:root{color-scheme:light;--ink:#17273a;--muted:#596575;--red:#bc1735;--red-hover:#9f102c;--paper:#fff;--soft:#f3f5f7;--line:#dbe1e7;--green:#24704a;--focus:#1c64aa;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--focus);outline-offset:4px}[hidden]{display:none!important}h1,h2,p{margin-top:0}h1{font-size:clamp(2rem,4vw,3.25rem);line-height:1.08;letter-spacing:-.04em;font-weight:720;margin-bottom:16px}h2{font-size:1.125rem;line-height:1.35;font-weight:650;margin-bottom:16px}p{line-height:1.6}code{font-size:.9em;overflow-wrap:anywhere}
.site-header{min-height:82px;max-width:1280px;padding:22px 44px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;gap:15px;align-items:center;text-decoration:none;font-size:1.1rem;font-weight:600}.brand-mark{color:var(--red);font-size:1.65rem;font-weight:800;letter-spacing:-.06em;padding-right:15px;border-right:1px solid var(--line)}nav{display:flex;gap:26px}.nav-link{font-size:.95rem;color:var(--muted);text-decoration:none}.nav-link.current{color:var(--ink);font-weight:650}.nav-link:hover{text-decoration:underline}.operator-layout{max-width:1120px;margin:0 auto;padding:52px 36px 26px}.page-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;margin-bottom:36px}.page-heading p{color:var(--muted);max-width:530px;margin-bottom:0}.connection-badge{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;padding:9px 12px;border-radius:6px;font-size:.82rem;font-weight:550;background:var(--soft);color:var(--muted)}.connection-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:#8995a3}.connection-badge.is-connected::before{background:var(--green)}.connection-badge.is-connected{color:var(--green);background:#f0f7f2}.connection-badge.is-disconnected{color:#8b4b14;background:#fff4e8}.connection-badge.is-disconnected::before{background:#ad6823}
.speech-workspace{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden}.microphone-panel{padding:38px 30px 32px;display:flex;align-items:center;flex-direction:column;justify-content:center;min-height:354px;background:var(--soft)}.microphone-icon{width:78px;height:78px;display:grid;place-items:center;color:var(--muted);border:1px solid #d7dde4;border-radius:50%;background:var(--paper);margin-bottom:19px}.microphone-icon svg{width:40px;height:40px}.microphone-icon.is-sending{color:var(--red);border-color:#e8aab6;animation:microphone-pulse 1.4s ease-in-out infinite}.microphone-status{font-size:.92rem;font-weight:550;margin-bottom:18px;min-height:1.5em;text-align:center}.microphone-hint{font-size:.8rem;color:var(--muted);max-width:290px;text-align:center;margin:15px 0 0;min-height:2.6em}.button{border:0;border-radius:6px;display:inline-flex;justify-content:center;align-items:center;gap:11px;padding:13px 20px;font-weight:650;line-height:1.3;min-height:46px}.button-primary{background:var(--red);color:#fff}.button-primary:hover:not(:disabled){background:var(--red-hover)}.record-button{min-width:230px}.button-symbol{font-size:.75rem}.record-button.is-recording{background:var(--ink)}.record-button.is-recording:hover:not(:disabled){background:#2a405a}.settings-panel{padding:32px;display:flex;flex-direction:column;justify-content:center}.language-row{display:flex;align-items:end;gap:10px}.field{flex:1;min-width:0}.field label,.login-panel label{display:block;font-size:.8rem;font-weight:600;margin-bottom:8px;color:var(--muted)}select,input{width:100%;color:var(--ink);background:#fff;border:1px solid #bec8d3;border-radius:5px;min-height:45px;padding:10px 12px}select{padding-right:20px}select:disabled{background:#f7f8fa;color:#596575;opacity:1}.icon-button{border:1px solid var(--line);background:var(--paper);color:var(--ink);width:43px;height:45px;border-radius:5px;flex-shrink:0;font-size:1.3rem}.icon-button:hover:not(:disabled){background:var(--soft)}.provider-field{margin-top:22px}.field-help{font-size:.77rem;color:var(--muted);margin:8px 0 0}.reader-link{border-top:1px solid var(--line);padding-top:20px;margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px}.reader-link>span{font-size:.78rem;color:var(--muted);width:100%}.reader-link>a{font-size:.9rem;font-weight:600}.text-button{padding:7px 0;border:0;background:none;color:var(--muted);font-size:.83rem;text-decoration:underline;text-underline-offset:3px}.text-button:hover{color:var(--ink)}
