.navbar{position:sticky;top:0;z-index:50;background:var(--navbar-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--navbar-border);padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between}.navbar-brand{font-size:14px;font-weight:var(--font-medium);color:var(--text);text-decoration:none}.navbar-brand:hover{opacity:.7}.navbar-link{font-size:13px;font-weight:var(--font-normal);color:var(--text-secondary);text-decoration:none;transition:color var(--transition-normal)}.navbar-link:hover{color:var(--text)}.navbar-right{display:flex;align-items:center;gap:8px}.theme-toggle{width:34px;height:34px;border-radius:50%;border:1px solid var(--badge-border);background:var(--card-bg);color:var(--text-secondary);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-normal);flex-shrink:0;line-height:1}.theme-toggle:hover{background:var(--overlay-hover);color:var(--text);border-color:var(--border-hover);transform:rotate(15deg)}@media (max-width: 640px){.navbar{padding:0 16px;height:48px}.navbar-brand{font-size:13px}.navbar-link{font-size:12px}.theme-toggle{width:30px;height:30px;font-size:14px}}.input-card{padding:20px 28px 24px;max-width:896px;margin:0 auto}.input-tabs{display:flex;gap:0;margin-bottom:16px;border-bottom:1px solid var(--navbar-border);padding-bottom:0}.input-tab{padding:8px 20px;font-size:13px;font-weight:var(--font-normal);color:var(--text-tertiary);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all var(--transition-normal);-webkit-user-select:none;user-select:none}.input-tab:hover{color:var(--text-secondary)}.input-tab.active{color:var(--text);font-weight:var(--font-medium);border-bottom-color:var(--text)}.input-group{display:flex;gap:10px}.url-input{flex:1;padding:10px 16px;border:1px solid var(--input-border);border-radius:var(--radius-sm);font-size:14px;font-weight:var(--font-normal);color:var(--text);background:var(--input-bg);outline:none;transition:all var(--transition-normal)}.url-input:focus{border-color:var(--border-hover);background:var(--card-bg)}.url-input:focus-visible{box-shadow:0 0 0 3px var(--input-focus-ring)}.url-input:disabled{background:var(--input-bg);cursor:not-allowed;opacity:.5}.url-input::placeholder{color:var(--text-tertiary);font-weight:var(--font-light)}.file-name-display{flex:1;padding:10px 16px;border:1px solid var(--input-border);border-radius:var(--radius-sm);font-size:14px;font-weight:var(--font-normal);color:var(--text);background:var(--input-bg);cursor:pointer;display:flex;align-items:center;justify-content:space-between}.file-change-hint{font-size:12px;color:var(--text-tertiary)}@media (max-width: 768px){.input-card{padding:16px 20px 20px}.input-group{flex-direction:column}.url-input{font-size:13px}.input-tab{padding:8px 14px;font-size:12px}}@media (max-width: 640px){.input-group{flex-direction:column}}.progress-card{text-align:center;animation:fadeIn .4s ease}.progress-header{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:20px}.step-icon{font-size:28px}.step-info{display:flex;flex-direction:column;align-items:flex-start;gap:2px}.step-text{font-size:14px;font-weight:var(--font-medium);color:var(--text)}.step-sub{font-size:11px;color:var(--text-tertiary);font-weight:var(--font-light)}.progress-bar{height:4px;background:var(--progress-track);border-radius:2px;overflow:hidden;margin-bottom:12px}.progress-fill{height:100%;background:var(--surface-inverse);border-radius:2px;transition:width .6s ease}.progress-percent{font-size:12px;color:var(--text-tertiary);font-weight:var(--font-normal)}@media (max-width: 640px){.progress-header{gap:10px;margin-bottom:16px}.step-icon{font-size:24px}.step-text{font-size:13px}.step-sub{font-size:10px}}.video-card{padding:12px;margin-bottom:16px}.video-player-wrapper{position:relative;width:100%;padding-bottom:56.25%;background:#000;border-radius:var(--radius-sm);overflow:hidden}.video-iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.html5-player{padding-bottom:0!important;height:auto!important;background:#000}.native-video{position:static!important;width:100%;max-height:none;display:block}@media (max-width: 640px){.video-card{padding:8px;margin-bottom:12px}}.transcript-card{margin-top:16px}.transcript-toggle{width:100%;background:none;border:none;cursor:pointer;padding:0;text-align:left;display:flex;align-items:center;justify-content:space-between}.transcript-toggle h3{margin-bottom:0;font-size:15px;font-weight:var(--font-semibold);color:var(--text-secondary);transition:color var(--transition-normal)}.transcript-toggle:hover h3{color:var(--text)}.transcript-hint{font-size:11px;color:var(--text-tertiary);font-weight:var(--font-light)}.transcript-content{margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}.transcript-content p{font-size:13px;font-weight:var(--font-normal);color:var(--text-secondary);line-height:1.7;white-space:pre-wrap}.transcript-segments{margin-top:14px;padding-top:14px;border-top:1px solid var(--border-light);display:flex;flex-direction:column;gap:2px}.transcript-segments.inline{margin-top:12px;padding-top:12px}.transcript-hint-inline{font-size:12px;color:var(--text-tertiary);font-weight:var(--font-light);margin-bottom:8px}.segment-row{display:flex;gap:12px;padding:8px 10px;border-radius:6px;cursor:pointer;transition:background var(--transition-fast);align-items:baseline}.segment-row:hover{background:var(--section-hover-bg)}.segment-row:active{background:var(--accent-bg)}.segment-time{flex-shrink:0;font-size:12px;font-weight:var(--font-medium);font-variant-numeric:tabular-nums;color:var(--accent);background:var(--accent-bg);padding:2px 8px;border-radius:4px;min-width:44px;text-align:center;transition:all var(--transition-fast)}.segment-row:hover .segment-time{background:var(--accent-bg-hover);color:var(--accent)}.segment-text{font-size:13px;font-weight:var(--font-normal);color:var(--text-secondary);line-height:1.6;transition:color var(--transition-fast)}.segment-row:hover .segment-text{color:var(--text)}.transcript-tab-card{padding:28px 32px}.transcript-tab-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px;gap:12px}.transcript-tab-header h3{display:flex;align-items:center;gap:10px;margin-bottom:0;font-size:16px;font-weight:var(--font-semibold);color:var(--text);flex-shrink:0}.transcript-tab-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}.transcript-tab-actions .transcript-hint-inline{margin-bottom:0;font-size:12px;white-space:nowrap}.polished-badge{display:inline-block;padding:2px 10px;background:var(--polished-badge-bg);color:var(--accent);border:1px solid var(--polished-badge-border);border-radius:9999px;font-size:11px;font-weight:var(--font-medium);letter-spacing:0;vertical-align:middle}.polished-paragraphs{display:flex;flex-direction:column;gap:16px}.polished-paragraph{display:flex;gap:14px;padding:18px 20px;background:var(--section-bg);border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:all var(--transition-normal);align-items:flex-start}.polished-paragraph:hover{background:var(--section-hover-bg);border-color:var(--accent-border)}.polished-paragraph:active{background:var(--accent-bg)}.paragraph-time{flex-shrink:0;font-size:12px;font-weight:var(--font-medium);font-variant-numeric:tabular-nums;color:var(--accent);background:var(--accent-bg);padding:3px 10px;border-radius:6px;min-width:80px;text-align:center;white-space:nowrap}.polished-paragraph:hover .paragraph-time{background:var(--accent-bg-hover);color:#1d4ed8}.paragraph-text{font-size:15px;font-weight:var(--font-normal);color:var(--text);line-height:1.9;margin:0;text-align:justify}.polished-paragraph:hover .paragraph-text{color:var(--text)}.transcript-full-text{padding:4px 0}.transcript-line{font-size:14px;font-weight:var(--font-light);color:var(--text-secondary);line-height:1.85;margin:0 0 12px}@media (max-width: 768px){.transcript-tab-card{padding:20px 16px}.transcript-tab-header{flex-direction:column;align-items:flex-start;margin-bottom:16px}.transcript-tab-actions{width:100%;justify-content:space-between}.polished-paragraph{padding:14px 16px;gap:10px}.paragraph-time{min-width:64px;font-size:11px;padding:2px 