero extras (store.php) --- */
.hero-banner { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: var(--sp-5); }
.hero-banner img { display: block; width: 100%; max-height: 320px; object-fit: cover; }
.hero-desc { color: var(--md-sys-color-on-surface-variant); margin: var(--sp-3) 0 0; }
.hero-info { display: flex; flex-wrap: wrap; gap: var(--sp-3); color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); margin-top: var(--sp-3); }
.hero-sep { opacity: 0.6; }

/* --- star variants used by pages --- */
.stars .star.star-filled,
.stars .star.active { color: var(--color-star); }
.stars .star { cursor: default; }

/* --- search/filter bar (store.php) --- */
.search-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-4);
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  margin-bottom: var(--sp-6);
}
.search-bar .form-input { flex: 1 1 160px; }

/* --- product grid extras --- */
.product-img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 120px;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--md-sys-color-on-primary-container);
  background: var(--md-sys-color-primary-container);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.product-card .product-img { text-decoration: none; }

/* --- branches (store.php + branch.php) --- */
.branch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--sp-4);
}
.branch-card { display: block; }
.branch-name { font-weight: 700; margin-bottom: var(--sp-1); }
.branch-location { color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); }
.branch-hero { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-5); }
.branch-meta { color: var(--md-sys-color-on-surface-variant); margin: var(--sp-1) 0; }
.branch-cashiers { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--sp-4); }
.branch-card-head { display: flex; align-items: center; gap: var(--sp-3); }
.branch-card-name { margin: 0 0 var(--sp-1); }
.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--md-sys-color-on-primary-container);
  background: var(--md-sys-color-primary-container);
  flex: none;
}
.rating-count { color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); margin: var(--sp-2) 0; }
.back-row { margin-top: var(--sp-6); }

/* --- contact (store.php) --- */
.contact-card { display: flex; flex-direction: column; gap: var(--sp-3); align-items: flex-start; }
.contact-line { color: var(--md-sys-color-on-surface-variant); }
.contact-line a { color: var(--md-sys-color-primary); text-decoration: none; }

/* --- crumbs / breadcrumb (product.php, branch.php, rate_cashier.php) --- */
.crumbs {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-bottom: var(--sp-6);
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--font-size-sm);
}
.crumbs a { color: var(--md-sys-color-primary); text-decoration: none; }
.crumbs .chip { cursor: default; }

/* --- product detail (product.php) --- */
.product-detail { padding: var(--sp-6); }
.product-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: var(--sp-7);
  align-items: start;
}
.product-media { min-width: 0; }
.product-media .product-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background: var(--md-sys-color-surface-variant);
}
.product-info .product-name { margin: var(--sp-2) 0 var(--sp-3); }
.variant-tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.description { color: var(--md-sys-color-on-surface-variant); line-height: 1.6; }
.add-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3); margin-top: var(--sp-5); }
.qty-label { font-weight: 600; font-size: var(--font-size-sm); }
.add-row .form-input.qty { width: 96px; }
.add-cart-msg { color: var(--color-success); font-size: var(--font-size-sm); font-weight: 500; }
.share-qr { margin-top: var(--sp-6); display: flex; flex-direction: column; align-items: center; gap: var(--sp-3); text-align: center; }
.qr-box {
  padding: var(--sp-4);
  background: #fff;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  display: inline-flex;
}
.qr { display: block; }
.qr-note { color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); }

/* --- rate cashier (rate_cashier.php) --- */
.rate-card { padding: var(--sp-6); }
.rate-cashier-head { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.rate-cashier-name { color: var(--md-sys-color-on-surface-variant); margin: 0; }
.stars-select { border: 0; padding: 0; margin: 0 0 var(--sp-4); }
.stars-select .stars { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: var(--sp-2); }
.stars-select .star {
  font-size: 32px;
  cursor: pointer;
  color: var(--md-sys-color-outline);
  transition: color 0.15s ease, transform 0.15s ease;
}
.stars-select .star:hover,
.stars-select .star:hover ~ .star { color: var(--color-star); }
.star-radio { position: absolute; opacity: 0; pointer-events: none; }
.stars-select .stars:has(.star-radio:checked) .star { color: var(--color-star); }
.stars-select .star:focus-visible { outline: 2px solid var(--md-sys-color-primary); outline-offset: 2px; }

/* --- order page (order.php) --- */
.order-waiting,
.order-done,
.order-cta { display: flex; flex-direction: column; align-items: center; gap: var(--sp-3); text-align: center; padding: var(--sp-7); }
.pay-waiting-text { font-weight: 600; font-size: var(--font-size-lg); }
.pay-hint { color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); max-width: 380px; }

