:root{--dc-primary: #00ff87;--dc-primary-hover: #00ef77;--dc-primary-dim: #00b894;--dc-primary-10: rgba(0, 255, 135, .1);--dc-primary-20: rgba(0, 255, 135, .2);--dc-primary-35: rgba(0, 255, 135, .35);--dc-bg: #04040a;--dc-surface: #08080f;--dc-border: #1a1a2e;--dc-border-light: #2a2a3e;--dc-text: #e2e8f0;--dc-text-dim: #94a3b8;--dc-text-muted: #6b7280;--dc-text-tint: #86efac;--dc-danger: #ef4444;--dc-success: #10b981}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.2)}*{scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.1) transparent}body{margin:0;font-family:Monaco,Menlo,Ubuntu Mono,monospace;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100vh;overflow:hidden}#root{height:100vh;overflow:hidden}.codecapsule-embed,.devcapsules-embed,.sql-embed{width:100%;height:100vh;background-color:var(--dc-bg);color:var(--dc-text);font-family:Monaco,Menlo,Ubuntu Mono,monospace;display:flex;flex-direction:column;overflow:hidden}.embed-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--dc-border);background-color:var(--dc-surface);gap:12px;flex-wrap:wrap}.header-left{display:flex;align-items:center;gap:12px;flex:1;min-width:0}.embed-title{font-size:16px;font-weight:600;margin:0;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.embed-tags{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.tag{padding:3px 8px;border-radius:4px;font-size:11px;font-weight:500;letter-spacing:.02em}.tag-language{background-color:var(--dc-primary-20);color:var(--dc-text-tint)}.tag-concept{background-color:#94a3b81f;color:var(--dc-text-dim)}.tag-difficulty{background-color:#4b556380;color:#d1d5db}.embed-controls{display:flex;align-items:center;gap:6px}.control-btn{padding:7px;background:none;border:1px solid transparent;color:var(--dc-text-dim);cursor:pointer;border-radius:6px;transition:all .15s;display:flex;align-items:center;justify-content:center}.control-btn:hover{color:#fff;background-color:#ffffff0f}.control-btn.active{color:var(--dc-primary);background-color:var(--dc-primary-10);border-color:#00ff8733}.control-btn:disabled{color:#374151;cursor:not-allowed}.run-btn{background-color:var(--dc-primary);color:#04040a;padding:7px 16px;border:none;border-radius:6px;font-weight:600;font-size:13px;cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .15s}.run-btn:hover{background-color:var(--dc-primary-hover);box-shadow:0 0 12px var(--dc-primary-35)}.run-btn:disabled{background-color:#1a1a2e;color:#4b5563;cursor:not-allowed;box-shadow:none}.embed-main,.sql-main{display:flex;flex:1;min-height:0;overflow:hidden;height:calc(100vh - 120px)}.instructions-panel{width:35%;border-right:1px solid var(--dc-border);display:flex;flex-direction:column;background-color:var(--dc-surface);overflow:hidden;height:100%;min-height:0}.instructions-header{padding:12px 16px;border-bottom:1px solid var(--dc-border);display:flex;align-items:center;justify-content:space-between}.instructions-title{font-weight:600;font-size:14px;margin:0;color:#fff}.collapse-btn{background:none;border:none;color:var(--dc-text-dim);cursor:pointer;transition:color .15s;padding:4px;display:flex}.collapse-btn:hover{color:#fff}.instructions-content{padding:16px;font-size:14px;color:var(--dc-text);line-height:1.6;overflow-y:auto;overflow-x:hidden;flex:1;min-height:0}.instructions-section{margin-bottom:20px}.instructions-section:last-child{margin-bottom:0}.section-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--dc-text-dim);margin:0 0 10px}.md-content{color:#cbd5e1;line-height:1.7}.md-h1{color:#fff;font-size:18px;font-weight:600;margin:0 0 