:root {
  --ground: #f4f4f2;
  --surface: #fff;
  --sunk: #ebebe8;
  --ink: #17181a;
  --ink-soft: #52565c;
  --ink-faint: #82878e;
  --line: #dcdcd8;
  --accent: #1f6f5c;
  --accent-soft: #e4f0ec;
  --pass: #23724f;
  --pass-bg: #e6f2ec;
  --warn: #96650f;
  --warn-bg: #f8efdc;
  --fail: #b03f2e;
  --fail-bg: #f9e7e3;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #131416;
    --surface: #1b1d20;
    --sunk: #232629;
    --ink: #e8e9ea;
    --ink-soft: #a9aeb4;
    --ink-faint: #7d838a;
    --line: #2d3035;
    --accent: #5fbba0;
    --accent-soft: #172a25;
    --pass: #63c294;
    --pass-bg: #16291f;
    --warn: #dba955;
    --warn-bg: #2b2415;
    --fail: #e2806d;
    --fail-bg: #2e1e1a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 20px 80px;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.masthead, main, footer { max-width: 940px; margin: 0 auto; }
.masthead { padding: 52px 0 30px; }

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.lede { margin: 0 0 16px; font-size: 17px; color: var(--ink-soft); max-width: 60ch; }
.privacy { margin: 0; font-size: 14px; color: var(--ink-faint); }
.prose { max-width: 66ch; color: var(--ink-soft); }

/* ---------- dropzone ---------- */
.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 44px 24px;
  border: 2px dashed var(--line);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.drop-icon { font-size: 30px; }
.drop-title { font-weight: 600; font-size: 16px; }
.drop-sub { font-size: 13px; color: var(--ink-faint); font-family: var(--mono); }

/* ---------- empty state ---------- */
.empty { margin-top: 34px; }
.empty h2 { font-size: 18px; margin: 0 0 14px; }

.what { list-style: none; margin: 0 0 26px; padding: 0; display: grid; gap: 1px;
        background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.what li { background: var(--surface); padding: 14px 16px; display: flex; flex-direction: column; gap: 3px; }
.what b { font-size: 14.5px; }
.what span { font-size: 14px; color: var(--ink-soft); }

.tip { border-left: 3px solid var(--accent); background: var(--accent-soft);
       padding: 14px 18px; border-radius: 0 6px 6px 0; }
.tip h3 { margin: 0 0 6px; font-size: 14px; }
.tip p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }

/* ---------- results ---------- */
#results { margin-top: 30px; display: flex; flex-direction: column; gap: 22px; }

.filebar { font-family: var(--mono); font-size: 13px; color: var(--ink-faint); }

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
  gap: 1px;
}
.fact { background: var(--surface); padding: 12px 14px; display: flex; flex-direction: column; gap: 2px; }
.fact-k { font-size: 11px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-faint); }
.fact-v { font-family: var(--mono); font-size: 15px; font-variant-numeric: tabular-nums; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 14px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card-pass { border-left-color: var(--pass); }
.card-warn { border-left-color: var(--warn); }
.card-fail { border-left-color: var(--fail); }

.card header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.card-title h3 { margin: 0; font-size: 16px; }
.product { font-size: 12px; color: var(--ink-faint); font-family: var(--mono); }

.badge { font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 11px; white-space: nowrap; }
.badge-pass { background: var(--pass-bg); color: var(--pass); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-fail { background: var(--fail-bg); color: var(--fail); }

.dpi-row { display: flex; align-items: center; gap: 12px; padding: 10px 12px; background: var(--sunk); border-radius: 6px; }
.dpi-num { font-family: var(--mono); font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.dpi-lbl { font-size: 12px; color: var(--ink-soft); line-height: 1.35; }
.dim { color: var(--ink-faint); font-family: var(--mono); }

.issues { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.issue { display: flex; flex-direction: column; gap: 2px; padding-left: 12px; border-left: 2px solid var(--line); }
.issue b { font-size: 13.5px; }
.issue span { font-size: 13px; color: var(--ink-soft); }
.issue-pass { border-left-color: var(--pass); }
.issue-pass b { color: var(--pass); }
.issue-warn { border-left-color: var(--warn); }
.issue-warn b { color: var(--warn); }
.issue-fail { border-left-color: var(--fail); }
.issue-fail b { color: var(--fail); }

.note { margin: 0; font-size: 12.5px; color: var(--ink-faint); border-top: 1px solid var(--line); padding-top: 10px; }

/* ---------- fixer ---------- */
.fixer {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.fixer h2 { margin: 0; font-size: 18px; }

.btn {
  align-self: flex-start;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 16px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: var(--surface);
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: 0.6; cursor: progress; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-download { background: transparent; color: var(--accent); }

