/* mirrors ui/src/generated/ptah-tokens.css — source: ui/tokens/ptah.dtcg.json */

@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/inter-latin-wght-normal.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");
}

/* Dark hero (default) */
:root {
  color-scheme: dark light;
  --ptah-surface-stage: oklch(0.15 0.004 95);
  --ptah-surface-canvas: oklch(0.17 0.005 95);
  --ptah-surface-bg: oklch(0.205 0.005 95);
  --ptah-surface-raised: oklch(0.225 0.006 95);
  --ptah-surface-card: oklch(0.25 0.006 95);
  --ptah-surface-focus: oklch(0.275 0.006 95);
  --ptah-surface-hover: oklch(0.3 0.006 95);
  --ptah-ink-primary: oklch(0.93 0.006 95);
  --ptah-ink-secondary: oklch(0.74 0.01 95);
  --ptah-ink-tertiary: oklch(0.62 0.01 95);
  --ptah-ink-ghost: oklch(0.47 0.008 95);
  --ptah-accent: oklch(0.72 0.09 170);
  --ptah-accent-on: oklch(0.18 0.02 170);
  --ptah-accent-faint: oklch(0.72 0.09 170 / 0.05);
  --ptah-accent-whisper: oklch(0.72 0.09 170 / 0.08);
  --ptah-accent-ghost: oklch(0.72 0.09 170 / 0.15);
  --ptah-accent-ring: oklch(0.72 0.09 170 / 0.55);
  --ptah-state-advisory: oklch(0.78 0.11 85);
  --ptah-state-advisory-tint: oklch(0.78 0.11 85 / 0.12);
  --ptah-state-fail: oklch(0.66 0.14 25);
  --ptah-state-fail-tint: oklch(0.66 0.14 25 / 0.12);
  --ptah-border-hairline: oklch(0.93 0.006 95 / 0.08);
  --ptah-border-faint: oklch(0.93 0.006 95 / 0.04);
  --ptah-border-strong: oklch(0.93 0.006 95 / 0.14);
  --ptah-border-lift: oklch(0.93 0.006 95 / 0.06);
  --ptah-radius-control: 6px;
  --ptah-radius-tile: 10px;
  --ptah-radius-panel: 16px;
  --ptah-radius-pill: 9999px;
  --ptah-motion-fast: 150ms;
  --ptah-motion-base: 220ms;
  --ptah-motion-emphatic: 320ms;
  --ptah-motion-first-light: 240ms;
  --ptah-motion-stagger: 60ms;
  --ptah-ease-settle: cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: "Inter Variable", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --ptah-surface-stage: oklch(0.97 0.004 95);
    --ptah-surface-canvas: oklch(0.93 0.005 95);
    --ptah-surface-bg: oklch(0.88 0.005 95);
    --ptah-surface-raised: oklch(0.85 0.006 95);
    --ptah-surface-card: oklch(0.82 0.006 95);
    --ptah-surface-focus: oklch(0.79 0.006 95);
    --ptah-surface-hover: oklch(0.76 0.006 95);
    --ptah-ink-primary: oklch(0.2 0.006 95);
    --ptah-ink-secondary: oklch(0.42 0.01 95);
    --ptah-ink-tertiary: oklch(0.55 0.01 95);
    --ptah-ink-ghost: oklch(0.7 0.008 95);
    --ptah-border-hairline: oklch(0.2 0.006 95 / 0.08);
    --ptah-border-faint: oklch(0.2 0.006 95 / 0.04);
    --ptah-border-strong: oklch(0.2 0.006 95 / 0.14);
    --ptah-border-lift: oklch(0.2 0.006 95 / 0.06);
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background: var(--ptah-surface-canvas);
  color: var(--ptah-ink-primary);
}

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

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

a {
  color: inherit;
}

/* Type roles */
.ptah-type-display {
  font-family: var(--font-sans);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.15;
  font-weight: 650;
}

.ptah-type-headline {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  line-height: 1.2;
  font-weight: 600;
}

.ptah-type-title {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.35;
  font-weight: 600;
}

.ptah-type-body {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.5;
  font-weight: 450;
}

