:root {
  --brand-primary: #d3262c;
  --brand-secondary: #5a171a;
  --brand-accent: #ff5258;
  --brand-danger: #ef4444;
  --bg: #070706;
  --bg-2: #15120f;
  --panel: rgba(18, 16, 14, 0.86);
  --panel-solid: #14110f;
  --line: rgba(226, 56, 62, 0.24);
  --text: #f4f4f5;
  --muted: #b7b0ae;
  --muted-2: #807775;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  --radius: 22px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--sans); }
body { margin: 0; min-height: 100%; background:
  radial-gradient(circle at 12% 10%, rgba(211, 38, 44, .24), transparent 28rem),
  radial-gradient(circle at 84% 0%, rgba(90, 23, 26, .44), transparent 24rem),
  linear-gradient(135deg, #050505 0%, #15110f 55%, #050505 100%);
}

a { color: inherit; text-decoration: none; }
button, select, input, textarea { font: inherit; }
code { font-family: var(--mono); color: #fecaca; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding: .85rem clamp(1rem, 2.5vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 7, 6, 0.82);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; min-width: 0; }
.brand-logo { width: 48px; height: 48px; border-radius: 999px; object-fit: cover; box-shadow: 0 0 28px rgba(211,38,44,.34); background: #090807; }
.brand strong { display: block; line-height: 1; }
.brand small { display: block; margin-top: .25rem; color: var(--muted); font-size: .78rem; }
.topnav { display: flex; gap: .75rem; flex-wrap: wrap; justify-content: flex-end; }
.topnav a { color: var(--muted); font-size: .93rem; padding: .45rem .7rem; border: 1px solid transparent; border-radius: 999px; }
.topnav a:hover, .topnav a.active { color: var(--text); border-color: var(--line); background: rgba(211,38,44,.08); }

.shell { width: min(1440px, 100%); margin: 0 auto; padding: clamp(1rem, 2vw, 2rem); }
.landing { display: grid; gap: 1rem; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.glass { backdrop-filter: blur(18px); }
.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr); gap: 2rem; padding: clamp(1.25rem, 4vw, 3rem); overflow: hidden; }
.eyebrow { color: var(--brand-accent); text-transform: uppercase; letter-spacing: .16em; font-size: .77rem; font-weight: 800; }
h1, h2, h3 { margin: 0 0 .65rem; line-height: 1.05; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 6vw, 4.7rem); max-width: 980px; }
h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
h3 { font-size: 1.02rem; }
p { color: var(--muted); line-height: 1.6; }
.lead { font-size: clamp(1rem, 2vw, 1.25rem); max-width: 860px; }
.mini-note { margin-top: -.25rem; margin-bottom: .75rem; font-size: .85rem; line-height: 1.45; }
.action-row { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.25rem; }
.button {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.055);
  color: var(--text);
  border-radius: 14px;
  padding: .75rem 1rem;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-1px); border-color: rgba(211,38,44,.7); background: rgba(211,38,44,.09); }
.button.primary { background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary)); color: white; border-color: transparent; font-weight: 800; }
.button.warn { background: rgba(239, 68, 68, .14); border-color: rgba(239, 68, 68, .45); color: #fecaca; }
.button.good { background: rgba(34, 197, 94, .14); border-color: rgba(34, 197, 94, .45); color: #bbf7d0; }
.button.full { width: 100%; }
.button:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.hero-card { min-height: 360px; position: relative; border-radius: 28px; overflow: hidden; border: 1px solid rgba(211,38,44,.24); background: #080706; display: grid; place-items: end center; padding: 1.25rem; }
.hero-card p { position: relative; z-index: 2; text-align: center; color: #d6d3d1; margin: 0; }
.scan-grid { position: absolute; inset: 0; background:
    linear-gradient(rgba(211,38,44,.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(211,38,44,.13) 1px, transparent 1px),
    radial-gradient(circle at 50% 60%, rgba(255,82,88,.18), transparent 25%),
    linear-gradient(180deg, rgba(90,23,26,.34), transparent 55%);
  background-size: 38px 38px, 38px 38px, auto, auto;
  transform: perspective(600px) rotateX(54deg) scale(1.8);
  transform-origin: 50% 90%;
}
.radar-dot { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: var(--brand-primary); box-shadow: 0 0 28px var(--brand-primary); }
.radar-dot.d1 { left: 28%; top: 45%; }
.radar-dot.d2 { left: 63%; top: 36%; background: var(--brand-accent); box-shadow: 0 0 28px var(--brand-accent); }
.radar-dot.d3 { left: 74%; top: 58%; background: #f59e0b; box-shadow: 0 0 28px #f59e0b; }

