/* Hallmark · macrostructure: Map / Diagram · tone: optimistic, tactile, quietly technical
 * theme: custom · vibe: "continuity paper, cobalt thread, human memory" · paper: oklch(97% 0.012 92) · accent: oklch(48% 0.285 264)
 * display: Bricolage Grotesque · body: IBM Plex Sans · axes: light / geometric-sans / cool
 * H9 custom illustration: Tier-B SVG, dominant, draw-on once · nav: N9 · footer: Ft5
 * contrast: pass (40–41) · slop: pass (42–49) · mobile: pass (34, 49–57)
 * Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V5
 */
@import url('./tokens.css');

* { box-sizing: border-box; }
html, body { margin: 0; overflow-x: clip; }
html { scroll-behavior: smooth; }
body {
  min-height: 100svh;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
figure { margin: 0; }
a { color: inherit; text-decoration-thickness: var(--rule-hair); text-underline-offset: 0.22em; }
::selection { background: var(--color-thread-soft); color: var(--color-ink); }

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: -100%;
  z-index: var(--z-sticky);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
}
.skip-link:focus-visible { inset-inline-start: var(--space-sm); }

.shell {
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

/* N9: the silence in the middle is intentional. */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  gap: var(--space-lg);
}
.nav__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-inline: auto var(--space-lg);
}
.nav__links a {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.nav__links a:hover { color: var(--color-thread-deep); }
.nav__links a:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 750;
  letter-spacing: -0.035em;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark__loop {
  position: relative;
  width: 1.7rem;
  height: 1.05rem;
}
.wordmark__loop::before,
.wordmark__loop::after {
  content: '';
  position: absolute;
  inset-block-start: 50%;
  width: 0.85rem;
  height: 0.85rem;
  border: var(--rule-medium) solid var(--color-thread);
  border-radius: 50%;
  transform: translateY(-50%);
}
.wordmark__loop::before { inset-inline-start: 0; }
.wordmark__loop::after { inset-inline-end: 0; }

.nav__cta,
.button,
.copy-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 3rem;
  padding-inline: var(--space-lg);
  border: var(--rule-medium) solid var(--color-ink);
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out);
}
.nav__cta:hover,
.button:hover,
.copy-action:hover { background: var(--color-ink); color: var(--color-paper); }
.nav__cta:active,
.button:active,
.copy-action:active { transform: translateY(1px); }
.nav__cta:focus-visible,
.button:focus-visible,
.copy-action:focus-visible,
details summary:focus-visible,
.node-link:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.button[disabled],
.copy-action[disabled],
.nav__cta[aria-disabled='true'],
.button[aria-disabled='true'] { opacity: 0.48; cursor: not-allowed; pointer-events: none; }
.button[data-state='loading'] { cursor: wait; }
.button[data-state='error'] { border-color: var(--color-danger); color: var(--color-danger); }
.button[data-state='success'] { border-color: var(--color-success); color: var(--color-success); }

/* Hero: text is an orientation key; the map carries the concept. */
.hero {
  padding-block: clamp(3rem, 5vw, 5rem) 7rem;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 7rem);
}
.hero__copy { min-width: 0; }
.hero__kicker {
  max-width: 24rem;
  margin: 0 0 var(--space-lg);
  color: var(--color-thread-deep);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.05em;
}
.hero h1 {
  max-width: 10ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 750;
  line-height: 0.96;
  letter-spacing: -0.055em;
  overflow-wrap: anywhere;
  min-width: 0;
}
.hero h1 span { color: var(--color-thread); }
.hero__lede {
  max-width: 55ch;
  margin: var(--space-xl) 0 0;
  color: var(--color-ink-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
  line-height: 1.55;
}
.hero__lede strong { color: var(--color-ink); font-weight: 600; }

.setup {
  margin-block-start: var(--space-xl);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  max-width: 37rem;
  border-block: var(--rule-hair) solid var(--color-rule-strong);
}
.setup__copy {
  margin: 0;
  padding: var(--space-md) var(--space-md) var(--space-md) 0;
  color: var(--color-ink);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.setup__copy small {
  display: block;
  margin-block-end: var(--space-xs);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}
.copy-action {
  align-self: stretch;
  border: 0;
  border-inline-start: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: 0;
  padding-inline: var(--space-md);
}
.copy-action[data-state='copied'] { background: var(--color-thread); color: var(--color-on-thread); }
.copy-action[data-state='loading'] { cursor: wait; opacity: 0.7; }
.copy-action[data-state='error'] { color: var(--color-danger); }