.ptah-type-caption {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  line-height: 1.4;
  font-weight: 450;
}

.ptah-type-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  line-height: 1.2;
  font-weight: 550;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ptah-type-mono-body {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

.ptah-type-mono-meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
}

.ptah-focus-ring:focus-visible {
  outline: 2px solid var(--ptah-accent-ring);
  outline-offset: 1px;
}

.ptah-selected {
  background: var(--ptah-accent-whisper);
  box-shadow: inset 0 0 0 1px var(--ptah-accent);
}

@keyframes ptah-first-light-in {
  from {
    opacity: 0;
    transform: translateY(2px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ptah-first-light-active {
  opacity: 0;
  animation: ptah-first-light-in var(--ptah-motion-first-light) var(--ptah-ease-settle) forwards;
}

@media (prefers-reduced-motion: reduce) {
  .ptah-first-light-active {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* Layout */
.page {
  max-width: 72rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 6rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ptah-ink-secondary);
  text-decoration: none;
}

.wordmark__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--ptah-accent);
  flex-shrink: 0;
}

.text-link {
  color: var(--ptah-ink-ghost);
  text-decoration: none;
  transition: color var(--ptah-motion-fast) var(--ptah-ease-settle);
}

.text-link:hover {
  color: var(--ptah-ink-secondary);
}

.section {
  margin-bottom: 6rem;
}

@media (min-width: 48rem) {
  .page {
    padding: 3rem 2.5rem 5rem;
  }

  .site-header {
    margin-bottom: 8rem;
  }

  .section {
    margin-bottom: 8rem;
  }
}

/* Hero */
.hero {
  max-width: 60ch;
}

.hero__eyebrow {
  color: var(--ptah-ink-tertiary);
  margin: 0 0 1rem;
}

.hero__title {
  margin: 0 0 1.5rem;
}

.hero__body {
  color: var(--ptah-ink-secondary);
  margin: 0 0 2rem;
}

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}

.hero__delay-1 {
  animation-delay: var(--ptah-motion-stagger);
}

.hero__delay-2 {
  animation-delay: calc(var(--ptah-motion-stagger) * 2);
}

.hero__delay-3 {
  animation-delay: calc(var(--ptah-motion-stagger) * 3);
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  border-radius: var(--ptah-radius-control);
  background: var(--ptah-accent);
  color: var(--ptah-accent-on);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border: none;
}

.hero__meta {
  color: var(--ptah-ink-tertiary);
  margin: 0;
}

/* Studio vignette */
.stage-frame {
  position: relative;
  padding: 1.5rem;
  border-radius: var(--ptah-radius-panel);
  border: 1px solid var(--ptah-border-strong);
  background: var(--ptah-surface-stage);
  box-shadow: 0 0 0 1px var(--ptah-border-lift);
}

.stage-frame__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--ptah-radius-control);
  background: var(--ptah-surface-raised);
  color: var(--ptah-ink-tertiary);
  border: 1px solid var(--ptah-border-faint);
}

.artifact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 40rem) {
  .artifact-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.artifact-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--ptah-radius-panel);
  border: 1px solid var(--ptah-border-hairline);
  background: var(--ptah-surface-card);
}

.artifact-card--selected {
  background: var(--ptah-accent-whisper);
  box-shadow: inset 0 0 0 1px var(--ptah-accent);
}

.artifact-card__delay-1 {
  animation-delay: calc(var(--ptah-motion-stagger) * 4);
}

.artifact-card__delay-2 {
  animation-delay: calc(var(--ptah-motion-stagger) * 5);
}

.artifact-card__delay-3 {
  animation-delay: calc(var(--ptah-motion-stagger) * 6);
}

.artifact-thumb {
  aspect-ratio: 16 / 10;
  border-radius: var(--ptah-radius-tile);
  border: 1px solid var(--ptah-border-faint);
  background: var(--ptah-surface-raised);
  position: relative;
  overflow: hidden;
}

.artifact-thumb--button::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 38%;
  height: 22%;
  transform: translate(-50%, -50%);
  border-radius: var(--ptah-radius-control);
  background: var(--ptah-accent);
  opacity: 0.85;
}

