:root{--action-bg:#10263b;--action-fg:#fffdf7;--action-hover:#29465d;--control-bg:#fffdf7;--control-fg:#10263b;--control-hover:#f0ece2;--selected-bg:#10263b;--selected-fg:#fffdf7;--media-bg:#10263b;--danger-fg:#fffdf7;--floating-bg:#10263b;--floating-fg:#fffdf7}
:root[data-theme="dark"]{color-scheme:dark;--ink:#edf3f5;--blueprint:#d7e3e8;--secondary:#aabac3;--tertiary:#91a4af;--paper:#09141d;--surface:#101f2a;--soft:#172a36;--line:rgba(225,238,244,.12);--line-strong:rgba(225,238,244,.24);--copper:#e2744b;--copper-dark:#f08a63;--copper-soft:rgba(226,116,75,.16);--teal:#67b8b6;--teal-soft:rgba(88,170,169,.15);--blue:#70a8c9;--gold:#d6a65d;--danger:#e3847d;--danger-soft:rgba(220,119,112,.14);--shadow:0 24px 70px rgba(0,0,0,.36);--action-bg:#e2744b;--action-fg:#09141d;--action-hover:#f08a63;--control-bg:#132632;--control-fg:#edf3f5;--control-hover:#1b3442;--selected-bg:#edf3f5;--selected-fg:#09141d;--media-bg:#07141e;--danger-fg:#09141d;--floating-bg:#edf3f5;--floating-fg:#09141d}
:root .button.primary{background:var(--action-bg);border-color:var(--action-bg);color:var(--action-fg)}:root .button.primary:hover{background:var(--action-hover);border-color:var(--action-hover);color:var(--action-fg)}:root .button.secondary{background:var(--control-bg);color:var(--control-fg);border-color:var(--line-strong)}:root .toast{background:var(--floating-bg);color:var(--floating-fg)}
:root[data-theme="dark"] .topbar{background:rgba(9,20,29,.86)}:root[data-theme="dark"] .command-hint,:root[data-theme="dark"] .command-bar,:root[data-theme="dark"] .auth-card{background:rgba(16,31,42,.92)}:root[data-theme="dark"] .field input,:root[data-theme="dark"] .url-field input,:root[data-theme="dark"] .choice,:root[data-theme="dark"] .preset{background:#132632;color:var(--ink)}:root[data-theme="dark"] .icon-button:hover,:root[data-theme="dark"] .tool-rail>button:hover{background:#172d3a}:root[data-theme="dark"] .file-drop{background:rgba(23,42,54,.55)}:root[data-theme="dark"] .viewer-shell,:root[data-theme="dark"] .modal-card,:root[data-theme="dark"] .mask-shell{border-color:var(--line)}:root[data-theme="dark"] .viewer-body{background:#071018}:root[data-theme="dark"] .transcript-view{background:var(--paper)}:root[data-theme="dark"] .mask-controls{background:var(--surface)}:root[data-theme="dark"] .mask-mode button.active{background:#203542}:root[data-theme="dark"] .asset-card,:root[data-theme="dark"] .selected-file{background:var(--surface)}
:root[data-theme="dark"] .choice.active{background:var(--action-bg);border-color:var(--action-bg);color:var(--action-fg)}:root[data-theme="dark"] .download-link,:root[data-theme="dark"] .file-action,:root[data-theme="dark"] .asset-actions button,:root[data-theme="dark"] .asset-actions a{color:var(--ink)}:root[data-theme="dark"] .progress-track{background:rgba(255,255,255,.1)}
.converter-row-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.8fr);gap:20px;padding:0 16px 9px;color:var(--tertiary);font:600 9px 'IBM Plex Mono',monospace;letter-spacing:.12em}.converter-format-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.8fr);gap:20px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:15px 16px;background:var(--soft)}.converter-file-summary{display:flex;align-items:center;gap:12px;min-width:0}.converter-file-summary>span:last-child{display:grid;gap:3px;min-width:0}.converter-file-summary b{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.converter-file-summary small,.format-family{font-size:10px;color:var(--tertiary)}.converter-type{width:42px;height:42px;border-radius:10px;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;color:var(--copper);font:600 9px 'IBM Plex Mono',monospace;text-transform:uppercase}.format-picker{display:grid;gap:8px}.format-picker .choice-grid{max-height:none;overflow:visible;display:flex;flex-wrap:wrap}.viewer-details{position:absolute;z-index:4;right:16px;top:82px;width:min(420px,calc(100% - 32px));padding:18px;background:var(--surface);border:1px solid var(--line-strong);border-radius:14px;box-shadow:var(--shadow);display:grid;gap:13px}.viewer-details-row{display:grid;gap:4px}.viewer-details-row span{font:600 9px 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--tertiary)}.viewer-details-row b,.viewer-details-row a{color:var(--ink);font-size:11px;line-height:1.45;overflow-wrap:anywhere}.viewer-details-row a{color:var(--copper)}