8px}.md-h1:first-child{margin-top:0}.md-h2{color:#e5e7eb;font-size:15px;font-weight:600;margin:16px 0 6px}.md-h3{color:#d1d5db;font-size:14px;font-weight:600;margin:12px 0 4px}.md-p{color:#cbd5e1;margin:8px 0}.md-p:last-child{margin-bottom:0}.md-li{color:#cbd5e1;padding-left:8px;list-style:disc;margin:4px 0 4px 16px}.md-inline-code{background-color:#00ff8714;color:var(--dc-text-tint);padding:2px 6px;border-radius:4px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.9em}.md-code-block{background-color:#0006;border:1px solid var(--dc-border);border-radius:6px;padding:12px;margin:10px 0;overflow-x:auto;font-size:13px;line-height:1.5}.md-code-block code{color:var(--dc-text);font-family:Monaco,Menlo,Ubuntu Mono,monospace}.problem-statement{color:#cbd5e1;line-height:1.6;margin:0;padding:0}.problem-statement .problem-h1{color:#fff;font-size:20px;font-weight:600;margin:0 0 8px}.problem-statement .problem-h1:first-child{margin-top:0}.problem-statement .problem-h2{color:#e5e7eb;font-size:16px;font-weight:500;margin:16px 0 6px}.problem-statement .problem-h3{color:#d1d5db;font-size:14px;font-weight:500;margin:12px 0 4px}.problem-statement .problem-p{color:#cbd5e1;margin:8px 0}.problem-statement .problem-p:last-child{margin-bottom:0}.problem-statement .problem-ul{margin:8px 0;padding-left:20px}.problem-statement .problem-ul:last-child{margin-bottom:0}.problem-statement .problem-li{color:#cbd5e1;margin:4px 0;padding-left:8px}.test-case-list{display:flex;flex-direction:column;gap:8px}.test-case-preview{background-color:#0000004d;border:1px solid var(--dc-border);border-radius:6px;padding:10px 12px}.tc-title{font-size:12px;font-weight:600;color:var(--dc-text-dim);margin-bottom:6px}.tc-row{display:flex;gap:8px;align-items:baseline;margin-bottom:3px;font-size:13px}.tc-label{color:var(--dc-text-muted);flex-shrink:0;font-size:12px}.tc-value{color:var(--dc-text-tint);font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:12px;word-break:break-all}.tc-more{color:var(--dc-text-muted);font-size:12px;margin-top:6px;font-style:italic}.hints-section{margin-top:12px}.hint-card{background-color:#00ff870d;border:1px solid rgba(0,255,135,.15);border-radius:6px;padding:10px 12px;margin-bottom:8px}.hint-header{display:flex;align-items:center;gap:6px;margin-bottom:4px}.hint-icon{font-size:14px}.hint-title{font-size:12px;font-weight:600;color:var(--dc-text-tint)}.hint-text{color:#cbd5e1;font-size:13px;line-height:1.5}.hint-more{color:var(--dc-text-muted);font-size:12px;font-style:italic;margin-top:4px}.concept-tags{display:flex;flex-wrap:wrap;gap:6px}.concept-tag{background-color:var(--dc-primary-10);color:var(--dc-text-tint);padding:4px 10px;border-radius:12px;font-size:12px;font-weight:500}.collapsed-btn{width:32px;border-right:1px solid var(--dc-border);display:flex;align-items:center;justify-content:center;background:none;border-top:none;border-bottom:none;border-left:none;color:var(--dc-text-dim);cursor:pointer;transition:background-color .15s}.collapsed-btn:hover{background-color:#ffffff0a}.editor-area{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden}.editor-wrapper{flex:1;min-height:0}.solution-banner{display:flex;align-items:center;gap:8px;padding:8px 16px;background-color:#00ff8714;border-bottom:1px solid rgba(0,255,135,.15);color:var(--dc-text-tint);font-size:13px}.solution-back-btn{margin-left:auto;background:none;border:1px solid rgba(0,255,135,.3);color:var(--dc-primary);padding:3px 10px;border-radius:4px;font-size:12px;cursor:pointer;transition:all .15s}.solution-back-btn:hover{background-color:var(--dc-primary-10)}.console-panel{height:260px;min-height:140px;border-top:1px