/* BIKEFIT//LAB — 電脳 HUD の見た目。暗い紺の上に、シアンの細い線とポップな差し色 */

:root {
  color-scheme: dark;
  --bg: #05080f;
  --bg-2: #0a1120;
  --panel: rgba(13, 22, 40, 0.86);
  --panel-solid: #0d1628;
  --panel-2: #12203a;
  --line: rgba(34, 211, 238, 0.16);
  --line-2: rgba(34, 211, 238, 0.32);
  --grid: #1c2a42;
  --axis: #34486b;
  --ink: #eaf3ff;
  --ink-2: #a9b9d2;
  --muted: #7c8ca8;
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.12);
  --amber: #ffb020;
  --pink: #ff4fa3;
  --good: #0ca30c;
  --warn: #fab219;
  --bad: #d03b3b;
  --series-a: #3987e5;
  --series-b: #d95926;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(34, 211, 238, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(255, 79, 163, 0.07), transparent 60%), var(--bg);
  color: var(--ink);
  font: 15px/1.7 var(--sans);
  overflow-x: hidden;
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(34, 211, 238, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.045) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}
a { color: var(--cyan); }
h1, h2, h3 { line-height: 1.3; margin: 0 0 12px; font-weight: 700; letter-spacing: 0.01em; }
h1 { font-size: clamp(26px, 5vw, 40px); }
h2 { font-size: 21px; }
h3 { font-size: 16px; }
p { margin: 0 0 12px; }
small { color: var(--muted); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

/* ---- ヘッダー ---- */
.top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px max(16px, env(safe-area-inset-left));
  background: rgba(5, 8, 15, 0.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); }
.logo-text { font: 700 16px/1 var(--mono); letter-spacing: 0.08em; }
.logo-text em { color: var(--pink); font-style: normal; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.nav a {
  color: var(--ink-2); text-decoration: none; padding: 6px 10px; border-radius: 8px; font-size: 14px;
}
.nav a:hover { color: var(--ink); background: var(--cyan-dim); }
.nav a.active { color: var(--bg); background: var(--cyan); }

main { max-width: 1160px; margin: 0 auto; padding: 24px 16px 40px; }
.view { display: none; }
.view.active { display: block; animation: fade-in 0.35s ease; }
@keyframes fade-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---- 共通パーツ ---- */
.hud-label {
  font: 600 11px/1 var(--mono); letter-spacing: 0.18em; color: var(--cyan); margin: 0 0 10px; text-transform: uppercase;
}
.panel {
  position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
}
.hud::before, .hud::after {
  content: ""; position: absolute; width: 14px; height: 14px; border: 2px solid var(--cyan); pointer-events: none;
}
.hud::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; border-top-left-radius: var(--radius); }
.hud::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; border-bottom-right-radius: var(--radius); }
.hud-label.corner { position: absolute; top: 12px; left: 16px; z-index: 2; }
.sub { color: var(--ink-2); }
.hint { color: var(--muted); font-size: 13px; margin: 6px 0 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 10px 18px; border-radius: 12px; border: 1px solid var(--line-2);
  font: 600 15px/1.2 var(--sans); color: var(--ink); background: transparent; text-decoration: none; cursor: pointer;
  transition: transform 0.15s, background 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px); background: var(--cyan-dim); }
.btn:active { transform: none; }
.btn.primary {
  background: linear-gradient(135deg, #22d3ee, #3b9dff); color: #031019; border-color: transparent;
  box-shadow: 0 6px 24px rgba(34, 211, 238, 0.28);
}
.btn.primary:hover { box-shadow: 0 8px 30px rgba(34, 211, 238, 0.42); }
.btn.small { min-height: 34px; padding: 6px 12px; font-size: 13px; border-radius: 9px; }
.btn.danger { border-color: rgba(208, 59, 59, 0.5); color: #ff9a9a; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px; border-radius: 999px;
  font: 600 12px/1.6 var(--sans); border: 1px solid; white-space: nowrap;
}
.chip.ok { color: #7ee07e; border-color: rgba(12, 163, 12, 0.55); background: rgba(12, 163, 12, 0.12); }
.chip.warn { color: var(--warn); border-color: rgba(250, 178, 25, 0.5); background: rgba(250, 178, 25, 0.10); }
.chip.bad { color: #ff8f8f; border-color: rgba(208, 59, 59, 0.6); background: rgba(208, 59, 59, 0.14); }
.chip.none { color: var(--ink-2); border-color: var(--line-2); background: transparent; }
.chip.type { color: var(--cyan); border-color: var(--line-2); font-family: var(--mono); letter-spacing: 0.06em; }

