/* Hallmark · genre: atmospheric · macrostructure: Narrative Workflow · theme: lumen (night foundry) · enrichment: E2 hand-built apparatus · nav: N5 floating pill · footer: Ft5 statement */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */

/* ============ TOKENS ============ */
:root {
  /* color — hex fallback first, oklch overrides where supported */
  --color-paper: #16131f;
  --color-paper: oklch(13% 0.014 265);
  --color-paper-2: #1d1926;
  --color-paper-2: oklch(17% 0.016 265);
  --color-paper-3: #26212f;
  --color-paper-3: oklch(21% 0.018 265);
  --color-ink: #f5f2f0;
  --color-ink: oklch(96% 0.006 262);
  --color-ink-2: #d9d6d6;
  --color-ink-2: oklch(86% 0.008 262);
  --color-muted: #a29e9d;
  --color-muted: oklch(66% 0.012 262);
  --color-accent: #e2a04a;
  --color-accent: oklch(76% 0.17 50);
  --color-accent-2: #d96a50;
  --color-accent-2: oklch(68% 0.16 18);
  --color-glow: rgba(236, 165, 90, 0.42);
  --color-glow: oklch(80% 0.16 50 / 0.42);
  --color-glow-2: rgba(236, 165, 90, 0.18);
  --color-glow-2: oklch(80% 0.16 50 / 0.18);
  --color-paper-emit: rgba(226, 160, 74, 0.04);
  --color-paper-emit: oklch(76% 0.17 50 / 0.04);
  --color-rule: rgba(245, 242, 240, 0.10);
  --color-rule: oklch(96% 0.006 262 / 0.10);
  --color-rule-2: rgba(245, 242, 240, 0.16);
  --color-rule-2: oklch(96% 0.006 262 / 0.16);
  --rule-blueprint: rgba(245, 242, 240, 0.04);
  --rule-blueprint: oklch(96% 0.006 262 / 0.04);
  --color-shadow-soft: rgba(0, 0, 0, 0.18);
  --color-shadow-soft: oklch(0% 0 0 / 0.18);
  --color-shadow-inner: rgba(0, 0, 0, 0.4);
  --color-shadow-inner: oklch(0% 0 0 / 0.4);
  --color-shadow-toast: rgba(0, 0, 0, 0.5);
  --color-shadow-toast: oklch(0% 0 0 / 0.5);
  --color-chamber-bg: rgba(29, 25, 38, 0.8);
  --color-chamber-bg: oklch(17% 0.016 265 / 0.8);
  --color-filament-tip: #f5e6c4;
  --color-filament-tip: oklch(96% 0.05 50);
  --color-filament-core: #e2a04a;
  --color-filament-core: oklch(80% 0.17 50);
  --color-filament-halo: rgba(226, 160, 74, 0.22);
  --color-filament-halo: oklch(80% 0.16 50 / 0.22);

  /* font */
  --font-display: "Instrument Serif", "Tiempos Headline", ui-serif, Georgia, serif;
  --font-body: "Geist", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* type */
  --text-display: clamp(2.75rem, 7vw + 1rem, 7.5rem);
  --text-h2: clamp(1.75rem, 3vw + 0.5rem, 3rem);
  --text-h3: clamp(1.25rem, 1.5vw + 0.5rem, 1.75rem);
  --text-body: clamp(1rem, 0.5vw + 0.85rem, 1.125rem);
  --tracking-micro: 0.1em;

  /* space */
  --space-xs: 0.5rem;
  --space-sm: 0.875rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;
  --page-gutter: clamp(1.25rem, 5vw, 4rem);
  --page-max: 72rem;

  /* motion */
  --dur-pulse: 4s;
  --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);

  /* misc */
  --rule-hair: 1px;
}

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

html {
  overflow-x: clip;
  scroll-padding-top: 5.5rem;
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.65;
  text-transform: lowercase;
  font-variant-numeric: tabular-nums;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
h1, h2, .section__title, .foot-stmt__line { overflow-wrap: anywhere; min-width: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-ink); }
strong { color: var(--color-ink); font-weight: 600; }
em { font-style: normal; color: var(--color-accent-2); }
kbd {
  font-family: var(--font-mono); font-size: 0.8em;
  color: var(--color-ink); background: var(--color-paper-2);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-bottom-width: 2px; border-radius: 4px; padding: 0.1em 0.4em;
}

::selection { background: var(--color-accent); color: var(--color-paper); }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: -100%; left: 1rem; z-index: 50;
  padding: 0.6rem 1rem; background: var(--color-paper-3);
  color: var(--color-ink); border-radius: 8px;
}
.skip-link:focus { top: 1rem; }

/* two-register type: labels only are uppercase */
.eyebrow, .prompt__label, .exit-tag, .copy-btn, .phase-menu__label,
.meter__label, .stat__label, .tool-note, .flow span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: var(--tracking-micro);
  text-transform: uppercase;
  color: var(--color-muted);
}

/* ============ SCROLL PROGRESS ============ */
.progress {
  position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 40;
  background: transparent;
}
.progress span {
  display: block; height: 100%; width: 100%;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
}

