:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --ink: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --bg: #f9fafb;
  --ok: #059669;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.55;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

header.site {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 22px; font-weight: 700; color: var(--ink); }
.logo span { color: var(--blue); }
nav.site a { margin-left: 20px; color: var(--muted); font-weight: 500; font-size: 15px; }
nav.site a:hover { color: var(--ink); }

main { min-height: 60vh; padding: 40px 0 60px; }

h1 { font-size: 30px; margin: 0 0 10px; }
h2 { font-size: 22px; margin: 32px 0 10px; }
p.lead { color: var(--muted); font-size: 17px; margin: 0 0 30px; }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.tool-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  transition: border-color .15s, box-shadow .15s;
  display: block;
}
.tool-card:hover { border-color: var(--blue); box-shadow: 0 2px 10px rgba(37,99,235,.08); text-decoration: none; }
.tool-card .icon { font-size: 26px; margin-bottom: 10px; display: block; }
.tool-card h3 { margin: 0 0 6px; font-size: 17px; color: var(--ink); }
.tool-card p { margin: 0; font-size: 14px; color: var(--muted); }

.tool-box {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  margin: 24px 0;
  background: var(--bg);
}
.tool-box input[type="file"] {
  display: block;
  margin: 0 auto 16px;
  font-size: 14px;
}
button.primary {
  background: var(--blue);
  color: #fff;
  border: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
button.primary:hover { background: var(--blue-dark); }
button.primary:disabled { background: #9ca3af; cursor: not-allowed; }

.field { margin: 14px 0; text-align: left; max-width: 320px; margin-left: auto; margin-right: auto; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.field input[type="text"], .field select {
  width: 100%; padding: 9px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px;
}
.field input[type="range"] { width: 100%; }

.status { margin-top: 16px; font-size: 14px; min-height: 20px; }
.status.ok { color: var(--ok); font-weight: 600; }
.status.err { color: #dc2626; font-weight: 600; }

.download-link {
  display: inline-block;
  margin-top: 12px;
  background: var(--ok);
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
}
.download-link:hover { text-decoration: none; opacity: .92; }

.how-it-works { background: var(--bg); border-radius: 10px; padding: 20px 24px; margin-top: 30px; }
.how-it-works li { margin-bottom: 6px; font-size: 14px; color: var(--muted); }

footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}
footer.site p { margin: 4px 0; }
footer.site .credit { font-size: 12px; color: #9ca3af; }
footer.site nav a { margin: 0 10px; color: var(--muted); }

.legal h2 { margin-top: 26px; }
.legal p, .legal li { color: var(--ink); font-size: 15px; }

/* ============================================================
   SEO / content additions — appended to the original stylesheet
   ============================================================ */

/* Breadcrumbs */
.breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 14px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb .sep { color: #d1d5db; margin: 0 2px; }

/* Long-form prose blocks */
.prose { max-width: 720px; }
.prose h2 { font-size: 21px; margin: 34px 0 10px; }
.prose h3 { font-size: 17px; margin: 24px 0 8px; }
.prose p, .prose li { font-size: 15.5px; color: #374151; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 7px; }
.prose code {
  background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 5px; font-size: 13px;
}

/* Callout */
.callout {
  border-left: 3px solid var(--blue);
  background: #eff6ff;
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
  margin: 22px 0;
  font-size: 14.5px;
  color: #1e3a5f;
}
.callout strong { color: var(--blue-dark); }

/* FAQ accordion */
.faq { margin-top: 40px; }
.faq details {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 10px;
  background: #fff;
}
.faq summary {
  cursor: pointer;
  padding: 14px 18px;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  position: relative;
  padding-right: 42px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute; right: 18px; top: 12px;
  font-size: 20px; font-weight: 400; color: var(--muted);
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--border); }
.faq details > div {
  padding: 14px 18px;
  font-size: 14.5px;
  color: #374151;
}
.faq details > div p:first-child { margin-top: 0; }
.faq details > div p:last-child { margin-bottom: 0; }

/* Related tools */
.related { margin-top: 46px; }
.related h2 { font-size: 19px; }

/* Feature strip on the homepage */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin: 30px 0 10px;
}
.feature { font-size: 14.5px; color: var(--muted); }
.feature strong { display: block; color: var(--ink); font-size: 15px; margin-bottom: 3px; }

/* Section label above tool groups */
.group-label {
  font-size: 12px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--muted); margin: 38px 0 4px;
}

/* Guides index */
.guide-list { list-style: none; padding: 0; margin: 24px 0 0; }
.guide-list li {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.guide-list li:last-child { border-bottom: none; }
.guide-list h2 { font-size: 18px; margin: 0 0 5px; }
.guide-list h2 a { color: var(--ink); }
.guide-list h2 a:hover { color: var(--blue); }
.guide-list p { margin: 0; font-size: 14.5px; color: var(--muted); }

/* Article meta */
.meta { font-size: 13px; color: var(--muted); margin: 0 0 26px; }

/* Inline CTA to a tool from within an article */
.tool-cta {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  margin: 28px 0;
  background: var(--bg);
}
.tool-cta strong { display: block; font-size: 16px; margin-bottom: 4px; color: var(--ink); }
.tool-cta p { margin: 0 0 12px; font-size: 14px; color: var(--muted); }
.tool-cta a.btn {
  display: inline-block; background: var(--blue); color: #fff;
  padding: 9px 18px; border-radius: 7px; font-weight: 600; font-size: 14px;
}
.tool-cta a.btn:hover { background: var(--blue-dark); text-decoration: none; }

/* Comparison table */
.cmp { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 14.5px; }
.cmp th, .cmp td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; }
.cmp th { background: var(--bg); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.table-scroll { overflow-x: auto; }

/* Privacy badge under the H1 of tool pages */
.privacy-note {
  display: inline-block;
  font-size: 13px;
  color: var(--ok);
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 20px;
  font-weight: 600;
}

@media (max-width: 600px) {
  h1 { font-size: 25px; }
  nav.site a { margin-left: 13px; font-size: 14px; }
  .logo { font-size: 20px; }
  .tool-box { padding: 22px 16px; }
}