.cards.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.card { padding: 1.25rem; display: flex; flex-direction: column; }
.card p { flex: 0; }
.tag { align-self: start; color: #fecaca; background: rgba(211,38,44,.12); border: 1px solid rgba(211,38,44,.36); border-radius: 999px; padding: .3rem .65rem; font-size: .8rem; font-weight: 700; margin-bottom: .85rem; }
.checklist { margin: 1rem 0 1.25rem; padding: 0; list-style: none; color: #d6d3d1; display: grid; gap: .55rem; }
.checklist li { padding-left: 1.55rem; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-accent); font-weight: 900; }
.notes { padding: 1.25rem; }
.footer { color: var(--muted-2); text-align: center; padding: 1rem 1rem 2rem; font-size: .9rem; }
.footer a { color: #fecaca; text-decoration: underline; text-underline-offset: 3px; }

.app-grid { display: grid; grid-template-columns: minmax(0, 1fr) 392px; gap: 1rem; align-items: start; }
.stage { padding: .75rem; }
.video-wrap { position: relative; width: 100%; min-height: 56vw; max-height: calc(100vh - 180px); aspect-ratio: 16/9; background: #020202; border-radius: calc(var(--radius) - 6px); overflow: hidden; border: 1px solid var(--line); }
.video-wrap video, .video-wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.video-wrap video { z-index: 1; transform: translateZ(0); }
.video-wrap canvas { z-index: 2; pointer-events: auto; }
.status-pill { position: absolute; left: .75rem; top: .75rem; z-index: 5; padding: .4rem .7rem; border: 1px solid var(--line); border-radius: 999px; background: rgba(7,7,6,.74); backdrop-filter: blur(10px); color: #d6d3d1; font-size: .82rem; }
.stage-controls { display: flex; gap: .55rem; flex-wrap: wrap; margin-top: .75rem; }
.side { display: grid; gap: 1rem; }
.side .panel, .stage .panel { padding: 1rem; }
.control-grid { display: grid; gap: .65rem; }
.control-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
label.field { display: grid; gap: .35rem; color: var(--muted); font-size: .82rem; }
select, input, textarea { width: 100%; color: var(--text); background: rgba(255,255,255,.055); border: 1px solid var(--line); border-radius: 12px; padding: .65rem .7rem; outline: none; }
input[type="range"] { padding: 0; accent-color: var(--brand-primary); }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; }
.metric { background: rgba(255,255,255,.045); border: 1px solid var(--line); border-radius: 14px; padding: .75rem; min-height: 76px; }
.metric strong { display: block; font-size: 1.08rem; color: #fff; margin-top: .25rem; overflow-wrap: anywhere; }
.metric small { color: var(--muted); }
.logbox { max-height: 180px; overflow: auto; background: rgba(2,2,2,.62); border: 1px solid var(--line); border-radius: 14px; padding: .75rem; font-family: var(--mono); font-size: .75rem; color: #d6d3d1; white-space: pre-wrap; }
.packet { min-height: 170px; }
.path-decision { display: grid; gap: .6rem; }
.bar { display: grid; grid-template-columns: 84px 1fr 44px; gap: .5rem; align-items: center; color: #d6d3d1; font-size: .86rem; }
.track { background: rgba(255,255,255,.08); border: 1px solid var(--line); border-radius: 999px; height: 12px; overflow: hidden; }
.fill { height: 100%; width: 0%; background: linear-gradient(90deg, #22c55e, #f59e0b, var(--brand-danger)); }
.suggestion { padding: .85rem; border-radius: 16px; border: 1px solid rgba(34,197,94,.35); background: rgba(34,197,94,.1); color: #dcfce7; font-weight: 800; text-align: center; }
.suggestion.stop { border-color: rgba(239,68,68,.55); background: rgba(239,68,68,.12); color: #fee2e2; }
.suggestion.caution { border-color: rgba(245,158,11,.55); background: rgba(245,158,11,.12); color: #ffedd5; }
.suggestion.right { border-color: rgba(211,38,44,.65); background: rgba(211,38,44,.14); color: #fee2e2; }