/* ============ NAV · N5 floating pill ============ */
.nav-pill {
  position: fixed; top: var(--space-md); left: 50%;
  transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: var(--space-md);
  padding: 0.5rem 0.75rem 0.5rem 1.25rem;
  background: rgba(22, 19, 31, 0.78);
  background: color-mix(in oklch, var(--color-paper) 78%, transparent);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(245, 242, 240, 0.06),
    0 8px 24px -12px var(--color-shadow-soft);
  z-index: 30;
  max-width: calc(100vw - 2rem);
}
.wordmark {
  font-family: var(--font-display); font-size: 1.1rem;
  color: var(--color-ink); letter-spacing: -0.01em; white-space: nowrap;
}
.nav-pill__links { display: flex; gap: var(--space-sm); list-style: none; }
.nav-pill__links a {
  font-size: 0.85rem; color: var(--color-muted); padding: 0.25rem 0.35rem;
}
.nav-pill__links a:hover { color: var(--color-ink); }
.cta-fill {
  font-size: 0.85rem; font-weight: 500;
  color: var(--color-paper); background: var(--color-accent);
  padding: 0.5rem 1rem; border-radius: 999px; white-space: nowrap;
  transform: translate(var(--mx, 0px), var(--my, 0px));
  transition: transform 120ms var(--ease-out-quart), filter 220ms var(--ease-soft);
}
.cta-fill:hover { color: var(--color-paper); filter: brightness(1.08); }
.cta-fill:active { transform: translate(var(--mx, 0px), var(--my, 0px)) scale(0.96); }

/* ============ PHASE MENU · top-right dropdown ============ */
.phase-menu {
  position: fixed; top: var(--space-md); right: var(--space-md);
  z-index: 35;
}
.phase-menu__trigger {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-muted);
  padding: 0.55rem 0.9rem;
  background: rgba(22, 19, 31, 0.78);
  background: color-mix(in oklch, var(--color-paper) 78%, transparent);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 999px;
  cursor: pointer;
  transition: color 220ms var(--ease-soft), border-color 220ms var(--ease-soft),
    transform 120ms var(--ease-out-quart);
}
.phase-menu__trigger:hover { color: var(--color-ink); border-color: var(--color-ink); }
.phase-menu__trigger:active { transform: scale(0.97); }
.phase-menu__trigger[aria-expanded="true"] { color: var(--color-ink); }
.phase-menu__caret {
  display: inline-block;
  transition: transform 220ms var(--ease-soft);
}
.phase-menu__trigger[aria-expanded="true"] .phase-menu__caret { transform: rotate(180deg); }

.phase-menu__panel {
  position: absolute; top: calc(100% + 0.6rem); right: 0;
  width: 19rem; max-width: calc(100vw - 2rem);
  max-height: min(60vh, 30rem);
  overflow-y: auto; overscroll-behavior: contain;
  padding: 0.4rem;
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 14px;
  background: rgba(22, 19, 31, 0.80);
  background: color-mix(in oklch, var(--color-paper-2) 80%, transparent);
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  box-shadow: 0 18px 48px -16px var(--color-shadow-toast);
  opacity: 0; transform: translateY(-8px); visibility: hidden;
  transition: opacity 220ms var(--ease-soft), transform 220ms var(--ease-soft),
    visibility 0s linear 220ms;
}
.phase-menu__panel.is-open {
  opacity: 1; transform: translateY(0); visibility: visible;
  transition: opacity 220ms var(--ease-soft), transform 220ms var(--ease-soft),
    visibility 0s;
}
.phase-menu__item {
  display: flex; align-items: baseline; gap: 0.8rem;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  color: var(--color-ink-2);
  transition: background 220ms var(--ease-soft), color 220ms var(--ease-soft);
}
.phase-menu__item + .phase-menu__item { border-top: var(--rule-hair) solid var(--color-rule); }
.phase-menu__item:hover { color: var(--color-ink); background: var(--color-paper-emit); }
.phase-menu__num {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--color-accent);
  min-width: 1.4rem; text-align: right;
}
.phase-menu__title { font-size: 0.92rem; }
.phase-menu__item.is-active {
  background: var(--color-accent); color: var(--color-paper);
  box-shadow: 0 0 0 4px var(--color-glow-2);
}
.phase-menu__item.is-active:hover { color: var(--color-paper); }
.phase-menu__item.is-active .phase-menu__num { color: var(--color-paper); }

/* ============ HERO ============ */
.hero {
  position: relative;
  --charge: 1;
  background:
    linear-gradient(var(--rule-blueprint) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, var(--rule-blueprint) 1px, transparent 1px) 0 0 / 48px 48px,
    radial-gradient(60% 50% at 78% 30%, var(--color-paper-emit) 0%, transparent 65%),
    var(--color-paper);
  overflow: clip;
  padding: calc(7rem + var(--space-2xl)) var(--page-gutter) var(--space-2xl);
}
.js .hero { --charge: 0; }
.hero__grid {
  max-width: var(--page-max); margin: 0 auto;
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--space-xl); align-items: center;
}
.hero__title {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--text-display); line-height: 0.95;
  letter-spacing: -0.032em; max-width: 15ch; color: var(--color-ink);
  margin: var(--space-md) 0 var(--space-lg);
}
.hero__title em {
  display: inline-block;
  color: var(--color-accent); position: relative; white-space: nowrap;
  font-size: 1.15em; line-height: 0.9;
  vertical-align: baseline;
}
@supports (background-clip: text) or (-webkit-background-clip: text) {
  .js .hero__title em {
    background: linear-gradient(110deg, var(--color-filament-core) 18%, var(--color-filament-tip) 48%, var(--color-filament-core) 82%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    /* ponytail: word-in (entrance) + text-shimmer (loop) must share one animation */
    animation: text-shimmer 7s var(--ease-soft) 1s infinite,
      word-in 620ms var(--ease-out-quart) 540ms forwards;
  }
}
.hero__title em::after {
  content: ""; position: absolute;
  left: 0.05em; right: 0.05em; bottom: 0.04em; height: 2px;
  background: var(--color-accent);
  transform-origin: left; transform: scaleX(0);
  animation: pivot-underline 320ms var(--ease-soft) 700ms forwards;
}
.hero__lede {
  color: var(--color-ink-2); max-width: 52ch;
  margin-bottom: var(--space-lg);
  overflow-wrap: anywhere; min-width: 0;
}
.hero__cta { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.btn-fill, .btn-ghost {
  font-size: 0.9rem; font-weight: 500; padding: 0.7rem 1.4rem;
  border-radius: 999px; display: inline-block;
  transform: translate(var(--mx, 0px), var(--my, 0px));
  transition: transform 120ms var(--ease-out-quart), filter 220ms var(--ease-soft);
}
.btn-fill { background: var(--color-accent); color: var(--color-paper); }
.btn-fill:hover { color: var(--color-paper); filter: brightness(1.08); }
.btn-ghost {
  border: var(--rule-hair) solid var(--color-rule-2); color: var(--color-ink-2);
}
.btn-ghost:hover { color: var(--color-ink); border-color: var(--color-ink); }
.btn-fill:active, .btn-ghost:active { transform: translate(var(--mx, 0px), var(--my, 0px)) scale(0.97); }

