/* ============================================================
   Kiken corporate site — design system
   Palette: cool paper / ink / signal vermillion / hazard yellow
   Type: Archivo (expanded display) · Public Sans (body) · IBM Plex Mono (data)
   ============================================================ */

:root {
  --paper: #f5f5f0;
  --paper-raised: #ffffff;
  --paper-sunken: #ecece3;
  --ink: #17191d;
  --ink-soft: #3a3f46;
  --steel: #5c636c;
  --line: #dbdcd2;
  --line-strong: #c9cabf;
  --signal: #d8351f;
  --signal-ink: #a8250f;
  --hazard: #e8b10e;
  --ok: #2e7d4f;
  --console: #101318;
  --console-line: #2a303a;
  --console-text: #c9cfd6;
  --console-dim: #7c8590;

  --font-display: "Archivo", "Helvetica Neue", sans-serif;
  --font-body: "Public Sans", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

main a:not([class]) {
  color: var(--signal-ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

main a:not([class]):hover {
  color: var(--signal);
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.container {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  z-index: 200;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
  border-radius: 0 0 6px 6px;
}

.skip-link:focus {
  top: 0;
}

/* ---------- type utilities ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 14px;
}

.eyebrow-signal {
  color: var(--signal);
}

.section-title {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  max-width: 22ch;
}

.section-sub {
  margin-top: 16px;
  color: var(--steel);
  max-width: 58ch;
}

.section-head {
  margin-bottom: 48px;
}

.accent {
  color: var(--signal);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  padding: 12px 20px;
  border-radius: 6px;
  border: 1.5px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-lg {
  padding: 15px 26px;
  font-size: 1rem;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.btn-primary {
  background: var(--signal);
  color: #fff;
}

.btn-primary:hover {
  background: var(--signal-ink);
}

.btn-ghost {
  border-color: var(--ink);
  color: var(--ink);
  background: transparent;
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-ghost-dark {
  border-color: var(--console-dim);
  color: var(--paper);
  background: transparent;
}

.btn-ghost-dark:hover {
  border-color: var(--paper);
}

/* ---------- banners ---------- */

.banner {
  margin-top: 24px;
  max-width: 640px;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 0.95rem;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink-soft);
}

.banner-ok {
  border-color: var(--ok);
  background: #e9f3ec;
  color: #1f5a38;
}

.banner-error {
  border-color: var(--signal);
  background: #fbeae7;
  color: #8c2113;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 245, 240, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  width: 20px;
  height: 20px;
  background: var(--signal);
  border-radius: 3px;
  transform: rotate(45deg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-mark-wire {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--paper);
  transform: rotate(-45deg);
}

.brand-word {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 850;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.brand-invert .brand-word {
  color: var(--paper);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--ink);
}

.nav-link[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--signal);
}

.nav-cta {
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--ink);
}

/* ---------- hero ---------- */

.hero {
  padding: 88px 0 96px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-display);
  font-stretch: 118%;
  font-weight: 850;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.hero-sub {
  margin-top: 22px;
  font-size: 1.12rem;
  color: var(--steel);
  max-width: 50ch;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-fineprint {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--steel);
}

/* ---------- hero demo (tracer simulation) ---------- */

.hero-demo {
  display: flex;
  flex-direction: column;
}

.demo-doc {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 16px 18px;
  box-shadow: 0 1px 2px rgba(23, 25, 29, 0.05);
}

.demo-doc-icon {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  border: 1.5px solid var(--ink);
  border-radius: 4px;
  padding: 6px 7px;
}

.demo-doc-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.demo-doc-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo-doc-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--steel);
  letter-spacing: 0.03em;
}

.demo-doc-stamp {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--signal);
  border: 1px solid var(--signal);
  border-radius: 3px;
  padding: 3px 7px;
  flex-shrink: 0;
}

.demo-wire {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  min-height: 86px;
}

.demo-wire-line {
  flex: 1;
  width: 0;
  border-left: 2px dashed var(--line-strong);
  min-height: 16px;
}

