/* ============================================================
   Sahayak.

   Built to read like a scheme circular: warm document paper, ruled
   separators, clause-numbered sections, citation markers in mono.
   The abstain state is styled like a stamp, because that is the state
   worth noticing.
   ============================================================ */

:root {
  --paper: #fcfbf7;
  --paper-2: #f5f2e9;
  --ink: #1c1b19;
  --ink-2: #4a4844;
  --ink-3: #837f75;
  --rule: #ddd9ce;
  --rule-2: #c8c2b2;

  --seal: #1f5c3d;          /* institutional green, used for citations */
  --seal-soft: #e7efe9;
  --stamp: #9a5f1f;         /* ochre, used for abstain / unverified */
  --stamp-soft: #f7efe1;
  --deny: #8c3b32;

  --measure: 66ch;
  --maxw: 980px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  font-family: 'Source Serif 4', Georgia, serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.68;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: 'Source Serif 4', Georgia, serif; font-weight: 600; line-height: 1.2; }
.ui { font-family: 'Karla', system-ui, sans-serif; }
.mono { font-family: 'Space Mono', ui-monospace, monospace; }
a { color: var(--seal); text-underline-offset: 3px; }
code {
  font-family: 'Space Mono', ui-monospace, monospace; font-size: .84em;
  background: var(--paper-2); border: 1px solid var(--rule);
  padding: .04em .3em; border-radius: 2px;
}

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 0; top: 0; background: var(--ink); color: var(--paper); padding: .7rem 1rem; z-index: 100; }
:where(a, button, summary, input, select, [tabindex]):focus-visible {
  outline: 2px solid var(--seal); outline-offset: 2px;
}

/* ---------- masthead: a document header ---------- */
.topbar {
  position: sticky; top: 0; z-index: 60;
  background: var(--paper); border-bottom: 2px solid var(--ink);
}
.topbar-in {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: baseline; gap: 1.4rem;
  padding: .7rem clamp(1rem, 4vw, 2rem);
}
.logo {
  font-family: 'Source Serif 4', serif; font-weight: 600; font-size: 1.15rem;
  color: var(--ink); text-decoration: none; letter-spacing: .01em;
}
.logo em { font-style: normal; color: var(--seal); }
.topnav { display: flex; gap: 1rem; margin-right: auto; flex-wrap: wrap; }
.topnav a {
  font-family: 'Karla', sans-serif; font-size: .84rem;
  color: var(--ink-2); text-decoration: none;
}
.topnav a:hover { color: var(--seal); }
@media (max-width: 780px) { .topnav { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; font-family: 'Karla', sans-serif; font-size: .9rem;
  font-weight: 600; padding: .5rem 1.05rem; cursor: pointer;
  border: 1px solid var(--ink); background: transparent; color: var(--ink);
  border-radius: 2px; text-decoration: none;
}
.btn:hover:not(:disabled) { background: var(--ink); color: var(--paper); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-solid { background: var(--seal); border-color: var(--seal); color: #fff; }
.btn-solid:hover:not(:disabled) { background: #17452d; border-color: #17452d; color: #fff; }
.btn.sm { padding: .3rem .65rem; font-size: .8rem; }

/* ---------- layout ---------- */
.hero, .band {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.2rem) clamp(1rem, 4vw, 2rem);
}
.band { border-top: 1px solid var(--rule); }
.band.sunk { background: var(--paper-2); }
.band.cta { text-align: center; }

.docref {
  font-family: 'Space Mono', monospace; font-size: .73rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3);
  padding-bottom: .8rem; margin-bottom: 1.4rem;
  border-bottom: 1px solid var(--rule);
}
h1 { font-size: clamp(1.85rem, 4.6vw, 2.9rem); max-width: 26ch; letter-spacing: -.01em; }
h2 { font-size: clamp(1.3rem, 2.8vw, 1.7rem); margin-bottom: .5rem; }
h2 .clause {
  font-family: 'Space Mono', monospace; font-size: .58em; font-weight: 400;
  color: var(--seal); margin-right: .6rem;
}
h3 { font-size: 1.02rem; margin-bottom: .35rem; }