/* shiny sweep on hover (designali-style sheen) */
.btn-fill, .cta-fill { position: relative; overflow: hidden; }
.btn-fill::after, .cta-fill::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 40%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: translateX(-240%) skewX(-18deg);
  transition: transform 600ms var(--ease-soft);
  pointer-events: none;
}
.btn-fill:hover::after, .cta-fill:hover::after { transform: translateX(340%) skewX(-18deg); }

/* apparatus — filament chamber */
.apparatus { margin: 0; position: relative; margin-right: calc(-1 * var(--page-gutter)); transform: rotate(-6deg); }
.chamber {
  position: relative; width: clamp(160px, 20vw, 260px);
  aspect-ratio: 0.55; margin: 0 auto;
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 999px;
  background: var(--color-chamber-bg);
  overflow: hidden;
}
.chamber__wall {
  position: absolute; inset: 0; border-radius: 999px;
  box-shadow: inset 0 0 40px var(--color-shadow-inner);
}
.chamber__filament {
  position: absolute; top: 8%; bottom: 8%; left: 50%;
  width: 2px; margin-left: -1px;
  background: linear-gradient(to bottom,
    var(--color-filament-tip) 0%,
    var(--color-filament-core) 50%,
    var(--color-filament-tip) 100%);
  box-shadow:
    0 0 16px 4px var(--color-glow),
    0 0 48px 12px var(--color-filament-halo);
  animation: filament-pulse var(--dur-pulse) ease-in-out infinite;
  filter: brightness(calc(0.7 + var(--charge) * 0.6));
}
.chamber__electrode {
  position: absolute; left: 0; right: 0; top: var(--y);
  height: 1px; background: var(--color-rule-2);
}
.chamber__glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, var(--color-glow-2) 0%, transparent 70%);
  pointer-events: none;
  opacity: calc(0.3 + var(--charge) * 0.7);
}
.chamber__stencil {
  position: absolute; left: 50%; bottom: 12%;
  transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: var(--tracking-micro);
  color: var(--color-muted); opacity: 0.8;
}
.callouts { position: absolute; inset: 0; list-style: none; margin: 0; }
.callout {
  position: absolute; top: var(--y); left: 0; right: 0;
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-muted);
}
.callout span { background: var(--color-paper); padding: 0 0.5rem; border-radius: 3px; }
.callout::before {
  content: ""; position: absolute; top: 50%; height: 1px;
  background: var(--color-rule-2);
}
.callout[style*="left"] { text-align: right; padding-right: 0.6rem; }
.callout[style*="left"]::before { left: 100%; right: -3.5rem; }
.callout[style*="right"] { text-align: left; padding-left: 0.6rem; }
.callout[style*="right"]::before { right: 100%; left: -3.5rem; }

/* meter strip */
.meter {
  max-width: var(--page-max); margin: var(--space-2xl) auto 0;
  display: grid; grid-template-columns: auto 1fr auto; gap: 1.5rem;
  align-items: center;
  padding: 0.75rem 0;
  border-block: var(--rule-hair) solid var(--color-rule);
  font-family: var(--font-mono);
  opacity: calc(0.75 + var(--charge) * 0.25);
}
.meter__bars { display: flex; gap: 2px; align-items: end; height: 28px; }
.meter__bars span {
  flex: 1; min-width: 1px; border-radius: 0.5px;
  background: linear-gradient(to top, var(--color-accent), transparent);
  opacity: 0.7;
  transform-origin: bottom;
}

/* ============ STATS ============ */
.stats {
  max-width: var(--page-max); margin: 0 auto;
  padding: var(--space-2xl) var(--page-gutter);
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.stat {
  display: flex; flex-direction: column; gap: 0.25rem;
  padding-left: var(--space-md);
  border-left: var(--rule-hair) solid var(--color-rule-2);
}
.stat__num {
  font-family: var(--font-display); font-size: clamp(2.5rem, 4vw + 1rem, 4.5rem);
  color: var(--color-ink); line-height: 1; font-variant-numeric: tabular-nums;
}
.stat__label { font-size: 0.66rem; }

