/* SphereHarness home page, 1.3.8 redesign "Exploded view" (2026-10-16, docs/landing-redesign.md).
   Loaded by Pages/Index.cshtml only, after tokens.css + site.css. Everything is scoped to body.lp-body, so the rest of
   the site keeps the 1.3.6 tokens. The landing palette is set by re-pointing the shared tokens (--paper, --surface,
   --accent ...) inside the scope, so the shared parts (header, footer, buttons, step trace, data-flow diagram, parts
   list) follow it without copies, and adds two of its own: --lp-cyan (probe cyan: 3D edges, data lines, highlights)
   and --lp-bg-2 (alternate sections).
   Rules: molten orange = action, running and focus only; probe cyan = information and geometry; every text colour
   meets WCAG AA on its ground in both themes; no layout depends on script; reduced motion = no movement. */

/* ---------------------------------------------------------------- palette */
body.lp-body {
    --paper: #070a12;
    --paper-lift: #111827;
    --surface: #0f1522;
    --surface-raised: #141b2b;
    --surface-sunken: #05070d;
    --line: #1c2536;
    --line-strong: #46536a;
    --ink: #eef2f8;
    --ink-muted: #9aa7bb;
    --accent: #ff6b2c;
    --on-accent: #0a0d14;
    --accent-ink: #ff9361;
    --accent-soft: #2b160d;
    --success: #a3e635;
    --success-soft: #1a2a0a;
    --shadow-panel: 0 1px 0 rgba(255,255,255,0.04) inset, 0 30px 60px -30px rgba(0,0,0,0.8);
    --ground: radial-gradient(120% 80% at 50% 0%, #0f1626 0%, #070a12 70%);
    --lp-bg-2: #0a0f1b;
    --lp-cyan: #4de3ff;
    --lp-cyan-ink: #7ce9ff;
    --lp-cyan-soft: rgba(77, 227, 255, 0.10);
    --lp-glow-a: rgba(255, 107, 44, 0.20);
    --lp-glow-b: rgba(77, 227, 255, 0.16);
    --lp-grid: rgba(148, 170, 210, 0.07);
    --lp-radius: 16px;
    --lp-radius-sm: 10px;
    --lp-display: 800;
    background: var(--paper);
    color: var(--ink);
}
[data-theme="light"] body.lp-body {
    --paper: #f5f7fb;
    --paper-lift: #ffffff;
    --surface: #ffffff;
    --surface-raised: #ffffff;
    --surface-sunken: #eef1f7;
    --line: #dde2ec;
    --line-strong: #8a94a6;
    --ink: #0b1220;
    --ink-muted: #475266;
    --accent: #e2561c;
    --on-accent: #0b1220;
    --accent-ink: #a8400f;
    --accent-soft: #fde6da;
    --success: #3f6212;
    --success-soft: #e7f5cf;
    --shadow-panel: 0 1px 0 rgba(11,18,32,0.04), 0 24px 48px -28px rgba(11,18,32,0.35);
    --ground: radial-gradient(120% 80% at 50% 0%, #ffffff 0%, #f5f7fb 70%);
    --lp-bg-2: #eceff6;
    --lp-cyan: #0891b2;
    --lp-cyan-ink: #00778f;
    --lp-cyan-soft: rgba(8, 145, 178, 0.09);
    --lp-glow-a: rgba(226, 86, 28, 0.13);
    --lp-glow-b: rgba(8, 145, 178, 0.14);
    --lp-grid: rgba(30, 50, 90, 0.07);
}
html:has(body.lp-body) { background: #070a12; }
html[data-theme="light"]:has(body.lp-body) { background: #f5f7fb; }

.lp-body ::selection { background: var(--lp-cyan-soft); color: var(--ink); }
.lp-body :focus-visible { outline: 2px solid var(--lp-cyan); outline-offset: 3px; }

/* ---------------------------------------------------------------- shared parts, re-tuned */
.lp-body .site-header { background: color-mix(in srgb, var(--paper) 72%, transparent); border-bottom-color: color-mix(in srgb, var(--line) 70%, transparent); }
.lp-body .sh-btn { border-radius: var(--lp-radius-sm); }
.lp-body .sh-btn-primary { box-shadow: 0 0 0 0 var(--lp-glow-a); transition: box-shadow 220ms var(--ease-out), transform 220ms var(--ease-out), background-color 160ms var(--ease-out); }
.lp-body .sh-btn-primary:hover { box-shadow: 0 10px 30px -8px var(--lp-glow-a), inset 0 0 0 100px rgba(255,255,255,0.10); transform: translateY(-1px); }
.lp-body .sh-btn:not(.sh-btn-primary):not(.sh-btn-quiet) { background: color-mix(in srgb, var(--surface) 60%, transparent); }
.lp-body .sh-btn:not(.sh-btn-primary):not(.sh-btn-quiet):hover { border-color: var(--lp-cyan); }
.lp-body .sh-badge-host { border-radius: 999px; padding: 0 10px; border-color: var(--line-strong); background: color-mix(in srgb, var(--surface) 50%, transparent); }
.lp-body .card { border-radius: var(--lp-radius); }
.lp-body .section + .section { border-top: 0; }
.lp-body .section-head h2 { font-weight: var(--lp-display); font-stretch: 122%; letter-spacing: -.03em; }
.lp-body .learn-more { color: var(--lp-cyan-ink); }

.lp-eyebrow, .section-head .lp-eyebrow { display: inline-flex; align-items: center; gap: var(--space-3); font-family: var(--font-mono); font-size: 12px; line-height: 16px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--lp-cyan-ink); }
.lp-eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.lp-alt { background: var(--lp-bg-2); }
.lp-section { position: relative; }

/* ---------------------------------------------------------------- hero */
.lp-hero { position: relative; overflow: hidden; isolation: isolate; padding: clamp(40px, 7vw, 96px) 0 clamp(48px, 7vw, 104px); }
.lp-hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background:
        radial-gradient(38% 46% at 72% 42%, var(--lp-glow-b), transparent 70%),
        radial-gradient(30% 40% at 18% 20%, var(--lp-glow-a), transparent 70%),
        linear-gradient(var(--lp-grid) 1px, transparent 1px) 0 0 / 48px 48px,
        linear-gradient(90deg, var(--lp-grid) 1px, transparent 1px) 0 0 / 48px 48px;
    -webkit-mask-image: radial-gradient(120% 90% at 50% 30%, #000 45%, transparent 100%);
    mask-image: radial-gradient(120% 90% at 50% 30%, #000 45%, transparent 100%); }
.lp-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: center; }
.lp-hero-copy { display: grid; gap: 22px; justify-items: start; min-width: 0; }
.lp-tag { display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: color-mix(in srgb, var(--surface) 70%, transparent);
    font-family: var(--font-mono); font-size: 12px; line-height: 18px; font-weight: 500; color: var(--ink-muted); }
.lp-tag-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 0 color-mix(in srgb, var(--success) 60%, transparent); animation: lp-pulse 2.4s var(--ease-out) infinite; }
@keyframes lp-pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--success) 55%, transparent); } 70%, 100% { box-shadow: 0 0 0 9px transparent; } }
.lp-hero h1 { font-size: clamp(2.3rem, 3.9vw, 3.75rem); line-height: 1.02; font-weight: var(--lp-display); font-stretch: 118%; letter-spacing: -.035em; text-wrap: balance; }
.lp-hero h1 em { font-style: normal; color: var(--lp-cyan-ink); background: linear-gradient(var(--accent), var(--accent)) left 100% / 100% 0.09em no-repeat; padding-bottom: .02em; }
.lp-hero .lead { font-size: 18px; line-height: 29px; max-width: 60ch; }
.lp-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 14px; }
.lp-body .lp-link { font-weight: 600; font-size: 15px; color: var(--ink); text-decoration: underline; text-decoration-color: var(--lp-cyan); text-underline-offset: 5px; padding: 12px 4px; }
.lp-body .lp-link:hover { color: var(--lp-cyan-ink); }
.lp-hero .hosts { padding-top: 2px; }

/* the stage: SVG drawing first, WebGL canvas over it once ready */
.lp-stage { margin: 0; position: relative; min-width: 0; }
.lp-stage-view { position: relative; aspect-ratio: 1 / 1.02; width: 100%; max-width: 620px; margin-inline: auto; border-radius: 24px;
    background: radial-gradient(60% 55% at 50% 48%, var(--lp-cyan-soft), transparent 72%); }
.lp-stage-view::before, .lp-stage-view::after { content: ""; position: absolute; width: 22px; height: 22px; border: 1.5px solid var(--line-strong); pointer-events: none; }
.lp-stage-view::before { left: 0; top: 0; border-right: 0; border-bottom: 0; border-top-left-radius: 6px; }
.lp-stage-view::after { right: 0; bottom: 0; border-left: 0; border-top: 0; border-bottom-right-radius: 6px; }
.lp-stage-svg { position: absolute; inset: 6% 6% 4%; width: 88%; height: 90%; transition: opacity 600ms var(--ease-out); }
.lp-stage-svg .f-top { fill: color-mix(in srgb, var(--surface-raised) 85%, var(--lp-cyan) 15%); stroke: var(--lp-cyan); stroke-width: 1.3; }
.lp-stage-svg .f-side { fill: var(--surface); stroke: var(--lp-cyan); stroke-width: 1.1; }
.lp-stage-svg .f-side2 { fill: color-mix(in srgb, var(--surface) 70%, var(--paper)); stroke: var(--lp-cyan); stroke-width: 1.1; }
.lp-stage-svg .f-bolt { fill: var(--surface-raised); stroke: var(--lp-cyan); stroke-width: 1; }
.lp-stage-svg .hole { fill: var(--paper); stroke: var(--lp-cyan); stroke-width: 1; }
.lp-stage-svg .gear { stroke-dasharray: 7 4; stroke-width: 2; }
.lp-stage-svg .pitch { fill: none; stroke: var(--accent); stroke-width: 1; stroke-dasharray: 10 4 2 4; }
.lp-stage-svg .axis { fill: none; stroke: var(--line-strong); stroke-width: 1; stroke-dasharray: 12 4 2 4; }
.lp-stage-canvas { position: absolute; inset: 0; opacity: 0; -webkit-mask-image: radial-gradient(closest-side, #000 72%, transparent); mask-image: radial-gradient(closest-side, #000 72%, transparent); transition: opacity 700ms var(--ease-out); cursor: grab; touch-action: pan-y; border-radius: inherit; }
.lp-stage-canvas:active { cursor: grabbing; }
.lp-stage-canvas canvas { display: block; width: 100% !important; height: 100% !important; }
.lp-stage.is-3d .lp-stage-canvas { opacity: 1; }
.lp-stage.is-3d .lp-stage-svg { opacity: 0; }
.lp-hud { position: absolute; display: grid; gap: 2px; font-family: var(--font-mono); font-size: 11px; line-height: 15px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-muted); pointer-events: none; }
.lp-hud span:first-child { color: var(--ink); }
.lp-hud-tl { left: 34px; top: 10px; }
.lp-hud-br { right: 34px; bottom: 10px; text-align: right; }
.lp-hud-hint { display: none; }
.lp-stage.is-3d .lp-hud-hint { display: block; }
[data-stage-explode] { font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- proof strip */
.lp-proof { border-block: 1px solid var(--line); background: color-mix(in srgb, var(--lp-bg-2) 60%, transparent); }
.lp-proof-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.lp-proof-list li { display: grid; gap: 4px; padding: 22px 24px 22px 0; font-size: 14px; line-height: 21px; color: var(--ink-muted); }
.lp-proof-list li + li { padding-left: 24px; border-left: 1px solid var(--line); }
.lp-proof-k { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink); font-weight: 600; }

/* ---------------------------------------------------------------- demo */
.lp-split { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.lp-split .section-head { margin-bottom: 0; }
.lp-body .demo-panel { border-radius: var(--lp-radius); padding: 18px; background:
    linear-gradient(var(--surface-raised), var(--surface-raised)) padding-box,
    linear-gradient(135deg, color-mix(in srgb, var(--lp-cyan) 55%, transparent), var(--line) 40%, var(--line) 60%, color-mix(in srgb, var(--accent) 55%, transparent)) border-box;
    border: 1px solid transparent; }
.lp-body .sh-cmd, .lp-body .sh-trace { border-radius: var(--lp-radius-sm); }
.lp-body .sh-step-running .sh-step-mark { box-shadow: 0 0 0 3px var(--lp-glow-a); }

/* ---------------------------------------------------------------- data flow */
.lp-flow-frame { padding: clamp(16px, 3vw, 32px); border: 1px solid var(--line); border-radius: 20px; background: var(--paper); position: relative; overflow: hidden; }
.lp-flow-frame::before { content: ""; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(var(--lp-grid) 1px, transparent 1px) 0 0 / 24px 24px, linear-gradient(90deg, var(--lp-grid) 1px, transparent 1px) 0 0 / 24px 24px; }
.lp-flow-frame .flow { position: relative; }
.lp-body .flow-node { border-radius: 12px; background: var(--surface); }
.lp-body .flow-pc { border: 1.5px solid var(--lp-cyan); box-shadow: 0 0 0 6px var(--lp-cyan-soft); }
.lp-body .flow-pc .flow-kicker { color: var(--lp-cyan-ink); }
.lp-body .flow-ai { border-color: color-mix(in srgb, var(--accent) 70%, var(--line-strong)); }
.lp-body .flow-link > span { background: var(--paper); }
.lp-body .privacy-lead { border-top-color: var(--line); }

/* ---------------------------------------------------------------- video carousel */
.lp-row-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.lp-row-head .section-head { margin-bottom: 0; }
.lp-car-nav { display: flex; gap: 10px; flex: none; }
.lp-car-btn { width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); cursor: pointer; transition: border-color 160ms var(--ease-out), background-color 160ms var(--ease-out), opacity 160ms; }
.lp-car-btn:hover:not(:disabled) { border-color: var(--lp-cyan); background: var(--surface-raised); }
.lp-car-btn:disabled { opacity: .35; cursor: default; }
.lp-car { position: relative; }
.lp-car-track { list-style: none; margin: 0; padding: 4px 2px 18px; display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 2 * 20px) / 3); gap: 20px;
    overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; border-radius: 4px; }
.lp-car-track:focus-visible { outline-offset: 4px; }
.lp-car-slide { scroll-snap-align: start; display: grid; gap: 10px; align-content: start; min-width: 0; }
.lp-video { position: relative; aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden; background: var(--surface-sunken); border: 1px solid var(--line); }
.lp-video-facade { position: absolute; inset: 0; display: block; color: #fff; }
.lp-video-facade img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.01); transition: transform 500ms var(--ease-out), filter 300ms; }
.lp-video-facade::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(5, 7, 13, .55)); }
.lp-video-play { position: absolute; left: 50%; top: 50%; z-index: 1; width: 56px; height: 56px; margin: -28px 0 0 -28px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: var(--accent); color: var(--on-accent); box-shadow: 0 10px 30px -6px rgba(0,0,0,.6), 0 0 0 8px rgba(255,255,255,.12); transition: transform 220ms var(--ease-out); }
.lp-video-play svg { width: 22px; height: 22px; margin-left: 3px; }
.lp-video-facade:hover img { transform: scale(1.05); }
.lp-video-facade:hover .lp-video-play, .lp-video-facade:focus-visible .lp-video-play { transform: scale(1.08); }
.lp-video-facade:focus-visible { outline: 3px solid var(--lp-cyan); outline-offset: -3px; }
.lp-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.lp-video-title { font-size: 16px; line-height: 23px; font-weight: 650; text-wrap: pretty; }
.lp-video-date { font-family: var(--font-mono); font-size: 12px; line-height: 16px; color: var(--ink-muted); }
.lp-note { margin-top: 8px; font-size: 13px; line-height: 20px; color: var(--ink-muted); max-width: 90ch; }

/* ---------------------------------------------------------------- capabilities bento */
.lp-bento { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.lp-bento-wide { grid-column: span 2; }
.lp-cap { --mx: 50%; --my: 0%; position: relative; height: 100%; display: grid; grid-template-rows: auto auto 1fr auto; gap: 10px; padding: 24px; border-radius: var(--lp-radius); border: 1px solid var(--line);
    background: radial-gradient(420px circle at var(--mx) var(--my), var(--lp-cyan-soft), transparent 60%), var(--surface); color: inherit; text-decoration: none; overflow: hidden;
    transition: border-color 200ms var(--ease-out), transform 200ms var(--ease-out); }
.lp-body .lp-cap { color: var(--ink); }
.lp-cap:hover { border-color: color-mix(in srgb, var(--lp-cyan) 60%, var(--line)); transform: translateY(-2px); text-decoration: none; }
.lp-cap-icon { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; border: 1px solid var(--line); background: var(--paper); color: var(--lp-cyan-ink); }
.lp-cap h3 { font-size: 18px; line-height: 24px; font-weight: 700; margin-top: 6px; }
.lp-cap p { color: var(--ink-muted); font-size: 14.5px; line-height: 23px; max-width: 60ch; }
.lp-cap-go { color: var(--ink-muted); transition: transform 200ms var(--ease-out), color 160ms; }
.lp-cap:hover .lp-cap-go { color: var(--lp-cyan-ink); transform: translateX(4px); }
.lp-bento-wide .lp-cap h3 { font-size: 22px; line-height: 28px; font-stretch: 112%; }

/* ---------------------------------------------------------------- steps, screens, table, CTA */
.lp-body .steps::before { border-top-style: dashed; border-color: var(--line-strong); }
.lp-body .steps .balloon { width: 36px; height: 36px; background: var(--surface); border-color: var(--lp-cyan); color: var(--lp-cyan-ink); }
.lp-body .steps::before { top: 18px; }
.lp-body .steps li:first-child .balloon { border-color: var(--accent); color: var(--accent-ink); }
.lp-body .screen { box-shadow: var(--shadow-panel); }
.lp-body .bom { border-top-color: var(--line-strong); }
.lp-cta { position: relative; overflow: hidden; isolation: isolate; background: var(--paper); border-top: 1px solid var(--line); }
.lp-cta-glow { position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background: radial-gradient(40% 80% at 85% 100%, var(--lp-glow-a), transparent 70%), radial-gradient(40% 80% at 10% 0%, var(--lp-glow-b), transparent 70%); }
.lp-cta h2 { font-weight: var(--lp-display); font-stretch: 125%; letter-spacing: -.035em; }

/* ---------------------------------------------------------------- results (round 2: real outputs of our test runs) */
.lp-results-intro { padding: clamp(56px, 8vw, 96px) 0 8px; }
.lp-results-intro .section-head { margin-bottom: 24px; }
.lp-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.lp-body .lp-chip { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-strong); background: color-mix(in srgb, var(--surface) 70%, transparent);
    color: var(--ink); font-size: 14px; font-weight: 600; text-decoration: none; transition: border-color 160ms var(--ease-out), background-color 160ms var(--ease-out); }
.lp-body .lp-chip:hover { border-color: var(--lp-cyan); background: var(--lp-cyan-soft); }
.lp-show { scroll-margin-top: calc(var(--header-h) + 8px); }
.lp-show-head { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(24px, 4vw, 64px); align-items: end; margin-bottom: 32px; }
.lp-show-head .section-head { margin-bottom: 0; }
.lp-facts { margin: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.lp-facts > div { display: grid; grid-template-columns: minmax(120px, auto) minmax(0, 1fr); gap: 16px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--line); }
.lp-facts dt { font-family: var(--font-mono); font-size: 22px; line-height: 28px; font-weight: 600; color: var(--lp-cyan-ink); white-space: nowrap; }
.lp-facts dd { margin: 0; font-size: 14px; line-height: 21px; color: var(--ink-muted); }
.lp-show-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }
.lp-show-n1 { grid-template-columns: minmax(0, 1fr); }
.lp-show-n3 .lp-media-main:has(.lp-viewer, .lp-loop-box) { grid-row: span 2; }
.lp-media { margin: 0; display: grid; gap: 10px; align-content: start; min-width: 0; }
.lp-media figcaption { font-size: 13px; line-height: 20px; color: var(--ink-muted); }
.lp-loop-box, .lp-still { position: relative; display: block; width: 100%; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: radial-gradient(70% 70% at 50% 45%, var(--lp-cyan-soft), transparent 75%), var(--surface-sunken); }
/* Round 3 (owner 2026-10-17): a 3D result is shown the way the hero assembly is - no box, the hero's cyan glow, its corner
   marks and HUD labels, the canvas fading out at its edges over the section's own background. */
.lp-viewer { position: relative; display: block; width: 100%; aspect-ratio: 16 / 10; border-radius: 24px; cursor: grab; touch-action: pan-y;
    background: radial-gradient(60% 58% at 50% 50%, var(--lp-cyan-soft), transparent 72%); }
.lp-viewer::before, .lp-viewer::after { content: ""; position: absolute; z-index: 1; width: 22px; height: 22px; border: 1.5px solid var(--line-strong); pointer-events: none; }
.lp-viewer::before { left: 0; top: 0; border-right: 0; border-bottom: 0; border-top-left-radius: 6px; }
.lp-viewer::after { right: 0; bottom: 0; border-left: 0; border-top: 0; border-bottom-right-radius: 6px; }
.lp-viewer .lp-hud { z-index: 1; }
.lp-viewer .lp-hud-tl { left: 32px; top: 8px; }
.lp-viewer .lp-hud-br { right: 32px; bottom: 8px; }
.lp-viewer.is-3d .lp-hud-hint { display: block; }
.lp-viewer:active { cursor: grabbing; }
.lp-media-main .lp-viewer { aspect-ratio: auto; height: 100%; min-height: 360px; }
.lp-show-n2 .lp-media-main .lp-viewer, .lp-show-n1 .lp-media-main .lp-viewer { min-height: 0; aspect-ratio: 16 / 10; height: auto; }
.lp-viewer-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; transition: opacity 500ms var(--ease-out);
    -webkit-mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, #000 78%, transparent); mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, #000 78%, transparent); }
.lp-viewer-canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; opacity: 0; transition: opacity 600ms var(--ease-out);
    -webkit-mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, #000 78%, transparent); mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, #000 78%, transparent); }
.lp-viewer.is-3d .lp-viewer-canvas { opacity: 1; }
.lp-viewer.is-3d .lp-viewer-poster { opacity: 0; }
.lp-loop-box video { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; background: var(--surface-sunken); }
.lp-media-main .lp-loop-box video { aspect-ratio: auto; height: 100%; }
.lp-loop-box { background: var(--surface-sunken); }
.lp-loop-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; z-index: 1; pointer-events: none; transition: opacity 300ms var(--ease-out); }
.lp-loop-box.is-playing .lp-loop-poster { opacity: 0; }
.lp-loop-toggle { z-index: 2;  position: absolute; right: 10px; bottom: 10px; width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--paper) 80%, transparent); color: var(--ink); cursor: pointer; }
.lp-loop-toggle:hover { border-color: var(--lp-cyan); }
.lp-still { height: auto; object-fit: cover; }
.lp-show-n1 .lp-media-main .lp-viewer { aspect-ratio: 2 / 1; }
/* worked requests (round 3): what you type, what SphereHarness does */
.lp-asks { list-style: none; margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: ask; }
.lp-show-grid + .lp-asks { margin-top: 28px; }
.lp-ask { counter-increment: ask; display: grid; gap: 12px; align-content: start; padding: 18px; border-radius: var(--lp-radius); border: 1px solid var(--line); background: var(--surface); }
.lp-ask p { margin: 0; }
.lp-ask-you { display: grid; gap: 8px; }
.lp-ask-k { font-family: var(--font-mono); font-size: 11px; line-height: 15px; letter-spacing: .1em; text-transform: uppercase; color: var(--lp-cyan-ink); font-weight: 600; }
.lp-ask-k::before { content: counter(ask, decimal-leading-zero) "  "; color: var(--ink-muted); }
.lp-ask-q { font-family: var(--font-mono); font-size: 14px; line-height: 21px; color: var(--ink); padding: 10px 12px; border-radius: var(--lp-radius-sm); background: var(--surface-sunken); border: 1px solid var(--line); overflow-wrap: anywhere; }
.lp-ask-does { font-size: 14px; line-height: 22px; color: var(--ink-muted); }
.lp-show-videos { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.lp-show-videos-title { font-family: var(--font-mono); font-size: 12px; line-height: 16px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-muted); font-weight: 600; margin-bottom: 14px; }
.lp-show-video-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }

/* ---------------------------------------------------------------- reveal (only below the fold, only with script) */
.lp-pending { opacity: 0; transform: translateY(14px); }
.lp-shown { transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }

/* ---------------------------------------------------------------- responsive
   Owner 2026-10-17: a desktop browser showed the phone layout. The page stacked everything at <= 1080 CSS px, and a
   1330 px Chrome window at 125 % zoom is ~1050 CSS px wide. The desktop layout now holds down to 861 CSS px (a 1280 px
   window up to ~145 % zoom); tablets stack at <= 860; phones get the one-column rules at <= 640. */
@media (max-width: 1080px) {
    .lp-hero h1 { font-size: clamp(2.1rem, 3.7vw, 2.6rem); }
    .lp-hero .lead { font-size: 16.5px; line-height: 26px; }
    .lp-show-head { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .lp-facts dt { font-size: 19px; }
}
@media (max-width: 860px) {
    .lp-show-head { grid-template-columns: minmax(0, 1fr); align-items: start; }
    .lp-show-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .lp-show-grid .lp-media-main { grid-column: 1 / -1; grid-row: auto; }
    .lp-media-main .lp-viewer { min-height: 0; height: auto; aspect-ratio: 16 / 10; }
    .lp-media-main .lp-loop-box video { aspect-ratio: 16 / 9; height: auto; }
    .lp-show-video-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lp-asks { grid-template-columns: minmax(0, 1fr); }
    .lp-hero-grid, .lp-split { grid-template-columns: minmax(0, 1fr); }
    .lp-stage-view { max-width: 560px; aspect-ratio: 4 / 3.4; }
    .lp-car-track { grid-auto-columns: calc((100% - 20px) / 2); }
    .lp-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lp-bento-wide { grid-column: auto; }
    .lp-bento > li:last-child:nth-child(odd) { grid-column: span 2; }
}
@media (max-width: 640px) {
    .lp-show-grid { grid-template-columns: minmax(0, 1fr); }
    .lp-facts > div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
    .lp-facts dt { font-size: 20px; white-space: normal; }
    .lp-show-video-list { grid-template-columns: minmax(0, 1fr); }
    .lp-hero { padding-top: 28px; }
    .lp-hero-copy { gap: 18px; }
    .lp-hero h1 { font-size: clamp(2.05rem, 9.4vw, 2.6rem); font-stretch: 115%; letter-spacing: -.035em; }
    .lp-actions .sh-btn { flex: 1 1 auto; }
    .lp-stage-view { aspect-ratio: 1 / 1; }
    .lp-hud-tl { left: 26px; } .lp-hud-br { right: 26px; }
    .lp-proof-list { grid-template-columns: 1fr; }
    .lp-proof-list li { padding: 16px 0; }
    .lp-proof-list li + li { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
    .lp-row-head { flex-direction: column; align-items: flex-start; margin-bottom: 20px; }
    .lp-car-nav { display: none; }
    .lp-car-track { grid-auto-columns: 86%; gap: 14px; }
    .lp-bento { grid-template-columns: minmax(0, 1fr); }
    .lp-bento-wide, .lp-bento > li:last-child:nth-child(odd) { grid-column: auto; }
    .lp-cap { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
    .lp-tag-dot { animation: none; }
    .lp-pending { opacity: 1; transform: none; }
    .lp-shown, .lp-cap, .lp-video-facade img, .lp-video-play, .lp-stage-svg, .lp-stage-canvas, .lp-body .sh-btn-primary { transition: none; }
    .lp-cap:hover, .lp-body .sh-btn-primary:hover { transform: none; }
    .lp-video-facade:hover img { transform: scale(1.01); }
    .lp-car-track { scroll-behavior: auto; }
}