/* ─────────────────────────────────────────────────────────────────────────
   Cogniscan marketing site: homepage (#landing-screen), /request-demo.html
   and /assessments.html. Everything is scoped to `.site` so it cannot leak
   into the clinician app screens that share index.html.

   World: the faceplate of a precision measurement instrument. Warm-grey
   housing (graphite in dark mode), engraved labels, recessed glass readouts
   that stay dark in both themes, binary LEDs, physical keys with travel, one
   royal-blue key. Motion is stepped or linear, never floaty.

   Theme: light housing by default, graphite when <html> has `.dark` (set
   before paint by the inline script in each page head).
   ───────────────────────────────────────────────────────────────────────── */

/* ─── tokens ──────────────────────────────────────────────────────────── */
.site {
    /* housing */
    --housing: #e2dfd7;
    --housing-hi: #ecebe5;
    --housing-lo: #d4d0c6;
    --well: #f6f5f1;
    --seam-dark: rgba(52, 46, 34, 0.2);
    --seam-light: rgba(255, 255, 255, 0.7);
    --engrave-shadow: 0 1px 0 rgba(255, 255, 255, 0.75);
    --cast: rgba(40, 34, 22, 0.42);
    --grain-tint: 0;

    /* ink on housing */
    --ink: #1b1d1a;
    --ink-2: #44463f;
    --engrave: #575850;
    --placeholder: #6b6c64;

    /* channel ink on housing */
    --mind-ink: #8a4c00;
    --brain-ink: #0b5a91;
    --body-ink: #1d6a3c;
    --treat-ink: #6b3fb0;
    --flag-ink: #b3361b;

    /* glass (always dark) */
    --glass: #0f1311;
    --glass-2: #171d1a;
    --glass-line: #29322d;
    --readout: #e8ebe0;
    --readout-2: #a9b1a6;
    --readout-3: #879086;
    --mind: #f0a43a;
    --brain: #62b4ea;
    --body: #6cca8e;
    --treat: #b89cf3;
    --flag: #ff7a52;
    --led-off: #b9b5aa;

    /* keys */
    --key: #1f4fd1;
    --key-hover: #1a45bd;
    --key-edge: #142f86;
    --key-ink: #ffffff;
    --keyb: #1b1d1a;
    --keyb-edge: #000000;
    --keyb-ink: #f2f1ec;
    --keyh: #f4f3ee;
    --keyh-edge: #bdb8ac;

    --sans: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
    --mono: 'Martian Mono', ui-monospace, 'SF Mono', Menlo, monospace;
    --step: steps(4, end);
    --detent: cubic-bezier(0.16, 1, 0.3, 1);

    background-color: var(--housing);
    background-image: var(--grain);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    color-scheme: light;
    --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.2 0 0 0 0 0.18 0 0 0 0 0.12 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.dark .site {
    --housing: #1e201d;
    --housing-hi: #272a26;
    --housing-lo: #161815;
    --well: #121411;
    --seam-dark: rgba(0, 0, 0, 0.55);
    --seam-light: rgba(255, 255, 255, 0.06);
    --engrave-shadow: 0 -1px 0 rgba(0, 0, 0, 0.6);
    --cast: rgba(0, 0, 0, 0.7);

    --ink: #edece5;
    --ink-2: #bdbeb3;
    --engrave: #a2a397;
    --placeholder: #8f9086;

    --mind-ink: #f0a43a;
    --brain-ink: #6dbbee;
    --body-ink: #76d197;
    --treat-ink: #b89cf3;
    --flag-ink: #ff8a66;

    --glass: #0a0d0b;
    --glass-2: #121714;
    --led-off: #3d413b;

    --key: #2f5fe6;
    --key-hover: #3a69ee;
    --key-edge: #17338f;
    --keyb: #edece5;
    --keyb-edge: #8c8b83;
    --keyb-ink: #1b1d1a;
    --keyh: #30332f;
    --keyh-edge: #0f110e;


    color-scheme: dark;
    --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .035 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

html:has(> body.site-page) {
    background: #e2dfd7;
}

html.dark:has(> body.site-page) {
    background: #1e201d;
}

body.site-page {
    margin: 0;
}

/* index.html also loads the app's main.css, which paints <body>, <header> and
   <footer> navy in dark mode (with !important). Keep the housing. */
body:has(> #app-container > #landing-screen.active) {
    background: #e2dfd7;
}

html.dark body:has(> #app-container > #landing-screen.active) {
    background: #1e201d;
}

.dark .site header.nav {
    background-color: var(--housing-hi) !important;
    border-color: var(--seam-dark) !important;
}

.dark .site footer.site-footer {
    background-color: var(--housing) !important;
    border-color: var(--seam-dark) !important;
}

.dark .site .quote footer {
    background-color: transparent !important;
}

/* ─── base ────────────────────────────────────────────────────────────── */
.site *,
.site *::before,
.site *::after {
    box-sizing: border-box;
}

.site img {
    max-width: 100%;
    display: block;
}

.site h1,
.site h2,
.site h3 {
    margin: 0;
    font-family: var(--sans);
    color: inherit;
    text-wrap: balance;
}

.site p,
.site figure,
.site dl,
.site dd,
.site blockquote {
    margin: 0;
}

.site p {
    text-wrap: pretty;
}

.site a {
    color: inherit;
    text-underline-offset: 0.2em;
    text-decoration-thickness: 1px;
}

.site ::-moz-selection {
    background: var(--key);
    color: #fff;
}

.site ::selection {
    background: var(--key);
    color: #fff;
}

.site :focus-visible {
    outline: 2px solid var(--key);
    outline-offset: 3px;
    border-radius: 4px;
}

.site .glass :focus-visible {
    outline-color: #ffffff;
}

.site .hidden {
    display: none !important;
}

.site [hidden] {
    display: none !important;
}

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

.site .container {
    width: min(1240px, calc(100% - 96px));
    margin: 0 auto;
}

.site .lead {
    font-size: clamp(17px, 1.35vw, 19px);
    line-height: 1.6;
    color: var(--ink-2);
    max-width: 62ch;
}

.site .h2 {
    font-size: clamp(32px, 3.4vw, 48px);
    font-weight: 640;
    font-stretch: 90%;
    line-height: 1.06;
    letter-spacing: -0.025em;
}

