/* Richie Gold & Diamonds — category-first mobile discovery, 2026-09-21.
 * Handset-only rails complement the existing desktop grid and preserve all
 * product, checkout, cart, Stripe, and watch enquiry policies.
 */

.mobile-category-hubs { display: none; }
.mobile-category-status {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (max-width: 768px) {
  #products > .section-head,
  #products > #grid { display: none; }

  .mobile-category-hubs {
    display: block;
    position: relative;
    width: 100%;
    padding: 8px var(--richie-mobile-edge) 24px;
  }
  .mobile-category-hubs-inner { display: grid; gap: 34px; }
  .mobile-category-hubs-head {
    max-width: 31rem;
    padding-top: 6px;
  }
  .mobile-category-hubs-head h2,
  .mobile-category-rail-head h2,
  .category-page-head h1 {
    margin: 4px 0 8px;
    color: var(--ink);
    font-family: var(--serif);
    font-size: clamp(32px, 9vw, 45px);
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: .97;
    text-wrap: balance;
  }
  .mobile-category-hubs-head > p:last-child,
  .mobile-category-rail-copy,
  .category-page-head > p {
    margin: 0;
    color: var(--ink-dim);
    font-size: 14px;
    line-height: 1.55;
  }
  .mobile-category-kicker {
    margin: 0;
    color: var(--gold-2);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .2em;
    text-transform: uppercase;
  }

  .mobile-category-menu {
    display: flex;
    gap: 8px;
    width: calc(100% + var(--richie-mobile-edge));
    margin-inline-end: calc(var(--richie-mobile-edge) * -1);
    padding: 2px var(--richie-mobile-edge) 4px 0;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .mobile-category-menu::-webkit-scrollbar { display: none; }
  .mobile-category-menu-link {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 44px;
    padding: 9px 13px;
    border: 1px solid rgba(212, 175, 55, .22);
    border-radius: 999px;
    background: rgba(255, 255, 255, .025);
    color: var(--ink-dim);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .09em;
    scroll-snap-align: start;
    text-decoration: none;
    text-transform: uppercase;
  }
  .mobile-category-menu-link small {
    display: grid;
    min-width: 17px;
    height: 17px;
    padding-inline: 3px;
    place-items: center;
    border-radius: 999px;
    background: rgba(212, 175, 55, .12);
    color: var(--gold-2);
    font-size: 8px;
  }
  .mobile-category-menu-link.is-current,
  .mobile-category-menu-link:active {
    border-color: var(--gold);
    background: rgba(212, 175, 55, .14);
    color: var(--gold-2);
  }
  .mobile-category-menu-link:focus-visible,
  .mobile-category-rail:focus-visible,
  .mobile-category-rail-control:focus-visible,
  .pdp-gallery-controls button:focus-visible {
    outline: 2px solid var(--gold-2);
    outline-offset: 3px;
  }

  .mobile-category-rail-section {
    min-width: 0;
    scroll-margin-top: 104px;
  }
  .mobile-category-rail-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 8px;
  }
  .mobile-category-rail-head h2 { font-size: clamp(27px, 7.5vw, 34px); }
  .mobile-category-rail-head > a,
  .category-page-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 7px 0 7px 9px;
    color: var(--gold-2);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .1em;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
  }
  .mobile-category-rail-head > a span { margin-left: 4px; font-size: 15px; }
  .mobile-category-rail-copy { max-width: 34rem; margin-bottom: 14px; }

  .mobile-category-rail-shell { position: relative; }
  .mobile-category-rail {
    display: grid;
    grid-auto-columns: calc((100% - 12px) / 2);
    grid-auto-flow: column;
    gap: 12px;
    margin-inline: calc(var(--richie-mobile-edge) * -1);
    padding: 2px var(--richie-mobile-edge) 12px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x pan-y;
  }
  .mobile-category-rail::-webkit-scrollbar { display: none; }
  .mobile-category-rail-control {
    position: absolute;
    z-index: 2;
    top: calc(50% - 28px);
    display: grid;
    width: 44px;
    min-height: 44px;
    place-items: center;
    border: 1px solid rgba(212, 175, 55, .4);
    border-radius: 50%;
    background: rgba(8, 20, 38, .92);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
    color: var(--gold-2);
    cursor: pointer;
    font-family: var(--serif);
    font-size: 30px;
    line-height: 1;
  }
  .mobile-category-rail-control.is-prev { left: -10px; }
  .mobile-category-rail-control.is-next { right: -10px; }
  .mobile-category-rail-control:active { transform: scale(.96); }
  .mobile-category-rail-hint {
    margin: 1px 0 0;
    color: var(--ink-mute);
    font-size: 10px;
    letter-spacing: .06em;
  }

  .mobile-category-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(212, 175, 55, .16);
    border-radius: 15px;
    background: linear-gradient(155deg, rgba(18, 42, 72, .82), rgba(8, 20, 38, .96));
    box-shadow: 0 12px 28px rgba(0, 0, 0, .16);
    scroll-snap-align: start;
  }
  .mobile-category-card-media {
    display: block;
    aspect-ratio: 1;
    overflow: hidden;
    background:
      radial-gradient(circle at 50% 38%, rgba(212, 175, 55, .12), transparent 54%),
      linear-gradient(145deg, #102945, #081426);
  }
  .mobile-category-card-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 7%;
    filter: drop-shadow(0 15px 18px rgba(0, 0, 0, .3));
  }
  .mobile-category-card-copy {
    display: grid;
    grid-template-rows: minmax(2.35em, auto) auto auto;
    gap: 7px;
    padding: 10px;
  }
  .mobile-category-card h3 {
    display: -webkit-box;
    min-height: 2.35em;
    margin: 0;
    overflow: hidden;
    color: var(--ink);
    font-family: var(--serif);
    font-size: clamp(16px, 4.6vw, 19px);
    font-weight: 500;
    line-height: 1.16;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .mobile-category-card h3 a { color: inherit; text-decoration: none; }
  .mobile-category-card-price {
    min-height: 1.25em;
    margin: 0;
    color: var(--gold-2);
    font-size: clamp(14px, 4vw, 17px);
    font-weight: 700;
    letter-spacing: -.02em;
    line-height: 1.2;
  }
  .mobile-category-card-price.is-poa {
    font-family: var(--serif);
    font-style: italic;
    font-weight: 500;
  }
  .mobile-category-card-detail {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    color: var(--ink-dim);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .1em;
    text-decoration: none;
    text-transform: uppercase;
  }
  .mobile-category-card-detail span { margin-left: 4px; color: var(--gold-2); font-size: 14px; }

