/* Foundations: two typefaces, two sizes, one restrained accent. */
:root{
 color-scheme:light;font-family:var(--ui-font-family);font-synthesis:none;
 --ui-font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
 --reading-font-family:Georgia,"Iowan Old Style","Palatino Linotype","Noto Serif CJK SC",serif;
 --ui-font-size:20px;--reading-font-size:24px;--sidebar-width:304px;
 --bg:#faf9f6;--sidebar:#f0f0eb;--surface:#fffefa;--text:#242922;--muted:#62695e;
 --border:#daddd2;--hover:#e7eadf;--selected:#e0e7d8;--accent:#526943;--primary:#354b2b;
 --on-primary:#fff;--danger:#a23f32;--danger-bg:#f9e9e4;--selection:#d4e3c6;--scrim:#17201666;
 --radius:6px;--space:8px;
}
:root[data-theme=dark]{
 color-scheme:dark;--bg:#1b1d1c;--sidebar:#151816;--surface:#222622;--text:#eceee6;--muted:#b0b8a9;
 --border:#383f36;--hover:#2b3328;--selected:#303e2b;--accent:#bed4aa;--primary:#d3e4c3;
 --on-primary:#202c19;--danger:#f0a796;--danger-bg:#432923;--selection:#4c6240;--scrim:#0009;
}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text)}
body{font-size:var(--ui-font-size);line-height:1.5}button,input,textarea,select{font:inherit}
button{color:inherit;cursor:pointer;border:0}button,a{-webkit-tap-highlight-color:transparent}
button:disabled{opacity:.45;cursor:not-allowed}a{color:inherit;text-decoration:none}
svg{display:block;width:20px;height:20px;flex-shrink:0}[hidden]{display:none!important}
::selection{background:var(--selection);color:var(--text)}
:focus:not(:focus-visible){outline:none}:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.skip-link{position:fixed;left:16px;top:-80px;z-index:200;padding:10px 16px;background:var(--surface);border:1px solid var(--accent);border-radius:var(--radius)}.skip-link:focus{top:12px}
/* Navigation */
.app-shell{height:100dvh}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-width);padding:28px 16px 16px;display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--sidebar);z-index:20}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:var(--reading-font-size);font-weight:650;letter-spacing:-.6px;margin:0 8px 28px;line-height:1.4}.brand-mark{width:28px;height:28px;color:var(--accent)}
.new-session{display:flex;align-items:center;gap:12px;width:100%;min-height:52px;padding:10px 14px;text-align:left;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);font-weight:550}.new-session:hover{border-color:var(--accent);background:var(--hover)}
.sidebar-label{padding:26px 12px 10px;font-size:var(--ui-font-size);font-weight:550;color:var(--muted)}
.session-list{flex:1;min-height:0;overflow:auto;scrollbar-width:thin}.session-item{margin-bottom:4px;border:1px solid transparent;border-radius:var(--radius)}.session-item:hover{background:var(--hover)}.session-item.active{background:var(--selected);border-color:var(--border)}
.session-open{display:block;width:100%;padding:12px;background:transparent;text-align:left;min-height:78px;border-radius:var(--radius)}.session-name{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.session-date{display:block;font-size:var(--ui-font-size);margin-top:4px;color:var(--muted);font-variant-numeric:tabular-nums}.sidebar-empty{padding:8px 12px;color:var(--muted);font-size:var(--ui-font-size)}
.sidebar-footer{border-top:1px solid var(--border);padding-top:12px;margin-top:16px}.account-name{font-size:var(--ui-font-size);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:4px 12px 8px;color:var(--muted)}
.account-button{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:10px 12px;background:transparent;border-radius:var(--radius);text-align:left;color:var(--muted)}.account-button:hover{background:var(--hover);color:var(--text)}#themeToggle[aria-pressed=true]{color:var(--text)}
/* Header and direct document actions */
.main{margin-left:var(--sidebar-width);height:100dvh;min-width:0;display:flex;flex-direction:column}.workspace-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 24px;border-bottom:1px solid var(--border);min-height:88px;flex-shrink:0}
.heading{display:flex;align-items:center;gap:12px;min-width:0;flex:1}.heading h1{font-size:var(--reading-font-size);font-weight:550;line-height:1.35;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.35px}
.icon-button{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--radius);background:transparent;color:var(--muted);flex-shrink:0}.icon-button:hover{background:var(--hover);color:var(--text)}.mobile-menu{display:none}
.header-tools{display:flex;align-items:flex-start;gap:12px;flex-shrink:0}.copy-button,.translate-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:9px 16px;border-radius:var(--radius);white-space:nowrap;font-weight:500}
