*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #1a1a1a;--surface: #242424;--surface-hover: #2e2e2e;--border: #363636;--border-strong: #505050;--text: #f0f0f0;--text-muted: #909090;--accent: #e07348;--accent-hover: #c25e38;--accent-purple: #8b5cf6;--accent-a06: rgba(224,115,72,.06);--accent-a08: rgba(224,115,72,.08);--accent-a12: rgba(224,115,72,.12);--accent-a15: rgba(224,115,72,.15);--accent-a18: rgba(224,115,72,.18);--accent-a35: rgba(224,115,72,.35);--accent-a40: rgba(224,115,72,.4);--danger: #ff5555;--success: #4ec94e;--warn: #ffb347;--radius: 6px;--shadow: 0 2px 8px rgba(0,0,0,.5)}[data-theme=midnight]{--bg: #0d0f1a;--surface: #141827;--surface-hover: #1c2235;--border: #252a3f;--border-strong: #3a3f5c;--text: #e0e6f8;--text-muted: #7a88b0;--accent: #e07348;--accent-hover: #c25e38;--accent-purple: #a78bfa;--accent-a06: rgba(224,115,72,.06);--accent-a08: rgba(224,115,72,.08);--accent-a12: rgba(224,115,72,.12);--accent-a15: rgba(224,115,72,.15);--accent-a18: rgba(224,115,72,.18);--accent-a35: rgba(224,115,72,.35);--accent-a40: rgba(224,115,72,.4);--danger: #f0504f;--success: #3dbf5e;--warn: #f59e0b;--radius: 6px;--shadow: 0 2px 8px rgba(0,0,0,.6)}[data-theme=light]{--bg: #f2f3f5;--surface: #ffffff;--surface-hover: #fff4ef;--border: #dde2ed;--border-strong: #bdc4d8;--text: #1a1d2b;--text-muted: #5f6680;--accent: #c95928;--accent-hover: #a84520;--accent-purple: #7c3aed;--accent-a06: rgba(201,89,40,.06);--accent-a08: rgba(201,89,40,.08);--accent-a12: rgba(201,89,40,.12);--accent-a15: rgba(201,89,40,.15);--accent-a18: rgba(201,89,40,.18);--accent-a35: rgba(201,89,40,.35);--accent-a40: rgba(201,89,40,.4);--danger: #dc2626;--success: #16a34a;--warn: #d97706;--radius: 6px;--shadow: 0 1px 4px rgba(0,0,0,.1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;color:var(--text);background:var(--bg);line-height:1.5}button{cursor:pointer;font:inherit;border:none;background:none}input,select{font:inherit;color:var(--text)}pre{white-space:pre-wrap;font-family:inherit}.app{display:flex;flex-direction:column;height:100vh}.app-header{display:flex;align-items:center;gap:24px;padding:0 20px;height:52px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.app-logo{font-weight:800;font-size:29px;color:var(--accent-purple);letter-spacing:-.5px}.app-nav{display:flex;gap:4px;margin-left:8px}.nav-tab{padding:5px 12px;border-radius:var(--radius);color:var(--text-muted);font-weight:500;font-size:11px;transition:background .15s,color .15s}.nav-tab:hover{background:var(--bg);color:var(--text)}.nav-tab.active{background:var(--accent);color:#fff}.app-body{flex:1;overflow:hidden;display:flex}.btn-primary{background:var(--accent);color:#fff;padding:7px 16px;border-radius:var(--radius);font-weight:500;transition:background .15s}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.4;cursor:default}.btn-secondary{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:6px 14px;border-radius:var(--radius);font-weight:500}.btn-secondary:hover{border-color:var(--border-strong)}.btn-sm{padding:3px 10px;border-radius:4px;font-size:12px;background:var(--bg);border:1px solid var(--border);color:var(--text-muted)}.btn-sm:hover{border-color:var(--border-strong);color:var(--text)}.btn-danger{color:var(--danger)}.btn-icon{color:var(--text-muted);font-size:12px;padding:2px 6px}.btn-icon:hover{color:var(--text)}.chord-chart-layout{display:flex;width:100%;height:100%;overflow:hidden;flex-direction:column}.chord-chart-body{display:flex;flex:1;overflow:hidden}.chart-sidebar{width:200px;flex-shrink:0;border-right:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;gap:12px;padding:16px 12px;overflow-y:auto}.chart-list{display:flex;flex-direction:column;gap:4px}.chart-list-item{padding:8px 10px;border-radius:var(--radius);cursor:pointer;border:1px solid transparent;display:flex;flex-direction:column;gap:1px;position:relative}.chart-list-item:hover{background:var(--bg);border-color:var(--border)}.chart-list-item.active{background:var(--surface-hover);border-color:var(--accent)}.chart-list-title{font-weight:600;font-size:13px;color:var(--text)}.chart-list-artist{font-size:11px;color:var(--text-muted)}.chart-list-item .btn-icon{position:absolute;top:6px;right:6px}.sidebar-empty{font-size:12px;color:var(--text-muted)}.chart-editor{flex:1;overflow-y:auto;padding:24px 32px;display:flex;flex-direction:column;gap:24px}.chart-empty-state{margin:auto;text-align:center;color:var(--text-muted);display:flex;flex-direction:column;gap:16px;align-items:center}.chart-header{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-bottom:10px}.chart-meta-inputs{display:flex;flex-wrap:wrap;gap:6px;align-items:center;flex:1;min-width:0}.chart-controls-inline{display:flex;align-items:center;gap:6px;flex-shrink:0}.meta-input{padding:5px 8px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-size:13px}.meta-input:focus{outline:none;border-color:var(--accent)}.meta-title{font-size:15px;font-weight:700;width:160px}.meta-artist{width:130px}.meta-tempo{width:68px}.meta-bpr{width:54px}.meta-input-label{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--text-muted)}.playhead-btn{position:relative;width:110px;height:30px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:0 