.dual-view { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.mini-video { position: relative; aspect-ratio: 16/9; border-radius: 16px; overflow: hidden; background: #020202; border: 1px solid var(--line); }
.mini-video video, .mini-video canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.mini-video span { position: absolute; left: .5rem; top: .5rem; z-index: 5; color: #d6d3d1; font-size: .75rem; background: rgba(2,2,2,.65); padding: .25rem .45rem; border-radius: 999px; }

.diagram-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.diagram-card { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 16px; padding: .6rem; }
.diagram-card img { width: 100%; display: block; border-radius: 12px; background: #020202; }
.diagram-card p { margin: .5rem 0 0; font-size: .78rem; line-height: 1.35; }
.report-list { display: grid; gap: .55rem; max-height: 220px; overflow: auto; }
.report-item { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; padding: .65rem; color: #d6d3d1; font-size: .85rem; }
.notice { border: 1px solid rgba(245,158,11,.35); background: rgba(245,158,11,.08); color: #ffedd5; border-radius: var(--radius); padding: .8rem 1rem; }
.notice p { margin: 0; color: #ffedd5; font-size: .88rem; }

@media (max-width: 1080px) {
  .app-grid { grid-template-columns: 1fr; }
  .video-wrap { min-height: 52vw; max-height: none; }
}

@media (max-width: 720px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .brand small { font-size: .72rem; }
  .hero { grid-template-columns: 1fr; }
  .cards.two { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr; }
  .diagram-grid { grid-template-columns: 1fr; }
  .control-grid.two { grid-template-columns: 1fr; }
  .bar { grid-template-columns: 76px 1fr 40px; }
}

.cards.three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.scene-grid { grid-template-columns: minmax(0, 1fr) 410px; }
.scene-video-wrap { min-height: 44vw; }
.scene-output-panel { margin-top: .85rem; padding: 1rem; }
.scene-output-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; }
.file-button { position: relative; overflow: hidden; }
.map-output-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin-top: .75rem; }
.map-card, .model-card { border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.035); overflow: hidden; min-height: 240px; position: relative; }
.map-card canvas { width: 100%; height: 260px; display: block; background: #080706; }
.map-card span, .model-card span { display: block; padding: .55rem .7rem; color: var(--muted); font-size: .82rem; border-top: 1px solid var(--line); }
.model-card { grid-column: 1 / -1; }
model-viewer { width: 100%; height: 360px; background: radial-gradient(circle at 50% 50%, rgba(211,38,44,.12), transparent 55%), #080706; }
.model-placeholder { display: grid; place-items: center; height: 100%; padding: 1rem; text-align: center; color: var(--muted); }
.workflow-list { display: grid; gap: .6rem; }
.workflow-list div { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; padding: .65rem; display: grid; gap: .25rem; }
.workflow-list strong { color: #fecaca; }
.workflow-list span { color: var(--muted); font-size: .86rem; line-height: 1.35; }
.thumb-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; max-height: 360px; overflow: auto; }
.thumb-card { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; overflow: hidden; }
.thumb-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; background: #020202; }
.thumb-card span { display: block; color: var(--muted); font-size: .75rem; padding: .45rem .55rem; }

