/* components.css — Egregium component styles */

/* ---------------- NAV ---------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.scrolled { border-bottom-color: var(--hairline); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 24px; }

.brand { display: flex; align-items: baseline; gap: 9px; background: none; border: 0; cursor: pointer; padding: 0; }
.brand-mark {
  font-family: var(--font-display); font-weight: 700; font-size: 19px;
  width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--ink); color: var(--paper); align-self: center;
}
.brand-name { font-family: var(--font-display); font-weight: 600; letter-spacing: 0.16em; font-size: 15px; }
.brand-sub { color: var(--ink-3); font-size: 10px; align-self: center; padding-bottom: 1px; }

.nav-links { display: flex; gap: 4px; }
.nav-link {
  background: none; border: 0; cursor: pointer;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--ink-2); padding: 8px 13px; position: relative;
  transition: color 0.2s var(--ease);
}
.nav-link:hover { color: var(--ink); }
.nav-link.active { color: var(--ink); }
.nav-link.active::after {
  content: ''; position: absolute; left: 13px; right: 13px; bottom: 2px; height: 1px; background: var(--gold);
}
.nav-actions { display: flex; align-items: center; gap: 14px; }
.theme-toggle {
  background: none; border: 1px solid var(--hairline-2); cursor: pointer;
  color: var(--ink-2); padding: 9px 12px; font-size: 11px; letter-spacing: 0.12em;
  transition: all 0.2s var(--ease);
}
.theme-toggle:hover { border-color: var(--ink); color: var(--ink); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
}

/* ---------------- SEAL ---------------- */
.seal-spin { animation: sealspin 44s linear infinite; animation-play-state: var(--seal-play, running); }
@keyframes sealspin { to { transform: rotate(360deg); } }
.circ-text span { color: var(--ink-2); }
@media (prefers-reduced-motion: reduce) { .seal-spin { animation: none; } }

/* ---------------- TWO-DIRECTION DIAGRAM ---------------- */
.diagram { position: relative; }
.diagram-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: clamp(20px, 4vw, 56px);
}
.diag-side { display: flex; flex-direction: column; transition: opacity 0.35s var(--ease), transform 0.35s var(--ease); }
.diag-side.right { align-items: flex-end; text-align: right; }
.diag-side.dim { opacity: 0.4; }
.diag-side.on { transform: translateY(-3px); }
.diag-q { color: var(--gold); margin-bottom: 14px; font-size: 11px; }
.diag-arrow {
  font-size: 30px; color: var(--ink-3); line-height: 1; margin-bottom: 14px;
  transition: color 0.3s var(--ease), transform 0.4s var(--ease);
}
.diag-side.on .diag-arrow { color: var(--gold); }
.diag-side.left.on .diag-arrow { transform: translateX(-8px); }
.diag-side.right.on .diag-arrow { transform: translateX(8px); }
.diag-card { max-width: 340px; transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease); }
.diag-side.on .diag-card { border-color: var(--gold); box-shadow: 0 18px 50px -28px rgba(184,134,11,0.45); }

.diag-center { display: flex; flex-direction: column; align-items: center; position: relative; }
.baseline-node {
  position: relative; background: var(--paper); border: 1px solid var(--ink);
  padding: 26px 30px; text-align: center; min-width: 220px;
}
.baseline-bars { display: flex; align-items: flex-end; justify-content: center; gap: 2px; height: 40px; margin-top: 18px; }
.baseline-bars span { width: 3px; background: var(--gold); display: block; opacity: 0.85; }
.diag-spine { display: none; }

.diag-foot { text-align: center; margin-top: 40px; font-size: 11px; letter-spacing: 0.22em; }

@media (max-width: 880px) {
  .diagram-grid { grid-template-columns: 1fr; gap: 26px; }
  .diag-side.right { align-items: flex-start; text-align: left; }
  .diag-side.right .diag-arrow { transform: rotate(90deg); }
  .diag-side.left .diag-arrow { transform: rotate(90deg); }
  .diag-card { max-width: none; }
  .baseline-node { width: 100%; }
}

/* ---------------- VERIFICATION DEMO ---------------- */
.demo { border: 1px solid var(--hairline-2); background: var(--paper); position: relative; }
.demo-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px; border-bottom: 1px solid var(--hairline);
  background: var(--paper-2);
}
.demo-dotrow { display: flex; gap: 7px; align-items: center; }
.demo-body { display: grid; grid-template-columns: 1.15fr 1fr; min-height: 420px; }
@media (max-width: 820px) { .demo-body { grid-template-columns: 1fr; } }

.demo-input { padding: 30px; border-right: 1px solid var(--hairline); display: flex; flex-direction: column; }
.demo-output { padding: 30px; background: var(--paper-2); display: flex; flex-direction: column; }
@media (max-width: 820px) { .demo-input { border-right: 0; border-bottom: 1px solid var(--hairline); } }

.subject-card { border: 1px solid var(--hairline); padding: 18px; background: var(--paper); }
.subject-row { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px dashed var(--hairline); font-size: 14px; }
.subject-row:last-child { border-bottom: 0; }

.scan-log { font-family: var(--font-mono); font-size: 12.5px; line-height: 1.9; flex: 1; }
.scan-line { display: flex; gap: 10px; align-items: baseline; animation: linein 0.3s var(--ease) both; }
@keyframes linein { from { transform: translateY(5px); } to { transform: none; } }
.scan-line .st { color: var(--ink-3); }
.scan-line .ok { color: var(--pass); }
.scan-line .fl { color: var(--fail); }
.scan-line .pend { color: var(--gold); }

.gauge { display: flex; align-items: flex-end; gap: 3px; height: 56px; margin: 8px 0 4px; }
.gauge span { flex: 1; background: var(--hairline-2); transition: height 0.5s var(--ease), background 0.5s var(--ease); }

