/* ── Reset & Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0f1117;
  --bg2:         #1a1d27;
  --bg3:         #22263a;
  --surface:     #1e2235;
  --surface2:    #252a40;
  --border:      #2e3350;
  --border2:     #3d4468;
  --accent:      #4f7fff;
  --accent2:     #6b9aff;
  --accent-glow: rgba(79,127,255,.18);
  --gold:        #f0b429;
  --gold-dim:    rgba(240,180,41,.15);
  --green:       #22c55e;
  --green-dim:   rgba(34,197,94,.15);
  --red:         #f87171;
  --red-dim:     rgba(248,113,113,.15);
  --orange:      #fb923c;
  --purple:      #a78bfa;
  --text:        #e2e8f0;
  --text2:       #94a3b8;
  --text3:       #64748b;
  --radius:      10px;
  --radius-lg:   16px;
  --shadow:      0 4px 24px rgba(0,0,0,.4);
  --font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:        'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}

html { font-size: 15px; scroll-behavior: smooth; height: 100%; }
body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; height: 100vh; display: flex; flex-direction: column; overflow: hidden; }

/* ── Header ────────────────────────────────────────────────────────────── */
.site-header { background: var(--bg2); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1440px; margin: 0 auto; padding: .75rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.header-logo { display: flex; align-items: center; gap: .85rem; }
.logo-icon { font-size: 1.8rem; line-height: 1; }
.header-logo h1 { font-size: 1.15rem; font-weight: 700; color: var(--text); }
.header-logo p { font-size: .75rem; color: var(--text3); }
.header-meta { display: flex; gap: .5rem; align-items: center; }

/* ── Badges ──────────────────────────────────────────────────────────── */
.badge { font-size: .7rem; font-weight: 600; padding: .25rem .65rem; border-radius: 999px; letter-spacing: .04em; }
.badge-new    { background: var(--gold-dim);  color: var(--gold);   border: 1px solid rgba(240,180,41,.3); }
.badge-info   { background: var(--accent-glow); color: var(--accent2); border: 1px solid rgba(79,127,255,.25); }
.badge-same   { background: var(--green-dim); color: var(--green);  border: 1px solid rgba(34,197,94,.3);  }
.badge-mod    { background: var(--gold-dim);  color: var(--gold);   border: 1px solid rgba(240,180,41,.3); }
.badge-newp   { background: rgba(167,139,250,.15); color: var(--purple); border: 1px solid rgba(167,139,250,.3); }
.badge-removed{ background: var(--red-dim);   color: var(--red);    border: 1px solid rgba(248,113,113,.3); }
.badge-unclear{ background: var(--surface);   color: var(--text3);  border: 1px solid var(--border); }

/* ── Search section ──────────────────────────────────────────────────── */
.search-section { background: linear-gradient(160deg, #151829 0%, #1a2040 100%); padding: 2rem 1.5rem 1rem; border-bottom: 1px solid var(--border); }
.search-container { position: relative; max-width: 760px; margin: 0 auto; }
.search-wrap { display: flex; align-items: center; background: var(--surface); border: 1.5px solid var(--border2); border-radius: var(--radius-lg); padding: .6rem 1rem; gap: .6rem; transition: border-color .2s, box-shadow .2s; }
.search-wrap:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.search-icon { font-size: 1.1rem; flex-shrink: 0; color: var(--text3); }
#search-input { flex: 1; background: none; border: none; outline: none; color: var(--text); font-size: .95rem; font-family: var(--font); }
#search-input::placeholder { color: var(--text3); }
.search-clear { background: none; border: none; color: var(--text3); cursor: pointer; font-size: 1rem; padding: .1rem .3rem; border-radius: 4px; transition: color .15s; line-height: 1; }
.search-clear:hover { color: var(--text); }

.typeahead-dropdown { position: absolute; top: calc(100% + 6px); left: 0; right: 0; background: var(--surface); border: 1px solid var(--border2); border-radius: var(--radius); box-shadow: var(--shadow); z-index: 200; list-style: none; overflow: hidden; }
.typeahead-dropdown li { padding: .65rem 1rem; cursor: pointer; display: flex; align-items: center; gap: .6rem; font-size: .88rem; color: var(--text2); transition: background .12s; }
.typeahead-dropdown li:hover, .typeahead-dropdown li.active { background: var(--bg3); color: var(--text); }
.ta-num { background: var(--accent-glow); color: var(--accent2); border-radius: 4px; padding: .1rem .4rem; font-size: .78rem; font-weight: 600; white-space: nowrap; }

