:root {
  --ink: #1f2a2e;
  --muted: #475467;
  --line: #d7dfe3;
  --bg: #f6f8f7;
  --brand: #0f3d3e;
  --ok: #067647;
  --bad: #b42318;
  --warn: #b54708;
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  overflow-wrap: anywhere;
}

a { color: #0b5f63; text-decoration: underline; text-underline-offset: 2px; }

.chrome { background: #fff; border-bottom: 1px solid var(--line); }
.chrome .in { max-width: 960px; margin: 0 auto; padding: 10px 16px; display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.brand { font-weight: 700; color: var(--brand); text-decoration: none; }
nav.chrome a { font-size: 14px; color: var(--muted); text-decoration: none; padding: 4px 2px; }
nav.chrome a[aria-current="page"] { color: var(--brand); font-weight: 700; border-bottom: 2px solid var(--brand); }

main { max-width: 960px; margin: 0 auto; padding: 20px 16px 48px; }
h1 { font-size: 24px; line-height: 1.35; margin: 8px 0 8px; }
h2 { font-size: 19px; margin: 28px 0 10px; }
h3 { font-size: 16px; margin: 0 0 6px; }
p { margin: 8px 0; }
.updated, .lead { color: var(--muted); }
.lead { font-size: 16px; }

.panel { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
.notice { background: #eff6f5; border: 1px solid #cfe3e1; border-radius: 10px; padding: 10px 12px; font-size: 14px; }
.fixed-note { position: static; }

.drop { border: 2px dashed #b9c9cc; border-radius: 12px; padding: 18px 14px; text-align: center; background: #fbfdfc; }
.drop.over { border-color: var(--brand); background: #eef7f6; }
.btn, button { font: inherit; border-radius: 9px; border: 1px solid var(--brand); background: var(--brand); color: #fff; padding: 9px 14px; cursor: pointer; }
button.ghost, .btn.ghost { background: #fff; color: var(--brand); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 10px 0; }
input[type="file"] { display: block; margin: 10px auto 0; max-width: 100%; }
input, textarea, select { font: inherit; border: 1px solid #b9c9cc; border-radius: 8px; padding: 8px 10px; width: 100%; background: #fff; color: var(--ink); }
label { display: block; font-size: 14px; color: var(--muted); }
label.check { display: flex; gap: 8px; align-items: center; }
label.check input { width: auto; }
.grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 12px 0; }
.grid .wide { grid-column: 1 / -1; }
@media (min-width: 640px) { .grid { grid-template-columns: 1fr 1fr; } }

.count, .hint, .muted { color: var(--muted); font-size: 13px; }
.progress { min-height: 24px; font-size: 14px; color: var(--brand); font-weight: 600; }

.files, .cands, .presets, .recent, .links, .plain { list-style: none; padding: 0; margin: 10px 0; }
.files li, .cands li, .presets li, .recent li { border-bottom: 1px solid var(--line); padding: 8px 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; }
.cands label { display: flex; gap: 8px; align-items: center; color: var(--ink); font-size: 15px; }
.cands input { width: auto; }
.links li { padding: 4px 0; }
.plain li { padding: 4px 0; }

.badge { display: inline-block; font-size: 12px; border-radius: 999px; padding: 2px 9px; border: 1px solid var(--line); background: #fff; }
.badge.ok { color: var(--ok); border-color: #a6d5bd; background: #f0faf5; }
.badge.bad { color: var(--bad); border-color: #f0b6b0; background: #fdf3f2; }
.badge.neutral { color: var(--muted); }

#results { display: grid; gap: 12px; margin-top: 12px; }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 14px; background: #fff; }
.result.ok { border-left: 5px solid var(--ok); }
.result.bad { border-left: 5px solid var(--bad); }
.result h3 { font-size: 15px; }
.cards { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .cards { grid-template-columns: 1fr 1fr; } }

.table { width: 100%; table-layout: fixed; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
.table th, .table td { border: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }
.table code { word-break: break-all; }
caption { text-align: left; color: var(--muted); font-size: 13px; padding-bottom: 6px; }

.faq details { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin: 8px 0; background: #fff; }
.faq summary { cursor: pointer; font-weight: 600; }

.mail { white-space: pre-wrap; background: #f4f7f6; border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 14px; }

.disclaimer { max-width: 960px; margin: 0 auto 12px; padding: 0 16px; color: var(--muted); font-size: 13px; }
footer.chrome { border-top: 1px solid var(--line); border-bottom: 0; margin-top: 32px; background: #fff; }
footer .in { display: block; font-size: 13px; }
footer h2 { font-size: 13px; margin: 14px 0 4px; color: var(--muted); }
footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; }
footer .disc { color: var(--muted); }