8px}.paragraph-text{font-size:14px}.segment-row{gap:8px;padding:6px 8px}.segment-time{font-size:11px;min-width:36px;padding:1px 6px}.segment-text{font-size:12px}}.result-layout{display:flex;gap:0;align-items:flex-start;animation:fadeIn .5s ease;height:calc(100vh - 56px);overflow:hidden}.result-left{width:42%;min-width:440px;flex-shrink:0;display:flex;flex-direction:column;height:calc(100vh - 56px);overflow-y:auto;border-right:1px solid var(--border);background:var(--bg);padding:20px}.result-left::-webkit-scrollbar{width:5px}.result-left::-webkit-scrollbar-thumb{background:#80808040;border-radius:3px}.result-right{flex:1;min-width:0;height:calc(100vh - 56px);overflow-y:auto;padding:20px 24px;display:flex;flex-direction:column}.result-right::-webkit-scrollbar{width:5px}.result-right::-webkit-scrollbar-thumb{background:#80808040;border-radius:3px}.result-right .tab-content{flex:1;overflow-y:auto;padding-top:12px}.result-right .tab-content::-webkit-scrollbar{width:5px}.result-right .tab-content::-webkit-scrollbar-thumb{background:#0000001a;border-radius:3px}.result-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;flex-shrink:0}.result-header h2{font-size:18px;font-weight:var(--font-semibold);letter-spacing:-.02em}.side-video-card{background:var(--card-bg);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;margin-bottom:14px;flex-shrink:0}.side-video-card .video-player-wrapper{border-radius:var(--radius-lg) var(--radius-lg) 0 0}.video-title-label{padding:12px 16px;font-size:13px;font-weight:var(--font-medium);color:var(--text);line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.side-meta{display:flex;flex-wrap:wrap;gap:8px;padding:0;flex-shrink:0}.side-meta .meta-item{gap:4px}.side-meta .meta-label{font-size:11px;color:var(--text-tertiary);white-space:nowrap}.side-meta .tone-badge{font-size:11px;padding:3px 10px}.processing-time-badge{display:flex;align-items:center;gap:6px;margin-top:14px;padding:10px 14px;background:var(--accent-bg);border:1px solid var(--accent-border);border-radius:var(--radius-sm);font-size:13px;color:var(--accent);font-weight:var(--font-medium);flex-shrink:0}.processing-time-icon{font-size:16px}.btn-download{display:inline-flex;align-items:center;gap:4px;background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border);text-decoration:none;padding:5px 12px;font-size:12px;border-radius:6px;font-weight:var(--font-medium);cursor:pointer;transition:all var(--transition-normal)}.btn-download:hover{background:var(--accent-bg-hover);color:#1d4ed8;border-color:var(--accent)}.result-header-actions{display:flex;align-items:center;gap:6px;flex-wrap:wrap}@media (max-width: 768px){.result-layout{flex-direction:column;height:auto;overflow:visible}.result-left{width:100%;min-width:0;height:auto;border-right:none;border-bottom:1px solid var(--border);padding:16px}.result-right{height:auto;padding:16px}.result-header h2{font-size:16px}.side-meta{gap:6px}.native-video{max-height:300px}}@media (max-width: 900px){.result-layout{flex-direction:column}.result-left{width:100%;position:static;top:auto}.side-meta{margin-bottom:12px}.native-video{max-height:280px}}@media (max-width: 640px){.result-layout{flex-direction:column;gap:12px}.result-left{position:static}.side-video-card .video-player-wrapper{border-radius:var(--radius-sm)}.native-video{max-height:220px}}.result-tabs{display:flex;gap:0;margin-bottom:0;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0}.result-tab{flex:1;padding:13px 20px;font-size:14px;font-weight:var(--font-normal);background:transparent;border:none;cursor:pointer;color:var(--text-secondary);transition:all var(--transition-normal);border-right:1px solid var(--border);position:relative}.result-tab:last-child{border-right:none}.result-tab:hover{background:var(--overlay);color:var(--text)}.result-tab.active{background:var(--surface-inverse);color:var(--on-surface-inverse);font-weight:var(--font-medium)}@keyframes tabFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.tab-content{animation:tabFadeIn .25s