.search-hint { text-align: center; margin-top: .75rem; font-size: .8rem; color: var(--text3); display: flex; justify-content: center; align-items: center; gap: .4rem; flex-wrap: wrap; }
.hint-chip { background: var(--bg3); border: 1px solid var(--border); color: var(--text2); padding: .2rem .7rem; border-radius: 999px; font-size: .78rem; cursor: pointer; transition: all .15s; }
.hint-chip:hover { border-color: var(--accent); color: var(--accent2); background: var(--accent-glow); }

/* ── Main layout ─────────────────────────────────────────────────────── */
main { flex: 1; display: flex; min-height: 0; overflow: hidden; }
.main-content { display: flex; flex: 1; width: 100%; min-height: 0; overflow: hidden; }

/* ── Sidebar ─────────────────────────────────────────────────────────── */
.sidebar { width: 270px; min-width: 270px; background: var(--bg2); border-right: 1px solid var(--border); display: flex; flex-direction: column; transition: width .25s, min-width .25s; overflow: hidden; height: 100%; flex-shrink: 0; }
.sidebar.collapsed { width: 42px; min-width: 42px; }
.sidebar-header { padding: .7rem .8rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); flex-shrink: 0; font-size: .8rem; font-weight: 600; color: var(--text2); white-space: nowrap; overflow: hidden; }
.sidebar-toggle-btn { background: none; border: none; color: var(--text3); cursor: pointer; font-size: .8rem; padding: .2rem; border-radius: 4px; transition: color .15s, transform .25s; }
.sidebar-toggle-btn:hover { color: var(--text); }
.sidebar.collapsed .sidebar-toggle-btn { transform: rotate(180deg); }
.sidebar.collapsed .sidebar-header span { display: none; }
.sidebar-inner { flex: 1; overflow-y: auto; padding: .5rem 0; }
.sidebar.collapsed .sidebar-inner { display: none; }

.chapter-group {}
.chapter-label { padding: .4rem .9rem; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-item { display: flex; align-items: center; gap: .55rem; padding: .45rem .9rem; cursor: pointer; transition: background .12s; border-left: 2px solid transparent; }
.sidebar-item:hover { background: var(--bg3); }
.sidebar-item.active { background: var(--accent-glow); border-left-color: var(--accent); }
.si-num { font-size: .72rem; font-weight: 700; color: var(--accent2); min-width: 22px; }
.si-title { font-size: .8rem; color: var(--text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-item.active .si-title { color: var(--text); }
.sidebar-loading { padding: 1rem; color: var(--text3); font-size: .82rem; text-align: center; }

/* ── Result area ─────────────────────────────────────────────────────── */
.result-area { flex: 1; overflow-y: auto; padding: 1.5rem; min-width: 0; height: 100%; display: flex; flex-direction: column; }

/* ── Welcome card ────────────────────────────────────────────────────── */
.welcome-card { max-width: 680px; margin: auto; text-align: center; display: flex; flex-direction: column; justify-content: center; min-height: 100%; padding: 2rem 1rem; }
.welcome-icon { font-size: 3rem; margin-bottom: .75rem; }
.welcome-card h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: .75rem; }
.welcome-tagline { font-family: 'Roboto', sans-serif; font-size: 2.2rem; font-weight: 700; color: var(--text); line-height: 1.3; margin: 0; letter-spacing: .02em; }

.welcome-cta { color: var(--text3); font-size: .85rem; margin-bottom: 1.75rem; }
.welcome-disclaimer { text-align: left; margin-top: 2.5rem; }
.welcome-disclaimer p { color: var(--text3); font-size: .75rem; line-height: 1.7; margin: 0; }
.disclaimer-heading { display: block; color: var(--text3); font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .4rem; }

/* ── Search results ──────────────────────────────────────────────────── */
.results-heading { font-size: .9rem; color: var(--text2); margin-bottom: 1rem; padding-bottom: .5rem; border-bottom: 1px solid var(--border); }
.result-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: .75rem; cursor: pointer; transition: border-color .15s, background .15s; display: flex; align-items: flex-start; gap: 1rem; }
.result-card:hover { border-color: var(--accent); background: var(--surface2); }
.rc-num { background: var(--accent-glow); color: var(--accent2); border-radius: 6px; padding: .4rem .7rem; font-weight: 700; font-size: .95rem; flex-shrink: 0; min-width: 48px; text-align: center; }
.rc-body { flex: 1; min-width: 0; }
.rc-title { font-size: .95rem; font-weight: 600; color: var(--text); margin-bottom: .2rem; }
.rc-chapter { font-size: .75rem; color: var(--text3); margin-bottom: .4rem; }
.rc-tags { display: flex; gap: .35rem; flex-wrap: wrap; }
.tag { background: var(--bg3); color: var(--text3); border: 1px solid var(--border); padding: .15rem .55rem; border-radius: 999px; font-size: .72rem; }