solid var(--dc-border);display:flex;flex-direction:column;background-color:var(--dc-surface);flex-shrink:0;transition:height .3s ease}.console-panel.console-split{height:320px;min-height:200px}.console-split-body{display:flex;flex:1;min-height:0;overflow:hidden}.console-split .console-split-body{display:grid;grid-template-columns:1fr 1fr;gap:0}.console-tabs{display:flex;align-items:center;border-bottom:1px solid var(--dc-border);padding:0 4px}.console-tab{padding:8px 14px;font-size:13px;font-weight:500;background:none;border:none;color:var(--dc-text-muted);cursor:pointer;transition:color .15s;border-bottom:2px solid transparent;display:flex;align-items:center;gap:6px}.console-tab:hover{color:var(--dc-text)}.console-tab.active{color:#fff;border-bottom-color:var(--dc-primary)}.tab-badge{font-size:11px;padding:1px 6px;border-radius:8px;font-weight:600}.tab-badge.pass{background-color:#10b98126;color:#34d399}.tab-badge.fail{background-color:#ef444426;color:#fca5a5}.shortcut-hint{margin-left:auto;color:var(--dc-text-muted);font-size:11px;display:flex;align-items:center;gap:3px}.shortcut-hint kbd{background-color:#ffffff14;border:1px solid rgba(255,255,255,.12);border-radius:3px;padding:1px 5px;font-family:inherit;font-size:10px;color:var(--dc-text-dim)}.console-content{flex:1;overflow-y:auto;padding:12px 16px;min-height:0}.console-split .console-content{border-right:1px solid var(--dc-border)}.edge-tab-indicator{display:flex;align-items:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:600;color:var(--dc-primary, #00ff87);cursor:default;border:none;background:none;animation:edgeFadeIn .3s ease}.edge-tab-dot{width:6px;height:6px;border-radius:50%;background:var(--dc-primary, #00ff87);animation:edgePulse 1.2s ease-in-out infinite;box-shadow:0 0 6px #00ff8780}.edge-panel{display:flex;flex-direction:column;overflow-y:auto;min-height:0;animation:edgeSlideIn .35s ease;background:rgba(0,255,135,.015)}@keyframes edgeSlideIn{0%{opacity:0;transform:translate(12px)}to{opacity:1;transform:translate(0)}}.edge-panel-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid rgba(0,255,135,.12);background:rgba(0,255,135,.04);flex-shrink:0}.edge-panel-title{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--dc-primary, #00ff87)}.edge-panel-content{flex:1;overflow-y:auto;overflow-x:hidden;min-height:0}.stdout-details{margin-top:8px;border-top:1px solid var(--dc-border)}.stdout-summary{padding:6px 0;font-size:12px;color:var(--dc-text-muted);cursor:pointer;font-weight:500}.stdout-summary:hover{color:var(--dc-text)}.stdout-details .output-text{margin:0;padding:8px 0;font-size:12px}.test-result{margin-bottom:12px}.test-success-banner{display:flex;align-items:center;gap:8px;padding:8px 12px;background-color:#10b9811a;border:1px solid rgba(16,185,129,.2);border-radius:6px;margin-bottom:10px}.test-fail-banner{display:flex;align-items:center;gap:8px;padding:8px 12px;background-color:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:6px;margin-bottom:10px}.test-icon{font-size:16px}.test-label{font-size:13px;font-weight:600;color:var(--dc-text)}.test-success{color:var(--dc-success)}.test-error{color:var(--dc-danger)}.test-pending{color:var(--dc-text-muted)}.test-list{list-style:none;padding:0;margin:0}.test-item{display:flex;align-items:flex-start;gap:8px;font-size:13px;margin-bottom:8px;padding:6px 0}.test-item.test-pass .test-check{color:#34d399}.test-item.test-fail .test-check{color:#f87171}.test-check{font-weight:700;flex-shrink:0;width:16px;text-align:center}.test-desc{color:var(--dc-text)}.test-detail{display:flex;flex-direction:column;gap:6px;flex:1;min-width:0}.test-diff{background-color:#0000004d;border:1px solid var(--dc-border);border-radius:6px;padding:8px 10px;margin-top:4px}.diff-row{display:flex;gap:8px;align-items:baseline;margin-bottom:4px;font-size:12px}.diff-row:last-child{margin-bottom:0}.diff-label{color:var(--dc-text-muted);flex-shrink:0;font-size:11px;min-width:60px}.diff-value{font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:12px;word-break:break-all}.diff-value.expected{color:#34d399}.diff-value.actual{color:#f87171}.diff-value.error{color:#fbbf24}.raw-error-section{margin-top:12px}.error-toggle{background:none;border:none;color:var(--dc-text-muted);font-size:13px;cursor:pointer;transition:color .15s;padding:0}.error-toggle:hover{color:var(--dc-text)}.raw-error{margin-top:8px;background-color:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:6px;padding:12px}.raw-error pre{color:#fca5a5;font-size:12px;white-space:pre-wrap;margin:0;font-family:Monaco,Menlo,Ubuntu Mono,monospace}.reset-btn{background:none;border:1px solid var(--dc-border-light);color:var(--dc-text-dim);padding:6px 14px;border-radius:6px;font-size:13px;cursor:pointer;transition:all .15s}.reset-btn:hover{border-color:var(--dc-text-dim);color:var(--dc-text)}.edge-analyzing{display:flex;align-items:center;gap:10px;padding:14px 16px;color:var(--dc-primary, #00ff87);font-size:13px;animation:edgeFadeIn .3s ease}.edge-pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--dc-primary, #00ff87);flex-shrink:0;animation:edgePulse 1.2s ease-in-out infinite}@keyframes edgePulse{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}}@keyframes edgeFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.edge-levels{animation:edgeFadeIn .3s ease}.edge-level{padding:12px 16px}.edge-level+.edge-level{border-top:1px solid rgba(255,255,255,.06)}.edge-hint{background:rgba(251,191,36,.04);border-left:3px solid rgba(251,191,36,.4)}.edge-fix{background:rgba(0,255,135,.03);border-left:3px solid rgba(0,255,135,.25)}.edge-explanation{background:rgba(96,165,250,.04);border-left:3px solid rgba(96,165,250,.3)}.edge-level-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.edge-icon{font-size:14px;line-height:1}.edge-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--dc-primary, #00ff87)}.edge-hint .edge-label{color:#fbbf24}.edge-fix .edge-label{color:var(--dc-primary, #00ff87)}.edge-explanation .edge-label{color:#60a5fa}.edge-line{font-size:11px;color:var(--dc-text-muted, #6b7280);background:rgba(255,255,255,.05);padding:2px 8px;border-radius:4px;margin-left:auto}.edge-cached{font-size:11px;color:var(--dc-primary, #00ff87);background:rgba(0,255,135,.08);padding:2px 8px;border-radius:4px}.edge-text{font-size:13px;line-height:1.6;color:var(--dc-text-secondary, #94a3b8);margin:0}.edge-hint .edge-text{color:#fcd34d}.edge-code{margin:4px 0 0;padding:10px 12px;border-radius:6px;background:rgba(0,0,0,.3);font-size:13px;font-family:Fira Code,Cascadia Code,Consolas,monospace;color:var(--dc-primary, #00ff87);overflow-x:auto;white-space:pre;line-height:1.5}.edge-code code{color:inherit;font:inherit}.edge-reveal-btn{display:block;width:100%;padding:10px 16px;border:none;border-top:1px solid rgba(255,255,255,.06);background:transparent;color:var(--dc-primary, #00ff87);font-size:12px;font-weight:600;cursor:pointer;text-align:left;transition:background .15s ease}.edge-reveal-btn:hover{background:rgba(0,255,135,.06)}.status-bar{padding:6px 16px;border-top:1px solid