/* rolling digit ticker */
.tick { display: inline-block; height: 1em; line-height: 1; overflow: hidden; vertical-align: top; }
.tick + .tick { margin-left: 0.08em; }
.tick__col { display: flex; flex-direction: column; transform: translateY(calc(-1em * var(--t, 0))); }
.tick.is-run .tick__col { transition: transform 750ms var(--ease-out-quart); }
.tick__col b { display: block; height: 1em; line-height: 1; font-weight: 400; }

/* ============ SECTIONS ============ */
.section {
  max-width: var(--page-max); margin: 0 auto;
  padding: var(--space-3xl) var(--page-gutter);
}
.section__title {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--text-h2); line-height: 1.08; letter-spacing: -0.02em;
  color: var(--color-ink); max-width: 24ch;
  margin: var(--space-sm) 0 var(--space-lg);
}
.section__sub {
  font-family: var(--font-body); font-weight: 600; font-size: var(--text-h3);
  color: var(--color-ink); margin-bottom: var(--space-sm);
}
.section__lede { color: var(--color-muted); max-width: 60ch; margin-bottom: var(--space-lg); overflow-wrap: anywhere; min-width: 0; }
.section__body { max-width: 64ch; color: var(--color-ink-2); overflow-wrap: anywhere; min-width: 0; }
.section__body p + p { margin-top: var(--space-md); }

/* ============ TOOLS ============ */
.tooling {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--space-xl);
}
.tool-list { margin-top: var(--space-md); }
.tool-list li {
  padding: var(--space-sm) 0;
  border-bottom: var(--rule-hair) solid var(--color-rule);
  color: var(--color-ink-2);
  overflow-wrap: anywhere; min-width: 0;
}
.tool-list li:last-child { border-bottom: none; }
.tool-note { margin-bottom: var(--space-md); font-size: 0.66rem; }

/* cursor-follow spotlight on the tooling columns (--spot-x/y set by app.js) */
.tooling > div {
  position: relative; border-radius: 14px;
  transform: perspective(800px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 150ms ease-out;
}
.tooling > div::before {
  content: ""; position: absolute; inset: 0; border-radius: 14px; pointer-events: none;
  background: radial-gradient(240px circle at var(--spot-x, 50%) var(--spot-y, 0%), var(--color-glow-2) 0%, transparent 65%);
  opacity: 0; transition: opacity 300ms var(--ease-soft);
  z-index: 0;
}
.tooling > div > * { position: relative; z-index: 1; }
@media (hover: hover) {
  .tooling > div:hover::before { opacity: 1; }
}

.table-wrap { overflow-x: auto; margin-bottom: var(--space-md); }
.skill-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.skill-table th, .skill-table td {
  text-align: left; padding: 0.7rem 0.5rem; vertical-align: top;
  overflow-wrap: anywhere;
}
.skill-table thead th {
  font-family: var(--font-mono); font-size: 0.66rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-muted); border-bottom: var(--rule-hair) solid var(--color-rule-2);
}
.skill-table tbody td { border-bottom: var(--rule-hair) solid var(--color-rule); }
.skill-table tbody tr:last-child td { border-bottom: none; }
.skill-table td:last-child { color: var(--color-muted); font-family: var(--font-mono); font-size: 0.8rem; }

/* ============ PROOF ============ */
.proof-score { color: var(--color-accent); font-family: var(--font-mono); font-weight: 500; }

/* star rating — hollow base + clipped accent fill */
.stars {
  display: inline-block; position: relative; vertical-align: middle;
  margin-left: var(--space-sm);
  font-size: 0.85rem; line-height: 1; letter-spacing: 0.14em;
  color: var(--color-rule-2);
}
.stars__bg { display: block; }
.stars__fill {
  position: absolute; inset: 0; overflow: hidden; white-space: nowrap;
  color: var(--color-accent);
}

/* radar chart (built by app.js) */
.proof-chart { margin: var(--space-md) 0 0; }
.proof-chart:empty { display: none; }
.proof-chart svg { display: block; width: 100%; max-width: 19rem; margin: 0 auto; }
.proof-chart text {
  fill: var(--color-muted); font-family: var(--font-mono); font-size: 8px;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.proof-chart .chart-ring { fill: none; stroke: var(--color-rule); }
.proof-chart .chart-axis { stroke: var(--color-rule); }
.proof-chart .chart-fill { fill: var(--color-glow); stroke: var(--color-accent); stroke-width: 1.5; }
.proof-chart .chart-point { fill: var(--color-accent); }

/* logo cloud — populated from the benchmark table */
.logo-cloud {
  display: flex; flex-wrap: wrap; gap: 0.5rem 0.6rem;
  margin: var(--space-sm) 0 var(--space-md);
}
.logo-cloud:empty { display: none; }
.logo-cloud__item {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.04em;
  color: var(--color-muted);
  border: var(--rule-hair) solid var(--color-rule);
  padding: 0.35rem 0.75rem; border-radius: 999px;
  transition: color 220ms var(--ease-soft), border-color 220ms var(--ease-soft),
    background 220ms var(--ease-soft);
}
.logo-cloud__item:hover {
  color: var(--color-ink); border-color: var(--color-accent);
  background: var(--color-paper-emit);
}
.proof-wrap { margin-top: var(--space-md); }
.proof-label {
  font-family: var(--font-mono); font-size: 0.66rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-muted);
  margin: var(--space-lg) 0 var(--space-sm);
  padding-top: var(--space-md);
  border-top: var(--rule-hair) solid var(--color-rule);
}
.proof-table thead th { border-bottom: var(--rule-hair) solid var(--color-rule-2); }
.proof-table tbody td { border-bottom: var(--rule-hair) solid var(--color-rule); }
.proof-table tbody tr:last-child td { border-bottom: none; }
.proof-scorecard thead th:nth-child(n+2),
.proof-scorecard td:nth-child(n+2) { text-align: right; font-family: var(--font-mono); }
.proof-table .proof-weighted,
.proof-table td.proof-weighted,
.proof-table .proof-overall .proof-weighted { color: var(--color-accent); }
.proof-table .proof-overall th,
.proof-table .proof-overall td {
  border-top: var(--rule-hair) solid var(--color-rule-2);
  color: var(--color-ink); font-weight: 600;
}
.proof-table .proof-overall .proof-weighted { font-weight: 500; }
.proof-bench td:nth-child(2) { color: var(--color-muted); }
.proof-bench a { color: var(--color-ink); }
.proof-bench a:hover { color: var(--color-accent); }
.proof-bench .proof-source { color: var(--color-muted); font-size: 0.75rem; }
.proof-bench .proof-source:hover { color: var(--color-accent); }

/* ============ PROMPT CARDS ============ */
.prompt {
  position: relative;
  background: var(--color-paper-2);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: 10px;
  margin: var(--space-md) 0;
  overflow: hidden;
}
.prompt::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(120% 80% at 20% 0%, var(--color-paper-emit) 0%, transparent 60%);
}
.prompt__head {
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-sm);
  padding: 0.6rem 0.9rem;
  border-bottom: var(--rule-hair) solid var(--color-rule);
  background: rgba(22, 19, 31, 0.60);
  background: color-mix(in oklch, var(--color-paper) 60%, transparent);
}
/* ponytail: tree blocks — first line (the folder) reads amber */
.prompt--tree pre::first-line { color: var(--color-accent); font-weight: 500; }
.prompt pre {
  margin: 0; padding: 1rem 1.1rem;
  font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.7;
  color: var(--color-ink-2); overflow-x: auto;
  text-transform: none; white-space: pre;
}
.prompt code { font-family: inherit; text-transform: none; }

.copy-btn {
  font-family: var(--font-mono); font-size: 0.66rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-muted); background: transparent;
  border: var(--rule-hair) solid var(--color-rule-2); border-radius: 999px;
  padding: 0.45rem 1rem; min-height: 2.5rem;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 220ms var(--ease-soft);
}
.copy-btn:hover { color: var(--color-ink); border-color: var(--color-ink); }
.copy-btn:active { transform: translateY(1px); }
.copy-btn.is-copied {
  color: var(--color-paper); background: var(--color-accent); border-color: var(--color-accent);
}
.copy-btn:disabled { opacity: 0.5; cursor: default; }
.copy-btn:disabled:hover { color: var(--color-muted); border-color: var(--color-rule-2); }

.prompt--install pre code { font-size: 0.85rem; }

/* ============ JOURNEY / PHASES ============ */
.section--journey { position: relative; }
.journey__ghost {
  position: absolute;
  top: -1.5rem; right: 0;
  font-family: var(--font-display);
  font-size: clamp(14rem, 30vw, 24rem);
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.06;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.section--journey > *:not(.journey__ghost) { position: relative; z-index: 1; }
.flow {
  display: block;
  overflow: hidden;
  font-family: var(--font-mono);
  padding: var(--space-md) 0;
  border-block: var(--rule-hair) solid var(--color-rule);
  margin-bottom: var(--space-2xl);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.flow span { font-size: 0.7rem; white-space: nowrap; }
.flow i { font-style: normal; color: var(--color-accent); }
.flow__track {
  display: flex; width: max-content;
  animation: flow-marquee 32s linear infinite;
}
.flow:hover .flow__track { animation-play-state: paused; }
.flow__set { display: flex; align-items: center; gap: var(--space-sm); padding-right: var(--space-sm); flex-shrink: 0; }
@keyframes flow-marquee {
  to { transform: translateX(-50%); }
}

/* phase progress stepper (active synced by app.js) */
.step-progress { display: flex; align-items: center; margin-bottom: var(--space-lg); }
.step-progress__step {
  position: relative;
  display: grid; place-items: center;
  width: 2.25rem; height: 2.25rem;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--color-muted);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 50%;
  transition: color 220ms var(--ease-soft), background 220ms var(--ease-soft),
    border-color 220ms var(--ease-soft);
}
.step-progress__step + .step-progress__step { margin-left: var(--space-lg); }
.step-progress__step + .step-progress__step::before {
  content: ""; position: absolute; top: 50%; right: 100%;
  width: var(--space-lg); height: 1px; background: var(--color-rule);
}
.step-progress__step:hover { color: var(--color-ink); border-color: var(--color-ink); }
.step-progress__step.is-active {
  background: var(--color-accent); color: var(--color-paper);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-glow-2);
}