.demo-wire-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--steel);
  text-transform: uppercase;
}

.demo-alert {
  background: var(--console);
  color: var(--console-text);
  border-radius: 10px;
  padding: 20px 22px;
  font-family: var(--font-mono);
  box-shadow: 0 12px 32px rgba(23, 25, 29, 0.18);
}

.js .demo-alert {
  animation: alert-in 0.5s ease 1.3s both;
}

.demo-alert-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--console-line);
}

.demo-alert-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  flex-shrink: 0;
}

.js .demo-alert-dot {
  animation: dot-pulse 2s ease-out 1.8s infinite;
}

.demo-alert-title {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: #fff;
}

.demo-alert-time {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--console-dim);
}

.demo-alert-rows {
  padding: 14px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.demo-alert-row {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
}

.demo-alert-key {
  width: 96px;
  flex-shrink: 0;
  color: var(--console-dim);
}

.demo-alert-val {
  color: var(--console-text);
}

.demo-alert-foot {
  padding-top: 12px;
  border-top: 1px solid var(--console-line);
  font-size: 0.76rem;
  color: var(--console-dim);
}

@keyframes alert-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes dot-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(216, 53, 31, 0.55);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(216, 53, 31, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(216, 53, 31, 0);
  }
}

/* ---------- detect strip ---------- */

.detect-strip {
  background: var(--ink);
  color: var(--paper);
}

.detect-strip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  padding-block: 14px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.detect-strip-label {
  color: var(--signal);
  font-weight: 600;
  letter-spacing: 0.18em;
}

.detect-item {
  opacity: 0.85;
}

.detect-item-accent {
  color: var(--hazard);
  text-transform: none;
  opacity: 1;
}

.detect-strip-formats {
  margin-left: auto;
  color: var(--console-dim);
}

/* ---------- sections ---------- */

.mechanisms {
  padding: 96px 0 104px;
}

.mech {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  border-top: 2px solid var(--ink);
  margin-top: 56px;
  padding-top: 40px;
}

.mech-stamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  padding: 4px 9px;
  margin-bottom: 16px;
}

.mech-stamp-b {
  border-color: var(--signal);
  color: var(--signal);
}

.mech-title {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
}

.mech-answer {
  margin-top: 8px;
  color: var(--steel);
}

.mech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 62ch;
}

.mech-list li {
  color: var(--steel);
  padding-left: 18px;
  border-left: 2px solid var(--line-strong);
}

.mech-list strong {
  color: var(--ink);
}

.mech-honest {
  grid-column: 2;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-soft);
  background: var(--paper-raised);
  border-left: 3px solid var(--signal);
  border-radius: 0 6px 6px 0;
  padding: 14px 18px;
  max-width: 62ch;
}

.pipeline {
  background: var(--paper-raised);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 96px 0;
}

.pipeline-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

.pipeline-step h3 {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: 1.15rem;
  margin: 10px 0 8px;
}

.pipeline-step p {
  color: var(--steel);
  font-size: 0.96rem;
}

.pipeline-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--signal);
  border: 1.5px solid var(--signal);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pipeline-note {
  margin-top: 44px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 18px;
  max-width: 72ch;
}

/* ---------- boundaries / hazard ---------- */

.hazard-stripe {
  height: 10px;
  background: repeating-linear-gradient(
    -45deg,
    var(--hazard) 0 14px,
    var(--ink) 14px 28px
  );
}

.boundaries {
  padding-bottom: 96px;
}

.boundaries .container {
  padding-top: 88px;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.boundary-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-top: 3px solid var(--ink);
  border-radius: 0 0 8px 8px;
  padding: 24px;
}

.boundary-card h3 {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.boundary-card p {
  color: var(--steel);
  font-size: 0.95rem;
}

.boundaries-link {
  margin-top: 40px;
}

/* ---------- operations ---------- */

.operations {
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.ops-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.ops-grid .section-head {
  margin-bottom: 0;
}