@media(max-width:700px){.converter-row-head{display:none}.converter-format-row{grid-template-columns:1fr;padding:13px}.viewer-actions #viewerDetailsToggle{display:none}.viewer-details{top:70px}.converter-card .selected-file{grid-template-columns:52px minmax(0,1fr) auto}.converter-card .change-file{display:none}}
.pdf-operations{display:flex;gap:5px;padding:4px;margin-bottom:22px;background:var(--soft);border-radius:12px}.pdf-operations button{flex:1;min-height:42px;border:0;border-radius:9px;background:transparent;color:var(--secondary);font-size:12px;font-weight:600}.pdf-operations button.active{background:var(--surface);color:var(--ink);box-shadow:0 3px 14px rgba(16,38,59,.08)}.pdf-options:not(:empty){margin-top:20px}.pdf-split-options,.pdf-compress-options{padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}.pdf-card .field input{background:var(--surface)}
.compression-levels{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.settings-modal .modal-card{width:min(760px,100%);max-height:min(850px,calc(100vh - 32px));overflow:auto}.settings-section{display:grid;gap:14px;padding:20px 0;border-top:1px solid var(--line)}.settings-section>div:first-child,.settings-section>span{display:grid;gap:4px}.settings-section b{font-size:12px}.settings-section small{font-size:10px;color:var(--tertiary)}.ai-provider-list{display:grid;gap:8px}.ai-provider{display:grid;grid-template-columns:150px 1fr;align-items:center;gap:14px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}.ai-provider>div{display:grid;gap:3px}.ai-provider form{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:7px}.ai-provider input,.settings-section select{min-width:0;height:42px;border:1px solid var(--line-strong);border-radius:9px;background:var(--surface);color:var(--ink);padding:0 11px}.settings-model-row{display:grid!important;grid-template-columns:1fr 2fr;gap:10px}.settings-switch{display:flex;align-items:center;justify-content:space-between;gap:18px}.settings-switch>span{display:grid;gap:4px}.settings-switch input{width:18px;height:18px;accent-color:var(--copper)}.transcript-ai-layout{width:100%;height:100%;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);background:var(--surface)}.transcript-ai-layout .transcript-plain{width:100%;height:100%;border-right:1px solid var(--line)}.transcript-ai-summary{overflow:auto;padding:24px;background:var(--soft)}.transcript-ai-summary header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}.transcript-ai-summary header span{display:grid;gap:3px}.transcript-ai-summary article{font-size:12px;line-height:1.65;color:var(--secondary)}.transcript-ai-summary article h1,.transcript-ai-summary article h2,.transcript-ai-summary article h3{font-family:inherit;color:var(--ink);letter-spacing:-.01em;margin:22px 0 8px}.transcript-ai-summary article h1{font-size:17px}.transcript-ai-summary article h2{font-size:14px}.transcript-ai-summary article h3{font-size:12px}.transcript-ai-summary article p{margin:8px 0}.transcript-ai-summary article li{margin:6px 0}.transcript-plain{margin:0!important;align-self:stretch!important;justify-self:stretch!important}.viewer-export{min-width:48px;padding-inline:10px}
@media(max-width:760px){.compression-levels{grid-template-columns:1fr}.ai-provider{grid-template-columns:1fr}.ai-provider form{grid-template-columns:1fr 1fr}.ai-provider input{grid-column:1/-1}.settings-model-row{grid-template-columns:1fr!important}.transcript-ai-layout{grid-template-columns:1fr;overflow:auto}.transcript-ai-layout .transcript-plain{height:auto;min-height:50vh;border-right:0;border-bottom:1px solid var(--line)}}