ease}.result-card h3{font-size:15px;font-weight:var(--font-semibold);margin-bottom:14px;color:var(--text)}.overview-text{font-size:14px;font-weight:var(--font-normal);color:var(--text-secondary);line-height:1.8}.empty-hint{font-size:14px;color:var(--text-tertiary);text-align:center;padding:20px 0}.tone-badge{display:inline-block;padding:5px 14px;background:var(--badge-bg);color:var(--text-secondary);border:1px solid var(--badge-border);border-radius:9999px;font-size:13px;font-weight:var(--font-normal)}.sections{display:flex;flex-direction:column;gap:10px}.section-item{display:flex;gap:14px;padding:16px;background:var(--section-bg);border-radius:var(--radius-sm);border:1px solid transparent;transition:background var(--transition-normal),border-color var(--transition-normal)}.section-item:hover{background:var(--overlay-hover);border-color:var(--border)}.section-time{flex-shrink:0;padding:3px 10px;background:var(--badge-bg);color:var(--text-secondary);border-radius:9999px;font-size:12px;font-weight:var(--font-medium);font-variant-numeric:tabular-nums;height:fit-content}.section-body h4{font-size:14px;font-weight:var(--font-semibold);margin-bottom:4px;color:var(--text)}.section-body p{font-size:13px;font-weight:var(--font-light);color:var(--text-secondary);line-height:1.6}.section-item.clickable{cursor:pointer}.section-item.clickable:hover{background:var(--section-hover-bg);border-color:var(--accent-border)}.section-item.clickable .section-time{background:var(--accent-bg);color:var(--accent)}.key-points{padding-left:0;list-style:none}.key-points li{font-size:14px;font-weight:var(--font-normal);color:var(--text);padding:10px 0;line-height:1.7;position:relative;border-bottom:1px solid var(--border-light);display:flex;gap:12px;align-items:flex-start}.key-points li:last-child{border-bottom:none}.key-point-num{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--accent-bg);color:var(--accent);font-size:11px;font-weight:var(--font-semibold);display:flex;align-items:center;justify-content:center;margin-top:2px}.overview-meta{display:flex;flex-wrap:wrap;gap:20px;padding:20px 32px}.meta-item{display:flex;align-items:center;gap:10px}.meta-label{font-size:13px;font-weight:var(--font-medium);color:var(--text-secondary)}.model-badge{background:var(--model-badge-bg);color:var(--model-badge-text);border-color:var(--model-badge-border)}.source-badge{background:var(--source-badge-bg);color:var(--source-badge-text);border-color:var(--source-badge-border)}.usage-badge{background:var(--success-bg);color:var(--success);border-color:var(--success-bg)}.cost-badge{background:var(--purple-bg);color:var(--purple);border-color:var(--purple-bg);font-variant-numeric:tabular-nums}.result-tabs.compact .result-tab{padding:8px 12px;font-size:13px}.compact-card{padding:20px}@media (max-width: 768px){.result-tab{padding:10px 14px;font-size:13px}.result-card h3{font-size:14px}.overview-text{font-size:13px;line-height:1.7}.section-item{padding:14px 12px}.key-points li{font-size:13px;padding:8px 0}}@media (max-width: 640px){.section-item{flex-direction:column;gap:8px}.section-time{align-self:flex-start}.result-tabs.compact .result-tab{padding:8px 6px;font-size:11px}.compact-card{padding:16px}}.history-view{animation:fadeIn .4s ease}.history-header-section{margin-bottom:24px}.history-header-section h2{font-size:24px;font-weight:var(--font-semibold);letter-spacing:-.02em;margin-bottom:6px}.history-subtitle{font-size:13px;color:var(--text-tertiary);font-weight:var(--font-light)}.history-loading{text-align:center;font-size:14px;color:var(--text-tertiary);padding:40px 0}.history-empty{text-align:center;padding:60px 20px}.history-empty-icon{font-size:48px;display:block;margin-bottom:12px}.history-empty p{font-size:14px;color:var(--text-secondary);margin-bottom:16px}.history-list{display:flex;flex-direction:column;gap:8px}.history-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px!important;cursor:pointer;transition:all