/* ============================================================
   jewelry-supply.com — Public site styles
   Clean, editorial, jewelry-brand appropriate. Gold accent.
   Mobile-first; sidebar stacks above content on small screens.
   ============================================================ */

:root {
  --gold: #b8860b;
  --gold-deep: #8f680a;
  --gold-soft: #f6ecd6;
  --ink: #1b1a17;
  --ink-soft: #56534c;
  --surface: #ffffff;
  --surface-alt: #faf9f6;
  --surface-sunken: #f0ede5;
  --border: #e6e2d8;
  --danger: #b3261e;
  --danger-soft: #fbeae9;
  --success: #1e7a45;
  --success-soft: #e8f5ec;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(27, 26, 23, 0.07);
  --shadow-md: 0 6px 20px rgba(27, 26, 23, 0.10);
  --shadow-lg: 0 20px 50px rgba(27, 26, 23, 0.22);
  --max-width: 1320px;
  --transition: 200ms cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--surface-alt);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 10px; }
p { margin: 0 0 12px; }
.text-muted { color: var(--ink-soft); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--gold); color: var(--ink); padding: 10px 16px; z-index: 999;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
}
.site-header__bar {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 20px;
}
.site-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; flex-shrink: 0; }
.site-logo img { border-radius: 6px; }
.site-logo__accent { color: var(--gold); }

.site-search { position: relative; flex: 1; max-width: 480px; }
.site-search input[type=search] {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font: inherit;
  background: var(--surface-alt);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-search input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184,134,11,0.15);
  background: var(--surface);
}
.autocomplete-wrap { position: relative; }
.autocomplete-list {
  position: absolute; z-index: 40; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); max-height: 320px; overflow-y: auto; display: none;
}
.autocomplete-list.is-open { display: block; }
.autocomplete-list a, .autocomplete-list button {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  padding: 10px 14px; border: none; background: none; cursor: pointer; font-size: 0.88rem;
  font-family: inherit; color: inherit;
}
.autocomplete-list a:hover, .autocomplete-list button:hover { background: var(--surface-sunken); }
.autocomplete-list__empty { padding: 14px; font-size: 0.85rem; color: var(--ink-soft); }

.site-header__menu-toggle {
  display: none; width: 40px; height: 40px; border: none; background: none;
  flex-direction: column; align-items: center; justify-content: center; gap: 4px; cursor: pointer;
}
.site-header__menu-toggle span { width: 20px; height: 2px; background: var(--ink); border-radius: 2px; }

.category-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 0 20px 12px;
  max-width: var(--max-width);
  margin: 0 auto;
  scrollbar-width: thin;
}
.category-tabs__link {
  flex-shrink: 0;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--surface-alt);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
.category-tabs__link:hover { background: var(--gold-soft); }
.category-tabs__link.is-active { background: var(--ink); color: #fff; }

/* ---------- Toast ---------- */
.site-toast {
  max-width: var(--max-width); margin: 14px auto 0; padding: 12px 18px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.9rem;
}
.site-toast--success { background: var(--success-soft); color: var(--success); }
.site-toast--error { background: var(--danger-soft); color: var(--danger); }

/* ---------- Shell / sidebar ---------- */
.site-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 60px;
}
.site-shell--with-sidebar {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
}
.site-sidebar { position: sticky; top: 96px; }
.site-sidebar__section { margin-bottom: 26px; }
.site-sidebar__section h3 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); margin-bottom: 10px; }
.filter-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.filter-list a { padding: 6px 8px; border-radius: var(--radius-sm); font-size: 0.88rem; transition: background var(--transition); }
.filter-list a:hover { background: var(--surface-sunken); }
.filter-list a.is-active { background: var(--gold-soft); color: var(--gold-deep); font-weight: 700; }

/* ---------- Hero ---------- */
.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}
.hero-card {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  display: flex;
  align-items: flex-end;
}
.hero-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.hero-card__fill { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 4rem; }
.hero-card__info {
  position: relative; z-index: 2; width: 100%; padding: 18px;
  background: linear-gradient(0deg, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0) 65%);
  color: #fff;
}
.hero-card__title { font-weight: 700; font-size: 1.02rem; margin: 0; }
.hero-card__meta { font-size: 0.78rem; opacity: 0.85; margin-top: 2px; }
.piece-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: var(--gold); color: var(--ink); font-size: 0.68rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.04em; padding: 4px 10px; border-radius: 999px;
}
.piece-badge--new { background: #fff; }
.piece-badge--editors { background: var(--ink); color: var(--gold); }

/* ---------- Ad banner ---------- */
.ad-banner {
  margin-bottom: 32px;
}

/* ---------- Category rows ---------- */
.category-row { margin-bottom: 36px; }
.category-row__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 14px; }
.category-row__head h2 { font-size: 1.15rem; }
.category-row__head a { font-size: 0.85rem; font-weight: 700; color: var(--gold-deep); }
.piece-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}
.piece-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.piece-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.piece-card__thumb {
  aspect-ratio: 1/1;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem;
  position: relative;
}
.piece-card__body { padding: 12px 14px; }
.piece-card__title { font-size: 0.9rem; font-weight: 700; margin: 0 0 4px; }
.piece-card__meta { font-size: 0.76rem; color: var(--ink-soft); display: flex; align-items: center; gap: 6px; }
.difficulty-dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.difficulty-dot--beginner { background: #6fae6f; }
.difficulty-dot--intermediate { background: var(--gold); }
.difficulty-dot--advanced { background: var(--danger); }