@media (max-width: 1180px) {
  .cards.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scene-grid { grid-template-columns: 1fr; }
  .scene-video-wrap { min-height: 52vw; }
}

@media (max-width: 720px) {
  .cards.three { grid-template-columns: 1fr; }
  .map-output-grid { grid-template-columns: 1fr; }
  .thumb-grid { grid-template-columns: 1fr; }
  model-viewer { height: 260px; }
}

/* v5 scene capture recording and scan UX */
.video-wrap.recording-active {
  border-color: rgba(239, 68, 68, .95);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, .35), 0 0 46px rgba(239, 68, 68, .38), var(--shadow);
}
.recording-hud {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 8;
  display: none;
  align-items: center;
  gap: .55rem;
  background: rgba(2, 2, 2, .78);
  border: 1px solid rgba(239, 68, 68, .75);
  border-radius: 999px;
  color: #fecaca;
  padding: .48rem .72rem;
  font-family: var(--mono);
  box-shadow: 0 0 24px rgba(239, 68, 68, .28);
}
.recording-hud.show { display: inline-flex; }
.rec-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 18px #ef4444;
  animation: recPulse .85s infinite;
  flex: 0 0 auto;
}
.rec-dot.small { width: 12px; height: 12px; background: #57534e; box-shadow: none; animation: none; }
.rec-dot.small.active { background: #ef4444; box-shadow: 0 0 18px #ef4444; animation: recPulse .85s infinite; }
@keyframes recPulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .42; transform: scale(.78); } }
.keyframe-flash {
  position: absolute;
  inset: 0;
  z-index: 7;
  display: grid;
  place-items: center;
  color: #bbf7d0;
  font-weight: 900;
  letter-spacing: .08em;
  background: rgba(34, 197, 94, .15);
  opacity: 0;
  pointer-events: none;
  transform: scale(.98);
  transition: opacity .18s ease, transform .18s ease;
  text-shadow: 0 2px 18px rgba(0,0,0,.8);
}
.keyframe-flash.show { opacity: 1; transform: scale(1); }
.scan-coach {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 6;
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  align-items: center;
  background: rgba(2, 2, 2, .68);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  padding: .65rem .8rem;
  color: #e7e5e4;
  backdrop-filter: blur(10px);
}
.scan-coach strong { color: #fecaca; }
.scan-coach span { color: var(--muted); font-size: .86rem; }
.recording-panel { padding: 1rem; border-color: rgba(239,68,68,.32); }
.rec-status-row { display: flex; gap: .65rem; align-items: center; margin: .55rem 0 .8rem; }
.rec-status-row strong { color: #fecaca; }
.rec-status-row span:last-child { color: var(--muted); font-family: var(--mono); margin-left: auto; }
.progress-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
  overflow: hidden;
  margin-bottom: .8rem;
}
.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand-secondary), var(--brand-accent));
  transition: width .22s ease;
}
.quality-panel .bar { grid-template-columns: 88px 1fr 48px; }
.quality-bars { display: grid; gap: .55rem; }
.planner-grid { display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 1rem; align-items: start; }
.planner-card { padding: 1rem; }
.route-card { border: 1px solid var(--line); border-radius: 16px; padding: .85rem; background: rgba(255,255,255,.035); margin-bottom: .7rem; }
.route-card strong { color: #fecaca; display: block; margin-bottom: .25rem; }
.route-card p { margin: 0; font-size: .9rem; }
.plan-output { display: grid; gap: .75rem; }
.plan-step { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; padding: .75rem; }
.plan-step strong { color: #fecaca; }
.plan-step p { margin: .3rem 0 0; font-size: .9rem; }
.cards.four { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 1320px) { .cards.four { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 1080px) { .planner-grid { grid-template-columns: 1fr; } }
@media (max-width: 720px) {
  .recording-hud { left: .6rem; top: .6rem; font-size: .78rem; }
  .scan-coach { left: .6rem; right: .6rem; bottom: .6rem; }
  .quality-panel .bar { grid-template-columns: 76px 1fr 40px; }
  .cards.four { grid-template-columns: 1fr; }
}