.hero__fine {
  margin: var(--space-md) 0 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.continuity-map {
  position: relative;
  width: 100%;
  min-width: 0;
  aspect-ratio: 10 / 9;
}
.continuity-map svg { display: block; width: 100%; height: 100%; overflow: visible; }
.map__paper { fill: var(--color-paper-deep); }
.map__paper-blue { fill: var(--color-paper-blue); }
.map__ink { fill: var(--color-ink); }
.map__muted { fill: var(--color-muted); }
.map__line { fill: none; stroke: var(--color-thread); stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }
.map__line--ghost { stroke: var(--color-thread-soft); stroke-width: 22; }
.map__thread {
  stroke-dasharray: 920;
  stroke-dashoffset: 920;
  animation: thread-in 1.25s var(--ease-out) 180ms forwards;
}
.map__node { fill: var(--color-paper); stroke: var(--color-ink); stroke-width: 2; }
.map__node--thread { fill: var(--color-thread); stroke: var(--color-thread); }
.map__node--restore { fill: var(--color-paper-blue); stroke: var(--color-thread); stroke-width: 3; }
.map__file { fill: var(--color-paper); stroke: var(--color-rule-strong); stroke-width: 1.5; }
.map__label { fill: var(--color-ink); font-family: var(--font-body); font-size: 16px; font-weight: 600; }
.map__small { fill: var(--color-muted); font-family: var(--font-body); font-size: 11px; }
.map__inverse { fill: var(--color-on-thread); }
.map__dash { fill: none; stroke: var(--color-rule-strong); stroke-width: 1.5; stroke-dasharray: 5 7; }
.map__lock { fill: none; stroke: var(--color-on-thread); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
@keyframes thread-in { to { stroke-dashoffset: 0; } }

.map-legend {
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding-inline: 3%;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}
.map-legend span { display: inline-flex; align-items: center; gap: var(--space-xs); }
.map-legend i { width: 0.7rem; height: 0.7rem; border-radius: 50%; background: var(--color-thread); }

/* A short thesis breaks the map from the product details. */
.promise {
  border-block: var(--rule-hair) solid var(--color-rule);
  padding-block: var(--space-2xl);
}
.promise__line {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
  gap: var(--space-2xl);
  align-items: end;
}
.promise h2 {
  max-width: 14ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
}
.promise p { margin: 0; color: var(--color-ink-soft); font-size: var(--text-md); }
.promise p strong { color: var(--color-thread-deep); }

/* Two skills are lanes in the same system, not equal template cards. */
.skills-section { padding-block: var(--space-4xl) var(--space-3xl); }
.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: var(--space-2xl);
  align-items: start;
}
.section-intro h2,
.security h2,
.recovery h2,
.pricing h2,
.answers h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 4vw, 4rem);
  font-weight: 720;
  line-height: 1.02;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
  min-width: 0;
}
.section-intro p { max-width: 38rem; margin: 0; color: var(--color-ink-soft); font-size: var(--text-md); }

.skill-lanes {
  position: relative;
  display: grid;
  gap: var(--space-2xl);
  margin-block-start: var(--space-3xl);
}
.skill-lanes::before {
  content: '';
  position: absolute;
  inset-block: 2rem;
  inset-inline-start: calc(50% - 1px);
  width: var(--rule-medium);
  background: var(--color-thread);
}
.lane {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: var(--space-xl);
  align-items: center;
  min-height: 19rem;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  background: var(--color-paper-deep);
  border-radius: var(--radius-lg);
}
.lane--restore { margin-inline-start: 10%; background: var(--color-paper-blue); }
.lane::after {
  content: '';
  position: absolute;
  inset-inline-start: calc(50% - 0.55rem);
  inset-block-start: 50%;
  width: 1.1rem;
  height: 1.1rem;
  border: var(--rule-medium) solid var(--color-paper);
  border-radius: 50%;
  background: var(--color-thread);
  transform: translateY(-50%);
}
.lane__name {
  max-width: 14ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.7rem);
  font-weight: 720;
  line-height: 0.98;
  letter-spacing: -0.05em;
  overflow-wrap: anywhere;
}
.lane__body { max-width: 60ch; }
.lane__timing {
  margin: 0 0 var(--space-sm);
  color: var(--color-thread-deep);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}
.lane__body p { margin: 0; color: var(--color-ink-soft); }
.lane__body strong { color: var(--color-ink); }
.lane__command {
  display: inline-block;
  margin-block-start: var(--space-lg);
  color: var(--color-thread-deep);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

