/* ===== Tokens ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(2.75rem, 1rem + 5.2vw, 5.75rem);

  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem; --space-5: 1.25rem;
  --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem; --space-16: 4rem;
  --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --radius-sm: .375rem; --radius-md: .5rem; --radius-lg: .875rem; --radius-full: 9999px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 180ms var(--ease);
  --content-wide: 1200px;

  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;
}

/* Light: cool studio grey */
:root, [data-theme='light'] {
  --color-bg: #eef0f1;
  --color-surface: #f6f7f8;
  --color-surface-2: #ffffff;
  --color-surface-offset: #e4e7ea;
  --color-divider: #d8dce0;
  --color-border: #c9ced3;
  --color-text: #12161a;
  --color-text-muted: #545c64;
  --color-text-faint: #8a929a;
  --color-text-inverse: #f4f6f7;
  --color-primary: #007a6a;
  --color-primary-hover: #00604f;
  --color-primary-soft: color-mix(in oklab, #007a6a 14%, transparent);
  --color-overhang: #d2361f;
  --color-solid: #9aa3ab;
  --shadow-md: 0 6px 18px rgb(18 22 26 / 0.08);
  --shadow-lg: 0 18px 48px rgb(18 22 26 / 0.12);
  color-scheme: light;
}
/* Dark: graphite viewport */
[data-theme='dark'] {
  --color-bg: #0e1114;
  --color-surface: #14181c;
  --color-surface-2: #1a1f24;
  --color-surface-offset: #11151a;
  --color-divider: #232a31;
  --color-border: #2e363e;
  --color-text: #e6eaed;
  --color-text-muted: #9aa3ab;
  --color-text-faint: #646d76;
  --color-text-inverse: #0e1114;
  --color-primary: #19c9b0;
  --color-primary-hover: #4fdcc7;
  --color-primary-soft: color-mix(in oklab, #19c9b0 16%, transparent);
  --color-overhang: #ff5a43;
  --color-solid: #6c757e;
  --shadow-md: 0 6px 18px rgb(0 0 0 / 0.35);
  --shadow-lg: 0 18px 48px rgb(0 0 0 / 0.5);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0e1114; --color-surface: #14181c; --color-surface-2: #1a1f24; --color-surface-offset: #11151a;
    --color-divider: #232a31; --color-border: #2e363e; --color-text: #e6eaed; --color-text-muted: #9aa3ab;
    --color-text-faint: #646d76; --color-text-inverse: #0e1114; --color-primary: #19c9b0; --color-primary-hover: #4fdcc7;
    --color-primary-soft: color-mix(in oklab, #19c9b0 16%, transparent); --color-overhang: #ff5a43; --color-solid: #6c757e;
    color-scheme: dark;
  }
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-body); font-size: var(--text-base); line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p a, .fine a, .hero__note a, .footer a, dd a, li a { color: var(--color-primary); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; margin: 0; letter-spacing: -0.015em; text-wrap: balance; }
p { margin: 0 0 var(--space-4); text-wrap: pretty; }
code { font-family: var(--font-mono); font-size: .88em; padding: .1em .35em; border-radius: var(--radius-sm); background: var(--color-surface-offset); border: 1px solid var(--color-divider); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
em.ui { font-style: normal; font-weight: 500; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--color-primary); color: var(--color-text-inverse); padding: var(--space-2) var(--space-4); z-index: 100; }
.skip:focus { left: var(--space-4); top: var(--space-4); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

.wrap { width: min(100% - 2 * clamp(var(--space-4), 4vw, var(--space-10)), var(--content-wide)); margin-inline: auto; }
.section { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }
.section--tight { padding-block: clamp(var(--space-12), 6vw, var(--space-20)); }
.section--alt { background: var(--color-surface); border-block: 1px solid var(--color-divider); }
.section__head { max-width: 46rem; margin-bottom: var(--space-10); }
.eyebrow { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .06em; text-transform: uppercase; color: var(--color-primary); margin-bottom: var(--space-4); }
.h2 { font-size: var(--text-2xl); font-weight: 800; margin-bottom: var(--space-5); }
.h3 { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-3); }
.lede { font-size: var(--text-lg); color: var(--color-text-muted); line-height: 1.5; max-width: 40rem; }
.lede--sm { font-size: var(--text-base); }
.fine { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-4); max-width: 60rem; }
.prose p { color: var(--color-text-muted); }
.prose strong { color: var(--color-text); }

