/* =================================================================
   Design Library viewer (Phase 1 prototype)
   Warm, personal, quiet-luxury: ivory + charcoal + brushed-gold,
   serif headings, generous space, no SaaS-dashboard chrome.
   ================================================================= */

:root {
  --ivory: #f7f2e9;
  --ivory-deep: #efe7d8;
  --card: #fffdf8;
  --charcoal: #2a2420;
  --charcoal-soft: #55493e;
  --gold: #a9803f;
  --gold-deep: #8a6a30;
  --gold-pale: #e7d4ab;
  --border: #e3d7c1;
  --shadow: 0 10px 30px rgba(42, 36, 32, 0.08);
  --shadow-soft: 0 4px 14px rgba(42, 36, 32, 0.06);
  --radius: 14px;
  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: "Jost", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

/* The `hidden` attribute must always win over component display rules
   below (e.g. .login-screen / .modal-overlay use display:flex, which
   would otherwise override the browser's default [hidden]{display:none}
   since author rules beat UA rules regardless of selector order). */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ivory);
  color: var(--charcoal);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

body.modal-open {
  overflow: hidden;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input {
  font-family: inherit;
}

/* -----------------------------------------------------------------
   LOGIN
   ----------------------------------------------------------------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 15%, rgba(169, 128, 63, 0.10), transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(169, 128, 63, 0.08), transparent 50%),
    var(--ivory);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 36px;
  text-align: center;
}

.login-eyebrow {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.login-title {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 34px;
  color: var(--charcoal);
}

.login-copy {
  margin: 0 0 24px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--charcoal-soft);
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#login-password {
  padding: 13px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--ivory);
  font-size: 15px;
  text-align: center;
  outline: none;
}

#login-password:focus {
  border-color: var(--gold);
}

#login-form button {
  padding: 13px 16px;
  border-radius: 999px;
  border: none;
  background: var(--charcoal);
  color: var(--ivory);
  font-size: 14px;
  letter-spacing: 0.03em;
  transition: background 0.2s ease;
}

#login-form button:hover {
  background: var(--gold-deep);
}

.login-error {
  color: #a63d3d;
  font-size: 13px;
  margin: 14px 0 0;
}

.login-hint {
  margin: 20px 0 0;
  font-size: 11.5px;
  color: #9c9082;
  line-height: 1.5;
}

/* -----------------------------------------------------------------
   HEADER / FILTER BAR
   ----------------------------------------------------------------- */
.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 36px 40px 20px;
  border-bottom: 1px solid var(--border);
}

.brand-eyebrow {
  margin: 0 0 2px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.brand-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 32px;
}

.logout-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--charcoal-soft);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.logout-btn:hover {
  border-color: var(--gold);
  color: var(--gold-deep);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  padding: 22px 40px;
  border-bottom: 1px solid var(--border);
  background: var(--ivory-deep);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--charcoal-soft);
  font-size: 13px;
  letter-spacing: 0.02em;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.chip:hover {
  border-color: var(--gold);
  color: var(--charcoal);
}

.chip-active {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: var(--ivory);
}

.chip-metal.chip-active {
  background: var(--gold-deep);
  border-color: var(--gold-deep);
}

.search-group {
  margin-left: auto;
  flex: 1 1 220px;
  min-width: 200px;
}

#search-input {
  width: 100%;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 14px;
  outline: none;
}

#search-input:focus {
  border-color: var(--gold);
}

.results-count {
  margin: 18px 40px 0;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9c9082;
}

.empty-state {
  margin: 60px 40px;
  text-align: center;
  color: var(--charcoal-soft);
  font-size: 15px;
}

/* -----------------------------------------------------------------
   GALLERY GRID
   ----------------------------------------------------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 28px;
  padding: 24px 40px 60px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  outline: none;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.card-body {
  padding: 16px 18px 20px;
}

.card-id {
  margin: 0 0 2px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.card-title {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 21px;
  color: var(--charcoal);
}

.card-category {
  margin: 0;
  font-size: 13px;
  color: var(--charcoal-soft);
}

