:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;line-height:1.45;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--bg-page: var(--bg-primary, #f5f7fa);--bg-surface: var(--bg-secondary, #ffffff);--bg-surface-muted: var(--bg-tertiary, #fafbfc);--color-text: var(--text-primary, #1a202c);--color-muted: var(--text-secondary, #4a5568);--color-faint: var(--text-muted, #718096);--color-stroke: var(--border-color, #e2e8f0);--color-accent: var(--accent-color, #0d9488);--color-accent-strong: var(--accent-hover, #0f766e);--color-accent-light: var(--accent-light, #e6fffa);--color-accent-border: var(--accent-border, #5eead4);--color-focus-ring: var(--accent-focus-ring, rgba(13, 148, 136, .15));--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--shadow: 0 10px 25px rgba(0, 0, 0, .05);--radius: 10px}body.theme-dark{color-scheme:dark;--bg-page: #1a1b1e;--bg-surface: #25262b;--bg-surface-muted: #2c2e33;--color-text: #e5e7eb;--color-muted: #a0aec0;--color-faint: #6b7280;--color-stroke: #3f4147;--color-accent: #14b8a6;--color-accent-strong: #0d9488;--color-accent-light: #134e4a;--color-accent-border: #2dd4bf;--color-focus-ring: rgba(20, 184, 166, .2);--shadow: 0 10px 25px rgba(0, 0, 0, .3)}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;padding:0;overflow-x:hidden;background:var(--bg-page);color:var(--color-text);min-height:100vh;transition:background-color .2s,color .2s}#app{display:flex;flex-direction:column;width:100%;height:100vh;overflow:hidden}.downloader-shell{flex:1;overflow-y:auto;padding:24px;display:flex;justify-content:center;align-items:flex-start}.download-surface{width:100%;max-width:800px;background:var(--bg-surface);border:1px solid var(--color-stroke);border-radius:16px;box-shadow:var(--shadow);padding:32px;display:grid;gap:24px}.surface-header{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--color-stroke);padding-bottom:16px}.surface-header h2{font-size:20px;font-weight:700;margin:0;color:var(--color-text)}.sp-back-bar{display:flex;align-items:center;padding:12px 24px;gap:16px;border-bottom:1px solid var(--color-stroke);background:var(--bg-surface);flex-shrink:0}.sp-back-bar__title{margin:0;font-size:16px;font-weight:700;flex:1;color:var(--color-text)}.sp-back-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--color-stroke);background:var(--bg-surface-muted);cursor:pointer;border-radius:8px;color:var(--color-muted);transition:all .2s}.sp-back-btn:hover{background:var(--bg-hover, rgba(0, 0, 0, .04));color:var(--color-accent);border-color:var(--color-accent-border)}.top-actions{display:flex;align-items:center;gap:10px}.language-toggle{display:inline-flex;padding:3px;border:1px solid var(--color-stroke);border-radius:8px;background:var(--bg-surface-muted)}.segment{border:0;border-radius:6px;background:transparent;color:var(--color-muted);font-size:12px;font-weight:600;padding:6px 12px;cursor:pointer;transition:all .15s}.segment.is-active{background:var(--color-text);color:var(--bg-surface)}.sp-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;color:var(--color-faint)}.sp-loading .spinner{width:36px;height:36px;border:3px solid var(--color-stroke);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-stroke);border-radius:8px;background:var(--bg-surface);color:var(--color-text);font-size:13px;font-weight:600;padding:10px 16px;cursor:pointer;transition:all .2s;white-space:nowrap}.button:hover:not(:disabled){border-color:var(--color-accent-border);background:var(--color-accent-light);color:var(--color-accent-strong)}.button:disabled{opacity:.5;cursor:not-allowed}.button.primary{background:var(--color-accent);border-color:var(--color-accent);color:#fff}.button.primary:hover:not(:disabled){background:var(--color-accent-strong);border-color:var(--color-accent-strong);color:#fff;box-shadow:0 4px 12px var(--color-focus-ring)}.button.danger{color:var(--color-danger);border-color:var(--color-stroke)}.button.danger:hover:not(:disabled){background:#fef2f2;border-color:#fca5a5;color:#b91c1c}body.theme-dark .button.danger:hover:not(:disabled){background:#ef444426;border-color:#ef44444d;color:#f87171}.button.compact{padding:6px 12px;font-size:12px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--color-stroke);border-radius:8px;background:var(--bg-surface-muted);color:var(--color-muted);font-size:18px;cursor:pointer;transition:all .2s}.icon-button:hover{background:var(--bg-hover, rgba(0,0,0,.04));color:var(--color-accent)}input[type=text],input[type=url],select{width:100%;border:1px solid var(--color-stroke);border-radius:8px;outline:none;background:var(--bg-surface-muted);color:var(--color-text);padding:10px 14px;font-size:13px;transition:all .2s}input[type=text]:focus,input[type=url]:focus,select:focus{border-color:var(--color-accent);background:var(--bg-surface);box-shadow:0 0 0 3px var(--color-focus-ring)}label{display:block;color:var(--color-muted);font-size:12px;font-weight:700;margin-bottom:6px}.notice{padding:8px 16px;border:1px solid var(--color-stroke);border-radius:8px;background:var(--bg-surface-muted);color:var(--color-muted);font-size:12px;font-weight:500}.notice.is-success{background:#10b9811a;border-color:#10b98140;color:#059669}.notice.is-warning{background:#f59e0b1a;border-color:#f59e0b40;color:#d97706}.notice.is-error{background:#ef44441a;border-color:#ef444440;color:#dc2626}body.theme-dark .notice.is-success{color:#34d399}body.theme-dark .notice.is-warning{color:#fbbf24}body.theme-dark .notice.is-error{color:#f87171}.url-panel{display:grid;gap:12px}.url-row{display:flex;gap:12px}.url-row input{flex:1}.cookie-row{display:flex;justify-content:space-between;align-items:center;background:var(--bg-surface-muted);border:1px dashed var(--color-stroke);border-radius:8px;padding:10px 16px;gap:16px}.cookie-status{display:flex;align-items:center;gap:8px;min-width:0}.cookie-label{font-size:12px;color:var(--color-muted);font-weight:700;white-space:nowrap}.cookie-file{font-size:12px;color:var(--color-text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cookie-actions{display:flex;gap:8px}.preview-panel{display:grid;grid-template-columns:280px 1fr;gap:24px;border-top:1px solid var(--color-stroke);border-bottom:1px solid var(--color-stroke);padding:24px 0}.media-frame{position:relative;aspect-ratio:16 / 9;overflow:hidden;border:1px solid var(--color-stroke);border-radius:10px;background:var(--bg-surface-muted)}#thumbnail{width:100%;height:100%;object-fit:cover}.empty-thumbnail{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;color:var(--color-faint);font-size:13px;font-weight:500}.empty-mark{width:32px;height:32px;border:2px dashed var(--color-stroke);border-radius:50%;display:flex;align-items:center;justify-content:center}.empty-mark:before{content:"▶";font-size:10px;color:var(--color-faint);margin-left:2px}.preview-copy{display:flex;flex-direction:column;justify-content:flex-start;min-width:0}.section-kicker{font-size:11px;font-weight:700;text-transform:uppercase;color:var(--color-accent);letter-spacing:.5px;margin-bottom:6px}#video-title{font-size:16px;font-weight:700;margin:0 0 8px;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}#video-details{font-size:12px;color:var(--color-muted);line-height:1.5;margin-bottom:8px}#video-description{font-size:12px;color:var(--color-faint);line-height:1.6;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}.download-panel{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:flex-end}.quality-field{min-width:0}.download-actions{display:flex;gap:10px}progress{grid-column:1 / -1;width:100%;height:8px;border:none;background:var(--bg-surface-muted);border-radius:999px;overflow:hidden}progress::-webkit-progress-bar{background:var(--bg-surface-muted)}progress::-webkit-progress-value{background:linear-gradient(90deg,var(--color-accent-border),var(--color-accent))}.progress-text{grid-column:1 / -1;margin:0;font-size:12px;color:var(--color-muted);min-height:18px}.settings-backdrop{position:fixed;inset:0;z-index:9999;background:#0f172a4d;backdrop-filter:blur(4px);animation:fadeIn .2s ease-out}.settings-drawer{position:fixed;top:0;right:0;bottom:0;z-index:10000;width:420px;max-width:100%;background:var(--bg-surface);border-left:1px solid var(--color-stroke);box-shadow:-8px 0 32px #0f172a26;display:flex;flex-direction:column;animation:slideIn .25s cubic-bezier(.16,1,.3,1)}.drawer-header{padding:24px;border-bottom:1px solid var(--color-stroke);display:flex;justify-content:space-between;align-items:center;background:var(--bg-surface)}.drawer-header h2{font-size:18px;font-weight:700;margin:4px 0 0}.drawer-header .eyebrow{margin:0;font-size:10px}.settings-section{padding:24px;border-bottom:1px solid var(--color-stroke);display:grid;gap:16px}.settings-section-header h3{font-size:14px;font-weight:700;margin:0 0 4px}.settings-section-header