/* ── Section detail ──────────────────────────────────────────────────── */
.section-detail { max-width: 900px; margin: 0 auto; }

.sec-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; flex-wrap: wrap; gap: .5rem; }
.sec-nav-btns { display: flex; gap: .5rem; }
.btn { display: inline-flex; align-items: center; gap: .4rem; padding: .45rem .9rem; border-radius: var(--radius); font-size: .82rem; font-weight: 500; cursor: pointer; transition: all .15s; border: 1px solid transparent; font-family: var(--font); }
.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text2); }
.btn-ghost:hover { border-color: var(--border2); color: var(--text); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent2); }
.btn-sm { padding: .3rem .65rem; font-size: .76rem; }

.sec-header { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; margin-bottom: 1rem; }
.sec-header-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.sec-number-badge { background: linear-gradient(135deg, var(--accent) 0%, #7c3aed 100%); color: #fff; font-size: 1.1rem; font-weight: 800; padding: .5rem 1rem; border-radius: var(--radius); flex-shrink: 0; }
.sec-header-info { flex: 1; min-width: 0; }
.sec-title { font-size: 1.3rem; font-weight: 700; color: var(--text); margin-bottom: .35rem; }
.sec-chapter { font-size: .78rem; color: var(--text3); margin-bottom: .6rem; }
.sec-tags { display: flex; gap: .35rem; flex-wrap: wrap; }

/* ── Tab nav ─────────────────────────────────────────────────────────── */
.tab-nav { display: flex; gap: 0; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 1rem; flex-wrap: wrap; }
.tab-btn { padding: .6rem 1.1rem; font-size: .82rem; font-weight: 500; background: none; border: none; cursor: pointer; transition: all .15s; white-space: nowrap; font-family: var(--font); border-bottom: 2px solid transparent; }

/* Primary group — blue/accent (Bare Act, Simplified Section, Memory Lane) */
.tab-primary { color: #7aa4ff; }
.tab-primary:hover { color: var(--accent2); background: var(--accent-glow); }
.tab-primary.active { color: #fff; background: rgba(79,127,255,.2); border-bottom-color: var(--accent2); }

/* Secondary group — amber (ITA 1961 Mapping, Keywords) */
.tab-secondary { color: #c9973a; }
.tab-secondary:hover { color: var(--gold); background: var(--gold-dim); }
.tab-secondary.active { color: var(--gold); background: rgba(240,180,41,.12); border-bottom-color: var(--gold); }

/* Divider between groups */
.tab-secondary:first-of-type { border-left: 1px solid var(--border2); margin-left: .25rem; }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Bare text ───────────────────────────────────────────────────────── */
.bare-text-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.bare-text-header { padding: .65rem 1rem; background: var(--bg3); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
.bare-text-header span { font-size: .75rem; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: .06em; }
.bare-text-content { padding: 1.75rem 2rem; font-family: var(--font); font-size: .95rem; line-height: 1.9; color: var(--text); max-height: 70vh; overflow-y: auto; }
.bt-section    { font-weight: 600; color: var(--text); margin-bottom: .9rem; }
.bt-subsection { padding-left: 1.75rem; margin-bottom: .65rem; color: var(--text); }
.bt-clause     { padding-left: 3.5rem; margin-bottom: .5rem; color: var(--text2); }
.bt-subclause  { padding-left: 5.25rem; margin-bottom: .5rem; color: var(--text2); }
.bt-deepclause { padding-left: 7rem;   margin-bottom: .5rem; color: var(--text2); }
.bt-proviso    { padding-left: 1.75rem; margin: .75rem 0 .75rem 1.75rem; padding: .5rem 1rem; border-left: 3px solid var(--border2); color: var(--text2); font-style: italic; }
.bt-text       { margin-bottom: .65rem; }

