:root {
  --bg: #fbfaf7;
  --paper: #ffffff;
  --ink: #1b1a17;
  --muted: #6b675f;
  --line: #e4e0d6;
  --accent: #2f5d50;
  --accent-ink: #ffffff;
  --good: #2f5d50;
  --good-bg: #eaf2ee;
  --warn: #8a5a00;
  --warn-bg: #fbf1dc;
  --rough: #8c2f1c;
  --rough-bg: #f8e9e4;
  --radius: 12px;
  --font: ui-sans-serif, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --paper: #fdfcf9;
    --ink: #ecebe6;
    --muted: #a19d93;
    --line: #34332f;
    --accent: #7fbfa9;
    --accent-ink: #10201b;
    --good: #9fd3c0;
    --good-bg: #1d2a25;
    --warn: #e9c27a;
    --warn-bg: #2c2618;
    --rough: #f0a08c;
    --rough-bg: #2f1f1a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); }
.muted { color: var(--muted); }

.top {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1100px; width: 100%; margin: 0 auto; padding: 18px 20px;
}
.brand { font: 600 22px/1 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
.top nav a { margin-left: 18px; color: var(--muted); text-decoration: none; font-size: 15px; }
.top nav a:hover { color: var(--ink); }

main { flex: 1; width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 20px 40px; }
.hero { text-align: center; padding: 48px 0 28px; }
.hero h1 { font: 600 clamp(32px, 6vw, 52px)/1.08 var(--serif); margin: 0 0 14px; letter-spacing: -0.02em; }
.lede { max-width: 560px; margin: 0 auto; color: var(--muted); font-size: 18px; }
body.has-file .hero { padding: 20px 0 12px; }
body.has-file .hero h1 { font-size: clamp(24px, 4vw, 32px); }
body.has-file .lede { display: none; }

.drop {
  max-width: 720px; margin: 0 auto; border: 2px dashed var(--line); border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg) 60%, var(--paper) 40%);
  padding: 44px 20px; text-align: center; cursor: pointer; transition: border-color .15s, background .15s;
}
.drop:hover, .drop:focus-visible, body.dragging .drop { border-color: var(--accent); outline: none; }
body.dragging .drop { background: var(--good-bg); }
body.has-file .drop { padding: 16px 20px; }
body.has-file .drop-icon, body.has-file .drop-sub { display: none; }
.drop-icon { width: 40px; height: 40px; color: var(--accent); }
.drop-main { margin: 10px 0 4px; font-size: 18px; }
.drop-main span { color: var(--muted); }
.drop-sub { margin: 0; color: var(--muted); font-size: 14px; }
body.has-file .drop-main { margin: 0; font-size: 16px; }

.examples { text-align: center; color: var(--muted); font-size: 15px; margin: 14px 0 0; }
body.has-file .examples { display: none; }

.notice {
  max-width: 720px; margin: 18px auto 0; padding: 12px 16px; border-radius: 10px; font-size: 15px;
}
.notice.good { background: var(--good-bg); color: var(--good); }
.notice.warn { background: var(--warn-bg); color: var(--warn); }
.notice.rough { background: var(--rough-bg); color: var(--rough); }
.notice .muted { color: inherit; opacity: .8; }

.status { max-width: 720px; margin: 18px auto 0; text-align: center; color: var(--muted); }
.status.busy::before {
  content: ""; display: inline-block; width: 12px; height: 12px; margin-right: 8px; vertical-align: -1px;
  border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.bar {
  position: sticky; top: 0; z-index: 5; margin: 22px 0 16px; padding: 10px 12px;
  background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
}
.bar-title { flex: 1 1 200px; min-width: 0; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; }
.progress div { height: 100%; width: 0; background: var(--accent); }
.btn {
  font: 500 15px/1 var(--font); padding: 10px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--paper); color: #1b1a17; min-height: 40px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); min-width: 80px; }
.btn.ghost { background: transparent; color: var(--ink); }

.pages { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.page {
  position: relative; width: 100%; max-width: 900px; background: var(--paper); border-radius: 4px;
  box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 6px 24px rgba(0,0,0,.06);
}
.page svg { display: block; width: 100%; height: auto; }
.cursor { position: absolute; background: rgba(47, 93, 80, .14); border-radius: 3px; pointer-events: none; transition: left .08s, top .08s; }

.prose { max-width: 680px; margin: 0 auto; padding: 8px 0 40px; }
.prose h1 { font: 600 36px/1.15 var(--serif); margin: 24px 0 18px; }
.prose h2 { font: 600 22px/1.25 var(--serif); margin: 32px 0 10px; }
.prose table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 12px 0; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 8px 6px; text-align: left; }
.prose td.num, .prose th.num { text-align: right; font-variant-numeric: tabular-nums; }

.foot { border-top: 1px solid var(--line); text-align: center; padding: 22px 20px 30px; font-size: 15px; }
.foot p { margin: 4px 0; }

@media (max-width: 560px) {
  .top nav a { margin-left: 12px; font-size: 14px; }
  .hero { padding: 28px 0 18px; }
  .lede { font-size: 16px; }
  .drop { padding: 30px 16px; }
  .btn { padding: 9px 11px; font-size: 14px; }
}