/* Landing page layout */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: border-color var(--fast), background var(--fast);
}
.site-nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-logo {
  font-family: var(--f-dot);
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}
.nav-logo span { color: var(--orange); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link {
  font-size: var(--t-body-sm);
  color: var(--muted);
  transition: color var(--fast);
}
.nav-link:hover { color: var(--text); }

main { padding-top: var(--nav-h); }
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 88px 24px;
  border-bottom: 1px solid var(--border);
}
.section-head {
  font-family: var(--f-dot);
  font-size: var(--t-h2);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-intro {
  font-size: var(--t-body);
  color: var(--muted);
  line-height: 1.7;
  max-width: none;
  margin-bottom: 32px;
}
.section-head:focus-visible { outline-offset: 4px; }

.hero-section { padding-top: 48px; }
.hero-headline {
  font-family: var(--f-dot);
  font-size: clamp(24px, 4.5vw, 36px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.25;
  text-transform: uppercase;
  max-width: none;
  margin-bottom: 16px;
}
.hero-sub {
  color: var(--muted);
  font-size: var(--t-h3);
  line-height: 1.6;
  max-width: none;
  margin-bottom: 36px;
  text-transform: none;
}
.hero-dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}
.hero-col-label {
  font-family: var(--f-dot);
  font-size: 7px;
  letter-spacing: 0.16em;
  color: var(--orange);
  margin-bottom: 8px;
}
.hero-col-line { font-size: 11px; color: var(--muted); margin-bottom: 16px; line-height: 1.5; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 10px; }

.mechanism-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.mechanism-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 24px;
}
.mechanism-card h3 {
  font-family: var(--f-dot);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text);
  margin-bottom: 12px;
}
.mechanism-card p { color: var(--muted); font-size: 11px; line-height: 1.6; }
.mechanism-caption { font-size: 11px; color: var(--muted); font-style: italic; }

.teardown-wrap { max-width: 640px; }
.teardown-retention-banner {
  margin-bottom: 16px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: var(--raised);
  font-size: 10px;
  color: var(--muted);
  line-height: 1.6;
}
#teardown-step-1,
#teardown-step-2,
#teardown-step-3 { margin-top: 20px; }
.teardown-file-name { font-family: var(--f-dot); font-size: 10px; color: var(--text); margin-top: 4px; word-break: break-all; }
.sector-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.teardown-legal { font-size: 9px; color: var(--muted-legal); margin-top: 12px; }
.teardown-legal a { color: var(--muted); text-decoration: underline; }
.teardown-promise { margin-top: 16px; padding: 12px; border: 1px solid var(--border); font-size: 10px; color: var(--muted); line-height: 1.6; }
.abandon-nudge {
  margin-top: 20px;
  margin-bottom: 4px;
  padding: 10px 12px;
  border: 1px solid var(--amber);
  background: var(--a-dim);
  font-size: 10px;
  color: var(--amber);
}

.feed-line {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--f-body);
  font-size: var(--t-body-sm);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--base), transform var(--base);
}
.feed-line.visible { opacity: 1; transform: translateY(0); }
.reg-intro {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.65;
  max-width: 640px;
  margin-bottom: 16px;
}
.attention-line { margin-top: 24px; font-size: 12px; color: var(--muted); line-height: 1.65; max-width: 560px; }
.teardown-processing-msg {
  font-family: var(--f-dot);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 24px 0;
}
#teardown-step-3-results .abandon-nudge {
  display: block;
}
.teardown-summary-headline {
  font-family: var(--f-dot);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.teardown-disclaimer {
  margin-top: 14px;
  font-size: 9px;
  color: var(--muted-legal);
  line-height: 1.55;
}
.findings-board {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.finding-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-s);
  padding: 12px 14px;
}
.finding-card .finding-sev {
  font-family: var(--f-dot);
  font-size: 7px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}
.finding-card .finding-title {
  font-size: 11px;
  line-height: 1.45;
  margin-bottom: 4px;
}
.finding-card .finding-detail {
  font-size: 9px;
  color: var(--muted);
  line-height: 1.5;
}
.finding-card .finding-rule {
  font-family: var(--f-mono);
  font-size: 7px;
  color: var(--muted-legal);
  margin-top: 6px;
  display: inline-block;
  border: 1px solid var(--border);
  padding: 2px 6px;
}
.finding-card.severity-critical { border-left-color: var(--red); background: var(--r-dim); }
.finding-card.severity-critical .finding-sev { color: var(--red); }
.finding-card.severity-high { border-left-color: var(--orange); background: var(--o-dim); }
.finding-card.severity-high .finding-sev { color: var(--orange); }
.finding-card.severity-medium,
.finding-card.severity-low { border-left-color: var(--amber); background: var(--a-dim); }
.finding-card.severity-medium .finding-sev,
.finding-card.severity-low .finding-sev { color: var(--amber); }
.finding-card.severity-ok { border-left-color: var(--green); background: var(--g-dim); }
.finding-card.severity-ok .finding-sev { color: var(--green); }