/* ---- ホーム ---- */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 24px; align-items: stretch; margin: 8px 0 28px; }
.hero h1 { font-size: clamp(30px, 5.4vw, 52px); letter-spacing: 0.02em; }
.lead { color: var(--ink-2); font-size: 16px; max-width: 36em; }
.badges { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 16px 0 22px; }
.badges li {
  font-size: 13px; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--ink-2);
  background: rgba(34, 211, 238, 0.05);
}
.badges li::before { content: "◆ "; color: var(--pink); font-size: 10px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-holo { min-height: 360px; padding: 0; overflow: hidden; }
.holo-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: pan-y; }
.holo-fallback { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 13px; padding: 20px; text-align: center; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 28px; }
.step-no {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%;
  background: var(--pink); color: #1a0010; font: 800 15px/1 var(--mono); margin-bottom: 10px;
}
.step p { color: var(--ink-2); margin: 0; font-size: 14px; }

.shoot-guide { margin-bottom: 28px; }
.guide-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 20px; align-items: center; }
.guide-figure { width: 100%; height: auto; }
.g-floor { stroke: var(--axis); stroke-width: 2; }
.g-wheel { fill: none; stroke: var(--ink-2); stroke-width: 3; }
.g-bike { fill: none; stroke: var(--cyan); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.g-crank { fill: none; stroke: var(--amber); stroke-width: 3; }
.g-rider { fill: none; stroke: var(--pink); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; opacity: 0.9; }
.g-rider-head { fill: var(--pink); opacity: 0.9; }
.g-cam { fill: var(--amber); }
.g-tripod { stroke: var(--amber); stroke-width: 3; }
.g-ray { stroke: var(--amber); stroke-width: 1.5; stroke-dasharray: 5 5; }
.g-text { fill: var(--ink-2); font: 12px var(--sans); }
.guide-list { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 14px; }
.guide-list li { margin-bottom: 6px; }
.guide-list b { color: var(--ink); }

/* ---- 新しい解析 ---- */
.drop { text-align: center; padding: 36px 18px; border-style: dashed; border-width: 2px; border-color: var(--line-2); margin-top: 8px; }
.drop.dragover { background: var(--cyan-dim); border-color: var(--cyan); }
.drop-label { display: inline-flex; align-items: center; gap: 14px; cursor: pointer; text-align: left; }
.drop-icon {
  display: grid; place-items: center; width: 58px; height: 58px; border-radius: 16px; font-size: 22px;
  background: linear-gradient(135deg, var(--pink), #ff8a3d); color: #1a0010; box-shadow: 0 8px 24px rgba(255, 79, 163, 0.3);
}
.privacy-note { color: var(--muted); font-size: 13px; margin: 16px 0 0; }
.privacy-note::before { content: "🔒 "; }

.setup { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; align-items: start; }
.video-wrap { position: relative; border-radius: 10px; overflow: hidden; background: #000; width: fit-content; max-width: 100%; margin: 0 auto; }
.video-wrap video { display: block; max-width: 100%; max-height: 62vh; width: auto; height: auto; background: #000; }
.video-wrap .player-canvas { display: block; max-width: 100%; max-height: 62vh; width: auto; height: auto; }
.video-wrap .overlay { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.range-row { margin-top: 14px; }
.range-row label { display: block; font-size: 14px; color: var(--ink-2); }
.range-values { display: block; font: 600 14px var(--mono); color: var(--ink); }
.dual-range { position: relative; height: 36px; }
.dual-range input { position: absolute; left: 0; right: 0; width: 100%; top: 6px; pointer-events: none; background: none; -webkit-appearance: none; appearance: none; height: 24px; margin: 0; }
.dual-range input::-webkit-slider-thumb { pointer-events: auto; -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--cyan); border: 3px solid var(--bg); cursor: pointer; }
.dual-range input::-moz-range-thumb { pointer-events: auto; width: 18px; height: 18px; border-radius: 50%; background: var(--cyan); border: 3px solid var(--bg); cursor: pointer; }
.dual-range::before { content: ""; position: absolute; left: 0; right: 0; top: 17px; height: 3px; background: var(--grid); border-radius: 2px; }

.setup-form fieldset { border: 0; padding: 0; margin: 0 0 14px; }
.setup-form legend { font-size: 14px; color: var(--ink-2); margin-bottom: 8px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.seg label { position: relative; }
.seg input { position: absolute; opacity: 0; }
.seg span {
  display: block; text-align: center; padding: 10px 6px; border-radius: 12px; border: 1px solid var(--line-2);
  cursor: pointer; font-weight: 700; line-height: 1.35; font-size: 14px;
}
.seg small { font-weight: 400; font-size: 11px; }
.seg input:checked + span { background: var(--cyan-dim); border-color: var(--cyan); box-shadow: inset 0 0 0 1px var(--cyan); }
.seg input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--ink-2); }
.field small { font-size: 12px; }
select, input[type="text"], input:not([type]), input[name="name"], input[type="number"] {
  min-height: 42px; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line-2);
  background: var(--bg-2); color: var(--ink); font: 15px var(--sans); width: 100%;
}
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

