/* ════════════════════════════════════════════════════════════
   Sthāpatyaveda Studio — Stylesheet (sandstone palette)
   ════════════════════════════════════════════════════════════ */

:root {
  --st-gold: #c9a06a;
  --st-gold-hi: #e8c090;
  --st-bg-deep: #1f1508;
  --st-bg-card: #2a1e10;
  --st-bg-panel: #3a2818;
  --st-border: #5a4028;
  --st-border-bright: #8a6440;
  --st-text: #f0e2c8;
  --st-text-muted: #c0a880;
  --st-ok: #4a8f58;
  --st-danger: #c0604a;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; min-height: 100%; }

body {
  background: var(--st-bg-deep);
  color: var(--st-text);
  font-family: 'Noto Serif', Georgia, serif;
  font-size: 15px;
  line-height: 1.55;
  overflow-x: hidden;
  padding-bottom: 120px;
}

.font-mono { font-family: 'JetBrains Mono', 'Cascadia Code', monospace; }
.indic { font-family: 'Noto Sans Devanagari', 'Noto Serif', serif; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--st-bg-deep); }
::-webkit-scrollbar-thumb { background: var(--st-border); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--st-gold); }

.glass {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(31, 21, 8, 0.92);
}

.st-container { max-width: 1280px; margin: 0 auto; padding: 1rem; }

.st-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--st-border);
  padding: 0.6rem 1rem;
}

.st-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.st-brand {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--st-gold-hi);
  font-weight: 600;
  text-transform: uppercase;
}

.st-nav { display: flex; gap: 0.4rem; flex-wrap: wrap; }

.st-nav-btn {
  padding: 0.4rem 0.85rem;
  font-size: 0.72rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--st-bg-panel);
  color: var(--st-gold-hi);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.st-nav-btn:hover { background: #4a341e; }

.st-nav-btn.active {
  background: var(--st-gold);
  color: #1f1508;
  font-weight: 600;
}

.st-btn {
  padding: 0.5rem 1rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--st-border);
  background: var(--st-bg-panel);
  color: var(--st-text);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s ease;
}

.st-btn:hover { border-color: var(--st-gold); background: #4a341e; }
.st-btn:active { transform: scale(0.97); }

.st-btn-primary {
  background: var(--st-gold);
  color: #1f1508;
  border-color: var(--st-gold);
}
.st-btn-primary:hover { background: #d8b078; }

.st-panel {
  background: var(--st-bg-panel);
  border: 1px solid var(--st-border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.st-panel-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--st-gold-hi);
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.st-select {
  background: var(--st-bg-deep);
  border: 1px solid var(--st-border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  color: var(--st-text);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}
.st-select:focus { border-color: var(--st-gold); outline: none; }

.st-input {
  background: var(--st-bg-deep);
  border: 1px solid var(--st-border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  color: var(--st-text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  width: 100%;
  max-width: 200px;
}
.st-input:focus { border-color: var(--st-gold); outline: none; }

.st-badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.62rem;
  border-radius: 999px;
  background: rgba(201, 160, 106, 0.15);
  border: 1px solid rgba(201, 160, 106, 0.5);
  color: var(--st-gold-hi);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
}

/* ─── Māndala grid ─────────────────────────────────────────── */

.st-mandala-wrap {
  display: flex;
  justify-content: center;
  padding: 1rem 0;
}

.st-mandala {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 2px;
  width: 100%;
  max-width: 640px;
  aspect-ratio: 1 / 1;
  background: var(--st-border);
  border: 2px solid var(--st-gold);
  border-radius: 8px;
  padding: 4px;
}

.st-pada {
  background: var(--st-bg-card);
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2px;
  font-family: inherit;
  color: var(--st-text);
  font-size: 0.55rem;
  line-height: 1.1;
  text-align: center;
  transition: all 0.12s ease;
  border-radius: 3px;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
}

.st-pada:hover {
  background: var(--st-bg-panel);
  transform: scale(1.06);
  z-index: 2;
  box-shadow: 0 0 8px rgba(201, 160, 106, 0.5);
}

.st-pada.selected {
  background: var(--st-gold);
  color: #1f1508;
  font-weight: 700;
}

.st-pada .st-pada-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  opacity: 0.6;
}