.ai-prompt-form{display:grid;gap:9px;padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}.ai-prompt-form>div{display:grid;gap:3px}.ai-prompt-form textarea{width:100%;resize:vertical;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink);padding:12px;font:400 12px/1.55 'IBM Plex Mono',monospace}.ai-prompt-form .button{justify-self:end}
.theme-toggle{flex:0 0 auto}.theme-toggle svg{width:18px;height:18px}.tool-palette{position:fixed;inset:0;z-index:160;display:grid;place-items:start center;padding-top:min(18vh,160px);background:rgba(5,14,21,.55);backdrop-filter:blur(8px)}.tool-palette-card{width:min(620px,calc(100% - 24px));background:var(--surface);border:1px solid var(--line-strong);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}.tool-palette-input{width:100%;height:62px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--ink);padding:0 20px;font-size:15px;outline:0}.tool-palette-results{padding:8px;display:grid;gap:3px}.tool-palette-results button{border:0;background:transparent;color:var(--ink);min-height:58px;border-radius:10px;padding:8px 12px;text-align:left;display:grid;grid-template-columns:38px 1fr;align-items:center;gap:10px}.tool-palette-results button:hover,.tool-palette-results button.active{background:var(--soft)}.tool-palette-results b{font-size:12px}.tool-palette-results small{display:block;color:var(--tertiary);font-size:10px;margin-top:3px}.transcribe-mode{display:flex;gap:5px;padding:4px;background:var(--soft);border-radius:12px;margin-bottom:18px}.transcribe-mode button{flex:1;min-height:40px;border:0;border-radius:9px;background:transparent;color:var(--secondary);font-weight:600}.transcribe-mode button.active{background:var(--surface);color:var(--ink);box-shadow:0 2px 10px rgba(0,0,0,.08)}.transcribe-url-panel{display:grid;gap:12px}.transcribe-url-panel .url-field input{padding-left:16px}

/* Theme-safe control contract. Keep every interactive surface readable in both themes. */
:root .button,:root .icon-button,:root .audio-control,:root .file-action,:root .asset-actions button,:root .asset-actions a,:root .library-view-toggle button,:root .filter-chips button,:root .choice,:root .preset,:root .source-shortcuts button,:root .pdf-operations button,:root .transcribe-mode button,:root .mask-mode button{transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}
:root .icon-button,:root .audio-control,:root .file-action,:root .library-view-toggle button{background:var(--control-bg);color:var(--control-fg);border-color:var(--line)}
:root .icon-button:hover,:root .audio-control:hover,:root .file-action:hover,:root .library-view-toggle button:hover{background:var(--control-hover);color:var(--ink);border-color:var(--line-strong)}
:root .choice,:root .preset,:root .selected-file{background:var(--control-bg);color:var(--control-fg)}
:root .choice.active,:root .preset.active,:root .filter-chips button.active,:root .library-view-toggle button.active{background:var(--selected-bg);border-color:var(--selected-bg);color:var(--selected-fg)}
:root .choice.active *,:root .preset.active *,:root .filter-chips button.active *,:root .library-view-toggle button.active *{color:inherit}
:root .audio-wave{background:var(--media-bg)}
:root .audio-play{background:var(--action-bg);color:var(--action-fg);border-color:var(--action-bg)}
:root .audio-play:hover{background:var(--action-hover);color:var(--action-fg);border-color:var(--action-hover)}
:root .audio-control svg,:root .audio-play svg,:root .icon-button svg,:root button svg{stroke:currentColor}
:root .audio-play svg path:first-child{fill:currentColor}
:root .danger-button{background:var(--danger)!important;border-color:var(--danger)!important;color:var(--danger-fg)!important}
:root .danger-button svg{stroke:currentColor}
:root button:focus-visible,:root a.button:focus-visible,:root .asset-actions a:focus-visible{outline:0;box-shadow:0 0 0 3px var(--copper-soft);border-color:var(--copper)}
:root button:disabled,:root .button:disabled{opacity:.48;cursor:not-allowed;filter:saturate(.65);box-shadow:none!important}
