:root {
  --paper: #f6f2ea;
  --paper-2: #efeadf;
  --ink: #1c1a16;
  --ink-soft: #5c564b;
  --line: #d9d2c3;
  --accent: #e4572e;
  --accent-dark: #b83e1b;
  --teal: #14655c;
  --ok: #2e7d4f;
  --warn: #b98a1c;
  --bad: #c23a2b;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand svg { width: 30px; height: 30px; }
.brand b { font-family: var(--serif); font-size: 1.25rem; letter-spacing: -0.3px; }
.brand b i { font-style: normal; color: var(--accent); }
header nav a {
  color: var(--ink-soft); text-decoration: none; margin-left: 26px;
  font-size: 0.93rem; border-bottom: 1px solid transparent;
}
header nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }

.hero { padding: 40px 0 26px; }
.kicker {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 2px;
  text-transform: uppercase; color: var(--teal); margin-bottom: 12px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.15;
  letter-spacing: -0.5px; max-width: 900px; margin-bottom: 14px;
}
.hero h1 .fix { color: var(--accent); border-bottom: 3px solid var(--accent); }
.hero p.sub { color: var(--ink-soft); font-size: 1.02rem; max-width: 620px; }

.scanbox {
  display: flex; flex-wrap: wrap; gap: 0; max-width: 740px;
  background: #fff; border: 2px solid var(--ink); border-radius: 4px;
  box-shadow: 5px 5px 0 var(--paper-2);
}
.scanbox input {
  flex: 1 1 210px; background: transparent; border: none; outline: none;
  color: var(--ink); font-family: var(--mono); font-size: 0.95rem;
  padding: 11px 16px; min-width: 0;
}
.scanbox input + input { border-left: 1px dashed var(--line); }
.scanbox input::placeholder { color: #a89f8d; }
.scanbox button {
  background: var(--accent); color: #fff; border: none;
  font-family: var(--mono); font-weight: 700; font-size: 0.92rem;
  padding: 11px 22px; cursor: pointer; letter-spacing: 0.5px;
}
.scanbox button:hover { background: var(--accent-dark); }
.scanbox button:disabled { opacity: 0.55; cursor: default; }
.formmsg { min-height: 1.3em; margin-top: 8px; font-size: 0.9rem; }
.formmsg.ok { color: var(--ok); }
.formmsg.err { color: var(--bad); }

/* ---- report card ---- */
#report { display: none; padding: 20px 0 10px; }
#report.visible { display: block; }
.reportcard {
  background: #fff; border: 2px solid var(--ink); border-radius: 6px;
  box-shadow: 6px 6px 0 var(--paper-2); overflow: hidden;
}
.rc-head {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 14px 22px; border-bottom: 2px solid var(--ink); background: var(--paper-2);
}
.rc-grade {
  width: 58px; height: 58px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 1.9rem; font-weight: 700; color: #fff;
  border: 3px solid var(--ink);
}
.rc-grade.g-A, .rc-grade.g-B { background: var(--ok); }
.rc-grade.g-C { background: var(--warn); }
.rc-grade.g-D { background: var(--accent); }
.rc-grade.g-F { background: var(--bad); }
.rc-head .rc-meta { flex: 1; min-width: 200px; }
.rc-head .rc-meta h2 { font-family: var(--serif); font-size: 1.3rem; letter-spacing: -0.3px; }
.rc-head .rc-meta h2 span { font-family: var(--mono); font-size: 1.05rem; color: var(--teal); }
.rc-head .rc-meta p { color: var(--ink-soft); font-size: 0.9rem; }
.rc-score { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-soft); text-align: right; }
.rc-score b { display: block; font-size: 1.6rem; color: var(--ink); }
.rc-body { padding: 4px 22px 18px; }
.finding { display: flex; gap: 14px; padding: 11px 0; border-bottom: 1px dashed var(--line); }
.finding:last-of-type { border-bottom: none; }
.sev {
  flex-shrink: 0; align-self: flex-start; margin-top: 3px;
  font-family: var(--mono); font-size: 0.68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
  padding: 3px 9px; border-radius: 3px; border: 1.5px solid;
}
.sev.critical { color: #fff; background: var(--bad); border-color: var(--bad); }
.sev.high { color: var(--bad); border-color: var(--bad); }
.sev.medium { color: var(--warn); border-color: var(--warn); }
.sev.low { color: var(--teal); border-color: var(--teal); }
.sev.info { color: var(--ink-soft); border-color: var(--line); }
.finding h4 { font-size: 0.96rem; margin-bottom: 2px; }
.finding p { color: var(--ink-soft); font-size: 0.88rem; }
.finding .fixline { margin-top: 4px; font-size: 0.85rem; }
.finding .fixline b { color: var(--teal); font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; }
.rc-clean { padding: 22px 0 6px; color: var(--ok); font-size: 1rem; }
.rc-cta {
  margin-top: 12px; padding: 12px 18px; background: var(--paper-2);
  border: 1px dashed var(--ink); border-radius: 4px; font-size: 0.92rem;
}
.rc-cta b { color: var(--accent); }

/* ---- features ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; padding: 30px 0; }
.card {
  background: #fff; border: 2px solid var(--ink); border-radius: 6px;
  padding: 20px; box-shadow: 4px 4px 0 var(--paper-2);
}
.card svg { width: 34px; height: 34px; margin-bottom: 10px; }
.card h3 { font-family: var(--serif); margin-bottom: 5px; font-size: 1.08rem; }
.card p { color: var(--ink-soft); font-size: 0.89rem; }

.how { padding: 8px 0 30px; }
.how h2, .diff h2, .scan h2 {
  font-family: var(--serif); font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  letter-spacing: -0.5px; margin-bottom: 18px;
}
.how h2::after, .diff h2::after, .scan h2::after {
  content: ""; display: block; width: 44px; height: 3px;
  background: var(--accent); margin-top: 8px;
}
.scan { padding: 4px 0 22px; }
.scan .note { color: var(--ink-soft); font-size: 0.82rem; margin-top: 4px; font-family: var(--mono); }
.scan .note span { margin-right: 18px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.step { border-left: 3px solid var(--teal); padding: 2px 0 2px 14px; }
.step .num { font-family: var(--mono); font-weight: 700; color: var(--teal); font-size: 0.78rem; letter-spacing: 2px; }
.step h4 { font-size: 1rem; margin: 3px 0 3px; }
.step p { color: var(--ink-soft); font-size: 0.88rem; }

.diff { padding: 0 0 44px; }
.tablewrap { border: 2px solid var(--ink); border-radius: 6px; overflow: hidden; box-shadow: 5px 5px 0 var(--paper-2); }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 10px 16px; text-align: left; font-size: 0.9rem; }
th { background: var(--ink); color: var(--paper); font-family: var(--mono); font-weight: 400; font-size: 0.78rem; letter-spacing: 1px; }
td { border-top: 1px solid var(--line); color: var(--ink-soft); }
td.yes { color: var(--ok); font-weight: 700; }
td.no { color: var(--bad); }
td:first-child { color: var(--ink); }

footer {
  border-top: 1px solid var(--line); padding: 18px 0;
  color: var(--ink-soft); font-size: 0.82rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
footer a { color: var(--ink-soft); }

.scanning { display: none; align-items: center; gap: 10px; margin-top: 14px; color: var(--ink-soft); font-family: var(--mono); font-size: 0.88rem; }
.scanning.on { display: flex; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); animation: pulse 0.9s infinite alternate; }
@keyframes pulse { from { opacity: 0.25; transform: scale(0.8); } to { opacity: 1; transform: scale(1.15); } }