14px;display:flex;align-items:center;flex-shrink:0;transition:border-color .15s}.playhead-btn:hover{border-color:var(--border-strong)}.playhead-btn.playing{border-color:var(--accent)}.playhead-track{position:relative;width:100%;height:2px;background:var(--border-strong);border-radius:1px}.playhead-fill{position:absolute;left:0;top:0;height:100%;background:var(--accent);border-radius:1px}.playhead-circle{position:absolute;top:50%;transform:translate(-50%,-50%);width:10px;height:10px;background:var(--accent);border:2px solid var(--bg);border-radius:50%}.playhead-btn.playing .playhead-circle{box-shadow:0 0 0 2px #e0734859}.section-play-btn{color:var(--text-muted)}.section-play-btn.active{color:var(--accent);border-color:var(--accent)}.chart-meta-print{display:none}.print-title{font-size:22px;font-weight:700}.print-artist{font-size:13px;color:var(--text-muted)}.chart-topbar{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}.chart-topbar-gap{flex:1}.btn-gear{width:40px;height:40px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:22px;border:1px solid transparent;transition:all .15s}.btn-gear:hover{background:var(--bg);border-color:var(--border);color:var(--text)}.btn-gear.active{background:var(--bg);border-color:var(--accent);color:var(--accent)}.settings-panel{position:absolute;top:40px;right:12px;z-index:200;background:var(--surface);border:1px solid var(--border-strong);border-radius:10px;padding:16px;min-width:260px;box-shadow:0 8px 32px #00000080;display:flex;flex-direction:column;gap:16px}.settings-panel h4{font-size:13px;font-weight:700;color:var(--text)}.settings-group{display:flex;flex-direction:column;gap:6px}.settings-label{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}.settings-options{display:flex;gap:6px;flex-wrap:wrap}.settings-opt{padding:5px 12px;border-radius:20px;font-size:12px;font-weight:500;border:1px solid var(--border);color:var(--text-muted);cursor:pointer;transition:all .15s;background:var(--bg)}.settings-opt:hover{border-color:var(--accent);color:var(--accent)}.settings-opt.active{background:var(--accent);color:#fff;border-color:var(--accent)}.settings-toggle{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text);cursor:pointer}.settings-toggle input{cursor:pointer}.section{display:flex;flex-direction:column;gap:2px}.section-drag-handle{cursor:grab;color:var(--text-muted);font-size:14px;padding:0 2px;-webkit-user-select:none;user-select:none;line-height:1}.section-drag-handle:active{cursor:grabbing}.section-wrapper{position:relative}.section-wrapper.drag-over:before{content:"";position:absolute;top:-3px;left:0;right:0;height:3px;background:var(--accent);border-radius:2px;z-index:10;pointer-events:none}.bar-drag-over{position:relative}.bar-drag-over:before{content:"";position:absolute;left:-2px;top:0;bottom:0;width:3px;background:var(--accent-purple);border-radius:2px;z-index:10;pointer-events:none}.bar-row-end-drop{width:8px;position:relative}.bar-row-end-drop.bar-drag-over:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-purple);border-radius:2px;z-index:10;pointer-events:none}.section-drop-end{height:24px;position:relative}.section-drop-end.drag-over:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);border-radius:2px;z-index:10;pointer-events:none}.section-header{display:flex;align-items:center;gap:4px;padding:4px 0}.section-label-input{font-weight:700;font-size:13px;min-width:6ch;max-width:40ch;border:1px solid transparent;border-radius:4px;padding:2px 6px;background:transparent;color:var(--text)}.section-label-input:hover{border-color:var(--border)}.section-label-input:focus{outline:none;border-color:var(--accent);background:var(--surface)}.section-key-select{font-size:11px;padding:2px 6px;border-radius:4px;border:1px solid var(--border);background:var(--surface);color:var(--text-muted)}.section-key-select:focus{outline:none;border-color:var(--accent);color:var(--text)}.section-label-print{display:none;font-weight:700;font-size:12px;margin-bottom:2px}.repeat-toggle{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:3px}.bar-row{display:grid;gap:0;border-top:2px solid var(--border-strong)}.bar-cell{min-height:64px;border-right:1px solid var(--border-strong);border-bottom:1px solid var(--border-strong);padding:6px 8px;cursor:text;background:var(--surface);transition:background .1s;-webkit-user-select:none;user-select:none;position:relative;display:flex;flex-direction:column;gap:2px;justify-content:center}.bar-cell:last-child{border-right:2px solid var(--border-strong)}.bar-cell:hover{background:var(--surface-hover)}.bar-selected{background:var(--accent-a18)!important;outline:2px solid var(--accent);outline-offset:-2px}.bar-input{width:100%;border:none;background:transparent;outline:none;font-size:16px;font-weight:700;color:var(--text)}.bar-display{display:flex;align-items:flex-start;flex-wrap:wrap;gap:2px}.chord-symbol{font-size:16px;font-weight:700;letter-spacing:-.3px;color:var(--text);display:inline-flex;align-items:baseline;gap:0}.chord-root,.chord-quality{font-size:inherit;font-weight:inherit;color:inherit}.bar-roman-row{display:flex;gap:4px;flex-wrap:wrap}.roman-symbol{font-size:11px;font-weight:600;letter-spacing:.2px;line-height:1;padding:1px 