/* Page sections: hero, showcase, pipeline, specs, footer. */

main { padding-top: var(--nav-h); }

section { padding: 88px 0; }

/* ---------- Hero ---------- */
.hero {
  border-bottom: 1px solid var(--line);
}

.hero__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 56px;
  align-items: center;
}

.hero__title {
  font-size: clamp(38px, 5.6vw, 64px);
  letter-spacing: -0.025em;
}

.hero__lede {
  margin-top: 22px;
  max-width: 540px;
  font-size: 17px;
}

.hero__actions {
  margin-top: 30px;
  display: flex;
  gap: 12px;
}

.hero__metrics {
  margin-top: 48px;
  display: flex;
  gap: 48px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.hero__schematic-stage {
  padding: 18px;
}

.hero__schematic-stage svg {
  width: 100%;
  height: auto;
}

/* ---------- Showcase ---------- */
.showcase {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.showcase .panel { background: var(--bg); }

.showcase__grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.viz {
  transition: border-color var(--t-fast);
}

.viz:hover { border-color: var(--line-strong); }

.viz--wide { grid-column: 1 / -1; }

.viz__stage {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg);
  overflow: hidden;
  contain: strict;
}

.viz--wide .viz__stage { aspect-ratio: 21 / 9; }

.viz__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.viz__readout {
  display: flex;
  gap: 24px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--text-faint);
  flex-wrap: wrap;
}

.viz__readout b {
  font-weight: 500;
  color: var(--accent-2);
  font-variant-numeric: tabular-nums;
}

.showcase__note {
  max-width: var(--max-w);
  margin: 24px auto 0;
  padding: 0 var(--gutter);
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

@media (max-width: 880px) {
  .hero__inner { grid-template-columns: 1fr; }
  .showcase__grid { grid-template-columns: 1fr; }
  .hero__metrics { gap: 32px; flex-wrap: wrap; }
}

/* ---------- Motion ---------- */
.motion {
  border-bottom: 1px solid var(--line);
}

.motion__wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.motion .panel { background: var(--bg); }

/* Status dot goes lime while the analysis loop is actually running. */
.viz.is-live .panel__status .dot { background: var(--accent-2); }

/* Narrow stages stack skeleton over chart, so give them vertical room. */
@media (max-width: 880px) {
  .motion .viz__stage { aspect-ratio: 3 / 4; }
}

/* ---------- Pipeline ---------- */
.pipeline__grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

@media (max-width: 980px) {
  .pipeline__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .pipeline__grid { grid-template-columns: 1fr; }
}

/* ---------- Upload ---------- */
.upload {
  background: var(--surface);
  border-top: 1px solid var(--line);
  /* no border-bottom: the specs section that follows supplies its own */
}

.upload__wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.upload__panel { background: var(--bg); }

.upload__body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.upload__drop {
  border: 1px dashed var(--line-strong);
  padding: 40px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast);
  color: var(--text-muted);
}

.upload__drop:hover,
.upload__drop:focus-visible,
.upload__drop.is-drag {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.upload__drop-sub { color: var(--text-faint); font-size: 10px; }

.upload__file {
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--line);
  padding: 10px 14px;
}

.upload__file-name { color: var(--accent-2); word-break: break-all; }

.upload__file-meta { color: var(--text-faint); margin-left: auto; white-space: nowrap; }

.upload__consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  max-width: 640px;
}

.upload__consent input {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  margin-top: 2px;
  flex-shrink: 0;
}

.upload__consent a { color: var(--accent); }

.upload__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.upload__progress {
  flex: 1;
  height: 8px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
}

.upload__progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width var(--t-fast);
}

.upload__status { color: var(--text-faint); letter-spacing: 0.04em; }

.upload__status.is-error { color: #e5604c; }

.upload__status.is-ok { color: var(--accent-2); }

.upload__result {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 14px;
  max-height: 280px;
  overflow: auto;
  font-size: 11px;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Backend status chip: lime when the health probe succeeds, gray when not. */
.upload__panel.is-online .panel__status .dot { background: var(--accent-2); }
.upload__panel.is-offline .panel__status .dot { background: #5c6877; }

/* ---------- Pose viewer (analysis result) ---------- */
.pose {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pose__stage {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000;
  border: 1px solid var(--line);
  overflow: hidden;
}

/* Fit the frame within the viewport: full width when it's landscape, but
   capped by height so a portrait image is fully visible without scrolling.
   The canvas keeps its native pixel resolution (set in JS) for sharpness;
   only the displayed size is bounded. */
.pose__canvas {
  display: block;
  max-width: 100%;
  max-height: 78vh;
  width: auto;
  height: auto;
}

.pose__legend,
.pose__counter {
  position: absolute;
  top: 8px;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: rgba(11, 14, 18, 0.7);
  padding: 4px 8px;
  border: 1px solid var(--line);
}