.card-badge {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--gold-pale);
  color: var(--gold-deep);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* -----------------------------------------------------------------
   SWATCH (shared by gallery cards + modal + turntable)
   ----------------------------------------------------------------- */
.swatch {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.swatch-icon {
  width: 46%;
  height: 46%;
  color: rgba(42, 36, 32, 0.55);
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.35));
}

.swatch-icon svg {
  width: 100%;
  height: 100%;
}

.swatch-metal-tag {
  position: absolute;
  top: 12px;
  left: 14px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(42, 36, 32, 0.55);
}

.swatch-placeholder-note {
  position: absolute;
  bottom: 12px;
  right: 14px;
  font-size: 10px;
  letter-spacing: 0.03em;
  color: rgba(42, 36, 32, 0.4);
  font-style: italic;
}

.swatch-real {
  background: #f2ede6;
}

.swatch-real img,
.swatch-real video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.turntable-frame {
  position: relative;
}

.turntable-spin {
  animation: spin 3.2s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* -----------------------------------------------------------------
   DETAIL MODAL
   ----------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28, 23, 18, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 100;
}

.modal-panel {
  position: relative;
  width: 100%;
  max-width: 860px;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 25px 60px rgba(20, 16, 12, 0.35);
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.85);
  color: var(--charcoal);
  font-size: 22px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

.modal-visual {
  background: var(--ivory-deep);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-swatch-host .swatch {
  border-radius: 12px;
}

.angle-thumbs {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.angle-thumb {
  width: 52px;
  height: 52px;
  border-radius: 8px;
  border: 2px solid transparent;
  padding: 0;
  overflow: hidden;
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.angle-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.angle-thumb-active {
  border-color: var(--gold-deep);
}

.modal-visual-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.metal-tabs {
  display: flex;
  gap: 8px;
}

.metal-tab {
  flex: 1;
  padding: 9px 0;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 13px;
  color: var(--charcoal-soft);
  transition: all 0.15s ease;
}

.metal-tab-active {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: var(--ivory);
}

.turntable-btn {
  padding: 10px 0;
  border-radius: 999px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--gold-deep);
  font-size: 13px;
  transition: background 0.15s ease, color 0.15s ease;
}

.turntable-btn:hover {
  background: var(--gold);
  color: #fff;
}

.modal-info {
  padding: 40px 34px 34px;
  display: flex;
  flex-direction: column;
}

.modal-id {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.modal-title {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 32px;
}

.modal-category {
  margin: 0 0 18px;
  color: var(--charcoal-soft);
  font-size: 14px;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.tag-pill {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--ivory-deep);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--charcoal-soft);
}

.modal-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  margin: 0 0 28px;
  font-size: 13px;
}

.modal-meta dt {
  color: #9c9082;
}

.modal-meta dd {
  margin: 0;
  color: var(--charcoal);
}

.cad-btn {
  margin-top: auto;
  padding: 15px 20px;
  border-radius: 999px;
  border: none;
  background: var(--gold-deep);
  color: #fff;
  font-size: 14.5px;
  letter-spacing: 0.02em;
  transition: background 0.2s ease;
}

.cad-btn:hover {
  background: var(--charcoal);
}

.cad-note {
  margin: 10px 0 0;
  font-size: 11.5px;
  line-height: 1.5;
  color: #9c9082;
}

/* -----------------------------------------------------------------
   RESPONSIVE — phones / tablets
   ----------------------------------------------------------------- */
@media (max-width: 860px) {
  .modal-panel {
    grid-template-columns: 1fr;
    max-height: 94vh;
  }

  .modal-visual {
    padding: 22px;
  }

  .modal-swatch-host .swatch {
    max-width: 320px;
    margin: 0 auto;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 26px 20px 16px;
    align-items: center;
  }

  .brand-title {
    font-size: 26px;
  }

  .filter-bar {
    padding: 16px 20px;
  }

  .search-group {
    flex-basis: 100%;
    margin-left: 0;
  }

  .results-count {
    margin: 16px 20px 0;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    padding: 16px 20px 48px;
  }

  .card-title {
    font-size: 18px;
  }

  .modal-overlay {
    padding: 0;
  }

  .modal-panel {
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    border-radius: 0;
  }
}

@media (max-width: 420px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .login-card {
    padding: 32px 24px;
  }
}