/* v5 recording + scan QA UI */
.recording-banner {
  position: absolute;
  right: .75rem;
  top: .75rem;
  z-index: 6;
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .48rem .75rem;
  border-radius: 999px;
  border: 1px solid rgba(239, 68, 68, .72);
  background: rgba(127, 29, 29, .82);
  color: #fee2e2;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, .16), 0 0 28px rgba(239, 68, 68, .28);
  backdrop-filter: blur(10px);
  font-size: .82rem;
}
.recording-banner.show { display: flex; }
.rec-dot {
  width: .72rem;
  height: .72rem;
  border-radius: 999px;
  background: #ef4444;
  box-shadow: 0 0 18px #ef4444;
  animation: recPulse .9s infinite alternate;
}
@keyframes recPulse { from { opacity: .38; transform: scale(.88); } to { opacity: 1; transform: scale(1.12); } }
.video-wrap.is-recording { border-color: rgba(239, 68, 68, .90); box-shadow: 0 0 0 3px rgba(239, 68, 68, .22), 0 0 34px rgba(239, 68, 68, .20); }
.recording-button { background: rgba(239, 68, 68, .22) !important; border-color: rgba(239, 68, 68, .72) !important; color: #fee2e2 !important; }
.capture-flash {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: 0;
  background: rgba(255,255,255,.28);
  transition: opacity .12s ease;
}
.capture-flash.show { opacity: 1; }
.coach-panel { margin-top: .85rem; }
.coach-head { display: flex; justify-content: space-between; gap: 1rem; align-items: center; flex-wrap: wrap; }
.scan-progress-ring {
  --progress: 0%;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: conic-gradient(var(--brand-primary) var(--progress), rgba(255,255,255,.10) 0);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  box-shadow: inset 0 0 0 1px var(--line);
}
.scan-progress-ring::before {
  content: "";
  position: absolute;
}
.scan-progress-ring span {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #11100d;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  font-size: .9rem;
}
.quality-row { display: flex; gap: .45rem; flex-wrap: wrap; margin-top: .75rem; }
.quality-pill {
  padding: .34rem .58rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
  color: #d6d3d1;
  font-size: .78rem;
  font-weight: 700;
}
.quality-pill.good { border-color: rgba(34,197,94,.48); background: rgba(34,197,94,.12); color: #bbf7d0; }
.quality-pill.warn { border-color: rgba(245,158,11,.48); background: rgba(245,158,11,.12); color: #ffedd5; }
.quality-pill.bad { border-color: rgba(239,68,68,.62); background: rgba(239,68,68,.14); color: #fee2e2; }
.scan-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .35rem; margin-top: .75rem; }
.scan-steps span { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 12px; padding: .5rem; color: var(--muted); font-size: .75rem; text-align: center; }
.scan-steps span.active { border-color: rgba(245,158,11,.56); color: #ffedd5; background: rgba(245,158,11,.10); }
.scan-steps span.done { border-color: rgba(34,197,94,.50); color: #bbf7d0; background: rgba(34,197,94,.10); }
.check-field { display: flex; align-items: center; gap: .55rem; color: var(--muted); font-size: .84rem; }
.check-field input { width: auto; accent-color: var(--brand-primary); }
.quality-report { display: grid; gap: .35rem; border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; padding: .75rem; color: #d6d3d1; font-size: .86rem; line-height: 1.35; }
.quality-report strong { color: #fecaca; }
.quality-report span { color: var(--muted); }

@media (max-width: 720px) {
  .recording-banner { left: .75rem; right: auto; top: 3.1rem; font-size: .74rem; }
  .scan-steps { grid-template-columns: 1fr; }
  .scan-progress-ring { width: 62px; height: 62px; }
  .scan-progress-ring span { width: 46px; height: 46px; }
}