/* Zero knowledge: ownership is the composition. */
.security { padding-block: var(--space-3xl) var(--space-4xl); }
.security__head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(17rem, 0.9fr);
  gap: var(--space-2xl);
  align-items: end;
}
.security__head p { margin: 0; color: var(--color-ink-soft); font-size: var(--text-md); }
.ownership {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  gap: var(--space-md);
  margin-block-start: var(--space-3xl);
}
.ownership__server,
.ownership__you {
  min-width: 0;
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
}
.ownership__server { background: var(--color-paper-deep); }
.ownership__you {
  background: var(--color-paper-blue);
  color: var(--color-ink);
  border: var(--rule-medium) solid var(--color-thread);
}
.ownership h3 { margin: 0 0 var(--space-xl); font-family: var(--font-display); font-size: var(--text-xl); letter-spacing: -0.035em; }
.ownership ul { margin: 0; padding: 0; list-style: none; }
.ownership li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-md);
  border-block-start: var(--rule-hair) solid var(--color-rule);
}
.ownership__you h3 { color: var(--color-thread-deep); }
.ownership__you li { border-color: var(--color-rule-strong); }
.ownership li span:last-child { font-family: var(--font-body); font-size: var(--text-xs); }
.ownership__note { margin: var(--space-lg) 0 0; font-size: var(--text-sm); opacity: 0.78; }

/* The emotional payoff: a before/after with a single connecting line. */
.recovery {
  padding-block: var(--space-4xl);
  background: var(--color-ink);
  color: var(--color-paper);
}
.recovery .shell { display: grid; gap: var(--space-3xl); }
.recovery__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(17rem, 0.7fr);
  gap: var(--space-2xl);
  align-items: end;
}
.recovery__head p { margin: 0; color: var(--color-rule); font-size: var(--text-md); }
.recovery__moment {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
}
.machine {
  min-height: 20rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-xl);
  border: var(--rule-hair) solid var(--color-muted);
  border-radius: var(--radius-md);
}
.machine--new { border-color: var(--color-thread-soft); background: var(--color-thread-deep); }
.machine__status { color: var(--color-rule); font-family: var(--font-body); font-size: var(--text-xs); }
.machine h3 { max-width: 12ch; margin: 0; font-family: var(--font-display); font-size: var(--text-2xl); line-height: 1.02; letter-spacing: -0.04em; }
.machine p { margin: var(--space-md) 0 0; color: var(--color-rule); }
.machine--new p { color: var(--color-on-thread); }
.recovery__arrow { color: var(--color-thread-soft); font-family: var(--font-body); font-size: var(--text-lg); white-space: nowrap; }

/* Pricing is a capacity sheet, not two floating SaaS cards. */
.pricing { padding-block: var(--space-4xl); }
.pricing__head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: var(--space-2xl);
  align-items: end;
}
.pricing__head p { max-width: 38rem; margin: 0; color: var(--color-ink-soft); font-size: var(--text-md); }
.plans { margin-block-start: var(--space-3xl); border-block-start: var(--rule-medium) solid var(--color-ink); }
.plan {
  display: grid;
  grid-template-columns: minmax(7rem, 0.3fr) minmax(8rem, 0.4fr) minmax(0, 1.3fr) auto;
  gap: var(--space-xl);
  align-items: center;
  min-height: 8.5rem;
  padding-block: var(--space-lg);
  border-block-end: var(--rule-hair) solid var(--color-rule-strong);
}
.plan__name { margin: 0; font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; }
.plan__price { margin: 0; font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.04em; }
.plan__price small { display: block; color: var(--color-muted); font-family: var(--font-body); font-size: var(--text-sm); font-weight: 400; letter-spacing: 0; }
.plan__facts { margin: 0; color: var(--color-ink-soft); }
.plan__facts strong { color: var(--color-ink); }
.plan .button--primary { background: var(--color-thread); border-color: var(--color-thread); color: var(--color-on-thread); }
.plan .button--primary:hover { background: var(--color-thread-deep); border-color: var(--color-thread-deep); }