/* Engraved caps: the instrument's labelling voice. */
.site .engrave,
.site .ro-label,
.site .module-label,
.site .spec-plate dt,
.site .field label,
.site .field-label,
.site .filter-label,
.site legend {
    font-family: var(--sans);
    font-stretch: 125%;
    font-weight: 600;
    font-size: 11.5px;
    line-height: 1.3;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.site .engrave,
.site .module-label,
.site .spec-plate dt,
.site .field label,
.site .field-label,
.site .filter-label,
.site legend {
    color: var(--engrave);
    text-shadow: var(--engrave-shadow);
}

.site .text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--key);
    text-decoration: none;
}

.dark .site .text-link {
    color: #8fb0ff;
}

.site .text-link:hover {
    text-decoration: underline;
}

.site .text-link svg {
    transition: transform 120ms var(--step);
}

.site .text-link:hover svg {
    transform: translateX(3px);
}

/* ─── LEDs ────────────────────────────────────────────────────────────── */
.site .led {
    display: inline-block;
    flex: none;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--led-off);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.35);
    vertical-align: middle;
}

.site .led-on,
.site .mind .led-on {
    background: radial-gradient(circle at 35% 30%, #fff6 0 18%, transparent 30%), var(--mind);
    box-shadow: inset 0 -1px 1px rgba(0, 0, 0, 0.25);
}

.site .bezel-top .led-on,
.site .module-label .led-on {
    background: radial-gradient(circle at 35% 30%, #fff6 0 18%, transparent 30%), var(--body);
}

.site .brain .led-on {
    background: radial-gradient(circle at 35% 30%, #fff6 0 18%, transparent 30%), var(--brain);
}

.site .body .led-on {
    background: radial-gradient(circle at 35% 30%, #fff6 0 18%, transparent 30%), var(--body);
}

/* Flag: a mark, not a hue. */
.site .flag-mark {
    display: inline-block;
    vertical-align: -2px;
    margin-left: 4px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linejoin: round;
}

.site .flag-mark path {
    fill: currentColor;
    fill-opacity: 0.35;
}

/* ─── keys ────────────────────────────────────────────────────────────── */
.site .key {
    --edge: var(--keyh-edge);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    padding: 0 24px;
    border: 0;
    border-radius: 8px;
    font-family: var(--sans);
    font-size: 16px;
    font-weight: 620;
    font-stretch: 104%;
    letter-spacing: 0.005em;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    background: var(--keyh);
    color: var(--ink);
    box-shadow: 0 3px 0 var(--edge), 0 10px 18px -12px var(--cast), inset 0 1px 0 rgba(255, 255, 255, 0.35);
    transition: transform 70ms steps(2, end), box-shadow 70ms steps(2, end), background-color 120ms;
}

.site .key:hover {
    color: var(--ink);
}

.site .key:active {
    transform: translateY(3px);
    box-shadow: 0 0 0 var(--edge), 0 4px 8px -6px var(--cast), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.site .key:disabled {
    cursor: progress;
    opacity: 0.7;
    transform: translateY(2px);
    box-shadow: 0 1px 0 var(--edge);
}

.site .key-primary {
    --edge: var(--key-edge);
    background: var(--key);
    color: var(--key-ink);
}

.site .key-primary:hover {
    background: var(--key-hover);
    color: var(--key-ink);
}

.site .key-ink {
    --edge: var(--keyb-edge);
    background: var(--keyb);
    color: var(--keyb-ink);
    box-shadow: 0 3px 0 var(--edge), 0 10px 18px -12px var(--cast), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.site .key-ink:hover {
    color: var(--keyb-ink);
}

.site .key-ghost {
    background: var(--housing-hi);
}

.site .key-sm {
    min-height: 38px;
    padding: 0 14px;
    font-size: 14px;
    border-radius: 7px;
    gap: 8px;
}

.site .key-block {
    width: 100%;
}

/* ─── navigation ──────────────────────────────────────────────────────── */
.site .nav {
    position: sticky;
    top: 0;
    z-index: 40;
    background-color: var(--housing-hi);
    background-image: var(--grain);
    border-bottom: 1px solid var(--seam-dark);
    box-shadow: 0 1px 0 var(--seam-light), 0 8px 20px -18px var(--cast);
}

.site .nav-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    height: 68px;
}

.site .nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 19px;
    letter-spacing: -0.01em;
    color: var(--ink);
    text-decoration: none;
}

.site .nav-logo {
    width: 30px;
    height: 30px;
}

.site .nav-links {
    display: flex;
    gap: 26px;
    margin-left: 12px;
}

.site .nav-links a,
.site .nav-signin,
.site .nav-back {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink-2);
    text-decoration: none;
}

.site .nav-links a:hover,
.site .nav-signin:hover,
.site .nav-back:hover {
    color: var(--ink);
    text-decoration: underline;
}

.site .nav-links a,
.site .nav-signin,
.site .nav-back {
    white-space: nowrap;
}

.site .nav-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.site .nav-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-left: auto;
}

/* Two-position toggle switch; the thumb carries the current mode's icon. */
.site .theme-switch {
    position: relative;
    width: 48px;
    height: 26px;
    padding: 0;
    border: 0;
    border-radius: 13px;
    background: var(--housing-lo);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.35), 0 1px 0 var(--seam-light);
    cursor: pointer;
    color: var(--ink);
}

.site .theme-switch svg {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    padding: 3px;
    border-radius: 50%;
    background: var(--keyh);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    transition: transform 140ms var(--detent);
}

.dark .site .theme-switch svg {
    transform: translateX(22px);
}

/* ─── glass (readout windows) ─────────────────────────────────────────── */
.site .glass {
    position: relative;
    background: var(--glass);
    color: var(--readout);
    border-radius: 12px;
    box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.7), inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 1px 0 var(--seam-light);
    overflow: hidden;
}

.site .ro-label {
    color: var(--readout-3);
}

.site .ro-value {
    white-space: nowrap;
    font-family: var(--mono);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    color: var(--readout-2);
}

.site .ro-value.mind { color: var(--mind); }
.site .ro-value.brain { color: var(--brain); }
.site .ro-value.body { color: var(--body); }

.site .ro-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--glass-line);
}

.site .ro-foot {
    margin-top: 14px;
    font-size: 13px;
    color: var(--readout-2);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 16px;
}

