/* Hallmark · macrostructure: Manifesto · tone: technical-austere · anchor hue: 30° crimson */
/* theme: studied-DNA (source: webclaw.io) · nav: N9 · footer: Ft5 */

@import url("tokens.css");
@import url("https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&family=IBM+Plex+Sans:wght@300;400;500&family=Geist+Mono:wght@300..700&display=swap");

/* ─── RESET ───────────────────────────────────────────────────── */

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

html, body {
  overflow-x: clip; /* gate 62 — clip not hidden */
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-paper);
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ─── SCROLL REVEAL ───────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity var(--dur-lg) var(--ease-out),
    transform var(--dur-lg) var(--ease-out);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-group > * {
  opacity: 0;
  transform: translateY(1rem);
  transition:
    opacity var(--dur-lg) var(--ease-out),
    transform var(--dur-lg) var(--ease-out);
}
.reveal-group.revealed > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0ms; }
.reveal-group.revealed > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 80ms; }
.reveal-group.revealed > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 160ms; }
.reveal-group.revealed > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 240ms; }
.reveal-group.revealed > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 320ms; }

/* ─── FOCUS ───────────────────────────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

/* ─── KEYFRAMES ───────────────────────────────────────────────── */

/* from webclaw.io DNA */
@keyframes label-pulse {
  0%, 100% { opacity: 0.35; }
  50%       { opacity: 0.75; }
}

/* ─── NAV — N9 edge-aligned minimal ──────────────────────────── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-paper);
  border-bottom: 1px solid var(--color-rule);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: clamp(var(--space-lg), 4vw, var(--space-2xl));
  height: 4rem;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  white-space: nowrap;
}

.wordmark-tri {
  color: var(--color-accent);
  font-size: 0.7em;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-family: var(--font-code);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-ink-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color var(--dur-xs) var(--ease-out);
}
.nav-link:hover { color: var(--color-ink); }

.nav-install {
  color: var(--color-accent);
  font-weight: 500;
}
.nav-install:hover { color: var(--color-accent-2); }

/* ─── SHARED SECTION WRAPPER ──────────────────────────────────── */

.section-inner {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: clamp(var(--space-lg), 4vw, var(--space-2xl));
}

.bleed-ink {
  background: var(--color-ink-dark);
  color: var(--color-paper);
}

/* ─── HERO ────────────────────────────────────────────────────── */

.hero {
  padding-block: var(--space-xl) var(--space-2xl);
  background-image: repeating-linear-gradient(
    0deg,
    oklch(84% 0.007 252 / 0.4) 0px,
    oklch(84% 0.007 252 / 0.4) 1px,
    transparent 1px,
    transparent 3px
  );
}

.hero-inner {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: clamp(var(--space-lg), 4vw, var(--space-2xl));
}

.hero-eyebrow {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  animation: label-pulse 2.5s var(--ease-in-out) infinite;
  margin-bottom: var(--space-xl);
}

.hero-display {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  overflow-wrap: anywhere; /* gate 63 */
  min-width: 0;
  max-width: 16ch;
  margin-bottom: var(--space-2xl);
}

.hero-display em {
  font-style: italic;
  font-weight: 200;
  color: var(--color-accent);
}

.hero-body {
  max-width: 52ch;
  margin-bottom: var(--space-2xl);
}

.hero-body p {
  font-size: var(--text-md);
  line-height: 1.6;
  color: var(--color-ink-2);
}

.hero-body p + p { margin-top: var(--space-lg); }

.hero-stat-row {
  border-top: 1px solid var(--color-rule);
  padding-top: var(--space-xl);
}

.stat-list {
  display: flex;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; gap: var(--space-xs); }

.stat dt {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.stat dd {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 300;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

/* ─── TIERS SECTION ───────────────────────────────────────────── */

.tiers-section {
  padding-block: var(--space-4xl);
}

.tiers-section .section-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.section-display {
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 300;
  font-style: italic;
  line-height: 1.08;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
  min-width: 0;
  color: inherit;
}

.bleed-ink .section-display { color: var(--color-paper); }

.section-lede {
  font-size: var(--text-md);
  line-height: 1.6;
  color: oklch(70% 0.005 252);
  max-width: 56ch;
  margin-top: calc(-1 * var(--space-2xl));
}

