/* css/components.css — Mahābhāṣya Research Archive */

/* ── TAGS ────────────────────────────────────────── */
.tag {
  font-family: var(--font-mono); font-size: 9px; font-weight: 400;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 8px; border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  color: var(--ink-muted); background: var(--bg-subtle);
  display: inline-block; white-space: nowrap;
}
.tag--mb { background: var(--layer-mb-bg); border-color: var(--layer-mb); color: var(--layer-mb); }
.tag--pr { background: var(--layer-pr-bg); border-color: var(--layer-pr); color: var(--layer-pr); }
.tag--ud { background: var(--layer-ud-bg); border-color: var(--layer-ud); color: var(--layer-ud); }
.tag--ch { background: var(--layer-ch-bg); border-color: var(--layer-ch); color: var(--layer-ch); }

/* ── BADGES ─────────────────────────────────────── */
.badge {
  font-family: var(--font-mono); font-size: 9px; font-weight: 400;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 10px; border-radius: var(--radius-pill);
  display: inline-block; white-space: nowrap;
}
.badge--a { background: var(--layer-mb-bg); color: var(--badge-a); }
.badge--b { background: var(--layer-pr-bg); color: var(--badge-b); }
.badge--c { background: var(--layer-ud-bg); color: var(--badge-c); }
.badge--d { background: #E2EDDB; color: var(--badge-d); }

/* ── ARCHIVE CARD ────────────────────────────────── */
.page-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  cursor: pointer;
  transition: all 0.22s ease;
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; gap: 12px;
}
.page-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent); opacity: 0;
  transition: opacity 0.22s;
}
.page-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.page-card:hover::before { opacity: 1; }

.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.card-page-num {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.16em; color: var(--accent); padding-top: 3px; white-space: nowrap;
}
.card-topic {
  font-family: var(--font-serif); font-weight: 600;
  font-size: 16px; letter-spacing: -0.01em;
  color: var(--ink); line-height: 1.3; flex: 1;
}
.card-section-label {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-muted);
  border-left: 1px solid var(--line); padding-left: 10px; white-space: nowrap;
}
.card-adhikarana {
  font-family: var(--font-serif); font-size: 14px;
  font-weight: 300; font-style: italic; color: var(--ink-soft); line-height: 1.5;
}
.card-layers { display: flex; gap: 5px; flex-wrap: wrap; }
.card-concepts { display: flex; gap: 5px; flex-wrap: wrap; }
.card-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px; border-top: 1px solid var(--line);
}
.card-arrow { color: var(--accent); transition: transform 0.2s; display: flex; align-items: center; }
.page-card:hover .card-arrow { transform: translateX(4px); }

/* ── ARCHIVE GRID ────────────────────────────────── */
.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* ── SEARCH & FILTER ─────────────────────────────── */
.search-filter-bar {
  display: flex; gap: 10px; align-items: stretch;
  flex-wrap: wrap; margin-bottom: 32px;
}
.search-wrap { flex: 1; min-width: 200px; position: relative; display: flex; align-items: center; }
.search-icon {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  color: var(--ink-muted); pointer-events: none; display: flex; align-items: center;
}
.search-input {
  width: 100%;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; color: var(--ink);
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-md); padding: 11px 12px 11px 38px;
  outline: none; transition: border-color 0.2s;
}
.search-input::placeholder { color: var(--ink-muted); }
.search-input:focus { border-color: var(--accent); }

.filter-select {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--ink-soft);
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-md); padding: 11px 32px 11px 13px;
  outline: none; cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%236A8C72' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 11px center;
  transition: border-color 0.2s; white-space: nowrap;
}
.filter-select:focus { border-color: var(--accent); }

.results-count {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-muted); margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}
.results-count span { color: var(--accent); }

/* Empty state */
.empty-state { padding: 80px 0; text-align: center; }
.empty-state-icon { margin: 0 auto 18px; color: var(--line); }
.empty-state-title { font-family: var(--font-serif); font-size: 20px; font-weight: 600; color: var(--ink-soft); margin-bottom: 6px; }
.empty-state-sub { font-family: var(--font-serif); font-size: 15px; font-style: italic; color: var(--ink-muted); }

