/* ClaimCheck: an auditor's ledger. Ink on ledger paper; a red pen for what the rules do not allow,
   green for what they do. Sans (Hanken Grotesk) is ClaimCheck's own voice; serif (Newsreader) is only
   ever words quoted from a document: the policy, IRDAI, the insurer's letter, and the appeal letter. */
:root {
  --paper: #f2f4f0;
  --sheet: #ffffff;
  --ink: #1c2327;
  --muted: #5d696f;
  --rule: #d5dcd6;
  --pen: #c2362b; /* not allowed */
  --tick: #2c7650; /* allowed */
  --amber: #9c6311; /* too high */
  --slate: #627280; /* unclear */
  --wash: color-mix(in srgb, var(--pen) 7%, transparent);
  --focus: var(--ink);
  --radius: 10px;
  --radius-sm: 4px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --fast: 160ms;
  --base: 240ms;
  --sans: "Hanken Grotesk", "Segoe UI", system-ui, sans-serif;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121618;
    --sheet: #1a2023;
    --ink: #e6ebe8;
    --muted: #9aa6a3;
    --rule: #2b3438;
    --pen: #ef6b5c;
    --tick: #5fc48d;
    --amber: #e0a540;
    --slate: #9fb0bd;
    --focus: #e6ebe8;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
a { color: inherit; text-underline-offset: 3px; }

.doc-words { font-family: var(--serif); }
.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- frame ---------- */

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px clamp(16px, 4vw, 40px);
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; text-decoration: none; letter-spacing: -0.01em; }

/* A tick inside a ledger box: the mark of an audited line. */
.brand-mark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--ink);
  border-radius: 3px;
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 10px;
  border: solid var(--pen);
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(40deg);
}

main { max-width: 1180px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px) 40px; }

.foot { max-width: 1180px; margin: 0 auto; padding: 18px clamp(16px, 4vw, 40px) 32px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--rule); }
.foot p { margin: 0; max-width: 80ch; }

.btn {
  border: 0;
  border-radius: 8px;
  padding: 11px 18px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--fast), scale var(--fast) var(--ease-out);
}
.btn:hover { background: color-mix(in srgb, var(--ink) 82%, var(--pen)); }
.btn:active { scale: 0.97; }
.btn:disabled { opacity: 0.55; cursor: progress; }
.btn-quiet { background: transparent; color: var(--ink); border: 1px solid var(--rule); }
.btn-quiet:hover { background: var(--sheet); }

.sheet { background: var(--sheet); border: 1px solid var(--rule); border-radius: var(--radius); }

.section-title { margin: 0 0 4px; font-size: 18px; font-weight: 650; letter-spacing: -0.01em; }
.section-text { margin: 0 0 14px; color: var(--muted); font-size: 14px; max-width: 70ch; }

/* ---------- first screen ---------- */

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  padding: clamp(24px, 6vw, 72px) 0 clamp(32px, 6vw, 72px);
}

.intro-title { margin: 0; font-size: clamp(34px, 5.2vw, 60px); line-height: 1.04; letter-spacing: -0.03em; font-weight: 700; max-width: 14ch; }
.intro-text { margin: 18px 0 0; font-size: clamp(16px, 1.5vw, 18px); color: var(--muted); max-width: 52ch; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.intro-note { margin: 14px 0 0; font-size: 13px; color: var(--muted); }

.preview { margin: 0; }
.preview-sheet { padding: 20px 22px 10px; box-shadow: 0 1px 0 var(--rule), 0 18px 40px -28px rgb(20 30 30 / 0.35); rotate: 1.2deg; }
.preview-head { margin: 0 0 6px; font-size: 13px; color: var(--muted); font-weight: 600; }
.preview-list { list-style: none; margin: 0; padding: 0; }
.preview-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 16px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
  align-items: baseline;
}
.preview-list .doc-words { font-size: 16px; line-height: 1.35; }
.preview-list .stamp { grid-column: 1 / -1; justify-self: start; }

/* A verdict, as a rubber stamp. Uppercase here only: that is what stamps look like. */
.stamp {
  display: inline-block;
  padding: 2px 8px 1px;
  border: 2px solid currentColor;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  rotate: -3deg;
  white-space: nowrap;
}
.stamp-allowed { color: var(--tick); }
.stamp-too_high { color: var(--amber); }
.stamp-not_allowed { color: var(--pen); }
.stamp-unclear { color: var(--slate); }

/* ---------- form and progress ---------- */

.panel { max-width: 720px; margin: clamp(16px, 4vw, 40px) auto; }
.check-form { display: grid; gap: 18px; }
.field-group { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; }
.field { display: grid; gap: 6px; }
.field-label { font-size: 14px; font-weight: 600; padding: 0; }
.field-hint { font-size: 13px; color: var(--muted); }
select, input[type="number"], input[type="file"] {
  width: 100%;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 10px 12px;
  transition: border-color var(--fast);
}
select:hover, input:hover { border-color: color-mix(in srgb, var(--ink) 30%, var(--rule)); }
input:focus-visible, select:focus-visible { border-color: var(--ink); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--muted); }
.check input { margin-top: 4px; accent-color: var(--ink); }
.form-error { margin: 0; color: var(--pen); }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; }