.copy-button{width:140px;flex:0 0 140px;justify-content:flex-start;background:var(--surface);border:1px solid var(--accent);color:var(--text)}.copy-button svg{width:24px;height:24px}.copy-button:hover{background:var(--selected)}.copy-button[aria-busy=true]{cursor:progress;opacity:1}#copyTextLabel{flex:1;text-align:left}
.translation-controls{display:flex;flex-direction:column;align-items:flex-end;gap:6px}.translate-button{background:transparent;border:1px solid var(--border);color:var(--muted)}.translate-button:hover,.translate-button[aria-pressed=true]{background:var(--selected);border-color:var(--accent);color:var(--text)}.translation-status{font-size:var(--ui-font-size);max-width:260px;line-height:1.4;color:var(--muted);overflow-wrap:anywhere}
.actions{position:relative}.actions-menu{position:absolute;top:52px;left:0;width:min(340px,calc(100vw - 32px));padding:6px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 8px 24px #00000012;z-index:30}.actions-menu button{display:block;width:100%;min-height:48px;padding:10px 12px;text-align:left;background:transparent;border-radius:4px;line-height:1.4}.actions-menu button:hover{background:var(--hover)}.danger-text{color:var(--danger)}
/* Continuous reading surface uses the entire workspace. */
.reading-pane{display:flex;flex-direction:column;flex:1;min-height:0;padding:24px 24px 16px}.transcript-body{position:relative;display:flex;flex-direction:column;flex:1;min-height:0;width:100%;max-width:none;margin:0}
.transcript{display:block;flex:1;width:100%;min-height:0;padding:0 8px 24px 0;border:0;background:transparent;color:var(--text);font-family:var(--reading-font-family);font-size:var(--reading-font-size);line-height:1.65;letter-spacing:0;overflow:auto;overflow-wrap:anywhere;white-space:normal;user-select:text;scrollbar-width:thin;scrollbar-color:var(--border) transparent;overflow-anchor:none}
.transcript:focus,.transcript:focus-visible{outline:none;box-shadow:none}.keyboard-navigation .transcript:focus{outline:1px dashed var(--accent);outline-offset:6px}
.transcript-paragraph{margin:0 0 1.2em}.paragraph-original{font:inherit;line-height:1.65;margin:0;white-space:pre-wrap}.paragraph-translation{font-family:var(--ui-font-family);font-size:var(--ui-font-size);line-height:1.7;letter-spacing:0;margin:14px 0 0;padding-left:16px;border-left:2px solid var(--border);color:var(--muted);white-space:pre-wrap}
.document-window{display:flow-root;position:relative;min-height:0}.document-spacer{width:1px;pointer-events:none;flex-shrink:0}
.empty-state{position:absolute;left:0;right:0;top:clamp(48px,12vh,144px);pointer-events:none}.empty-state h2{font-size:var(--reading-font-size);font-weight:550;line-height:1.4;margin:0 0 12px}.empty-state p{font-size:var(--ui-font-size);line-height:1.6;max-width:540px;margin:0;color:var(--muted)}.is-empty .transcript{opacity:0}
/* One persistent, centered recording action. */
.recording-dock{flex-shrink:0;border-top:1px solid var(--border);padding:16px 24px max(16px,env(safe-area-inset-bottom));background:var(--bg)}.capture-controls{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:24px;width:100%}
.recording-info{grid-column:1;display:flex;justify-content:flex-end;align-items:center;flex-wrap:wrap;gap:8px;row-gap:4px;font-size:var(--ui-font-size);color:var(--muted);min-width:0}.record-dot{width:8px;height:8px;border-radius:50%;background:var(--danger)}#timer{font-size:var(--ui-font-size);font-variant-numeric:tabular-nums;color:var(--text);white-space:nowrap}
.record-button,.primary-button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:10px 20px;background:var(--primary);color:var(--on-primary);font-weight:600;border-radius:var(--radius);white-space:nowrap}.record-button{grid-column:2;min-width:200px;min-height:60px;padding:14px 32px}.record-symbol{width:12px;height:12px;border-radius:50%;background:currentColor}.record-button:hover,.primary-button:hover{filter:brightness(.94)}.record-button.is-recording{background:var(--danger-bg);color:var(--danger);box-shadow:inset 0 0 0 1px var(--danger)}.record-button.is-recording .record-symbol{border-radius:2px}
/* Feedback and dialogs */
.toast{position:fixed;bottom:112px;left:calc(50% + var(--sidebar-width)/2);transform:translateX(-50%);width:max-content;max-width:min(720px,90vw);overflow-wrap:anywhere;padding:12px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--text);color:var(--bg);z-index:100}.toast.error{background:var(--surface);color:var(--danger);border-color:var(--danger)}
