:root{--v-good: #1a6633;--v-good-bg: #e2f3e7;--v-fair: #7a4600;--v-fair-bg: #fcefd2;--v-bad: #a3221b;--v-bad-bg: #fde3e0;--v-na: #4f4f4f;--v-bar: 104px}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--v-good: #8fe0a8;--v-good-bg: #1c3324;--v-fair: #f2c66d;--v-fair-bg: #3a2f1a;--v-bad: #ffa199;--v-bad-bg: #3f2120;--v-na: #b8b8b8}}:root[data-theme=dark]{--v-good: #8fe0a8;--v-good-bg: #1c3324;--v-fair: #f2c66d;--v-fair-bg: #3a2f1a;--v-bad: #ffa199;--v-bad-bg: #3f2120;--v-na: #b8b8b8}*{box-sizing:border-box}body{min-height:100vh}.app{max-width:640px;margin:0 auto;padding:0 var(--j-s5) var(--j-s8)}.app-signed-in{padding-bottom:calc(var(--v-bar) + var(--j-s8))}.top{padding:var(--j-s2) 0 var(--j-s3);border-bottom:var(--j-rule-w) solid var(--j-rule)}.title-row{display:flex;align-items:center;gap:var(--j-s2);flex-wrap:wrap}.top h1{margin:0;font-size:var(--j-t-h3);font-weight:800;letter-spacing:-.01em;line-height:1.1}.top .j-mark{width:40px;height:24px}.hub-link{display:inline-flex;align-items:center;gap:2px;min-height:44px;margin-left:-6px;padding-right:var(--j-s2);font-weight:700;text-decoration:none;white-space:nowrap}.hub-link svg{width:22px;height:22px;flex:none}.hub-link:hover,.guide-link:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}.meta-row{display:flex;align-items:center;justify-content:space-between;gap:var(--j-s3);font-size:var(--j-t-small)}.guide-link{display:inline-flex;align-items:center;min-height:44px;flex:none;font-weight:700}.user-bar{display:flex;flex:1;justify-content:flex-end;align-items:center;gap:var(--j-s3);min-width:0}.user-email{color:var(--j-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.user-bar .btn-small{flex:none}.foot{margin-top:var(--j-s6);padding-top:var(--j-s4);border-top:var(--j-rule-w) solid var(--j-hair)}.btn-small{min-height:44px;font-size:var(--j-t-small);padding:0 var(--j-s3)}:where(button,a,input,select,textarea,summary,[tabindex]):focus-visible{outline:3px solid var(--j-app);outline-offset:2px}.intro{margin:var(--j-s6) 0 0;font-size:var(--j-t-lead);line-height:1.45;max-width:34ch}.auth-container{margin:var(--j-s6) 0 0;padding-top:var(--j-s4);border-top:var(--j-rule-w) solid var(--j-hair)}.auth-container h2{margin:0 0 var(--j-s2);font-size:var(--j-t-h2);font-weight:800;letter-spacing:-.02em}.auth-message{color:var(--j-ink);margin:0 0 var(--j-s4)}.auth-btn{width:100%;min-height:56px}.auth-error{color:var(--j-danger);margin:var(--j-s3) 0 0}.filters{display:flex;gap:var(--j-s3);font-size:var(--j-t-small);overflow-x:auto;border-bottom:var(--j-rule-w) solid var(--j-hair);margin-top:var(--j-s2)}.btn-filter{flex:none;min-height:44px;padding:0 2px;margin-bottom:calc(-1 * var(--j-rule-w));border:0;border-bottom:4px solid transparent;border-radius:0;background:none;color:var(--j-muted);font:inherit;font-weight:700;cursor:pointer}.btn-filter[aria-pressed=true]{color:var(--j-ink);border-bottom-color:var(--j-ink)}.phrase-nav{margin:var(--j-s3) 0 0;color:var(--j-muted);font-size:var(--j-t-small);font-variant-numeric:tabular-nums}.keys-hint{margin:var(--j-s6) 0 0;color:var(--j-muted);font-size:var(--j-t-small)}@media(hover:none){.keys-hint{display:none}}.phrase-card{padding:var(--j-s2) 0 var(--j-s4);border-bottom:var(--j-rule-w) solid var(--j-rule)}.phrase-level{margin:0;color:var(--j-muted);font-size:var(--j-t-small)}.phrase-text{margin:var(--j-s2) 0 var(--j-s3);font-size:var(--j-t-h1);font-weight:800;letter-spacing:-.02em;line-height:1.15}.colored-word{border-radius:var(--j-radius);padding:0 