:root{--bg: #0b0f14;--surface: #131a22;--surface-2: #1b242e;--border: #243040;--text: #e6edf3;--muted: #8b949e;--accent: #58a6ff;--green: #3fb950;--red: #f85149;--yellow: #d29922;--radius: 14px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.45}.app{max-width:520px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;padding-bottom:calc(72px + env(safe-area-inset-bottom))}.screen{padding:16px;padding-top:calc(16px + env(safe-area-inset-top));flex:1}h1{font-size:22px;margin:4px 0 16px}h2{font-size:17px;margin:20px 0 10px}.muted{color:var(--muted)}.small{font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:12px}.row{display:flex;align-items:center;gap:10px}.row.between{justify-content:space-between}.grow{flex:1}button{font:inherit;cursor:pointer;border:none;border-radius:10px;padding:12px 16px;background:var(--surface-2);color:var(--text);border:1px solid var(--border)}button.primary{background:var(--accent);color:#06121f;border-color:var(--accent);font-weight:600}button.green{background:var(--green);color:#052;border-color:var(--green);font-weight:700}button.ghost{background:transparent}button:disabled{opacity:.5}button.block{width:100%}input,select,textarea{font:inherit;width:100%;background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:12px}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}.tag{display:inline-block;font-size:12px;font-weight:600;padding:2px 8px;border-radius:99px;background:var(--surface-2)}.stat{text-align:center}.stat .num{font-size:30px;font-weight:700;font-variant-numeric:tabular-nums}.stat .lbl{font-size:12px;color:var(--muted)}.run-big{font-size:64px;font-weight:800;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:-2px;margin:8px 0}.run-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0}.pace-ok{color:var(--green)}.pace-fast{color:var(--red)}.pace-slow{color:var(--yellow)}.nav{position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:0 auto;display:flex;background:var(--surface);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.nav a{flex:1;text-align:center;padding:12px 4px;color:var(--muted);text-decoration:none;font-size:11px}.nav a.active{color:var(--accent)}.nav .ico{font-size:20px;display:block}.spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.bar{height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden}.bar>span{display:block;height:100%;background:var(--accent)}