.answers { padding-block: var(--space-2xl) var(--space-4xl); }
.answers__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: var(--space-3xl);
}
.answers__list { border-block-start: var(--rule-medium) solid var(--color-ink); }
details { border-block-end: var(--rule-hair) solid var(--color-rule-strong); }
details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4.5rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 650;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: '+'; color: var(--color-thread); font-family: var(--font-mono); }
details[open] summary::after { content: '−'; }
details div { max-width: 46rem; padding-block: 0 var(--space-lg); color: var(--color-ink-soft); }
details div p { margin: 0; }

/* Ft5 statement. */
.footer {
  padding-block: var(--space-4xl) var(--space-xl);
  background: var(--color-paper-blue);
}
.footer__statement {
  max-width: 18ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  font-weight: 750;
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.footer__statement span { color: var(--color-thread); }
.footer__meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-xl);
  align-items: baseline;
  margin-block-start: var(--space-3xl);
  padding-block-start: var(--space-md);
  border-block-start: var(--rule-hair) solid var(--color-rule-strong);
  color: var(--color-muted);
  font-size: var(--text-sm);
}
.footer__links { display: flex; flex-wrap: wrap; gap: var(--space-lg); }
.footer__links a { color: var(--color-ink); white-space: nowrap; }

@media (max-width: 59.99rem) {
  .hero__grid,
  .promise__line,
  .section-intro,
  .security__head,
  .recovery__head,
  .pricing__head,
  .answers__grid { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-block-start: var(--space-2xl); }
  .hero__copy { max-width: 42rem; }
  .continuity-map { max-width: 46rem; margin-inline: auto; }
  .lane--restore { margin-inline-start: 0; }
  .skill-lanes::before { inset-inline-start: 1.5rem; }
  .lane { grid-template-columns: minmax(0, 1fr); padding-inline-start: 4rem; }
  .lane::after { inset-inline-start: 0.95rem; }
  .ownership { grid-template-columns: minmax(0, 1fr); }
  .recovery__moment { grid-template-columns: minmax(0, 1fr); }
  .recovery__arrow { transform: rotate(90deg); justify-self: center; }
  .plan { grid-template-columns: minmax(6rem, 0.45fr) minmax(7rem, 0.55fr) minmax(0, 1fr); }
  .plan .button { grid-column: 1 / -1; justify-self: start; }
}

@media (max-width: 39.99rem) {
  .nav { min-height: 4.5rem; }
  .nav__links { display: none; }
  .nav__cta { min-height: 2.75rem; padding-inline: var(--space-md); }
  .hero { padding-block-start: var(--space-xl); }
  .hero h1 { max-width: 9ch; }
  .setup { grid-template-columns: minmax(0, 1fr); }
  .setup__copy { padding-inline: 0; }
  .copy-action { min-height: 3.25rem; border-inline-start: 0; border-block-start: var(--rule-hair) solid var(--color-rule-strong); }
  .map-legend { position: static; flex-direction: column; padding-inline: 0; }
  .continuity-map { display: grid; gap: var(--space-md); aspect-ratio: auto; }
  .continuity-map svg { aspect-ratio: 10 / 9; }
  .skills-section { padding-block-start: var(--space-3xl); }
  .skill-lanes { margin-block-start: var(--space-2xl); }
  .lane { min-height: 0; padding-inline-start: 3.25rem; }
  .skill-lanes::before { inset-inline-start: 1rem; }
  .lane::after { inset-inline-start: 0.45rem; }
  .ownership li { flex-direction: column; }
  .machine { min-height: 15rem; }
  .plan { grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-md); }
  .plan__facts { grid-column: 1 / -1; }
  .plan .button { grid-column: 1 / -1; width: 100%; }
  .footer__meta { align-items: flex-start; flex-direction: column; }
}

@media (hover: hover) and (pointer: fine) {
  .nav__cta:hover,
  .button:hover { transform: translateY(-1px); }
  .lane { transition: transform var(--dur-short) var(--ease-out); }
  .lane:hover { transform: translateX(3px); }
}

@media (pointer: coarse) {
  .nav__cta,
  .button,
  .copy-action,
  details summary { min-height: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 150ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; }
  .map__thread { stroke-dashoffset: 0; animation: none; }
}