.transcript-panel{margin-top:34px}.section-heading{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:14px}.section-heading h2{margin:0}.section-heading>span{font-size:.8rem;color:var(--muted)}.operator-transcript{border-top:1px solid var(--line);padding:21px 0;max-height:300px;overflow-y:auto;scrollbar-gutter:stable}.operator-transcript p{font-size:1rem;line-height:1.65;margin-bottom:12px;max-width:78ch;overflow-wrap:anywhere}.operator-transcript p:last-child{margin-bottom:0}.empty-text{color:var(--muted)}.page-footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;font-size:.76rem;color:var(--muted);padding-top:20px;margin-top:28px}.notice,.error-message{border-left:3px solid var(--red);background:#fff2f4;padding:15px 18px;font-size:.9rem;line-height:1.6;margin-bottom:22px;overflow-wrap:anywhere}.notice p{margin:5px 0 0}.login-panel{background:var(--soft);border-radius:8px;padding:24px;margin-bottom:24px;max-width:560px}.login-panel h2{margin-bottom:8px}.login-panel>p{font-size:.9rem;color:var(--muted)}.login-row{display:flex;gap:12px}.login-row input{min-width:0}.login-panel .error-message{margin:15px 0 0}
.reader-layout{max-width:950px;padding:58px 36px 30px;margin:0 auto}.reader-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding-bottom:27px}.reader-heading h1{font-size:clamp(2.1rem,4vw,3rem);margin-bottom:11px}.reader-heading p{font-size:.95rem;color:var(--muted);margin:0}.reader-tools{display:flex;align-items:center;gap:17px}.text-size{font-size:1rem;font-weight:600}.text-size[aria-pressed="true"],.audio-toggle[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}.audio-toggle{font-size:1.05rem}.reader-empty{max-width:470px;margin:70px auto 85px;text-align:center}.empty-glyph{display:block;font-size:5.7rem;line-height:.8;letter-spacing:-.06em;color:#bec8d3;margin-bottom:26px}.reader-empty h2{font-size:1.4rem;font-weight:600}.reader-empty p{font-size:.95rem;color:var(--muted)}.translation-list{margin-top:32px}.translation-session{margin:32px 0 44px}.session-label{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:.78rem;font-weight:550;margin-bottom:20px}.session-label time{font-weight:400}.translation-paragraph{font-size:1.4rem;line-height:1.7;letter-spacing:-.015em;overflow-wrap:anywhere;margin:0 0 24px;white-space:pre-wrap}.translation-list.large-text .translation-paragraph{font-size:1.8rem}.reader-page .page-footer{margin-top:48px}.new-text-button{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);box-shadow:0 3px 14px #17273a26;white-space:nowrap}.reader-page .error-message{margin-top:22px}
@keyframes microphone-pulse{0%,100%{box-shadow:0 0 0 0 #bc17351c;transform:scale(1)}50%{box-shadow:0 0 0 11px #bc173500;transform:scale(1.05)}}
@media(max-width:760px){.site-header{padding:20px 22px;min-height:73px}.operator-layout,.reader-layout{padding:32px 22px 25px}.page-heading{gap:20px;flex-wrap:wrap;margin-bottom:26px}.page-heading p{font-size:.93rem}.page-heading .connection-badge{margin-top:-4px}.speech-workspace{grid-template-columns:1fr}.microphone-panel{min-height:306px;padding:27px 22px}.settings-panel{padding:27px 22px}.reader-heading{align-items:flex-start;flex-direction:column;gap:17px}.reader-tools{width:100%;justify-content:space-between}.reader-empty{margin-top:60px}.translation-paragraph{font-size:1.23rem;line-height:1.7}.translation-list.large-text .translation-paragraph{font-size:1.6rem}.page-footer{flex-wrap:wrap}.brand{gap:11px;font-size:1rem}.brand-mark{font-size:1.5rem;padding-right:11px}nav{gap:17px}.nav-link{font-size:.84rem}.reader-page .connection-badge{font-size:.75rem;padding:8px}.new-text-button{bottom:18px}.translation-session{margin-bottom:36px}}
@media(max-width:380px){.site-header{padding:17px 16px}.operator-layout,.reader-layout{padding-left:16px;padding-right:16px}.settings-panel{padding:24px 16px}.language-row{gap:7px}.language-row .icon-button{width:35px}.brand{gap:8px}.brand-mark{padding-right:8px}.field label{font-size:.73rem}.connection-badge{font-size:.75rem}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;scroll-behavior:auto!important}.microphone-icon.is-sending{box-shadow:0 0 0 5px #bc17351c}}
.transcript-actions{display:flex;align-items:center;justify-content:flex-end;gap:16px}.transcript-actions>span{font-size:.8rem;color:var(--muted)}.button-secondary{border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:.85rem;white-space:nowrap}.button-secondary:hover:not(:disabled){background:var(--soft)}#reset-status{margin:0 0 14px}@media(max-width:540px){.transcript-panel .section-heading{align-items:flex-start}.transcript-actions{flex-wrap:wrap;gap:8px;max-width:55%}.transcript-actions>span{order:2;width:100%;text-align:right}}
.stt-field{margin-top:22px}
.translation-toggle-field{margin:0 0 20px}.translation-toggle{display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:600;cursor:pointer}.translation-toggle input{width:19px;height:19px;min-height:19px;padding:0;margin:0;flex-shrink:0;accent-color:var(--red)}.translation-toggle:has(input:disabled){cursor:not-allowed;color:var(--muted)}.transcript-help{margin:0 0 14px}