.st-pada .st-pada-deity {
  font-weight: 600;
  font-size: 0.58rem;
  word-break: break-word;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Direction tinting on the grid */
.st-pada.dir-n  { background: #2a2e38; }
.st-pada.dir-ne { background: #2a3220; }
.st-pada.dir-e  { background: #38301c; }
.st-pada.dir-se { background: #38241a; }
.st-pada.dir-s  { background: #38281c; }
.st-pada.dir-sw { background: #34281e; }
.st-pada.dir-w  { background: #2a2838; }
.st-pada.dir-nw { background: #2e2a38; }
.st-pada.dir-c  { background: #3a2e14; }

/* Selected state overrides direction tint */
.st-pada.selected,
.st-pada.selected.dir-n,
.st-pada.selected.dir-ne,
.st-pada.selected.dir-e,
.st-pada.selected.dir-se,
.st-pada.selected.dir-s,
.st-pada.selected.dir-sw,
.st-pada.selected.dir-w,
.st-pada.selected.dir-nw,
.st-pada.selected.dir-c {
  background: var(--st-gold);
  color: #1f1508;
}

/* ─── Pada detail side panel ──────────────────────────────── */

.st-pada-detail {
  background: var(--st-bg-card);
  border: 1px solid var(--st-gold);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
}

.st-pada-detail-head {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.st-pada-detail-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--st-gold-hi);
}

.st-pada-detail-iast {
  font-family: 'JetBrains Mono', monospace;
  font-style: italic;
  color: var(--st-text-muted);
  font-size: 0.85rem;
}

.st-pada-detail-dev {
  font-size: 1.1rem;
  color: var(--st-gold);
}

.st-pada-detail-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.85rem;
  line-height: 1.5;
}

.st-pada-detail-row:last-child { border-bottom: none; }

.st-pada-detail-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--st-text-muted);
  padding-top: 3px;
  font-weight: 600;
}

/* ─── Compass grid ─────────────────────────────────────────── */

.st-compass {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, auto);
  gap: 0.75rem;
  max-width: 900px;
  margin: 1rem auto;
}

.st-dir-card {
  background: var(--st-bg-card);
  border: 2px solid var(--st-border);
  border-radius: 12px;
  padding: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 130px;
  display: flex;
  flex-direction: column;
}

.st-dir-card:hover {
  border-color: var(--st-gold);
  transform: translateY(-2px);
}

.st-dir-card.selected {
  border-color: var(--st-gold);
  box-shadow: 0 0 20px rgba(201, 160, 106, 0.3);
}

.st-dir-card.facing {
  border-color: var(--st-ok);
  box-shadow: 0 0 20px rgba(74, 143, 88, 0.4);
}

.st-dir-card.center {
  background: linear-gradient(135deg, #3a2e14, #2a1e10);
  border-color: var(--st-gold);
}

.st-dir-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.st-dir-iast {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--st-text-muted);
  font-style: italic;
  margin-bottom: 0.4rem;
}

.st-dir-dev {
  font-size: 0.9rem;
  color: var(--st-gold-hi);
  margin-bottom: 0.4rem;
}

.st-dir-meta {
  font-size: 0.68rem;
  color: var(--st-text-muted);
  line-height: 1.5;
}

.st-dir-meta strong {
  color: var(--st-text);
  font-weight: 600;
}

/* Compass grid positions */
.st-compass > .pos-nw { grid-column: 1; grid-row: 1; }
.st-compass > .pos-n  { grid-column: 2; grid-row: 1; }
.st-compass > .pos-ne { grid-column: 3; grid-row: 1; }
.st-compass > .pos-w  { grid-column: 1; grid-row: 2; }
.st-compass > .pos-c  { grid-column: 2; grid-row: 2; }
.st-compass > .pos-e  { grid-column: 3; grid-row: 2; }
.st-compass > .pos-sw { grid-column: 1; grid-row: 3; }
.st-compass > .pos-s  { grid-column: 2; grid-row: 3; }
.st-compass > .pos-se { grid-column: 3; grid-row: 3; }

.st-dir-detail {
  background: var(--st-bg-card);
  border: 1px solid var(--st-gold);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
}

.st-dir-detail h4 {
  margin: 0.75rem 0 0.35rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--st-gold-hi);
}

.st-dir-detail ul {
  margin: 0;
  padding-left: 1.4rem;
  line-height: 1.7;
  font-size: 0.85rem;
}