.split { display: grid; gap: var(--space-10); grid-template-columns: 1fr; }
@media (min-width: 900px) { .split { grid-template-columns: 5fr 7fr; gap: var(--space-16); align-items: start; } .split--top > :first-child { position: sticky; top: 6rem; } }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); font: 700 var(--text-sm)/1 var(--font-body); padding: .95em 1.4em; border-radius: var(--radius-full); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: background var(--transition-interactive), transform var(--transition-interactive), border-color var(--transition-interactive), color var(--transition-interactive); }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--ghost { border-color: var(--color-border); color: var(--color-text); background: transparent; }
.btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn--sm { padding: .7em 1.1em; }
.btn--lg { font-size: var(--text-base); padding: 1.05em 1.8em; }
.icon-btn { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: var(--radius-full); border: 1px solid var(--color-border); background: transparent; color: var(--color-text); cursor: pointer; transition: border-color var(--transition-interactive); }
.icon-btn:hover { border-color: var(--color-primary); }

/* ===== Nav ===== */
.nav { position: sticky; top: 0; z-index: 50; background: color-mix(in oklab, var(--color-bg) 82%, transparent); backdrop-filter: blur(14px) saturate(1.4); -webkit-backdrop-filter: blur(14px) saturate(1.4); border-bottom: 1px solid var(--color-divider); }
.nav__inner { width: min(100% - 2 * clamp(var(--space-4), 4vw, var(--space-10)), var(--content-wide)); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); height: 4.25rem; }
.brand { display: inline-flex; align-items: center; gap: var(--space-2); text-decoration: none; }
.brand__mark { width: 30px; height: 30px; color: var(--color-text); }
.brand__name { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; letter-spacing: -0.02em; }
.nav__links { display: none; gap: var(--space-6); }
.nav__links a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; transition: color var(--transition-interactive); }
.nav__links a:hover { color: var(--color-text); }
.nav__actions { display: flex; gap: var(--space-3); align-items: center; }
@media (min-width: 1040px) { .nav__links { display: flex; } }

/* ===== Hero ===== */
.hero { padding-block: clamp(var(--space-10), 6vw, var(--space-20)) clamp(var(--space-12), 6vw, var(--space-20)); position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--color-divider) 1px, transparent 1px), linear-gradient(90deg, var(--color-divider) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, #000 10%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, #000 10%, transparent 75%); opacity: .55; pointer-events: none; }
.hero__grid { position: relative; display: grid; gap: var(--space-10); align-items: center; }
@media (min-width: 960px) { .hero__grid { grid-template-columns: 1fr 1.08fr; gap: var(--space-12); } }
.hero__title { font-size: var(--text-hero); font-weight: 800; letter-spacing: -0.035em; line-height: .95; margin-bottom: var(--space-6); }
.hero__title span { color: var(--color-primary); }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }
.hero__note { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-6); }

/* ===== Compare slider ===== */
.compare-slider { --pos: 50%; position: relative; margin: 0; border-radius: var(--radius-lg); overflow: hidden; background: #0b0d10; border: 1px solid var(--color-border); box-shadow: var(--shadow-lg); aspect-ratio: 4 / 5; width: min(100%, calc(80vh * 0.8)); justify-self: center; margin-inline: auto; touch-action: pan-y; user-select: none; }
.compare-slider > img, .compare-slider__top img { width: 100%; height: 100%; object-fit: cover; }
.compare-slider__top { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.compare-slider__handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; background: #fff; transform: translateX(-1px); pointer-events: none; box-shadow: 0 0 0 1px rgb(0 0 0 / .25); }
.compare-slider__handle span { position: absolute; top: 50%; left: 50%; width: 44px; height: 44px; border-radius: 50%; background: #fff; transform: translate(-50%, -50%); box-shadow: 0 4px 16px rgb(0 0 0 / .35); }
.compare-slider__handle span::before, .compare-slider__handle span::after { content: ""; position: absolute; top: 50%; width: 0; height: 0; border: 6px solid transparent; transform: translateY(-50%); }
.compare-slider__handle span::before { left: 7px; border-right-color: #12161a; }
.compare-slider__handle span::after { right: 7px; border-left-color: #12161a; }
.compare-slider__range { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.compare-slider figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: var(--space-3) var(--space-4); font-size: var(--text-xs); color: #e9edf0; background: rgb(8 10 13 / .82); backdrop-filter: blur(4px); pointer-events: none; z-index: 2; }
.compare-slider figcaption a { pointer-events: auto; color: #5fe3cf; }
.tag { position: absolute; top: var(--space-4); font: 500 var(--text-xs)/1 var(--font-mono); padding: .5em .75em; border-radius: var(--radius-full); background: rgb(10 12 15 / .7); color: #eef1f3; backdrop-filter: blur(6px); pointer-events: none; }
.tag--left { left: var(--space-4); }
.tag--right { right: var(--space-4); }
.tag--left::before, .tag--right::before { content: ""; display: inline-block; width: .6em; height: .6em; border-radius: 50%; margin-right: .5em; vertical-align: .05em; }
.tag--left::before { background: #ff5a43; }
.tag--right::before { background: #19c9b0; }
.compare-slider--color .tag--left::before, .compare-slider--color .tag--right::before { display: none; }