.login-screen{min-height:320px;display:grid;place-items:center;padding:24px 0}.login-screen .login-panel{width:100%;max-width:460px;margin:0;padding:28px}
.chatgpt-panel{margin-top:18px;padding:16px;background:var(--soft);border-radius:7px}.chatgpt-heading{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 12px}.chatgpt-heading h3{font-size:.85rem;font-weight:650;margin:0}.chatgpt-heading>span{font-size:.73rem;color:var(--muted)}.chatgpt-account{font-size:.8rem;overflow-wrap:anywhere;margin:9px 0 0}.chatgpt-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px}.chatgpt-actions .button{min-height:40px;padding:10px 12px;font-size:.8rem}.chatgpt-device{margin-top:14px}.chatgpt-device>p:first-child{font-size:.82rem;margin-bottom:9px}.chatgpt-code-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 15px;margin-bottom:12px}.chatgpt-code-row code{font-size:1.1rem;font-weight:650;letter-spacing:.04em;padding:6px 10px;border:1px solid var(--line);border-radius:4px;background:var(--paper)}.chatgpt-verification-link{font-size:.82rem;font-weight:600}.chatgpt-verification-link[aria-disabled="true"]{opacity:.5;cursor:not-allowed}.chatgpt-error{font-size:.8rem;line-height:1.5;color:var(--red);overflow-wrap:anywhere;margin:12px 0 0}
.live-paragraph { white-space: pre-wrap; }
.openai-live-panel { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line, #dfe4e8); }
.openai-live-panel h3 { margin: 0 0 8px; font-size: 1rem; }
.openai-live-panel input { width: 100%; box-sizing: border-box; }
.openai-live-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 10px; }
.openai-live-usage { display: grid; gap: 8px; margin-top: 18px; }
.openai-live-usage p { margin: 0; display: grid; gap: 3px; font-size: 0.86rem; }
.openai-live-usage strong { font-weight: 600; overflow-wrap: anywhere; }

/* Capture activity is driven by measured PCM, delivery by server ACKs. */
.recording-feedback{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 20px;padding:15px 20px;margin-bottom:16px;border:1px solid #d5dee7;border-radius:8px;background:#f3f5f7;box-shadow:0 3px 12px #17273a0d}
.recording-feedback strong{display:flex;align-items:center;gap:10px;font-size:1rem;line-height:1.4}
.recording-feedback strong::before{content:"";width:10px;height:10px;flex-shrink:0;border-radius:50%;background:currentColor}
.recording-feedback[data-state="sending"],.recording-feedback[data-state="quiet"]{color:#9f102c;background:#fff2f4;border-color:#e8aab6}
.recording-feedback[data-state="waiting"],.recording-feedback[data-state="warning"]{color:#80500d;background:#fff6e8;border-color:#dfbf88}
.audio-received-label{display:flex;align-items:center;gap:12px;font-size:.8rem;color:var(--muted)}
.audio-received-label b{font-size:1.15rem;font-variant-numeric:tabular-nums;letter-spacing:.03em;color:var(--ink)}
.microphone-status{font-size:.95rem;font-weight:650;margin-bottom:18px}
.microphone-icon.is-receiving{color:var(--green);border-color:#88b89b;background:#edf6f0}
.microphone-icon.is-sending{color:white;background:var(--red);border-color:var(--red);animation:microphone-pulse 1s ease-in-out infinite}
.microphone-icon.has-input-warning{color:#80500d;background:#fff6e8;border-color:#dfbf88}
@keyframes microphone-pulse{0%,100%{box-shadow:0 0 0 3px #bc173522;transform:scale(1)}50%{box-shadow:0 0 0 12px #bc17351f;transform:scale(1.07)}}
.audio-level-panel{width:270px;max-width:100%;margin-bottom:20px}
.audio-level-heading{font-size:.78rem;font-weight:650;color:var(--muted);margin-bottom:8px;text-align:center}
.audio-level{height:13px;overflow:hidden;border-radius:7px;background:#dce2e8;border:1px solid #c4cdd7}
.audio-level>span{display:block;width:100%;height:100%;border-radius:6px;background:var(--green);transform:scaleX(0);transform-origin:left center;transition:transform .1s linear}
.audio-level-panel p{font-size:.8rem;text-align:center;color:var(--muted);margin:8px 0 0}
.audio-level-help{max-width:290px;font-size:.72rem;text-align:center;color:var(--muted);margin:10px 0 0}
.transcript-actions>span{max-width:320px;line-height:1.5;color:var(--ink)}
@media(max-width:760px){.recording-feedback{padding:12px 14px}.recording-feedback strong{font-size:.9rem}.audio-received-label{font-size:.75rem}.transcript-panel .section-heading{align-items:flex-start;flex-wrap:wrap}.transcript-actions{width:100%;justify-content:space-between}}
@media(prefers-reduced-motion:reduce){.audio-level>span{transition:none}}