.processing { margin-top: 16px; padding-top: 40px; }
.proc-status { font-weight: 700; font-size: 17px; }
.progress { height: 10px; border-radius: 6px; background: var(--grid); overflow: hidden; margin: 10px 0; }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--cyan), var(--pink)); transition: width 0.2s; }
.proc-meta { font: 13px var(--mono); color: var(--muted); }
.error { margin-top: 14px; padding: 12px 14px; border-radius: 12px; border: 1px solid rgba(208, 59, 59, 0.6); background: rgba(208, 59, 59, 0.12); color: #ffb3b3; }

/* ---- 結果 ---- */
.result-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.result-head h1 { margin-bottom: 6px; }
.result-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--ink-2); font-size: 13px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.summary-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat { padding: 14px 16px; }
.stat-label { font-size: 12px; color: var(--ink-2); margin: 0 0 2px; }
.stat-value { font-size: 30px; font-weight: 700; line-height: 1.2; }
.stat-value small { font-size: 14px; font-weight: 500; margin-left: 2px; }
.stat-foot { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 4px; font-size: 12px; color: var(--muted); }

.advice-list { display: grid; gap: 10px; margin-bottom: 22px; }
.advice { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; padding: 14px 16px; }
.advice h3 { margin: 0 0 4px; }
.advice p { margin: 0; color: var(--ink-2); font-size: 14px; }
.advice-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; font-size: 14px; font-weight: 800; }
.advice.bad .advice-icon { background: rgba(208, 59, 59, 0.2); color: #ff8f8f; }
.advice.warn .advice-icon { background: rgba(250, 178, 25, 0.16); color: var(--warn); }
.advice.ok .advice-icon { background: rgba(12, 163, 12, 0.18); color: #7ee07e; }
.advice.bad { border-color: rgba(208, 59, 59, 0.45); }
.advice.warn { border-color: rgba(250, 178, 25, 0.35); }

.viz-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 14px; margin-bottom: 22px; }
.viz-grid .panel { padding: 14px; }
.player-tools { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; font-size: 13px; color: var(--ink-2); }
.player-tools input[type="range"] { flex: 1; min-width: 140px; accent-color: var(--cyan); }
.holo-panel { min-height: 340px; padding: 0 !important; overflow: hidden; }
.holo-legend { position: absolute; bottom: 10px; left: 14px; right: 14px; display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; color: var(--ink-2); z-index: 2; pointer-events: none; }
.holo-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; vertical-align: -1px; }

.keyframes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 22px; }
.keyframe { padding: 10px; margin: 0; }
.keyframe img, .keyframe canvas { display: block; width: 100%; height: auto; border-radius: 8px; background: #000; }
.keyframe figcaption { display: flex; flex-direction: column; gap: 2px; margin-top: 8px; font-size: 13px; color: var(--ink-2); }
.keyframe figcaption b { color: var(--ink); font-family: var(--mono); }

.section-title { display: flex; align-items: baseline; gap: 12px; margin: 26px 0 12px; }
.section-title h2 { margin: 0; }

.metric-table { width: 100%; border-collapse: collapse; }
.metric-table th, .metric-table td { padding: 12px 10px; border-bottom: 1px solid var(--grid); text-align: left; vertical-align: middle; }
.metric-table th { font: 600 11px var(--mono); letter-spacing: 0.12em; color: var(--muted); text-transform: uppercase; }
.metric-table td.num { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 17px; white-space: nowrap; }
.metric-table td.num small { font-weight: 400; font-size: 12px; display: block; color: var(--muted); }
.metric-table .unit { font-weight: 400; font-size: 12px; color: var(--muted); margin-left: 2px; }
.player-tools select { width: auto; min-height: 34px; padding: 4px 8px; font-size: 13px; }
.metric-name { font-weight: 600; }
.metric-name small { display: block; font-weight: 400; font-size: 12px; line-height: 1.5; }
.metric-group td { padding-top: 18px; font: 600 12px var(--mono); color: var(--cyan); letter-spacing: 0.14em; border-bottom: 1px solid var(--line-2); }
.gauge { width: 100%; min-width: 160px; height: 34px; display: block; }
.norm-note { font-size: 12px; color: var(--muted); margin-top: 2px; }
details.norm-detail summary { cursor: pointer; color: var(--ink-2); font-size: 12px; }
details.norm-detail p { font-size: 12px; color: var(--ink-2); margin: 6px 0; }
details.norm-detail a { font-size: 12px; }