/* ---------- Piece modal ---------- */
.piece-modal { position: fixed; inset: 0; z-index: 100; }
.piece-modal[hidden] { display: none; }
.piece-modal__backdrop { position: absolute; inset: 0; background: rgba(20,18,14,0.6); backdrop-filter: blur(2px); }
.piece-modal__panel {
  position: relative;
  max-width: 920px;
  margin: 4vh auto;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: modal-in 220ms cubic-bezier(.2,.8,.2,1);
}
@keyframes modal-in { from { opacity: 0; transform: translateY(16px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.piece-modal__close {
  position: absolute; top: 14px; right: 14px; z-index: 5;
  width: 36px; height: 36px; border-radius: 50%; border: none;
  background: rgba(255,255,255,0.9); box-shadow: var(--shadow-sm); cursor: pointer; font-size: 1rem;
}
.piece-modal__body { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.piece-modal__media { background: var(--surface-sunken); display: flex; align-items: center; justify-content: center; min-height: 320px; padding: 20px; }
.piece-modal__content { padding: 28px; }
.piece-modal__artist { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.piece-modal__artist-avatar {
  width: 40px; height: 40px; border-radius: 50%; background: var(--gold-soft);
  display: flex; align-items: center; justify-content: center; font-weight: 800; color: var(--gold-deep);
}
.piece-modal__expert {
  background: var(--surface-alt); border-left: 3px solid var(--gold); border-radius: var(--radius-sm);
  padding: 14px 16px; font-size: 0.92rem; margin-bottom: 18px; white-space: pre-line;
}
.supply-list { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.supply-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.86rem;
}
.supply-list .supply-list__meta { color: var(--ink-soft); font-size: 0.78rem; }
.modal-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; font-size: 0.86rem; cursor: pointer; transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--gold); color: var(--ink); }
.btn-primary:hover { box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--surface-sunken); color: var(--ink); }
.btn-secondary:hover { background: var(--border); }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }

/* ---------- Image placeholders (reused pattern from admin) ---------- */
.image-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  background: repeating-linear-gradient(45deg, #f0eee8, #f0eee8 10px, #e7e4db 10px, #e7e4db 20px);
  border: 2px dashed var(--border); border-radius: var(--radius-md);
  color: var(--ink-soft); font-size: 0.78rem; font-weight: 600; text-align: center; padding: 12px; width: 100%;
}

/* ---------- Skeleton loaders ---------- */
.skeleton {
  background: linear-gradient(90deg, var(--surface-sunken) 25%, var(--border) 37%, var(--surface-sunken) 63%);
  background-size: 400% 100%; animation: skeleton-loading 1.4s ease infinite; border-radius: var(--radius-sm);
}
@keyframes skeleton-loading { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
.spinner {
  width: 16px; height: 16px; border: 2px solid rgba(0,0,0,0.15); border-top-color: var(--gold);
  border-radius: 50%; animation: spin 0.7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.85); margin-top: 40px; }
.site-footer__newsletter {
  max-width: var(--max-width); margin: 0 auto; padding: 44px 20px 30px; text-align: center;
}
.site-footer__newsletter h3 { color: #fff; font-size: 1.3rem; }
.newsletter-form { display: flex; gap: 8px; justify-content: center; max-width: 420px; margin: 16px auto 0; flex-wrap: wrap; }
.newsletter-form input[type=email] {
  flex: 1; min-width: 200px; padding: 11px 16px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08); color: #fff; font: inherit;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,0.5); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.newsletter-status { font-size: 0.82rem; margin-top: 10px; min-height: 1.2em; }

.site-footer__columns {
  max-width: var(--max-width); margin: 0 auto; padding: 20px 20px 30px;
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.site-footer__columns h4 { color: #fff; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px; }
.site-footer__columns a { display: block; padding: 4px 0; font-size: 0.86rem; color: rgba(255,255,255,0.7); }
.site-footer__columns a:hover { color: var(--gold); }

.site-footer__disclosure {
  max-width: var(--max-width); margin: 0 auto; padding: 20px 20px 40px;
  border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.78rem; color: rgba(255,255,255,0.55);
}

/* ---------- Related pieces (piece.php) ---------- */
.related-pieces { margin-top: 40px; }

/* ---------- Pagination ---------- */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 30px; flex-wrap: wrap; }
.pagination a, .pagination span {
  padding: 8px 14px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600;
  border: 1px solid var(--border); background: var(--surface);
}
.pagination a:hover { background: var(--surface-sunken); }
.pagination .is-current { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .site-shell--with-sidebar { grid-template-columns: 1fr; }
  .site-sidebar {
    position: fixed; top: 0; right: 0; bottom: 0; width: 280px; background: var(--surface);
    z-index: 60; padding: 20px; overflow-y: auto; transform: translateX(100%); transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
  }
  .site-sidebar.is-open { transform: translateX(0); }
  .site-header__menu-toggle { display: flex; }
  .hero-grid { grid-template-columns: 1fr 1fr; }
  .piece-modal__body { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero-grid { grid-template-columns: 1fr; }
  .site-footer__columns { grid-template-columns: 1fr; }
  .site-header__bar { flex-wrap: wrap; }
  .site-search { order: 3; max-width: 100%; flex-basis: 100%; }
}