:root[data-theme="dark"] .download-link,:root[data-theme="dark"] .result-actions .button,:root[data-theme="dark"] .viewer-actions .button{color:var(--control-fg)}
:root[data-theme="dark"] .result-actions .button.primary,:root[data-theme="dark"] .viewer-actions .button.primary{color:var(--action-fg)}
.job-open{min-height:34px;padding:0 10px;border:1px solid var(--line);border-radius:9px;background:var(--control-bg);color:var(--control-fg);font-size:10px;font-weight:600}.job-open:hover{border-color:var(--line-strong);background:var(--control-hover)}
.compression-estimate{display:grid;grid-template-columns:1fr auto 1fr auto;align-items:center;gap:14px;margin:18px 0;padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.compression-estimate span{display:grid;gap:4px}.compression-estimate small,.compression-result small{color:var(--tertiary);font:600 9px 'IBM Plex Mono',monospace;letter-spacing:.08em}.compression-estimate b{font-size:16px}.compression-estimate>i{display:grid;color:var(--tertiary)}.compression-estimate>strong,.compression-result>strong{padding:7px 9px;border-radius:9px;background:var(--teal-soft);color:var(--teal);font-size:12px}.compression-estimate p{grid-column:1/-1;margin:0;padding-top:10px;border-top:1px solid var(--line);font-size:10px;line-height:1.5}.compression-result{display:grid;grid-template-columns:1fr 1fr auto;align-items:center;gap:12px;margin:16px 0;padding:14px;border:1px solid var(--line);border-radius:13px;background:var(--soft)}.compression-result span{display:grid;gap:3px}.compression-result b{font-size:13px}.compression-result>small{grid-column:1/-1}
@media(max-width:700px){.job-open{min-height:38px}.compression-estimate{grid-template-columns:1fr auto 1fr}.compression-estimate>strong{grid-column:1/-1;justify-self:start}.compression-result{grid-template-columns:1fr 1fr}.compression-result>strong{grid-column:1/-1;justify-self:start}.viewer-actions #viewerOpenTool{font-size:0;width:42px;padding:0}.viewer-actions #viewerOpenTool svg{width:17px}}
.viewer-head{display:grid!important;grid-template-columns:minmax(180px,1fr) minmax(0,auto);height:auto;min-height:76px}.viewer-actions{min-width:0;max-width:min(72vw,760px);display:flex;justify-content:flex-end;flex-wrap:wrap;gap:7px}.viewer-actions .button,.viewer-actions .icon-button{flex:0 0 auto;white-space:nowrap}.viewer-actions .viewer-close{margin-left:2px}.viewer-actions .viewer-export{min-width:44px}
@media(max-width:760px){.viewer-head{grid-template-columns:minmax(0,1fr) auto;padding:10px 10px 8px!important;gap:8px}.viewer-head>div:first-child{padding-right:4px}.viewer-head h2{max-width:none!important}.viewer-actions{grid-column:1/-1;max-width:100%;width:100%;justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding:2px 1px 3px;scrollbar-width:none;overscroll-behavior-x:contain}.viewer-actions::-webkit-scrollbar{display:none}.viewer-actions .button,.viewer-actions .icon-button{min-height:40px}.viewer-actions .viewer-close{position:absolute;right:10px;top:10px}.viewer-head>div:first-child{padding-right:48px}.viewer-actions #viewerDetailsToggle{display:inline-flex}.viewer-actions #viewerOpenTool{font-size:0;width:42px;padding:0}.viewer-actions #viewerOpenTool svg{width:17px}}
.pdf-studio{position:fixed;inset:0;z-index:220;background:var(--paper);display:grid;grid-template-rows:64px minmax(0,1fr)}.pdf-studio>header{display:flex;align-items:center;gap:10px;padding:9px 14px 9px 20px;border-bottom:1px solid var(--line);background:var(--surface)}.pdf-studio>header>div{min-width:0;display:grid;gap:3px;flex:1}.pdf-studio>header b{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pdf-studio-status{color:var(--teal);font-size:10px}.pdf-studio-status.error{color:var(--danger)}.pdf-studio iframe{width:100%;height:100%;border:0;background:var(--surface)}
@media(max-width:700px){.pdf-studio{grid-template-rows:auto minmax(0,1fr)}.pdf-studio>header{min-height:60px;padding:8px 10px}.pdf-studio-status,.pdf-studio-external{display:none}.pdf-studio>header .kicker{display:none}.pdf-studio>header b{max-width:55vw}}