:root {
  color-scheme: light dark;
  --bg: #f7f5ef;
  --surface: #ffffff;
  --surface-2: #efece3;
  --ink: #1d2320;
  --ink-2: #4e5852;
  --line: #d9d5c8;
  --accent: #0f5c4d;
  --accent-ink: #ffffff;
  --accent-soft: #dcebe5;
  --critical: #a32626;
  --critical-soft: #f8e4e1;
  --warning: #8a5a00;
  --warning-soft: #f7ecd2;
  --info: #2c5a8c;
  --info-soft: #e1ebf5;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151917;
    --surface: #1e2421;
    --surface-2: #272e2a;
    --ink: #eceee9;
    --ink-2: #aab3ad;
    --line: #38403b;
    --accent: #6fcdb4;
    --accent-ink: #0d211b;
    --accent-soft: #1d3a32;
    --critical: #f19a90;
    --critical-soft: #3d2120;
    --warning: #e7bd67;
    --warning-soft: #3a2f16;
    --info: #94bdeb;
    --info-soft: #1f2e40;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); margin: 0 0 16px; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0 0 12px; }
h3 { font-size: 1.05rem; margin: 0 0 6px; }
p { margin: 0 0 14px; }
code { font-family: var(--mono); font-size: 0.92em; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 16px; }
.site-head { border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
.site-head nav { display: flex; gap: 16px; font-size: 0.95rem; flex-wrap: wrap; }
.site-foot { border-top: 1px solid var(--line); margin-top: 56px; padding: 24px 0 40px; color: var(--ink-2); font-size: 0.9rem; }

.btn { display: inline-block; padding: 11px 18px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); font: 600 1rem var(--sans); text-decoration: none; cursor: pointer; }
.btn:hover { filter: brightness(1.08); }
.btn.secondary { background: transparent; color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; filter: none; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* Landing page */
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; padding: 56px 0 48px; }
.lede { font-size: 1.15rem; color: var(--ink-2); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.fine { font-size: 0.9rem; color: var(--ink-2); }

.diff { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); font-family: var(--mono); font-size: 0.85rem; overflow: hidden; }
.diff-title { padding: 10px 14px; background: var(--surface-2); color: var(--ink-2); border-bottom: 1px solid var(--line); }
.diff-row { display: grid; grid-template-columns: 96px 1fr; gap: 10px; padding: 8px 14px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.diff-row:last-child { border-bottom: 0; }
.diff-row .k { color: var(--ink-2); }
.diff-row.bad { background: var(--critical-soft); }
.diff-row.bad .v { color: var(--critical); font-weight: 600; }
.diff-row.ok .v { color: var(--ink); }

.section { padding: 34px 0; border-top: 1px solid var(--line); }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cols-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card p:last-child { margin-bottom: 0; }
.source { font-size: 0.85rem; color: var(--ink-2); }
.checks { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 28px; }
.checks li { padding-left: 20px; position: relative; }
.checks li::before { content: ""; position: absolute; left: 2px; top: 0.62em; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.shots { display: grid; gap: 24px; max-width: 900px; margin-top: 20px; }
.actions + .fine { margin-top: 12px; }
.cols-3 + .source { margin-top: 14px; }
.shot { border: 1px solid var(--line); border-radius: var(--radius); display: block; width: 100%; height: auto; }
figure { margin: 0; }
figcaption { font-size: 0.88rem; color: var(--ink-2); margin-top: 8px; }

.waitlist { max-width: 520px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 600; margin-bottom: 4px; }
.field input[type="email"], .field select { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font: inherit; }
.check-line { display: flex; gap: 10px; align-items: flex-start; }
.check-line input { margin-top: 5px; flex: none; }
.field label.plain { font-weight: 400; margin: 0; }
.honey { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status { margin-top: 12px; padding: 10px 12px; border-radius: 8px; background: var(--surface-2); }
.status:empty { display: none; }

/* Checker */
.tool-head { padding: 34px 0 10px; }
.picker-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.drop { display: block; background: var(--surface); border: 2px dashed var(--line); border-radius: var(--radius); padding: 18px; cursor: pointer; }
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop:focus-within { border-color: var(--accent); }
.drop strong { display: block; margin-bottom: 4px; }
.drop .hint { color: var(--ink-2); font-size: 0.92rem; display: block; margin-bottom: 10px; }
.drop input[type="file"] { width: 100%; font: inherit; color: var(--ink-2); }
.drop .file-name { display: block; margin-top: 8px; font-family: var(--mono); font-size: 0.88rem; overflow-wrap: anywhere; }

