:root{--bg: #0b0e14;--panel: #10141d;--panel-2: #161b26;--border: #232a38;--text: #d5dbe5;--text-dim: #7a8699;--text-faint: #4a5468;--green: #a7f070;--blue: #7aa2f7;--orange: #e0af68;--purple: #bb9af7;--red: #f7768e;--mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace}*{margin:0;padding:0;box-sizing:border-box}html,body,#app{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--mono);overflow:hidden}#app{display:grid;grid-template-columns:290px 1fr}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.logo{display:flex;align-items:center;gap:12px;padding:20px 18px 14px}.logo-glyph{font-size:26px;filter:drop-shadow(0 0 8px rgba(167,240,112,.5))}.logo-title{font-size:16px;font-weight:700;letter-spacing:3px;color:var(--green)}.logo-sub{font-size:11px;color:var(--text-dim);letter-spacing:1px}.progress-wrap{padding:0 18px 14px;border-bottom:1px solid var(--border)}.progress-bar{height:6px;background:var(--panel-2);border-radius:3px;overflow:hidden}.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--green),var(--blue));border-radius:3px;transition:width .4s ease}.progress-label{margin-top:6px;font-size:11px;color:var(--text-dim)}.level-list{flex:1;overflow-y:auto;padding:10px 10px 20px}.level-cat-header{font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--text-faint);padding:14px 8px 6px}.level-item{display:flex;align-items:center;gap:10px;width:100%;padding:7px 8px;background:none;border:none;border-radius:6px;color:var(--text-dim);font-family:var(--mono);font-size:13px;text-align:left;cursor:pointer}.level-item:hover{background:var(--panel-2);color:var(--text)}.level-item.active{background:var(--panel-2);color:var(--text);box-shadow:inset 2px 0 0 var(--green)}.level-item.done .level-item-status{color:var(--green)}.level-item-status{width:22px;flex-shrink:0;font-size:11px;color:var(--text-faint)}.level-item-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-area{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--border)}.user-area:empty{display:none}.user-signin{width:100%}.user-avatar{width:24px;height:24px;border-radius:50%;flex-shrink:0}.user-name{flex:1;font-size:12px;color:var(--text-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-signout{flex-shrink:0;font-size:11px;padding:3px 8px}.user-founder{flex-shrink:0;font-size:13px;cursor:default}.main{display:flex;flex-direction:column;min-width:0;height:100%;padding:22px 28px 0;gap:14px}.level-header .level-meta{display:flex;gap:12px;align-items:center;margin-bottom:4px}.level-num{font-size:11px;letter-spacing:2px;color:var(--text-faint)}.level-cat{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--purple);background:#bb9af71a;border:1px solid rgba(187,154,247,.25);padding:2px 8px;border-radius:10px}.level-title{font-size:22px;font-weight:700;color:var(--text)}.mission{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px 18px}.mission-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.mission-label{font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--orange)}.par-chip{font-size:11px;letter-spacing:1px;color:var(--green);background:#a7f07014;border:1px solid rgba(167,240,112,.3);padding:2px 10px;border-radius:10px}.par-chip.starred{color:var(--orange);background:#e0af681a;border-color:#e0af6866}.mission-text{font-size:14px;line-height:1.6}.hint-row{display:flex;gap:10px;margin-top:10px}.btn{font-family:var(--mono);font-size:12px;cursor:pointer;border-radius:6px;padding:5px 12px}.btn-ghost{background:none;border:1px solid var(--border);color:var(--text-dim)}.btn-ghost:hover{border-color:var(--text-dim);color:var(--text)}.btn.on{border-color:var(--orange);color:var(--orange);background:#e0af6814}.hint-text{margin-top:10px;padding:10px 12px;font-size:13px;line-height:1.6;color:var(--blue);background:#7aa2f712;border-left:2px solid var(--blue);border-radius:0 6px 6px 0}.hidden{display:none!important}.editor-wrap{position:relative;flex:1;min-height:0;background:var(--panel);border:1px solid var(--border);border-radius:10px 10px 0 0;overflow:hidden}.editor-host,.editor-host .cm-editor{height:100%}.editor-host .cm-editor.cm-focused{outline:none}.editor-host .cm-scroller{padding:10px 4px}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0b0e14d1;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:10}.overlay-card{text-align:center;padding:34px 46px;background:var(--panel-2);border:1px solid var(--green);border-radius:12px;box-shadow:0 0 40px #a7f07026;animation:pop .25s ease}@keyframes pop{0%{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}.overlay-check{font-size:40px;color:var(--green);line-height:1;margin-bottom:10px}.overlay-title{font-size:18px;font-weight:700;letter-spacing:1px;margin-bottom:14px}.overlay-belt{font-size:14px;color:var(--text);margin-bottom:8px}.overlay-score{font-size:12px;color:var(--text-dim);margin-bottom:14px}.overlay-keys{font-size:13px;color:var(--orange);background:#e0af6814;border:1px solid rgba(224,175,104,.25);border-radius:6px;padding:8px 14px;margin-bottom:16px}.overlay-keys:before{content:"solution: ";color:var(--text-dim)}.overlay-next{font-size:12px;color:var(--text-dim)}.overlay-next kbd{font-family:var(--mono);background:var(--bg);border:1px solid var(--border);border-bottom-width:2px;border-radius:4px;padding:2px 7px;color:var(--green)}.statusbar{display:flex;align-items:center;gap:14px;background:var(--panel-2);border:1px solid var(--border);border-top:none;border-radius:0 0 10px 10px;padding:6px 14px;margin-bottom:22px;font-size:12px}.mode-badge{font-weight:700;font-size:11px;letter-spacing:1.5px;padding:2px 10px;border-radius:4px;background:var(--blue);color:var(--bg)}.mode-badge[data-mode=insert]{background:var(--green)}.mode-badge[data-mode=visual]{background:var(--purple)}.mode-badge[data-mode=replace]{background:var(--red)}.status-flash{color:var(--orange)}.status-spacer{flex:1}.status-keys{color:var(--text-dim)}.status-keys.over-par{color:var(--orange)}.status-pending{color:var(--green);min-width:60px;text-align:right}.level-item.starred .level-item-status{color:var(--orange)}.status-pos{color:var(--text-dim)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-track{background:transparent}