.site .sw {
    display: inline-block;
    width: 14px;
    height: 3px;
    margin-right: 6px;
    vertical-align: middle;
    border-radius: 2px;
}

.site .sw.mind { background: var(--mind); }
.site .sw.treat { width: 3px; height: 12px; background: var(--treat); }
.site .sw.body { background: var(--body); }
.site .sw.brain { width: 6px; height: 12px; background: var(--brain); }

.site .ro-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--glass-line);
    border-top: 1px solid var(--glass-line);
    margin-top: 18px;
}

.site .ro-grid > div {
    background: var(--glass);
    padding: 12px 12px 4px 0;
}

.site .ro-grid > div + div {
    padding-left: 14px;
}

.site .ro-grid dt {
    font-size: 12px;
    color: var(--readout-2);
    line-height: 1.3;
}

.site .ro-grid dd {
    margin-top: 6px;
    font-family: var(--mono);
    font-size: clamp(20px, 1.9vw, 26px);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.03em;
    color: var(--readout);
}

.site .ro-grid small,
.site .ro-big small,
.site .metric-list small,
.site .stat-readout small {
    margin-left: 3px;
    font-size: 0.5em;
    letter-spacing: 0;
    color: var(--readout-2);
}

.site .ro-grid .is-flagged dt,
.site .ro-grid .is-flagged dd {
    color: var(--flag);
}

/* ─── hero ────────────────────────────────────────────────────────────── */
.site .hero {
    padding: 64px 0 104px;
}

.site .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 11fr) minmax(0, 13fr);
    grid-template-areas: 'copy inst' 'spec inst';
    gap: 40px 64px;
    align-items: center;
}

.site .hero-copy { grid-area: copy; align-self: end; }
.site .hero-spec { grid-area: spec; align-self: start; }
.site .hero .instrument { grid-area: inst; }

.site .hero h1 {
    font-size: clamp(44px, 5vw, 76px);
    font-weight: 660;
    font-stretch: 86%;
    line-height: 0.98;
    letter-spacing: -0.035em;
}

.site .hero .lead {
    margin-top: 26px;
}

.site .hero-keys {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.site #overview-link {
    margin-top: 22px;
}

.site .spec-plate {
    margin-top: 0;
    padding: 4px 18px;
    border: 1px solid var(--seam-dark);
    border-radius: 8px;
    background: var(--housing-hi);
    box-shadow: inset 0 1px 0 var(--seam-light), 0 1px 0 var(--seam-light);
    max-width: 520px;
}

.site .spec-plate div {
    display: grid;
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 14px;
    padding: 10px 0;
    align-items: baseline;
}

.site .spec-plate div + div {
    border-top: 1px dashed var(--seam-dark);
}

.site .spec-plate dt {
    white-space: nowrap;
}

.site .spec-plate dd {
    font-size: 14px;
    line-height: 1.45;
    color: var(--ink-2);
}

/* The instrument module */
.site .instrument,
.site .scope {
    position: relative;
    padding: 14px;
    border-radius: 20px;
    background-color: var(--housing-hi);
    background-image: var(--grain);
    box-shadow: inset 0 1px 0 var(--seam-light), 0 0 0 1px var(--seam-dark), 0 28px 50px -30px var(--cast), 0 2px 4px -2px var(--cast);
}

.site .bezel-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 2px 6px 12px;
}

.site .bezel-top .engrave {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.site .instrument .glass {
    height: 400px;
    padding: 22px 24px;
}

.site .ch-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.site.js .ch-panel:not([hidden]) {
    animation: ch-cut 180ms steps(6, end) both;
}

@keyframes ch-cut {
    from { clip-path: inset(0 0 100% 0); }
    to { clip-path: inset(0 0 0 0); }
}

/* MIND: library ticker */
.site .ticker {
    position: relative;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(transparent, #000 12%, #000 88%, transparent);
            mask-image: linear-gradient(transparent, #000 12%, #000 88%, transparent);
}

.site .lib-track {
    animation: ticker 70s linear infinite;
}

@keyframes ticker {
    to { transform: translateY(-50%); }
}

.site .lib-cat {
    padding: 14px 0 6px;
    font-size: 11px;
    font-stretch: 125%;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--readout-3);
}

.site .lib-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 6px 0;
    border-bottom: 1px dotted var(--glass-line);
    font-size: 14.5px;
    color: var(--readout);
}

.site .lib-name {
    min-width: 0;
}

.site .lib-tag {
    margin-left: 10px;
    font-size: 10.5px;
    font-stretch: 120%;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--mind);
}

.site .lib-tag.caregiver { color: var(--brain); }
.site .lib-tag.clinician { color: var(--body); }

.site .lib-q {
    flex: none;
    font-family: var(--mono);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    color: var(--mind);
}

/* BRAIN: traces */
.site .traces {
    display: grid;
    gap: 6px;
    flex: 1;
    align-content: center;
}

.site .trace-row {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
}

.site .trace-row span {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--readout-3);
}

.site .trace-wrap {
    height: 44px;
    overflow: hidden;
    border-left: 1px solid var(--glass-line);
}

.site .trace {
    display: block;
    width: 200%;
    height: 100%;
    animation: trace 9s linear infinite;
}

.site .trace.slow {
    animation-duration: 13s;
}

.site .trace path {
    fill: none;
    stroke: var(--brain);
    stroke-width: 1.6;
    vector-effect: non-scaling-stroke;
}

@keyframes trace {
    to { transform: translateX(-50%); }
}

.site .is-held .trace,
.site .is-held .lib-track,
.site .is-offscreen .trace,
.site .is-offscreen .lib-track {
    animation-play-state: paused;
}

/* BODY */
.site .body-readout {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 36px;
    align-items: end;
    flex: 1;
}

.site .ro-big {
    font-family: var(--mono);
    font-size: 104px;
    line-height: 0.9;
    letter-spacing: -0.06em;
    font-variant-numeric: tabular-nums;
}

.site .ro-big small {
    display: block;
    margin: 12px 0 0;
    font-family: var(--sans);
    font-size: 13px;
    letter-spacing: 0;
}

.site .ro-big .body { color: var(--body); }

.site .ro-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.site .ro-spark {
    display: block;
    width: 100%;
    height: 56px;
    margin-top: 18px;
}