@media (max-width: 640px) {
  .store-nav {
    position: relative;
    flex-wrap: nowrap;
    padding: var(--sp-2) var(--sp-4);
    gap: var(--sp-2);
  }
  .store-nav__toggle { display: inline-flex; }
  .store-nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-1);
    order: 3;
    width: auto;
    padding: var(--sp-3) var(--sp-4) var(--sp-4);
    background: color-mix(in srgb, var(--md-sys-color-surface) 98%, transparent);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    backdrop-filter: blur(14px) saturate(180%);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    box-shadow: 0 8px 24px rgba(0,0,0,0.10);
    z-index: 60;
  }
  .store-nav__links a {
    width: 100%;
    justify-content: flex-start;
    min-height: 48px;
    padding: var(--sp-2) var(--sp-3);
  }
  .store-nav.nav-open .store-nav__links { display: flex; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .product-media .product-img { max-height: 300px; }
  .branch-hero { flex-direction: column; align-items: flex-start; }
  .search-bar .btn { flex: 1 1 100%; }
}

/* ==========================================================================
   §20 — store discovery / home page (pages/home.php) + share + recent
   ========================================================================== */

.home-hero { text-align: center; padding: var(--sp-8) 0 var(--sp-6); }
.home-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: var(--sp-4);
}
.home-hero__title { font-size: clamp(1.6rem, 4vw, 2.4rem); margin-bottom: var(--sp-3); }
.home-hero__subtitle { color: var(--md-sys-color-on-surface-variant); max-width: 520px; margin: 0 auto var(--sp-5); }
.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
  margin-bottom: var(--sp-6);
}
.home-hero__actions .btn-lg { font-size: var(--font-size-lg); padding: 12px 26px; }
.home-hero__actions .btn-ghost {
  background: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline-variant);
}
.home-hero__actions .btn-ghost:hover {
  background: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary);
}
.home-hero__guest {
  max-width: 560px;
  margin: var(--sp-4) auto 0;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--font-size-sm);
}

.home-search { display: flex; flex-wrap: wrap; gap: var(--sp-3); justify-content: center; max-width: 720px; margin: 0 auto; }
.home-search .form-input { flex: 1 1 200px; }
.home-search .btn { flex: 0 0 auto; }

.home-results { padding: var(--sp-6) 0; }
.home-results h2 small { color: var(--md-sys-color-on-surface-variant); font-weight: 400; }
.home-empty { text-align: center; color: var(--md-sys-color-on-surface-variant); padding: var(--sp-6); }

.store-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--sp-4); margin-top: var(--sp-4); }

.store-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.store-card:hover { border-color: var(--md-sys-color-primary); transform: translateY(-2px); }
.store-card__name { margin: 0 0 var(--sp-2); font-size: var(--font-size-lg); }
.store-card__name a { color: inherit; text-decoration: none; }
.store-card__name a:hover { color: var(--md-sys-color-primary); }
.store-card__chips { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin: 0 0 var(--sp-2); }
.store-card__loc,
.store-card__products { margin: 0 0 var(--sp-1); color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); }
.store-card__rating { margin: var(--sp-2) 0 0; }
.store-card .btn { align-self: flex-start; }

.home-direct {
  margin-top: var(--sp-6);
  padding: var(--sp-6);
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  text-align: center;
}
.home-direct__hint { margin: 0 0 var(--sp-4); }
.home-direct__form { display: flex; flex-wrap: wrap; gap: var(--sp-3); justify-content: center; max-width: 420px; margin: 0 auto; }
.home-direct__form .form-input { flex: 1 1 160px; }
.home-direct__link { margin: var(--sp-4) 0 0; font-size: var(--font-size-sm); color: var(--md-sys-color-on-surface-variant); }

.share-qr { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-4); padding-top: var(--sp-5); border-top: 1px solid var(--md-sys-color-outline-variant); }
.share-btns { display: flex; flex-wrap: wrap; gap: var(--sp-3); }

#recent-section .product-card { min-width: 0; }

/* ==========================================================================
   §21 — MD3.5 polish: product cards, ratings & reviews, staff (online cashier)
   Elevation via surface tint + tonal hover, shape tokens, focus rings.
   ========================================================================== */

/* --- Product grid: wider min card, generous gap (MD3.5 carousel feel) --- */
.grid-products {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--sp-5);
}