/* Tier viz */
.tier-viz {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.tier-row {
  display: grid;
  grid-template-columns: 13rem 1fr 20rem;
  align-items: center;
  gap: var(--space-lg);
  padding-block: var(--space-lg);
  border-top: 1px solid oklch(28% 0.008 264);
}

.tier-meta {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.tier-badge {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: oklch(45% 0.006 252);
  min-width: 2.25rem;
}

.tier-badge--active {
  color: var(--color-accent);
  animation: label-pulse 2s var(--ease-in-out) infinite;
}

.tier-name {
  font-family: var(--font-code);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-paper);
}

.tier-score {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  color: oklch(40% 0.006 252);
  margin-left: auto;
}

.tier-bar-wrap {
  padding-inline: var(--space-sm);
}

.tier-bar {
  height: 3px;
  background: oklch(28% 0.008 264);
}

.tier-bar--full { width: 100%; background: var(--color-paper); }
.tier-bar--med  { width: 32%;  background: oklch(62% 0.005 252); }
.tier-bar--sm   { width: 13%;  background: oklch(46% 0.005 252); }
.tier-bar--xs   { width: 5%;   background: oklch(35% 0.005 252); }
.tier-bar--dot  { width: 1.5%; background: var(--color-accent); }

.tier-desc {
  font-size: var(--text-sm);
  color: oklch(55% 0.005 252);
  line-height: 1.4;
}

/* ─── SIGNALS SECTION ─────────────────────────────────────────── */

.signals-section {
  padding-block: var(--space-4xl);
  background: var(--color-paper-2);
}

.signals-section .section-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.signals-section .section-display {
  color: var(--color-ink);
  font-style: normal;
  font-weight: 200;
}

.signals-dl {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-rule);
}

.signal-entry {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: var(--space-lg);
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--color-rule);
  align-items: baseline;
}

.signal-label {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.signal-vals {
  font-size: var(--text-base);
  color: var(--color-ink-2);
  line-height: 1.7;
}

/* ─── INSTALL SECTION ─────────────────────────────────────────── */

.install-section {
  padding-block: var(--space-4xl);
}

.install-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--space-3xl);
  align-items: start;
}

.install-code-wrap { display: contents; }

.install-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.install-text .section-display-s {
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 300;
  font-style: italic;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--color-paper);
  overflow-wrap: anywhere;
  min-width: 0;
}

.install-text p {
  font-size: var(--text-base);
  color: oklch(66% 0.005 252);
  max-width: 38ch;
  line-height: 1.6;
}

.code-block {
  background: var(--color-ink);
  border: 1px solid oklch(28% 0.008 264);
  padding: var(--space-xl);
  overflow-x: auto;
  font-family: var(--font-code);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: oklch(85% 0.005 252);
  tab-size: 2;
  white-space: pre;
}

.code-comment { color: oklch(46% 0.005 252); }

/* ─── PRICING ─────────────────────────────────────────────────── */

.pricing-section {
  padding-block: var(--space-4xl);
}

.pricing-section .section-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.pricing-section .section-display-s {
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  min-width: 0;
}

.pricing-section .section-lede {
  color: var(--color-muted);
  font-size: var(--text-md);
  margin-top: calc(-1 * var(--space-2xl));
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1.08fr 1fr;
  gap: var(--space-md);
  align-items: start;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  padding: var(--space-2xl);
  border: 1px solid var(--color-rule);
  background: var(--color-paper);
}

.pricing-card--featured {
  background: var(--color-paper-2);
}

.pricing-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.pricing-tier {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.pricing-card--featured .pricing-tier { color: var(--color-accent); }

.pricing-price {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.pricing-placeholder { color: var(--color-ink-2); }

.pricing-confirm {
  font-size: var(--text-xs);
  font-family: var(--font-body);
  color: var(--color-muted);
  letter-spacing: 0;
  font-weight: 400;
}

.pricing-desc {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.5;
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}

.pricing-features li {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  padding-left: var(--space-md);
  position: relative;
  line-height: 1.5;
}

.pricing-features li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-rule);
  font-family: var(--font-code);
}