var(--transition-normal)}.history-item:hover{border-color:var(--accent-border);background:var(--section-hover-bg)}.history-item-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.history-item-title{font-size:14px;font-weight:var(--font-medium);color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.history-source-tag{font-size:11px;font-weight:var(--font-medium);color:var(--accent);background:var(--accent-bg);padding:2px 8px;border-radius:4px}.history-status-tag{font-size:11px;font-weight:var(--font-medium);color:#2e7d32;background:#4caf5014;padding:2px 8px;border-radius:4px}.history-status-tag.failed{color:#c62828;background:#f4433614}.history-date{font-size:11px;color:var(--text-tertiary);font-weight:var(--font-light)}.history-item-url{font-size:11px;color:var(--text-tertiary);font-weight:var(--font-light);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.history-delete{flex-shrink:0;opacity:0;transition:opacity var(--transition-fast)}.history-item:hover .history-delete{opacity:1}@media (max-width: 768px){.history-item{padding:14px 16px!important}.history-item-title{font-size:13px}.history-header-section h2{font-size:20px}.history-empty{padding:40px 16px}}.toast-container{position:fixed;top:80px;right:var(--space-lg);z-index:10000;display:flex;flex-direction:column;gap:var(--space-sm);max-width:380px;width:100%;pointer-events:none}.toast-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow-lg);cursor:pointer;pointer-events:auto;animation:toastSlideIn var(--transition-slow) ease-out;transition:opacity var(--transition-normal),transform var(--transition-normal)}.toast-item:hover{opacity:.9;transform:translate(-4px)}.toast-icon{font-size:var(--text-lg);flex-shrink:0}.toast-message{font-size:var(--text-sm);line-height:1.4;color:var(--text)}.toast-success{border-left:3px solid #22c55e}.toast-error{border-left:3px solid #ef4444}.toast-info{border-left:3px solid #3b82f6}@keyframes toastSlideIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@media (max-width: 480px){.toast-container{right:var(--space-md);left:var(--space-md);max-width:none}}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton-line{height:14px;border-radius:4px;background:linear-gradient(90deg,var(--section-bg, rgba(0,0,0,.04)) 0%,var(--overlay-hover, rgba(0,0,0,.08)) 40%,var(--section-bg, rgba(0,0,0,.04)) 80%);background-size:800px 100%;animation:shimmer 1.8s ease-in-out infinite}.skeleton-block{background:var(--card-bg);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--border);margin-bottom:14px}.skeleton-title{height:22px;width:50%;border-radius:4px;background:linear-gradient(90deg,var(--section-bg, rgba(0,0,0,.04)) 0%,var(--overlay-hover, rgba(0,0,0,.08)) 40%,var(--section-bg, rgba(0,0,0,.04)) 80%);background-size:800px 100%;animation:shimmer 1.8s ease-in-out infinite;margin-bottom:16px}.skeleton-list-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border-light, rgba(0,0,0,.04))}.skeleton-list-item:last-child{border-bottom:none}.skeleton-circle{width:10px;height:10px;border-radius:50%;background:var(--section-bg, rgba(0,0,0,.04));flex-shrink:0;margin-top:4px}.skeleton-list-content{flex:1;display:flex;flex-direction:column;gap:6px}.skeleton-transcript-row{display:flex;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px solid var(--border-light, rgba(0,0,0,.04))}.skeleton-transcript-row:last-child{border-bottom:none}.skeleton-time{height:12px;border-radius:3px;background:var(--section-bg, rgba(0,0,0,.04));flex-shrink:0;margin-top:2px}.skeleton-tabs{display:flex;gap:6px;border-bottom:2px solid var(--border);padding-bottom:12px}.skeleton-tab{height:18px;border-radius:4px;background:linear-gradient(90deg,var(--section-bg, rgba(0,0,0,.04)) 0%,var(--overlay-hover, rgba(0,0,0,.08)) 40%,var(--section-bg, rgba(0,0,0,.04)) 80%);background-size:800px 100%;animation:shimmer 1.8s ease-in-out infinite}.skeleton-video-placeholder{aspect-ratio:16 / 9;border-radius:var(--radius-md);background:linear-gradient(90deg,var(--section-bg, rgba(0,0,0,.04)) 0%,var(--overlay-hover, rgba(0,0,0,.08)) 40%,var(--section-bg, rgba(0,0,0,.04)) 80%);background-size:800px 