:root {
  --bg: #f6f8f5;
  --card: #ffffff;
  --ink: #182522;
  --quiet: #58655f;
  --faint: #7d8a84;
  --line: #dce5df;
  --soft: #eef3ef;
  --accent: #174b3b;
  --accent-hover: #123d30;
  --accent-ink: #ffffff;
  --accent-tint: #e6efe9;
  --ok: #1b7a4e;
  --warn: #8a5a00;
  --bad: #b3261e;
  --demo: #6b46c1;
  --notice-bg: #fff9eb;
  --notice-line: #f0dfba;
  --notice-ink: #705a28;
  --shadow: 0 12px 36px rgba(25, 54, 42, 0.08);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1412; --card: #151e1b; --ink: #e8efeb; --quiet: #a3b1aa; --faint: #82918a;
    --line: #2a3833; --soft: #1b2622; --accent: #5ec79c; --accent-hover: #74d5ad; --accent-ink: #062018;
    --accent-tint: #18302a; --ok: #5ec79c; --warn: #f0b44c; --bad: #ff7a70; --demo: #b9a2ff;
    --notice-bg: #241f12; --notice-line: #4a3d1e; --notice-ink: #e9d6a4; --shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
  }
}
:root[data-theme="dark"] {
  --bg: #0d1412; --card: #151e1b; --ink: #e8efeb; --quiet: #a3b1aa; --faint: #82918a;
  --line: #2a3833; --soft: #1b2622; --accent: #5ec79c; --accent-hover: #74d5ad; --accent-ink: #062018;
  --accent-tint: #18302a; --ok: #5ec79c; --warn: #f0b44c; --bad: #ff7a70; --demo: #b9a2ff;
  --notice-bg: #241f12; --notice-line: #4a3d1e; --notice-ink: #e9d6a4; --shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
.mono { font-family: var(--mono); font-size: 12.5px; }
[hidden] { display: none !important; }

/* ------------------------------------------------------------ top bar */
.topbar { border-top: 4px solid var(--accent); }
.topbar-in {
  max-width: 928px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; gap: 20px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark {
  width: 28px; height: 28px; border-radius: 9px; background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 750; font-size: 15px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 750; font-size: 15px; letter-spacing: -0.03em; }
.brand-sub { font-size: 9.5px; font-weight: 650; letter-spacing: 0.12em; text-transform: uppercase; color: var(--quiet); }
.topnav { display: flex; gap: 4px; margin-left: auto; margin-right: auto; }
.topnav a { color: var(--quiet); text-decoration: none; font-weight: 600; font-size: 14px; padding: 7px 11px; border-radius: 9px; }
.topnav a:hover, .topnav a.on { background: var(--accent-tint); color: var(--accent); }
.pill {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; white-space: nowrap;
  color: var(--notice-ink); background: var(--notice-bg); border: 1.25px solid var(--notice-line); border-radius: 999px; padding: 5px 11px;
}

/* ------------------------------------------------------------ hero */
.wrap { max-width: 928px; margin: 0 auto; padding: 0 16px; }
.hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center; padding: 56px 0 40px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.eyebrow::before { content: ""; width: 18px; height: 2px; background: var(--accent); }
.hero h1 { font-size: 62px; line-height: 0.98; font-weight: 750; letter-spacing: -0.055em; margin: 0 0 20px; }
.lede { font-size: 18px; line-height: 1.5; color: var(--quiet); margin: 0 0 24px; max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-note { font-size: 12.5px; color: var(--quiet); margin: 12px 0 0; }