/* ── ENTRY PAGE ──────────────────────────────────── */
.entry-back {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-muted); margin-bottom: 32px; transition: color 0.2s;
}
.entry-back:hover { color: var(--accent); }
.entry-back:hover svg { transform: translateX(-3px); }
.entry-back svg { transition: transform 0.2s; }

.entry-header-grid {
  display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: start;
  padding-bottom: 40px; border-bottom: 1px solid var(--line); margin-bottom: 44px;
}
.entry-page-num {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--accent); margin-bottom: 8px;
}
.entry-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(24px,3.5vw,40px); letter-spacing: -0.02em; line-height: 1.1; color: var(--ink); margin-bottom: 10px;
}
.entry-title em { font-style: italic; font-weight: 300; color: var(--accent); }
.entry-adhikarana {
  font-family: var(--font-serif); font-size: 17px; font-weight: 300; font-style: italic; color: var(--ink-soft); margin-bottom: 18px;
}
.entry-meta-grid { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 6px; }
.entry-meta-item { display: flex; flex-direction: column; gap: 3px; }
.entry-meta-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-muted); }
.entry-meta-val { font-family: var(--font-serif); font-size: 14px; font-weight: 300; color: var(--ink-soft); }
.entry-badges { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.entry-layers { display: flex; gap: 5px; flex-wrap: wrap; justify-content: flex-end; }

/* ── ARGUMENT MAP ────────────────────────────────── */
.argument-map {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 28px 32px; margin-bottom: 44px;
  border-left: 3px solid var(--accent);
}
.argument-map-title {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 24px;
  display: flex; align-items: center; gap: 10px;
}
.argument-map-title::after { content: ''; flex: 1; height: 1px; background: var(--accent-soft); }

.argument-map-grid { display: flex; flex-direction: column; }
.arg-row { display: grid; grid-template-columns: 130px 1fr; gap: 0; position: relative; }
.arg-row:not(:last-child)::after {
  content: '';
  position: absolute; left: 12px; top: 28px;
  width: 1px; height: calc(100% - 4px); background: var(--accent-soft);
}
.arg-label-col { padding: 14px 16px 14px 0; display: flex; align-items: flex-start; gap: 10px; }
.arg-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 4px; }
.arg-label-text { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.arg-content {
  padding: 12px 0 12px 20px; border-left: 1px solid var(--accent-soft);
  font-family: var(--font-serif); font-size: 16px; font-weight: 300; line-height: 1.7; color: var(--ink-soft);
}

/* ── LAYER TABS ──────────────────────────────────── */
.tabs-container { margin-bottom: 44px; }
.tab-nav {
  display: flex; gap: 0; border-bottom: 1px solid var(--line);
  overflow-x: auto; margin-bottom: 0;
}
.tab-btn {
  font-family: var(--font-mono); font-size: 10px; font-weight: 400;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-muted); background: transparent; border: none;
  border-bottom: 2px solid transparent; padding: 13px 18px;
  cursor: pointer; transition: color 0.2s, border-color 0.2s;
  display: flex; align-items: center; gap: 7px;
  white-space: nowrap; margin-bottom: -1px;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active--mb { color: var(--layer-mb); border-color: var(--layer-mb); }
.tab-btn.active--pr { color: var(--layer-pr); border-color: var(--layer-pr); }
.tab-btn.active--ud { color: var(--layer-ud); border-color: var(--layer-ud); }
.tab-btn.active--ch { color: var(--layer-ch); border-color: var(--layer-ch); }

.tab-indicator { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.tab-indicator--mb { background: var(--layer-mb); }
.tab-indicator--pr { background: var(--layer-pr); }
.tab-indicator--ud { background: var(--layer-ud); }
.tab-indicator--ch { background: var(--layer-ch); }

.tab-panel { display: none; padding-top: 32px; }
.tab-panel.active { display: block; }

.layer-panel { border-left: 3px solid var(--line); padding-left: 24px; }
.layer-panel--mb { border-color: var(--layer-mb); }
.layer-panel--pr { border-color: var(--layer-pr); }
.layer-panel--ud { border-color: var(--layer-ud); }
.layer-panel--ch { border-color: var(--layer-ch); }