100%;animation:shimmer 1.8s ease-in-out infinite;margin-top:16px}.skeleton-group{display:flex;flex-direction:column;gap:14px}[data-theme=dark] .skeleton-line,[data-theme=dark] .skeleton-title,[data-theme=dark] .skeleton-tab,[data-theme=dark] .skeleton-video-placeholder{background:linear-gradient(90deg,#ffffff0a,#ffffff14,#ffffff0a 80%);background-size:800px 100%}[data-theme=dark] .skeleton-circle,[data-theme=dark] .skeleton-time{background:#ffffff0f}.app{max-width:100%;margin:0 auto;padding:0;min-height:100vh;display:flex;flex-direction:column}.main{flex:1}.app .main:has(.input-card){padding:48px 24px}.app .main:has(.history-view){padding:48px 24px 96px}.app>.footer{padding:0 24px}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.header{text-align:center;margin-bottom:48px;padding:48px 24px 0}.logo{font-size:clamp(32px,6vw,48px);margin-bottom:12px;display:inline-block}.header h1{font-size:clamp(24px,5vw,36px);font-weight:var(--font-semibold);color:var(--text);letter-spacing:-.02em;margin-bottom:10px}.subtitle{color:var(--text-secondary);font-size:15px;font-weight:var(--font-light);margin-bottom:16px}.features-bar{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.features-bar span{font-size:12px;color:var(--text-tertiary);background:var(--overlay);padding:4px 12px;border-radius:999px;border:1px solid var(--border)}.card{background:var(--card-bg);border-radius:var(--radius-lg);padding:32px;border:1px solid var(--border);box-shadow:var(--card-shadow);margin-bottom:16px;transition:border-color var(--transition-normal),box-shadow var(--transition-normal),background var(--transition-normal)}.card:hover{border-color:var(--border-hover);box-shadow:var(--card-shadow-hover)}.btn{border:1px solid var(--input-border);border-radius:var(--radius-sm);padding:10px 22px;font-size:13px;font-weight:var(--font-medium);cursor:pointer;transition:all var(--transition-normal);white-space:nowrap}.btn:focus-visible{box-shadow:0 0 0 3px var(--input-focus-ring)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--surface-inverse);color:var(--on-surface-inverse);border-color:var(--surface-inverse)}.btn-primary:hover:not(:disabled){background:var(--surface-inverse-hover);border-color:var(--surface-inverse-hover)}.btn-outline{background:transparent;color:var(--text-secondary);border:1px solid var(--input-border)}.btn-outline:hover{background:var(--overlay-hover);color:var(--text)}.btn-sm{padding:4px 12px;font-size:12px;border-radius:6px;background:transparent;color:var(--text-secondary);border:1px solid var(--badge-border)}.btn-sm:hover{background:var(--overlay-hover)}.error-msg{margin-top:14px;padding:10px 14px;background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius-sm);color:var(--error);font-size:13px;font-weight:var(--font-light);display:flex;align-items:center;justify-content:space-between}.footer{text-align:center;padding:32px 24px;color:var(--text-tertiary);font-size:var(--text-xs)}.url-examples{margin-top:14px;padding-top:12px;border-top:1px solid var(--navbar-border)}.examples-label{font-size:12px;font-weight:var(--font-medium);color:var(--text-tertiary);margin-bottom:8px}.examples-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.example-item{display:flex;align-items:flex-start;gap:6px;padding:6px 10px;background:var(--section-bg);border-radius:6px;border:1px solid var(--border-light)}.example-platform{flex-shrink:0;font-size:11px;font-weight:var(--font-medium);color:var(--text);background:var(--badge-bg);padding:2px 8px;border-radius:4px;min-width:56px;text-align:center}.example-url{font-size:11px;font-weight:var(--font-light);color:var(--text-tertiary);word-break:break-all;line-height:1.5;background:none;padding:0}@media (max-width: 640px){.app{padding:32px 16px 64px}.header{margin-bottom:32px}.btn{width:100%;text-align:center}.card{padding:20px}.features-bar{gap:8px}.features-bar span{font-size:11px;padding:3px 10px}.examples-grid{grid-template-columns:1fr}}:root{--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--text-xs: 11px;--text-sm: 