/* Huemantics public site. Every color is a --hm-* role token from a generated
   system (assets/theme.css is the real export); the page only paints assigned
   pairs: text/muted/link on canvas|surface|raised, on-X on X, status on its tint. */
@font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 300 800; font-display: swap; src: url('/fonts/fraunces-display.woff2') format('woff2'); }
@font-face { font-family: 'Fraunces'; font-style: italic; font-weight: 300 800; font-display: swap; src: url('/fonts/fraunces-italic.woff2') format('woff2'); unicode-range: U+0020, U+0027, U+002C-002E, U+0061-007A, U+2019; }
@property --hm-canvas { syntax: '<color>'; inherits: true; initial-value: #FBF5F7; }
@property --hm-surface { syntax: '<color>'; inherits: true; initial-value: #FFFDFD; }
@property --hm-raised { syntax: '<color>'; inherits: true; initial-value: #F1E9EC; }
@property --hm-text { syntax: '<color>'; inherits: true; initial-value: #1F181B; }
@property --hm-muted { syntax: '<color>'; inherits: true; initial-value: #6B6064; }
@property --hm-border { syntax: '<color>'; inherits: true; initial-value: #918489; }
@property --hm-primary { syntax: '<color>'; inherits: true; initial-value: #1F6F5C; }
@property --hm-primary-hover { syntax: '<color>'; inherits: true; initial-value: #06614E; }
@property --hm-primary-active { syntax: '<color>'; inherits: true; initial-value: #005444; }
@property --hm-on-primary { syntax: '<color>'; inherits: true; initial-value: #F5FCFA; }
@property --hm-secondary { syntax: '<color>'; inherits: true; initial-value: #F08DB7; }
@property --hm-on-secondary { syntax: '<color>'; inherits: true; initial-value: #1F181B; }
@property --hm-accent { syntax: '<color>'; inherits: true; initial-value: #9ADBFF; }
@property --hm-on-accent { syntax: '<color>'; inherits: true; initial-value: #1F181B; }
@property --hm-focus { syntax: '<color>'; inherits: true; initial-value: #1F6F5C; }
@property --hm-selection { syntax: '<color>'; inherits: true; initial-value: #F08DB7; }
@property --hm-on-selection { syntax: '<color>'; inherits: true; initial-value: #1F181B; }
@property --hm-success { syntax: '<color>'; inherits: true; initial-value: #417B29; }
@property --hm-success-bg { syntax: '<color>'; inherits: true; initial-value: #E7F5E2; }
@property --hm-warning { syntax: '<color>'; inherits: true; initial-value: #7E5400; }
@property --hm-warning-bg { syntax: '<color>'; inherits: true; initial-value: #FCEEDB; }
@property --hm-danger { syntax: '<color>'; inherits: true; initial-value: #7F2021; }
@property --hm-danger-bg { syntax: '<color>'; inherits: true; initial-value: #FFEBE9; }
@property --hm-info { syntax: '<color>'; inherits: true; initial-value: #24418D; }
@property --hm-info-bg { syntax: '<color>'; inherits: true; initial-value: #E9F0FF; }
@property --hm-link { syntax: '<color>'; inherits: true; initial-value: #1F6F5C; }
@property --hm-disabled-bg { syntax: '<color>'; inherits: true; initial-value: #F1E9EC; }
@property --hm-disabled-fg { syntax: '<color>'; inherits: true; initial-value: #6B6064; }
:root {
  --display: 'Fraunces', ui-serif, 'Iowan Old Style', Georgia, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, 'Segoe UI Variable Text', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'Cascadia Code', 'SF Mono', Menlo, Consolas, monospace;
  --ease: cubic-bezier(.22, .8, .12, 1);
  --gutter: clamp(16px, 4vw, 56px);
  --max: 1280px;
  --radius: 18px;
  --ring: var(--hm-focus);
  --root-primary: var(--hm-primary);
  --t: .7s;
  transition: --hm-canvas var(--t) var(--ease), --hm-surface var(--t) var(--ease), --hm-raised var(--t) var(--ease), --hm-text var(--t) var(--ease), --hm-muted var(--t) var(--ease), --hm-border var(--t) var(--ease), --hm-primary var(--t) var(--ease), --hm-primary-hover var(--t) var(--ease), --hm-primary-active var(--t) var(--ease), --hm-on-primary var(--t) var(--ease), --hm-secondary var(--t) var(--ease), --hm-on-secondary var(--t) var(--ease), --hm-accent var(--t) var(--ease), --hm-on-accent var(--t) var(--ease), --hm-focus var(--t) var(--ease), --hm-selection var(--t) var(--ease), --hm-on-selection var(--t) var(--ease), --hm-success var(--t) var(--ease), --hm-success-bg var(--t) var(--ease), --hm-warning var(--t) var(--ease), --hm-warning-bg var(--t) var(--ease), --hm-danger var(--t) var(--ease), --hm-danger-bg var(--t) var(--ease), --hm-info var(--t) var(--ease), --hm-info-bg var(--t) var(--ease), --hm-link var(--t) var(--ease), --hm-disabled-bg var(--t) var(--ease), --hm-disabled-fg var(--t) var(--ease);
}
:root.dragging { --t: .16s; }
:root.vt { transition: none !important; }
:root.vt * { transition: none !important; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--hm-canvas); color: var(--hm-text); font: 400 17px/1.6 var(--sans); text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; overflow-x: clip; }
::selection { background: var(--hm-selection); color: var(--hm-on-selection); }
a { color: var(--hm-link); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; border-radius: 6px; }
code { font: 500 .88em var(--mono); background: var(--hm-raised); color: var(--hm-text); padding: .1em .35em; border-radius: 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 50; background: var(--hm-primary); color: var(--hm-on-primary); padding: 10px 16px; border-radius: 10px; }
.skip:focus { top: 12px; }
.cvd-filters { position: absolute; width: 0; height: 0; }
em { font-style: italic; }