var(--dc-border);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--dc-text-muted);background-color:var(--dc-surface);flex-shrink:0;height:36px;min-height:36px}.status-left{display:flex;align-items:center;gap:10px}.status-dot{width:6px;height:6px;border-radius:50%;background-color:var(--dc-primary);box-shadow:0 0 6px var(--dc-primary-35)}.status-running{color:var(--dc-primary);font-weight:500;animation:pulse-text 1.5s infinite}@keyframes pulse-text{0%,to{opacity:1}50%{opacity:.5}}.status-right .brand{color:var(--dc-primary);font-weight:600}.loading-container{display:flex;align-items:center;justify-content:center;padding:32px;background-color:var(--dc-bg);color:#fff;height:100vh}.spinner{width:32px;height:32px;border:2px solid var(--dc-border);border-top:2px solid var(--dc-primary);border-radius:50%;animation:spin 1s linear infinite}.spinner.small{width:14px;height:14px;border-width:2px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-container{padding:16px;background-color:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:8px;color:#fca5a5;height:100vh;display:flex;align-items:center;justify-content:center}.no-output{color:var(--dc-text-muted);font-size:13px;line-height:1.6}.no-output kbd{background-color:#ffffff14;border:1px solid rgba(255,255,255,.12);border-radius:3px;padding:1px 5px;font-family:inherit;font-size:11px}.output-text{color:var(--dc-text);font-size:13px;white-space:pre-wrap;font-family:Monaco,Menlo,Ubuntu Mono,monospace}@media (max-width: 640px){.embed-main{flex-direction:column}.instructions-panel{width:100%;max-height:35vh;border-right:none;border-bottom:1px solid var(--dc-border)}.embed-header{padding:8px 12px}.header-left{flex-direction:column;align-items:flex-start;gap:4px}.embed-title{font-size:14px}.embed-tags,.shortcut-hint{display:none}.console-panel{height:200px}.console-split .console-split-body{grid-template-columns:1fr;grid-template-rows:1fr 1fr}.console-panel.console-split{height:380px}.console-split .console-content{border-right:none;border-bottom:1px solid var(--dc-border)}}.sql-embed .sql-main{display:flex;flex:1;min-height:0;overflow:hidden}.sql-editor-area{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden}.sql-results-panel{height:350px;border-top:1px solid var(--dc-border);display:flex;flex-direction:column;background-color:var(--dc-surface);flex-shrink:0;min-height:0}.data-table-container{overflow:auto;max-height:180px}.data-table{width:100%;border-collapse:collapse;font-size:13px;font-family:Monaco,Menlo,Ubuntu Mono,monospace}.data-table th{background-color:#374151;color:#e2e8f0;padding:8px 12px;text-align:left;font-weight:500;border-bottom:1px solid #4b5563;position:sticky;top:0}.data-table td{padding:6px 12px;border-bottom:1px solid #374151;color:#cbd5e1}.data-table tr:hover{background-color:#37415180}.schema-tree{color:#cbd5e1;font-size:13px}.no-results{color:#6b7280;font-size:14px;text-align:center;padding:20px}.sql-error{color:#fca5a5}.terminal-embed .terminal-main{display:flex;flex:1;min-height:0;overflow:hidden}.quest-panel{width:300px;border-right:1px solid var(--dc-border);display:flex;flex-direction:column;background-color:var(--dc-surface);overflow:hidden}.terminal-area{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden;padding:16px}.terminal-container{flex:1;background-color:#0f172a;border-radius:8px;overflow:hidden;display:flex;flex-direction:column}.terminal-header{background-color:#1e293b;padding:8px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #334155}.terminal-controls{display:flex;gap:6px}.terminal-dot{width:12px;height:12px;border-radius:50%}.terminal-dot.red{background-color:#ef4444}.terminal-dot.yellow{background-color:#eab308}.terminal-dot.green{background-color:#22c55e}.terminal-title{color:#cbd5e1;font-size:13px;font-family:Monaco,Menlo,Ubuntu