.lede { font-size: 1.08rem; color: var(--ink-2); max-width: var(--measure); margin-top: 1.1rem; }
.lede strong { color: var(--ink); font-weight: 600; }
.sub { color: var(--ink-2); max-width: var(--measure); margin-bottom: 1.5rem; font-size: .98rem; }
.sub.tight { margin-bottom: 1rem; }
.note { font-size: .92rem; color: var(--ink-2); max-width: var(--measure); margin-top: 1.2rem; }
.band.cta .note { margin-inline: auto; }

/* ---------- figures, laid out like a schedule ---------- */
.facts { list-style: none; margin-top: 2rem; border-top: 1px solid var(--rule-2); }
.facts li {
  display: grid; grid-template-columns: 5.5rem 1fr; gap: 0 1.2rem;
  align-items: baseline; padding: .7rem 0; border-bottom: 1px solid var(--rule);
}
.fact-n {
  font-family: 'Space Mono', monospace; font-size: 1.25rem; font-weight: 700;
  color: var(--ink); text-align: right; font-variant-numeric: tabular-nums;
}
.fact-l { font-size: .93rem; color: var(--ink-2); }

/* ---------- runtime strip ---------- */
.runtime {
  margin-top: 1.6rem; display: inline-flex; align-items: center; gap: .6rem;
  font-family: 'Karla', sans-serif; font-size: .84rem; color: var(--ink-2);
  background: var(--paper-2); border: 1px solid var(--rule-2);
  padding: .45rem .9rem; border-radius: 2px;
}
.runtime.is-ready { border-color: var(--seal); color: var(--seal); }
.runtime.is-failed { border-color: var(--deny); color: var(--deny); }
.spin {
  width: 10px; height: 10px; flex: none; border-radius: 50%;
  border: 2px solid var(--rule-2); border-top-color: var(--seal);
  animation: sp .8s linear infinite;
}
.is-ready .spin, .is-failed .spin { border: 0; animation: none; background: currentColor; }
@keyframes sp { to { transform: rotate(360deg); } }

/* ---------- tabs, as file dividers ---------- */
.tabs { display: flex; gap: 0; margin-bottom: 1.4rem; border-bottom: 1px solid var(--rule-2); }
.tab {
  font-family: 'Karla', sans-serif; font-size: .92rem; font-weight: 600;
  cursor: pointer; background: transparent; color: var(--ink-3);
  border: 0; border-bottom: 3px solid transparent;
  padding: .5rem .9rem; margin-bottom: -1px;
}
.tab:hover { color: var(--ink); }
.tab.is-on { color: var(--ink); border-bottom-color: var(--seal); }

/* ---------- ask ---------- */
.field-label {
  display: block; font-family: 'Space Mono', monospace; font-size: .7rem;
  letter-spacing: .07em; text-transform: uppercase; color: var(--ink-3); margin-bottom: .4rem;
}
.ask-row { display: flex; gap: .6rem; flex-wrap: wrap; align-items: flex-end; }
.ask-row input {
  flex: 1 1 320px; font-family: 'Source Serif 4', serif; font-size: 1.02rem;
  padding: .45rem .2rem; color: var(--ink); background: transparent;
  border: 0; border-bottom: 1.5px solid var(--ink);
}
.ask-row input::placeholder { color: var(--ink-3); font-style: italic; }
.ask-row input:focus { outline: 0; border-bottom-color: var(--seal); }

.examples {
  display: flex; align-items: center; gap: .35rem; flex-wrap: wrap;
  margin-top: .9rem; font-family: 'Karla', sans-serif; font-size: .82rem; color: var(--ink-3);
}
.ex {
  font-family: 'Karla', sans-serif; font-size: .8rem; cursor: pointer;
  background: transparent; color: var(--seal);
  border: 1px solid var(--rule-2); border-radius: 2px; padding: .2rem .5rem;
}
.ex:hover { border-color: var(--seal); background: var(--seal-soft); }
.ex.is-trap { color: var(--stamp); border-color: var(--stamp); }
.ex.is-trap:hover { background: var(--stamp-soft); }