/* ---- buttons ---------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; gap: .5em; font: 600 15px/1 var(--sans); border-radius: 999px; padding: 14px 22px; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .25s var(--ease), background-color .2s; }
.btn:active { transform: translateY(1px) scale(.98); }
.btn-primary { background: var(--hm-primary); color: var(--hm-on-primary); }
.btn-primary:hover { background: var(--hm-primary-hover); text-decoration: none; }
.btn-primary:active { background: var(--hm-primary-active); }
.btn-ghost { background: var(--hm-surface); color: var(--hm-text); border-color: var(--hm-border); }
.btn-ghost:hover { background: var(--hm-raised); }
.btn-small { padding: 10px 16px; font-size: 14px; }
.btn-large { padding: 20px 34px; font-size: 18px; }
.btn-large::after { content: '→'; transition: transform .3s var(--ease); }
.btn-large:hover::after { transform: translateX(4px); }
.seg { font: 600 14px/1 var(--sans); padding: 10px 14px; border: 1px solid var(--hm-border); background: var(--hm-surface); color: var(--hm-muted); cursor: pointer; }
.seg + .seg { margin-left: -1px; }
.seg:first-of-type { border-radius: 999px 0 0 999px; }
.seg:last-of-type { border-radius: 0 999px 999px 0; }
.seg.is-on { background: var(--hm-primary); color: var(--hm-on-primary); border-color: var(--hm-primary); }

/* ---- progress + nav ---------------------------------------------------- */
.progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 40; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--hm-primary), var(--hm-accent), var(--hm-secondary)); pointer-events: none; }
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) { .progress { animation: grow linear both; animation-timeline: scroll(root); } }
}
@keyframes grow { to { transform: scaleX(1); } }
.nav { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 24px; padding: 14px var(--gutter); background: var(--hm-canvas); border-bottom: 1px solid color-mix(in oklab, var(--hm-border) 45%, transparent); }
.wordmark { display: inline-flex; align-items: center; gap: 10px; font: 600 19px/1 var(--display); letter-spacing: -.01em; color: var(--hm-text); text-decoration: none; }
.wordmark:hover { text-decoration: none; }
.mark { width: 24px; height: 24px; flex: none; transition: transform .5s var(--ease); }
.wordmark:hover .mark { transform: rotate(-8deg) scale(1.06); }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { color: var(--hm-muted); text-decoration: none; font-size: 15px; padding: 8px 12px; border-radius: 999px; }
.nav-links a:hover { color: var(--hm-text); background: var(--hm-surface); }
.nav-tools { display: flex; align-items: center; gap: 10px; }
.mode-toggle { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--hm-border); background: var(--hm-surface); display: grid; place-items: center; cursor: pointer; }
.mode-sun { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--hm-text); background: linear-gradient(90deg, var(--hm-text) 50%, transparent 50%); transition: transform .6s var(--ease); }
.mode-toggle[data-mode="dark"] .mode-sun { transform: rotate(180deg); }
@media (max-width: 900px) {
  .nav { flex-wrap: wrap; row-gap: 8px; }
  .nav-links { order: 3; width: 100%; margin: 0 calc(var(--gutter) * -1); padding: 0 var(--gutter); overflow-x: auto; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { white-space: nowrap; padding: 6px 10px; font-size: 14px; }
  .nav-tools { margin-left: auto; }
}

/* ---- hero ---------------------------------------------------------------- */
.hero { position: relative; max-width: var(--max); margin: 0 auto; padding: clamp(40px, 8vw, 112px) var(--gutter) 40px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .9fr); gap: clamp(28px, 5vw, 72px); align-items: end; isolation: isolate; }
.ghost-hex { position: absolute; z-index: -1; left: calc(var(--gutter) - .04em); bottom: clamp(70px, 9vw, 120px); margin: 0; font: 300 clamp(72px, 19.5vw, 312px)/.8 var(--display); letter-spacing: -.04em; color: transparent; -webkit-text-stroke: 1px color-mix(in oklab, var(--hm-link) 32%, transparent); pointer-events: none; user-select: none; display: flex; font-variant-numeric: lining-nums; }
.gh { display: inline-block; }
@media (prefers-reduced-motion: no-preference) { .gh.tick { animation: roll .6s var(--ease); } }
@keyframes roll { from { transform: translateY(.3em); opacity: 0; filter: blur(4px); } }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 18px; font: 600 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--hm-muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--hm-primary); box-shadow: 0 0 0 4px color-mix(in oklab, var(--hm-primary) 22%, transparent); }
.display { font-family: var(--display); font-weight: 560; font-size: clamp(60px, 10.5vw, 168px); line-height: .9; letter-spacing: -.035em; margin: 0; font-variation-settings: 'SOFT' 30; text-wrap: balance; }
.display .line { display: block; }
.display .word { display: inline-block; }
.accent-word { color: var(--hm-link); font-weight: 400; position: relative; padding-right: .04em; }
.accent-word::after { content: ''; position: absolute; left: .02em; right: .06em; bottom: .02em; height: .07em; border-radius: 1em; background: linear-gradient(90deg, var(--hm-primary), var(--hm-accent), var(--hm-secondary)); transform-origin: 0 50%; }
@media (prefers-reduced-motion: no-preference) {
  .display .word { animation: rise 1s var(--ease) both; }
  .display .line:nth-child(1) .word:nth-child(2) { animation-delay: .08s; }
  .display .line:nth-child(2) .word:nth-child(1) { animation-delay: .16s; }
  .display .line:nth-child(2) .word:nth-child(2) { animation-delay: .24s; }
  .accent-word::after { animation: sweep 1.1s .55s var(--ease) both; }
  .lede, .tuner, .score { animation: fade .9s .3s var(--ease) both; }
  .score { animation-delay: .45s; }
}
@keyframes rise { from { opacity: 0; transform: translateY(.28em); font-weight: 300; } }
@keyframes sweep { from { transform: scaleX(0); } }
@keyframes fade { from { opacity: 0; transform: translateY(14px); } }
.lede { font-size: clamp(17px, 1.6vw, 21px); color: var(--hm-muted); max-width: 40em; margin: 28px 0 0; }
.hero-links { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; margin: 26px 0 0; font-weight: 600; }
.hero-play { display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border-radius: 999px; background: var(--hm-primary); color: var(--hm-on-primary); text-decoration: none; }
.hero-play:hover { background: var(--hm-primary-hover); text-decoration: none; }
.hero-play span { font-size: 1.2em; }
.lede strong { color: var(--hm-text); font-weight: 650; }