Mono,monospace}.terminal-content{flex:1;padding:16px;overflow-y:auto;background-color:#0f172a}.terminal-line{margin-bottom:4px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:13px;line-height:1.4}.terminal-line.input{color:#e2e8f0}.terminal-line.output{color:#cbd5e1}.terminal-line.error{color:#fca5a5}.input-line{display:flex;align-items:center;gap:4px}.terminal-prompt{color:#22c55e;font-weight:500;font-family:Monaco,Menlo,Ubuntu Mono,monospace;flex-shrink:0}.terminal-input{background:transparent;border:none;outline:none;color:#e2e8f0;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:13px;flex:1;caret-color:#22c55e}.terminal-cursor{color:#22c55e;animation:blink 1s infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.task-list{max-height:300px;overflow-y:auto}.pl-root{display:flex;flex-direction:column;height:100vh;width:100%;background:var(--dc-bg);position:relative;overflow:hidden}.pl-progress-track{height:3px;background:var(--dc-border);flex-shrink:0}.pl-progress-fill{height:100%;background:var(--dc-primary);transition:width .5s ease;border-radius:0 2px 2px 0}.pl-header{display:flex;align-items:center;gap:10px;padding:6px 12px;background:var(--dc-surface);border-bottom:1px solid var(--dc-border);flex-shrink:0;min-height:36px}.pl-sidebar-toggle{background:none;border:1px solid var(--dc-border);border-radius:4px;color:var(--dc-text-dim);padding:4px 6px;cursor:pointer;display:flex;align-items:center;transition:border-color .2s,color .2s}.pl-sidebar-toggle:hover{border-color:var(--dc-primary-dim);color:var(--dc-primary)}.pl-header-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.pl-step-label{font-size:11px;font-weight:700;color:var(--dc-primary);background:var(--dc-primary-10);padding:2px 8px;border-radius:99px;white-space:nowrap;font-variant-numeric:tabular-nums}.pl-step-sep{opacity:.5;margin:0 1px}.pl-header-title{font-size:13px;font-weight:600;color:var(--dc-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pl-header-right{display:flex;align-items:center;gap:6px;flex-shrink:0}.pl-diff{font-size:10px;font-weight:600;padding:2px 8px;border-radius:99px;text-transform:uppercase;letter-spacing:.5px}.pl-diff-easy{background:rgba(16,185,129,.15);color:#10b981}.pl-diff-medium{background:rgba(245,158,11,.15);color:#f59e0b}.pl-diff-hard{background:rgba(239,68,68,.15);color:#ef4444}.pl-body{flex:1;display:flex;position:relative;overflow:hidden}.pl-sidebar-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.5);z-index:40;animation:pl-fade .15s ease}.pl-sidebar{position:absolute;left:0;top:0;bottom:0;width:280px;max-width:85%;background:var(--dc-surface);border-right:1px solid var(--dc-border);z-index:50;display:flex;flex-direction:column;animation:pl-slide-in .2s ease;overflow:hidden}@keyframes pl-slide-in{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes pl-fade{0%{opacity:0}to{opacity:1}}.pl-sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--dc-border)}.pl-sidebar-head h3{font-size:13px;font-weight:700;color:var(--dc-text);margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pl-sidebar-close{background:none;border:none;color:var(--dc-text-dim);cursor:pointer;padding:4px;border-radius:4px;display:flex}.pl-sidebar-close:hover{background:var(--dc-primary-10);color:var(--dc-primary)}.pl-sidebar-list{list-style:none;margin:0;padding:8px 6px;overflow-y:auto;flex:1}.pl-sidebar-list