.layer-subsection { margin-bottom: 28px; }
.layer-subsection:last-child { margin-bottom: 0; }
.layer-sublabel {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-muted); margin-bottom: 12px; display: flex; align-items: center; gap: 10px;
}
.layer-sublabel::after { content: ''; flex: 0 0 28px; height: 1px; background: var(--line); }
.layer-text {
  font-family: var(--font-serif); font-size: 17px; font-weight: 300; line-height: 1.85; color: var(--ink-soft);
}
.layer-text--sanskrit {
  font-style: italic; color: var(--ink);
  background: var(--bg-subtle); border-radius: var(--radius-sm);
  padding: 14px 18px; font-size: 16px;
}

/* ── ENTRY SECTIONS ──────────────────────────────── */
.entry-section { margin-bottom: 44px; }
.entry-section-title {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.entry-section-title svg { color: var(--accent); }
.entry-section-title::after { content: ''; flex: 1; height: 1px; background: var(--accent-soft); }

/* Concepts */
.concepts-grid { display: flex; flex-direction: column; gap: 10px; }
.concept-row {
  display: grid; grid-template-columns: 180px 140px 1fr; gap: 14px; align-items: start;
  padding: 14px 18px; border-radius: var(--radius-md);
  background: var(--bg-card); border: 1px solid var(--line);
}
.concept-term { font-family: var(--font-serif); font-size: 15px; font-weight: 400; font-style: italic; color: var(--ink); }
.concept-status {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 3px 8px; border-radius: var(--radius-sm); display: inline-block; align-self: start;
}
.concept-status--new       { background: var(--layer-ud-bg); color: var(--layer-ud); }
.concept-status--developed { background: var(--layer-mb-bg); color: var(--layer-mb); }
.concept-status--clarified { background: var(--layer-pr-bg); color: var(--layer-pr); }
.concept-status--refuted   { background: #FBE8E8; color: #B03030; }
.concept-status--concluded { background: var(--layer-ch-bg); color: var(--layer-ch); }
.concept-status--prev      { background: var(--bg-subtle); color: var(--ink-muted); }
.concept-explanation { font-family: var(--font-serif); font-size: 14px; font-weight: 300; line-height: 1.7; color: var(--ink-soft); }

/* Vocabulary */
.vocab-grid { display: flex; flex-direction: column; }
.vocab-row {
  display: grid; grid-template-columns: 200px 1fr; gap: 14px;
  padding: 11px 0; border-bottom: 1px solid var(--line);
}
.vocab-row:last-child { border-bottom: none; }
.vocab-term { font-family: var(--font-serif); font-size: 15px; font-weight: 400; font-style: italic; color: var(--ink); }
.vocab-meaning { font-family: var(--font-serif); font-size: 15px; font-weight: 300; color: var(--ink-soft); line-height: 1.6; }

/* Continuous Malayalam */
.malayalam-block {
  background: var(--bg-card); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: var(--radius-lg); padding: 28px 32px;
  font-family: var(--font-serif); font-size: 17px; font-weight: 300; line-height: 1.9; color: var(--ink-soft);
}

/* Traditional Notes */
.notes-list { display: flex; flex-direction: column; gap: 10px; }
.note-item {
  padding: 14px 18px; border-radius: var(--radius-md);
  background: var(--bg-card); border: 1px solid var(--line); border-left: 3px solid var(--accent-mid);
}
.note-type { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 5px; }
.note-text { font-family: var(--font-serif); font-size: 15px; font-weight: 300; line-height: 1.7; color: var(--ink-soft); }

/* Cross References */
.xref-grid { display: flex; flex-direction: column; gap: 12px; }
.xref-item { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px 22px; }
.xref-concept { font-family: var(--font-serif); font-size: 15px; font-weight: 400; font-style: italic; color: var(--ink); margin-bottom: 10px; }
.xref-fields { display: flex; flex-direction: column; gap: 5px; }
.xref-field { display: flex; gap: 8px; align-items: baseline; }
.xref-field-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-muted); flex-shrink: 0; min-width: 140px; }
.xref-field-val { font-family: var(--font-serif); font-size: 14px; font-weight: 300; color: var(--ink-soft); line-height: 1.5; }

/* Companion Volume Notes */
.companion-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.companion-tag {
  font-family: var(--font-serif); font-size: 14px; font-style: italic;
  color: var(--accent); background: var(--accent-soft);
  border: 1px solid var(--accent-mid); border-radius: var(--radius-pill); padding: 4px 14px;
}