.hero-art {
  position: relative; min-height: 244px; border-radius: 20px; overflow: hidden;
  background: linear-gradient(135deg, var(--accent-tint), color-mix(in srgb, var(--accent-tint) 60%, var(--bg)));
}
.orb {
  position: absolute; right: -60px; top: 10px; width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #f3fbe6 0%, #bfe0c6 45%, #8cc49e 100%);
  box-shadow: inset 0 0 0 1px rgba(23, 75, 59, 0.15);
}
.orb::after { content: ""; position: absolute; inset: 14px; border-radius: 50%; border: 1px solid rgba(23, 75, 59, 0.35); }
.sample {
  position: absolute; left: 20px; top: 20px; width: min(260px, 72%); background: var(--card); border-radius: 12px;
  padding: 16px 16px 14px; box-shadow: var(--shadow);
}
.sample-eyebrow { margin: 0 0 6px; font-size: 9.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.sample-title { margin: 0 0 12px; font-size: 16px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; }
.sample-kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; margin: 0; font-family: var(--mono); font-size: 10.5px; }
.sample-kv dt { font-weight: 700; }
.sample-kv dd { margin: 0; color: var(--quiet); }
.stamp {
  position: absolute; right: 16px; bottom: 14px; width: 58px; height: 58px; border-radius: 50%;
  border: 1.25px solid var(--accent); display: grid; place-items: center; text-align: center;
  font-size: 7.5px; font-weight: 800; line-height: 1.15; letter-spacing: 0.05em; text-transform: uppercase; color: var(--accent);
  transform: rotate(-12deg); background: color-mix(in srgb, var(--card) 40%, transparent);
}

/* ------------------------------------------------------------ notice */
.notice {
  display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--notice-ink);
  background: var(--notice-bg); border: 1.25px solid var(--notice-line); border-radius: 12px; padding: 11px 14px; margin-bottom: 20px;
}
.notice p { margin: 0; }
.notice-icon { line-height: 1.5; }

/* ------------------------------------------------------------ buttons */
.btn {
  appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-size: 15px; font-weight: 700; text-decoration: none; cursor: pointer;
  border-radius: 10px; padding: 11px 16px; border: 1.25px solid transparent; line-height: 1.2;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 5px 12px rgba(23, 75, 59, 0.13); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { background: #97a59f; box-shadow: none; cursor: default; }
.btn-secondary { background: var(--card); color: var(--accent); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-sm { font-size: 13px; padding: 8px 14px; }
.btn-block { width: 100%; }
.btn-link { background: none; color: var(--quiet); font-weight: 500; font-size: 14px; text-decoration: underline; padding: 8px; }
.btn.is-disabled { opacity: 0.55; cursor: default; }
.btn:focus-visible, .drop:focus-visible, .pick:focus-within, .tabs button:focus-visible, .topnav a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

/* ------------------------------------------------------------ panel */
.panel { background: var(--card); border: 1.25px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); margin-bottom: 40px; scroll-margin-top: 16px; }
.panel-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 22px 22px 6px; }
.panel-head h2 { margin: 0; font-size: 23px; font-weight: 700; letter-spacing: -0.035em; }
.panel-sub { margin: 4px 0 0; color: var(--quiet); font-size: 13.5px; }
.micro { font-size: 10.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--quiet); white-space: nowrap; }

.tabs { display: flex; gap: 4px; padding: 10px 22px 0; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button {
  appearance: none; border: 0; background: none; font: inherit; font-size: 14px; font-weight: 600; color: var(--quiet);
  padding: 10px 10px 11px; cursor: pointer; white-space: nowrap; border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tabs button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.pane { padding: 20px 22px 22px; }

.commit-grid { display: grid; grid-template-columns: 1fr 240px; gap: 18px; }
.drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; text-align: center;
  min-height: 166px; padding: 20px; border: 1.25px dashed #b9c7bf; border-radius: 12px; cursor: pointer;
  background: color-mix(in srgb, var(--soft) 45%, var(--card)); transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-tint); }
.drop-icon {
  width: 32px; height: 32px; border-radius: 9px; background: var(--accent-tint); color: var(--accent);
  display: grid; place-items: center; font-weight: 700; margin-bottom: 6px;
}
.drop-main { font-weight: 700; font-size: 15px; }
.drop-sub { color: var(--quiet); font-size: 12.5px; margin-bottom: 8px; }