/* ===== Stats ===== */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1px; margin: clamp(var(--space-12), 6vw, var(--space-16)) 0 0; background: var(--color-divider); border: 1px solid var(--color-divider); border-radius: var(--radius-lg); overflow: hidden; }
.stat { background: var(--color-surface); padding: var(--space-6); }
.stat dt { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .05em; }
.stat dd { margin: var(--space-2) 0 0; }
.stat dd .mono { display: block; font-size: var(--text-2xl); font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; color: var(--color-text); }
.stat small { display: block; margin-top: var(--space-2); font-size: var(--text-xs); color: var(--color-text-faint); line-height: 1.45; }

/* ===== Segmented ===== */
.seg { display: inline-flex; padding: 4px; gap: 2px; border-radius: var(--radius-full); background: var(--color-surface-offset); border: 1px solid var(--color-divider); margin-bottom: var(--space-6); flex-wrap: wrap; }
.seg button { font: 500 var(--text-sm)/1 var(--font-body); padding: .7em 1.1em; border: 0; border-radius: var(--radius-full); background: transparent; color: var(--color-text-muted); cursor: pointer; transition: background var(--transition-interactive), color var(--transition-interactive); }
.seg button:hover { color: var(--color-text); }
.seg button[aria-selected='true'], .seg button[aria-pressed='true'] { background: var(--color-surface-2); color: var(--color-text); box-shadow: var(--shadow-md); }
.seg--full { display: flex; width: 100%; margin-bottom: 0; }
.seg--full button { flex: 1; }

/* ===== Comparison table ===== */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.cmp { width: 100%; border-collapse: collapse; min-width: 720px; font-size: var(--text-sm); }
.cmp th, .cmp td { text-align: left; vertical-align: top; padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--color-divider); }
.cmp thead th { font: 500 var(--text-xs)/1.2 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--color-text-muted); background: var(--color-surface-offset); position: sticky; top: 0; }
.cmp tbody th { font-weight: 700; width: 20%; }
.cmp td { color: var(--color-text-muted); width: 36%; }
.cmp .cmp__oh { background: var(--color-primary-soft); color: var(--color-text); }
.cmp thead .cmp__oh { color: var(--color-primary); }
.cmp tbody tr:last-child > * { border-bottom: 0; }
.cmp tbody tr { transition: opacity 240ms var(--ease); }
.cmp.is-diff tr[data-diff='0'] { display: none; }
.mk { display: inline-block; font: 500 .72rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .04em; padding: .35em .55em; border-radius: var(--radius-sm); margin-right: .45em; vertical-align: .1em; }
.mk--yes { background: color-mix(in oklab, var(--color-primary) 20%, transparent); color: var(--color-primary); }
.mk--part { background: color-mix(in oklab, #d8a21e 22%, transparent); color: #b07e00; }
[data-theme='dark'] .mk--part { color: #f0c14b; }
.mk--no { background: var(--color-surface-offset); color: var(--color-text-faint); border: 1px solid var(--color-divider); }