.controls { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; margin: 18px 0; }
.controls label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 4px; }
.controls input[type="number"] { width: 110px; padding: 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font: inherit; }

.privacy-note { background: var(--accent-soft); border-radius: var(--radius); padding: 12px 14px; font-size: 0.95rem; margin-bottom: 18px; }
.error-box { background: var(--critical-soft); color: var(--critical); border-radius: 8px; padding: 12px 14px; margin: 12px 0; }

.results { margin-top: 26px; }
.results-head { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 14px; }
.stat { border-radius: var(--radius); padding: 14px; border: 1px solid var(--line); background: var(--surface); }
.stat b { display: block; font-size: 1.9rem; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat.critical b { color: var(--critical); }
.stat.warning b { color: var(--warning); }
.stat.info b { color: var(--info); }
.scope { color: var(--ink-2); font-size: 0.92rem; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.chip { border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 999px; padding: 6px 12px; font: 0.88rem var(--sans); cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.table-box { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; min-width: 820px; }
th { text-align: left; background: var(--surface-2); position: sticky; top: 0; font-size: 0.82rem; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
td.mono { font-family: var(--mono); font-size: 0.84rem; overflow-wrap: anywhere; max-width: 210px; }
.sev { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.sev.critical { background: var(--critical-soft); color: var(--critical); }
.sev.warning { background: var(--warning-soft); color: var(--warning); }
.sev.info { background: var(--info-soft); color: var(--info); }
.arrow { color: var(--ink-2); }
.blank-marker { color: var(--critical); font-style: italic; font-family: var(--sans); }
.limits { margin-top: 26px; }
.limits ul { margin: 8px 0 0; padding-left: 20px; }
.limits li { margin-bottom: 6px; }

.prose { max-width: 720px; padding: 34px 0; }
.prose h2 { margin-top: 26px; font-size: 1.25rem; }

@media (max-width: 800px) {
  .hero, .cols-3, .cols-2, .picker-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 36px; gap: 26px; }
  .checks { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .stat-row { grid-template-columns: 1fr; }
  .stat { display: flex; align-items: baseline; gap: 10px; padding: 10px 14px; }
  .stat b { font-size: 1.4rem; }
}

/* Planned app landing page */
.eyebrow { display: inline-block; font-size: 0.85rem; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 4px 10px; border-radius: 999px; margin: 0 0 14px; }
.flow { list-style: none; counter-reset: flow; margin: 0; padding: 0; display: grid; gap: 10px; }
.flow li { counter-increment: flow; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px 12px 52px; position: relative; }
.flow li::before { content: counter(flow); position: absolute; left: 14px; top: 12px; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 700; font-size: 0.88rem; }
.flow strong { display: block; }
.flow span { color: var(--ink-2); font-size: 0.93rem; }
.plain-list { margin: 0; padding-left: 20px; }
.plain-list li { margin-bottom: 8px; }
.price { font-size: 1.1rem; margin-bottom: 10px; }
.price strong { font-size: 2.3rem; }

.demo { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.demo-note { background: var(--warning-soft); border-radius: 8px; padding: 10px 12px; }
.demo-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 14px; }
.demo-step { border: 1px solid var(--line); background: var(--surface-2); color: var(--ink); border-radius: 8px; padding: 9px 6px; font: 600 0.92rem var(--sans); cursor: pointer; }
.demo-step[aria-current="step"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.demo-intro { margin-bottom: 8px; }
.demo-status { font-weight: 600; margin-bottom: 12px; }
.demo-percent { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.demo-percent[hidden] { display: none; }
.demo-percent select { padding: 7px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font: inherit; }
.demo-table { min-width: 620px; }
.demo-controls { display: flex; justify-content: space-between; gap: 10px; margin-top: 14px; }
.demo-tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; white-space: nowrap; }
.demo-tag.good { background: var(--accent-soft); color: var(--accent); }
.demo-tag.attention { background: var(--critical-soft); color: var(--critical); }
.demo-tag.neutral { background: var(--surface-2); color: var(--ink-2); }

.field textarea, .field input[type="text"] { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font: inherit; }
fieldset.field { border: 0; padding: 0; margin-inline: 0; }
fieldset.field legend { font-weight: 600; padding: 0; margin-bottom: 6px; }
.radio-row { display: flex; gap: 18px; flex-wrap: wrap; }
.radio-row label { display: flex; gap: 6px; align-items: center; font-weight: 400; margin: 0; }
.field .fine { margin: 4px 0 0; }
@media (max-width: 560px) {
  .demo-steps { grid-template-columns: repeat(2, 1fr); }
  .demo { padding: 14px; }
}