:root{--bg: #0d1117;--fg: #e6edf3;--muted: #8b949e;--card: #161b22;--border: #30363d;--up: #f85149;--down: #3fb950;--accent: #58a6ff;--cell-empty: #1c2129}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--fg);line-height:1.4}.app{max-width:820px;margin:0 auto;padding:1.5rem;display:grid;gap:1rem}header h1{margin:0 0 .1rem}header small{color:var(--muted)}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:1rem 1.25rem}.card.error{border-color:var(--up);color:var(--up)}.status h1{margin:0 0 .2rem;font-size:1.6rem}.status.up h1{color:var(--up)}.status.down h1{color:var(--down)}.status .since{color:var(--muted);margin-bottom:.8rem}.status dl{display:grid;grid-template-columns:max-content 1fr;gap:.25rem 1rem;margin:0}.status dt{color:var(--muted)}.status dd{margin:0}.next-open{border-left:3px solid var(--accent)}.next-open.overdue{border-left-color:var(--up)}.next-open.open{border-left-color:var(--down)}.next-open-label{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.next-open-value{font-size:1.5rem;font-weight:600;margin-top:.15rem}.next-open-value.muted{color:var(--muted);font-weight:400}.next-open-eta{color:var(--muted);font-size:1rem;font-weight:400}.next-open-sub{color:var(--muted);font-size:.8rem;margin-top:.15rem}.toolbar{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}.toggle{background:var(--card);border:1px solid var(--border);color:var(--fg);padding:.4rem .8rem;border-radius:999px;font-size:.85rem;cursor:pointer}.toggle.on{border-color:var(--accent);color:var(--accent)}.toolbar-hint{color:var(--muted);font-size:.85rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.75rem}.stat-card{background:#ffffff05;border:1px solid var(--border);border-radius:6px;padding:.6rem .75rem}.stat-label{color:var(--muted);font-size:.8rem}.stat-value{font-size:1.4rem;font-weight:600;margin-top:.1rem}.stat-sub{color:var(--muted);font-size:.75rem;margin-top:.15rem}.heatmap-wrap{width:100%;overflow-x:auto}.heatmap-svg{width:100%;min-width:600px;display:block}.heatmap-label{fill:var(--muted);font-size:9px;font-family:inherit}.bar-svg{width:100%;height:auto;display:block}.bar-label{fill:var(--muted);font-size:11px;font-family:inherit}.cycles{list-style:none;padding:0;margin:0}.cycles li{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;padding:.35rem 0;border-bottom:1px solid var(--border);font-size:.9rem}.cycles li:last-child{border-bottom:0}.cycles-when{color:var(--muted);min-width:7rem}.cycles-dur{font-variant-numeric:tabular-nums}.cycles-gap{color:var(--muted)}.history ul{list-style:none;padding:0;margin:0}.history li{display:flex;gap:.75rem;align-items:center;padding:.4rem 0;border-bottom:1px solid var(--border);font-size:.95rem}.history li:last-child{border-bottom:0}.history .ts{color:var(--muted);min-width:12rem}.pill{padding:.1rem .5rem;border-radius:999px;font-size:.8rem;font-weight:600}.pill.up{background:#f8514926;color:var(--up)}.pill.down{background:#3fb95026;color:var(--down)}.history .dur{color:var(--muted);font-size:.85rem}h2{margin:0 0 .6rem;font-size:1.05rem}