/* v5 recording / photogrammetry QA additions */
.button.record { background: rgba(239, 68, 68, .18); border-color: rgba(239, 68, 68, .60); color: #fee2e2; font-weight: 900; }
.button.active-rec { background: linear-gradient(135deg, #ef4444, #991b1b); color: #fff; border-color: transparent; box-shadow: 0 0 0 4px rgba(239,68,68,.12), 0 0 26px rgba(239,68,68,.35); }
.video-wrap.is-recording { box-shadow: 0 0 0 4px rgba(239, 68, 68, .48), 0 0 40px rgba(239, 68, 68, .26); }
.recording-badge { position: absolute; right: .75rem; top: .75rem; z-index: 6; display: grid; grid-template-columns: auto 1fr; grid-template-areas: "dot title" "dot sub"; align-items: center; column-gap: .55rem; min-width: min(360px, calc(100% - 1.5rem)); max-width: 460px; padding: .58rem .75rem; border-radius: 18px; border: 1px solid var(--line); background: rgba(7,7,6,.76); backdrop-filter: blur(10px); color: #e7e5e4; }
.recording-badge strong { grid-area: title; letter-spacing: .04em; font-size: .92rem; }
.recording-badge small { grid-area: sub; color: var(--muted); font-size: .73rem; line-height: 1.25; }
.recording-badge .rec-dot { grid-area: dot; width: 14px; height: 14px; border-radius: 50%; background: #71717a; box-shadow: none; }
.recording-badge.active { border-color: rgba(239,68,68,.78); background: rgba(127, 29, 29, .84); box-shadow: 0 0 34px rgba(239, 68, 68, .28); }
.recording-badge.active .rec-dot { background: #ef4444; box-shadow: 0 0 0 0 rgba(239,68,68,.85); animation: recPulse 1s infinite; }
@keyframes recPulse { 0% { box-shadow: 0 0 0 0 rgba(239,68,68,.85); } 70% { box-shadow: 0 0 0 12px rgba(239,68,68,0); } 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); } }
.scan-instruction { position: absolute; left: .75rem; right: .75rem; bottom: .75rem; z-index: 5; padding: .55rem .7rem; border-radius: 16px; background: rgba(2,2,2,.72); border: 1px solid var(--line); color: #f4f4f5; font-weight: 700; text-align: center; }
.recording-panel { border-color: rgba(239,68,68,.22); }
.recording-panel.is-recording { border-color: rgba(239,68,68,.55); background: linear-gradient(180deg, rgba(127,29,29,.22), rgba(255,255,255,.035)); }
.recording-status-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .65rem; }
.recording-status-grid div { border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.045); padding: .7rem; }
.recording-status-grid small { display: block; color: var(--muted); font-size: .74rem; }
.recording-status-grid strong { display: block; margin-top: .25rem; color: #fff; overflow-wrap: anywhere; }
.progress-wrap { margin-top: .8rem; }
.progress-top { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .82rem; margin-bottom: .35rem; }
.progress-track { height: 12px; border-radius: 999px; border: 1px solid var(--line); overflow: hidden; background: rgba(255,255,255,.075); }
.progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, #ef4444, #f59e0b, #22c55e); transition: width .2s ease; }
.advice-box { margin: .8rem 0 0; border: 1px solid rgba(245,158,11,.35); background: rgba(245,158,11,.08); color: #ffedd5; border-radius: 14px; padding: .7rem; font-size: .88rem; line-height: 1.4; }
.toggle-field { align-content: start; }
.toggle-field input[type="checkbox"] { width: 22px; height: 22px; accent-color: var(--brand-primary); }
.command-box { max-height: none; min-height: 270px; white-space: pre-wrap; }
.workbench-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 420px); gap: 1rem; align-items: start; }
.workbench-hero { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 1rem; align-items: center; padding: 1.4rem; }
.readiness-dial { --score: 0%; aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; align-content: center; background: radial-gradient(circle at center, #080706 0 56%, transparent 57%), conic-gradient(#22c55e var(--score), rgba(255,255,255,.08) 0); border: 1px solid var(--line); min-width: 170px; }
.readiness-dial strong { font-size: 2.2rem; color: #fff; }
.readiness-dial span { color: var(--muted); font-size: .82rem; }
.readiness-panel, .command-panel, .model-review-panel { grid-column: 1 / -1; }
.readiness-item { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; padding: .65rem; display: grid; gap: .25rem; }
.readiness-item.ok { border-color: rgba(34,197,94,.35); background: rgba(34,197,94,.08); }
.readiness-item.warn { border-color: rgba(245,158,11,.35); background: rgba(245,158,11,.08); }
.readiness-item strong { color: #fecaca; }
.readiness-item.ok strong { color: #bbf7d0; }
.readiness-item span { color: var(--muted); font-size: .86rem; line-height: 1.35; }
.workbench-model-card { min-height: 420px; }
.workbench-model-card model-viewer { height: 420px; }