.charts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.chart-card { padding: 14px; }
.chart-card h3 { margin: 0 0 2px; font-size: 15px; }
.chart-card .chart-sub { font-size: 12px; color: var(--muted); margin: 0 0 6px; }
.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .axis-text { fill: var(--muted); font: 11px var(--sans); font-variant-numeric: tabular-nums; }
.chart .band { fill: var(--good); opacity: 0.13; }
.chart .band-edge { stroke: var(--good); stroke-width: 1; opacity: 0.5; }
.chart .band-text { fill: #7ee07e; font: 600 11px var(--sans); }
.chart .iqr { opacity: 0.12; }
.chart .series { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .crosshair { stroke: var(--ink-2); stroke-width: 1; opacity: 0.6; }
.chart .hover-dot { stroke: var(--panel-solid); stroke-width: 2; }
.chart-tip {
  position: absolute; pointer-events: none; z-index: 5; padding: 6px 10px; border-radius: 8px; font-size: 12px; line-height: 1.5;
  background: rgba(5, 8, 15, 0.94); border: 1px solid var(--line-2); color: var(--ink); white-space: nowrap; transform: translate(-50%, -110%);
}
.chart-tip b { font-variant-numeric: tabular-nums; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--ink-2); margin: 0 0 8px; }
.legend i { display: inline-block; width: 16px; height: 3px; border-radius: 2px; vertical-align: 4px; margin-right: 6px; }

.calib { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.calib .panel h3 { margin-bottom: 6px; }
.calib p { font-size: 13px; color: var(--ink-2); }
.level-stage { position: relative; cursor: crosshair; border-radius: 8px; overflow: hidden; background: #000; }
.level-stage img, .level-stage canvas { display: block; width: 100%; height: auto; }
.level-stage .overlay { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }

.warnings { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.warnings li { padding: 10px 12px; border-radius: 10px; font-size: 14px; background: var(--bg-2); border-left: 3px solid var(--muted); color: var(--ink-2); }
.warnings li.warn { border-left-color: var(--warn); }
.warnings li.bad { border-left-color: var(--bad); }
.quality-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 12px; }
.quality-grid div { background: var(--bg-2); border-radius: 10px; padding: 10px 12px; }
.quality-grid b { display: block; font-size: 18px; font-variant-numeric: tabular-nums; }
.quality-grid span { font-size: 12px; color: var(--muted); }

/* ---- 履歴 ---- */
.history-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 18px; }
.history-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.h-card { display: flex; flex-direction: column; gap: 8px; padding: 12px; text-decoration: none; color: var(--ink); transition: border-color 0.15s, transform 0.15s; }
.h-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.h-card img, .h-card .thumb-ph { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 8px; background: var(--bg-2); }
.thumb-ph { display: grid; place-items: center; color: var(--muted); font: 12px var(--mono); }
.h-card .h-title { font-weight: 700; }
.h-card .h-meta { font-size: 12px; color: var(--muted); }
.h-card .h-nums { display: flex; gap: 12px; font-size: 13px; color: var(--ink-2); }
.h-card .h-nums b { color: var(--ink); font-variant-numeric: tabular-nums; }
.empty { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--line-2); border-radius: var(--radius); }

/* ---- 比較 ---- */
.compare-pick { display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: end; margin-bottom: 18px; }
.delta-up { color: var(--ink); }
.delta-cell { font-variant-numeric: tabular-nums; white-space: nowrap; }
.delta-cell .arrow { color: var(--muted); }
.pose-overlay svg { width: 100%; height: auto; display: block; }

/* ---- しくみ ---- */
.prose { max-width: 820px; }
.prose h2 { margin-top: 28px; }
.prose p, .prose li { color: var(--ink-2); }
.prose table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 10px 0; }
.prose th, .prose td { border-bottom: 1px solid var(--grid); padding: 8px; text-align: left; vertical-align: top; }
.prose th { color: var(--ink); }
.source-list li { margin-bottom: 8px; }

/* ---- フッター・トースト ---- */
.foot { max-width: 1160px; margin: 0 auto; padding: 24px 16px 40px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--line); }
.foot p { margin: 0 0 6px; }
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  padding: 10px 16px; border-radius: 12px; background: var(--panel-2); border: 1px solid var(--line-2); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  animation: fade-in 0.25s ease;
}

/* ---- 狭い画面 ---- */
@media (max-width: 900px) {
  .hero, .setup, .viz-grid, .guide-grid, .calib { grid-template-columns: minmax(0, 1fr); }
  .hero-holo { min-height: 300px; }
  .charts { grid-template-columns: minmax(0, 1fr); }
  .summary-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .top { flex-direction: column; align-items: flex-start; gap: 6px; }
  .nav { justify-content: flex-start; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .keyframes { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .keyframe { padding: 6px; }
  .keyframe figcaption { flex-direction: column; gap: 0; font-size: 11px; }
  .field-row { grid-template-columns: minmax(0, 1fr); }
  .compare-pick { grid-template-columns: minmax(0, 1fr); }
  .metric-table .col-gauge { display: none; }
  .stat-value { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}