:root{--bg: #f6f7f9;--surface: #ffffff;--text: #1a1d21;--muted: #6b7280;--border: #e5e7eb;--accent: #2563eb;--accent-soft: #eff4ff;--good: #16a34a}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;min-height:100%;max-width:480px;margin:0 auto}.content{flex:1;padding:16px 16px 88px}.hdr{margin:8px 0 16px}.hdr__title{font-size:22px;font-weight:700}.hdr__sub{color:var(--muted);font-size:14px;margin-top:2px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px;margin-bottom:16px}.card--accent{background:var(--accent-soft);border-color:#dbe5ff}.card__kicker{font-size:12px;font-weight:600;letter-spacing:.03em;text-transform:uppercase;color:var(--accent)}.card__title{font-size:19px;margin:6px 0 8px}.card__body{color:var(--muted);font-size:15px;line-height:1.5;margin:0 0 14px}.chip{display:inline-block;background:#fff;border:1px solid var(--border);border-radius:999px;padding:4px 12px;font-size:13px;margin:0 0 14px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:12px;padding:12px 16px;font-size:15px;font-weight:600;cursor:pointer;flex:1}.btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn:disabled{opacity:.6}.field{margin-bottom:14px;flex:1}.field__label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin:8px 0 6px}.input{width:100%;border:1px solid var(--border);border-radius:12px;padding:12px;font-size:16px;background:#fff;color:var(--text)}.row{display:flex;gap:12px}.slider{width:100%}.pace{font-size:15px;color:var(--muted);margin:4px 0 12px}.seg{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.seg__btn{border:1px solid var(--border);background:#fff;border-radius:999px;padding:8px 14px;font-size:14px;cursor:pointer;color:var(--text)}.seg__btn--on{background:var(--accent);border-color:var(--accent);color:#fff}.syncline{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;color:var(--muted);margin-top:8px}.syncline__btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--accent);border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600;cursor:pointer}.note{background:#fffbe6;border:1px solid #f6e4a4;color:#6b5b00;border-radius:12px;padding:10px 12px;font-size:13px;margin:8px 0 0}.note--error{background:#fee2e2;border-color:#fca5a5;color:#991b1b}.list{list-style:none;padding:0;margin:0}.item{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin-bottom:10px}.item__main{display:flex;justify-content:space-between;font-weight:600}.item__type{text-transform:capitalize}.item__date{color:var(--muted);font-weight:500}.item__meta{color:var(--muted);font-size:14px;margin-top:2px}.item__notes{font-size:14px;margin-top:4px}.item__status{font-size:11px;font-weight:600;border-radius:999px;padding:2px 10px;text-transform:uppercase;letter-spacing:.04em}.item__status--done{background:#dcfce7;color:#166534}.item__status--missed{background:#fee2e2;color:#991b1b}.item__status--today{background:var(--accent-soft);color:var(--accent)}.item__status--upcoming{background:#f3f4f6;color:#4b5563}.item--today{border-color:var(--accent)}.muted{color:var(--muted);font-size:14px}.zones{width:100%;border-collapse:collapse;font-size:14px}.zones td{padding:8px 0;border-bottom:1px solid var(--border)}.zones tr:last-child td{border-bottom:none}.zones__bpm{text-align:right;font-weight:600;color:var(--accent)}.item__source{color:var(--muted);font-weight:400;text-transform:lowercase;font-size:12px}.splits{margin-top:8px;font-size:13px}.splits summary{cursor:pointer;color:var(--accent);font-weight:600}.splits__tbl{width:100%;margin-top:6px;border-collapse:collapse}.splits__tbl td{padding:4px 0;border-bottom:1px solid var(--border)}.splits__tbl tr:last-child td{border-bottom:none}.splits__pace{text-align:center;font-weight:600}.splits__hr{text-align:right;color:var(--muted)}.chart{width:100%;height:auto}.chart__line{stroke:var(--accent);stroke-width:2}.chart__dot{fill:var(--accent)}.chart__goal{stroke:var(--good);stroke-dasharray:4 4;stroke-width:1}.chart__goallabel{fill:var(--good);font-size:9px}.tabbar{position:fixed;bottom:0;left:0;right:0;max-width:480px;margin:0 auto;display:flex;background:var(--surface);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.tab{flex:1;border:none;background:none;padding:10px 0;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--muted);cursor:pointer}.tab--active{color:var(--accent)}.tab__icon{font-size:18px}.tab__label{font-size:11px}