.tuner { background: var(--hm-surface); border: 1px solid var(--hm-border); border-radius: 24px; padding: 20px; display: grid; gap: 16px; box-shadow: 0 30px 60px -40px color-mix(in oklab, var(--hm-text) 45%, transparent); }
.tuner-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.tuner-swatch { position: relative; width: 56px; height: 56px; border-radius: 16px; background: var(--hm-primary); overflow: hidden; cursor: pointer; box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 18%, transparent); flex: none; }
.tuner-swatch input { position: absolute; inset: -8px; width: calc(100% + 16px); height: calc(100% + 16px); opacity: 0; cursor: pointer; }
.tuner-swatch:focus-within { outline: 3px solid var(--ring); outline-offset: 3px; }
.tuner-hex { display: grid; gap: 2px; }
.tuner-label { font: 600 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--hm-muted); }
.tuner-hex input { width: 6.2em; font: 500 24px/1.1 var(--mono); color: var(--hm-text); background: transparent; border: 0; border-bottom: 1px solid var(--hm-border); padding: 4px 0; }
.tuner-hex input[aria-invalid="true"] { border-bottom-color: var(--hm-danger); }
.tuner-readout { margin-left: auto; display: grid; justify-items: end; gap: 4px; font: 500 13px/1.2 var(--mono); color: var(--hm-muted); }
.tuner-readout b { color: var(--hm-text); font-size: 20px; }
.spectrum { display: block; }
.spectrum input { -webkit-appearance: none; appearance: none; width: 100%; height: 34px; border-radius: 999px; margin: 0; cursor: pointer;
  background: linear-gradient(90deg, hsl(0 70% 50%), hsl(40 85% 50%), hsl(80 70% 42%), hsl(140 60% 40%), hsl(190 70% 40%), hsl(230 70% 55%), hsl(280 60% 52%), hsl(330 70% 50%), hsl(359 70% 50%));
  background: linear-gradient(90deg in oklch longer hue, oklch(.62 .17 0), oklch(.62 .17 359));
  box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 14%, transparent); }
.spectrum input::-webkit-slider-thumb { -webkit-appearance: none; width: 30px; height: 30px; border-radius: 50%; background: var(--hm-primary); border: 4px solid var(--hm-surface); box-shadow: 0 0 0 1px var(--hm-border), 0 6px 14px -4px color-mix(in oklab, var(--hm-text) 50%, transparent); transition: transform .2s var(--ease); }
.spectrum input:active::-webkit-slider-thumb { transform: scale(1.12); }
.spectrum input::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--hm-primary); border: 4px solid var(--hm-surface); box-shadow: 0 0 0 1px var(--hm-border); }
.spectrum input:focus-visible { outline-offset: 4px; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; }
.preset { display: inline-flex; align-items: center; gap: 8px; font: 500 14px/1 var(--sans); color: var(--hm-text); background: var(--hm-raised); border: 1px solid transparent; border-radius: 999px; padding: 8px 12px 8px 8px; cursor: pointer; transition: border-color .2s, transform .25s var(--ease); }
.preset i { width: 16px; height: 16px; border-radius: 50%; background: var(--p); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 20%, transparent); }
.preset:hover { transform: translateY(-1px); border-color: var(--hm-border); }
.preset.is-on { border-color: var(--hm-text); }
.tuner-foot { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.tuner-note { margin: 0; font-size: 13px; color: var(--hm-muted); }
.auto-toggle { display: inline-flex; align-items: center; gap: 8px; font: 600 13px/1 var(--sans); color: var(--hm-text); background: transparent; border: 1px solid var(--hm-border); border-radius: 999px; padding: 7px 12px; cursor: pointer; }
.auto-icon { width: 10px; height: 10px; border-left: 3px solid currentColor; border-right: 3px solid currentColor; }
.auto-toggle.is-paused .auto-icon { border: 0; width: 0; height: 0; border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 9px solid currentColor; }
.noscript-note { margin: 0; font-size: 14px; color: var(--hm-muted); }

.score { grid-column: 1 / -1; margin: clamp(12px, 3vw, 40px) 0 0; overflow-x: clip; overflow-clip-margin: 0; }
.score-bars { list-style: none; margin: 0; padding: 0; height: clamp(150px, 22vw, 260px); display: flex; align-items: flex-end; gap: clamp(2px, .5vw, 6px); }
.score-bar { position: relative; flex: 1; height: 100%; display: flex; align-items: flex-end; }
.score-fill { display: block; width: 100%; height: calc(14% + var(--l) * 86%); background: var(--c); border-radius: clamp(3px, .6vw, 8px) clamp(3px, .6vw, 8px) 2px 2px; box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 12%, transparent); transition: height var(--t) var(--ease) calc(var(--i) * 22ms), background-color var(--t) var(--ease) calc(var(--i) * 22ms); transform-origin: 50% 100%; }
:root.dragging .score-fill { transition-delay: 0s; }
@media (prefers-reduced-motion: no-preference) { .score-fill { animation: bar 1s var(--ease) both; animation-delay: calc(.5s + var(--i) * 24ms); } }
@media (prefers-reduced-motion: reduce) { .score-fill, .pair-meter span { transition: none; } :root { --t: 0s; } }
@keyframes bar { from { transform: scaleY(0); } }
.score-tip { position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translate(-50%, 4px); opacity: 0; pointer-events: none; white-space: nowrap; background: var(--hm-text); color: var(--hm-canvas); font: 500 12px/1.3 var(--mono); padding: 6px 8px; border-radius: 8px; transition: opacity .2s, transform .2s var(--ease); z-index: 2; }
.score-tip b { display: block; font-weight: 700; }
.score-bar:nth-child(-n+4) .score-tip { left: 0; transform: translate(0, 4px); }
.score-bar:nth-last-child(-n+4) .score-tip { left: auto; right: 0; transform: translate(0, 4px); }
.score-bar:nth-child(-n+4):hover .score-tip, .score-bar:nth-last-child(-n+4):hover .score-tip { transform: none; }
.score-bar:hover .score-tip { opacity: 1; transform: translate(-50%, 0); }
.score-bar:hover .score-fill { filter: brightness(1.04); }
.score figcaption { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: baseline; margin-top: 14px; font-size: 14px; color: var(--hm-muted); border-top: 1px solid var(--hm-border); padding-top: 12px; }
.score figcaption > span:first-child { font: 600 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--hm-text); }
.score figcaption [data-system-name] { margin-left: auto; font-family: var(--mono); font-size: 13px; }
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; align-items: start; }
}

