/* ===== Long-form content pages (about / methodology / contacts) ===== */

.ct-top { padding: 22px 0 0; }
.ct-head { padding: 14px 0 30px; border-bottom: 1px solid var(--border); margin-bottom: 36px; }
.ct-head h1 { font-size: clamp(30px, 4vw, 44px); letter-spacing: -.02em; line-height: 1.08; margin: 0 0 14px; }
.ct-head .lede { font-size: clamp(16px, 1.6vw, 19px); line-height: 1.55; color: var(--text-2); max-width: 680px; }
.ct-head .upd { margin-top: 16px; font-family: var(--font-mono); font-size: 12px; color: var(--text-mute); display: inline-flex; align-items: center; gap: 8px; }
.ct-head .upd::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

/* layout: content + sticky TOC */
.ct-layout { display: grid; grid-template-columns: minmax(0, 1fr) 232px; gap: 56px; align-items: start; }
.ct-main { min-width: 0; max-width: 720px; }

/* TOC */
.ct-toc { position: sticky; top: 84px; font-size: 13.5px; }
.ct-toc .toc-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-mute); margin-bottom: 12px; }
.ct-toc ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; border-left: 1px solid var(--border); }
.ct-toc a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; color: var(--text-2); border-left: 2px solid transparent; transition: color .15s, border-color .15s; }
.ct-toc a:hover { color: var(--text); }
.ct-toc a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 500; }

/* typography */
.ct-prose { color: var(--text); }
.ct-prose > * + * { margin-top: 18px; }
.ct-prose h2 { font-size: 25px; letter-spacing: -.015em; line-height: 1.2; margin: 46px 0 4px; scroll-margin-top: 84px; }
.ct-prose h2:first-child { margin-top: 0; }
.ct-prose h3 { font-size: 18px; line-height: 1.3; margin: 30px 0 2px; scroll-margin-top: 84px; }
.ct-prose p { font-size: 16.5px; line-height: 1.7; color: var(--text-2); }
.ct-prose strong { color: var(--text); font-weight: 600; }
.ct-prose a:not(.btn) { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.ct-prose ul, .ct-prose ol { padding-left: 22px; display: flex; flex-direction: column; gap: 9px; }
.ct-prose li { font-size: 16.5px; line-height: 1.6; color: var(--text-2); }
.ct-prose li::marker { color: var(--text-mute); }
.ct-prose li strong { color: var(--text); }

/* callout */
.callout { display: flex; gap: 13px; padding: 16px 18px; border-radius: var(--r-lg); background: var(--bg-elev-2); border: 1px solid var(--border); }
.callout .cico { flex: none; width: 22px; height: 22px; color: var(--accent); margin-top: 1px; }
.callout p { margin: 0; font-size: 15px; line-height: 1.6; }
.callout.warn { background: color-mix(in srgb, var(--amber) 10%, var(--bg)); border-color: color-mix(in srgb, var(--amber) 32%, var(--border)); }
.callout.warn .cico { color: var(--amber); }

/* content table */
.ct-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-lg); }
table.ct-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
table.ct-table th, table.ct-table td { text-align: left; padding: 13px 16px; vertical-align: top; line-height: 1.45; }
table.ct-table thead th { background: var(--bg-elev-2); font-weight: 600; color: var(--text); font-size: 12.5px; letter-spacing: .03em; text-transform: uppercase; border-bottom: 1px solid var(--border); }
table.ct-table tbody tr + tr td { border-top: 1px solid var(--border); }
table.ct-table td { color: var(--text-2); }
table.ct-table td strong { color: var(--text); }
table.ct-table .mono { font-family: var(--font-mono); font-size: 13px; }

/* badge legend */
.badge-legend { display: flex; flex-direction: column; gap: 10px; }
.badge-row { display: flex; gap: 13px; align-items: flex-start; padding: 13px 16px; border: 1px solid var(--border); border-radius: var(--r-md); }
.b-pill { flex: none; font-family: var(--font-mono); font-size: 11px; font-weight: 600; padding: 4px 9px; border-radius: 999px; letter-spacing: .03em; }
.b-pill.ok { background: color-mix(in srgb, var(--green) 15%, var(--bg)); color: var(--green); }
.b-pill.prov { background: color-mix(in srgb, var(--amber) 16%, var(--bg)); color: var(--amber); }
.badge-row p { margin: 0; font-size: 14.5px; line-height: 1.55; }