.site .ro-spark polyline {
    fill: none;
    stroke: var(--body);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

/* TIMELINE (mini) and the full scope share chart styles */
.site .mini-chart {
    display: block;
    width: 100%;
    flex: 1;
    min-height: 0;
}

.site .grid-lines line {
    stroke: var(--glass-line);
    stroke-width: 1;
}

.site .axis {
    stroke: #4b544d;
    stroke-width: 1.5;
}

.site .rx-line {
    stroke: var(--treat);
    stroke-width: 1.5;
    stroke-dasharray: 5 5;
}

.site .ln-mind,
.site .ln-body {
    fill: none;
    stroke-width: 3.5;
    stroke-linejoin: round;
    stroke-linecap: round;
}

.site .ln-mind { stroke: var(--mind); }
.site .ln-body { stroke: var(--body); }

.site .sessions rect {
    fill: var(--brain);
}

.site .rx-text {
    fill: var(--readout);
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 600;
}

.site .axis-text,
.site .axis-text text {
    fill: var(--readout-3);
    font-family: var(--sans);
    font-size: 13px;
}

/* Controls strip */
.site .controls {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 16px 6px 4px;
}

.site .knob {
    flex: none;
    width: 60px;
    height: 60px;
    cursor: pointer;
    overflow: visible;
}

.site .knob-ticks path {
    stroke: var(--engrave);
    stroke-width: 2;
    stroke-linecap: round;
}

.site .knob-dial {
    fill: var(--housing-lo);
    stroke: var(--seam-dark);
    stroke-width: 1;
}

.site .knob-pointer {
    stroke: var(--ink);
    stroke-width: 3;
    stroke-linecap: round;
    transform-box: view-box;
    transform-origin: 32px 32px;
    transform: rotate(-54deg);
    transition: transform 160ms var(--detent);
}

.site [data-pos="1"] .knob-pointer { transform: rotate(-18deg); }
.site [data-pos="2"] .knob-pointer { transform: rotate(18deg); }
.site [data-pos="3"] .knob-pointer { transform: rotate(54deg); }

.site .selector {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    flex: 1;
    gap: 4px;
    padding: 4px;
    border-radius: 10px;
    background: var(--housing-lo);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 0 var(--seam-light);
}

.site .selector button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    padding: 9px 4px 8px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: var(--engrave);
    font-family: var(--sans);
    font-size: 11.5px;
    font-stretch: 112%;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    text-shadow: var(--engrave-shadow);
}

.site .selector .keep-case {
    text-transform: none;
}

.site .selector button:hover {
    color: var(--ink);
}

.site .selector button[aria-selected="true"] {
    background: var(--keyh);
    color: var(--ink);
    box-shadow: 0 1px 0 var(--keyh-edge), 0 2px 4px -2px var(--cast), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.site .selector [data-ch-tab="mind"][aria-selected="true"] .led { background: var(--mind); }
.site .selector [data-ch-tab="brain"][aria-selected="true"] .led { background: var(--brain); }
.site .selector [data-ch-tab="body"][aria-selected="true"] .led { background: var(--body); }
.site .selector [data-ch-tab="all"][aria-selected="true"] .led { background: var(--readout); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.3); }

.site .hold-key {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    flex: none;
    height: 40px;
    padding: 0 12px;
    border: 0;
    border-radius: 7px;
    background: var(--keyh);
    color: var(--ink-2);
    font-family: var(--sans);
    font-size: 11.5px;
    font-stretch: 125%;
    font-weight: 600;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    cursor: pointer;
    box-shadow: 0 2px 0 var(--keyh-edge), 0 6px 10px -8px var(--cast);
}

.site .hold-key[aria-pressed="true"] {
    transform: translateY(2px);
    box-shadow: 0 0 0 var(--keyh-edge);
    color: var(--flag-ink);
}

/* ─── sections ────────────────────────────────────────────────────────── */
.site main > section {
    border-top: 1px solid var(--seam-dark);
    box-shadow: inset 0 1px 0 var(--seam-light);
}

.site main > section.hero {
    border-top: 0;
    box-shadow: none;
}

.site .section-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px 64px;
    align-items: end;
    margin-bottom: 48px;
}

/* The problem: a full glass field */
.site .statement {
    background: var(--glass);
    color: var(--readout);
    padding: 112px 0;
}

.site .statement-grid {
    display: grid;
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 72px;
    align-items: end;
}

.site .statement-text {
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 400;
    font-stretch: 92%;
    line-height: 1.22;
    letter-spacing: -0.02em;
    color: var(--readout-2);
}

.site .statement-text strong {
    font-weight: 650;
    color: var(--readout);
}

.site .stat-readout {
    font-family: var(--mono);
    font-size: 92px;
    line-height: 1;
    letter-spacing: -0.06em;
    color: var(--mind);
    font-variant-numeric: tabular-nums;
}

.site .stat-readout small {
    font-size: 28px;
    color: var(--mind);
    letter-spacing: 0;
}

.site .stat-line {
    padding-top: 18px;
    border-top: 1px solid var(--glass-line);
}

.site .stat-line figcaption {
    margin-top: 12px;
    font-size: 15px;
    line-height: 1.5;
    color: var(--readout-2);
}

.site .stat-source {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--readout-3);
}

/* How it works: one rack, three bays */
.site .channels {
    padding: 120px 0;
}

.site .rack {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-radius: 6px;
    background-color: var(--housing-hi);
    background-image: var(--grain);
    box-shadow: inset 0 1px 0 var(--seam-light), 0 0 0 1px var(--seam-dark), 0 2px 0 var(--seam-light);
}

.site .bay {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 28px 26px 30px;
}

.site .bay + .bay {
    border-left: 1px solid var(--seam-dark);
    box-shadow: inset 1px 0 0 var(--seam-light);
}

.site .bay.treat .ch-name { color: var(--treat-ink); }
.site .bay.mind .ch-name { color: var(--mind-ink); }
.site .bay.brain .ch-name { color: var(--brain-ink); }
.site .bay.body .ch-name { color: var(--body-ink); }

.site .bay h3 {
    font-size: 24px;
    font-weight: 640;
    font-stretch: 92%;
    line-height: 1.15;
    letter-spacing: -0.015em;
}