4px;border-radius:3px;opacity:.9}.bar-empty{color:var(--border-strong);font-size:13px}.bar-repeat{font-size:18px;color:var(--text-muted);font-style:italic;-webkit-user-select:none;user-select:none}.repeat-end-marker{text-align:right;font-weight:800;font-size:15px;padding:4px 8px 4px 0;color:var(--accent);letter-spacing:.5px;border-top:2px solid var(--accent);margin-top:2px}.transpose-toolbar{display:flex;align-items:center;gap:8px;padding:6px 0}.transpose-label{font-size:12px;color:var(--accent);flex:1}.btn-transpose{background:var(--accent-a12);color:var(--accent);border:1px solid var(--accent-a40);border-radius:5px;padding:4px 10px;font-size:13px;font-weight:700;cursor:pointer;transition:background .15s}.btn-transpose:hover{background:var(--accent);color:#fff}.sticky-panels{position:sticky;top:0;z-index:30;background:var(--bg);border-bottom:1px solid var(--border)}.transport-bar{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}.transport-time{font-size:11px;color:var(--text-muted);font-variant-numeric:tabular-nums;flex-shrink:0}.transport-track{position:relative;flex:1;height:4px;background:var(--border-strong);border-radius:2px;cursor:pointer;margin-top:16px}.transport-track:hover{background:var(--border-strong);opacity:.9}.transport-fill{position:absolute;left:0;top:0;height:100%;background:var(--accent);border-radius:2px;pointer-events:none}.transport-circle{position:absolute;top:50%;transform:translate(-50%,-50%);width:12px;height:12px;background:var(--accent);border:2px solid var(--bg);border-radius:50%;pointer-events:none;box-shadow:0 0 0 2px #e073484d}.transport-section-marker{position:absolute;top:-18px;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;cursor:pointer;z-index:2}.transport-section-marker:after{content:"";display:block;width:1px;height:18px;background:var(--border-strong);margin-top:2px}.transport-section-marker:hover:after{background:var(--accent)}.transport-section-label{font-size:9px;color:var(--text-muted);white-space:nowrap;line-height:1}.transport-section-marker:hover .transport-section-label{color:var(--accent)}.bar-playing{outline:2px solid var(--accent)!important;outline-offset:-2px}.chart-bottom-controls{display:flex;gap:8px;padding-top:4px;align-items:center}.chart-controls{display:flex;gap:10px;padding-top:8px;align-items:center}.btn-loop{background:transparent;border:1px solid var(--border-strong);color:var(--text-muted);border-radius:6px;padding:5px 10px;font-size:15px;cursor:pointer;transition:all .15s;line-height:1}.btn-loop:hover{border-color:var(--warn);color:var(--warn)}.btn-loop.active{background:#ffb34726;border-color:var(--warn);color:var(--warn)}.practice-timer{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--surface);border-top:1px solid var(--border);flex-shrink:0}.timer-duration-select{font-size:12px;padding:3px 8px;border-radius:4px;border:1px solid var(--border);background:var(--bg);color:var(--text)}.timer-elapsed{font-family:SF Mono,Fira Code,monospace;font-size:16px;font-weight:700;color:var(--accent);letter-spacing:2px;min-width:52px}.timer-elapsed.urgent{color:var(--danger)}.btn-timer{padding:4px 14px;border-radius:5px;font-size:12px;font-weight:600;border:1px solid var(--border);color:var(--text-muted);transition:all .15s}.btn-timer:hover{border-color:var(--accent);color:var(--accent)}.btn-timer.running{background:#ff55551a;border-color:var(--danger);color:var(--danger)}.tally-bar{display:flex;align-items:center;gap:10px;padding:6px 16px;background:var(--surface);border-top:1px solid var(--border);flex-shrink:0;min-height:36px}.tally-bar-label{font-size:11px;color:var(--text-muted);white-space:nowrap}.tally-marks-row{display:flex;gap:6px;flex-wrap:nowrap;overflow-x:auto;flex:1}.tally-group-h{display:flex;align-items:flex-end;gap:1px;height:18px}.tally-stick{display:inline-block;width:2px;height:14px;background:var(--text-muted);border-radius:1px;flex-shrink:0}.tally-stick-5{transform:rotate(-68deg) translateY(3px);transform-origin:bottom center;width:16px;height:2px;margin-left:-8px;margin-right:2px;background:var(--text-muted)}.tally-total{font-size:11px;color:var(--text-muted);white-space:nowrap}.row-editor{display:flex;flex-direction:column;gap:4px;margin-bottom:6px;position:relative}.row-bars{display:grid;gap:4px}.row-controls{display:flex;align-items:center;gap:4px;padding:2px 0}.row-repeat-pill{padding:2px 8px;border-radius:12px;border:1px solid var(--border-strong);font-size:11px;font-weight:600;color:var(--text-muted);background:var(--bg);cursor:pointer;transition:all .15s;-webkit-user-select:none;user-select:none}.row-repeat-pill:hover{border-color:var(--accent);color:var(--accent)}.row-repeat-pill.active{background:var(--accent);border-color:var(--accent);color:#fff}.context-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100}.context-menu{position:fixed;z-index:101;background:var(--surface);border:1px solid var(--border-strong);border-radius:8px;padding:4px;min-width:180px;box-shadow:0 8px 24px #00000080;display:flex;flex-direction:column;gap:2px}.context-menu