/* ===== Lab ===== */
.lab { display: grid; gap: var(--space-6); grid-template-columns: 1fr; }
@media (min-width: 960px) { .lab { grid-template-columns: 1.7fr 1fr; } }
.lab__stage { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); background: var(--color-surface-offset); }
#labCanvas { width: 100%; height: auto; display: block; aspect-ratio: 5 / 2; }
.lab__legend { display: flex; flex-wrap: wrap; gap: var(--space-4); padding: var(--space-3) var(--space-4); font-size: var(--text-xs); color: var(--color-text-muted); border-top: 1px solid var(--color-divider); background: var(--color-surface); }
.sw { display: inline-block; width: .8rem; height: .8rem; border-radius: 3px; margin-right: .45em; vertical-align: -.1em; }
.sw--solid { background: var(--color-solid); }
.sw--fill { background: var(--color-primary); }
.sw--ovh { background: var(--color-overhang); }
.lab__panel { display: flex; flex-direction: column; gap: var(--space-6); padding: var(--space-6); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); }
.lab__group { border: 0; padding: 0; margin: 0; }
.lab__group legend, .range-label { font: 500 var(--text-xs)/1 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--color-text-muted); margin-bottom: var(--space-3); display: flex; justify-content: space-between; width: 100%; padding: 0; }
.range-label output { color: var(--color-primary); font-size: var(--text-sm); }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip { font: 500 var(--text-sm)/1 var(--font-body); padding: .65em 1em; border-radius: var(--radius-full); border: 1px solid var(--color-border); background: transparent; color: var(--color-text-muted); cursor: pointer; transition: all var(--transition-interactive); }
.chip:hover { color: var(--color-text); border-color: var(--color-text-faint); }
.chip.is-on { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-soft); }
input[type='range'] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; cursor: pointer; }
input[type='range']::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--color-primary) var(--fill, 50%), var(--color-border) var(--fill, 50%)); }
input[type='range']::-moz-range-track { height: 4px; border-radius: 2px; background: var(--color-border); }
input[type='range']::-moz-range-progress { height: 4px; border-radius: 2px; background: var(--color-primary); }
input[type='range']::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8px; border-radius: 50%; background: var(--color-surface-2); border: 2px solid var(--color-primary); box-shadow: var(--shadow-md); }
input[type='range']::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--color-surface-2); border: 2px solid var(--color-primary); }
.range-ticks { display: flex; justify-content: space-between; font-size: .75rem; color: var(--color-text-faint); margin-top: var(--space-1); }
.lab__readout { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.lab__readout > div { padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface-offset); border: 1px solid var(--color-divider); }
.lab__readout .mono { display: block; font-size: var(--text-lg); font-weight: 500; }
.lab__readout small { display: block; font-size: .75rem; color: var(--color-text-faint); line-height: 1.3; margin-top: 2px; }
.lab__hint { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0; min-height: 3em; }

/* ===== Shots ===== */
.shot { margin: 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); background: #0b0d10; }
.shot img { width: 100%; }
.shot figcaption { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); padding: var(--space-3) var(--space-4); font: 400 var(--text-xs)/1.4 var(--font-mono); color: #aeb6bd; background: #0b0d10; border-top: 1px solid #1d2329; text-align: center; }
@media (max-width: 640px) { .shot figcaption { grid-template-columns: 1fr; text-align: left; } }
.color-row { display: grid; gap: var(--space-8); margin-top: clamp(var(--space-12), 7vw, var(--space-20)); align-items: center; }
@media (min-width: 900px) { .color-row { grid-template-columns: 1fr 1.2fr; gap: var(--space-12); } }
.color-row__copy p { color: var(--color-text-muted); }

