:root{--bg-base: #000000;--bg-surface-1: #0a0a0a;--bg-surface-2: #111111;--bg-surface-glass: rgba(10, 10, 10, .6);--line: rgba(255, 255, 255, .1);--line-light: rgba(255, 255, 255, .15);--text: #ededed;--muted: #888888;--accent: #10b981;--accent-glow: rgba(16, 185, 129, .2);--accent-hover: #059669;--amber: #f59e0b;--green: #10b981;--red: #ef4444;--easy-bg: rgba(16, 185, 129, .1);--med-bg: rgba(245, 158, 11, .1);--hard-bg: rgba(239, 68, 68, .1);font-family:Inter,Geist Sans,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg-base);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg-base)}a{color:var(--text);text-decoration:none;transition:.2s}a:hover{color:var(--accent)}h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em}h1{font-size:1.8rem}h2{font-size:1.25rem}h3{font-size:1rem;color:var(--text)}p{margin:0;color:var(--muted)}button,input,select{font:inherit;border-radius:6px;border:1px solid var(--line);background:var(--bg-surface-2);color:var(--text);padding:.5rem 1rem;font-size:.875rem;transition:all .2s ease}button:hover:not(:disabled){background:#1a1a1a;border-color:var(--line-light)}button:active:not(:disabled){transform:scale(.98)}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:500}button.primary{background:var(--accent);color:#000;border-color:transparent;font-weight:600}button.primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 0 15px var(--accent-glow)}button.primary:disabled{opacity:.5;cursor:not-allowed}.shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.nav{border-right:1px solid var(--line);padding:1.5rem 1rem;background:var(--bg-surface-1);display:flex;flex-direction:column;gap:.25rem}.nav .brand{font-weight:700;font-size:1.25rem;letter-spacing:-.03em;margin-bottom:2rem;display:flex;align-items:center;gap:.5rem;padding-left:.5rem;color:#fff}.nav a{display:flex;align-items:center;gap:.75rem;color:var(--muted);padding:.5rem .75rem;border-radius:6px;font-size:.875rem;font-weight:500}.nav a.active,.nav a:hover{background:var(--bg-surface-2);color:var(--text)}.main{padding:2.5rem 3rem;max-width:1200px;margin:0 auto;width:100%}.page-header{margin-bottom:2rem}.page-header p{margin-top:.25rem;font-size:.875rem}.row{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}.grid{display:grid;gap:1.25rem}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.mono{font-family:JetBrains Mono,IBM Plex Mono,ui-monospace,monospace}.muted{color:var(--muted);font-size:.875rem}.flex-between{display:flex;justify-content:space-between;align-items:center}.card{background:var(--bg-surface-1);border:1px solid var(--line);border-radius:12px;padding:1.25rem 1.5rem;transition:border-color .2s ease}.card:hover{border-color:var(--line-light)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.card-header h3{margin:0;font-size:.875rem;font-weight:600;display:flex;align-items:center;gap:.5rem;color:var(--text)}.card-icon{color:var(--muted);font-size:1rem}.status-row{display:flex;justify-content:space-between;align-items:center;padding:.25rem 0;font-size:.875rem}.status-label{color:var(--muted)}.status-value{color:var(--text);font-weight:500}.status-value.ok{color:var(--green)}.status-value.bad{color:var(--red)}.status-indicator{width:8px;height:8px;border-radius:50%;display:inline-block}.status-indicator.ok{background:var(--green);box-shadow:0 0 8px var(--accent-glow)}.status-indicator.bad{background:var(--red)}.problem-card{margin-top:1.5rem}.problem-card h2{font-size:1.5rem;margin-bottom:.5rem}.problem-card .meta{display:flex;gap:1rem;font-size:.875rem;color:var(--muted);margin-bottom:1.5rem}.problem-card .desc{color:var(--muted);font-size:.95rem;line-height:1.6;margin-bottom:1.5rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.problem-actions{display:flex;gap:1rem;margin-top:1.5rem}.problem-actions button{flex:1;padding:.75rem}.pill{display:inline-flex;align-items:center;font-size:.75rem;font-weight:500;padding:.15rem .6rem;border-radius:999px;border:1px solid var(--line);color:var(--muted)}.pill.ok{color:var(--green);border-color:#10b98133;background:#10b9810d}.pill.bad{color:var(--red);border-color:#ef444433;background:#ef44440d}.pill.Easy{color:var(--green);background:var(--easy-bg);border-color:#10b98133}.pill.Medium{color:var(--amber);background:var(--med-bg);border-color:#f59e0b33}.pill.Hard{color:var(--red);background:var(--hard-bg);border-color:#ef444433}.heatmap-container{margin-top:1rem}.split{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;height:calc(100vh - 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