.side .privacy { background: var(--accent-tint); border-radius: 12px; padding: 13px 14px; font-size: 12.5px; color: var(--quiet); }
.privacy p { margin: 0; }
.privacy-check { color: var(--accent) !important; font-weight: 700; margin-bottom: 4px !important; }
.privacy-title { color: var(--ink) !important; font-weight: 700; font-size: 13.5px; margin-bottom: 4px !important; }
.side-label { margin: 16px 0 8px; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: 9px; font-size: 13px; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 20px 1fr; gap: 8px; align-items: start; }
.steps li::before {
  content: counter(s); width: 20px; height: 20px; border-radius: 6px; background: var(--accent-tint); color: var(--accent);
  font-weight: 700; font-size: 11.5px; display: grid; place-items: center;
}

.filelist:not(:empty) { margin-top: 16px; }
.filelist-head { display: flex; justify-content: space-between; padding: 0 2px 8px; border-bottom: 1px solid var(--line); }
.frow { display: grid; grid-template-columns: 36px 1fr auto 28px; gap: 10px; align-items: center; padding: 10px 2px; border-bottom: 1px solid var(--line); }
.ftype {
  width: 32px; height: 32px; border-radius: 8px; background: var(--soft); color: var(--accent);
  display: grid; place-items: center; font-size: 9px; font-weight: 800; letter-spacing: 0.02em; overflow: hidden;
}
.finfo { min-width: 0; }
.fname { font-weight: 650; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fmeta { font-size: 12px; color: var(--quiet); }
.fhash { font-family: var(--mono); font-size: 10.5px; color: var(--faint); overflow-wrap: anywhere; }
.fsize { font-size: 12.5px; color: var(--quiet); white-space: nowrap; }
.fremove { appearance: none; border: 0; background: none; color: var(--faint); font-size: 18px; cursor: pointer; border-radius: 6px; width: 28px; height: 28px; }
.fremove:hover { background: var(--soft); color: var(--ink); }
.frow.bad .fmeta, .frow.bad .fhash { color: var(--bad); }
.frow.busy .fmeta::after { content: " · computing…"; }

.bar { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.bar-note { margin: 0; font-size: 12.5px; color: var(--quiet); flex: 1 1 260px; }
.bar-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.terms { font-size: 13.5px; color: var(--quiet); display: flex; gap: 7px; align-items: center; }
.terms input { width: 17px; height: 17px; accent-color: var(--accent); }
.turnstile:empty { display: none; }
.keep { margin: 12px 0 0; font-size: 12.5px; color: var(--faint); }
.keep:empty { display: none; }
.message { margin-top: 12px; font-size: 14px; }
.message:empty { display: none; }
.message.bad { color: var(--bad); }

/* verify */
.verify-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.vbox { border: 1.25px solid var(--line); border-radius: 12px; padding: 14px 15px 16px; }
.vbox h3 { margin: 0 0 4px; font-size: 15px; }
.vbox p { margin: 0 0 12px; font-size: 13px; color: var(--quiet); }
.pick {
  display: inline-block; cursor: pointer; font-size: 13px; font-weight: 600; color: var(--ink);
  border: 1.25px dashed #b9c7bf; border-radius: 9px; padding: 9px 13px; background: color-mix(in srgb, var(--soft) 45%, var(--card));
  max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pick:hover { border-color: var(--accent); }
.pick.set { border-style: solid; border-color: var(--accent); background: var(--accent-tint); color: var(--accent); }

.results { margin-top: 14px; display: grid; gap: 12px; }
.result { border-radius: 12px; padding: 14px 16px; border: 1.25px solid var(--line); }
.result h3 { margin: 0 0 4px; font-size: 17px; }
.result p { margin: 4px 0; font-size: 14px; }
.result .mono { overflow-wrap: anywhere; color: var(--quiet); }
.result.ok { border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); background: color-mix(in srgb, var(--ok) 5%, var(--card)); }
.result.ok h3 { color: var(--ok); }
.result.bad h3 { color: var(--bad); }
.result.warn h3 { color: var(--warn); }
.result.demo { border-color: color-mix(in srgb, var(--demo) 35%, var(--line)); }
.result.demo h3 { color: var(--demo); }

