/* tastemaker | macrostructure Feature Stack (editorial variant) | mood technical, discerning | palette from .tastemaker/style-lock.md, contrast-verified | critique ShowTell 5 | Phil 5 | Hier 5 | Spec 5 | Restr 5 | Var 4 */
:root {
  --paper: #f4f1eb;
  --cream: #fffaf1;
  --dark: #0c1414;
  --dark-soft: #14201f;
  --teal: #008286;
  --teal-bright: #55d8cc;
  --orchid: #be85ce;
  --orange: #e66826;
  --ink: #171514;
  --ink-soft: #4d4842;
  --muted: #746b61;
  --muted-dark: #9aa8a8; /* muted's dark-surface counterpart: #746b61 on #0c1414 is 3.57:1, below the 4.5 text floor; this clears at 7.59:1 */
  --on-dark: #e5f6f6;
  --white: #ffffff;
  --line: rgba(23, 21, 20, .13);
  --line-dark: rgba(229, 246, 246, .14);

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --shadow-soft: 0 20px 60px rgba(23, 21, 20, .1);
  --shadow-hard: 0 30px 90px rgba(12, 20, 20, .3);

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease-out: cubic-bezier(.23, 1, .32, 1);

  /* spacing scale, 8px base */
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --space-32: 128px;
}

* { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; background: none; border: none; }
img, svg { display: block; max-width: 100%; }
code { font-family: var(--font-mono); }
h1, h2, h3 { font-family: var(--font-display); margin: 0; text-wrap: balance; }
p { margin: 0; }

.shell {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  background: var(--cream);
  color: var(--ink);
  font-weight: 800;
}
.skip-link:focus { top: 16px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
  padding: 14px 0;
}
.nav-island {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 50px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(244, 241, 235, .86);
  backdrop-filter: blur(16px);
}
.nav-brand { padding-inline: 12px 16px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 900 1rem/1 var(--font-display);
}
.brand img { width: 30px; height: 30px; }
.nav-links {
  display: none;
  gap: 20px;
  padding-inline: 20px;
}
@media (min-width: 860px) { .nav-links { display: flex; } }
.nav-links a, .footer-links a {
  color: var(--ink-soft);
  font-size: .86rem;
  white-space: nowrap;
  transition: color 160ms var(--ease-out);
}
.nav-links a:hover, .nav-links a:focus-visible,
.footer-links a:hover, .footer-links a:focus-visible { color: var(--teal); }
.nav-actions { padding-inline: 6px; }
.nav-actions a:not(.install-link) {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--line);
}
.nav-actions img { width: 16px; }
.install-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--dark);
  color: var(--white);
  font-weight: 800;
  font-size: .88rem;
}

/* ---------- hero ---------- */
.hero { position: relative; padding: var(--space-16) 0 var(--space-24); isolation: isolate; }
.hero-ambient {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.hero-ambient canvas { width: 100%; height: 100%; display: block; }
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}
.micro-label {
  display: inline-block;
  width: max-content;
  max-width: 100%;
  margin: 0 0 18px;
  padding: 6px 12px;
  border: 1px solid rgba(230, 104, 38, .3);
  border-radius: 999px;
  background: var(--cream);
  color: #a94314;
  font: 800 .68rem/1.2 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: min(17ch, 100%);
  font: 800 clamp(2.1rem, 3.6vw, 3.2rem)/1.14 var(--font-display);
  letter-spacing: -.01em;
  color: var(--ink);
}
.hero-lede {
  max-width: min(42ch, 100%);
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.15vw, 1.12rem);
}
.install-row {
  width: min(520px, 100%);
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 8px 8px 18px;
  border-radius: 999px;
  background: var(--dark);
  color: var(--white);
  box-shadow: var(--shadow-hard);
}
.install-row code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  font-size: .8rem;
  scrollbar-width: none;
}
.install-row code::-webkit-scrollbar { display: none; }
.copy-button {
  flex: none;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  color: var(--white);
  cursor: pointer;
  font: 800 .68rem var(--font-mono);
  transition: background-color 160ms var(--ease-out), transform 160ms var(--ease-out);
}
.copy-button:hover { background: rgba(255, 255, 255, .16); }
.copy-button img { width: 13px; filter: invert(1); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
  transition: transform 160ms var(--ease-out);
}
.button-dark { background: var(--dark); color: var(--white); gap: 8px; }
.button-paper { background: var(--cream); border: 1px solid var(--line); color: var(--ink); }
.button:active, .copy-button:active, .install-link:active { transform: scale(.97); }
.button-icon { width: 13px; filter: invert(1); }

