:root {
  --paper: #f3f0e8;
  --surface: #faf8f2;
  --ink: #171915;
  --muted: #66695f;
  --line: #cbc8bd;
  --accent: #d4552d;
  --green: #1f7452;
  --amber: #a56b05;
  --red: #a9362c;
  --critical: #651f1b;
  --shadow: 0 18px 45px rgba(32, 31, 26, .08);
}

* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 25, 21, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 25, 21, .035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, .drop-zone:focus-visible { outline: 3px solid rgba(212, 85, 45, .35); outline-offset: 3px; }
code, .step, .eyebrow, .privacy-state, .boundary-row, .risk-badge, .severity, .section-label { font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 64px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
  background: rgba(243, 240, 232, .92);
  backdrop-filter: blur(10px);
}
.brand { display: inline-flex; gap: 12px; align-items: center; color: var(--ink); font-weight: 600; text-decoration: none; }
.brand-mark { display: grid; width: 34px; height: 34px; place-items: center; color: var(--surface); background: var(--ink); font: 500 12px ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.privacy-state { display: flex; gap: 8px; align-items: center; color: var(--green); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.privacy-state span { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(31, 116, 82, .12); }
.source-link { justify-self: end; color: var(--ink); font-size: 13px; text-underline-offset: 4px; }

main { width: min(1120px, 92vw); margin: 0 auto; }
.intro { padding: clamp(72px, 11vw, 140px) 0 64px; }
.eyebrow, .step { margin: 0 0 16px; color: var(--accent); font-size: 12px; font-weight: 600; letter-spacing: .11em; }
h1 { max-width: 900px; margin: 0; font-size: clamp(54px, 9vw, 118px); font-weight: 500; letter-spacing: -.065em; line-height: .88; }
.lede { max-width: 690px; margin: 36px 0 28px; color: var(--muted); font-size: clamp(18px, 2vw, 23px); line-height: 1.55; text-wrap: pretty; }
.boundary-row { display: flex; flex-wrap: wrap; gap: 8px; }
.boundary-row span { padding: 7px 10px; border: 1px solid var(--line); background: rgba(250, 248, 242, .6); font-size: 10px; letter-spacing: .06em; }

.workspace, .result, .limits { margin: 0 0 72px; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); }
.workspace { padding: clamp(24px, 4vw, 48px); }
.workspace-head, .result-head, .receipt-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; }
h2 { margin: 0; font-size: clamp(30px, 4vw, 48px); font-weight: 500; letter-spacing: -.045em; line-height: 1; }
.drop-zone { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; min-height: 190px; margin-top: 34px; padding: 32px; border: 1px dashed #99968c; transition: border-color .2s, background .2s; }
.drop-zone:hover, .drop-zone[data-drag='true'] { border-color: var(--accent); background: #fff9f2; }
.drop-icon { display: grid; width: 52px; height: 52px; place-items: center; border: 1px solid var(--ink); font: 24px ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.drop-zone strong { font-size: 20px; font-weight: 500; }
.drop-zone p { margin: 8px 0 0; color: var(--muted); }
.primary-button, .secondary-button, .text-button { min-height: 46px; padding: 0 18px; border: 1px solid var(--ink); cursor: pointer; }
.primary-button { color: var(--surface); background: var(--ink); }
.primary-button:hover { background: var(--accent); border-color: var(--accent); }
.secondary-button { color: var(--ink); background: transparent; }
.secondary-button:hover { color: var(--surface); background: var(--ink); }
.text-button { padding-inline: 0; border: 0; border-bottom: 1px solid currentColor; color: var(--ink); background: none; min-height: 30px; }
.link-button { display: inline-grid; place-items: center; text-decoration: none; white-space: nowrap; }
progress { width: 100%; height: 4px; margin-top: 18px; appearance: none; }
progress::-webkit-progress-bar { background: #dfdcd2; }
progress::-webkit-progress-value { background: var(--accent); }
.status { min-height: 24px; margin: 18px 0 0; font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 13px; }
.status[data-tone='success'] { color: var(--green); }
.status[data-tone='error'] { color: var(--red); }
.fine-print { max-width: 880px; margin: 12px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }

.result { scroll-margin-top: 84px; }
.result-head { padding: 40px 48px; border-bottom: 1px solid var(--line); }
.risk-badge { min-width: 104px; padding: 12px 16px; color: white; text-align: center; font-size: 13px; letter-spacing: .08em; background: var(--green); }
.risk-badge[data-risk='medium'] { background: var(--amber); }
.risk-badge[data-risk='high'] { background: var(--red); }
.risk-badge[data-risk='critical'] { background: var(--critical); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.metric { min-height: 118px; padding: 24px; border-right: 1px solid var(--line); }
.metric:last-child { border-right: 0; }
.metric span { display: block; margin-bottom: 22px; color: var(--muted); font: 11px ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; text-transform: uppercase; letter-spacing: .08em; }
.metric strong { font-size: clamp(20px, 2.3vw, 31px); font-weight: 500; letter-spacing: -.04em; }
.findings-section { display: grid; grid-template-columns: 180px 1fr; gap: 32px; padding: 40px 48px 52px; border-bottom: 1px solid var(--line); }
.section-label { color: var(--muted); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.findings { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.finding { padding: 20px 22px; border: 1px solid var(--line); background: white; }
.finding > div { display: flex; gap: 12px; align-items: center; }
.finding h3 { margin: 0; font-size: 18px; font-weight: 500; }
.finding p { margin: 12px 0; color: var(--muted); line-height: 1.5; }
.finding code { color: var(--muted); font-size: 10px; }
.severity { padding: 3px 6px; color: white; background: var(--green); font-size: 9px; }
.finding.medium .severity { background: var(--amber); }
.finding.high .severity { background: var(--red); }
.finding.critical .severity { background: var(--critical); }
.receipt-section { padding: 40px 48px; border-bottom: 1px solid var(--line); }
textarea { width: 100%; min-height: 240px; margin-top: 24px; padding: 22px; border: 1px solid var(--line); border-radius: 0; resize: vertical; color: #e7e9e2; background: #20221e; font: 12px/1.65 ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.decision-bar { display: grid; grid-template-columns: 1fr auto auto; gap: 24px; align-items: center; padding: 30px 48px; background: #e8e4d9; }
.decision-bar strong { font-size: 18px; }
.decision-bar p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }

.limits { padding: 42px 48px; }
.limit-list { margin-top: 34px; border-top: 1px solid var(--line); }
.limit-list p { display: grid; grid-template-columns: 52px 1fr; gap: 16px; margin: 0; padding: 18px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.limit-list span { color: var(--accent); font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
footer { display: flex; justify-content: space-between; gap: 24px; padding: 28px 4vw; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; background: var(--paper); }

@media (max-width: 760px) {
  .topbar { grid-template-columns: 1fr auto; }
  .privacy-state { display: none; }
  .intro { padding: 48px 0 42px; }
  h1 { font-size: clamp(46px, 14vw, 68px); }
  .lede { margin-top: 24px; }
  .workspace-head, .result-head, .receipt-head { align-items: flex-start; flex-direction: column; }
  .workspace-head .text-button { order: 2; }
  .drop-zone { grid-template-columns: 1fr; min-height: 0; padding: 24px; text-align: left; }
  .drop-icon { display: none; }
  .primary-button { width: 100%; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric { min-width: 0; padding: 18px; }
  .metric strong { overflow-wrap: anywhere; }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .findings-section { grid-template-columns: 1fr; gap: 18px; }
  .finding { padding: 17px; }
  .finding > div { align-items: flex-start; }
  .result-head, .findings-section, .receipt-section, .decision-bar, .limits { padding: 28px 22px; }
  textarea { min-height: 300px; overflow-wrap: anywhere; white-space: pre-wrap; }
  .decision-bar { grid-template-columns: 1fr; }
  .decision-bar .secondary-button { justify-self: stretch; }
  .fine-print, footer { font-size: 13px; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}