 dialog{width:min(480px,calc(100vw - 32px));padding:24px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}dialog::backdrop{background:var(--scrim)}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.dialog-top h2{font-size:var(--reading-font-size);font-weight:550;margin:0}dialog p,dialog label{color:var(--muted)}dialog label{display:block;margin-bottom:8px}dialog input{width:100%;min-height:48px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text)}.dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.secondary-button{min-height:48px;padding:10px 16px;border:1px solid var(--border);border-radius:var(--radius);background:transparent}.primary-button.danger{background:var(--danger);color:var(--bg)}
.auth-screen{min-height:100dvh;padding:32px 24px;display:grid;align-content:center;justify-items:center}.auth-content{width:100%;max-width:420px}.auth-content .brand{margin:0 0 48px}.auth-content h1{font-size:var(--reading-font-size);line-height:1.35;font-weight:550;margin:0 0 12px}.auth-content p{color:var(--muted);margin:0 0 28px}.google-login{display:flex;align-items:center;justify-content:center;gap:12px;padding:12px 20px;width:100%;min-height:52px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);font-weight:500}.google-login:hover{background:var(--hover);border-color:var(--accent)}#authMessage{margin-top:16px;font-size:var(--ui-font-size)}
.sidebar-backdrop{position:fixed;inset:0;z-index:19;background:var(--scrim)}body.sidebar-open{overflow:hidden}
/* Tablet and mobile retain readable text and direct actions. */
@media(max-width:1100px){.workspace-header{gap:16px}.header-tools{gap:8px}.heading{gap:8px}}
@media(max-width:800px){
 .sidebar{width:min(var(--sidebar-width),86vw);transform:translateX(-100%)}.sidebar-open .sidebar{transform:translateX(0)}.main{margin-left:0}.mobile-menu{display:grid;margin-left:-8px}
 .workspace-header{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;padding:12px 16px 16px;min-height:0}.heading{gap:8px;width:100%}.heading h1{flex:1}.header-tools{justify-content:flex-end;width:100%;gap:10px}.copy-button,.translate-button{min-height:48px;padding:8px 14px}.copy-button{width:132px;flex-basis:132px;padding-inline:12px;gap:8px}.translation-controls{min-width:0}.translation-status{max-width:220px}.actions-menu{left:auto;right:0}
 .reading-pane{padding:20px 16px 12px}.empty-state{top:48px}.empty-state p{max-width:100%}.paragraph-translation{padding-left:12px}
 .recording-dock{padding:12px 16px max(12px,env(safe-area-inset-bottom))}.capture-controls{grid-template-columns:minmax(0,1fr) auto;gap:12px}.recording-info{justify-content:flex-start;max-width:100%}.record-button{grid-column:2;min-width:180px;min-height:58px;padding:12px 24px}.toast{left:50%;bottom:104px}
}
@media(max-width:359px){.capture-controls{grid-template-columns:1fr}.recording-info,.record-button{grid-column:1;justify-self:center}.recording-info{justify-content:center}.record-button{min-width:200px}.toast{bottom:144px}}
@media(prefers-reduced-motion:no-preference){
 html,body,.sidebar,.workspace-header,.recording-dock,dialog,.actions-menu{transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease}
 button,.session-item{transition:background-color 140ms ease,color 140ms ease,border-color 140ms ease}
 .record-button{transition:background-color 140ms ease,color 140ms ease,transform 140ms ease}
 .record-button:active:not(:disabled){transform:translateY(1px)}.sidebar{transition:transform 180ms ease,background-color 180ms ease}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* The signed-in identity is an account control, with details on demand. */
.account-area{position:relative;margin-top:4px}
.account-toggle{display:flex;align-items:center;gap:12px;width:100%;min-height:60px;padding:10px 12px;text-align:left;border:1px solid transparent;border-radius:var(--radius);background:transparent}
.account-toggle:hover,.account-toggle[aria-expanded=true]{background:var(--hover);border-color:var(--border)}
.account-avatar{display:grid;place-items:center;width:36px;height:36px;flex-shrink:0;background:var(--selected);color:var(--accent);border:1px solid var(--border);border-radius:50%;font-weight:600}
.account-toggle .account-name{flex:1;min-width:0;padding:0;color:var(--text);font-weight:500}
.account-chevron{width:18px;height:18px;color:var(--muted)}
.account-panel{position:absolute;bottom:calc(100% + 8px);left:0;right:0;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 6px 20px #00000014;z-index:35}
.account-email{margin:0;padding:8px 10px 12px;color:var(--muted);overflow-wrap:anywhere;border-bottom:1px solid var(--border)}
.account-panel .account-button{margin-top:4px;color:var(--text)}