/* plans */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.plan { border: 1.25px solid var(--line); border-radius: 14px; padding: 18px; display: flex; flex-direction: column; }
.plan-main { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.plan-name { margin: 0; font-weight: 700; font-size: 15px; }
.plan-price { margin: 6px 0 4px; color: var(--quiet); font-size: 13.5px; }
.plan-price b { font-size: 26px; color: var(--ink); letter-spacing: -0.03em; }
.plan-for { margin: 0 0 12px; font-size: 13px; color: var(--quiet); }
.plan ul { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 6px; align-content: start; font-size: 13px; flex: 1; }
.plan li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 7px; }
.plans-note { margin: 16px 0 0; padding: 11px 14px; border-radius: 12px; background: var(--accent-tint); font-size: 13px; color: var(--ink); }

/* ------------------------------------------------------------ footer */
.foot { border-top: 1px solid var(--line); }
.foot-in { max-width: 928px; margin: 0 auto; padding: 22px 16px 40px; display: flex; justify-content: space-between; gap: 24px; font-size: 12.5px; color: var(--quiet); }
.foot-in p { margin: 0 0 3px; }
.foot-brand { font-weight: 700; color: var(--ink); }
.foot-links a, .foot a { color: var(--quiet); }
.foot-claim { max-width: 440px; text-align: right; }

/* ------------------------------------------------------------ receipt + documents */
.doc { max-width: 720px; margin: 0 auto; padding: 36px 16px 48px; }
.doc h1 { font-size: 36px; letter-spacing: -0.045em; line-height: 1.05; margin: 0 0 8px; }
.doc h2 { font-size: 19px; letter-spacing: -0.02em; margin: 28px 0 8px; }
.doc h2.flush { margin-top: 0; }
.doc p, .doc li { color: var(--ink); }
.doc .meta { color: var(--quiet); font-size: 13.5px; }
.footnote { margin-top: 22px; }
.card { background: var(--card); border: 1.25px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); padding: 22px; margin-top: 18px; }
.status { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 20px; letter-spacing: -0.02em; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--warn); }
.dot.ok { background: var(--ok); }
.dot.bad { background: var(--bad); }
.dot.pulse { animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .3; } }
@media (prefers-reduced-motion: reduce) { .dot.pulse { animation: none; } }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 7px 14px; font-size: 14px; margin: 16px 0 0; }
.kv dt { color: var(--quiet); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.buttons { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.banner-demo { background: color-mix(in srgb, var(--demo) 12%, transparent); color: var(--ink); border-radius: 12px; padding: 10px 14px; font-size: 14px; margin-top: 14px; }
.doc .filelist .frow { grid-template-columns: 36px 1fr auto; }

/* ------------------------------------------------------------ small screens */
@media (max-width: 760px) {
  .topbar-in { flex-wrap: wrap; gap: 10px; }
  .topnav { order: 3; width: 100%; margin: 0; justify-content: flex-start; }
  .pill { margin-left: auto; font-size: 9px; padding: 4px 8px; letter-spacing: 0.06em; }
  .brand-sub { display: none; }
  .hero { grid-template-columns: 1fr; gap: 24px; padding: 32px 0 24px; }
  .hero h1 { font-size: 44px; }
  .lede { font-size: 16.5px; }
  .hero-art { display: none; }
  .panel-head .micro { display: none; }
  .commit-grid, .verify-grid, .plans { grid-template-columns: 1fr; }
  .panel-head, .pane { padding-left: 16px; padding-right: 16px; }
  .tabs { padding-left: 12px; padding-right: 12px; }
  .bar-actions { width: 100%; justify-content: stretch; }
  .bar-actions .btn-primary { flex: 1 1 100%; }
  .foot-in { flex-direction: column; }
  .foot-claim { text-align: left; }
  .kv { grid-template-columns: 1fr; gap: 1px; }
  .kv dd { margin-bottom: 8px; }
  .hero-actions .btn { flex: 1 1 auto; }
}

.go-hint { flex-basis: 100%; text-align: right; font-size: 12.5px; color: var(--quiet); }
.go-hint:empty { display: none; }
@media (max-width: 760px) { .go-hint { text-align: left; } }