:root {
  --ink: #14151a;
  --ink-soft: #3d4048;
  --muted: #6b7076;
  --line: #e5e7eb;
  --bg: #ffffff;
  --soft: #f7f8fa;
  --accent: #0f766e;
  --accent-dark: #0b5a54;
  --accent-soft: #e6f4f2;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; gap: 24px; height: 62px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 16px; color: var(--ink); letter-spacing: -.01em; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 7px; background: var(--accent);
  color: #fff; font-size: 14px; font-weight: 700; display: grid; place-items: center;
}
.nav { display: flex; gap: 20px; margin-left: auto; font-size: 14px; }
.nav a { color: var(--ink-soft); }
.nav a.active { color: var(--ink); font-weight: 500; }
.nav a:hover { color: var(--accent); text-decoration: none; }
@media (max-width: 760px) { .nav { display: none; } }

.hero { padding: 48px 0 8px; }
.hero h1 { font-size: 36px; line-height: 1.18; letter-spacing: -.02em; margin: 0 0 14px; font-weight: 650; }
.hero p.lead { font-size: 17px; color: var(--muted); margin: 0 0 24px; max-width: 620px; }
.eyebrow { display: inline-block; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px; font-weight: 600; }

.tool {
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  padding: 18px; box-shadow: 0 1px 2px rgba(16,24,40,.04);
}
.tool-row { display: flex; gap: 16px; }
@media (max-width: 860px) { .tool-row { flex-direction: column; } }
.pane { flex: 1; min-width: 0; }
.pane-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; font-size: 13px; color: var(--muted); }
.pane textarea {
  width: 100%; min-height: 240px; resize: vertical; padding: 14px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--soft);
  font-family: inherit; font-size: 15px; line-height: 1.6; color: var(--ink); outline: none;
}
.pane textarea:focus { border-color: var(--accent); background: #fff; }
.output {
  min-height: 240px; padding: 14px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--soft); font-size: 15px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere;
}
.output.empty { color: #9aa0a6; }
.controls { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.btn {
  appearance: none; border: 1px solid var(--accent); background: var(--accent); color: #fff;
  padding: 11px 20px; border-radius: 9px; font-size: 15px; font-weight: 500; cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: var(--accent-dark); }
.btn:disabled { opacity: .6; cursor: default; }
.btn.ghost { background: #fff; color: var(--ink-soft); border-color: var(--line); }
.btn.ghost:hover { background: var(--soft); }
.chip {
  border: 1px solid var(--line); background: #fff; color: var(--ink-soft);
  padding: 7px 12px; border-radius: 999px; font-size: 13px; cursor: pointer; font-family: inherit;
}
.chip.on { border-color: var(--accent); color: var(--accent-dark); background: var(--accent-soft); }
.note { font-size: 12.5px; color: var(--muted); margin-top: 10px; }

.trust { display: flex; flex-wrap: wrap; gap: 10px 26px; padding: 22px 0 8px; font-size: 13px; color: var(--muted); }
.trust span::before { content: "✓"; color: var(--accent); margin-right: 6px; font-weight: 700; }

section { padding: 44px 0; }
section.tight { padding: 26px 0; }
h2 { font-size: 24px; letter-spacing: -.01em; margin: 0 0 12px; font-weight: 600; }
h3 { font-size: 17px; margin: 0 0 8px; font-weight: 600; }
p { margin: 0 0 14px; }
.muted { color: var(--muted); }

.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
@media (max-width: 860px) { .grid-3 { grid-template-columns: 1fr; } }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; }
.card p:last-child { margin-bottom: 0; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--soft); font-weight: 600; font-size: 13px; color: var(--ink-soft); }
tr:last-child td { border-bottom: none; }

.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq details:last-child { border-bottom: none; }
.faq summary { cursor: pointer; font-weight: 500; font-size: 15.5px; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq p { margin: 10px 0 0; color: var(--ink-soft); font-size: 15px; }

.tool-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.tool-card + .tool-card { margin-top: 12px; }
.tool-card .top { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.tool-card .name { font-size: 16.5px; font-weight: 600; }
.badge { font-size: 11.5px; padding: 3px 8px; border-radius: 999px; background: var(--soft); color: var(--muted); border: 1px solid var(--line); }
.badge.best { background: var(--accent-soft); color: var(--accent-dark); border-color: #bfe3dd; }

.cta-band { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 28px; padding-bottom: 28px; flex-wrap: wrap; }

.prose { max-width: 760px; }
.prose h2 { margin-top: 34px; }
.prose h3 { margin-top: 24px; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 16px; }
.prose li { margin-bottom: 7px; }
.prose blockquote { margin: 0 0 16px; padding: 10px 16px; border-left: 3px solid var(--accent); background: var(--soft); color: var(--ink-soft); }
.toc { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; background: var(--soft); margin-bottom: 28px; font-size: 14.5px; }
.toc strong { display: block; margin-bottom: 8px; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.toc ol { margin: 0; padding-left: 18px; }
.toc li { margin-bottom: 4px; }

.site-footer { border-top: 1px solid var(--line); padding: 36px 0 44px; font-size: 13.5px; color: var(--muted); }
.footer-cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; }
@media (max-width: 860px) { .footer-cols { grid-template-columns: 1fr 1fr; } }
.site-footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); margin: 0 0 10px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 7px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }
.copyright { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12.5px; color: #9aa0a6; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }