:root { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #1c2836; background: #f6f8fa; line-height: 1.55; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
a { color: #265e91; }
a:focus-visible, button:focus-visible, select:focus-visible { outline: 3px solid #4a95db; outline-offset: 3px; }
.shell { width: min(1140px, calc(100% - 2rem)); margin-inline: auto; }
.site-header { background: white; border-bottom: 1px solid #e1e7ed; }
.navigation, .nav-links, .footer-inner { display: flex; align-items: center; gap: 1.5rem; }
.navigation { justify-content: space-between; min-height: 4.6rem; }
.brand { font-size: 1.35rem; font-weight: 800; letter-spacing: -.045em; text-decoration: none; color: #152c43; }
.brand span { color: #168678; }
.nav-links a { font-weight: 600; text-decoration: none; color: #34485c; }
.page-content { flex: 1; padding-block: 3.2rem 4rem; }
.hero { display: grid; gap: 3rem; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr); align-items: center; }
.eyebrow { text-transform: uppercase; color: #158777; font-size: .8rem; font-weight: 750; letter-spacing: .09em; }
h1 { font-size: clamp(2.1rem, 4.2vw, 3.8rem); line-height: 1.13; letter-spacing: -.045em; margin: .7rem 0 1rem; }
h2 { font-size: 1.15rem; margin-top: 0; }
.lead { font-size: 1.1rem; color: #526377; max-width: 64ch; }
.actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.5rem; }
.button { display: inline-flex; padding: .68rem 1rem; border-radius: .6rem; border: 1px solid #cfdae4; align-items: center; justify-content: center; font: inherit; font-weight: 650; text-decoration: none; cursor: pointer; background: white; color: #253e53; }
.button.primary { background: #166c61; color: white; border-color: #166c61; }
.button:hover:not(:disabled) { filter: brightness(.95); }
.button:disabled { opacity: .45; cursor: not-allowed; }
.hero-aside, .panel { background: white; border: 1px solid #e1e7ed; border-radius: 1rem; padding: 1.5rem; box-shadow: 0 4px 18px rgba(30,48,66,.025); }
.hero-aside ul { padding-inline-start: 1.4rem; }
.warning { color: #825b1f; font-size: .91rem; }
.notice { background: #fff7eb; color: #6c491b; padding: 1rem 1.3rem; border-radius: .7rem; margin-bottom: 1.5rem; border: 1px solid #eed6af; }
.features, .exercise-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; margin-top: 2rem; }
.exercise-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.muted { color: #627489; font-size: .92rem; }
.page-heading { margin-bottom: 2rem; }
.exercise-card .button { margin-top: .6rem; }
.capture-layout { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(280px,.9fr); gap: 1.2rem; }
.camera-stage { background: #13202b; border-radius: .7rem; aspect-ratio: 4 / 3; position: relative; overflow: hidden; display: grid; place-items: center; color: white; }
.camera-stage video { width: 100%; height: 100%; object-fit: contain; }
.camera-overlay { position: absolute; bottom: .8rem; left: .8rem; right: .8rem; text-align: center; background: rgba(15,25,34,.78); border-radius: .5rem; padding: .5rem; font-size: .85rem; }
.capture-controls { display: flex; flex-direction: column; align-items: flex-start; }
.capture-controls select, .features select { display: block; font: inherit; width: 100%; max-width: 240px; padding: .6rem; border-radius: .5rem; border: 1px solid #cedae6; margin: .5rem 0 1rem; background: white; }
.counter { font-size: 3rem; font-weight: 750; font-variant-numeric: tabular-nums; margin: .4rem 0; }
.back-link { display: inline-block; margin-top: 2rem; }
.site-footer { background: white; border-top: 1px solid #e1e7ed; color: #607184; padding: 1.3rem 0; font-size: .86rem; }
.footer-inner { flex-wrap: wrap; justify-content: space-between; }
.skip-link { position: absolute; left: -9999px; top: 0; }
.skip-link:focus { left: 1rem; z-index: 99; background: white; padding: 1rem; }
@media (max-width: 800px) { .hero, .capture-layout { grid-template-columns: 1fr; } .features { grid-template-columns: 1fr 1fr; } }
@media (max-width: 570px) { .navigation { align-items: flex-start; flex-direction: column; padding-block: 1rem; gap: .3rem; } .nav-links { flex-wrap: wrap; gap: 1rem; } .features, .exercise-grid { grid-template-columns: 1fr; } .page-content { padding-block: 2rem; } .hero-aside, .panel { padding: 1rem; } }

.file-input { display: block; max-width: 100%; margin: .75rem 0 1.3rem; }
.video-details { display: grid; grid-template-columns: 7rem minmax(0,1fr); gap: .45rem 1rem; margin-top: 1.3rem; }
.video-details[hidden] { display: none; }
.video-details dt { color: #607184; font-weight: 650; }
.video-details dd { margin: 0; overflow-wrap: anywhere; }

/* PR-057 — provisional Vorymo Misty Blue & Apricot visual identity */
:root { --vorymo-slate:#476E87; --vorymo-ink:#1D3344; --vorymo-apricot:#ECA77A; --vorymo-accent-text:#B85D41; --vorymo-mist:#E6F2FF; --vorymo-cream:#FFF7F1; --vorymo-surface:#FFFFFF; }
:root { color:var(--vorymo-ink); background:#F5F7F8; }
a {color:#27597E;}
a:focus-visible,button:focus-visible,select:focus-visible {outline-color:var(--vorymo-slate);}
.site-header,.site-footer {background:var(--vorymo-surface);border-color:#DFE7ED;}
.brand {display:inline-flex;align-items:center;flex-shrink:0;}
.brand img {display:block;max-width:100%;height:auto;}
.nav-links a {color:var(--vorymo-ink);}
.nav-links a:hover {color:#27597E;}
.eyebrow {color:#A85239;}
.lead,.muted,.video-details dt {color:#52677A;}
.button {border-color:#CCDDE8;color:var(--vorymo-ink);}
.button.primary {background:var(--vorymo-slate);border-color:var(--vorymo-slate);color:white;}
.hero-aside,.panel {border-color:#DFE7ED;box-shadow:0 6px 22px rgba(29,51,68,.04);}
.notice {background:var(--vorymo-cream);border-color:#F5DCCB;color:#664531;}
.camera-stage {background:#152638;}
@media (prefers-reduced-motion:reduce) {.button {transition:none;}}

/* Opt-in, mobile-friendly exercise demonstration clips; never used as analysis input. */
.exercise-demo, .practice-demo-video {display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#152638;border-radius:.7rem;}
.exercise-demo-caption {margin-top:.45rem;}
.demo-example {margin-bottom:1.2rem;}
.demo-example summary {font-weight:650;cursor:pointer;}
.practice-demo-video {max-width:640px;margin-top:1rem;}

/* Browser-local prerecorded pose diagnostics; no camera or server video upload. */
#offline-preview { width:100%; height:100%; object-fit:contain; }
#offline-preview[hidden], #offline-results[hidden] { display:none; }
#offline-placeholder { padding:1.5rem; text-align:center; }
#offline-results { margin-top:1.2rem; }