.pose__legend {
  left: 8px;
  display: flex;
  gap: 12px;
  align-items: center;
}
.pose__legend-key { display: inline-flex; align-items: center; gap: 5px; }
.pose__legend-sw {
  width: 9px;
  height: 9px;
  display: inline-block;
  border-radius: 2px;
}
.pose__legend-sw--player { background: #5fe000; }
.pose__legend-sw--bone { background: #00b4ff; }
.pose__legend-sw--ball { background: #ff5000; }
.pose__counter { right: 8px; color: var(--text-faint); }

/* Keypoint hover tooltip. Offset from the cursor, never intercepts the mouse. */
.pose__tip {
  position: absolute;
  transform: translate(10px, -50%);
  background: rgba(11, 14, 18, 0.92);
  color: var(--text);
  border: 1px solid var(--line-strong);
  padding: 3px 7px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 20;
}

.pose__scrub {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pose__scrub-label {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.pose__slider {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

.pose__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.pose__card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left-width: 2px;
  padding: 10px 14px;
}

.pose__card--good { border-left-color: var(--accent-2); }
.pose__card--caution { border-left-color: #ffcb47; }
.pose__card--warn { border-left-color: #ff6e5b; }
.pose__card--neutral { border-left-color: var(--line-strong); }
/* Muted: the backend couldn't measure this angle (e.g. an underwater joint) —
   grayed out rather than showing a fabricated number. */
.pose__card--muted { border-left-color: var(--line); opacity: 0.55; }

.pose__card-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 5px;
}

.pose__card-note {
  font-size: 13px;
  color: var(--text);
}

.pose__card--good .pose__card-note { color: var(--accent-2); }
.pose__card--caution .pose__card-note { color: #ffcb47; }
.pose__card--warn .pose__card-note { color: #ff6e5b; }
.pose__card--neutral .pose__card-note { color: var(--text-muted); }
.pose__card--muted .pose__card-note { color: var(--text-faint); font-style: italic; }

.pose__quality-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 11px;
}

.pose__q--tracked { color: var(--accent-2); }
.pose__q--partial { color: #ffcb47; }
.pose__q--estimated { color: var(--text-faint); }

.pose__bar {
  margin-top: 8px;
  height: 4px;
  background: var(--bg);
  display: flex;
  overflow: hidden;
}

.pose__bar-seg { display: block; height: 100%; }
.pose__bar-seg--tracked { background: var(--accent-2); }
.pose__bar-seg--partial { background: #ffcb47; }
.pose__bar-seg--estimated { background: var(--line-strong); }


/* ---------- Specs ---------- */
.specs {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.specs__table {
  max-width: calc(var(--max-w) - var(--gutter) * 2);
  margin: 0 var(--gutter);
  width: calc(100% - var(--gutter) * 2);
  border-collapse: collapse;
  background: var(--bg);
  border: 1px solid var(--line);
  display: block;
  overflow-x: auto;
}

@media (min-width: 1228px) {
  .specs__table { margin: 0 auto; }
}

.specs__table tbody { display: table; width: 100%; }

.specs__table th,
.specs__table td {
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.specs__table tr:last-child th,
.specs__table tr:last-child td { border-bottom: none; }

.specs__table th {
  color: var(--accent);
  white-space: nowrap;
  width: 220px;
  border-right: 1px solid var(--line);
  font-weight: 500;
}

.specs__table td {
  color: var(--text-muted);
  font-size: 15px;
}

/* ---------- Legal ---------- */
.legal {
  border-bottom: 1px solid var(--line);
}

.legal__grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 980px) {
  .legal__grid { grid-template-columns: 1fr; }
}

.legal__doc {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.legal__doc h3 {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.legal__rev {
  margin: 6px 0 14px;
  color: var(--text-faint);
}

.legal__body {
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 14px;
  max-height: 340px;
  overflow-y: auto;
  font-size: 10.5px;
  letter-spacing: 0.02em;
  line-height: 1.65;
}

.legal__body p {
  color: var(--text-muted);
  margin-bottom: 12px;
}

.legal__body p:last-child { margin-bottom: 0; }

.legal__body:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: -1px;
}

/* ---------- Footer ---------- */
.footer {
  padding: 36px 0;
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer__icon { flex-shrink: 0; }

.footer__brand { font-weight: 700; }

.footer__line { color: var(--text-faint); }

.footer__legal {
  display: flex;
  gap: 16px;
  margin-left: auto;
}

.footer__legal a {
  color: var(--text-muted);
  transition: color var(--t-fast);
}

.footer__legal a:hover { color: var(--accent); }

.footer__top {
  color: var(--text-muted);
  transition: color var(--t-fast);
}

.footer__top:hover { color: var(--accent); }

@media (max-width: 640px) {
  .footer__inner { flex-wrap: wrap; }
}