/* ===== Viewer ===== */
.viewer { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); background: radial-gradient(ellipse at 50% 35%, #232a31, #0b0d10 70%); }
.viewer__canvas { position: relative; width: 100%; aspect-ratio: 16 / 9; cursor: grab; }
@media (max-width: 720px) { .viewer__canvas { aspect-ratio: auto; height: 380px; } }
.viewer__canvas:active { cursor: grabbing; }
.viewer__canvas canvas { display: block; width: 100% !important; height: 100% !important; }
.viewer__loading { position: absolute; inset: 0; display: grid; place-items: center; font: 500 var(--text-sm)/1 var(--font-mono); color: #9aa3ab; }
.viewer__bar { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4) var(--space-8); padding: var(--space-4); background: var(--color-surface-2); border-top: 1px solid var(--color-border); }
.viewer__bar .seg { margin: 0; }
.switch { display: inline-flex; align-items: center; gap: var(--space-3); font-size: var(--text-sm); cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch span { width: 40px; height: 22px; border-radius: 11px; background: var(--color-border); position: relative; transition: background var(--transition-interactive); }
.switch span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform var(--transition-interactive); }
.switch input:checked + span { background: var(--color-overhang); }
.switch input:checked + span::after { transform: translateX(18px); }
.switch input:focus-visible + span { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.range-inline { display: inline-flex; align-items: center; gap: var(--space-3); font-size: var(--text-sm); min-width: 260px; flex: 1; max-width: 420px; }
.range-inline output { color: var(--color-overhang); min-width: 3ch; }

/* ===== Steps ===== */
.steps { list-style: none; padding: 0; margin: 0 0 var(--space-12); display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); counter-reset: s; }
.step { padding: var(--space-6); border-radius: var(--radius-lg); border: 1px solid var(--color-border); background: var(--color-surface); }
.step__n { display: inline-block; font-size: var(--text-xs); color: var(--color-primary); margin-bottom: var(--space-4); padding: .3em .55em; border: 1px solid var(--color-primary); border-radius: var(--radius-sm); }
.step p { color: var(--color-text-muted); font-size: var(--text-sm); margin: 0; }
.ui-tabs .seg { margin-bottom: var(--space-4); }
.ui-shot { margin: 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); background: #1d1d1d; }
.ui-shot img { width: 100%; transition: opacity 220ms var(--ease); }
.ui-shot figcaption { padding: var(--space-3) var(--space-4); font-size: var(--text-sm); color: var(--color-text-muted); background: var(--color-surface); border-top: 1px solid var(--color-border); }

/* ===== Accordion ===== */
.acc { display: flex; flex-direction: column; gap: var(--space-2); }
.acc details { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); transition: border-color var(--transition-interactive); }
.acc details[open] { border-color: color-mix(in oklab, var(--color-primary) 50%, var(--color-border)); }
.acc summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); padding: var(--space-4) var(--space-5); font-weight: 700; }
.acc summary::-webkit-details-marker { display: none; }
.acc summary .mono { font-size: var(--text-xs); font-weight: 400; color: var(--color-text-faint); text-align: right; }
.acc summary::after { content: "+"; font: 400 1.3rem/1 var(--font-mono); color: var(--color-text-faint); transition: transform var(--transition-interactive); }
.acc details[open] summary::after { transform: rotate(45deg); color: var(--color-primary); }
.acc details > p { padding: 0 var(--space-5) var(--space-5); margin: 0; color: var(--color-text-muted); }
.kv { margin: 0; padding: 0 var(--space-5) var(--space-5); display: grid; gap: var(--space-3); }
.kv div { display: grid; grid-template-columns: minmax(9rem, 13rem) 1fr; gap: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--color-divider); }
.kv dt { font-weight: 700; font-size: var(--text-sm); }
.kv dd { margin: 0; color: var(--color-text-muted); font-size: var(--text-sm); }
@media (max-width: 560px) { .kv div { grid-template-columns: 1fr; gap: var(--space-1); } .acc summary .mono { display: none; } }

/* ===== Bonus ===== */
.bonus { display: grid; gap: var(--space-6); grid-template-columns: 1fr; }
@media (min-width: 900px) { .bonus { grid-template-columns: 1fr 1fr; } }
.card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); display: flex; flex-direction: column; }
.card > img { aspect-ratio: 2 / 1; object-fit: cover; width: 100%; background: #0b0d10; border-bottom: 1px solid var(--color-border); }
.card__body { padding: var(--space-6); }
.card__body > p { color: var(--color-text-muted); }
.ver { font-size: var(--text-xs); font-weight: 400; color: var(--color-text-faint); margin-left: .3em; }
.ticks { list-style: none; padding: 0; margin: 0 0 var(--space-2); display: grid; gap: var(--space-2); font-size: var(--text-sm); }
.ticks li { padding-left: 1.6em; position: relative; color: var(--color-text-muted); }
.ticks li::before { content: ""; position: absolute; left: 0; top: .45em; width: .8em; height: .45em; border-left: 2px solid var(--color-primary); border-bottom: 2px solid var(--color-primary); transform: rotate(-45deg); }
.ticks strong { color: var(--color-text); }