/* ---- marquee ------------------------------------------------------------ */
.marquee { overflow: hidden; border-block: 1px solid var(--hm-border); background: var(--hm-surface); padding: 14px 0; margin-top: clamp(24px, 4vw, 48px); }
.marquee-track { display: flex; gap: 36px; width: max-content; font: 500 14px/1 var(--mono); color: var(--hm-muted); }
.marquee-track span { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; }
.marquee-track i { width: 12px; height: 12px; border-radius: 4px; box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 18%, transparent); }
@media (prefers-reduced-motion: no-preference) { :root[data-js="on"]:not(.still) .marquee-track { animation: marquee 60s linear infinite; } .marquee:hover .marquee-track { animation-play-state: paused; } }
@keyframes marquee { to { transform: translateX(calc(-50% - 18px)); } }

/* ---- chapters ------------------------------------------------------------ */
.chapter { max-width: var(--max); margin: 0 auto; padding: clamp(80px, 12vw, 176px) var(--gutter) 0; }
.chapter-head { display: grid; grid-template-columns: minmax(80px, .22fr) minmax(0, 1fr); column-gap: clamp(20px, 4vw, 56px); margin-bottom: clamp(32px, 5vw, 64px); }
.chapter-no { grid-row: span 2; margin: 0; font: 300 clamp(48px, 7vw, 104px)/.9 var(--display); color: transparent; -webkit-text-stroke: 1px var(--hm-muted); font-variant-numeric: lining-nums; }
.display-2 { font: 520 clamp(40px, 6.4vw, 96px)/.98 var(--display); letter-spacing: -.03em; margin: 0; text-wrap: balance; font-variation-settings: 'SOFT' 40; }
.display-2 em { color: var(--hm-link); font-weight: 400; }
.chapter-lede { max-width: 44em; margin: 22px 0 0; color: var(--hm-muted); font-size: clamp(16px, 1.4vw, 19px); }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .display-2 { animation: weigh linear both; animation-timeline: view(); animation-range: entry 0% cover 35%; }
    .chapter-no { animation: drift linear both; animation-timeline: view(); animation-range: entry 0% exit 100%; }
  }
}
@keyframes weigh { from { font-weight: 300; letter-spacing: -.01em; } }
@keyframes drift { from { transform: translateY(24px); } to { transform: translateY(-24px); } }
@media (max-width: 720px) { .chapter-head { grid-template-columns: 1fr; } .chapter-no { grid-row: auto; margin-bottom: 8px; } }

/* ---- shared specimen (scoped by inline --hm-* on its container) ---------- */
.spec-ui { display: grid; gap: 10px; font-size: 13px; line-height: 1.45; color: var(--hm-text); }
.spec-bar, .page-spec-nav { display: flex; align-items: center; gap: 10px; background: var(--hm-surface); color: var(--hm-text); border-radius: 10px; padding: 8px 10px; font-weight: 600; }
.spec-logo { width: 14px; height: 14px; border-radius: 4px; background: var(--hm-primary); flex: none; }
.spec-nav.muted, .page-spec-nav .muted { color: var(--hm-muted); font-weight: 500; }
.spec-pill { margin-left: auto; background: var(--hm-accent); color: var(--hm-on-accent); border-radius: 999px; padding: 2px 8px; font-size: 11px; font-weight: 700; }
.spec-card { background: var(--hm-surface); border: 1px solid var(--hm-border); border-radius: 12px; padding: 12px; display: grid; gap: 4px; align-content: start; }
.spec-eyebrow { margin: 0; font: 700 10px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--hm-muted); }
.spec-title { margin: 0; font-weight: 700; font-size: 15px; color: var(--hm-text); }
.spec-copy { margin: 0; color: var(--hm-muted); }
.spec-link { color: var(--hm-link); text-decoration: underline; text-underline-offset: .15em; }
.spec-actions { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.spec-btn { background: var(--hm-primary); color: var(--hm-on-primary); border-radius: 8px; padding: 6px 10px; font-weight: 700; font-size: 12px; }
.spec-btn.ghost { background: var(--hm-surface); color: var(--hm-text); box-shadow: inset 0 0 0 1px var(--hm-border); }
.spec-btn.small { margin-left: auto; }
.spec-status { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.spec-alert { display: flex; align-items: center; gap: 6px; border-radius: 8px; padding: 6px 8px; font-weight: 600; font-size: 12px; }
.spec-alert.success { background: var(--hm-success-bg); color: var(--hm-success); }
.spec-alert.warning { background: var(--hm-warning-bg); color: var(--hm-warning); }
.spec-alert.danger { background: var(--hm-danger-bg); color: var(--hm-danger); }
.spec-alert.info { background: var(--hm-info-bg); color: var(--hm-info); }
.spec-icon { display: inline-grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px currentColor; font: 800 10px/1 var(--sans); flex: none; }