3px}.colored-word.score-good,.phoneme.score-good,.legend-item.score-good{background:var(--v-good-bg);color:var(--v-good)}.colored-word.score-fair,.phoneme.score-fair,.legend-item.score-fair{background:var(--v-fair-bg);color:var(--v-fair);text-decoration:underline dotted;text-decoration-thickness:2px;text-underline-offset:4px}.colored-word.score-bad,.phoneme.score-bad,.legend-item.score-bad{background:var(--v-bad-bg);color:var(--v-bad);text-decoration:underline wavy;text-decoration-thickness:2px;text-underline-offset:4px}.transcription-row{display:flex;align-items:baseline;gap:var(--j-s1);margin-bottom:var(--j-s2)}.transcription-label{font-size:var(--j-t-small);font-weight:700;color:var(--j-muted);min-width:72px;flex-shrink:0}.transcription-bracket{font-size:var(--j-t-h3);color:var(--j-muted);-webkit-user-select:none;user-select:none}.transcription-row.arpabet .transcription-bracket{font-size:var(--j-t-body)}.transcription-row.arpabet 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dashed;text-underline-offset:4px}.phoneme.mismatch{font-weight:700}.mismatch-dot{position:absolute;top:-2px;right:-2px;width:6px;height:6px;border-radius:50%;background:currentColor}.phoneme.chain-ok{background:var(--v-good-bg);color:var(--v-good)}.phoneme.chain-close{background:var(--v-fair-bg);color:var(--v-fair);text-decoration:underline dotted;text-decoration-thickness:2px;text-underline-offset:4px}.phoneme.chain-sub{background:var(--v-bad-bg);color:var(--v-bad);font-weight:700;text-decoration:underline wavy;text-decoration-thickness:2px;text-underline-offset:4px}.phoneme.chain-del{background:var(--v-bad-bg);color:var(--v-bad);text-decoration:underline wavy;text-decoration-thickness:2px;text-underline-offset:4px}.phoneme.chain-ins{color:var(--v-bad);text-decoration:underline wavy;text-decoration-thickness:2px;text-underline-offset:4px}.chain-summary{font-size:var(--j-t-small);color:var(--j-muted);margin:0 0 var(--j-s2)}.score-legend{display:flex;flex-wrap:wrap;gap:var(--j-s3);margin:var(--j-s2) 0;font-size:var(--j-t-small)}.legend-item{padding:0 var(--j-s1);border-radius:3px}.tech{margin:var(--j-s2) 0 0;font-size:var(--j-t-small)}.tech summary{display:inline-flex;align-items:center;min-height:44px;color:var(--j-muted);font-weight:700;cursor:pointer}.bar{position:fixed;left:0;right:0;bottom:0;z-index:5;background:var(--j-bg);border-top:var(--j-rule-w) solid var(--j-rule)}.bar-in{max-width:640px;margin:0 auto;padding:var(--j-s3) var(--j-s5) max(var(--j-s5),env(safe-area-inset-bottom))}.record-actions{display:grid;grid-template-columns:64px 1fr 64px;gap:var(--j-s3)}.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:var(--j-s3)}.btn-bar{min-height:64px;padding:0 var(--j-s2);font-size:var(--j-t-lead)}@media(max-width:420px){.btn-bar{font-size:var(--j-t-body)}}.btn-nav{min-height:64px;height:64px;width:64px;padding:0}.btn-record.recording{background:var(--j-ink);border-color:var(--j-ink);color:var(--j-bg)}.rec-dot{width:14px;height:14px;border-radius:50%;background:var(--j-danger);display:inline-block;animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.status-msg{margin:0 0 var(--j-s2);font-size:var(--j-t-small);color:var(--j-muted)}.error-msg{color:var(--j-danger);font-weight:700}.loading{padding:var(--j-s8) 0;color:var(--j-muted)}.score-header{display:flex;align-items:baseline;flex-wrap:wrap;gap:var(--j-s3);margin:var(--j-s2) 0 