/* ── Bare act tables (pipe-extracted from PDF) ───────────────────────── */
.bare-act-table-wrap {
  margin: .8rem 0 1.2rem 0;
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border2);
  -webkit-overflow-scrolling: touch;
}
.bare-act-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
  line-height: 1.55;
}
.bare-act-table thead tr {
  background: var(--bg3);
}
.bare-act-table th {
  padding: .5rem .85rem;
  text-align: left;
  color: var(--accent2);
  font-weight: 700;
  font-size: .73rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  border-bottom: 2px solid var(--border2);
  border-right: 1px solid var(--border);
  white-space: nowrap;
}
.bare-act-table th:last-child,
.bare-act-table td:last-child { border-right: none; }
.bare-act-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .12s;
}
.bare-act-table tbody tr:last-child { border-bottom: none; }
.bare-act-table tbody tr:hover { background: var(--surface2); }
.bare-act-table td {
  padding: .5rem .85rem;
  color: var(--text);
  vertical-align: top;
  border-right: 1px solid var(--border);
}
.bare-act-table tbody tr:nth-child(even) { background: rgba(30,34,53,.45); }
/* First col (Sl. No.) — narrow, muted, centered */
.bare-act-table td:first-child {
  color: var(--text3);
  font-weight: 700;
  font-size: .82rem;
  white-space: nowrap;
  text-align: center;
  min-width: 2.8rem;
}
/* Reference-tables card inside Simplified tab */
.ref-tables-card {
  margin-top: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.ref-tables-card-header {
  padding: .6rem 1rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: .45rem;
  font-size: .78rem;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.ref-tables-card-body {
  padding: 1rem 1.25rem;
}

/* ── Definition tooltips ─────────────────────────────────────────────── */
.defined-term {
  border-bottom: 1.5px dotted var(--accent2);
  cursor: pointer;
  color: inherit;
  transition: background .12s;
}
.defined-term:hover {
  background: rgba(79,127,255,.1);
  border-radius: 2px;
}
/* Local definition — defined in this very section, overrides §2 */
.defined-term.local-def {
  border-bottom: 1.5px dotted var(--accent);
  color: var(--accent);
}
.defined-term.local-def:hover {
  background: rgba(255,160,50,.1);
}
/* Badge shown in tooltip source line for local defs */
.dt-local-badge {
  display: inline-block;
  font-size: .6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: var(--accent);
  color: #000;
  padding: 0 .35rem;
  border-radius: 3px;
  margin-left: .4rem;
  vertical-align: middle;
  opacity: .85;
}

#def-tooltip {
  position: absolute;
  z-index: 600;
  width: 320px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  padding: .85rem 1rem;
  pointer-events: none;
}
#def-tooltip[hidden] { display: none; }
.dt-source {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--accent2);
  margin-bottom: .3rem;
}
.dt-term {
  font-size: .92rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .45rem;
}
.dt-text {
  font-size: .8rem;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: .5rem;
}
.dt-hint {
  font-size: .68rem;
  color: var(--text3);
  font-style: italic;
  border-top: 1px solid var(--border);
  padding-top: .35rem;
  margin-top: .35rem;
}

/* ── Back navigation pill ────────────────────────────────────────────── */
.back-nav { margin-bottom: 1rem; }
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(79,127,255,.1);
  border: 1px solid rgba(79,127,255,.3);
  color: var(--accent2);
  border-radius: 999px;
  padding: .35rem 1rem;
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  font-family: var(--font);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-back:hover {
  background: rgba(79,127,255,.22);
  border-color: var(--accent2);
  color: var(--text);
}

/* ── Clause highlight (flash on definition navigation) ───────────────── */
@keyframes clauseFlash {
  0%   { background: rgba(240, 180, 41, .5); border-radius: 4px; }
  60%  { background: rgba(240, 180, 41, .2); }
  100% { background: transparent; }
}
.clause-highlight {
  animation: clauseFlash 2.5s ease-out forwards;
}

/* ── Inline rule link ────────────────────────────────────────────────── */
.rule-inline-link {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  background: rgba(79,127,255,.12);
  color: var(--accent2);
  border: 1px solid rgba(79,127,255,.3);
  border-radius: 4px;
  padding: .05rem .45rem;
  font-size: .72rem;
  font-weight: 600;
  text-decoration: none;
  margin-left: .4rem;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
  vertical-align: middle;
}
.rule-inline-link:hover {
  background: rgba(79,127,255,.25);
  border-color: var(--accent2);
}

/* ── Rule modal ──────────────────────────────────────────────────────── */
.rule-modal-overlay {
  display: none;  /* hidden by default — shown via .open class */
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  z-index: 500;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem;
  overflow-y: auto;
}
.rule-modal-overlay.open {
  display: flex;
}
.rule-modal {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 780px;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
}
.rm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  gap: 1rem;
  flex-shrink: 0;
}
.rm-header-left { display: flex; align-items: center; gap: .75rem; }
.rm-badge {
  background: rgba(79,127,255,.15);
  color: var(--accent2);
  border: 1px solid rgba(79,127,255,.3);
  border-radius: 5px;
  padding: .2rem .65rem;
  font-size: .78rem;
  font-weight: 700;
  white-space: nowrap;
}
.rm-title { font-size: .95rem; font-weight: 600; color: var(--text); }
.rm-close {
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  cursor: pointer;
  border-radius: 6px;
  padding: .2rem .55rem;
  font-size: .85rem;
  transition: all .15s;
  flex-shrink: 0;
}
.rm-close:hover { background: var(--border); color: var(--text); }