/* ---- the colour piano ------------------------------------------------------ */
.sound-toggle { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--hm-border); background: var(--hm-surface); display: grid; place-items: center; cursor: pointer; }
.sound-bars { display: flex; align-items: flex-end; gap: 2px; height: 16px; }
.sound-bars i { width: 3px; height: 4px; border-radius: 2px; background: var(--hm-text); transition: height .3s var(--ease); }
.sound-toggle[aria-pressed="true"] .sound-bars i:nth-child(1) { height: 9px; }
.sound-toggle[aria-pressed="true"] .sound-bars i:nth-child(2) { height: 16px; }
.sound-toggle[aria-pressed="true"] .sound-bars i:nth-child(3) { height: 12px; }
.sound-toggle[aria-pressed="true"] .sound-bars i:nth-child(4) { height: 6px; }
@media (prefers-reduced-motion: no-preference) {
  :root:not(.still) .sound-toggle[aria-pressed="true"] .sound-bars i { animation: eq 1.1s ease-in-out infinite alternate; }
  .sound-bars i:nth-child(2) { animation-delay: -.3s !important; } .sound-bars i:nth-child(3) { animation-delay: -.6s !important; } .sound-bars i:nth-child(4) { animation-delay: -.9s !important; }
}
@keyframes eq { from { height: 3px; } to { height: 16px; } }
.stage { position: relative; height: clamp(200px, 30vw, 380px); border-radius: 28px 28px 0 0; background: var(--hm-surface); border: 1px solid var(--hm-border); border-bottom: 0; overflow: hidden; isolation: isolate; display: grid; place-items: center; align-content: center; }
.stage-note { margin: 0; font: 400 clamp(72px, 11vw, 168px)/.9 var(--display); letter-spacing: -.04em; color: var(--hm-text); font-variation-settings: 'SOFT' 100; transition: transform .5s var(--ease); }
.stage-hex { margin: 10px 0 0; font: 500 14px/1 var(--mono); letter-spacing: .08em; color: var(--hm-muted); text-transform: uppercase; }
.stage-dots { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); list-style: none; margin: 0; padding: 0; display: flex; gap: 5px; }
.stage-dots li { width: 9px; height: 9px; border-radius: 50%; background: var(--c); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 22%, transparent); transition: transform .25s var(--ease); }
.stage-dots li.lit { transform: scale(1.9); }
@media (max-width: 520px) { .stage-dots { gap: 3px; } .stage-dots li { width: 7px; height: 7px; } }
@media (prefers-reduced-motion: no-preference) { .stage.hit .stage-note { animation: strike .6s var(--ease); } }
@keyframes strike { from { transform: scale(1.12); font-weight: 700; } }
.bloom { position: absolute; z-index: -1; left: var(--x); bottom: -30%; width: min(70vw, 760px); aspect-ratio: 1; margin-left: max(-35vw, -380px); border-radius: 50%; background: radial-gradient(circle, var(--b) 0 22%, color-mix(in oklab, var(--b) 55%, transparent) 42%, transparent 68%); opacity: 0; pointer-events: none; }
.beam { position: absolute; z-index: -1; left: var(--x); bottom: 0; width: var(--w); height: 100%; margin-left: calc(var(--w) / -2); background: linear-gradient(to top, var(--b), transparent 85%); opacity: 0; pointer-events: none; }
:root[data-scheme="light"] .bloom { mix-blend-mode: multiply; }
:root[data-scheme="dark"] .bloom { mix-blend-mode: screen; }
@media (prefers-reduced-motion: no-preference) {
  .bloom { animation: bloom 2.4s cubic-bezier(.15,.75,.25,1) forwards; }
  .beam { animation: beam 1.3s cubic-bezier(.2,.8,.2,1) forwards; }
}
@media (prefers-reduced-motion: reduce) { .bloom { animation: glow 1.6s ease-out forwards; transform: scale(1); } .beam { display: none; } }
@keyframes bloom { 0% { opacity: .95; transform: scale(.06) translateY(10%); } 60% { opacity: .55; } 100% { opacity: 0; transform: scale(1.5) translateY(-22%); } }
@keyframes beam { 0% { opacity: .9; transform: scaleY(.2); transform-origin: 50% 100%; } 100% { opacity: 0; transform: scaleY(1); transform-origin: 50% 100%; } }
@keyframes glow { 0% { opacity: .7; } 100% { opacity: 0; } }
.piano:focus { outline: none; }
.piano { touch-action: pan-y; display: grid; grid-template-columns: repeat(15, minmax(0, 1fr)); gap: 5px; padding: 8px; background: var(--hm-text); border-radius: 0 0 28px 28px; }
.key { position: relative; height: clamp(150px, 17vw, 230px); border: 0; border-radius: 4px 4px 14px 14px; background: var(--k); color: var(--ink); cursor: pointer; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 6px; padding: 0 2px 14px; box-shadow: inset 0 -12px 0 color-mix(in oklab, #000 22%, transparent), inset 0 1px 0 color-mix(in oklab, #fff 30%, transparent); transition: transform .14s var(--ease), box-shadow .14s var(--ease), filter .2s; -webkit-tap-highlight-color: transparent; touch-action: pan-y; }
.key:hover { filter: brightness(1.06) saturate(1.08); }
.key.down, .key:active { transform: translateY(5px); box-shadow: inset 0 -6px 0 color-mix(in oklab, #000 25%, transparent), 0 0 34px -4px var(--k); filter: brightness(1.1) saturate(1.15); }
.key.tonic::before { content: ''; position: absolute; top: 14px; width: 6px; height: 6px; border-radius: 50%; background: var(--ink); }
.key-note { font: 500 clamp(17px, 1.7vw, 24px)/1 var(--display); }
.key-note sub { font-size: .55em; vertical-align: baseline; margin-left: 1px; font-family: var(--mono); }
.key-hex { font: 500 9.5px/1 var(--mono); letter-spacing: .02em; writing-mode: vertical-rl; transform: rotate(180deg); margin-bottom: 4px; }
.key-kbd { font: 700 11px/1 var(--mono); padding: 3px 5px; border-radius: 5px; box-shadow: inset 0 0 0 1px currentColor; background: none; color: inherit; }
.key:focus-visible { outline: 3px solid var(--hm-canvas); outline-offset: -6px; }
@media (hover: none) { .key-kbd { display: none; } }
@media (max-width: 900px) { .key-hex { display: none; } }
@media (max-width: 640px) {
  .piano { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
  .key { height: 84px; border-radius: 12px; padding-bottom: 12px; }
  .key:nth-child(-n+5) { grid-row: 3; } .key:nth-child(n+6):nth-child(-n+10) { grid-row: 2; } .key:nth-child(n+11) { grid-row: 1; }
  .key.tonic::before { top: 10px; }
}
.piano-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-top: 22px; }
.play-icon { width: 0; height: 0; border-top: 6px solid transparent; border-bottom: 6px solid transparent; border-left: 10px solid currentColor; }
[data-play-palette][aria-pressed="true"] .play-icon { width: 10px; height: 10px; border: 0; background: currentColor; border-radius: 2px; }
.switch { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; color: var(--hm-text); cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track { width: 44px; height: 26px; border-radius: 999px; background: var(--hm-raised); box-shadow: inset 0 0 0 1px var(--hm-border); position: relative; transition: background-color .25s; }
.switch-track::after { content: ''; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--hm-text); transition: transform .3s var(--ease); }
.switch input:checked + .switch-track { background: var(--hm-primary); }
.switch input:checked + .switch-track::after { transform: translateX(18px); background: var(--hm-on-primary); }
.switch input:focus-visible + .switch-track { outline: 3px solid var(--ring); outline-offset: 3px; }
.piano-note { flex: 1 1 22em; margin: 0; font-size: 14px; color: var(--hm-muted); }
.score-bar.lit .score-fill { transform: scaleY(1.06); filter: brightness(1.12) saturate(1.25); box-shadow: 0 0 28px -2px var(--c), inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 12%, transparent); transition: transform .12s, filter .12s, box-shadow .12s; }
:root[data-js="off"] :is(.piano-tools, .sound-toggle) { display: none; }
:root[data-js="off"] .key { cursor: default; }