.hero-visual { margin: 0; }
.compare-reveal {
  --wipe: 50%;
  position: relative;
  aspect-ratio: 1200 / 660;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--dark);
  box-shadow: var(--shadow-hard);
}
.compare-panel { position: absolute; inset: 0; }
.compare-panel img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.compare-before { clip-path: inset(0 calc(100% - var(--wipe)) 0 0); will-change: clip-path; }
.compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--wipe);
  z-index: 2;
  width: 2px;
  background: var(--white);
  box-shadow: 0 0 0 1px rgba(23, 21, 20, .25);
  transform: translateX(-1px);
  will-change: left;
}
.compare-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transform: translate(-50%, -50%);
}
.compare-handle::before, .compare-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transform: translateY(-50%);
}
.compare-handle::before { left: 8px; border-right: 5px solid var(--ink); }
.compare-handle::after { right: 8px; border-left: 5px solid var(--ink); }
.compare-tag {
  position: absolute;
  bottom: 16px;
  z-index: 1;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(12, 20, 20, .78);
  backdrop-filter: blur(6px);
  color: var(--on-dark);
  font: 700 .68rem var(--font-mono);
  letter-spacing: .02em;
}
.compare-tag-before { left: 16px; }
.compare-tag-after { right: 16px; }
.hero-visual figcaption {
  margin-top: 14px;
  color: var(--muted);
  font: 500 .82rem/1.4 var(--font-mono);
}

/* ---------- proof wall strip ---------- */
.proof-wall { padding: var(--space-8) 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-wall-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-8);
}
.proof-wall p {
  font: 800 .82rem var(--font-mono);
  color: var(--ink-soft);
  margin-right: auto;
}
.proof-wall-links { display: flex; flex-wrap: wrap; gap: var(--space-6); }
.proof-wall-links a { font: 600 .82rem var(--font-mono); color: var(--teal); }
.proof-wall-links a:hover { color: var(--ink); }

/* ---------- shared section rhythm ---------- */
.problem-section, .how-section, .proof-section, .mode-section, .memory-section, .install-section {
  padding: var(--space-24) 0;
}
.how-head, .proof-head, .mode-head, .memory-copy, .problem-layout > p.micro-label {
  margin-bottom: var(--space-8);
}
.how-head h2, .proof-head h2, .mode-head h2, .memory-copy h2, .problem-section h2 {
  max-width: min(22ch, 100%);
  font: 800 clamp(1.7rem, 3vw, 2.5rem)/1.14 var(--font-display);
}
.how-head p, .proof-head p, .mode-head p, .memory-copy p {
  max-width: min(56ch, 100%);
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 1rem;
}
.proof-head p a { color: var(--teal); }

/* ---------- problem ---------- */
.problem-layout { max-width: 900px; }
.problem-lede {
  max-width: min(62ch, 100%);
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.4vw, 1.14rem);
}
/* ---------- scan console (problem + how-it-works) ---------- */
.scan-console {
  margin-top: var(--space-12);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--dark);
  box-shadow: var(--shadow-soft);
}
.scan-console-bar {
  padding: 12px 20px;
  border-bottom: 1px solid var(--line-dark);
  color: var(--muted-dark);
  font: 600 .8rem var(--font-mono);
}
.scan-console-body { margin: 0; padding: 6px 0; list-style: none; }
.scan-console-body li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 20px;
  border-top: 1px solid var(--line-dark);
}
.scan-console-body li:first-child { border-top: none; }
.scan-mark {
  flex: none;
  width: 42px;
  font: 800 .68rem var(--font-mono);
  letter-spacing: .04em;
}
.scan-mark-fail { color: var(--orange); }
.scan-mark-pass { color: var(--teal-bright); }
.scan-key {
  flex: none;
  width: 168px;
  color: var(--on-dark);
  font: 700 .84rem var(--font-mono);
}
.scan-note { color: var(--muted-dark); font: 500 .84rem var(--font-mono); }
.scan-console-footer {
  padding: 11px 20px;
  border-top: 1px solid var(--line-dark);
  color: var(--muted-dark);
  font: 600 .74rem var(--font-mono);
}
.scan-console-fail .scan-console-footer { color: var(--orange); }
.scan-console-pass .scan-console-footer { color: var(--teal-bright); }

/* ---------- proof / contrast ---------- */
.proof-layout { max-width: 760px; }
.contrast-rows {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.contrast-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 18px 22px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  background: var(--dark);
}
.contrast-label { flex: 1; color: var(--on-dark); font: 600 .92rem var(--font-mono); }
.contrast-value { color: var(--orchid); font: 800 1.3rem var(--font-mono); }
.contrast-badge {
  padding: 5px 12px;
  border: 1px solid var(--teal-bright);
  border-radius: 999px;
  color: var(--teal-bright);
  font: 800 .68rem var(--font-mono);
  letter-spacing: .06em;
}
.proof-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-8);
  font: 800 .95rem var(--font-display);
  color: var(--teal);
}
.proof-link img { width: 15px; }
.proof-link:hover { color: var(--ink); }