/* ---------- the answer block ---------- */
.out { margin-top: 1.6rem; display: grid; gap: 1rem; }
.answer {
  background: #fff; border: 1px solid var(--rule-2); border-left: 4px solid var(--seal);
  padding: 1.2rem 1.35rem;
}
.answer.is-abstained { border-left-color: var(--stamp); background: var(--stamp-soft); }
.answer-head {
  display: flex; align-items: center; gap: .7rem; flex-wrap: wrap;
  margin-bottom: .85rem; padding-bottom: .7rem; border-bottom: 1px solid var(--rule);
}
/* The badge reads as a stamp rather than a chip. */
.badge {
  font-family: 'Space Mono', monospace; font-size: .68rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .22rem .5rem; border: 2px solid currentColor; border-radius: 2px;
  transform: rotate(-1.5deg);
}
.badge.b-answered { color: var(--seal); }
.badge.b-abstained { color: var(--stamp); }
.conf { font-family: 'Space Mono', monospace; font-size: .78rem; color: var(--ink-2); }
.conf b { color: var(--ink); }
.answer-body p { margin-bottom: .85rem; color: var(--ink); }
.answer-body p:last-child { margin-bottom: 0; }
.cite-marker {
  font-family: 'Space Mono', monospace; font-size: .72em; font-weight: 700;
  color: var(--seal); vertical-align: super;
}
.sources { margin-top: 1.1rem; padding-top: .8rem; border-top: 1px solid var(--rule); }
.sources h4 {
  font-family: 'Space Mono', monospace; font-size: .68rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: .5rem;
}
.sources ol { list-style: none; display: grid; gap: .35rem; }
.sources li { font-size: .9rem; color: var(--ink-2); }
.sources .n { font-family: 'Space Mono', monospace; font-weight: 700; color: var(--seal); margin-right: .4rem; }

.retrieved { margin-top: 1rem; }
.retrieved summary {
  cursor: pointer; font-family: 'Karla', sans-serif; font-size: .86rem;
  font-weight: 600; color: var(--seal);
}
.hitlist { list-style: none; display: grid; gap: .5rem; margin-top: .7rem; }
.hitlist li {
  background: var(--paper); border: 1px solid var(--rule);
  border-left: 2px solid var(--rule-2);
  padding: .6rem .75rem; font-size: .88rem; color: var(--ink-2);
}
.hit-meta {
  font-family: 'Space Mono', monospace; font-size: .7rem;
  color: var(--ink-3); margin-bottom: .3rem; display: flex; gap: .9rem; flex-wrap: wrap;
}

/* ---------- the profile form: underlined fields, like a paper form ---------- */
.profile {
  display: grid; gap: 1.2rem 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  background: #fff; border: 1px solid var(--rule-2); padding: 1.4rem;
}
.pf { display: flex; flex-direction: column; gap: .3rem; }
.pf label, .pf legend {
  font-family: 'Space Mono', monospace; font-size: .68rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3);
}
.pf input[type="number"], .pf select {
  font-family: 'Source Serif 4', serif; font-size: .98rem; color: var(--ink);
  padding: .3rem .15rem; background: transparent;
  border: 0; border-bottom: 1px solid var(--rule-2);
}
.pf input:focus, .pf select:focus { outline: 0; border-bottom-color: var(--seal); }
.pf-flags { border: 0; display: flex; flex-direction: column; gap: .35rem; }
.pf-flags legend { margin-bottom: .3rem; }
.chk {
  display: flex; align-items: center; gap: .45rem;
  font-family: 'Karla', sans-serif; font-size: .88rem;
  text-transform: none; letter-spacing: 0; color: var(--ink-2);
}
.chk input { accent-color: var(--seal); width: 15px; height: 15px; }
.pf-actions {
  grid-column: 1 / -1; flex-direction: row; align-items: center;
  gap: .6rem; flex-wrap: wrap; padding-top: .4rem; border-top: 1px solid var(--rule);
}
.pf-actions .incl { margin-left: auto; font-size: .84rem; }