.site .bay > p {
    font-size: 16px;
    color: var(--ink-2);
}

.site .bay .text-link {
    margin-top: auto;
    padding-top: 6px;
}

.site .chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.site .chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 9px;
    border-radius: 6px;
    background: var(--housing);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.14), 0 1px 0 var(--seam-light);
    font-size: 13px;
    font-weight: 500;
    color: var(--ink-2);
}

.site .chip b {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--mind-ink);
}

.site .spec-list {
    border-top: 1px solid var(--seam-dark);
}

.site .spec-list div {
    display: grid;
    gap: 3px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--seam-dark);
    font-size: 15px;
}

.site .spec-list dt {
    font-weight: 600;
}

.site .spec-list dd {
    font-family: var(--mono);
    font-size: 11.5px;
    line-height: 1.5;
    color: var(--engrave);
}

.site .output {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 28px;
    align-items: center;
    margin-top: 36px;
    padding: 0 30px;
}

.site .patch {
    display: block;
    width: 100%;
    height: 72px;
    overflow: visible;
}

.site .patch path {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
}

.site .p-mind { stroke: var(--mind-ink); }
.site .p-brain { stroke: var(--brain-ink); }
.site .p-body { stroke: var(--body-ink); }
.site .p-treat { stroke: var(--treat-ink); }
.site .p-out { stroke: var(--ink); stroke-width: 5; }

.site .output p {
    font-size: 17px;
    color: var(--ink-2);
    max-width: 70ch;
}

.site .output strong {
    color: var(--ink);
    font-weight: 620;
}

/* Treatment timeline */
.site .trend {
    padding: 120px 0;
    background-color: var(--housing-lo);
    background-image: var(--grain);
}

.site .scope .bezel-top {
    flex-wrap: wrap;
}

.site .scope-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 22px;
    font-size: 13px;
    color: var(--ink-2);
}

.site .scope-glass {
    padding: 22px 26px 14px;
}

.site .scope-glass svg {
    display: block;
    width: 100%;
    height: auto;
}

.site .scope-glass .plot-portrait {
    display: none;
}

.site .rx-flag {
    fill: var(--glass-2);
    stroke: var(--treat);
    stroke-width: 1;
}

.site .end-labels text {
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 650;
}

.site .t-body { fill: var(--body); }
.site .t-mind { fill: var(--mind); }

.site .scope-note {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 20px;
    padding: 16px 8px 4px;
    font-size: 15px;
    color: var(--ink-2);
}

.site .scope-note .ro-label {
    color: var(--engrave);
    padding-top: 3px;
}

/* Plot-on-view: armed by JS, plotted once. */
.site .scope.is-armed polyline[data-line] {
    stroke-dasharray: var(--len);
    stroke-dashoffset: var(--len);
}

.site .scope.is-armed .rx,
.site .scope.is-armed .end-labels,
.site .scope.is-armed .sessions rect:nth-child(n + 2) {
    opacity: 0;
}

.site .scope.is-plotted polyline[data-line] {
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1.8s linear;
}

.site .scope.is-plotted .sessions rect:nth-child(2),
.site .scope.is-plotted .rx {
    opacity: 1;
    transition: opacity 0s 0.9s;
}

.site .scope.is-plotted .sessions rect:nth-child(3),
.site .scope.is-plotted .end-labels {
    opacity: 1;
    transition: opacity 0s 1.8s;
}

/* Sample reports */
.site .reports {
    padding: 120px 0;
}

.site .tray {
    margin-top: 28px;
    padding: 20px 22px 26px;
    border-radius: 16px;
    background: var(--housing-lo);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.18), 0 1px 0 var(--seam-light);
}

.site .tray-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.site .input-plate {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
}

.site .input-plate .engrave {
    padding: 3px 7px 2px;
    border: 1px solid var(--seam-dark);
    border-radius: 4px;
    box-shadow: inset 0 1px 0 var(--seam-light);
}

.site .sheets {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.site .sheet figcaption {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 2px 10px;
    margin-top: 14px;
    font-size: 14px;
    line-height: 1.45;
}

.site .sheet .pg {
    grid-row: span 2;
    font-family: var(--mono);
    font-size: 11px;
    padding-top: 2px;
    color: var(--engrave);
}

.site .sheet figcaption span:last-child {
    color: var(--ink-2);
}

.site .sheet-paper {
    aspect-ratio: 850 / 1020;
    background: #ffffff;
    border-radius: 3px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.22), 0 14px 26px -16px rgba(0, 0, 0, 0.45);
    transition: transform 160ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 160ms;
}

.site .sheet:hover .sheet-paper {
    transform: translateY(-4px);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.22), 0 22px 30px -16px rgba(0, 0, 0, 0.5);
}

/* media slots: the logo plate shows until the real image has loaded */
.site .media-slot {
    position: relative;
    overflow: hidden;
}

.site .media-slot > img.media {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
    -o-object-position: top center;
       object-position: top center;
}

.site.js .media-slot > img.media:not(.is-loaded) {
    opacity: 0;
}

.site .media-slot > .media.is-missing {
    display: none;
}

.site .media-fallback {
    position: absolute;
    inset: 0;
    display: none;
    place-items: center;
    background: var(--well);
}

.site.js .media-slot > img.media:not(.is-loaded) ~ .media-fallback {
    display: grid;
}

.site .media-fallback img {
    width: 56px;
    opacity: 0.35;
}

/* In-app readout */
.site .app-readout {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    margin-top: 28px;
    padding: 40px;
    border-radius: 16px;
    background: var(--glass);
    color: var(--readout);
    box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.7), 0 1px 0 var(--seam-light);
}

.site .app-readout h3 {
    font-size: 22px;
    font-weight: 620;
    letter-spacing: -0.01em;
}

.site .metric-list {
    margin-top: 22px;
    border-top: 1px solid var(--glass-line);
}

.site .metric-list > div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2px 20px;
    padding: 16px 0;
    border-bottom: 1px solid var(--glass-line);
}

.site .metric-list dt {
    font-weight: 600;
    font-size: 15px;
}

.site .metric-list dd {
    grid-row: span 2;
    align-self: center;
    font-family: var(--mono);
    font-size: 30px;
    letter-spacing: -0.04em;
    font-variant-numeric: tabular-nums;
}

