/* =====================================================================
   ByeCore · About — page-specific sections
   Built on legal.css tokens (Anthropic warm-editorial · System/Light/Dark).
   ===================================================================== */

/* about is embedded in the New API frame, which supplies its own nav —
   there is no in-page top bar here, so shrink the sticky offset token */
:root { --topbar-h: 8px; }

/* extra breathing room at the top (the frame's nav sits above this page) */
.shell { padding-top: clamp(52px, 7vw, 104px); }

/* shared flat slab surface (mirrors the legal panels) */
.slab {
  position: relative; overflow: hidden;
  margin-top: clamp(22px, 3vw, 38px);
  padding: clamp(28px, 3.6vw, 52px);
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  background: var(--surface); box-shadow: var(--shadow-card);
  scroll-margin-top: calc(var(--topbar-h) + 22px);
}

/* section heading */
.sec-head { margin-bottom: clamp(22px, 3vw, 30px); }
.kick {
  font-family: var(--font-mono); font-weight: 600;
  font-size: 11px; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--accent-deep); margin: 0 0 10px;
}
.sec-head h2 {
  font-family: var(--font-display); font-weight: 480;
  font-size: clamp(26px, 4vw, 40px); line-height: 1.16;
  letter-spacing: -0.02em; margin: 0; color: var(--text);
}
.sec-head .sec-sub { margin: 14px 0 0; max-width: 56ch; color: var(--muted); font-size: 16px; }

/* ===================== hero stat band ===================== */
.statband {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin-top: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; background: var(--line);
}
.statband .stat { padding: 20px 22px; background: var(--surface); }
.statband .stat b {
  display: block; font-family: var(--font-mono); font-weight: 600;
  font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--faint); margin-bottom: 8px;
}
.statband .stat span {
  font-family: var(--font-display); font-size: clamp(15px, 1.8vw, 19px);
  color: var(--text); letter-spacing: -0.01em;
}

/* ===================== manifesto ===================== */
.manifesto { border-left: 3px solid var(--accent); }
.manifesto-quote {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(26px, 4.2vw, 46px); line-height: 1.28;
  letter-spacing: -0.02em; color: var(--text); margin: 0;
}
.manifesto-quote em { font-style: italic; color: var(--accent); }
.manifesto-body { margin: 26px 0 0; max-width: 60ch; color: var(--muted); font-size: 16.5px; line-height: 1.78; }
.manifesto-body + .manifesto-body { margin-top: 14px; }

/* ===================== what-we-do grid ===================== */
.do-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }
.do-card {
  position: relative; padding: 26px 24px 24px;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface-2);
  transition: border-color 0.22s ease, transform 0.22s ease;
}
.do-card:hover { border-color: var(--accent-line); transform: translateY(-3px); }
.do-card .dx {
  font-family: var(--font-mono); font-weight: 600; font-size: 12px;
  letter-spacing: 0.12em; color: var(--accent-deep);
}
.do-card h3 {
  font-family: var(--font-display); font-weight: 520; font-size: 20px;
  letter-spacing: -0.01em; margin: 12px 0 8px; color: var(--text);
}
.do-card p { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.7; }
.do-card code { font-size: 0.86em; }

/* unified endpoint line */
.endpoint {
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px;
  margin-top: 22px; padding: 14px 14px 14px 18px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-md);
  background: var(--code-bg);
}
.endpoint .method {
  padding: 4px 10px; border-radius: 999px;
  background: var(--accent-soft); border: 1px solid var(--accent-line);
  color: var(--accent-deep); font-family: var(--font-mono);
  font-size: 11px; font-weight: 600; letter-spacing: 0.12em;
}
.endpoint code { flex: 1; min-width: 200px; color: var(--code-text); font-size: 14.5px; }
.endpoint .copy {
  flex-shrink: 0; padding: 7px 15px; border-radius: 999px;
  border: 1px solid var(--accent-line); background: var(--accent-soft);
  color: var(--accent-deep); font: inherit; font-size: 13px; font-weight: 600; cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.endpoint .copy:hover { transform: translateY(-1px); background: var(--accent); color: #fff; }
.endpoint .copy.done { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===================== provider matrix ===================== */
.prov-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; margin-top: 6px;
}
.prov {
  display: flex; flex-direction: column; gap: 14px;
  padding: 22px 20px 18px;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface-2);
  transition: border-color 0.22s ease, transform 0.22s ease;
}
.prov:hover { border-color: var(--accent-line); transform: translateY(-3px); }
.prov-mark {
  display: grid; place-items: center; width: 42px; height: 42px;
  border-radius: 12px; border: 1px solid var(--line-strong);
  background: var(--surface); color: var(--accent);
  font-family: var(--font-display); font-style: italic; font-weight: 600; font-size: 22px; line-height: 1;
}
.prov h4 { margin: 0; font-family: var(--font-display); font-weight: 520; font-size: 18px; letter-spacing: -0.01em; color: var(--text); }
.prov .proto {
  margin-top: auto; font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint);
}

/* dual-protocol explainer */
.proto-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; margin-top: 22px; }
.proto-col {
  padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface-2);
}
.proto-col .pc-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-deep);
  border: 1px solid var(--accent-line); background: var(--accent-soft);
  border-radius: 999px; padding: 3px 11px; margin-bottom: 12px;
}
.proto-col h4 { margin: 0 0 6px; font-family: var(--font-display); font-weight: 520; font-size: 18px; color: var(--text); }
.proto-col p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }

/* ===================== timeline ===================== */
.timeline { list-style: none; margin: 6px 0 0; padding: 0; position: relative; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px;
  width: 1px; background: var(--line-strong);
}
.tl-item { position: relative; padding: 0 0 26px 38px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: 2px; top: 6px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--accent);
}
.tl-item .ty {
  font-family: var(--font-mono); font-weight: 600; font-size: 12px;
  letter-spacing: 0.08em; color: var(--accent-deep);
}
.tl-item h4 { margin: 6px 0 6px; font-family: var(--font-display); font-weight: 520; font-size: 19px; letter-spacing: -0.01em; color: var(--text); }
.tl-item p { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.7; max-width: 52ch; }

/* ===================== contact ===================== */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.contact-card {
  padding: 24px 22px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface-2);
  transition: border-color 0.22s ease, transform 0.22s ease;
}
.contact-card:hover { border-color: var(--accent-line); transform: translateY(-3px); }
.contact-card .cc-label {
  font-family: var(--font-mono); font-weight: 600; font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint);
}
.contact-card .cc-value {
  display: block; margin-top: 10px; font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px); color: var(--text); letter-spacing: -0.01em; word-break: break-word;
}
.contact-card .cc-value a { color: var(--accent-deep); }
.contact-card .cc-value a:hover { color: var(--accent); }
.contact-card .cc-note { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.6; }

/* client ecosystem tag row */
.tagrow { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag {
  padding: 6px 13px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface-2); color: var(--muted);
  font-size: 13px; font-weight: 550; letter-spacing: 0.01em;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.tag:hover { color: var(--accent-deep); border-color: var(--accent-line); }

/* values strip reuses .pledge-points from legal.css */

/* ===================== responsive ===================== */
@media (max-width: 860px) {
  .statband { grid-template-columns: repeat(2, 1fr); }
  .do-grid, .prov-grid, .proto-cols, .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .statband { grid-template-columns: 1fr; }
  .slab { padding: clamp(24px, 5vw, 32px) clamp(18px, 5vw, 24px); }
}