/* ---- strategies ---------------------------------------------------------- */
.strategies { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 1180px) {
  .strategies { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: minmax(260px, 34%); overflow-x: auto; scroll-snap-type: x mandatory; margin-inline: calc(var(--gutter) * -1); padding: 6px var(--gutter) 18px; scroll-padding-inline: var(--gutter); scrollbar-width: thin; }
  .strategy { scroll-snap-align: start; }
}
@media (max-width: 640px) { .strategies { grid-auto-columns: 82%; } }
.strategy { position: relative; display: grid; gap: 14px; align-content: start; background: var(--hm-canvas); color: var(--hm-text); border-radius: var(--radius); padding: 16px; box-shadow: 0 0 0 1px color-mix(in oklab, var(--hm-text) 14%, transparent); transition: transform .45s var(--ease), box-shadow .3s; overflow: hidden; isolation: isolate; }
.strategy::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: 0; background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%), color-mix(in oklab, var(--hm-primary) 16%, transparent), transparent 70%); transition: opacity .3s; }
.strategy:hover { transform: translateY(-4px); }
.strategy:hover::before { opacity: 1; }
.strategy.is-active { box-shadow: 0 0 0 2px var(--ring), 0 24px 48px -32px color-mix(in oklab, var(--hm-text) 60%, transparent); }
.strategy > *, .vision > *, .spec-ui > * { min-width: 0; }
.strategy-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.strategy-name { font: 600 19px/1.1 var(--display); text-transform: capitalize; letter-spacing: -.01em; }
.strategy-swatches { display: flex; }
.strategy-swatches i { width: 14px; height: 14px; border-radius: 50%; margin-left: -4px; box-shadow: 0 0 0 2px var(--hm-canvas); }
.strategy-why { margin: 0; font-size: 13.5px; color: var(--hm-muted); line-height: 1.5; min-height: 4.5em; }
.strategy-wear { justify-self: start; font: 700 13px/1 var(--sans); background: var(--hm-primary); color: var(--hm-on-primary); border: 0; border-radius: 999px; padding: 10px 16px; cursor: pointer; transition: background-color .2s; }
.strategy-wear:hover { background: var(--hm-primary-hover); }
.strategy-wear[aria-pressed="true"] { background: var(--hm-surface); color: var(--hm-text); box-shadow: inset 0 0 0 1px var(--hm-border); cursor: default; }
.strategy-wear[aria-pressed="true"]::before { content: '✓ '; }
.strategy :focus-visible { outline-color: var(--ring); }

/* ---- band ---------------------------------------------------------------- */
.band { margin-top: clamp(80px, 12vw, 176px); background: var(--hm-primary); color: var(--hm-on-primary); padding: clamp(64px, 10vw, 140px) var(--gutter); }
.band > * { max-width: var(--max); margin-inline: auto; }
.band-kicker { font: 600 13px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 26px; }
.band-quote { font: 450 clamp(30px, 4.4vw, 64px)/1.12 var(--display); letter-spacing: -.02em; margin-top: 0; margin-bottom: 0; text-wrap: pretty; font-variation-settings: 'SOFT' 60; }
.band-quote em { font-weight: 400; text-decoration: underline; text-decoration-thickness: .06em; text-underline-offset: .12em; }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .band-quote { animation: ink linear both; animation-timeline: view(); animation-range: entry 10% cover 45%; }
  }
}
@keyframes ink { from { font-weight: 300; transform: translateY(.4em); } }

/* ---- contrast ------------------------------------------------------------ */
.pairs-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 0; margin-bottom: 18px; }
.pairs-total { margin: 0 0 0 auto; color: var(--hm-muted); font: 500 15px/1 var(--mono); }
.pairs-total b { font: 600 32px/1 var(--display); color: var(--hm-text); }
.pairs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }
.pair { display: grid; grid-template-columns: 44px minmax(0, 1.3fr) minmax(60px, 1fr) 86px 44px; align-items: center; gap: 14px; padding: 10px 0; border-bottom: 1px solid color-mix(in oklab, var(--hm-border) 55%, transparent); font-size: 14.5px; }
.pair-chip { display: grid; place-items: center; width: 44px; height: 32px; border-radius: 8px; font: 700 14px/1 var(--sans); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 14%, transparent); }
.pair-name { text-transform: capitalize; color: var(--hm-text); }
.pair-on { color: var(--hm-muted); text-transform: none; }
.pair-meter { position: relative; height: 6px; border-radius: 6px; background: var(--hm-raised); }
.pair-meter span { position: absolute; inset: 0 auto 0 0; width: var(--w); border-radius: 6px; background: var(--hm-primary); transition: width .6s var(--ease); }
.pair-meter::after { content: ''; position: absolute; left: var(--min); top: -4px; bottom: -4px; width: 2px; background: var(--hm-text); border-radius: 2px; }
.pair-ratio { font: 500 14px/1 var(--mono); text-align: right; color: var(--hm-muted); }
.pair-ratio b { color: var(--hm-text); font-size: 17px; }
.pair-min { font: 500 12px/1 var(--mono); color: var(--hm-muted); text-align: right; }
.pair.fail .pair-ratio b { color: var(--hm-danger); }
@media (max-width: 960px) { .pairs { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .pair { grid-template-columns: 40px minmax(0, 1fr) 72px; } .pair-meter { grid-column: 2 / -1; grid-row: 2; } .pair-min { display: none; } }