.ops-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ops-list li {
  color: var(--ink-soft);
  padding-left: 16px;
  border-left: 2px solid var(--signal);
  font-size: 0.98rem;
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--console);
  color: var(--paper);
  padding: 76px 0;
}

.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}

.cta-band-title {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.cta-band-body {
  margin-top: 12px;
  color: var(--console-text);
  max-width: 52ch;
}

.cta-band-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--ink);
  color: var(--console-text);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-block: 64px 48px;
}

.footer-tagline {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--console-dim);
}

.footer-note {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--console-dim);
  max-width: 42ch;
}

.footer-head {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--console-dim);
  margin-bottom: 14px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-col a {
  color: var(--console-text);
  text-decoration: none;
  font-size: 0.94rem;
  padding: 5px 0;
}

.footer-col a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-legal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--console-line);
  padding-block: 22px 40px;
  font-size: 0.82rem;
  color: var(--console-dim);
}

.footer-legal-mono {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
}

/* ---------- subpage hero ---------- */

.page-hero {
  padding: 80px 0 56px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-family: var(--font-display);
  font-stretch: 118%;
  font-weight: 850;
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 24ch;
}

.page-sub {
  margin-top: 18px;
  font-size: 1.08rem;
  color: var(--steel);
  max-width: 58ch;
}

.notfound {
  border-bottom: none;
  padding-bottom: 120px;
}

.notfound .hero-actions {
  margin-top: 28px;
}

/* ---------- product detail ---------- */

.detail {
  padding: 88px 0;
}

.detail-alt {
  background: var(--paper-raised);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-head {
  margin-bottom: 44px;
}

.detail-head .mech-stamp {
  margin-bottom: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 28px;
}

.detail-card {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}

.detail-card h3 {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.detail-card p {
  color: var(--steel);
  font-size: 0.93rem;
}

.detail-card p + p {
  margin-top: 8px;
}

.mono-block {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
  margin-bottom: 10px;
  color: var(--ink) !important;
}

.arch-row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.arch-node {
  background: var(--paper-raised);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  padding: 16px 24px;
}

.arch-node-title {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: 1rem;
}

.arch-node-body {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel);
  margin-top: 4px;
}

.arch-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel);
  letter-spacing: 0.04em;
}

/* ---------- scenario table ---------- */

.scenarios {
  padding-bottom: 96px;
}

.scenarios .container {
  padding-top: 88px;
}

.scenario-table {
  border-top: 2px solid var(--ink);
}

.scenario-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.scenario-row-head {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  padding: 12px 0;
}

.scenario-row span[role="cell"]:last-child {
  color: var(--steel);
  font-size: 0.96rem;
}

.scenario-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--ok);
  border: 1px solid var(--ok);
  border-radius: 3px;
  padding: 2px 6px;
  margin-right: 10px;
  vertical-align: 2px;
  white-space: nowrap;
}

.scenario-row-out .scenario-badge {
  color: var(--signal);
  border-color: var(--signal);
}

.scenario-row-out span[role="cell"] {
  color: var(--steel);
}

/* ---------- roadmap ---------- */

.roadmap {
  padding: 88px 0 96px;
  background: var(--paper-raised);
  border-top: 1px solid var(--line);
}

.roadmap-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.roadmap-head {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-bottom: 10px;
  margin-bottom: 6px;
  border-bottom: 2px solid var(--ink);
}

.roadmap-head-now {
  color: var(--ok);
  border-color: var(--ok);
}

.roadmap-head-next {
  color: #8a6a08;
  border-color: var(--hazard);
}

.roadmap-col ul {
  list-style: none;
}

.roadmap-col li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.97rem;
}

/* ---------- pricing ---------- */

.pricing {
  padding: 72px 0 88px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 30px 28px;
}

.price-card-featured {
  border: 2px solid var(--ink);
  box-shadow: 0 16px 40px rgba(23, 25, 29, 0.1);
}

.price-flag {
  position: absolute;
  top: -13px;
  left: 24px;
  background: var(--signal);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 3px;
  padding: 4px 10px;
}