.artifact-thumb--button::after {
  content: "";
  position: absolute;
  inset: 18% 22%;
  border-radius: var(--ptah-radius-tile);
  border: 1px solid var(--ptah-border-hairline);
  background: var(--ptah-surface-focus);
}

.artifact-thumb--tokens {
  background: linear-gradient(
    180deg,
    var(--ptah-surface-focus) 0%,
    var(--ptah-surface-focus) 18%,
    var(--ptah-surface-raised) 18%,
    var(--ptah-surface-raised) 36%,
    var(--ptah-surface-bg) 36%,
    var(--ptah-surface-bg) 54%,
    var(--ptah-surface-stage) 54%
  );
}

.artifact-thumb--tokens::before {
  content: "";
  position: absolute;
  left: 12%;
  top: 22%;
  width: 28%;
  height: 8%;
  border-radius: var(--ptah-radius-pill);
  background: var(--ptah-accent-ghost);
}

.artifact-thumb--nav::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 28%;
  background: var(--ptah-surface-bg);
  border-right: 1px solid var(--ptah-border-faint);
}

.artifact-thumb--nav::after {
  content: "";
  position: absolute;
  left: 36%;
  top: 18%;
  right: 12%;
  height: 12%;
  border-radius: var(--ptah-radius-control);
  background: var(--ptah-surface-focus);
  box-shadow:
    0 0.85rem 0 0 var(--ptah-surface-hover),
    0 1.7rem 0 0 var(--ptah-surface-focus);
}

.artifact-card__name {
  margin: 0;
  color: var(--ptah-ink-primary);
}

.artifact-card__meta {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--ptah-ink-tertiary);
  margin: 0;
}

.gate-dot {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1;
}

.gate-dot--pass {
  color: var(--ptah-ink-secondary);
}

.gate-dot--advisory {
  color: var(--ptah-state-advisory);
}

.gate-dot--not-run {
  color: var(--ptah-ink-ghost);
}

.gate-dot--fail {
  color: var(--ptah-state-fail);
}

/* Loop */
.loop {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 48rem) {
  .loop {
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
  }
}

.loop__step {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 48rem) {
  .loop__step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -0.75rem;
    top: 0.125rem;
    color: var(--ptah-ink-ghost);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
  }

  .loop__step {
    position: relative;
  }
}

.loop__label {
  color: var(--ptah-ink-primary);
  margin: 0;
  font-weight: 500;
}

.loop__caption {
  color: var(--ptah-ink-secondary);
  margin: 0;
}

/* Principles */
.principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 48rem) {
  .principles {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.principle-card {
  padding: 1.5rem;
  border-radius: var(--ptah-radius-panel);
  border: 1px solid var(--ptah-border-hairline);
  background: var(--ptah-surface-card);
  transition: background var(--ptah-motion-fast) var(--ptah-ease-settle);
}

.principle-card:hover {
  background: var(--ptah-surface-focus);
}

.principle-card__title {
  margin: 0 0 0.75rem;
  color: var(--ptah-ink-primary);
}

.principle-card__body {
  margin: 0;
  color: var(--ptah-ink-secondary);
}

.principle-card__body code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 400;
}

/* Gate vocabulary */
.gate-vocab {
  padding: 1.5rem;
  border-radius: var(--ptah-radius-panel);
  border: 1px solid var(--ptah-border-faint);
  background: var(--ptah-surface-bg);
}

.gate-vocab__row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  margin-bottom: 0.75rem;
}

.gate-vocab__item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--ptah-ink-tertiary);
  margin: 0;
}

.gate-vocab__caption {
  color: var(--ptah-ink-secondary);
  margin: 0;
}

/* Access */
.access {
  max-width: 52ch;
}

.access__body {
  color: var(--ptah-ink-secondary);
  margin: 0 0 1rem;
}

/* Footer */
.site-footer {
  padding-top: 2rem;
  border-top: 1px solid var(--ptah-border-hairline);
}

.site-footer__meta {
  color: var(--ptah-ink-ghost);
  margin: 0;
}