/* ---------- verdicts, as an annexure ---------- */
.verdicts { list-style: none; border-top: 1px solid var(--rule-2); }
.verdict { padding: .95rem 0 1rem; border-bottom: 1px solid var(--rule); padding-left: .9rem; }
.verdict.v-eligible { border-left: 3px solid var(--seal); }
.verdict.v-likely { border-left: 3px solid #6a9c7f; }
.verdict.v-info { border-left: 3px solid var(--stamp); }
.verdict.v-not { border-left: 3px solid var(--deny); opacity: .8; }
.v-head { display: flex; align-items: baseline; gap: .7rem; flex-wrap: wrap; }
.v-name { font-weight: 600; font-size: 1.04rem; }
.tier {
  font-family: 'Space Mono', monospace; font-size: .66rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  padding: .1rem .4rem; border: 1px solid currentColor; border-radius: 2px;
}
.tier.t-eligible { color: var(--seal); }
.tier.t-likely { color: #4a7d60; }
.tier.t-info { color: var(--stamp); }
.tier.t-not { color: var(--deny); }
.v-benefit { font-family: 'Karla', sans-serif; font-size: .88rem; color: var(--ink-2); margin-left: auto; }
.v-reasons { list-style: none; margin-top: .55rem; display: grid; gap: .2rem; }
.v-reasons li { font-size: .9rem; color: var(--ink-2); padding-left: 1rem; position: relative; }
.v-reasons li::before {
  content: "\2014"; position: absolute; left: 0; color: var(--rule-2);
}
.v-missing {
  margin-top: .55rem; font-family: 'Karla', sans-serif; font-size: .86rem;
  color: var(--stamp); background: var(--stamp-soft);
  border-left: 2px solid var(--stamp); padding: .35rem .6rem;
}
.v-missing b { font-family: 'Space Mono', monospace; font-size: .94em; }
.v-foot { margin-top: .55rem; font-family: 'Karla', sans-serif; font-size: .85rem; }
.unverified { font-family: 'Space Mono', monospace; font-size: .7rem; color: var(--ink-3); margin-left: .5rem; }

.empty {
  background: var(--paper-2); border: 1px dashed var(--rule-2);
  padding: 1rem 1.15rem; color: var(--ink-2); font-size: .94rem;
}

/* ---------- clauses / notes / limits ---------- */
.clauses { list-style: none; counter-reset: cl; }
.clauses li {
  display: grid; grid-template-columns: 2.6rem 1fr; gap: 0 .8rem;
  padding: .95rem 0; border-top: 1px solid var(--rule);
}
.clauses li:first-child { border-top: 1px solid var(--rule-2); }
.clauses li::before {
  counter-increment: cl; content: counter(cl) ".";
  font-family: 'Space Mono', monospace; font-size: .92rem; color: var(--seal);
}
.clauses p { color: var(--ink-2); max-width: var(--measure); font-size: .96rem; }

.callout {
  margin-bottom: 1.1rem; background: #fff;
  border: 1px solid var(--rule-2); border-left: 4px solid var(--seal);
  padding: 1.15rem 1.3rem;
}
.callout p { color: var(--ink-2); max-width: var(--measure); }
.callout p + p { margin-top: .8rem; }
.callout strong, .callout em { color: var(--ink); }
.callout .caveat { font-size: .93rem; border-top: 1px solid var(--rule); padding-top: .8rem; }
.callout h3 { margin-bottom: .45rem; }

.limits { list-style: none; max-width: 74ch; }
.limits li {
  padding: .75rem 0 .75rem 1.5rem; border-top: 1px solid var(--rule);
  color: var(--ink-2); font-size: .96rem; position: relative;
}
.limits li::before {
  content: "\00a7"; position: absolute; left: 0; top: .78rem;
  font-family: 'Space Mono', monospace; color: var(--stamp); font-size: .9rem;
}
.limits strong { color: var(--ink); font-weight: 600; }

.cta-row { display: flex; gap: .6rem; flex-wrap: wrap; justify-content: center; margin-top: 1.2rem; }
.foot {
  border-top: 2px solid var(--ink); padding: 1.4rem 1.2rem; text-align: center;
  font-family: 'Space Mono', monospace; font-size: .76rem; color: var(--ink-3);
}
.foot a { color: var(--ink-2); text-decoration: none; }
.foot a:hover { color: var(--seal); text-decoration: underline; }
.foot span { margin: 0 .5rem; color: var(--rule-2); }