button{background:none;border:none;color:var(--text);text-align:left;padding:7px 12px;border-radius:5px;font-size:13px;cursor:pointer}.context-menu button:hover{background:var(--surface-hover)}.context-menu .context-danger{color:var(--danger)}.flashcard-layout{display:flex;width:100%;height:100%;overflow:hidden}.fc-sidebar{width:240px;flex-shrink:0;border-right:1px solid var(--border);background:var(--surface);overflow-y:auto;padding:16px 12px;display:flex;flex-direction:column;gap:8px}.fc-sidebar h3{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:0 4px}.fc-filter-section{display:flex;flex-direction:column;gap:4px}.fc-filter-label{font-size:11px;color:var(--text-muted);padding:0 4px}.fc-filter-pills{display:flex;flex-wrap:wrap;gap:4px}.pill{padding:3px 10px;border-radius:20px;font-size:12px;border:1px solid var(--border);color:var(--text-muted)}.pill:hover{border-color:var(--accent);color:var(--accent)}.pill.active{background:var(--accent);color:#fff;border-color:var(--accent)}.fc-category{display:flex;flex-direction:column;gap:2px}.fc-cat-btn{width:100%;text-align:left;padding:7px 10px;border-radius:var(--radius);font-weight:600;font-size:13px;display:flex;justify-content:space-between;align-items:center;color:var(--text)}.fc-cat-btn:hover{background:var(--bg)}.fc-cat-btn.active{background:var(--accent-a15);color:var(--accent)}.fc-count{font-size:11px;color:var(--text-muted);font-weight:400}.fc-topic-btn{width:100%;text-align:left;padding:5px 10px 5px 20px;border-radius:var(--radius);font-size:12px;display:flex;justify-content:space-between;align-items:center;gap:8px;color:var(--text-muted)}.fc-topic-btn:hover{background:var(--bg);color:var(--text)}.fc-topic-btn.active{background:var(--accent-a15);color:var(--accent)}.fc-topic-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mastery-badge{font-size:10px;font-weight:600;padding:2px 6px;border-radius:10px;color:#fff;flex-shrink:0}.fc-main{flex:1;overflow-y:auto;padding:24px 32px;display:flex;flex-direction:column;gap:20px}.fc-header{display:flex;justify-content:space-between;align-items:flex-start}.fc-header h2{font-size:18px;font-weight:700}.fc-header p{font-size:13px;color:var(--text-muted)}.fc-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}.fc-card-preview{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:8px}.fc-card-meta{display:flex;justify-content:space-between;align-items:center;gap:8px}.fc-card-topic{font-size:11px;font-weight:600;color:var(--text-muted)}.fc-card-front{font-size:13px;color:var(--text);line-height:1.5}.fc-card-footer{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-muted)}.fc-card-domain{background:var(--accent-a15);color:var(--accent);border-radius:4px;padding:1px 5px;font-size:10px;font-weight:600;letter-spacing:.3px}.card-runner{max-width:680px;margin:0 auto;padding:32px 20px;display:flex;flex-direction:column;gap:20px;width:100%}.card-progress{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-muted)}.card-progress-dots{display:flex;gap:4px}.progress-dot{width:8px;height:8px;border-radius:50%;background:var(--border)}.progress-dot.done{background:var(--success)}.progress-dot.current{background:var(--accent)}.runner-header{display:flex;justify-content:space-between;align-items:flex-start;width:100%;gap:12px}.runner-centre{display:flex;flex-direction:column;align-items:center;gap:8px;flex:1}.card-progress-text{font-size:12px;color:var(--text-muted)}.timer-block{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:90px}.timer-label-small{font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}.timer-digits{font-size:2.4rem;font-weight:700;font-family:SF Mono,Fira Code,monospace;letter-spacing:3px;line-height:1}.timer-digits-session{color:var(--accent)}.timer-digits-question{color:var(--warn)}.timer-digits-urgent{color:var(--danger);animation:pulse-red .5s ease-in-out infinite alternate}@keyframes pulse-red{0%{opacity:1}to{opacity:.55}}.tally-container{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;margin-top:2px}.tally-group{display:flex;align-items:flex-end;gap:2px;height:20px}.tally-mark{display:inline-block;width:3px;height:16px;background:var(--text-muted);border-radius:1px;flex-shrink:0}.tally-mark-5{transform:rotate(-68deg) translateY(3px);transform-origin:bottom center;width:18px;height:3px;margin-left:-10px;margin-right:2px}.flashcard{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:28px;min-height:200px;cursor:pointer;box-shadow:var(--shadow);transition:box-shadow .2s;display:flex;flex-direction:column;gap:16px}.flashcard:hover{box-shadow:0 4px 12px #0003}.flashcard.flipped{cursor:default}.card-face{display:flex;flex-direction:column;gap:10px}.card-category-tag{font-size:11px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.06em}.card-text{font-size:15px;line-height:1.7;color:var(--text)}.card-hint{font-size:12px;color:var(--text-muted);margin-top:8px}.card-back{border-top:1px solid var(--border);padding-top:16px}.rating-buttons{display:flex;gap:10px}.btn-rating{flex:1;padding:12px;border-radius:8px;font-weight:600;font-size:14px;border:2px solid transparent;transition:all .15s}.btn-hard{background:#ef44441f;color:var(--danger);border-color:#ef444459}.btn-hard:hover{background:var(--danger);color:#fff}.btn-good{background:var(--accent-a12);color:var(--accent);border-color:var(--accent-a35)}.btn-good:hover{background:var(--accent);color:#fff}.btn-easy{background:#4ec94e1f;color:var(--success);border-color:#4ec94e59}.btn-easy:hover{background:var(--success);color:#fff}.btn-flag{flex:0 0 auto;background:none;color:var(--text-muted);border-color:var(--border);font-size:12px;padding:12px 14px}.btn-flag:hover{background:#ef44441f;color:var(--danger);border-color:#ef444459}.btn-flag-nav{font-size:11px;font-weight:600;padding:3px 8px;border-radius:12px;border:1px solid rgba(239,68,68,.4);background:#ef44441f;color:var(--danger);cursor:pointer}.btn-flag-nav:hover{background:var(--danger);color:#fff}.flagged-panel{max-width:680px;margin:32px auto;padding:24px;background:var(--surface);border-radius:12px;border:1px solid var(--border);display:flex;flex-direction:column;gap:16px}.flagged-panel-header{display:flex;align-items:center;justify-content:space-between}.flagged-panel-header h3{font-size:16px;font-weight:700}.flagged-count{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:var(--danger);color:#fff;font-size:11px;font-weight:700;margin-left:6px}.flagged-empty{color:var(--text-muted);font-size:13px}.flagged-list{display:flex;flex-direction:column;gap:8px}.flagged-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;background:var(--bg);border:1px solid var(--border)}.flagged-row-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.flagged-topic{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.flagged-front{font-size:13px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-summary{max-width:560px;margin:40px auto;padding:32px;background:var(--surface);border-radius:12px;border:1px solid var(--border);display:flex;flex-direction:column;gap:24px;align-items:center;text-align:center}.session-summary h2{font-size:22px}.summary-stats{display:flex;gap:32px}.summary-stat{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:13px;font-weight:600}.summary-stat span{font-size:32px;font-weight:700}.summary-cards{width:100%;display:flex;flex-direction:column;gap:6px}.summary-card-row{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:var(--bg);border-radius:6px;font-size:13px}.summary-topic{flex:1;text-align:left;font-weight:500}.summary-rating{font-weight:700;text-transform:capitalize;width:60px;text-align:center}.summary-time{color:var(--text-muted);width:40px;text-align:right}.mastery-layout{display:grid;grid-template-columns:1fr 280px;gap:0}.mastery-main{padding:24px 28px;border-right:1px solid var(--border)}.mastery-sidebar{padding:24px 16px;background:var(--surface)}.mastery-sidebar h3{font-size:13px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}.mastery-header{margin-bottom:24px}.mastery-header h2{font-size:20px;font-weight:700;margin-bottom:4px}.mastery-subheader{font-size:13px;color:var(--text-muted)}.elo-leaderboard{display:flex;flex-direction:column;gap:10px}.elo-row{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:10px}.elo-rank{font-size:12px;font-weight:700;color:var(--text-muted);width:24px;text-align:right;flex-shrink:0}.elo-row-info{flex:1;min-width:0}.elo-category-name{font-size:15px;font-weight:600}.elo-stage-label{font-size:12px;font-weight:600;padding:2px 8px;border-radius:12px;background:#ffffff14}.elo-row-stats{display:flex;flex-direction:column;align-items:flex-end;gap:2px;flex-shrink:0}.elo-pts{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums}.elo-pts-label{font-size:10px;color:var(--text-muted);margin-top:-4px}.elo-review-count{font-size:11px;color:var(--text-muted)}.elo-progress-bar{height:4px;border-radius:2px}.elo-feed{display:flex;flex-direction:column;gap:6px}.elo-feed-row{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:6px;padding:6px 8px;border-radius:6px;background:var(--bg);font-size:12px}.elo-feed-cat{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.elo-feed-rating{font-weight:600;text-transform:capitalize}.elo-feed-pts{font-weight:700;font-variant-numeric:tabular-nums}.elo-feed-time{color:var(--text-muted);white-space:nowrap}.elo-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:20px;color:var(--text-muted);font-size:13px;text-align:center}.elo-empty-hero{padding:60px 20px;border:1px dashed var(--border-strong);border-radius:12px;margin-bottom:24px}.elo-empty-hero h3{font-size:18px;color:var(--text);margin:8px 0 4px}@media (max-width: 700px){.mastery-layout{grid-template-columns:1fr}.mastery-sidebar{border-top:1px solid var(--border);border-right:none}}.claude-dev-layout{display:grid;grid-template-columns:200px 1fr;height:100%;overflow:hidden}.claude-sidebar{padding:20px 16px;border-right:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;gap:16px;overflow-y:auto}.claude-sidebar h3{font-size:13px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}.claude-nav{display:flex;flex-direction:column;gap:2px}.claude-nav-btn{text-align:left;padding:8px 10px;border-radius:var(--radius);font-size:13px;font-weight:500;color:var(--text-muted);width:100%;transition:background .15s,color .15s}.claude-nav-btn:hover{background:var(--bg);color:var(--text)}.claude-nav-btn.active{background:var(--accent);color:#fff}.claude-sidebar-links{display:flex;flex-direction:column;gap:4px;margin-top:auto}.claude-sidebar-label{font-size:11px;color:var(--text-muted);font-weight:600;margin-bottom:2px}.claude-link{font-size:12px;color:var(--accent);text-decoration:none;padding:2px 0}.claude-link:hover{text-decoration:underline}.claude-main{overflow-y:auto;padding:24px 32px}.claude-reference h2{font-size:18px;font-weight:700;margin-bottom:4px}.claude-reference-sub{color:var(--text-muted);font-size:13px;margin-bottom:24px}.claude-section{border:1px solid var(--border);border-radius:8px;margin-bottom:12px;overflow:hidden}.claude-section-header{display:flex;justify-content:space-between;align-items:center;width:100%;padding:12px 16px;background:var(--surface);font-weight:600;font-size:14px;text-align:left;border-bottom:1px solid var(--border)}.claude-section-header:hover{background:var(--bg)}.claude-section-chevron{color:var(--text-muted);font-size:12px}.claude-section-body{padding:4px 0}.claude-item{display:grid;grid-template-columns:160px 1fr;gap:12px;padding:10px 16px;font-size:13px;border-bottom:1px solid var(--border)}.claude-item:last-child{border-bottom:none}.claude-item-label{font-weight:600;color:var(--accent);font-family:monospace;font-size:12px;align-self:start;padding-top:1px}.claude-item-desc{color:var(--text);line-height:1.5}.claude-suggestions{display:flex;flex-direction:column;gap:20px}.claude-suggestions-header h3{font-size:18px;font-weight:700}.claude-suggestions-sub{font-size:13px;color:var(--text-muted);margin-top:4px}.claude-suggestion-list{display:flex;flex-direction:column;gap:10px}.claude-suggestion-row{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:8px;background:var(--surface);border:1px solid var(--border)}.claude-suggestion-body{flex:1;min-width:0}.claude-suggestion-text{font-size:13px;line-height:1.6;margin-bottom:4px}.claude-suggestion-source{font-size:11px;color:var(--text-muted)}.claude-suggestions-empty{color:var(--text-muted);font-size:13px;font-style:italic;padding:16px 0}.claude-suggestion-add{display:flex;gap:8px;align-items:center;padding-top:8px;border-top:1px solid var(--border)}.dash-root{flex:1;min-width:0;width:100%;padding:24px 32px;overflow-y:auto;height:100%;display:flex;flex-direction:column;gap:28px;box-sizing:border-box}.dash-header{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:12px}.dash-title{font-size:24px;font-weight:700;letter-spacing:-.3px}.dash-date{font-size:12px;color:var(--text-muted);margin-top:3px}.dash-header-right{display:flex;align-items:center;gap:12px}.dash-burn-total{display:flex;flex-direction:column;align-items:flex-end}.dash-burn-label{font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}.dash-burn-figure{font-size:13px;font-weight:700;color:var(--warn)}.dash-pill{font-size:11px;font-weight:700;padding:3px 10px;border-radius:12px}.dash-pill-green{background:#4ec94e26;color:var(--success);border:1px solid rgba(78,201,78,.3)}.dash-section{display:flex;flex-direction:column;gap:10px}.dash-section-title{font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;display:flex;align-items:center;gap:8px}.dash-done-badge{font-size:10px;font-weight:700;background:#4ec94e26;color:var(--success);border:1px solid rgba(78,201,78,.3);padding:1px 7px;border-radius:10px;text-transform:uppercase;letter-spacing:.06em}.dash-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}.dash-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px 16px;display:flex;flex-direction:column;gap:6px;min-width:0;position:relative}.dash-card-accent{border-color:var(--accent);background:var(--accent-a06)}.dash-card-done{opacity:.45}.dash-item-id-badge{font-size:10px;font-weight:700;font-family:var(--mono, monospace);color:var(--text-muted);background:#90909014;border:1px solid var(--border);padding:1px 6px;border-radius:4px;white-space:nowrap}.dash-item-id-inline{font-size:10px;font-weight:700;font-family:var(--mono, monospace);color:var(--text-muted);background:#90909014;border:1px solid var(--border);padding:0 5px;border-radius:3px;margin-left:6px;white-space:nowrap}.dash-card-text{font-size:14px;font-weight:600;color:var(--text);line-height:1.35}.dash-card-tag{font-size:11px;color:var(--text-muted);line-height:1.4}.dash-card-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:4px;flex-wrap:wrap}.dash-due{font-size:11px;font-weight:600}.dash-due-over{color:var(--danger)}.dash-due-today{color:var(--warn)}.dash-due-soon{color:var(--text-muted)}.dash-token-badge{font-size:10px;font-weight:700;font-family:var(--mono, monospace);color:var(--accent);background:var(--accent-a06);border:1px solid var(--accent-a20, rgba(224,115,72,.2));padding:1px 6px;border-radius:4px;white-space:nowrap}.dash-token-inline{font-size:10px;font-weight:700;font-family:var(--mono, monospace);color:var(--accent);background:var(--accent-a06);border:1px solid var(--accent-a20, rgba(224,115,72,.2));padding:0 5px;border-radius:3px;margin-left:6px;white-space:nowrap}.dash-phase-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}.dash-section-phase{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px 