.pricing-cta {
  display: block;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-code);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-align: center;
  white-space: nowrap;
  transition:
    background var(--dur-xs) var(--ease-out),
    color var(--dur-xs) var(--ease-out),
    border-color var(--dur-xs) var(--ease-out);
}

.pricing-cta--outline {
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
  background: transparent;
}
.pricing-cta--outline:hover {
  background: var(--color-ink);
  color: var(--color-paper);
}
.pricing-cta--outline:active { opacity: 0.8; }

.pricing-cta--filled {
  background: var(--color-accent);
  color: var(--color-paper);
  border: 1px solid var(--color-accent);
}
.pricing-cta--filled:hover {
  background: var(--color-accent-2);
  border-color: var(--color-accent-2);
}
.pricing-cta--filled:active { opacity: 0.8; }
.pricing-cta:disabled { opacity: 0.4; pointer-events: none; }

/* ─── CTA SECTION ─────────────────────────────────────────────── */

.cta-section { padding-block: var(--space-4xl); }

.cta-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
  align-items: flex-start;
}

.cta-display {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 200;
  font-style: italic;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-paper);
  overflow-wrap: anywhere;
  min-width: 0;
  max-width: 20ch;
}

/* Oversized block button — Manifesto spec: below fold, solid accent */
.cta-button {
  display: inline-block;
  padding: var(--space-lg) var(--space-2xl);
  background: var(--color-accent);
  color: var(--color-paper);
  font-family: var(--font-code);
  font-size: var(--text-base);
  font-weight: 400;
  letter-spacing: 0.04em;
  white-space: nowrap;
  border: 1px solid var(--color-accent);
  transition:
    background var(--dur-xs) var(--ease-out),
    border-color var(--dur-xs) var(--ease-out);
}
.cta-button:hover { background: var(--color-accent-2); border-color: var(--color-accent-2); }
.cta-button:active { opacity: 0.8; }

/* ─── FOOTER — Ft5 Statement ──────────────────────────────────── */

.site-footer {
  background: var(--color-ink);
  color: var(--color-paper);
  padding-block: var(--space-2xl);
  border-top: 1px solid oklch(28% 0.008 264);
}

.footer-inner {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: clamp(var(--space-lg), 4vw, var(--space-2xl));
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.footer-statement {
  display: flex;
  align-items: baseline;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.footer-statement .wordmark { color: var(--color-paper); }

.footer-tagline {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: oklch(45% 0.005 252);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.footer-links a {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: oklch(52% 0.005 252);
  white-space: nowrap;
  transition: color var(--dur-xs) var(--ease-out);
}
.footer-links a:hover { color: var(--color-paper); }

.footer-credit {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: oklch(36% 0.005 252);
}

/* ─── RESPONSIVE ──────────────────────────────────────────────── */

/* Tablet ≥ 640px */
@media (min-width: 40rem) {
  .tier-row { grid-template-columns: 14rem 1fr 20rem; }
  .signal-entry { grid-template-columns: 12rem 1fr; }
}

/* Collapse multi-col at < 960px */
@media (max-width: 60rem) {
  .install-inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 30rem;
  }

  .tier-row {
    grid-template-columns: 1fr 1fr;
    row-gap: var(--space-sm);
  }
  .tier-bar-wrap { grid-column: 1 / -1; padding-inline: 0; }
  .tier-desc      { grid-column: 1 / -1; }
  .tier-score     { margin-left: 0; }

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

/* Mobile < 640px */
@media (max-width: 40rem) {
  .nav-links { gap: var(--space-md); }
  .nav-link:not(.nav-install) { display: none; }

  .hero { padding-block: var(--space-3xl) var(--space-2xl); }
  .stat-list { flex-direction: column; gap: var(--space-lg); }

  .signal-entry {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .tier-row { grid-template-columns: 1fr; }
  .tier-score { display: none; }

  .pricing-grid { max-width: 100%; }
  .footer-statement { flex-direction: column; gap: var(--space-sm); }
  .footer-links { gap: var(--space-md); }
}

/* ─── REDUCED MOTION ──────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-group > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-eyebrow,
  .tier-badge--active { animation: none; opacity: 1; }

  html { scroll-behavior: auto; }
}