/* CTA block */
.ct-cta { margin-top: 40px; padding: 30px 32px; border-radius: var(--r-xl); background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--bg-elev)) 0%, var(--bg-elev) 60%); border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border)); }
.ct-cta h3 { margin: 0 0 8px; font-size: 21px; letter-spacing: -.01em; }
.ct-cta p { margin: 0 0 18px; color: var(--text-2); font-size: 15.5px; line-height: 1.6; max-width: 520px; }
.ct-cta .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* principles grid */
.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-top: 6px; }
.principle { padding: 20px; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--bg-elev); }
.principle .pnum { font-family: var(--font-mono); font-size: 12px; color: var(--accent); font-weight: 600; }
.principle h3 { margin: 10px 0 6px; font-size: 16.5px; }
.principle p { margin: 0; font-size: 14px; line-height: 1.55; color: var(--text-2); }

/* contacts */
.contact-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: start; }
.channel-list { display: flex; flex-direction: column; gap: 12px; }
.channel { display: flex; gap: 14px; align-items: center; padding: 15px 17px; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--bg-elev); transition: border-color .15s; }
.channel:hover { border-color: var(--border-strong); }
.channel .chico { flex: none; width: 38px; height: 38px; border-radius: var(--r-md); display: grid; place-items: center; background: var(--bg-elev-2); color: var(--accent); }
.channel .ctxt { min-width: 0; }
.channel .ctxt b { display: block; font-size: 14.5px; }
.channel .ctxt span { font-size: 13px; color: var(--text-mute); }
.channel .ctxt a { color: var(--accent); font-size: 13px; }

.cform { display: flex; flex-direction: column; gap: 14px; padding: 24px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--bg-elev); }
.cform .frow { display: flex; flex-direction: column; gap: 6px; }
.cform label { font-size: 13px; font-weight: 500; color: var(--text); }
.cform input, .cform textarea, .cform select { font-family: inherit; font-size: 14.5px; padding: 11px 13px; border: 1px solid var(--border-strong); border-radius: var(--r-md); background: var(--bg); color: var(--text); width: 100%; transition: border-color .15s, box-shadow .15s; }
.cform input:focus, .cform textarea:focus, .cform select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent); }
.cform textarea { resize: vertical; min-height: 110px; line-height: 1.5; }
.cform .err { font-size: 12px; color: var(--red); display: none; }
.cform .frow.invalid .err { display: block; }
.cform .frow.invalid input, .cform .frow.invalid textarea { border-color: var(--red); }
.cform .form-note { font-size: 12px; color: var(--text-mute); line-height: 1.5; }
.cform .ok-msg { display: none; gap: 11px; align-items: center; padding: 14px 16px; border-radius: var(--r-md); background: color-mix(in srgb, var(--green) 12%, var(--bg)); border: 1px solid color-mix(in srgb, var(--green) 30%, var(--border)); color: var(--text); font-size: 14px; }
.cform.sent .ok-msg { display: flex; }
.cform.sent .frow, .cform.sent .form-note, .cform.sent button[type=submit] { display: none; }

@media (max-width: 920px) {
  .ct-layout { grid-template-columns: 1fr; gap: 0; }
  .ct-toc { position: static; top: auto; margin-bottom: 28px; order: -1; }
  .ct-toc-details summary { cursor: pointer; font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--text-2); padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--r-md); list-style: none; display: flex; justify-content: space-between; align-items: center; }
  .ct-toc-details summary::-webkit-details-marker { display: none; }
  .ct-toc-details summary::after { content: "▾"; color: var(--text-mute); }
  .ct-toc-details[open] summary::after { content: "▴"; }
  .ct-toc ul { margin-top: 10px; }
  .contact-grid { grid-template-columns: 1fr; gap: 28px; }
}