/* --- Product card: elevated surface, state layers --- */
.product-card {
  border: 0;
  border-radius: var(--radius-xl);
  box-shadow: var(--md-sys-shadow-sm);
  transition: transform 0.18s var(--md-sys-motion-ease),
    box-shadow 0.18s var(--md-sys-motion-ease);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--md-sys-shadow-lg);
}
.product-card:focus-visible {
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 3px;
}
.product-card .product-img {
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, var(--md-sys-color-secondary-container), var(--md-sys-color-surface-variant));
}
.product-card:hover .product-img img { transform: scale(1.06); }
.product-card .product-img .placeholder { font-size: 2.6rem; }
.product-card .product-info {
  padding: var(--sp-4);
  gap: var(--sp-3);
  background: var(--md-sys-color-surface);
}
.product-card .product-name {
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: 0.01em;
}
.product-card .product-unit { font-size: 0.8rem; }
.product-card .price { font-size: 1.15rem; }
.product-card .product-meta { margin-top: auto; }

/* store.php grid: card WITHOUT .product-info wrapper (direct children) */
.product-card:has(> a.product-name) {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-4);
}
.product-card:has(> a.product-name) .product-img {
  margin: calc(-1 * var(--sp-4)) calc(-1 * var(--sp-4)) 0;
}
.product-card:has(> a.product-name) .price { margin-top: auto; }
.product-card:has(> a.product-name) .badge,
.product-card:has(> a.product-name) .category-chip { align-self: flex-start; }

/* --- Price emphasis (product detail) --- */
.product-detail .price { font-size: 1.7rem; }

/* --- Section titles (MD3.5: larger, tinted rule) --- */
.section-title { font-size: 1.25rem; }
.section-title::before {
  border-radius: var(--radius-pill);
  background: linear-gradient(var(--md-sys-color-primary), var(--md-sys-color-primary-dim));
}

/* --- Badges: tonal chips, no harsh fills --- */
.badge {
  border-radius: var(--radius-pill);
  box-shadow: none;
}

/* --- Stars (reusable, product + branch + ratings) --- */
.stars { display: inline-flex; gap: 1px; align-items: center; }
.star { color: var(--md-sys-color-outline); }
.star.star-filled,
.star.active { color: var(--color-star); }
.stars-value {
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface-variant);
}

/* --- Product ratings block (product.php, BETA) --- */
.product-rating { margin-top: var(--sp-8); }
.product-rating__summary {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--radius-lg);
  background: var(--md-sys-color-secondary-container);
  margin-bottom: var(--sp-5);
}
.product-rating__big { font-size: 1.9rem; font-weight: 700; color: var(--md-sys-color-primary); }
.product-rating__summary .stars .star { font-size: 1.35rem; }
.product-rating__form {
  padding: var(--sp-5);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  margin-bottom: var(--sp-5);
}
.product-rating__form .stars .star { font-size: 2rem; }
.product-rating__reviews { display: flex; flex-direction: column; gap: var(--sp-3); }
.pr-review {
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  background: var(--md-sys-color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.pr-review__text { margin: 0; color: var(--md-sys-color-on-surface); }
.pr-review__date {
  font-size: 0.78rem;
  color: var(--md-sys-color-on-surface-variant);
}