.result-cert {
  border: 1px solid var(--gold); background: var(--gold-wash);
  padding: 26px; text-align: center; position: relative;
  animation: certpop 0.5s var(--ease) both;
}
@keyframes certpop { from { transform: scale(0.97); } to { transform: none; } }

/* ---------------- FOOTER ---------------- */
.footer { border-top: 1px solid var(--hairline-2); padding: 70px 0 40px; margin-top: 40px; background: var(--paper-2); }
.footer-top { display: grid; grid-template-columns: 1.3fr 1.7fr; gap: 40px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.footer-h { margin-bottom: 16px; font-size: 11px; }
.footer-link { display: block; background: none; border: 0; cursor: pointer; text-align: left; padding: 7px 0; color: var(--ink-2); font-size: 14px; transition: color 0.2s; }
.footer-link:hover { color: var(--gold); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 11px; }
@media (max-width: 820px) { .footer-top { grid-template-columns: 1fr; gap: 36px; } .footer-cols { grid-template-columns: 1fr 1fr; } }

/* ---------------- generic feature grids ---------------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--hairline); }
.feature-grid > * { border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.feature-cell { padding: 34px; position: relative; }
@media (max-width: 820px) { .feature-grid { grid-template-columns: 1fr; } }

.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.stat { padding: 30px 0; border-right: 1px solid var(--hairline); }
.stat:last-child { border-right: 0; }
.stat .n { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem); font-weight: 600; letter-spacing: -0.03em; }
@media (max-width: 700px) { .stat-row { grid-template-columns: 1fr; } .stat { border-right: 0; border-bottom: 1px solid var(--hairline); } }

/* steps */
.steps { display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 120px 1fr; gap: 30px; padding: 34px 0; border-top: 1px solid var(--hairline); align-items: start; }
.step:last-child { border-bottom: 1px solid var(--hairline); }
.step-n { font-family: var(--font-mono); font-size: 13px; color: var(--gold); letter-spacing: 0.1em; }
@media (max-width: 700px) { .step { grid-template-columns: 1fr; gap: 12px; } }

/* hero */
.hero { position: relative; overflow: hidden; }
.hero-inner { padding: clamp(60px, 10vw, 130px) 0 clamp(50px, 7vw, 90px); }
.hero-grid { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 50px; align-items: center; }
@media (max-width: 920px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.kicker-strip { display: flex; gap: 0; border: 1px solid var(--hairline); margin-top: 38px; }
.kicker-strip > div { flex: 1; padding: 16px 18px; border-right: 1px solid var(--hairline); }
.kicker-strip > div:last-child { border-right: 0; }
@media (max-width: 620px) { .kicker-strip { flex-direction: column; } .kicker-strip > div { border-right: 0; border-bottom: 1px solid var(--hairline); } }

/* page header */
.page-head { padding: clamp(70px, 9vw, 120px) 0 clamp(30px, 4vw, 50px); border-bottom: 1px solid var(--hairline); }

/* pull quote */
.pull { border-left: 2px solid var(--gold); padding-left: 28px; }

.inline-link { color: var(--gold); border-bottom: 1px solid var(--gold); padding-bottom: 1px; cursor: pointer; }
.inline-link:hover { background: var(--gold-wash); }

/* segmented button (demo) */
.seg-btn {
  flex: 1; cursor: pointer; background: var(--paper); border: 1px solid var(--hairline-2);
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink-2);
  padding: 11px 10px; transition: all 0.2s var(--ease);
}
.seg-btn:hover { color: var(--ink); }
.seg-btn[data-on="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn:disabled:hover { background: var(--gold); color: #1B1606; }

/* check list */
.check-list { list-style: none; padding: 0; margin: 22px 0 0; }
.check-list li { position: relative; padding: 9px 0 9px 26px; border-top: 1px dashed var(--hairline); font-size: 14.5px; color: var(--ink-2); }
.check-list li::before { content: '✓'; position: absolute; left: 0; top: 9px; color: var(--gold); font-size: 13px; }

/* moat (dark band) */
.moat-grid { align-items: center; }
.moat-stats { display: grid; gap: 0; border: 1px solid var(--hairline-2); }
.moat-stat { padding: 22px 24px; border-bottom: 1px solid var(--hairline-2); }
.moat-stat:last-child { border-bottom: 0; }
@media (max-width: 820px) { .moat-grid { grid-template-columns: 1fr !important; gap: 32px !important; } }

/* incentive loop */
.loop-row { display: flex; align-items: stretch; gap: 0; margin-top: 48px; border: 1px solid var(--hairline); text-align: left; }
.loop-cell { flex: 1; padding: 22px 20px; border-right: 1px solid var(--hairline); font-size: 14px; line-height: 1.35; }
.loop-cell:last-child { border-right: 0; }
.loop-arrow { display: flex; align-items: center; padding: 0 4px; color: var(--gold); font-size: 18px; }
@media (max-width: 820px) {
  .loop-row { flex-direction: column; }
  .loop-cell { border-right: 0; border-bottom: 1px solid var(--hairline); }
  .loop-arrow { transform: rotate(90deg); padding: 8px 0; justify-content: center; }
}

/* certify line blocks */
.line-block { display: grid; grid-template-columns: 200px 1fr; gap: 50px; align-items: start; }
.line-aside { position: sticky; top: 90px; }
@media (max-width: 820px) {
  .line-block { grid-template-columns: 1fr; gap: 24px; }
  .line-aside { position: static; }
  .std-grid { grid-template-columns: 1fr !important; }
  .std-grid .feature-cell { border-right: 0 !important; border-bottom: 1px solid var(--hairline); }
}