16px;min-width:0}.dash-section-done{opacity:.55;border-style:dashed}.dash-completed-section{border-color:#4ec94e33;background:#4ec94e08}.dash-completed-item{display:flex;align-items:center;gap:8px;font-size:12px;padding:4px 0;border-bottom:1px solid var(--border)}.dash-completed-item:last-child{border-bottom:none}.dash-completed-check{color:var(--success);font-size:11px;flex-shrink:0}.dash-completed-text{color:var(--text-muted);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dash-completed-lane{font-size:10px;color:var(--text-muted);opacity:.6;white-space:nowrap;flex-shrink:0}.dash-completed-date{font-size:10px;font-family:var(--mono, monospace);color:var(--text-muted);opacity:.55;white-space:nowrap;flex-shrink:0}.dash-item-list{display:flex;flex-direction:column;gap:7px;margin-top:10px}.dash-list-item{display:flex;gap:8px;align-items:flex-start;font-size:13px;min-width:0}.dash-list-item-done .dash-list-text{text-decoration:line-through;opacity:.6}.dash-list-dot{color:var(--text-muted);flex-shrink:0;padding-top:1px;font-size:11px}.dash-list-item-done .dash-list-dot{color:var(--success)}.dash-list-body{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px;min-width:0}.dash-list-text{color:var(--text);font-weight:500}.dash-list-tag{color:var(--text-muted);font-size:12px}.dash-due-inline{font-size:11px}.dash-due-inline.dash-due-over{color:var(--danger);font-weight:600}@media print{.no-print,.no-print-controls{display:none!important}.app-header,.chart-sidebar{display:none}.chord-chart-layout{display:block}.chart-editor{padding:0;gap:0;overflow:visible}body{background:#fff;font-size:12px;color:#000}.chart-meta-print{display:block;margin-bottom:10px}.print-title{font-size:18px;font-weight:900;color:#000}.print-artist{font-size:11px;color:#444;margin-top:1px}.section-label-print{display:inline-block;background:#000;color:#fff;font-weight:900;font-size:11px;padding:2px 7px;margin-bottom:3px;letter-spacing:.4px;border-radius:1px}.section{margin-bottom:10px}.section-wrapper{margin-bottom:0}.row-editor{margin-bottom:0;gap:0}.row-bars{gap:0}.bar-row-end-drop{display:none!important}.bar-cell{min-height:44px;border-top:1.5px solid #000;border-right:1px solid #555;border-bottom:none;padding:3px 6px;background:#fff;justify-content:flex-start}.bar-cell:first-child{border-left:2.5px solid #000}.bar-cell:last-child{border-right:2.5px solid #000}.chord-symbol{font-size:unset;color:#000;display:inline-flex;align-items:baseline;gap:0}.chord-root{font-size:18px;font-weight:800;color:#000;line-height:1.1}.chord-quality{font-size:9px;font-weight:700;vertical-align:super;line-height:0;color:#000;margin-left:.5px}.bar-roman-row{display:none!important}.bar-repeat{font-size:20px;color:#000}.bar-empty{color:#ccc}.bar-input{font-size:16px;font-weight:800;color:#000}.repeat-end-marker{color:#000;border-top-color:#000;font-size:11px;padding:2px 5px 2px 0}.chart-controls,.practice-timer,.tally-bar{display:none}}.pdf-export .no-print,.pdf-export .no-print-controls,.pdf-export .chart-sidebar,.pdf-export .chart-controls,.pdf-export .practice-timer,.pdf-export .tally-bar,.pdf-export .transpose-toolbar,.pdf-export .section-drag-handle{display:none!important}.pdf-export .chart-meta-print{display:block!important;margin-bottom:12px}.pdf-export .section-label-print,.pdf-export .chord-chart-body{display:block!important}.pdf-export .chart-editor{padding:16px!important;overflow:visible!important}.st-root{display:flex;flex-direction:column;min-height:400px;background:var(--bg);color:var(--text);position:relative}.st-tree-tabs{display:flex;gap:4px;padding:10px 20px 0;border-bottom:1px solid var(--border)}.st-tree-tab{background:none;border:1px solid transparent;border-bottom:none;color:var(--text-muted);padding:6px 16px;border-radius:4px 4px 0 0;cursor:pointer;font-size:12px;transition:color .15s,background .15s}.st-tree-tab:hover{color:var(--text);background:var(--surface)}.st-tree-tab.active{color:var(--accent);background:var(--surface);border-color:var(--border)}.st-header{display:flex;align-items:center;gap:24px;padding:14px 24px 12px;border-bottom:1px solid var(--border);flex-shrink:0;flex-wrap:wrap}.st-title{font-size:16px;font-weight:700;letter-spacing:.04em;color:var(--text)}.st-subtitle{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-muted);margin-top:2px}.st-stats{display:flex;gap:16px;margin-left:auto}.st-stat{display:flex;flex-direction:column;align-items:center;gap:2px}.st-stat-num{font-family:DM Mono,monospace;font-size:20px;font-weight:500;color:var(--col-color, var(--accent));line-height:1}.st-stat-total .st-stat-num{color:var(--accent)}.st-stat-lbl{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted)}.st-actions{display:flex;gap:8px}.st-btn{background:none;border:1px solid var(--border);color:var(--text-muted);padding:5px 12px;border-radius:var(--radius);cursor:pointer;font-size:11px;transition:all .15s}.st-btn:hover{border-color:var(--border-strong);color:var(--text)}.st-col-labels{position:relative;height:28px;flex-shrink:0;background:var(--bg);border-bottom:1px solid