.phase {
  display: grid; grid-template-columns: 6rem minmax(0, 1fr);
  gap: var(--space-md);
  padding: var(--space-xl) 0;
  border-top: var(--rule-hair) solid var(--color-rule-2);
  content-visibility: auto;
  contain-intrinsic-size: auto 520px;
}
.phase__num {
  font-family: var(--font-display); font-size: clamp(3.5rem, 6vw, 6rem);
  color: var(--color-accent); line-height: 0.85;
  opacity: 0.9;
}
.phase:nth-of-type(odd) .phase__num { transform: translateY(0.5rem); }
.phase:nth-of-type(even) .phase__num { transform: translateY(-0.5rem); }
.phase__title {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--text-h3); color: var(--color-ink);
  letter-spacing: -0.01em;
  margin: var(--space-xs) 0 var(--space-sm);
  overflow-wrap: anywhere; min-width: 0;
}
.phase__meta {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.04em; color: var(--color-muted);
  margin-bottom: var(--space-md);
}
.phase__meta strong { color: var(--color-muted); font-weight: 500; }
.phase__text { color: var(--color-ink-2); max-width: 64ch; margin-bottom: var(--space-md); }
.phase__steps { margin: var(--space-sm) 0 var(--space-md) 1.2rem; }
.phase__steps li {
  list-style: decimal; color: var(--color-ink-2);
  padding-left: 0.35rem; margin-bottom: 0.4rem;
}
.phase__exit {
  display: flex; gap: var(--space-sm); align-items: baseline;
  color: var(--color-ink-2); font-size: 0.92rem;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-paper-2);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: 10px;
  margin: var(--space-md) 0;
}
.phase__exit code {
  font-family: var(--font-mono); font-size: 0.8em;
  color: var(--color-accent); text-transform: none;
}
.exit-tag {
  white-space: nowrap; flex-shrink: 0;
  background: var(--color-accent); color: var(--color-paper);
  padding: 0.18rem 0.7rem; border-radius: 999px;
}

/* ============ WHY ============ */
#why {
  max-width: none;
  background: var(--color-accent);
  color: var(--color-paper);
  padding-inline: var(--page-gutter);
}
#why .section__title { color: var(--color-paper); }
#why .fix-list { max-width: none; margin-left: 0; margin-right: 0; }
#why .fix-list li { border-color: rgba(22, 19, 31, 0.30); border-color: color-mix(in oklch, var(--color-paper) 30%, transparent); }
#why .fix-list .section__sub { color: var(--color-paper); }
#why .fix-list p, #why .section__body { color: #4a4540; color: color-mix(in oklch, var(--color-paper) 75%, var(--color-ink)); }
#why .fix-list p { max-width: 55ch; }
#why .section__body { max-width: 72rem; }

.fix-list {
  display: block;
  margin: var(--space-lg) 0;
  max-width: 64ch;
}
.fix-list li {
  padding: var(--space-lg) 0;
  border-bottom: var(--rule-hair) solid var(--color-rule);
  content-visibility: auto;
  contain-intrinsic-size: auto 200px;
}
.fix-list li:first-child { border-top: var(--rule-hair) solid var(--color-rule); }
.fix-list .section__sub { font-size: 1.05rem; }
.fix-list p { color: var(--color-muted); font-size: 0.95rem; margin-top: var(--space-xs); }

/* ============ FOOTER · Ft5 statement ============ */
.foot-stmt {
  padding: var(--space-3xl) var(--page-gutter) var(--space-xl);
  max-width: var(--page-max); margin: 0 auto;
  display: grid; gap: var(--space-lg);
}
.foot-stmt__line {
  font-family: var(--font-display); font-size: clamp(1.75rem, 5vw, 3.25rem);
  line-height: 1.02; letter-spacing: -0.02em; color: var(--color-ink);
  max-width: 28ch; text-transform: none;
}
.foot-stmt__meta {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: var(--space-md); flex-wrap: wrap;
  padding-block-start: var(--space-sm);
  border-top: var(--rule-hair) solid var(--color-rule);
}
.foot-stmt__links { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.muted { color: var(--color-muted); font-size: 0.85rem; }
.muted:hover { color: var(--color-ink); }

/* ============ TOAST ============ */
.toast {
  position: fixed; left: 50%; bottom: var(--space-lg);
  transform: translateX(-50%) translateY(calc(100% + var(--space-lg) + 0.5rem));
  background: var(--color-accent); color: var(--color-paper);
  border: var(--rule-hair) solid var(--color-accent);
  border-radius: 999px; padding: 0.6rem 1.2rem;
  font-family: var(--font-mono); font-size: 0.75rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  box-shadow: 0 12px 32px -12px var(--color-shadow-toast);
  z-index: 60;
  pointer-events: none;
  transition: transform 320ms var(--ease-soft);
}
.toast.is-show {
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* ============ REVEAL ============ */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 600ms var(--ease-soft), transform 600ms var(--ease-soft); }
.js .phase.reveal { transform: translateX(-20px); }
.reveal.is-in { opacity: 1; transform: translateY(0); }
.phase.reveal.is-in { transform: translateX(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .apparatus { display: none; }
  .tooling { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; gap: var(--space-md); }
  .stat { padding-left: 0; border-left: none; border-top: var(--rule-hair) solid var(--color-rule-2); padding-top: var(--space-sm); }
  .nav-pill { left: var(--space-md); transform: none; flex-wrap: wrap; justify-content: flex-start; max-width: calc(100vw - 7.5rem); }
  .nav-pill__links { flex-wrap: wrap; gap: var(--space-xs); }
  .nav-pill__links a { padding: 0.45rem 0.6rem; }
  /* ponytail: mobile keeps only the wordmark + the last link ("resources"); hide the section links */
  .nav-pill__links li:not(:last-child) { display: none; }
  /* ponytail: CTA hidden on mobile — GitHub link lives in the footer */
  .cta-fill { display: none; }
  /* ponytail: stepper hidden on mobile — the phase-menu dropdown already jumps */
  .step-progress { display: none; }
  .phase-menu__trigger { min-height: 2.75rem; }
  .phase-menu__item { min-height: 2.75rem; }
  .js .nav-pill { animation-name: pill-in-left; }
}