.shrink-result { margin-top: 12px; padding: 14px; border-radius: 6px; background: var(--sunk);
                 display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.shrink-result.ok { background: var(--pass-bg); }
.shrink-result.no { background: var(--warn-bg); }
.shrink-result p { margin: 0; font-size: 14px; color: var(--ink-soft); max-width: 62ch; }
.shrink-nums { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
               font-family: var(--mono); font-variant-numeric: tabular-nums; }
.shrink-nums .new { font-size: 20px; font-weight: 600; }
.shrink-nums .arrow { color: var(--ink-faint); }
.shrink-nums .delta { font-size: 13px; color: var(--ink-faint); }

footer { margin-top: 46px; padding-top: 18px; border-top: 1px solid var(--line); }
footer p { margin: 0; font-size: 13px; color: var(--ink-faint); max-width: 66ch; }

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

/* ================= site frame ================= */

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff; padding: 10px 16px; z-index: 10;
}
.skip:focus { left: 0; }

.site-head {
  max-width: 940px; margin: 0 auto; padding: 20px 0 10px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 17px; letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none;
}
.brand-mark { font-size: 19px; }
.site-head nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-head nav a {
  font-size: 14.5px; color: var(--ink-soft); text-decoration: none;
}
.site-head nav a:hover { color: var(--accent); }
.site-head a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

main { max-width: 940px; margin: 0 auto; }

.hero, .page-head { padding: 46px 0 26px; }
.page { display: flex; flex-direction: column; }

.block { margin-top: 36px; }
.block h2 {
  font-size: 20px; margin: 0 0 14px; letter-spacing: -0.01em;
  padding-bottom: 8px; border-bottom: 1px solid var(--line);
}
.block > .prose { font-size: 15.5px; }

.bullets { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 9px; }
.bullets li { font-size: 15px; color: var(--ink-soft); max-width: 68ch; }
.bullets strong { color: var(--ink); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
th, td { text-align: left; padding: 11px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: none; }
th[scope="row"] { font-weight: 600; color: var(--ink); width: 38%; white-space: nowrap; }
td { color: var(--ink-soft); font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------- callout ---------- */
.callout {
  margin-top: 24px; padding: 15px 18px; border-radius: 0 7px 7px 0;
  border-left: 3px solid var(--warn); background: var(--warn-bg);
  display: flex; flex-direction: column; gap: 5px;
}
.callout b { font-size: 15px; color: var(--warn); }
.callout p { margin: 0; font-size: 14.5px; color: var(--ink-soft); max-width: 68ch; }
.callout-info { border-left-color: var(--accent); background: var(--accent-soft); }
.callout-info b { color: var(--accent); }

/* ---------- steps ---------- */
.steps { list-style: none; counter-reset: s; margin: 0; padding: 0;
         display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.steps li {
  counter-increment: s; background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; padding: 16px 18px; display: flex; flex-direction: column; gap: 5px;
}
.steps li::before {
  content: counter(s); font-family: var(--mono); font-size: 12px; font-weight: 600;
  color: var(--accent); letter-spacing: 0.08em;
}
.steps b { font-size: 15px; }
.steps span { font-size: 14px; color: var(--ink-soft); }

/* ---------- cards ---------- */
.prop-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.prop { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; }
.prop h3 { margin: 0 0 7px; font-size: 15px; line-height: 1.35; }
.prop p { margin: 0; font-size: 14px; color: var(--ink-soft); }

.limits .bullets li { color: var(--ink-soft); }

/* ---------- pricing ---------- */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-top: 6px; }
.plan {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: 10px; padding: 20px; display: flex; flex-direction: column; gap: 12px;
}
.plan-hl { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.plan-badge {
  position: absolute; top: -10px; left: 18px; font-size: 11.5px; font-weight: 600;
  padding: 3px 10px; border-radius: 10px; background: var(--accent); color: #fff;
}
.plan h3 { margin: 0; font-size: 16px; }
.plan-price { margin: 0; display: flex; align-items: baseline; gap: 6px; }
.plan-price b { font-family: var(--mono); font-size: 30px; letter-spacing: -0.03em; }
.plan-price span { font-size: 13px; color: var(--ink-faint); }
.plan ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.plan li { font-size: 14px; color: var(--ink-soft); padding-left: 18px; position: relative; }
.plan li::before { content: '·'; position: absolute; left: 6px; color: var(--accent); font-weight: 700; }
.honesty { margin: 14px 0 0; font-size: 13.5px; color: var(--ink-faint); max-width: 66ch; }

/* ---------- FAQ ---------- */
.faq { display: flex; flex-direction: column; gap: 1px; background: var(--line);
       border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.faq details { background: var(--surface); }
.faq summary {
  cursor: pointer; padding: 14px 16px; font-size: 15px; font-weight: 600;
  list-style: none; display: flex; justify-content: space-between; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--ink-faint); font-weight: 400; }
.faq details[open] summary::after { content: '−'; }
.faq summary:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.faq p { margin: 0; padding: 0 16px 15px; font-size: 14.5px; color: var(--ink-soft); max-width: 70ch; }

