:root,:root[data-theme=dark]{--bg: #0d1017;--bg-raised: #12161f;--surface: #161b26;--surface-2: #1c2230;--surface-3: #232b3b;--border: #2a3243;--border-strong: #3a445a;--text: #e8ecf3;--text-2: #a8b2c3;--text-3: #8d97ae;--accent: #4f8cf0;--accent-btn: #3a72d4;--accent-strong: #6da2ff;--accent-soft: rgba(79, 140, 240, .16);--success: #2ea06a;--success-text: #46bd85;--warning: #d99a2b;--warning-text: #d99a2b;--danger: #d4544e;--danger-text: #e4736d;--diff-add-text: #4cc48c;--danger-soft: rgba(212, 84, 78, .15);--focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent);--shadow: 0 8px 28px rgba(0, 0, 0, .45);--radius: 10px;--radius-sm: 7px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--fs-xs: .76rem;--fs-sm: .85rem;--fs-base: 1rem;--fs-lg: 1.12rem;--fs-h1: clamp(1.3rem, 1.1rem + .6vw, 1.45rem);--diagram-bg: #10141d;--chart-1: #4f8cf0;--chart-2: #cf7a1c;--chart-3: #1fa294;--chart-4: #a86ee8;--font: "Segoe UI", "Hiragino Kaku Gothic ProN", 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2px;font-size:1.05rem;font-weight:650;color:var(--text);overflow-wrap:anywhere}.first-run-langs{border:0;margin:0;padding:0;min-width:0;width:100%;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(150px,100%),1fr));gap:8px}.first-run-lang{display:flex;align-items:center;gap:10px;min-width:0;min-height:44px;padding:10px 12px;text-align:left;cursor:pointer;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius)}.first-run-lang:hover{border-color:var(--accent)}.first-run-lang.on{border-color:var(--accent);background:var(--accent-soft);outline:2px solid var(--accent);outline-offset:-2px}.first-run-lang:has(input:focus-visible){box-shadow:var(--focus-ring)}.first-run-lang input{flex:none;margin:0;accent-color:var(--accent)}.first-run-lang-text{display:flex;flex-direction:column;gap:2px;min-width:0}.first-run-lang-name{font-weight:600;line-height:1.25;overflow-wrap:anywhere}.first-run-lang-hint{font-size:.7rem;color:var(--text-3);line-height:1.2;overflow-wrap:anywhere}.first-run-continue{margin-top:6px;min-height:44px;padding-inline:28px}.first-run-note{margin:0;max-width:44ch;overflow-wrap:anywhere}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:16px}.stack{display:flex;flex-direction:column;gap:12px}.row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.spread{justify-content:space-between}.muted{color:var(--text-3)}.small{font-size:.82rem}.lead{color:var(--text-3);font-size:.9rem;margin:0 0 16px;max-width:72ch}.cov-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:14px;margin-top:16px}.cov-card{display:flex;flex-direction:column;gap:10px}.cov-metrics{display:flex;gap:22px;flex-wrap:wrap}.cov-metrics>div{display:flex;flex-direction:column}.cov-num{font-size:1.5rem;font-weight:650;line-height:1.1}.cov-label{font-size:.72rem;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em}.cov-missing{color:var(--text-2);word-break:break-word;margin:6px 0 0}.ds-jump{display:flex;flex-wrap:wrap;gap:6px 14px;margin:0 0 16px;padding-bottom:10px;border-bottom:1px solid var(--border);font-size:.82rem}.ds-jump a{color:var(--text-2);text-decoration:none;white-space:nowrap}.ds-jump a:hover{color:var(--accent);text-decoration:underline}[id^=ds-]{scroll-margin-top:76px}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.panel h2{display:flex;align-items:center;gap:8px;font-size:1rem;margin-bottom:12px}.stat-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.stat-card .stat-value{font-size:1.5rem;font-weight:700;line-height:1.2}.stat-card .stat-label{color:var(--text-3);font-size:.78rem}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text);border-radius:var(--radius-sm);padding:7px 13px;font-size:.88rem;font-family:inherit;cursor:pointer;transition:background .12s ease,border-color .12s ease}.btn:hover{background:var(--surface-3)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-btn);border-color:var(--accent-btn);color:#fff}.btn-primary:hover{background:var(--accent-strong)}.btn-ghost{background:transparent;border-color:transparent;color:var(--text-2)}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.btn-danger{background:var(--danger-soft);border-color:var(--danger);color:var(--danger-text)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-sm{padding:4px 9px;font-size:.8rem;min-height:24px}.btn-icon{padding:6px;min-width:24px;min-height:24px;justify-content:center}input[type=text],input[type=number],input[type=date],input[type=url],textarea,select{background:var(--bg);border:1px solid var(--border-strong);color:var(--text);border-radius:var(--radius-sm);padding:7px 