13px;--text-base: 15px;--text-lg: 18px;--text-xl: 22px;--text-2xl: 28px;--text-3xl: 36px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .1);--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease}:root{--bg: #fafafa;--card-bg: #ffffff;--text: #0f172a;--text-secondary: #334155;--text-tertiary: #475569;--surface-inverse: #0f172a;--on-surface-inverse: #ffffff;--surface-inverse-hover: #1e293b;--border: rgba(0, 0, 0, .07);--border-hover: rgba(0, 0, 0, .14);--border-light: rgba(0, 0, 0, .04);--overlay: rgba(0, 0, 0, .025);--overlay-hover: rgba(0, 0, 0, .05);--card-shadow: 0 1px 3px rgba(0, 0, 0, .04);--card-shadow-hover: 0 4px 16px rgba(0, 0, 0, .07);--navbar-bg: rgba(250, 250, 250, .72);--navbar-border: rgba(0, 0, 0, .06);--input-bg: rgba(0, 0, 0, .015);--input-border: rgba(0, 0, 0, .1);--input-focus-ring: rgba(0, 0, 0, .06);--progress-track: rgba(0, 0, 0, .06);--badge-bg: rgba(0, 0, 0, .04);--badge-border: rgba(0, 0, 0, .07);--section-bg: rgba(0, 0, 0, .02);--section-hover-bg: rgba(59, 130, 246, .04);--accent: #2563eb;--accent-soft: #3b82f6;--accent-bg: rgba(59, 130, 246, .08);--accent-bg-hover: rgba(59, 130, 246, .15);--accent-border: rgba(59, 130, 246, .18);--error: #ef4444;--error-bg: #fef2f2;--error-border: #fecaca;--success: #2e7d32;--success-bg: rgba(76, 175, 80, .08);--warning: #e65100;--warning-bg: rgba(255, 152, 0, .08);--purple: #7b1fa2;--purple-bg: rgba(156, 39, 176, .08);--model-badge-bg: #eff6ff;--model-badge-text: #2563eb;--model-badge-border: #bfdbfe;--source-badge-bg: rgba(255, 152, 0, .08);--source-badge-text: #e65100;--source-badge-border: rgba(255, 152, 0, .2);--polished-badge-bg: linear-gradient(135deg, #eff6ff, #dbeafe);--polished-badge-border: #bfdbfe;--font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "Helvetica", "Arial", sans-serif;--font-light: 400;--font-normal: 400;--font-medium: 500;--font-semibold: 600}[data-theme=dark]{--bg: #0d0d0d;--card-bg: #1a1a1a;--text: #f0f0f0;--text-secondary: #b0b0b0;--text-tertiary: #808080;--surface-inverse: #f0f0f0;--on-surface-inverse: #0d0d0d;--surface-inverse-hover: #d4d4d4;--border: rgba(255, 255, 255, .08);--border-hover: rgba(255, 255, 255, .16);--border-light: rgba(255, 255, 255, .04);--overlay: rgba(255, 255, 255, .025);--overlay-hover: rgba(255, 255, 255, .05);--card-shadow: 0 1px 3px rgba(0, 0, 0, .3);--card-shadow-hover: 0 4px 16px rgba(0, 0, 0, .4);--navbar-bg: rgba(13, 13, 13, .8);--navbar-border: rgba(255, 255, 255, .06);--input-bg: rgba(255, 255, 255, .04);--input-border: rgba(255, 255, 255, .1);--input-focus-ring: rgba(255, 255, 255, .08);--progress-track: rgba(255, 255, 255, .08);--badge-bg: rgba(255, 255, 255, .06);--badge-border: rgba(255, 255, 255, .08);--section-bg: rgba(255, 255, 255, .03);--section-hover-bg: rgba(96, 165, 250, .08);--accent: #60a5fa;--accent-soft: #93c5fd;--accent-bg: rgba(96, 165, 250, .12);--accent-bg-hover: rgba(96, 165, 250, .2);--accent-border: rgba(96, 165, 250, .2);--error: #f87171;--error-bg: rgba(239, 68, 68, .1);--error-border: rgba(239, 68, 68, .3);--success: #4ade80;--success-bg: rgba(74, 222, 128, .1);--warning: #fbbf24;--warning-bg: rgba(251, 191, 36, .1);--purple: #c084fc;--purple-bg: rgba(192, 132, 252, .12);--model-badge-bg: rgba(96, 165, 250, .12);--model-badge-text: #93c5fd;--model-badge-border: rgba(96, 165, 250, .2);--source-badge-bg: rgba(251, 191, 36, .1);--source-badge-text: #fbbf24;--source-badge-border: rgba(251, 191, 36, .2);--polished-badge-bg: linear-gradient(135deg, rgba(96,165,250,.12), rgba(59,130,246,.06));--polished-badge-border: rgba(96, 165, 250, .2)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-stack);background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background var(--transition-normal),color var(--transition-normal)}input,button,textarea,select{font-family:inherit;letter-spacing:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#80808059;border-radius:3px}[data-theme=dark] ::-webkit-scrollbar-thumb{background:#b4b4b440}html{scrollbar-width:thin;scrollbar-color:rgba(128,128,128,.35) transparent}