p{font-size:12px;color:var(--color-faint);margin:0}.path-text{font-size:11px;color:var(--color-faint);background:var(--bg-surface-muted);border:1px solid var(--color-stroke);border-radius:6px;padding:8px 12px;word-break:break-all;margin:0}.split-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.tool-actions{display:grid;grid-template-columns:1fr 1.5fr;gap:8px}.tool-list{display:grid;gap:8px;padding:0;margin:0;list-style:none}.tool-row{display:flex;align-items:center;padding:8px 12px;border:1px solid var(--color-stroke);border-radius:8px;background:var(--bg-surface-muted);font-size:12px;gap:10px}.tool-dot{width:8px;height:8px;border-radius:50%;background:var(--color-danger);flex-shrink:0}.tool-row.is-available .tool-dot{background:var(--color-success)}.tool-row.is-cannot_execute .tool-dot{background:var(--color-warning)}.tool-name{font-weight:700;color:var(--color-text);flex:0 0 70px}.tool-version{color:var(--color-faint);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.tool-install-status{font-size:12px;color:var(--color-muted);margin:0}.events{max-height:150px;overflow-y:auto;padding:8px;background:var(--bg-surface-muted);border:1px solid var(--color-stroke);border-radius:8px;list-style:none;display:grid;gap:6px}.events li{font-size:11px;color:var(--color-muted);border-bottom:1px solid var(--color-stroke);padding-bottom:4px}.events li:last-child{border:none;padding:0}.settings-footer{margin-top:auto;padding:24px;background:var(--bg-surface-muted);border-top:1px solid var(--color-stroke)}.settings-footer-main{display:flex;justify-content:space-between;align-items:center}.settings-version-line{font-size:12px;color:var(--color-faint)}#app-version{font-weight:700;color:var(--color-text);margin-left:4px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}@media (max-width: 800px){.downloader-shell{padding:16px}.download-surface{padding:20px;gap:16px}.preview-panel{grid-template-columns:1fr;gap:16px}.download-panel{grid-template-columns:1fr;gap:12px}.download-actions{width:100%;justify-content:space-between}.download-actions button{flex:1}}.preview-panel.is-clickable{cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);position:relative;border-radius:12px;padding:16px;margin:8px -16px;border:1px solid transparent}.preview-panel.is-clickable:hover{background-color:var(--bg-surface-muted);border-color:var(--color-stroke);box-shadow:0 10px 30px #0000000d;transform:translateY(-2px)}body.theme-dark .preview-panel.is-clickable:hover{background-color:#ffffff05;box-shadow:0 10px 30px #0003}.play-overlay{position:absolute;inset:0;background:#0f172a99;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;opacity:0;transition:opacity .25s ease;z-index:10}.preview-panel.is-clickable:hover .play-overlay{opacity:1}.play-icon{width:44px;height:44px;background:var(--color-accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;padding-left:3px;box-shadow:0 4px 14px #0d948866;transform:scale(.9);transition:transform .25s cubic-bezier(.34,1.56,.64,1)}.preview-panel.is-clickable:hover .play-icon{transform:scale(1)}.play-overlay span:not(.play-icon){font-size:13px;font-weight:700;letter-spacing:.5px}.downloader-player-container{position:fixed;inset:0;background:#0f172ae0;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;animation:tv-dialog-in .35s cubic-bezier(.16,1,.3,1) forwards}.downloader-player-container[hidden]{display:none!important}.downloader-player-header{width:100%;max-width:960px;display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;color:#f8fafc}.downloader-player-title{font-size:18px;font-weight:600;letter-spacing:.5px;text-overflow:ellipsis;overflow:hidden;white-space:nowrap;max-width:80%}.downloader-player-close{background:#ffffff14;border:1px solid rgba(255,255,255,.1);color:#94a3b8;font-size:24px;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);line-height:1}.downloader-player-close:hover{background:#ef444433;border-color:#ef444466;color:#f87171;transform:scale(1.08)}.downloader-player-host{width:100%;max-width:960px;aspect-ratio:16 / 9;max-height:calc(100vh - 160px);background:#020617;border-radius:12px;border:1px solid rgba(255,255,255,.08);overflow:hidden;box-shadow:0 25px 50px -12px #000000bf;position:relative}.downloader-player-host .video-player{width:100%;height:100%;border-radius:0!important;border:none!important}@keyframes tv-dialog-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}