/* ---------- modes ---------- */
.mode-head { max-width: 640px; }
.mode-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.mode-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: border-color 160ms var(--ease-out);
}
.mode-card:hover, .mode-card:focus-within { border-color: var(--teal); }
.mode-card-shot { overflow: hidden; border-bottom: 1px solid var(--line); background: var(--paper); }
.mode-card-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 495;
  object-fit: cover;
  object-position: top;
}
.mode-card figcaption { padding: 16px; }
.mode-card strong { display: block; font: 800 .95rem var(--font-display); }
.mode-card span { display: block; margin-top: 4px; color: var(--muted); font-size: .78rem; }
.mode-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: var(--space-4);
  padding: 22px clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--cream);
}
.mode-cta p { max-width: min(44ch, 100%); color: var(--ink-soft); font: .84rem var(--font-mono); }

/* ---------- memory (real file-tree listing) ---------- */
.memory-copy { max-width: 640px; }
.file-tree {
  margin-top: var(--space-8);
  padding: var(--space-6) clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
}
.file-tree-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 16px;
  row-gap: 4px;
  padding: 10px 0;
}
.file-tree-row + .file-tree-row { border-top: 1px solid var(--line); }
.file-tree-row code { font: 700 .88rem var(--font-mono); color: var(--ink); }
.file-tree-branch { color: var(--muted); font-weight: 400; }
.file-tree-desc { color: var(--ink-soft); font-size: .86rem; }
.file-tree-dir {
  border-top: none !important;
  padding-top: 4px;
  padding-bottom: 6px;
  justify-content: space-between;
}
.file-tree-dir code { color: var(--teal); font-weight: 800; }
.file-tree-dir-spaced { margin-top: 10px; padding-top: 16px; border-top: 1px dashed var(--line) !important; }
.file-tree-tag {
  color: var(--muted);
  font: 600 .68rem var(--font-mono);
  letter-spacing: .02em;
  text-transform: uppercase;
}

/* ---------- install ---------- */
.install-panel {
  padding: clamp(40px, 6vw, 72px) clamp(24px, 5vw, 64px);
  border-radius: var(--radius-lg);
  background: var(--dark);
  color: var(--on-dark);
}
.install-copy { max-width: 640px; }
.install-copy .micro-label { background: var(--dark-soft); border-color: rgba(230, 104, 38, .4); }
.install-copy h2 { font: 800 clamp(1.8rem, 3.4vw, 2.7rem)/1.1 var(--font-display); color: var(--white); }
.install-copy > p:not(.micro-label):not(.install-note) { margin-top: 14px; color: var(--on-dark); opacity: .82; font-size: 1.02rem; }
.install-row-large { width: min(560px, 100%); background: var(--dark-soft); border: 1px solid var(--line-dark); }
.install-note { margin-top: var(--space-4); font-size: .84rem; opacity: .7; }
.install-note a { color: var(--teal-bright); }

/* ---------- footer ---------- */
.site-footer { padding: var(--space-8) 0 var(--space-12); }
.footer-layout {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer-note { color: var(--muted); font: .68rem var(--font-mono); }
.footer-links { display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: .82rem; }
.footer-sponsor { display: inline-flex; align-items: center; gap: 6px; color: var(--teal); }
.footer-sponsor svg { flex: none; }
.footer-sponsor:hover, .footer-sponsor:focus-visible { color: var(--ink); }
.footer-badge { display: inline-flex; flex: none; opacity: .85; transition: opacity 160ms var(--ease-out); }
.footer-badge:hover, .footer-badge:focus-visible { opacity: 1; }
.footer-badge img { display: block; height: 26px; width: auto; }

/* ---------- reveal-on-scroll baseline ----------
   Content is visible by default. script.js adds .reveal-armed to <html>
   only once GSAP + ScrollTrigger have actually loaded and the reveal
   timelines are wired up — so a slow CDN, a blocked script, or any
   scroll-trigger timing edge case can never leave real content invisible.
   See script.js's initMotion() and its watchdog. */
html.reveal-armed [data-reveal],
html.reveal-armed [data-reveal-group] > * {
  opacity: 0;
  transform: translateY(18px);
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-layout { grid-template-columns: minmax(0, 1fr); }
  .hero-visual { order: -1; }
  .hero h1 { max-width: min(20ch, 100%); }
  .mode-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .hero { padding: var(--space-12) 0 var(--space-16); }
  .problem-section, .how-section, .proof-section, .mode-section, .memory-section, .install-section { padding: var(--space-16) 0; }
  .mode-grid { grid-template-columns: minmax(0, 1fr); }
  .mode-cta { flex-direction: column; align-items: flex-start; }
  .contrast-row { flex-wrap: wrap; }
  .footer-layout { flex-direction: column; align-items: flex-start; }
  .scan-console-body li { flex-wrap: wrap; row-gap: 4px; }
  .scan-key { width: auto; }
  .file-tree-dir { flex-direction: column; align-items: flex-start; row-gap: 2px; }
}