.rm-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}
.rm-section-label {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text3);
  margin-bottom: 1rem;
}
/* Full rule text uses same bt- hierarchy, slightly smaller */
.rm-full-text { font-size: .88rem; line-height: 1.85; margin-bottom: 1.5rem; }
.rm-full-text .bt-section    { font-size: .9rem; }
.rm-full-text .bt-subsection { font-size: .88rem; }
.rm-full-text .bt-clause,
.rm-full-text .bt-subclause,
.rm-full-text .bt-deepclause { font-size: .85rem; }

.rm-summary {
  background: linear-gradient(135deg, rgba(240,180,41,.08), rgba(240,180,41,.03));
  border: 1px solid rgba(240,180,41,.25);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: .9rem 1.1rem;
  font-size: .85rem;
  color: var(--text2);
  line-height: 1.65;
  margin-bottom: 1rem;
}
.rm-summary-label {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--gold);
  margin-bottom: .4rem;
}
.rm-source {
  font-size: .7rem;
  color: var(--text3);
  font-style: italic;
  border-top: 1px dashed var(--border);
  padding-top: .65rem;
  margin-top: .5rem;
}
.rt-break { height: .5rem; }
.rt-table-marker { font-size: .75rem; font-weight: 600; color: var(--text3); padding-left: 1.75rem; margin: .4rem 0 .2rem; text-transform: uppercase; letter-spacing: .04em; }

/* ── Mapping card ────────────────────────────────────────────────────── */
.mapping-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1rem; }
.mapping-header { display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.mapping-header h4 { font-size: .9rem; font-weight: 600; }
.mapping-sections { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: .75rem; }
.mapping-section-chip { background: var(--bg3); border: 1px solid var(--border2); color: var(--text2); padding: .2rem .6rem; border-radius: 4px; font-size: .78rem; font-family: var(--mono); }
.mapping-explanation { font-size: .85rem; color: var(--text2); line-height: 1.6; background: var(--bg3); border-radius: var(--radius); padding: .85rem 1rem; border-left: 3px solid var(--accent); }

/* ── AI analysis panels ──────────────────────────────────────────────── */
.ai-generating { display: flex; align-items: center; gap: .8rem; padding: 2rem; color: var(--text3); font-size: .88rem; justify-content: center; }
.ai-spinner { width: 20px; height: 20px; border: 2px solid var(--border2); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; flex-shrink: 0; }

.analysis-grid { display: grid; gap: 1rem; }
.analysis-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.analysis-card-header { padding: .6rem 1rem; background: var(--bg3); border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: .5rem; }
.analysis-card-header span.icon { font-size: 1rem; }
.analysis-card-header h5 { font-size: .8rem; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .05em; }
.analysis-card-body { padding: 1rem 1.25rem; }
.analysis-card-body p { font-size: .875rem; color: var(--text2); line-height: 1.65; margin-bottom: .5rem; }
.analysis-card-body p:last-child { margin-bottom: 0; }

.info-row { display: flex; gap: .5rem; flex-direction: column; margin-bottom: .75rem; }
.info-label { font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text3); }
.info-value { font-size: .875rem; color: var(--text2); line-height: 1.55; }

.conditions-list, .mistakes-list { list-style: none; display: flex; flex-direction: column; gap: .45rem; }
.conditions-list li { font-size: .875rem; color: var(--text2); padding-left: 1.2rem; position: relative; line-height: 1.55; }
.conditions-list li::before { content: "▸"; position: absolute; left: 0; color: var(--accent2); font-size: .75rem; top: .15rem; }
.mistakes-list li { font-size: .875rem; color: var(--text2); padding-left: 1.5rem; position: relative; line-height: 1.55; }
.mistakes-list li::before { content: "⚠"; position: absolute; left: 0; color: var(--orange); font-size: .75rem; top: .05rem; }

.steps-list { display: flex; flex-direction: column; gap: .65rem; }
.step-item { display: flex; align-items: flex-start; gap: .85rem; }
.step-num { background: var(--accent); color: #fff; border-radius: 50%; width: 22px; height: 22px; display: flex; align-items: center; justify-content: center; font-size: .72rem; font-weight: 700; flex-shrink: 0; margin-top: .1rem; }
.step-desc { font-size: .875rem; color: var(--text2); line-height: 1.6; }

.flowchart-box { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; font-family: var(--mono); font-size: .8rem; color: var(--green); white-space: pre; overflow-x: auto; line-height: 1.7; }