/* --- Staff / online cashier panel (staff.php) --- */
.staff-shell { max-width: 680px; margin: 0 auto; }
.staff-login {
  max-width: 380px;
  margin: var(--sp-7) auto 0;
  padding: var(--sp-6);
  border: 0;
  border-radius: var(--radius-xl);
  box-shadow: var(--md-sys-shadow);
}
.staff-login form { display: flex; flex-direction: column; gap: var(--sp-4); }
.staff-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}
.staff-user { display: flex; align-items: center; gap: var(--sp-3); }
.staff-user-name { font-weight: 650; }
.staff-online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-success);
  font-weight: 600;
  font-size: var(--font-size-sm);
}
.staff-online::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-success) 18%, transparent);
}
.staff-request {
  border: 0;
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  margin-bottom: var(--sp-4);
  background: var(--md-sys-color-surface);
  box-shadow: var(--md-sys-shadow-sm);
  transition: box-shadow 0.15s var(--md-sys-motion-ease),
    transform 0.15s var(--md-sys-motion-ease);
}
.staff-request:hover { box-shadow: var(--md-sys-shadow); transform: translateY(-2px); }
.staff-request-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--sp-3);
  flex-wrap: wrap;
  margin-bottom: var(--sp-2);
}
.staff-request-total { font-size: 1.2rem; font-weight: 700; color: var(--md-sys-color-primary); }
.staff-request-meta { color: var(--md-sys-color-on-surface-variant); font-size: var(--font-size-sm); }
.staff-request-actions { display: flex; gap: var(--sp-3); margin-top: var(--sp-4); }
.staff-empty {
  text-align: center;
  color: var(--md-sys-color-on-surface-variant);
  padding: var(--sp-7);
}
/* ========== BRIDGE: Web MD3 tokens (--md-*) ==========
   Maps the web design system (web/lib/css/md3.css) onto the storefront
   tokens. Values follow the storefront palette (incl. dark/palette themes).
   Lets shared md3-based components render inside the storefront. */
:root {
  --md-primary: var(--md-sys-color-primary);
  --md-on-primary: var(--md-sys-color-on-primary);
  --md-primary-container: var(--md-sys-color-primary-container);
  --md-on-primary-container: var(--md-sys-color-on-primary-container);
  --md-primary-dim: var(--md-sys-color-primary-dim);
  --md-secondary: var(--md-sys-color-secondary);
  --md-on-secondary: var(--md-sys-color-on-secondary);
  --md-secondary-container: var(--md-sys-color-secondary-container);
  --md-on-secondary-container: var(--md-sys-color-on-secondary-container);
  --md-tertiary: var(--md-sys-color-tertiary);
  --md-on-tertiary: var(--md-sys-color-on-tertiary);
  --md-tertiary-container: var(--md-sys-color-tertiary-container);
  --md-on-tertiary-container: var(--md-sys-color-on-tertiary-container);
  --md-error: var(--md-sys-color-error);
  --md-on-error: var(--md-sys-color-on-error);
  --md-error-container: var(--md-sys-color-error-container);
  --md-on-error-container: var(--md-sys-color-on-error-container);
  --md-surface: var(--md-sys-color-surface);
  --md-on-surface: var(--md-sys-color-on-surface);
  --md-on-surface-variant: var(--md-sys-color-on-surface-variant);
  --md-outline: var(--md-sys-color-outline);
  --md-outline-variant: var(--md-sys-color-outline-variant);
  --md-shape-xs: var(--radius-xs);
  --md-shape-sm: var(--radius-sm);
  --md-shape-md: var(--radius-md);
  --md-shape-lg: var(--radius-lg);
  --md-shape-xl: var(--radius-xl);
  --md-shape-2xl: var(--radius-2xl);
  --md-shape-full: var(--radius-pill);
  --md-elev-1: var(--md-sys-shadow-sm);
  --md-elev-2: var(--md-sys-shadow);
  --md-elev-3: var(--md-sys-shadow-lg);
}

/* --- Store Navigation & System UI Compatibility Bridge --- */
.store-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--store-nav-bg, rgba(250, 250, 250, .92));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: box-shadow 0.2s var(--md-sys-motion-ease);
}
.store-nav.is-scrolled {
  box-shadow: var(--md-sys-shadow);
}
.store-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
}
.store-nav__brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.store-nav__brand-icon .material-symbols-rounded { font-size: 20px; }

.store-nav__links {
  display: flex;
  align-items: center;
  gap: 12px;
}
.store-nav__links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.store-nav__links a:hover {
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-primary);
}
.store-nav__auth--cta {
  background: var(--md-sys-color-primary) !important;
  color: var(--md-sys-color-on-primary) !important;
  font-weight: 600;
}
.store-nav__auth--cta:hover {
  background: var(--md-sys-color-primary-dim) !important;
  transform: translateY(-1px);
}
.store-nav__toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--md-sys-color-on-surface);
  cursor: pointer;
  padding: 8px;
}
@media (max-width: 768px) {
  .store-nav__toggle { display: flex; align-items: center; justify-content: center; }
  .store-nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--store-nav-bg-solid, #FAFAFA);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    padding: 16px;
    box-shadow: var(--md-sys-shadow);
  }
  .store-nav.nav-open .store-nav__links { display: flex; }
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-on-surface);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
}
.theme-toggle:hover {
  background: var(--md-sys-color-surface-variant);
  transform: scale(1.05);
}

.store-footer {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding: 32px 24px;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.9rem;
}
.store-footer__inner {
  max-width: 1080px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.store-footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
}

/* System Button Classes (Matching site-v2.css) */
.btn-filled {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-filled:hover { transform: translateY(-1px); box-shadow: var(--md-sys-shadow); }

.btn-outlined {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  background: transparent;
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn-outlined:hover { transform: translateY(-1px); background: var(--md-sys-color-surface-variant); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  background: transparent;
  color: var(--md-sys-color-primary);
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}
.btn-ghost:hover { background: var(--md-sys-color-surface-variant); }

