:root{--bg:#0f172a;--bg-gradient:radial-gradient(circle at top right, #1e1b4b, #0f172a);--surface:#ffffff08;--surface-strong:#ffffff0d;--surface-input:#0003;--border:#ffffff1a;--border-strong:#ffffff29;--dropdown-bg:#1a2035;--dropdown-bg-hover:#252d44;--text:#f8fafc;--text-primary:#e2e8f0;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--text-faint:#7c8da5;--accent:#818cf8;--accent-strong:#6366f1;--accent-hover:#a5b4fc;--accent-dim:#818cf81a;--accent-border:#818cf84d;--accent-shadow:#6366f180;--gradient:linear-gradient(135deg, #0891b2, #6366f1);--gradient-track:linear-gradient(90deg, #6366f1, #8b5cf6);--danger:#ef4444;--danger-hover:#f87171;--danger-border:#ef44444d;--danger-bg:#ef44441a;--success:#10b981;--success-border:#10b98166;--success-bg:#10b9811f;--warning:#f59e0b;--info:#06b6d4;--warning-bg:#f59e0b26;--warning-border:#f59e0b66;--info-bg:#06b6d426;--info-border:#06b6d466;--slider-track:#334155;--slider-fill:#6366f1;--slider-thumb:#818cf8;--ring:#818cf833;--card-shadow:0 25px 50px -12px #00000080;--card-shadow-hover:0 35px 60px -15px #0009;--glass-bg:#0f172ae0;--glass-border:#ffffff1a;--searching:#0ea5e9;--searching-bg:#0ea5e926;--searching-border:#0ea5e959;--cloud:#3b82f6;--cloud-bg:#3b82f626;--cloud-border:#3b82f659;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-2xl:24px;--radius-pill:999px;--text-xs:.65rem;--text-sm:.75rem;--text-base:.85rem;--text-md:.9rem;--text-lg:1rem;--text-xl:1.1rem;--text-2xl:1.5rem;--text-3xl:2.2rem;--duration-fast:.15s;--duration-normal:.2s;--duration-slow:.3s;--ease-out:cubic-bezier(.16, 1, .3, 1);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#eef2f7;--bg-gradient:radial-gradient(circle at top right, #e0e7ff, #eef2f7);--surface:#ffffffb3;--surface-strong:#ffffffd9;--surface-input:#fffc;--border:#0f172a1a;--border-strong:#0f172a2e;--dropdown-bg:#fff;--dropdown-bg-hover:#f1f5f9;--text:#0f172a;--text-primary:#1e293b;--text-secondary:#2f3b50;--text-muted:#384356;--text-faint:#354050;--accent:#4338ca;--accent-strong:#312e81;--accent-hover:#3730a3;--accent-dim:#4338ca1a;--accent-border:#4338ca59;--accent-shadow:#312e8166;--gradient:linear-gradient(135deg, #1d4ed8, #4338ca);--gradient-track:linear-gradient(90deg, #4338ca, 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2);top:var(--space-8);flex-direction:column;flex-shrink:0;display:flex;position:sticky;overflow:hidden}.settings-tabs{gap:var(--space-1,.25rem);padding:var(--space-2) var(--space-2) var(--space-3,.75rem);flex-shrink:0;display:flex}.settings-tab{padding:var(--space-2,.5rem);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-muted);cursor:pointer;font-size:var(--text-base);justify-content:center;align-items:center;gap:var(--space-1,.25rem);transition:all var(--duration-fast);flex:1;font-weight:600;display:flex}.settings-tab:hover{color:var(--accent-hover);background:var(--surface-strong);border-color:var(--border-strong)}.settings-tab.active{color:var(--accent-hover);border-color:var(--accent-border);background:var(--accent-dim);box-shadow:inset 0 0 0 1px var(--accent-border)}.settings-body{padding:var(--space-4);padding-bottom:calc(var(--space-4) + 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var(--accent-shadow);filter:brightness(1.1);transform:translateY(-2px)}.btn-primary:active:not(:disabled){transform:translateY(1px)}.btn-primary:disabled{background:var(--surface-strong);color:var(--text-muted);cursor:not-allowed;box-shadow:none;transform:none}.status-bar{margin-top:var(--space-6);padding:var(--space-4);background:var(--surface-strong);border-radius:var(--radius-lg);font-size:var(--text-md);color:var(--text-secondary);justify-content:center;align-items:center;gap:var(--space-2);display:flex}.voice-inline-play{background:var(--success);border:1px solid var(--success);color:#fff;cursor:pointer;width:22px;height:22px;transition:all var(--duration-fast);margin-left:var(--space-1,.25rem);border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.voice-inline-play:hover{filter:brightness(1.15)}.voice-inline-change{background:var(--surface-strong);border:1px solid 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.file-tab-name{color:var(--accent-hover);font-weight:600}.file-tab-delete{color:var(--danger);cursor:pointer;margin-left:var(--space-1,.25rem);background:0 0;border:none;padding:0;line-height:1}.file-tab-edit{background:var(--surface-input);color:var(--text-primary);border:1px solid var(--accent);font-size:var(--text-base);border-radius:4px;outline:none;width:80px;padding:.1rem .3rem}.file-add-btn{padding:var(--space-1,.25rem) var(--space-2);border-radius:var(--radius-sm) var(--radius-sm) 0 0;cursor:pointer;background:var(--surface);border:1px solid var(--border);color:var(--text-faint);flex-shrink:0;justify-content:center;align-items:center;display:flex}.text-collapsed-bar{align-items:center;gap:var(--space-3,.75rem);padding:var(--space-3,.75rem) var(--space-3,.75rem);margin-bottom:var(--space-3);background:linear-gradient(135deg, var(--success-bg) 0%, #0596690d 100%);border:1px solid var(--success-border);border-radius:var(--radius-lg);font-size:var(--text-base);color:var(--text);transition:all var(--duration-normal) ease;display:flex;box-shadow:0 2px 12px #10b98114}.text-collapsed-bar:hover{border-color:#10b98199;box-shadow:0 4px 16px #10b98126}.text-collapsed-preview{text-overflow:ellipsis;white-space:nowrap;color:var(--text-primary);letter-spacing:-.01em;flex:1;font-weight:500;overflow:hidden}.text-collapsed-btn{background:linear-gradient(135deg, var(--success) 0%, #059669 100%);border-radius:var(--radius-sm);padding:var(--space-1,.25rem) var(--space-3,.75rem);cursor:pointer;font-size:var(--text-base);color:#fff;justify-content:center;align-items:center;gap:var(--space-1,.25rem);box-shadow:0 2px 8px var(--success-border);transition:all var(--duration-fast) ease;border:none;flex-shrink:0;font-weight:700;display:inline-flex}.text-collapsed-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px 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