@keyframes pill-in-left {
  from { opacity: 0; transform: translateY(-14px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
  .phase-menu__trigger { padding: 0.5rem 0.7rem; font-size: 0.66rem; }
  .phase-menu__panel { width: min(19rem, calc(100vw - 2rem)); }
  .foot-stmt__links a { padding: 0.5rem 0.3rem; }
}

@media (max-width: 480px) {
  .phase { grid-template-columns: 1fr; gap: var(--space-xs); }
  .phase__num { font-size: 1.6rem; }
  .hero { padding-top: 8rem; }
  .hero__cta { flex-direction: column; align-items: flex-start; }
  .meter { grid-template-columns: 1fr; gap: 0.5rem; }
  .meter__label--right { text-align: right; }
  .flow { gap: var(--space-xs); }
  .foot-stmt__meta { flex-direction: column; gap: 0.35rem; }
}

/* ============ MOTION ============ */
@keyframes word-in {
  from { opacity: 0; transform: translateY(1.1em); }
  to { opacity: 1; transform: translateY(0); }
}
.hero__word {
  display: inline-block;
}
.js .hero__word {
  opacity: 0;
  animation: word-in 620ms var(--ease-out-quart) forwards;
}
.js .hero__word.is-in {
  opacity: 1;
  animation: none;
}
.hero__word:nth-child(1) { animation-delay: 60ms; }
.hero__word:nth-child(2) { animation-delay: 180ms; }
.hero__word:nth-child(3) { animation-delay: 300ms; }
.hero__word:nth-child(4) { animation-delay: 420ms; }
.hero__word:nth-child(5) { animation-delay: 540ms; }
.hero__word:nth-child(6) { animation-delay: 660ms; }

@keyframes filament-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.86; }
}
@keyframes pivot-underline {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}
@keyframes text-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes ghost-in {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 0.06; transform: translateY(0); }
}
.js .journey__ghost { animation: ghost-in 600ms var(--ease-out-quart) 300ms backwards; }

@keyframes progress-flare {
  0% { transform: scaleX(1); }
  40% { transform: scaleX(1) scaleY(2.2); }
  100% { transform: scaleX(1); }
}
.progress span.is-complete { animation: progress-flare 500ms var(--ease-out-quart); }

@keyframes pill-in {
  from { opacity: 0; transform: translateX(-50%) translateY(-14px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.js .nav-pill { animation: pill-in 500ms var(--ease-out-quart) 100ms backwards; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .phase.reveal { opacity: 1; transform: none; }
  .js .hero__word { opacity: 1; transform: none; animation: none; }
  .js .hero__title em { animation: none; }
  .flow__track { animation: none; }
  .js .journey__ghost { animation: none; opacity: 0.06; }
  .js .nav-pill { animation: none; }
  .toast { transition: none; }
  .phase-menu__panel { transition: none; }
}

/* ============ RESOURCES ============ */
.res-hero {
  max-width: var(--page-max); margin: 0 auto;
  padding: calc(7rem + var(--space-2xl)) var(--page-gutter) var(--space-sm);
}
.res-hero__kicker {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-accent); margin-bottom: 0;
}

.res-list {
  max-width: var(--page-max); margin: 0 auto;
  padding: var(--space-lg) var(--page-gutter) var(--space-3xl);
}
.res-list__ol:not(:empty) { border-top: var(--rule-hair) solid var(--color-rule); }
.res-list__ol > li { border-bottom: var(--rule-hair) solid var(--color-rule); }
.res-row__anchor {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: var(--space-md); align-items: start;
  padding: var(--space-lg) var(--space-sm);
  border-radius: 12px;
  transition: background 220ms var(--ease-soft);
}
.res-row--link:hover .res-row__anchor { background: var(--color-paper-3); }
.res-row__icon {
  width: 1.6rem; height: 1.6rem;
  fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round;
  color: var(--color-accent);
  margin-top: 0.35rem;
  transition: color 220ms var(--ease-soft);
}
.res-row__title {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--text-h3); line-height: 1.1;
  letter-spacing: -0.01em; color: var(--color-ink);
  transition: color 220ms var(--ease-soft);
}
.res-row--link:hover .res-row__title { color: var(--color-accent); }
.res-row__num {
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500;
  color: var(--color-accent); letter-spacing: var(--tracking-micro);
  display: inline-block; margin-right: var(--space-sm);
  vertical-align: 0.15em;
}
.res-row__sub {
  color: var(--color-muted); margin-top: var(--space-xs);
  max-width: 60ch; overflow-wrap: anywhere; min-width: 0;
}
.res-row__cta {
  width: 2.25rem; height: 2.25rem; align-self: center;
  display: grid; place-items: center;
  border-radius: 50%;
  border: var(--rule-hair) solid var(--color-rule-2);
  color: var(--color-muted);
  transition: background 220ms var(--ease-soft), color 220ms var(--ease-soft),
    border-color 220ms var(--ease-soft), transform 220ms var(--ease-soft);
}
.res-row__cta svg {
  width: 1.05rem; height: 1.05rem;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.res-row--link:hover .res-row__cta {
  background: var(--color-accent); border-color: var(--color-accent);
  color: var(--color-paper); transform: translate(1px, -1px);
}