.log { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--rule); }
.log li { position: relative; padding: 6px 0 6px 18px; font-size: 15px; }
.log li::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 14px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--ink);
}
.log li.is-tool { padding-left: 30px; font-size: 14px; color: var(--muted); }
.log li.is-tool::before { left: 12px; width: 6px; height: 6px; top: 15px; border-width: 0; background: var(--muted); }
.log li.is-done::before { background: var(--ink); }
.log-compact li { font-size: 13.5px; padding-top: 4px; padding-bottom: 4px; }
.log-compact li.is-tool { font-size: 13px; }

/* ---------- report ---------- */

.report { padding-top: clamp(12px, 3vw, 28px); }

.summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--sheet);
  overflow: hidden;
}
.summary-part { padding: 18px 20px; border-left: 1px solid var(--rule); }
.summary-part:first-child { border-left: 0; }
.summary-label { margin: 0; font-size: 13px; color: var(--muted); font-weight: 600; }
.summary-value { margin: 4px 0 0; font-size: clamp(24px, 3vw, 34px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
.summary-part.is-due { background: var(--wash); }
.summary-part.is-due .summary-value { color: var(--pen); }
.summary-note { margin: 4px 0 0; font-size: 13px; color: var(--muted); }

.report-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: clamp(20px, 3vw, 40px); margin-top: 28px; align-items: start; }
.report-side { position: sticky; top: 16px; display: grid; gap: 24px; }
.block { margin-bottom: 32px; }

.findings { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.finding { background: var(--sheet); border: 1px solid var(--rule); border-radius: var(--radius); padding: 16px 18px; }
.finding-head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 4px 12px; align-items: baseline; }
.finding-no { font-weight: 700; color: var(--muted); }
.finding-reason { font-family: var(--serif); font-size: 17px; line-height: 1.35; }
.finding-amount { font-weight: 650; }
.finding-verdict { grid-column: 2 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-top: 8px; }
.finding-due { font-size: 14px; font-weight: 650; color: var(--pen); }
.finding-text { margin: 12px 0 0; max-width: 68ch; }
.finding.is-not_allowed, .finding.is-too_high { border-left: 3px solid var(--pen); }

.quote { margin: 12px 0 0; padding: 2px 0 2px 14px; border-left: 2px solid var(--rule); }
.quote-text { margin: 0; font-family: var(--serif); font-size: 16px; line-height: 1.5; font-style: italic; }
.quote-source { margin: 4px 0 0; font-size: 13px; color: var(--muted); }

.ledger { padding: 4px 18px; }
.ledger-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 16px; padding: 12px 0; border-top: 1px solid var(--rule); }
.ledger-row:first-child { border-top: 0; }
.ledger-label { font-weight: 600; }
.ledger-detail { grid-column: 1; font-size: 13.5px; color: var(--muted); max-width: 70ch; }
.ledger-amount { grid-row: 1; grid-column: 2; font-weight: 600; text-align: right; }
.ledger-row.is-cut .ledger-amount { color: var(--muted); }
.ledger-row.is-total { border-top: 2px solid var(--ink); }
.ledger-row.is-total .ledger-amount, .ledger-row.is-total .ledger-label { font-weight: 700; }
.ledger-refs { grid-column: 1 / -1; font-size: 12.5px; color: var(--muted); }

.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.items li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 16px; padding: 10px 14px; background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; }
.items .item-entry { grid-column: 1 / -1; font-size: 13px; color: var(--muted); }

.letter { padding: clamp(18px, 3vw, 32px); }
.letter-text { margin: 0; white-space: pre-wrap; font-family: var(--serif); font-size: 16px; line-height: 1.6; }
.letter-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }

.sources { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 13.5px; }
.sources li { padding-bottom: 10px; border-bottom: 1px solid var(--rule); }
.source-doc { display: block; font-weight: 600; }
.source-where { color: var(--muted); }

.disclaimer { margin: 8px 0 0; padding: 14px 16px; border: 1px dashed var(--rule); border-radius: 8px; color: var(--muted); font-size: 14px; max-width: 80ch; }
.report-actions { margin-top: 18px; }

/* ---------- small screens ---------- */

@media (max-width: 960px) {
  .report-grid { grid-template-columns: minmax(0, 1fr); }
  .report-side { position: static; }
}

@media (max-width: 760px) {
  .intro { grid-template-columns: minmax(0, 1fr); }
  .preview-sheet { rotate: 0deg; }
  .summary { grid-template-columns: minmax(0, 1fr); }
  .summary-part { border-left: 0; border-top: 1px solid var(--rule); }
  .summary-part:first-child { border-top: 0; }
  .finding-head { grid-template-columns: auto minmax(0, 1fr); }
  .finding-amount { grid-column: 2; }
  .finding-verdict { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}