.ca-notes-box { background: linear-gradient(135deg, rgba(240,180,41,.08) 0%, rgba(240,180,41,.04) 100%); border: 1px solid rgba(240,180,41,.25); border-radius: var(--radius); padding: 1rem 1.25rem; font-size: .875rem; color: var(--text2); line-height: 1.65; }
.ca-notes-box::before { content: "💡 CA Notes: "; color: var(--gold); font-weight: 600; }

/* ── Cross-references ────────────────────────────────────────────────── */
.crossref-list { display: flex; gap: .5rem; flex-wrap: wrap; }
.crossref-chip { background: var(--bg3); border: 1px solid var(--border2); color: var(--accent2); padding: .3rem .75rem; border-radius: var(--radius); font-size: .8rem; font-weight: 500; cursor: pointer; transition: all .15s; }
.crossref-chip:hover { background: var(--accent-glow); border-color: var(--accent); }

/* ── Keywords tag cloud ──────────────────────────────────────────────── */
.keywords-cloud { display: flex; gap: .4rem; flex-wrap: wrap; }
.kw-tag { background: var(--bg3); border: 1px solid var(--border); color: var(--text3); padding: .2rem .6rem; border-radius: 999px; font-size: .75rem; }

/* ── Loading state ───────────────────────────────────────────────────── */
.loading-state { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 300px; gap: 1rem; }
.spinner { width: 36px; height: 36px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-state p { color: var(--text3); font-size: .88rem; }

/* ── No API key notice ───────────────────────────────────────────────── */
.api-notice { background: rgba(240,180,41,.08); border: 1px solid rgba(240,180,41,.25); border-radius: var(--radius); padding: .85rem 1rem; font-size: .82rem; color: var(--gold); display: flex; align-items: flex-start; gap: .5rem; margin-bottom: 1rem; }

/* ── Utilities ───────────────────────────────────────────────────────── */
.hidden { display: none !important; }
.divider { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }


/* ── Memory Lane ─────────────────────────────────────────────────── */
.ml-sheet {
  background-color: #f5f0e6;
  background-image:
    linear-gradient(rgba(80,100,60,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80,100,60,.07) 1px, transparent 1px);
  background-size: 26px 26px;
  border-radius: 12px;
  overflow: hidden;
  font-family: 'Kalam', cursive;
  color: #1a1a1a;
  border: 2px solid #c8bb9a;
  box-shadow: 0 6px 32px rgba(0,0,0,.25);
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Title */
.ml-title-bar { background: #2d5916; color: #fff; padding: .9rem 1.5rem; display: flex; align-items: center; gap: .85rem; flex-shrink: 0; }
.ml-sec-badge { background: rgba(255,255,255,.2); border: 1px solid rgba(255,255,255,.3); border-radius: 6px; padding: .2rem .75rem; font-size: 1rem; font-weight: 700; white-space: nowrap; }
.ml-sec-title { font-size: 1.1rem; font-weight: 700; letter-spacing: .03em; }

/* Blocks — each section of the card */
.ml-block { padding: 1rem 1.4rem; border-bottom: 1.5px dashed rgba(45,89,22,.2); }
.ml-block:last-of-type { border-bottom: none; }
.ml-block-label {
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #2d5916;
  margin-bottom: .6rem;
  padding-bottom: .3rem;
  border-bottom: 2px solid rgba(45,89,22,.2);
}

/* GIST */
.ml-gist-body { font-size: .92rem; line-height: 1.75; color: #1e1e1e; }

/* FLOW — hero element */
.ml-block-flow { background: rgba(45,89,22,.04); }
.ml-flowchart {
  font-family: 'Courier New', monospace;
  font-size: .75rem;
  line-height: 1.65;
  color: #1b4010;
  background: rgba(255,255,255,.6);
  border: 1px solid rgba(45,89,22,.18);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}
.ml-no-flow { font-size: .82rem; color: #888; font-style: italic; }

/* KEY POINTS */
.ml-points { display: flex; flex-direction: column; gap: .55rem; }
.ml-point {
  display: flex;
  gap: .65rem;
  align-items: baseline;
  font-size: .88rem;
  line-height: 1.65;
  padding-bottom: .5rem;
  border-bottom: 1px dashed rgba(45,89,22,.12);
}
.ml-point:last-child { border-bottom: none; padding-bottom: 0; }
.ml-point-dot { flex-shrink: 0; font-size: .75rem; color: #2d5916; margin-top: .1rem; }
.ml-point-warn .ml-point-dot { color: #b45309; }
.ml-point-warn { background: rgba(180,83,9,.05); margin: 0 -.2rem; padding: .3rem .2rem .5rem; border-radius: 4px; }
.ml-point-note .ml-point-dot { color: #1e40af; }