.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 32px; }
.trust-card { background: var(--card); border: 1px solid var(--border); padding: 20px; }
.trust-card h3 {
  font-family: var(--f-dot);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text);
  margin-bottom: 10px;
}
.trust-card p { font-size: 10px; color: var(--muted); line-height: 1.55; }
.founder-block { display: flex; gap: 16px; align-items: flex-start; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--border); }
.founder-avatar { width: 48px; height: 48px; background: var(--raised); border: 1px solid var(--border); }
.founder-name { font-family: var(--f-dot); font-size: 10px; letter-spacing: 0.1em; margin-bottom: 6px; }
.design-partner { margin-top: 16px; font-size: 10px; color: var(--muted); }

.roadmap-tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.roadmap-tier { background: var(--card); border: 1px solid var(--border); padding: 20px; }
.roadmap-tier .tier-label { font-family: var(--f-dot); font-size: 8px; letter-spacing: 0.16em; color: var(--orange); margin-bottom: 10px; }
.roadmap-tier p { font-size: 10px; color: var(--muted); line-height: 1.55; }

.site-footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px 24px 60px;
}
.footer-pitch { color: var(--muted); font-size: 11px; max-width: 520px; margin-bottom: 20px; line-height: 1.6; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; font-size: 10px; color: var(--muted); }
.footer-links a:hover { color: var(--text); }

.book-layout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: calc(var(--nav-h) + 48px) 24px 80px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}
.book-context h1 {
  font-family: var(--f-dot);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.book-context p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
  margin-bottom: 12px;
  text-transform: none;
}
.book-layout--form {
  grid-template-columns: 1fr 1.1fr;
  align-items: start;
}
.book-note {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.6;
  margin-top: 12px;
}

.auth-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.auth-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--surface);
}
.auth-tab {
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--f-dot);
  font-size: var(--t-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color var(--fast), background var(--fast);
}
.auth-tab:last-child { border-right: none; }
.auth-tab--active,
.auth-tab[aria-selected="true"] {
  color: var(--text);
  background: var(--card);
}
.auth-form {
  border-top: none;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-family: var(--f-dot);
  font-size: var(--t-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.form-optional { color: var(--muted-legal); text-transform: lowercase; letter-spacing: 0; }
.form-hint {
  font-size: 10px;
  color: var(--muted-legal);
  margin-bottom: 8px;
  text-transform: none;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--text);
  font-family: var(--f-body);
  font-size: var(--t-body-sm);
  padding: 10px 12px;
  text-transform: none;
}
.form-field textarea { resize: vertical; min-height: 72px; line-height: 1.5; }
.form-field select { cursor: pointer; }
fieldset.form-field { border: none; padding: 0; margin: 0; }
fieldset.form-field legend { margin-bottom: 4px; }

.slot-fieldset .form-hint { margin-bottom: 12px; }

.slot-picker {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.slot-day-heading {
  font-family: var(--f-dot);
  font-size: 10px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.slot-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.slot-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 9px 16px;
  border: 1px solid rgba(237, 123, 28, 0.45);
  border-radius: 0;
  background: var(--card);
  color: var(--orange);
  font-family: var(--f-dot);
  font-size: var(--t-body-sm);
  font-weight: 500;
  line-height: 1;
  text-transform: none;
  cursor: pointer;
  user-select: none;
  transition:
    border-color var(--fast),
    background var(--fast),
    color var(--fast),
    box-shadow var(--fast);
}

.slot-pill:hover {
  border-color: var(--orange);
  background: var(--o-dim);
}

.slot-pill:has(input:checked) {
  border-color: var(--orange);
  background: var(--orange);
  color: #000;
  box-shadow: 0 0 0 1px var(--orange);
}

.slot-pill:has(input:focus-visible) {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.slot-pill-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.slot-pill-text {
  pointer-events: none;
}

.slot-selection-count {
  margin-top: 10px;
  font-size: 10px;
  color: var(--muted);
  text-transform: none;
}

.form-err {
  font-size: 10px;
  color: var(--red);
  padding: 8px 10px;
  border: 1px solid rgba(255, 43, 0, 0.25);
  background: var(--r-dim);
}
.form-success {
  font-size: 10px;
  color: var(--green);
  padding: 8px 10px;
  border: 1px solid rgba(61, 204, 71, 0.2);
  background: var(--g-dim);
}

@media (max-width: 768px) {
  .hero-dual, .mechanism-grid, .trust-grid, .roadmap-tiers, .book-layout, .book-layout--form { grid-template-columns: 1fr; }
  .nav-links .nav-link:not(.nav-cta) { display: none; }
}