/* ─── Māna converter ───────────────────────────────────────── */

.st-mana-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 768px) {
  .st-mana-grid { grid-template-columns: 1fr; }
}

.st-converter {
  display: flex;
  gap: 0.5rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.st-converter-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.st-converter-label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--st-text-muted);
  font-weight: 600;
}

.st-converter-result {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--st-gold-hi);
  text-align: center;
  padding: 0.75rem 0;
  border-top: 1px solid var(--st-border);
  border-bottom: 1px solid var(--st-border);
  margin: 0.75rem 0;
}

.st-converter-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin-top: 0.5rem;
}

.st-converter-table th,
.st-converter-table td {
  padding: 0.5rem 0.65rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.st-converter-table th {
  color: var(--st-gold-hi);
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
}

.st-proportions-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.st-proportions-table th,
.st-proportions-table td {
  padding: 0.55rem 0.65rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.st-proportions-table th {
  color: var(--st-gold-hi);
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
}

.st-proportions-table td.hasta {
  font-family: 'JetBrains Mono', monospace;
  color: var(--st-gold);
  font-weight: 600;
  white-space: nowrap;
}

.st-proportions-table td.note {
  color: var(--st-text-muted);
  font-size: 0.78rem;
}

/* ─── About sections ───────────────────────────────────────── */

.st-styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.st-style-card {
  background: var(--st-bg-card);
  border: 1px solid var(--st-border);
  border-left: 3px solid var(--st-gold);
  border-radius: 10px;
  padding: 1rem;
}

.st-style-head {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  margin-bottom: 0.35rem;
}

.st-style-name { font-size: 1.1rem; font-weight: 700; }
.st-style-dev  { font-size: 0.95rem; color: var(--st-gold-hi); }
.st-style-region {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--st-text-muted);
  margin-bottom: 0.5rem;
}
.st-style-body { font-size: 0.82rem; line-height: 1.55; }
.st-style-body strong { color: var(--st-gold-hi); }
.st-style-body ul {
  margin: 0.4rem 0 0;
  padding-left: 1.4rem;
  line-height: 1.65;
}

.st-verses { display: grid; gap: 0.75rem; }

.st-verse {
  background: var(--st-bg-card);
  border-left: 3px solid var(--st-gold);
  border-radius: 6px;
  padding: 0.85rem 1rem;
}

.st-verse-dev {
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 0.4rem;
}

.st-verse-iast {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--st-gold-hi);
  font-style: italic;
  margin-bottom: 0.4rem;
}

.st-verse-trans {
  font-size: 0.85rem;
  color: var(--st-text);
  line-height: 1.55;
}

.st-verse-source {
  font-size: 0.68rem;
  color: var(--st-text-muted);
  margin-top: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
}

/* ─── External link + footer ──────────────────────────────── */

.st-external-link {
  position: fixed;
  top: 0.6rem;
  right: 1rem;
  z-index: 25;
  font-size: 0.72rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--st-bg-panel);
  border: 1px solid var(--st-border);
  color: var(--st-gold-hi);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
}

.st-external-link:hover { border-color: var(--st-gold); color: var(--st-gold); }

.st-footer-fixed {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(31, 21, 8, 0.94);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--st-border);
  padding: 0.6rem 1rem;
  z-index: 30;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 0.72rem;
  color: var(--st-text-muted);
}

/* ─── Responsive ───────────────────────────────────────────── */

@media (max-width: 640px) {
  .st-nav { flex-wrap: wrap; }
  .st-mandala { font-size: 0.4rem; }
  .st-pada .st-pada-deity { font-size: 0.42rem; }
  .st-pada .st-pada-num { font-size: 0.38rem; }
  .st-compass {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }
  .st-compass > .pos-nw,
  .st-compass > .pos-n,
  .st-compass > .pos-ne,
  .st-compass > .pos-w,
  .st-compass > .pos-c,
  .st-compass > .pos-e,
  .st-compass > .pos-sw,
  .st-compass > .pos-s,
  .st-compass > .pos-se { grid-column: auto; grid-row: auto; }
  .st-styles-grid { grid-template-columns: 1fr; }
  body { padding-bottom: 140px; }
  .st-pada-detail-row { grid-template-columns: 80px 1fr; font-size: 0.8rem; }
  .st-converter { flex-direction: column; align-items: stretch; }
}