/* ---- vision -------------------------------------------------------------- */
.stat-row, .proof { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 36px; }
.stat, .proof-stat { margin: 0; padding: 22px; border-radius: var(--radius); background: var(--hm-surface); border: 1px solid var(--hm-border); display: grid; gap: 8px; align-content: start; position: relative; overflow: hidden; isolation: isolate; }
.stat b, .proof-stat b { font: 500 clamp(44px, 5.5vw, 76px)/1 var(--display); letter-spacing: -.03em; color: var(--hm-text); font-variant-numeric: lining-nums tabular-nums; }
.stat span, .proof-stat span { color: var(--hm-muted); font-size: 15px; }
.proof-stat::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: 0; background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 0%), color-mix(in oklab, var(--hm-primary) 12%, transparent), transparent 70%); transition: opacity .3s; }
.proof-stat:hover::before { opacity: 1; }
.visions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.vision { margin: 0; background: var(--hm-canvas); color: var(--hm-text); border-radius: var(--radius); padding: 14px; display: grid; gap: 12px; align-content: start; box-shadow: 0 0 0 1px color-mix(in oklab, var(--hm-text) 14%, transparent); }
.vision figcaption { font: 600 18px/1.1 var(--display); }
.vision-de { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; font: 500 12px/1.3 var(--mono); color: var(--hm-muted); }
.vision-de li { display: flex; align-items: center; gap: 8px; }
.vision-de b { margin-left: auto; color: var(--hm-text); }
.vision-de li.close b { background: var(--hm-warning-bg); color: var(--hm-warning); padding: 1px 5px; border-radius: 5px; }
.vision-de li.close b::after { content: ' ▲'; }
.dots { display: inline-flex; }
.dots i { width: 12px; height: 12px; border-radius: 50%; box-shadow: 0 0 0 2px var(--hm-canvas); }
.dots i + i { margin-left: -3px; }
.whole-page { display: flex; flex-wrap: wrap; align-items: center; gap: 0; margin-top: 28px; }
.whole-page > span { margin-right: 14px; color: var(--hm-muted); font-size: 15px; }
.fineprint { font-size: 13.5px; color: var(--hm-muted); max-width: 52em; margin-top: 18px; }
:root[data-cvd="protanopia"] :is(.nav, main, .footer) { filter: url(#cvd-protanopia); }
:root[data-cvd="deuteranopia"] :is(.nav, main, .footer) { filter: url(#cvd-deuteranopia); }
:root[data-cvd="tritanopia"] :is(.nav, main, .footer) { filter: url(#cvd-tritanopia); }
@media (max-width: 1080px) { .visions { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px) { .stat-row, .proof { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .visions { grid-template-columns: 1fr; } }

/* ---- compare ------------------------------------------------------------- */
.compare { position: relative; display: grid; border-radius: 26px; overflow: hidden; box-shadow: 0 0 0 1px var(--hm-border), 0 40px 80px -60px color-mix(in oklab, var(--hm-text) 70%, transparent); }
.compare-pane { grid-area: 1 / 1; background: var(--hm-canvas); color: var(--hm-text); padding: clamp(16px, 3vw, 36px); }
.compare-pane.dark { clip-path: inset(0 0 0 var(--split)); }
.compare-handle { position: absolute; top: 0; bottom: 0; left: var(--split); width: 2px; margin-left: -1px; background: var(--hm-text); pointer-events: none; }
.compare-handle::after { content: '⟷'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--hm-text); color: var(--hm-canvas); font: 600 18px/1 var(--sans); }
.compare-range { position: absolute; inset: 0; }
.compare-range input { width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.compare:has(input:focus-visible) .compare-handle::after { outline: 3px solid var(--ring); outline-offset: 3px; }
.page-spec { display: grid; gap: 14px; font-size: 14px; }
.page-spec-hero { padding: clamp(16px, 4vw, 48px) 4px; display: grid; gap: 10px; max-width: 40em; margin-inline: auto; text-align: center; justify-items: center; }
.page-spec-hero .spec-actions { justify-content: center; }
.page-spec-title { margin: 0; font: 600 clamp(28px, 4.6vw, 64px)/1.02 var(--display); letter-spacing: -.02em; }
.page-spec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.page-spec .spec-btn { font-size: 13px; padding: 9px 14px; }
.spec-track { display: block; height: 8px; border-radius: 8px; background: var(--hm-raised); margin-top: 8px; overflow: hidden; }
.spec-track span { display: block; height: 100%; width: 82%; background: var(--hm-primary); border-radius: 8px; }
.spec-field { display: block; background: var(--hm-raised); color: var(--hm-text); border-radius: 8px; padding: 8px 10px; margin: 6px 0; font-family: var(--mono); font-size: 12px; box-shadow: inset 0 0 0 1px var(--hm-border); }
.accent-card { background: var(--hm-accent); color: var(--hm-on-accent); border-color: transparent; }
.accent-card .spec-eyebrow, .accent-card .spec-copy { color: var(--hm-on-accent); }
.accent-card .spec-pill { background: var(--hm-surface); color: var(--hm-text); margin-left: 0; justify-self: start; }
@media (max-width: 720px) { .page-spec-grid { grid-template-columns: 1fr; } .page-spec-nav .muted { display: none; } }