@media (max-width: 860px) {
  .recording-status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .recording-badge { left: .75rem; right: .75rem; min-width: 0; }
  .workbench-grid { grid-template-columns: 1fr; }
  .workbench-hero { grid-template-columns: 1fr; }
  .readiness-dial { max-width: 220px; justify-self: center; }
}

@media (max-width: 560px) {
  .recording-status-grid { grid-template-columns: 1fr; }
  .scan-instruction { font-size: .78rem; }
  .recording-badge strong { font-size: .82rem; }
}

/* Reconstruction Workbench */
.workbench-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; align-items: start; }
.workbench-hero { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem; }
.readiness-dial {
  --readiness: 0%;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  text-align: center;
  background: conic-gradient(var(--brand-primary) var(--readiness), rgba(255,255,255,.10) 0);
  position: relative;
}
.readiness-dial::before { content: ""; position: absolute; inset: 15px; border-radius: 50%; background: #11100d; }
.readiness-dial strong, .readiness-dial span { position: relative; z-index: 1; display: block; }
.readiness-dial strong { color: #fff; font-size: 1.7rem; }
.readiness-dial span { color: var(--muted); font-size: .76rem; max-width: 72px; line-height: 1.2; }
.readiness-panel, .command-panel, .model-review-panel { grid-column: span 1; }
.workbench-model-card { grid-column: auto; margin-top: .75rem; }
.ready-ok, .ready-warn { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 14px; padding: .75rem; display: grid; gap: .25rem; }
.ready-ok { border-color: rgba(34,197,94,.42); background: rgba(34,197,94,.08); }
.ready-warn { border-color: rgba(245,158,11,.42); background: rgba(245,158,11,.08); }
.ready-ok strong { color: #bbf7d0; }
.ready-warn strong { color: #ffedd5; }
.ready-ok span, .ready-warn span { color: var(--muted); }
.advice-box { margin-top: .75rem; border: 1px solid rgba(211,38,44,.24); background: rgba(211,38,44,.08); border-radius: 14px; padding: .75rem; color: #fecaca; font-weight: 700; }
.command-box { min-height: 260px; max-height: 380px; }
@media (max-width: 1080px) { .workbench-grid { grid-template-columns: 1fr; } .readiness-panel, .command-panel, .model-review-panel { grid-column: 1; } }
@media (max-width: 720px) { .workbench-hero { flex-direction: column; align-items: flex-start; } .readiness-dial { width: 110px; height: 110px; } }