  body[data-page="collection"] {
    padding-bottom: var(--richie-mobile-tabbar);
  }
  .category-page {
    width: min(100%, 760px);
    margin: 0 auto;
    padding: 114px var(--richie-mobile-edge) calc(var(--richie-mobile-tabbar) + 30px);
  }
  .category-page-back { margin: -7px 0 16px; padding-left: 0; }
  .category-page-head { max-width: 35rem; margin-bottom: 22px; }
  .category-page-head h1 { font-size: clamp(36px, 11vw, 52px); }
  .category-page .mobile-category-menu { margin-bottom: 24px; }
  .category-page-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
  .category-page-empty {
    display: grid;
    gap: 14px;
    padding: 24px;
    border: 1px solid rgba(212, 175, 55, .2);
    border-radius: 18px;
    background: rgba(16, 41, 69, .55);
  }
  .category-page-empty h2 { margin: 0; font-family: var(--serif); font-size: 28px; font-weight: 500; }
  .category-page-empty p { margin: 0; color: var(--ink-dim); font-size: 14px; line-height: 1.55; }
  .category-page-empty .btn { min-height: 48px; }

  .pdp-media { touch-action: pan-y; }
  .pdp-gallery-controls {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 44px;
    align-items: center;
    gap: 8px;
    margin: 10px var(--richie-mobile-edge) 0;
    color: var(--ink-mute);
    font-size: 10px;
    letter-spacing: .09em;
    text-align: center;
    text-transform: uppercase;
  }
  .pdp-gallery-controls button {
    display: grid;
    min-height: 44px;
    place-items: center;
    border: 1px solid rgba(212, 175, 55, .3);
    border-radius: 50%;
    background: rgba(16, 41, 69, .65);
    color: var(--gold-2);
    cursor: pointer;
    font-family: var(--serif);
    font-size: 27px;
    line-height: 1;
  }
  .pdp-gallery-controls button:active { transform: scale(.96); }
}

@media (min-width: 769px) {
  body[data-page="collection"] .category-page {
    width: min(100% - 80px, 1280px);
    margin: 0 auto;
    padding: 156px 0 100px;
  }
  body[data-page="collection"] .category-page-head { max-width: 720px; margin-bottom: 28px; }
  body[data-page="collection"] .category-page-head h1 { font-family: var(--serif); font-size: clamp(48px, 6vw, 80px); font-weight: 500; margin: 8px 0; }
  body[data-page="collection"] .category-page-head > p { color: var(--ink-dim); font-size: 16px; line-height: 1.6; }
  body[data-page="collection"] .mobile-category-menu { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
  body[data-page="collection"] .mobile-category-menu-link { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; padding: 10px 14px; border: 1px solid var(--line-soft); border-radius: 999px; color: var(--ink-dim); text-decoration: none; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
  body[data-page="collection"] .mobile-category-menu-link.is-current { color: var(--gold-2); border-color: var(--gold); }
  body[data-page="collection"] .mobile-category-menu-link small { color: var(--gold-2); }
  body[data-page="collection"] .category-page-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
  body[data-page="collection"] .mobile-category-card { overflow: hidden; border: 1px solid var(--line-soft); border-radius: 18px; background: var(--panel); }
  body[data-page="collection"] .mobile-category-card-media { display: block; aspect-ratio: 1; background: linear-gradient(145deg, #102945, #081426); }
  body[data-page="collection"] .mobile-category-card-media img { width: 100%; height: 100%; object-fit: contain; padding: 8%; }
  body[data-page="collection"] .mobile-category-card-copy { padding: 14px; }
  body[data-page="collection"] .mobile-category-card h3 { min-height: 2.35em; margin: 0; font-family: var(--serif); font-size: 22px; font-weight: 500; line-height: 1.18; }
  body[data-page="collection"] .mobile-category-card h3 a { color: var(--ink); text-decoration: none; }
  body[data-page="collection"] .mobile-category-card-price { margin: 8px 0; color: var(--gold-2); font-weight: 700; }
  body[data-page="collection"] .mobile-category-card-detail, body[data-page="collection"] .category-page-back { color: var(--gold-2); font-size: 11px; font-weight: 700; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
}

@media (max-width: 359px) {
  .mobile-category-hubs { padding-inline: 10px; }
  .mobile-category-rail { grid-auto-columns: calc((100% - 10px) / 2); gap: 10px; padding-inline: 10px; }
  .mobile-category-card-copy { padding: 9px; }
  .mobile-category-card h3 { font-size: 15px; }
  .mobile-category-card-price { font-size: 13px; }
  .mobile-category-rail-control { width: 40px; min-height: 40px; }
  .mobile-category-rail-control.is-prev { left: -6px; }
  .mobile-category-rail-control.is-next { right: -6px; }
  .category-page { padding-inline: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-category-rail { scroll-behavior: auto; }
  .mobile-category-rail-control,
  .pdp-gallery-controls button { transition: none !important; }
}