.site .metric-list p {
    font-size: 14px;
    color: var(--readout-2);
}

.site .m-brain dd { color: var(--brain); }
.site .m-body dd { color: var(--body); }
.site .m-mind dd { color: var(--mind); }
.site .m-flag dt,
.site .m-flag dd { color: var(--flag); }

.site .app-shots {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    align-self: start;
}

.site .app-shot {
    height: 520px;
    border-radius: 10px;
    background: var(--glass-2);
    box-shadow: 0 0 0 1px var(--glass-line);
}

/* Proof */
.site .proof {
    padding: 120px 0;
}

.site .proof-grid {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 72px;
    align-items: center;
}

.site .proof-photo {
    aspect-ratio: 4 / 5;
    border-radius: 14px;
    box-shadow: 0 0 0 6px var(--housing-hi), 0 0 0 7px var(--seam-dark), 0 30px 50px -30px var(--cast);
}

.site .quote p {
    font-size: clamp(28px, 2.9vw, 42px);
    font-weight: 500;
    font-stretch: 94%;
    line-height: 1.18;
    letter-spacing: -0.02em;
    text-indent: -0.42em;
}

.site .quote footer {
    margin-top: 20px;
    font-size: 15px;
    color: var(--ink-2);
}

.site .proof-plate {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 44px;
    border-top: 1px solid var(--seam-dark);
    box-shadow: inset 0 1px 0 var(--seam-light);
}

.site .proof-plate div {
    padding: 18px 20px 0 0;
}

.site .proof-plate dt {
    font-size: 30px;
    font-weight: 650;
    font-stretch: 90%;
    letter-spacing: -0.02em;
}

.site .proof-plate dd {
    margin-top: 2px;
    font-size: 15px;
    color: var(--ink-2);
}

.site .proof-team {
    margin-top: 28px;
    padding-top: 18px;
    border-top: 1px dashed var(--seam-dark);
    font-size: 15px;
    color: var(--ink-2);
    max-width: 60ch;
}

/* Request: the closing band sits on the recessed housing tone */
.site .request {
    padding: 112px 0;
    background-color: var(--housing-lo);
    background-image: var(--grain);
}

.site .request-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 72px;
    align-items: center;
}

.site .request .h2 {
    font-size: clamp(34px, 3.8vw, 54px);
}

.site .request .lead {
    margin-top: 20px;
}

.site .request-alt strong {
    color: var(--ink);
    font-weight: 620;
}

.site .request-alt p {
    max-width: 40ch;
}

.site .request-alt {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px 24px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--seam-dark);
    box-shadow: inset 0 1px 0 var(--seam-light);
    font-size: 16px;
    color: var(--ink-2);
}

/* ─── forms ───────────────────────────────────────────────────────────── */
.site .module {
    padding: 30px 32px 32px;
    border-radius: 18px;
    background-color: var(--housing-hi);
    background-image: var(--grain);
    color: var(--ink);
    box-shadow: inset 0 1px 0 var(--seam-light), 0 0 0 1px var(--seam-dark), 0 30px 60px -30px rgba(0, 0, 0, 0.45);
}

.site .module-label {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 22px;
}

.site .form {
    display: grid;
    gap: 18px;
}

.site .field {
    display: grid;
    gap: 8px;
    min-width: 0;
}

.site .field input,
.site .field select,
.site .field textarea {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid var(--seam-dark);
    border-radius: 8px;
    background: var(--well);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    box-shadow: inset 0 2px 3px rgba(0, 0, 0, 0.08);
    caret-color: var(--key);
}

.site .field textarea {
    resize: vertical;
    line-height: 1.5;
}

.site .field select {
    -webkit-appearance: none;
       -moz-appearance: none;
            appearance: none;
    padding-right: 40px;
    background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%);
    background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
    background-size: 6px 6px;
    background-repeat: no-repeat;
}

.site .field ::-moz-placeholder {
    color: var(--placeholder);
    opacity: 1;
}

.site .field ::placeholder {
    color: var(--placeholder);
    opacity: 1;
}

.site .field input:focus-visible,
.site .field select:focus-visible,
.site .field textarea:focus-visible {
    outline: 2px solid var(--key);
    outline-offset: 1px;
    border-color: transparent;
}

.site .field [aria-invalid="true"] {
    border-color: var(--flag-ink);
    box-shadow: inset 0 0 0 1px var(--flag-ink);
}

.site .form-status {
    font-size: 14px;
    line-height: 1.5;
    min-height: 0;
}

.site .form-status:empty {
    display: none;
}

.site .form-status.error { color: var(--flag-ink); }
.site .form-status.success { color: var(--body-ink); }
.site .form-status.info { color: var(--ink); }

.site .form-status a {
    color: var(--key);
    font-weight: 600;
}

/* ─── footer ──────────────────────────────────────────────────────────── */
.site .site-footer {
    padding: 52px 0 44px;
    background: var(--housing);
    border-top: 1px solid var(--seam-dark);
    box-shadow: inset 0 1px 0 var(--seam-light);
}

.site .footer-inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 24px 48px;
    align-items: center;
}

.site .footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
}

.site .footer-links a,
.site .social-link {
    font-size: 14.5px;
    color: var(--ink-2);
    text-decoration: none;
}

.site .footer-links a:hover,
.site .social-link:hover {
    color: var(--ink);
    text-decoration: underline;
}

.site .social-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.site .footer-inner small {
    grid-column: 1 / -1;
    padding-top: 22px;
    border-top: 1px dashed var(--seam-dark);
    font-size: 13px;
    color: var(--engrave);
}

/* ─── overview dialog ─────────────────────────────────────────────────── */
.site .overview-dialog {
    width: min(1100px, calc(100% - 32px));
    padding: 12px;
    border: 0;
    border-radius: 16px;
    background: var(--glass);
}

.site .overview-dialog::backdrop {
    background: rgba(10, 12, 10, 0.8);
}

.site .overview-dialog video {
    display: block;
    width: 100%;
    border-radius: 10px;
}

.site .overview-dialog [data-overview-close] {
    position: absolute;
    top: 18px;
    right: 18px;
    z-index: 1;
}

/* ═══ standalone pages: /request-demo.html, /assessments.html ═════════ */
.site .page-main {
    padding: 64px 0 120px;
}

.site .page-title {
    font-size: clamp(40px, 4.4vw, 64px);
    font-weight: 660;
    font-stretch: 86%;
    line-height: 1;
    letter-spacing: -0.035em;
}

