/* PDFeather — shared styles (matrix template, teal accent) */
:root {
  --accent: #0F6E56;
  --accent-2: #5DCAA5;
  --bg: #FBFBF9;
  --ink: #1F2725;
  --muted: #5F6B67;
  --line: #DCE5E1;
  --card: #FFFFFF;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* header */
.site-header { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.site-header .wrap { display: flex; align-items: center; gap: 24px; min-height: 60px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.logo { font-weight: 700; font-size: 20px; color: var(--ink); letter-spacing: -0.02em; }
.logo:hover { text-decoration: none; }
.logo-dot { color: var(--accent); }
.main-nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.main-nav a { color: var(--muted); font-size: 14px; padding: 6px 10px; border-radius: 6px; }
.main-nav a:hover { background: #EEF6F2; color: var(--accent); text-decoration: none; }

/* hero */
.hero { text-align: center; padding: 48px 0 24px; }
.hero h1 { font-size: 34px; margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p { color: var(--muted); max-width: 640px; margin: 0 auto 18px; }
.badge-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.badge { background: #EEF6F2; color: var(--accent); border: 1px solid #CBE7DA; border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 500; }

/* tool cards on hub */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; padding: 24px 0 12px; }
.tool-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; display: flex; flex-direction: column; gap: 8px; transition: border-color .15s, box-shadow .15s; }
.tool-card:hover { border-color: var(--accent-2); box-shadow: 0 4px 18px rgba(15,110,86,.08); }
.tool-card h3 { margin: 0; font-size: 17px; }
.tool-card h3 a { color: var(--ink); }
.tool-card p { margin: 0; color: var(--muted); font-size: 14px; flex: 1; }
.tool-card .go { font-weight: 600; font-size: 14px; }

/* tool page shell */
.tool-shell { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 28px; margin: 24px 0; }
.tool-shell h1 { margin: 0 0 6px; font-size: 26px; letter-spacing: -0.02em; }
.tool-sub { color: var(--muted); margin: 0 0 20px; font-size: 15px; }
.dropzone {
  border: 2px dashed var(--accent-2); border-radius: 12px; padding: 44px 20px;
  text-align: center; cursor: pointer; background: #F6FBF9; transition: background .15s;
}
.dropzone:hover, .dropzone.drag { background: #EDF7F2; }
.dropzone .dz-icon { font-size: 30px; line-height: 1; margin-bottom: 10px; color: var(--accent); }
.dropzone p { margin: 0; }
.dz-hint { color: var(--muted); font-size: 13px; margin-top: 6px; }

/* options */
.opt-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin: 18px 0; }
.opt { display: flex; flex-direction: column; gap: 5px; }
.opt label { font-size: 13px; font-weight: 600; color: var(--muted); }
.opt select, .opt input {
  padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; background: #fff; color: var(--ink);
}
.opt-inline { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* file list */
.file-list { display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }
.file-row {
  display: flex; align-items: center; gap: 12px; border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 14px; background: #fff;
}
.file-row img.thumb { width: 44px; height: 44px; object-fit: cover; border-radius: 6px; border: 1px solid var(--line); }
.file-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.file-meta { color: var(--muted); font-size: 13px; white-space: nowrap; }
.mini-btn { border: 1px solid var(--line); background: #fff; border-radius: 6px; padding: 4px 9px; font-size: 13px; cursor: pointer; color: var(--muted); }
.mini-btn:hover { border-color: var(--accent-2); color: var(--accent); }

/* actions */
.btn {
  display: inline-block; background: var(--accent); color: #fff; border: none; border-radius: 9px;
  padding: 12px 22px; font-size: 15px; font-weight: 600; cursor: pointer; letter-spacing: .01em;
}
.btn:hover { background: #0C5B46; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent-2); }
.btn-ghost:hover { background: #EEF6F2; }

/* progress + results */
.progress { display: none; margin: 14px 0; }
.progress.show { display: block; }
.progress .track { height: 8px; background: #E7F1EC; border-radius: 99px; overflow: hidden; }
.progress .fill { height: 100%; background: var(--accent); width: 0%; transition: width .2s; border-radius: 99px; }
.progress .ptext { font-size: 13px; color: var(--muted); margin: 6px 0 0; }
.result { display: none; margin: 16px 0; border: 1px solid #CBE7DA; background: #F2FAF6; border-radius: 10px; padding: 16px 18px; }
.result.show { display: block; }
.result .rline { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; align-items: center; }
.result .ok { color: var(--accent); font-weight: 600; }
.warn {
  border-left: 3px solid #BA7517; background: #FDF6EA; color: #633806;
  padding: 10px 14px; border-radius: 6px; font-size: 14px; margin: 14px 0;
}

/* editable TOC table */
table.toc-table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
.toc-table th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); padding: 6px 8px; border-bottom: 1px solid var(--line); }
.toc-table td { padding: 6px 8px; border-bottom: 1px solid #EEF2F0; vertical-align: middle; }
.toc-table input[type="text"] { width: 100%; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px; }
.toc-table input[type="number"] { width: 72px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; }
.toc-table select { padding: 6px; border: 1px solid var(--line); border-radius: 6px; }

/* article content */
.crumb { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--accent); }
.article { padding: 8px 0 32px; }
.article h2 { font-size: 22px; margin: 28px 0 10px; letter-spacing: -0.01em; }
.article h3 { font-size: 17px; margin: 20px 0 8px; }
.article p { margin: 0 0 14px; }
.article ul, .article ol { padding-left: 24px; margin: 0 0 14px; }
.article li { margin: 4px 0; }
.article table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.article th { text-align: left; background: #EEF6F2; padding: 8px 10px; border: 1px solid var(--line); }
.article td { padding: 8px 10px; border: 1px solid var(--line); }
.callout { background: #EEF6F2; border: 1px solid #CBE7DA; border-radius: 10px; padding: 14px 18px; margin: 16px 0; }
.callout p { margin: 0; }
.faq details { border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; margin: 8px 0; background: #fff; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.faq details p { margin: 8px 0 2px; color: var(--muted); font-size: 14px; }
.tool-links { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0; }
.tool-links a { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 8px 14px; font-size: 14px; }
.tool-links a:hover { border-color: var(--accent-2); text-decoration: none; }

/* guides hub */
.guide-group { margin: 20px 0; }
.guide-group h2 { font-size: 18px; margin: 24px 0 10px; }
.guide-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr; gap: 8px; }
.guide-list li { border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.guide-list a { display: block; padding: 12px 16px; }
.guide-list a:hover { text-decoration: none; border-color: var(--accent-2); }
.guide-list .g-desc { color: var(--muted); font-size: 13px; display: block; }

/* footer */
.site-footer { border-top: 1px solid var(--line); background: var(--card); margin-top: 40px; padding: 28px 0 40px; }
.site-footer p { margin: 6px 0; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; margin: 10px 0; }
.footer-links a { color: var(--muted); font-size: 13px; }
.fine { color: var(--muted); font-size: 12px; }

@media (max-width: 720px) {
  .hero h1 { font-size: 26px; }
  .tool-shell { padding: 18px; }
  .main-nav { margin-left: 0; }
}