/* ===== Install ===== */
.install { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); }
.install li { display: grid; grid-template-columns: 2.5rem 1fr; gap: var(--space-4); padding: var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); color: var(--color-text-muted); }
.install li strong { color: var(--color-text); }
.install li > .mono { display: grid; place-items: center; width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--color-primary-soft); color: var(--color-primary); font-weight: 500; }

/* ===== CTA / Footer ===== */
.cta { padding-block: clamp(var(--space-16), 10vw, var(--space-32)); text-align: center; background: radial-gradient(ellipse 60% 80% at 50% 100%, var(--color-primary-soft), transparent 70%); border-top: 1px solid var(--color-divider); }
.cta__inner { display: flex; flex-direction: column; align-items: center; }
.cta .lede { margin-inline: auto; margin-bottom: var(--space-8); }
.footer { border-top: 1px solid var(--color-divider); padding-block: var(--space-8); }
.footer__inner { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-8); justify-content: space-between; font-size: var(--text-xs); color: var(--color-text-faint); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

@media (max-width: 720px) {
  .cmp { min-width: 0; }
  .cmp thead { display: none; }
  .cmp, .cmp tbody, .cmp tr, .cmp th, .cmp td { display: block; width: 100%; }
  .cmp tbody tr { border-bottom: 1px solid var(--color-divider); }
  .cmp tbody th { width: 100%; padding-bottom: var(--space-2); border-bottom: 0; }
  .cmp td { border-bottom: 0; padding-top: var(--space-2); }
  .cmp td::before { display: block; font: 500 var(--text-xs)/1.2 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--color-text-faint, var(--color-text-muted)); margin-bottom: var(--space-1); content: '3D Print Toolbox'; }
  .cmp td.cmp__oh::before { content: 'OverHeal'; color: var(--color-primary); }
}

/* Real projects */
.real { margin-top: clamp(var(--space-10), 6vw, var(--space-16)); }
.real:first-of-type { margin-top: 0; }
.real__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2) var(--space-4); margin-bottom: var(--space-5); }
.real__num { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .06em; color: var(--color-primary); }
.real__head .h3 { margin: 0; }
.real__meta { font-size: var(--text-xs); color: var(--color-text-muted); margin: 0; }
.compare-slider--wide { aspect-ratio: 1860 / 900; width: 100%; }
.compare-slider--even { aspect-ratio: 615 / 461; width: 100%; border-radius: 0; border: 0; box-shadow: none; }
.compare-slider--even .tag--left::before, .compare-slider--even .tag--right::before { display: none; }
.compare-slider--wide .tag--left::before, .compare-slider--wide .tag--right::before { display: none; }
.real__grid { display: grid; gap: var(--space-4); margin-top: var(--space-4); }
@media (min-width: 900px) { .real__grid { grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr); align-items: stretch; } }
.real__stack { display: grid; gap: var(--space-4); align-content: start; }
.real__pair { display: grid; gap: var(--space-4); }
@media (min-width: 640px) { .real__pair { grid-template-columns: 1fr 1fr; } }
.tile { position: relative; margin: 0; border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: #0b0d10; display: flex; flex-direction: column; }
.tile img { width: 100%; height: auto; display: block; }
.compare-slider--tile { width: 100%; margin: 0; border: 0; border-radius: 0; box-shadow: none; flex: 1 0 auto; }
.compare-slider--tile .tag--left::before, .compare-slider--tile .tag--right::before { display: none; }
.compare-slider--tile img { height: 100%; }
.real__stack .compare-slider--tile { flex: 0 0 auto; }
.real__pair { align-items: start; }
.tile--portrait img { flex: 1; object-fit: cover; min-height: 0; }
.tile figcaption { padding: var(--space-3) var(--space-4); font-size: var(--text-xs); color: #aeb6bd; border-top: 1px solid #1d2329; background: #0b0d10; }
.tag--static { position: absolute; top: var(--space-3); z-index: 1; }