/* Highlights */
mark.hl-green { background: #bbf7d0; color: #166534; border-radius: 3px; padding: 0 3px; font-style: normal; }
mark.hl-blue  { background: #bfdbfe; color: #1e40af; border-radius: 3px; padding: 0 3px; font-style: normal; }
mark.hl-pink  { background: #fce7f3; color: #9d174d; border-radius: 3px; padding: 0 3px; font-style: normal; }
mark.hl-red   { background: #fee2e2; color: #991b1b; border-radius: 3px; padding: 0 3px; font-style: normal; }

/* Linked section pills */
.ml-ref-pills { display: flex; flex-wrap: wrap; gap: .5rem; }
.ml-ref-pill {
  display: flex;
  align-items: center;
  gap: .4rem;
  background: rgba(45,89,22,.08);
  border: 1px solid rgba(45,89,22,.25);
  border-radius: 20px;
  padding: .25rem .85rem .25rem .6rem;
  cursor: pointer;
  transition: background .15s;
}
.ml-ref-pill:hover { background: rgba(45,89,22,.18); }
.ml-ref-num  { font-size: .75rem; font-weight: 700; color: #2d5916; }
.ml-ref-name { font-size: .75rem; color: #333; }

/* Memory Lane — Rules block */
.ml-block-rules { background: rgba(79,127,255,.04); }
.ml-rules-list { display: flex; flex-direction: column; gap: .45rem; }
.ml-rule-item { display: flex; align-items: flex-start; gap: .5rem; }
.ml-rule-badge {
  background: rgba(79,127,255,.12);
  color: #2a4a9e;
  border: 1px solid rgba(79,127,255,.3);
  border-radius: 4px;
  padding: .1rem .45rem;
  font-size: .68rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: .1rem;
}
.ml-rule-title { font-size: .78rem; color: #3a3a3a; line-height: 1.45; }

/* Footer */
.ml-footer { text-align: center; padding: .4rem; background: rgba(45,89,22,.07); font-size: .62rem; color: #888; }


/* ── Scrollbar ───────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .result-area { padding: 1rem; }
.tab-btn { font-size: .76rem; padding: .5rem .75rem; }
}

/* ── Mapping with ITA 1961 ───────────────────────────────────────────────── */

/* Sidebar pin button */
.mapping-pin-btn {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .6rem .9rem;
  margin: .4rem .55rem .6rem;
  cursor: pointer;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(79,127,255,.12) 0%, rgba(107,154,255,.06) 100%);
  border: 1px solid rgba(79,127,255,.28);
  transition: background .15s, border-color .15s, box-shadow .15s;
  font-size: .8rem;
  font-weight: 700;
  color: var(--accent2);
  letter-spacing: .02em;
}
.mapping-pin-btn:hover {
  background: rgba(79,127,255,.22);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}
.mapping-pin-btn.active {
  background: rgba(79,127,255,.25);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 2px var(--accent-glow);
}
.map-pin-icon { font-size: 1rem; }
.map-pin-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Mapping view panel */
.mapping-view {
  padding: 1.5rem 1.8rem;
  max-width: 100%;
  overflow: auto;
}

/* Header */
.mv-header { margin-bottom: 1.4rem; }
.mv-title-row { display: flex; align-items: center; gap: .65rem; margin-bottom: .55rem; }
.mv-icon { font-size: 1.6rem; line-height: 1; }
.mv-heading { font-size: 1.45rem; font-weight: 800; color: var(--text); letter-spacing: -.01em; }
.mv-subtitle { font-size: .88rem; color: var(--text2); line-height: 1.65; margin-bottom: 1rem; max-width: 700px; }

/* Search row */
.mv-search-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.mv-search-wrap {
  flex: 1;
  min-width: 260px;
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--surface);
  border: 1.5px solid var(--border2);
  border-radius: 10px;
  padding: .5rem .8rem;
  transition: border-color .15s, box-shadow .15s;
}
.mv-search-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.mv-search-icon { font-size: .95rem; color: var(--text3); flex-shrink: 0; }
.mv-search-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: .88rem;
  color: var(--text);
  font-family: inherit;
}
.mv-search-wrap input::placeholder { color: var(--text3); }
.mv-clear-btn {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: .8rem;
  padding: 0 .2rem;
  line-height: 1;
}
.mv-clear-btn:hover { color: var(--text); }
.mv-count { font-size: .8rem; color: var(--text3); white-space: nowrap; font-weight: 600; }

/* Table wrap */
.mv-table-wrap { overflow-x: auto; }

/* Main table */
.mv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .84rem;
}
.mv-table thead th {
  background: var(--surface);
  color: var(--text2);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .6rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--border2);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
}
.mv-col-s25  { width: 90px; }
.mv-col-title { min-width: 260px; }
.mv-col-s61  { min-width: 200px; }