/* ---------- link grid / related ---------- */
.link-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; }
.link-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  padding: 13px 16px; text-decoration: none; display: flex; flex-direction: column; gap: 3px;
}
.link-card:hover { border-color: var(--accent); }
.link-card b { font-size: 14.5px; color: var(--ink); }
.link-card span { font-size: 13px; color: var(--ink-faint); }
.link-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.related {
  margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line);
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
}
.related b { font-size: 12px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-faint); }
.related a { font-size: 14.5px; color: var(--accent); }

.cta-block {
  margin-top: 40px; padding: 26px; border-radius: 10px;
  background: var(--accent-soft); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 8px; align-items: flex-start;
}
.cta-block h2 { margin: 0; font-size: 19px; border: none; padding: 0; }
.cta-block p { margin: 0 0 6px; font-size: 14.5px; color: var(--ink-soft); }

/* ---------- tool mount ---------- */
.tool-mount { margin-top: 8px; }
.tool-hint { margin-top: 14px; }
.tool-hint p { margin: 0; font-size: 14px; color: var(--ink-faint); max-width: 68ch; }

/* ---------- footer ---------- */
.site-foot {
  max-width: 940px; margin: 70px auto 0; padding-top: 26px;
  border-top: 1px solid var(--line);
}
.foot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 22px; }
.foot-col { display: flex; flex-direction: column; gap: 7px; }
.foot-col h2 {
  margin: 0 0 3px; font-size: 11.5px; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--ink-faint); border: none; padding: 0;
}
.foot-col a { font-size: 14px; color: var(--ink-soft); text-decoration: none; }
.foot-col a:hover { color: var(--accent); }
.foot-note { margin: 24px 0 0; font-size: 13px; color: var(--ink-faint); max-width: 70ch; }

@media (max-width: 600px) {
  .hero, .page-head { padding: 32px 0 20px; }
  .site-head { padding-top: 16px; }
}

/* ---------- checkout ---------- */
.checkout-form { display: flex; flex-direction: column; gap: 20px; max-width: 480px; }

.plan-picker { border: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.plan-picker legend {
  padding: 0 0 8px; font-size: 11.5px; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--ink-faint);
}
.plan-opt {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 13px 15px; background: var(--surface); cursor: pointer;
}
.plan-opt:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.plan-opt:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
.plan-opt-name { font-weight: 600; font-size: 15px; flex: 1; }
.plan-opt-price { font-family: var(--mono); font-size: 15px; font-variant-numeric: tabular-nums; }
.plan-opt-price i { font-style: normal; font-size: 12px; color: var(--ink-faint); }

.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: 14px; font-weight: 600; }
.field input {
  font: inherit; font-size: 15px; padding: 11px 13px;
  border: 1px solid var(--line); border-radius: 7px;
  background: var(--surface); color: var(--ink);
}
.field input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field small { font-size: 12.5px; color: var(--ink-faint); }

.co-msg { margin: 0; font-size: 14px; min-height: 1.2em; }
.co-msg-bad { color: var(--fail); }

/* ---------- pro workspace ---------- */
.pro {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.pro > h2 {
  font-size: 20px; margin: 0 0 14px; letter-spacing: -0.01em;
  padding-bottom: 8px; border-bottom: 1px solid var(--line);
}

.pro-gate { display: flex; flex-direction: column; gap: 16px; }
.pro-unlock {
  display: flex; flex-direction: column; gap: 12px;
  align-items: flex-start; max-width: 420px;
  padding: 16px 18px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--surface);
}
.pro-unlock .field { width: 100%; }

.bt-drop {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 26px 20px; border: 2px dashed var(--line); border-radius: 9px;
  background: var(--surface); cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease;
}
.bt-drop:hover { border-color: var(--accent); background: var(--accent-soft); }
.bt-drop:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }
.bt-drop-title { font-weight: 600; font-size: 15px; }
.bt-drop-sub { font-size: 13px; color: var(--ink-faint); }

.bt-status { margin: 12px 0 0; font-size: 13.5px; color: var(--ink-soft); min-height: 1.2em; font-family: var(--mono); }
.bt-summary { margin: 10px 0 0; font-size: 14px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.bt-summary:empty { margin: 0; }

#bt-table { margin-top: 14px; }
#bt-table table { font-size: 13.5px; }
#bt-table th { white-space: nowrap; font-size: 11px; letter-spacing: 0.06em;
               text-transform: uppercase; color: var(--ink-faint); background: var(--sunk); }
#bt-table td { font-family: var(--sans); color: var(--ink-soft); }
#bt-table .bt-name { font-family: var(--mono); font-size: 12.5px; color: var(--ink);
                     max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#bt-table .bt-err td { color: var(--fail); }

.bt-actions { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }

.btn-disabled {
  align-self: flex-start;
  font-size: 14px; font-weight: 600; padding: 9px 16px;
  border: 1px dashed var(--line); border-radius: 6px;
  background: transparent; color: var(--ink-faint); cursor: not-allowed;
}