/* resources search bar */
.res-search {
  display: grid; grid-template-columns: auto 1fr auto; gap: var(--space-sm);
  align-items: center; margin-bottom: var(--space-lg);
}
.res-search__label {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: var(--tracking-micro); text-transform: uppercase;
  color: var(--color-muted);
}
.res-search__input {
  font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--color-ink); width: 100%;
  background: var(--color-paper-2);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 999px;
  padding: 0.6rem 1rem; min-height: 2.75rem;
  outline: none;
}
.res-search__input::placeholder { color: var(--color-muted); }
.res-search__input:focus { border-color: var(--color-accent); }
.res-search__count {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--color-muted); white-space: nowrap;
}
.res-row.is-filtered { display: none; }
.res-none {
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--color-muted);
  padding: var(--space-xl) 0; text-align: center;
}

/* resources hover preview (fine pointers only) */
.res-preview {
  position: fixed; top: 0; left: 0; z-index: 55;
  width: min(18rem, calc(100vw - 2rem));
  padding: var(--space-md);
  background: rgba(22, 19, 31, 0.82);
  background: color-mix(in oklch, var(--color-paper-2) 82%, transparent);
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 12px;
  box-shadow: 0 18px 48px -16px var(--color-shadow-toast);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity 180ms var(--ease-soft), transform 180ms var(--ease-soft),
    visibility 0s linear 180ms;
  pointer-events: none;
}
.res-preview.is-show {
  opacity: 1; visibility: visible; transform: translateY(0);
  transition: opacity 180ms var(--ease-soft), transform 180ms var(--ease-soft), visibility 0s;
}
.res-preview__icon { width: 1.4rem; height: 1.4rem; margin-bottom: var(--space-sm); }
.res-preview__title {
  font-family: var(--font-display); font-size: 1.1rem; line-height: 1.15;
  color: var(--color-ink); margin-bottom: var(--space-xs);
}
.res-preview__sub { color: var(--color-muted); font-size: 0.85rem; margin-bottom: var(--space-sm); }
.res-preview__src {
  font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.03em; color: var(--color-accent);
  overflow-wrap: anywhere;
}

.res-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

@media (max-width: 480px) {
  .res-hero { padding-top: 8rem; }
  .res-search { grid-template-columns: 1fr; }
  .res-search__count { display: none; }
  .res-row__anchor { grid-template-columns: auto 1fr; gap: var(--space-sm); padding: var(--space-md) var(--space-xs); }
  .res-row__cta { display: none; }
}

/* ============ FORCED COLORS (Windows high contrast) ============ */
@media (forced-colors: active) {
  .js .reveal, .js .hero__word, .js .flow > * { opacity: 1; transform: none; animation: none; }
  .js .journey__ghost { opacity: 0.06; animation: none; }
  .js .nav-pill { animation: none; }
  .toast { background: Canvas; color: CanvasText; border-color: ButtonText; }
  .phase-menu__panel { background: Canvas; color: CanvasText; border-color: ButtonText; }
  .phase-menu__item.is-active { background: Highlight; color: HighlightText; }
  .phase-menu__item.is-active .phase-menu__num { color: HighlightText; }
  #why { background: Canvas; color: CanvasText; }
  #why .section__title, #why .fix-list .section__sub, #why .fix-list p,
  #why .section__body { color: CanvasText; }
  #why .fix-list li { border-color: ButtonText; }
  .chamber__filament { forced-color-adjust: none; }
  .chamber__glow, .chamber__stencil, .progress span { forced-color-adjust: none; }
  .res-preview { background: Canvas; color: CanvasText; border-color: ButtonText; }
  .res-preview__title, .res-preview__sub, .res-preview__src { color: CanvasText; }
  .scroll-top { background: Canvas; color: CanvasText; border-color: ButtonText; }
  .prompt--install, .prompt--tree { background: var(--color-paper-2); border: var(--rule-hair) solid var(--color-rule); animation: none; }
  body::after { content: none; }
}

/* ============ FILM GRAIN · static SVG noise overlay ============ */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 45; pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============ SCROLL-TO-TOP PILL ============ */
.scroll-top {
  position: fixed; right: var(--space-md); bottom: var(--space-lg); z-index: 45;
  width: 2.75rem; height: 2.75rem; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 1rem; line-height: 1;
  color: var(--color-ink-2); background: var(--color-paper);
  border: var(--rule-hair) solid var(--color-rule-2); border-radius: 50%;
  box-shadow: inset 0 1px 0 rgba(245, 242, 240, 0.06), 0 8px 24px -12px var(--color-shadow-soft);
  cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 220ms var(--ease-soft), transform 220ms var(--ease-soft), visibility 0s linear 220ms;
}
.scroll-top:hover { color: var(--color-ink); border-color: var(--color-ink); }
.scroll-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); transition: opacity 220ms var(--ease-soft), transform 220ms var(--ease-soft), visibility 0s; }

/* ============ ANIMATED GRADIENT BORDER · command + tree blocks ============ */
.prompt--install, .prompt--tree {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--color-paper-2), var(--color-paper-2)) padding-box,
    linear-gradient(110deg, var(--color-rule) 0%, var(--color-accent) 28%, var(--color-rule) 55%, var(--color-accent) 78%, var(--color-rule) 100%) border-box;
  background-size: 100% 100%, 300% 100%;
  animation: border-flow 7s linear infinite;
}
@keyframes border-flow {
  to { background-position: 0 0, 200% 0; }
}

/* ============ SPLIT-TEXT REVEAL · section + phase titles ============ */
.split { display: inline-block; overflow: hidden; vertical-align: bottom; padding-bottom: 0.12em; margin-bottom: -0.12em; }
.split__word { display: inline-block; transform: translateY(115%); }
.split-ready .split__word { transition: transform 650ms var(--ease-out-quart) var(--d, 0ms); }
.split-ready.is-split-in .split__word { transform: translateY(0); }