.site .page-title + .lead {
    margin-top: 22px;
}

/* request-demo */
.site .demo-grid {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 72px;
    align-items: start;
}

.site .demo-aside {
    position: sticky;
    top: 108px;
    display: grid;
    gap: 40px;
}

.site .steps {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--seam-dark);
}

.site .steps li {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px dashed var(--seam-dark);
}

.site .step-num {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 7px;
    background: var(--glass);
    color: var(--mind);
    font-family: var(--mono);
    font-size: 14px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.6);
}

.site .steps strong {
    display: block;
    font-weight: 620;
}

.site .steps li span:not(.step-num) {
    font-size: 15px;
    color: var(--ink-2);
}

.site .privacy-note {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--seam-dark);
    border-radius: 8px;
    background: var(--housing-hi);
    box-shadow: inset 0 1px 0 var(--seam-light);
    font-size: 14.5px;
    color: var(--ink-2);
}

.site .card {
    padding: 34px 36px 36px;
    border-radius: 18px;
    background-color: var(--housing-hi);
    background-image: var(--grain);
    box-shadow: inset 0 1px 0 var(--seam-light), 0 0 0 1px var(--seam-dark), 0 28px 50px -32px var(--cast);
}

.site .demo-form h2 {
    font-weight: 640;
    margin-bottom: 4px;
}

.site fieldset {
    margin: 0;
    padding: 24px 0 0;
    border: 0;
    border-top: 1px solid var(--seam-dark);
    display: grid;
    gap: 18px;
    min-width: 0;
}

.site legend {
    float: left;
    width: 100%;
    margin-bottom: 18px;
    padding: 0;
    color: var(--ink);
}

.site legend + * {
    clear: both;
}

.site .grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.site .req {
    color: var(--flag-ink);
}

.site .opt {
    text-transform: none;
    letter-spacing: 0;
    font-stretch: 100%;
    font-weight: 400;
}

.site .chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.site .chip-opt {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 40px;
    padding: 0 14px 0 12px;
    border-radius: 7px;
    background: var(--keyh);
    color: var(--ink-2);
    font-size: 14.5px;
    cursor: pointer;
    box-shadow: 0 2px 0 var(--keyh-edge), 0 6px 10px -8px var(--cast);
    transition: transform 70ms steps(2, end), box-shadow 70ms steps(2, end);
}

.site .field .chip-opt {
    font-family: var(--sans);
    font-size: 14.5px;
    font-stretch: 100%;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
    text-shadow: none;
    color: var(--ink-2);
}

.site .field .chip-opt:has(input:checked) {
    color: var(--ink);
}

.site .chip-opt::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--led-off);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.35);
}

.site .chip-opt input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.site .chip-opt:has(input:checked) {
    color: var(--ink);
    transform: translateY(2px);
    box-shadow: 0 0 0 var(--keyh-edge), inset 0 1px 2px rgba(0, 0, 0, 0.12);
}

.site .chip-opt:has(input:checked)::before {
    background: var(--body);
}

.site .chip-opt:has(input:focus-visible) {
    outline: 2px solid var(--key);
    outline-offset: 2px;
}

.site .hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.site .form-footer {
    display: grid;
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--seam-dark);
}

.site .consent {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 14.5px;
    color: var(--ink-2);
}

.site .consent input {
    width: 18px;
    height: 18px;
    margin-top: 3px;
    accent-color: var(--key);
}

.site .consent a {
    color: var(--key);
}

.dark .site .consent a {
    color: #8fb0ff;
}

.site .success-card {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 16px 20px;
    align-items: start;
}

.site .success-card > :not(.success-icon) {
    grid-column: 2;
}

.site .success-card > .success-icon {
    grid-row: span 3;
}

.site .success-card h2 {
    font-weight: 640;
}

.site .success-icon {
    display: grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 10px;
    background: var(--glass);
    color: var(--body);
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.6);
}

/* assessments */
.site .lib-intro {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
}

.site .stat-tiles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    padding: 0;
    border-radius: 14px;
    overflow: hidden;
    background: var(--glass-line);
    box-shadow: 0 0 0 10px var(--housing-hi), 0 0 0 11px var(--seam-dark), inset 0 3px 8px rgba(0, 0, 0, 0.7);
    margin: 11px;
}

.site .stat-tile {
    display: grid;
    gap: 6px;
    align-content: start;
    padding: 18px 20px;
    background: var(--glass);
    color: var(--readout-2);
    font-size: 13px;
    line-height: 1.4;
}

.site .stat-tile strong {
    font-family: var(--mono);
    font-size: 34px;
    font-weight: 500;
    letter-spacing: -0.05em;
    line-height: 1;
    color: var(--mind);
    font-variant-numeric: tabular-nums;
}

.site .filter-bar {
    display: grid;
    gap: 14px;
    margin: 64px 0 8px;
    padding: 20px 22px;
    border-radius: 14px;
    background: var(--housing-lo);
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.14), 0 1px 0 var(--seam-light);
}

.site .filter-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.site .filter-label {
    min-width: 120px;
}

.site .filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 36px;
    padding: 0 12px 0 10px;
    border: 0;
    border-radius: 7px;
    background: var(--keyh);
    color: var(--ink-2);
    font-family: var(--sans);
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 2px 0 var(--keyh-edge), 0 5px 8px -7px var(--cast);
    transition: transform 70ms steps(2, end), box-shadow 70ms steps(2, end);
}

.site .filter-btn::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--led-off);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.35);
}

.site .filter-btn[aria-pressed="true"] {
    color: var(--ink);
    font-weight: 600;
    transform: translateY(2px);
    box-shadow: 0 0 0 var(--keyh-edge), inset 0 1px 2px rgba(0, 0, 0, 0.12);
}

.site .filter-btn[aria-pressed="true"]::before {
    background: var(--mind);
}

.site .filter-btn span {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--engrave);
}

.site .filter-sep {
    width: 1px;
    height: 24px;
    margin: 0 6px;
    background: var(--seam-dark);
}

.site .filter-count {
    margin-left: auto;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--engrave);
}

.site .lib-group {
    margin-top: 48px;
}

.site .lib-group-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--ink);
}

.site .lib-group-head h2 {
    font-size: 26px;
    font-weight: 640;
    font-stretch: 92%;
    letter-spacing: -0.015em;
}