var(--border)}.st-col-label{position:absolute;transform:translate(-50%);font-size:9px;letter-spacing:.24em;text-transform:uppercase;color:var(--col-color, var(--text-muted));top:8px;opacity:.65}.st-scroll{flex:1;overflow:hidden;position:relative;cursor:grab}.st-scroll:active{cursor:grabbing}.st-canvas{position:relative}.st-svg{position:absolute;top:0;left:0;pointer-events:none;overflow:visible}.st-conn{fill:none;stroke:var(--border);stroke-width:1.5;transition:stroke .2s}.st-conn-lit{stroke:var(--conn-color, var(--accent));stroke-width:2;filter:drop-shadow(0 0 4px var(--conn-color, var(--accent)))}.st-node{position:absolute;transform:translate(-50%,-50%);border:1px solid var(--node-color, var(--border-strong));border-radius:var(--radius);padding:6px 12px;text-align:center;cursor:pointer;background:var(--surface);transition:box-shadow .2s,border-color .2s,background .15s;-webkit-user-select:none;user-select:none;min-width:80px}.st-node:hover{background:var(--surface-hover);box-shadow:0 0 12px color-mix(in srgb,var(--node-color) 40%,transparent)}.st-node.st-allocated{background:color-mix(in srgb,var(--node-color) 14%,var(--surface));border-color:var(--node-color);box-shadow:0 0 20px color-mix(in srgb,var(--node-color) 30%,transparent),inset 0 0 12px color-mix(in srgb,var(--node-color) 8%,transparent)}.st-node-atom{min-width:140px;padding:10px 20px;border-radius:50px}.st-node-minor{min-width:90px}.st-node-major{min-width:120px;padding:8px 16px}.st-node-keystone{min-width:160px;padding:12px 24px;border-radius:10px;border-width:2px}.st-node-label{font-size:11px;font-weight:600;letter-spacing:.03em;color:var(--text);white-space:nowrap}.st-node-sub{font-size:9px;color:var(--text-muted);margin-top:2px;white-space:nowrap}.st-allocated .st-node-label{color:var(--node-color)}.st-tooltip{position:fixed;z-index:1000;max-width:300px;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius);padding:14px 16px;pointer-events:none;box-shadow:var(--shadow)}.st-tt-tier{font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--text-muted);margin-bottom:5px}.st-tt-name{font-size:14px;font-weight:700;color:var(--accent);margin-bottom:8px}.st-tt-desc{font-size:12px;line-height:1.55;color:var(--text-muted)}.st-tt-prereqs{margin-top:10px;font-size:11px;color:var(--text-muted);border-top:1px solid var(--border);padding-top:8px}.st-tt-prereqs strong{color:var(--text-muted)}.strudel-panel{flex-shrink:0;border-top:1px solid var(--border);background:var(--bg)}.strudel-toggle{display:flex;align-items:center;gap:10px;padding:9px 16px;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .15s}.strudel-toggle:hover{background:var(--surface-hover)}.strudel-toggle-icon{font-size:9px;color:var(--text-muted);width:10px}.strudel-toggle-title{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-purple)}.strudel-toggle-sub{font-size:11px;color:var(--text-muted)}.strudel-hint{margin-left:auto;font-size:10px;color:var(--text-muted);font-style:italic}.strudel-sync-btn{margin-left:8px;padding:3px 10px;background:none;border:1px solid var(--border);border-radius:4px;color:var(--text-muted);font-size:11px;cursor:pointer;transition:all .15s}.strudel-sync-btn:hover{border-color:var(--accent-purple);color:var(--accent-purple)}.strudel-sync-btn-muted{opacity:.35;cursor:not-allowed}.strudel-free-active{border-color:var(--accent-purple)!important;color:var(--accent-purple)!important}.strudel-drum-presets{display:flex;align-items:center;gap:6px;padding:6px 16px;border-top:1px solid var(--border);flex-wrap:wrap;background:var(--surface)}.strudel-drum-label{font-size:10px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);margin-right:4px;flex-shrink:0}.strudel-drum-btn{padding:3px 10px;background:none;border:1px solid var(--border);border-radius:12px;color:var(--text-muted);font-size:11px;cursor:pointer;transition:all .15s;white-space:nowrap}.strudel-drum-btn:hover:not(:disabled){border-color:var(--accent-purple);color:var(--accent-purple)}.strudel-drum-btn-active{border-color:var(--accent-purple);color:var(--accent-purple);background:color-mix(in srgb,var(--accent-purple) 12%,transparent)}.strudel-drum-btn:disabled{opacity:.35;cursor:not-allowed}.strudel-editor-wrap{height:380px;overflow:hidden}.dash-done-btn{position:absolute;top:8px;right:8px;width:20px;height:20px;border-radius:50%;border:1.5px solid var(--border);background:transparent;color:var(--text-muted);font-size:10px;line-height:1;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .12s,background .12s,border-color .12s,color .12s}.dash-card:hover .dash-done-btn{opacity:1}.dash-done-btn:hover{background:var(--success);border-color:var(--success);color:#fff}.dash-done-btn-saving{opacity:1!important;border-color:var(--accent)!important;color:var(--accent)!important;background:transparent!important}.dash-list-done-btn{flex-shrink:0;margin-left:auto;width:16px;height:16px;border-radius:50%;border:1.5px solid var(--border);background:transparent;color:var(--text-muted);font-size:9px;line-height:1;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .12s,background .12s,border-color .12s,color .12s}.dash-list-item:hover .dash-list-done-btn{opacity:1}.dash-list-done-btn:hover{background:var(--success);border-color:var(--success);color:#fff}.strudel-editor-wrap strudel-editor{display:block;width:100%;height:100%}