/* Study Notes */
.study-notes-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.study-col { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px; }
.study-col-title {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-muted); margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line);
}
.study-list { display: flex; flex-direction: column; gap: 7px; }
.study-list-item {
  font-family: var(--font-serif); font-size: 14px; font-weight: 300; line-height: 1.6; color: var(--ink-soft);
  padding-left: 12px; position: relative;
}
.study-list-item::before { content: '–'; position: absolute; left: 0; color: var(--accent-mid); }

/* ── CONCEPTS PAGE ───────────────────────────────── */
.concepts-index-grid { display: flex; flex-direction: column; }
.concept-index-row {
  display: grid; grid-template-columns: 200px 1fr auto; gap: 20px; align-items: center;
  padding: 16px 8px; border-bottom: 1px solid var(--line);
  cursor: pointer; transition: all 0.15s; border-radius: var(--radius-sm);
}
.concept-index-row:first-child { border-top: 1px solid var(--line); }
.concept-index-row:hover { background: var(--accent-soft); padding-left: 16px; }
.concept-index-term { font-family: var(--font-serif); font-size: 17px; font-style: italic; color: var(--ink); }
.concept-index-pages { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.08em; color: var(--ink-muted); }
.concept-occurrences { display: flex; gap: 5px; flex-wrap: wrap; }
.concept-occ-badge {
  font-family: var(--font-mono); font-size: 9px; padding: 2px 7px;
  border-radius: var(--radius-sm); background: var(--bg-subtle); color: var(--ink-muted);
  border: 1px solid var(--line); text-decoration: none;
}
.concept-occ-badge:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* ── TEXTS PAGE ──────────────────────────────────── */
.texts-grid { display: flex; flex-direction: column; }
.text-item {
  display: grid; grid-template-columns: 72px 1fr 150px; gap: 24px; align-items: start;
  padding: 28px 0; border-bottom: 1px solid var(--line);
}
.text-item:first-child { border-top: 1px solid var(--line); }
.text-num { font-family: var(--font-serif); font-size: 22px; font-weight: 300; color: var(--accent-mid); text-align: right; padding-top: 4px; }
.text-name { font-family: var(--font-serif); font-size: 20px; font-style: italic; color: var(--ink); margin-bottom: 6px; }
.text-author { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.text-desc { font-family: var(--font-serif); font-size: 15px; font-weight: 300; line-height: 1.75; color: var(--ink-soft); }
.text-role {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 4px 10px; border-radius: var(--radius-pill); border: 1px solid var(--line);
  color: var(--ink-muted); align-self: start; text-align: center;
}

/* ── ABOUT PAGE ──────────────────────────────────── */
.about-body p { font-family: var(--font-serif); font-size: 17px; font-weight: 300; line-height: 1.85; color: var(--ink-soft); margin-bottom: 18px; }
.about-body h3 { font-family: var(--font-serif); font-weight: 600; font-size: 19px; letter-spacing: -0.01em; color: var(--ink); margin: 32px 0 10px; }

/* ── SKELETON ────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--line) 25%, var(--bg-subtle) 50%, var(--line) 75%);
  background-size: 200% 100%; animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* ── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 900px) {
  .concept-row { grid-template-columns: 1fr 1fr; }
  .concept-row .concept-explanation { grid-column: 1 / -1; }
  .study-notes-grid { grid-template-columns: 1fr; }
  .text-item { grid-template-columns: 48px 1fr; }
  .text-role { display: none; }
  .entry-header-grid { grid-template-columns: 1fr; }
  .entry-badges { align-items: flex-start; }
  .entry-layers { justify-content: flex-start; }
  .arg-row { grid-template-columns: 100px 1fr; }
  .vocab-row { grid-template-columns: 1fr; gap: 3px; }
  .concept-index-row { grid-template-columns: 1fr auto; }
  .concept-index-pages { display: none; }
}
@media (max-width: 600px) {
  .archive-grid { grid-template-columns: 1fr; }
  .layer-panel { padding-left: 14px; }
  .argument-map { padding: 18px; }
  .malayalam-block { padding: 18px 20px; }
  .concept-row { grid-template-columns: 1fr; }
  .search-filter-bar { flex-direction: column; }
  .xref-field { flex-direction: column; gap: 1px; }
  .xref-field-label { min-width: unset; }
}