.site .lib-group-head span {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--engrave);
}

.site .lib-grid {
    display: grid;
}

.site .lib-card {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 5fr) minmax(170px, 2fr) 110px;
    grid-template-areas: 'name desc tags meta';
    gap: 6px 28px;
    align-items: baseline;
    padding: 16px 0;
    border-bottom: 1px solid var(--seam-dark);
    box-shadow: 0 1px 0 var(--seam-light);
}

.site .lib-card h3 {
    grid-area: name;
    font-size: 17px;
    font-weight: 620;
    line-height: 1.35;
}

.site .lib-card p {
    grid-area: desc;
    font-size: 15px;
    line-height: 1.5;
    color: var(--ink-2);
}

.site .lib-card .tags {
    grid-area: tags;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.site .lib-card-meta {
    grid-area: meta;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--engrave);
    text-align: right;
}

.site .lib-card-meta span {
    display: block;
}

.site .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-stretch: 115%;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink-2);
}

.site .tag::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--engrave);
}

.site .tag-mind { color: var(--mind-ink); }
.site .tag-mind::before { background: var(--mind); }
.site .tag-brain { color: var(--brain-ink); }
.site .tag-brain::before { background: var(--brain); }
.site .tag-clin { color: var(--body-ink); }
.site .tag-clin::before { background: var(--body); }

.site .lib-empty {
    display: grid;
    gap: 16px;
    justify-items: start;
    margin-top: 48px;
    padding: 32px;
    border: 1px dashed var(--seam-dark);
    border-radius: 14px;
}

.site .cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    margin-top: 96px;
    padding: 44px 48px;
    border-radius: 18px;
    background: var(--housing-lo);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.18), 0 1px 0 var(--seam-light);
}

.site .cta-panel h2 {
    font-size: clamp(28px, 2.8vw, 38px);
    font-weight: 640;
    font-stretch: 90%;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 10px;
}

.site .cta-panel p {
    max-width: 560px;
    font-size: 17px;
    color: var(--ink-2);
}

.site .cta-panel .key-primary {
    flex: none;
}

/* ─── responsive ──────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
    .site .nav-links {
        display: none;
    }

    .site .rack {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site .bay:nth-child(3) {
        border-left: 0;
        box-shadow: none;
    }

    .site .bay:nth-child(n + 3) {
        border-top: 1px solid var(--seam-dark);
    }

    .site .hero-grid,
    .site .proof-grid,
    .site .request-panel,
    .site .demo-grid,
    .site .lib-intro {
        grid-template-columns: minmax(0, 1fr);
        gap: 48px;
    }

    .site .hero-grid {
        grid-template-areas: 'copy' 'inst' 'spec';
    }

    .site .hero .lead,
    .site .spec-plate {
        max-width: 640px;
    }

    .site .demo-aside {
        position: static;
    }

    .site .app-readout {
        grid-template-columns: minmax(0, 1fr);
    }

    .site .proof-photo {
        max-width: 460px;
    }

    .site .lib-card {
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-areas: 'name meta' 'desc desc' 'tags tags';
    }
}

@media (max-width: 860px) {
    .site .container {
        width: min(1240px, calc(100% - 48px));
    }

    .site .section-head,
    .site .statement-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 20px;
    }

    .site .statement-grid {
        gap: 40px;
    }

    .site .rack {
        grid-template-columns: minmax(0, 1fr);
    }

    .site .bay + .bay {
        border-left: 0;
        border-top: 1px solid var(--seam-dark);
        box-shadow: inset 0 1px 0 var(--seam-light);
    }

    .site .output {
        grid-template-columns: minmax(0, 1fr);
        padding: 0;
    }

    .site .patch {
        width: 200px;
    }

    .site .sheets {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site .scope-note {
        grid-template-columns: minmax(0, 1fr);
        gap: 6px;
    }

    .site .end-labels {
        display: none;
    }

    .site .footer-inner {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 600px) {
    .site .container {
        width: calc(100% - 32px);
    }

    .site .hero {
        padding: 36px 0 64px;
    }

    .site .hero-keys .key {
        flex: 1 1 100%;
    }

    .site .nav-inner {
        gap: 14px;
    }

    .site .nav-back {
        display: none;
    }

    .site .instrument,
    .site .scope {
        padding: 10px;
        border-radius: 16px;
    }

    .site .instrument .glass {
        height: 480px;
        padding: 16px;
    }

    .site .knob {
        display: none;
    }

    .site .controls {
        gap: 10px;
        padding: 12px 0 2px;
    }

    .site .selector button {
        font-size: 10px;
        font-stretch: 100%;
        letter-spacing: 0.04em;
    }

    .site .hold-key span {
        display: none;
    }

    .site .ro-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site .ro-grid > div:nth-child(3) {
        padding-left: 0;
    }

    .site .ro-big {
        font-size: 76px;
    }

    .site .body-readout {
        gap: 20px;
    }

    .site .statement,
    .site .channels,
    .site .trend,
    .site .reports,
    .site .proof,
    .site .request {
        padding: 72px 0;
    }

    .site .bay {
        padding: 24px 20px 26px;
    }

    .site .stat-readout {
        font-size: 72px;
    }

    .site .scope-glass {
        padding: 12px 10px 6px;
    }

    .site .scope-glass svg:first-child {
        display: none;
    }

    .site .scope-glass .plot-portrait {
        display: block;
    }

    .site .tray {
        padding: 16px 14px 20px;
    }

    .site .sheets {
        gap: 16px;
    }

    .site .app-readout {
        padding: 24px 20px;
    }

    .site .app-shot {
        height: 340px;
    }

    .site .proof-plate dt {
        font-size: 24px;
    }

    .site .module,
    .site .card {
        padding: 24px 20px 24px;
    }

    .site .grid-2 {
        grid-template-columns: minmax(0, 1fr);
    }

    .site .cta-panel {
        flex-direction: column;
        align-items: flex-start;
        padding: 32px 24px;
    }

    .site .filter-label {
        min-width: 0;
        width: 100%;
    }

    .site .filter-count {
        margin-left: 0;
        width: 100%;
    }
}

@media (max-width: 420px) {
    .site .nav-demo {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site *,
    .site *::before,
    .site *::after {
        animation: none !important;
        transition: none !important;
    }
}