li{margin:0}.pl-sidebar-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:none;border-radius:6px;background:transparent;cursor:pointer;text-align:left;transition:background .15s}.pl-sidebar-item:hover:not(:disabled){background:var(--dc-primary-10)}.pl-sidebar-num{width:20px;height:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.pl-sidebar-dot{width:8px;height:8px;border-radius:50%;background:var(--dc-primary);box-shadow:0 0 6px var(--dc-primary-35)}.pl-sidebar-title{flex:1;font-size:12px;font-weight:500;color:var(--dc-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pl-sidebar-lang{font-size:10px;color:var(--dc-text-muted);text-transform:lowercase;flex-shrink:0}.pl-sidebar-completed .pl-sidebar-title{color:var(--dc-primary-dim)}.pl-sidebar-locked .pl-sidebar-title{color:var(--dc-text-muted)}.pl-sidebar-locked{cursor:not-allowed;opacity:.5}.pl-sidebar-current{background:var(--dc-primary-10);border-left:3px solid var(--dc-primary);padding-left:7px}.pl-capsule-area{flex:1;display:flex;flex-direction:column;min-width:0;transition:opacity .2s ease}.pl-fade-in{opacity:1}.pl-fade-out{opacity:0}.pl-capsule-area>.devcapsules-embed,.pl-capsule-area>.capsule-embed-root,.pl-capsule-area>div{flex:1;display:flex;flex-direction:column}.pl-next-bar{position:absolute;bottom:0;left:0;right:0;z-index:30;padding:0 12px 12px}.pl-next-bar-enter{animation:pl-slide-up .35s cubic-bezier(.22,.61,.36,1)}@keyframes pl-slide-up{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.pl-next-inner{display:flex;align-items:center;gap:10px;background:var(--dc-surface);border:1px solid var(--dc-primary-35);border-radius:10px;padding:10px 16px;box-shadow:0 -4px 24px #00ff871a,0 2px 8px #0006}.pl-next-check{width:28px;height:28px;border-radius:50%;background:var(--dc-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}.pl-next-text{flex:1;font-size:13px;font-weight:600;color:var(--dc-text)}.pl-next-btn{display:flex;align-items:center;gap:6px;padding:8px 18px;background:var(--dc-primary);color:var(--dc-bg);border:none;border-radius:6px;font-size:13px;font-weight:700;cursor:pointer;transition:background .15s,transform .1s;white-space:nowrap}.pl-next-btn:hover{background:var(--dc-primary-hover);transform:translate(2px)}.pl-complete-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:60;display:flex;align-items:center;justify-content:center;background:rgba(4,4,10,.92);animation:pl-fade .4s ease}.pl-complete-card{text-align:center;padding:40px 32px;max-width:380px}.pl-complete-icon{margin-bottom:16px}.pl-complete-card h2{font-size:24px;font-weight:800;color:var(--dc-primary);margin:0 0 8px}.pl-complete-card p{font-size:14px;color:var(--dc-text-dim);margin:0 0 24px;line-height:1.5}.pl-complete-stats{display:flex;justify-content:center;gap:32px}.pl-stat{text-align:center}.pl-stat-num{display:block;font-size:28px;font-weight:800;color:var(--dc-primary);font-variant-numeric:tabular-nums}.pl-stat-label{font-size:11px;color:var(--dc-text-muted);text-transform:uppercase;letter-spacing:.5px}.pl-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:12px;background:var(--dc-bg);color:var(--dc-text-dim);font-size:13px}.pl-spinner{width:28px;height:28px;border:3px solid var(--dc-border);border-top-color:var(--dc-primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pl-error{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:8px;background:var(--dc-bg);color:var(--dc-text-dim);font-size:13px}.pl-error-icon{width:36px;height:36px;border-radius:50%;background:rgba(239,68,68,.15);color:#ef4444;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}