10px;font-size:.9rem;font-family:inherit;max-width:100%}textarea{resize:vertical;min-height:64px}input[type=checkbox],input[type=radio]{accent-color:var(--accent);width:15px;height:15px}input[type=range]{accent-color:var(--accent)}input[type=color]{border:1px solid var(--border-strong);border-radius:6px;background:none;width:40px;height:28px;padding:1px}.field{display:flex;flex-direction:column;gap:4px}.field-label{font-size:.8rem;color:var(--text-2);font-weight:600}.field-required{color:var(--danger)}.field-hint{font-size:.75rem;color:var(--text-3)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.form-error{color:var(--danger);font-size:.82rem}.form-ok{color:var(--success);font-size:.82rem}.badge{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;font-weight:650;letter-spacing:.02em;padding:2px 8px;border-radius:999px;background:var(--surface-3);color:var(--text-2);border:1px solid var(--border)}.badge-accent{background:var(--accent-soft);color:var(--accent-strong);border-color:transparent}.badge-success{background:#2ea06a29;color:var(--success-text);border-color:transparent}.badge-warn{background:#d99a2b29;color:var(--warning-text);border-color:transparent}.badge-danger{background:var(--danger-soft);color:var(--danger-text);border-color:transparent}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-not-learned .status-dot{background:var(--text-3)}.status-learning .status-dot{background:var(--warning)}.status-learned .status-dot{background:var(--success)}.status-needs-review .status-dot{background:var(--danger)}.status-retired .status-dot{background:var(--border-strong)}.dialog{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);padding:0;max-width:min(560px,calc(100vw - 32px));width:100%;box-shadow:var(--shadow)}.dialog-wide{max-width:min(860px,calc(100vw - 32px))}.dialog::backdrop{background:#04060a99;backdrop-filter:blur(2px)}.dialog-inner{display:flex;flex-direction:column;max-height:84vh}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px 10px;border-bottom:1px solid var(--border)}.dialog-header h2{margin:0;font-size:1.02rem}.dialog-close{background:none;border:none;color:var(--text-3);font-size:1rem;cursor:pointer;padding:4px 8px}.dialog-close:hover{color:var(--text)}.dialog-body{padding:16px 18px;overflow-y:auto}.dialog-footer{padding:12px 18px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.toast-stack{position:fixed;bottom:18px;right:18px;display:flex;flex-direction:column;gap:8px;z-index:200}.toast{background:var(--surface-3);color:var(--text);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:10px 16px;font-size:.88rem;box-shadow:var(--shadow);animation:toast-in .18s ease}.toast-success{border-color:var(--success)}.toast-error{border-color:var(--danger)}@keyframes toast-in{0%{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}.empty-state{text-align:center;padding:46px 20px;color:var(--text-2)}.empty-state-icon{margin-bottom:8px;color:var(--text-3)}.empty-state p{color:var(--text-3);font-size:.86rem}.empty-state-action{margin-top:14px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.spinner-dot{display:inline-block;width:14px;height:14px;border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.cube-view{position:relative;width:100%;aspect-ratio:1.15;border-radius:var(--radius);overflow:hidden}.cube-view canvas{touch-action:none;max-width:100%}.cube-view-bg-default{background:radial-gradient(ellipse at 50% 38%,var(--surface-3),var(--bg) 78%)}.cube-view-bg-contrast{background:#000}:root[data-theme=light] 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var(--accent);outline-offset:2px}.viewer-workspace-bar{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:wrap}.viewer-workspace-identity{display:flex;flex-direction:column;min-width:0;flex:1}.viewer-workspace-title,.viewer-workspace-subtitle{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.viewer-workspace-subtitle{font-size:.78rem;color:var(--text-3, var(--text-2))}.viewer-workspace-actions{display:flex;align-items:center;gap:4px;flex-shrink:0}.viewer-workspace-body{min-width:0}.viewer-workspace[data-mode=expanded] .cube-view{aspect-ratio:auto;height:var(--viewer-height, 520px);min-height:0}.viewer-resize-handle{height:12px;flex-shrink:0;cursor:ns-resize;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);position:relative}.viewer-resize-handle:after{content:"";position:absolute;left:50%;top:50%;width:36px;height:2px;transform:translate(-50%,-50%);border-radius:2px;background:var(--text-3, 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