/* ---- ship ---------------------------------------------------------------- */
.ship { background: var(--hm-surface); border: 1px solid var(--hm-border); border-radius: 24px; overflow: hidden; }
.ship-tabs { display: flex; align-items: center; gap: 4px; padding: 10px; border-bottom: 1px solid var(--hm-border); flex-wrap: wrap; }
.ship-tabs [role="tab"] { font: 500 14px/1 var(--mono); padding: 10px 14px; border-radius: 10px; border: 0; background: transparent; color: var(--hm-muted); cursor: pointer; }
.ship-tabs [role="tab"][aria-selected="true"] { background: var(--hm-raised); color: var(--hm-text); }
.ship-actions { margin-left: auto; display: flex; gap: 8px; }
.code { margin: 0; max-height: 520px; overflow: auto; padding: 22px 24px; background: var(--hm-raised); color: var(--hm-text); font: 450 13.5px/1.7 var(--mono); tab-size: 2; }
.code code { background: none; padding: 0; font: inherit; }
.code .c { color: var(--hm-muted); font-style: italic; }
.code .k { color: var(--hm-link); }
.code .v::before { content: ''; display: inline-block; width: .8em; height: .8em; margin-right: .35em; border-radius: 3px; background: var(--sw, transparent); vertical-align: -.05em; box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--hm-text) 22%, transparent); }
.ship-status { margin: 0; padding: 0 24px; min-height: 0; font-size: 14px; color: var(--hm-success); background: var(--hm-success-bg); }
.ship-status:not(:empty) { padding: 10px 24px; }

/* ---- honest ------------------------------------------------------------- */
.claims { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.claim-col { border-radius: var(--radius); padding: 24px 26px; background: var(--hm-surface); border: 1px solid var(--hm-border); }
.claim-col h3, .diagnostics h3 { font: 600 24px/1.1 var(--display); margin: 0 0 14px; }
.claim-col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.claim-col li { padding-left: 28px; position: relative; color: var(--hm-text); }
.claim-col li::before { content: '✓'; position: absolute; left: 0; top: .05em; color: var(--hm-text); font-weight: 800; }
.claim-col.not li { color: var(--hm-muted); }
.claim-col.not li::before { content: '—'; color: var(--hm-muted); }
.diagnostics { margin-top: 16px; border-radius: var(--radius); padding: 24px 26px; border: 1px dashed var(--hm-border); }
.diagnostics ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.diag { display: flex; gap: 12px; align-items: baseline; padding: 10px 14px; border-radius: 12px; font-size: 14.5px; }
.diag.warning { background: var(--hm-warning-bg); color: var(--hm-warning); }
.diag.info { background: var(--hm-info-bg); color: var(--hm-info); }
.diag-level { font: 700 11px/1.2 var(--mono); text-transform: uppercase; letter-spacing: .1em; flex: none; min-width: 5.5em; }
@media (max-width: 720px) { .claims { grid-template-columns: 1fr; } .diag { flex-direction: column; gap: 4px; } }

/* ---- finale -------------------------------------------------------------- */
.finale { position: relative; max-width: var(--max); margin: clamp(80px, 12vw, 176px) auto 0; padding: clamp(80px, 12vw, 160px) var(--gutter); text-align: center; overflow: hidden; isolation: isolate; }
.finale::before { content: ''; position: absolute; z-index: -1; left: 50%; top: 50%; width: min(760px, 120vw); aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%;
  background: conic-gradient(from 0deg, var(--hm-primary), var(--hm-accent), var(--hm-warning), var(--hm-success), var(--hm-info), var(--hm-secondary), var(--hm-danger), var(--hm-primary));
  -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 26px), #000 calc(100% - 25px), #000 calc(100% - 1px), transparent);
  mask: radial-gradient(closest-side, transparent calc(100% - 26px), #000 calc(100% - 25px), #000 calc(100% - 1px), transparent); opacity: .9; }
@media (prefers-reduced-motion: no-preference) { :root[data-js="on"]:not(.still) .finale::before { animation: spin 80s linear infinite; } }
@keyframes spin { to { transform: translate(-50%, -50%) rotate(1turn); } }
.finale-title { font-size: clamp(56px, 9vw, 140px); }
.finale-title em { color: var(--hm-link); font-weight: 400; }
.finale p { max-width: 36em; margin: 28px auto 0; color: var(--hm-muted); font-size: clamp(16px, 1.4vw, 19px); }
.finale .finale-actions { margin-top: 36px; }

.footer { max-width: var(--max); margin: 0 auto; padding: 36px var(--gutter) 48px; display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center; border-top: 1px solid var(--hm-border); font-size: 14px; color: var(--hm-muted); }
.footer p { margin: 0; flex: 1 1 30em; }
.wordmark.small { font-size: 17px; }

/* ---- reveal-on-scroll for blocks (JS adds .in; without JS nothing hides) -- */
@media (prefers-reduced-motion: no-preference) {
  :root[data-js="on"] .chapter-head:not(.in) .chapter-lede { opacity: 0; transform: translateY(18px); }
  .chapter-lede { transition: opacity .9s var(--ease) .1s, transform .9s var(--ease) .1s; }
}

/* ---- view transitions ---------------------------------------------------- */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-old(root) { z-index: 1; }
::view-transition-new(root) { z-index: 2; }

/* ---- without JavaScript, hide controls that would do nothing ------------- */
:root[data-js="off"] :is(.stage-hex, .spectrum, .presets, .mode-toggle, .whole-page, .pairs-tools .seg, .ship-actions, .compare-range, .strategy-wear, .tuner-swatch, .tuner-foot) { display: none; }
:root[data-js="off"] .tuner-hex input { border-bottom-color: transparent; }
:root[data-js="off"] :is(#tab-tw, #tab-json) { display: none; }
@media (prefers-contrast: more) { .ghost-hex, .chapter-no { -webkit-text-stroke-color: var(--hm-text); } }
@media print { .nav, .progress, .marquee, .tuner, .whole-page, .finale::before { display: none; } }
@media (max-width: 520px) {
  .nav { gap: 8px; }
  .wordmark { font-size: 17px; gap: 7px; }
  .nav-tools { gap: 6px; }
  .sound-toggle, .mode-toggle { width: 38px; height: 38px; }
  .nav-tools .btn-small { padding: 9px 12px; font-size: 13px; }
}