0}.overall-score{font-size:var(--j-t-h2);font-weight:800;font-variant-numeric:tabular-nums}.overall-word{font-size:var(--j-t-lead);font-weight:700}.cefr-badge{color:var(--j-muted);font-size:var(--j-t-small)}.phoneme.phoneme-active,.colored-word.word-active{outline:2px solid var(--j-ink);outline-offset:1px}.articulation-block{display:flex;flex-direction:column;align-items:flex-start;gap:var(--j-s2);margin-top:var(--j-s4)}.articulation-views{display:flex;gap:var(--j-s3);align-items:stretch;flex-wrap:wrap}.articulation-svg-wrap{position:relative;background:#fff;border:var(--j-rule-w) solid var(--j-hair);border-radius:var(--j-radius);overflow:hidden;display:flex;align-items:center;justify-content:center}.articulation-svg-wrap.score-good{border-color:var(--v-good)}.articulation-svg-wrap.score-fair{border-color:var(--v-fair);border-style:dotted}.articulation-svg-wrap.score-bad{border-color:var(--v-bad);border-style:dashed}.sagittal-img{display:block;width:100%;height:100%;object-fit:contain;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.sagittal-base{position:absolute;top:0;right:0;bottom:0;left:0}.sagittal-layer{position:absolute;top:0;right:0;bottom:0;left:0;transition:opacity .14s ease}.sagittal-layer.is-visible{opacity:1}.sagittal-layer.is-hidden{opacity:0}.airflow-overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none}@keyframes plosive-burst{0%{transform:translate(0);opacity:.9}60%{transform:translate(-20px,-6px);opacity:.6}to{transform:translate(-34px,-10px);opacity:0}}.plosive-dot{animation:plosive-burst .45s ease-out forwards}@keyframes fricative-stream{0%{transform:translate(0);opacity:0}10%{opacity:.7}to{transform:translate(-40px,-4px);opacity:0}}.fricative-dot{animation:fricative-stream .8s ease-out infinite}.articulation-step-indicator{font-size:var(--j-t-small);color:var(--j-muted);font-variant-numeric:tabular-nums}.lyon-video-wrap{background:#000;position:relative}.lyon-video{width:100%;height:100%;object-fit:contain;display:block;background:#000}.lyon-video-status{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:var(--j-t-small);background:#000000a6;pointer-events:none}.lyon-video-failed{font-weight:700}.articulation-attribution{font-size:var(--j-t-small);color:var(--j-muted)}.articulation-controls{display:flex;gap:var(--j-s3) var(--j-s5);align-items:center;flex-wrap:wrap;margin-top:var(--j-s4);padding-top:var(--j-s3);border-top:var(--j-rule-w) solid var(--j-hair);font-size:var(--j-t-small)}.art-toggle{display:inline-flex;align-items:center;gap:var(--j-s2);min-height:44px;cursor:pointer;font-weight:700}.art-toggle input{width:22px;height:22px;accent-color:var(--j-ink)}.art-view-switch{display:inline-flex;gap:0}.art-speed{display:inline-flex;align-items:center;gap:var(--j-s2);min-height:44px}.art-speed input[type=range]{width:110px;accent-color:var(--j-ink)}.art-speed-value{min-width:34px;text-align:right;font-variant-numeric:tabular-nums}.art-step-controls{display:inline-flex;gap:var(--j-s2);align-items:center;flex-wrap:wrap}.btn-step{min-height:44px;min-width:44px;padding:0 var(--j-s3);font:inherit;font-weight:700;color:var(--j-ink);background:transparent;border:var(--j-rule-w) solid var(--j-ink);border-radius:var(--j-radius);cursor:pointer}.art-view-switch .btn-step+.btn-step{margin-left:calc(-1 * var(--j-rule-w))}.btn-step[aria-pressed=true]{background:var(--j-ink);color:var(--j-bg)}.btn-step:disabled{opacity:.45;cursor:not-allowed}.btn-icon{display:inline-flex;align-items:center;justify-content:center;padding:0}.btn-stop{color:var(--j-danger);border-color:var(--j-danger)}