.price-tier {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.price-amount {
  font-family: var(--font-display);
  font-stretch: 118%;
  font-weight: 850;
  font-size: 2.6rem;
  letter-spacing: -0.02em;
  margin-top: 10px;
  line-height: 1;
}

.price-when {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel);
  margin-top: 6px;
}

.price-for {
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.price-list {
  list-style: none;
  margin: 20px 0 26px;
  flex: 1;
}

.price-list li {
  padding: 8px 0 8px 16px;
  border-left: 2px solid var(--line);
  color: var(--steel);
  font-size: 0.93rem;
}

.price-fineprint {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--steel);
}

/* ---------- FAQ ---------- */

.faq {
  padding: 88px 0 104px;
  background: var(--paper-raised);
  border-top: 1px solid var(--line);
}

.faq-list {
  max-width: 760px;
}

.faq-item {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}

.faq-item dt {
  font-family: var(--font-display);
  font-stretch: 112%;
  font-weight: 800;
  font-size: 1.06rem;
}

.faq-item dd {
  margin-top: 10px;
  color: var(--steel);
  max-width: 64ch;
}

/* ---------- forms / signup ---------- */

.signup {
  padding: 72px 0 96px;
}

.signup-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.form-card {
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 30px 28px;
}

.form-plan-note {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  background: #fbf3dc;
  border: 1px solid var(--hazard);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 20px;
  color: #6b5306;
}

.field {
  display: block;
  margin-bottom: 18px;
}

.field-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 7px;
}

.field-optional {
  text-transform: none;
  letter-spacing: 0.02em;
  font-weight: 400;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 11px 13px;
}

.field textarea {
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--signal);
  outline-offset: 0;
  border-color: var(--signal);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field-trap {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-privacy {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--steel);
}

.signup-aside-title {
  font-family: var(--font-display);
  font-stretch: 115%;
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.next-steps {
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.next-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  color: var(--steel);
}

.next-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--signal);
  border: 1.5px solid var(--signal);
  border-radius: 50%;
}

.next-steps strong {
  color: var(--ink);
}

.signup-aside-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 20px;
  margin-top: 24px;
  color: var(--steel);
  font-size: 0.95rem;
}

.signup-aside-mono {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--signal);
  margin-bottom: 8px;
}

/* ---------- company ---------- */

.principles {
  padding: 88px 0;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.principle-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 26px;
}

.principle-num {
  display: block;
  font-size: 1.5rem;
  color: var(--signal);
  margin-bottom: 14px;
}

.principle-card h3 {
  font-family: var(--font-display);
  font-stretch: 112%;
  font-weight: 800;
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.principle-card p {
  color: var(--steel);
  font-size: 0.95rem;
}

.built {
  padding: 88px 0 104px;
  background: var(--paper-raised);
  border-top: 1px solid var(--line);
}

.built-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}

.built-grid .section-head {
  margin-bottom: 0;
}

.built-copy p {
  color: var(--ink-soft);
  margin-bottom: 1em;
  max-width: 58ch;
}

/* ---------- reveal on scroll ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.js [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .js .demo-alert,
  .js .demo-alert-dot {
    animation: none;
  }
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .pricing-grid,
  .detail-grid,
  .boundary-grid,
  .principle-grid,
  .pipeline-steps {
    grid-template-columns: 1fr 1fr;
  }

  .signup-grid,
  .ops-grid,
  .built-grid,
  .roadmap-cols {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .mech {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .mech-honest {
    grid-column: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }

  .site-nav .nav-cta {
    margin: 16px 0 0;
    text-align: center;
  }

  .pricing-grid,
  .detail-grid,
  .boundary-grid,
  .principle-grid,
  .pipeline-steps,
  .field-row,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .scenario-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .scenario-row-head span[role="columnheader"]:last-child {
    display: none;
  }

  .hero {
    padding: 56px 0 64px;
  }

  .detect-strip-formats {
    margin-left: 0;
  }

  .cta-band-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}