/* v6 simplified one-page 3D capture */
.simple-scan-controls .big-action {
  min-height: 56px;
  font-size: 1.02rem;
  font-weight: 900;
  padding-inline: 1.15rem;
}
.advanced-controls {
  margin-top: .75rem;
  padding: .85rem 1rem;
}
.advanced-controls summary {
  cursor: pointer;
  color: #fecaca;
  font-weight: 800;
}
.one-click-result {
  margin-top: .9rem;
  border: 1px solid rgba(211,38,44,.30);
  background: linear-gradient(180deg, rgba(211,38,44,.09), rgba(255,255,255,.035));
  border-radius: 18px;
  padding: 1rem;
}
.result-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.readiness-dial.mini {
  width: 112px;
  height: 112px;
  --readiness: 0%;
  background: conic-gradient(#22c55e var(--readiness), rgba(255,255,255,.10) 0);
}
.readiness-dial.mini strong { font-size: 1.35rem; }
.readiness-dial.mini span { max-width: 58px; }
.result-status-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.045);
  padding: .75rem;
}
.result-status-card small { color: var(--muted); display: block; }
.result-status-card strong { color: #fff; display: block; margin-top: .25rem; }
.result-checks { margin-top: .75rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.simple-command { margin-top: .75rem; min-height: 118px; max-height: 220px; }
@media (max-width: 720px) {
  .simple-scan-controls .big-action { width: 100%; }
  .result-checks { grid-template-columns: 1fr; }
  .readiness-dial.mini { width: 98px; height: 98px; }
}

/* v7 video-to-3D / Gaussian Splatting-style additions */
.video3d-panel { margin-top: .85rem; border-color: rgba(96,165,250,.28); }
.video3d-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; }
.video3d-metrics { margin-top: .75rem; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.splat-fill { background: linear-gradient(90deg, #60a5fa, #ff5258, #f59e0b); }
.file-button.big-action { font-weight: 900; }
@media (max-width: 900px) { .video3d-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .video3d-metrics { grid-template-columns: 1fr; } }

/* v8 PC stereo measurement */
.stereo-grid { display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 1rem; align-items: start; }
.stereo-stage { padding: 1rem; }
.stereo-headline { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .52fr); gap: 1rem; align-items: stretch; margin-bottom: 1rem; }
.stereo-headline h1 { font-size: clamp(1.8rem, 4vw, 3.6rem); }
.quick-start { padding: 1rem; box-shadow: none; }
.quick-start ol { margin: .65rem 0 0 1.15rem; padding: 0; color: #d6d3d1; display: grid; gap: .4rem; font-size: .92rem; line-height: 1.35; }
.stereo-view-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.stereo-wrap { min-height: 0; max-height: none; aspect-ratio: 16/9; }
.corner-label { position: absolute; right: .75rem; top: .75rem; z-index: 5; padding: .4rem .7rem; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; background: rgba(7,7,6,.72); color: #fecaca; font-size: .78rem; font-weight: 800; letter-spacing: .06em; }
.stereo-main-controls { margin-top: 1rem; }
.result-badge { min-width: 180px; text-align: center; padding: .75rem 1rem; border-radius: 999px; border: 1px solid rgba(245,158,11,.45); background: rgba(245,158,11,.12); color: #ffedd5; font-weight: 900; }
.result-badge.good { border-color: rgba(34,197,94,.55); background: rgba(34,197,94,.13); color: #dcfce7; }
.result-badge.warn { border-color: rgba(245,158,11,.75); background: rgba(245,158,11,.16); color: #ffedd5; }
.result-badge.bad { border-color: rgba(239,68,68,.75); background: rgba(239,68,68,.15); color: #fee2e2; }
.stereo-result-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.point-status { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .55rem; margin-bottom: .75rem; }
.point-status div { border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.045); padding: .7rem; display: grid; gap: .2rem; }
.point-status strong { color: #fecaca; font-size: .82rem; }
.point-status span { color: #d6d3d1; font-size: .86rem; }
.cards.four { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 1280px) {
  .stereo-grid { grid-template-columns: 1fr; }
  .cards.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .stereo-headline { grid-template-columns: 1fr; }
  .stereo-view-grid { grid-template-columns: 1fr; }
  .stereo-result-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .cards.four { grid-template-columns: 1fr; }
  .point-status { grid-template-columns: 1fr; }
  .stereo-result-grid { grid-template-columns: 1fr; }
}