/* Chapter separator rows */
.mv-chapter-row .mv-chapter-cell {
  padding: .7rem 1rem .4rem;
  font-size: .7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent2);
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Data rows */
.mv-data-row {
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.mv-data-row:hover { background: var(--bg3); }

.mv-data-row td { padding: .5rem 1rem; vertical-align: top; }

/* ITA 2025 section link */
.mv-s25-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: .25rem .5rem;
  background: var(--accent-glow);
  color: var(--accent2);
  border: 1px solid rgba(79,127,255,.3);
  border-radius: 6px;
  font-weight: 800;
  font-size: .84rem;
  text-decoration: none;
  transition: background .12s, color .12s, border-color .12s, box-shadow .12s;
  white-space: nowrap;
}
.mv-s25-link:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(79,127,255,.4);
}

/* ITA 1961 section chips */
.mv-col-s61 { line-height: 1.9; }
.mv-s61-chip {
  display: inline-block;
  background: var(--bg3);
  color: var(--text2);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: .08rem .38rem;
  font-size: .75rem;
  font-weight: 600;
  margin: .05rem .1rem .05rem 0;
  white-space: nowrap;
}
.mv-s61-chip.mv-s61-new {
  background: rgba(34,197,94,.1);
  color: #22c55e;
  border-color: rgba(34,197,94,.3);
  font-style: italic;
}

/* ── Mapping sub-tabs (Sections / Schedules) ─────────────────────────────── */
.mv-sub-tabs {
  display: flex;
  gap: .45rem;
  margin-top: .9rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.mv-sub-tab {
  padding: .5rem 1.1rem;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  background: transparent;
  color: var(--text2);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  position: relative;
  bottom: -1px;
}
.mv-sub-tab:hover { color: var(--text); background: var(--bg3); }
.mv-sub-tab.active {
  color: var(--accent2);
  background: var(--surface);
  border-color: var(--border);
  border-bottom-color: var(--surface);
}
.mv-subtab-pane { display: none; }
.mv-subtab-pane.active { display: block; }
.mv-subtab-pane[data-subtab="sections"] { padding-top: 1rem; }

/* ── Schedules pane ──────────────────────────────────────────────────────── */
.sch-loading {
  padding: 3rem;
  text-align: center;
  color: var(--text3);
  font-size: .9rem;
}
.sch-intro {
  padding: 1rem 0 1.2rem 0;
  color: var(--text2);
  font-size: .88rem;
  line-height: 1.65;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.2rem;
}
.sch-grid {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding-bottom: 2rem;
}

/* Schedule accordion card */
.sch-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  transition: border-color .15s;
}
.sch-card:hover { border-color: var(--border2); }
.sch-card.open  { border-color: var(--accent); }

.sch-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .85rem 1.1rem;
  cursor: pointer;
  user-select: none;
  transition: background .15s;
}
.sch-card-header:hover { background: var(--bg3); }

.sch-card-left {
  display: flex;
  flex-direction: column;
  gap: .18rem;
  min-width: 120px;
  flex-shrink: 0;
}
.sch-num {
  font-size: .78rem;
  font-weight: 800;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.sch-sec-ref {
  font-size: .72rem;
  color: var(--text3);
  font-family: var(--mono);
}

.sch-card-mid {
  flex: 1;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.sch-title {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}
.sch-badge {
  font-size: .7rem;
  font-weight: 700;
  padding: .2rem .55rem;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.sch-badge-table {
  background: var(--accent-glow);
  color: var(--accent2);
  border: 1px solid rgba(79,127,255,.25);
}
.sch-badge-text {
  background: rgba(100,116,139,.12);
  color: var(--text3);
  border: 1px solid var(--border);
}

.sch-chevron {
  font-size: 1.3rem;
  color: var(--text3);
  line-height: 1;
  transition: transform .2s;
  flex-shrink: 0;
}
.sch-card.open .sch-chevron { transform: rotate(90deg); }

/* Card body (hidden until open) */
.sch-card-body {
  display: none;
  padding: 1rem 1.1rem 1.2rem 1.1rem;
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.sch-card.open .sch-card-body { display: block; }

/* Text paragraphs inside schedule body */
.sch-text-block { margin-top: .5rem; }
.sch-para {
  font-size: .875rem;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: .6rem;
}
.sch-para:first-child { margin-top: 0; }

/* Tables inside schedules reuse .bare-act-table — just add a top margin */
.sch-card-body .bare-act-table-wrap { margin-bottom: 1.2rem; }
.sch-card-body .bare-act-table-wrap:last-child { margin-bottom: 0; }