:root{--bg: #0b0d12;--bg-elev: #11141b;--bg-elev-2: #161a22;--border: #232834;--border-strong: #2e3442;--text: #e6e9ef;--text-muted: #8b93a4;--accent: #7c9cff;--accent-2: #5ddbb1;--accent-soft: rgba(124, 156, 255, .14);--row-stripe: rgba(255, 255, 255, .02);--row-round: rgba(124, 156, 255, .06);--shadow: 0 12px 32px rgba(0, 0, 0, .35);--radius: 14px;--radius-sm: 9px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-feature-settings:"tnum" 1,"cv11" 1}*{box-sizing:border-box}html,body{margin:0;padding:0;background:radial-gradient(1200px 600px at 20% -10%,rgba(124,156,255,.12),transparent 60%),radial-gradient(900px 500px at 110% 10%,rgba(93,219,177,.08),transparent 60%),var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.page{max-width:1400px;margin:0 auto;padding:40px 24px 96px}.topnav{position:sticky;top:0;z-index:10;background:#0b0d12b8;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.topnav-inner{max-width:1400px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.topnav-brand{display:inline-flex;align-items:center;gap:8px;color:var(--text);font-weight:600;font-size:15px;text-decoration:none;letter-spacing:-.01em}.topnav-brand-mark{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#0b0d12;font-size:13px;font-weight:700}.topnav-links{list-style:none;margin:0;padding:0;display:flex;gap:4px}.topnav-link{display:inline-block;padding:7px 13px;font-size:13px;font-weight:500;color:var(--text-muted);text-decoration:none;border-radius:999px;border:1px solid transparent;transition:background .12s ease,color .12s ease,border-color .12s ease}.topnav-link:hover{color:var(--text)}.topnav-link.active{background:var(--accent-soft);color:var(--text);border-color:#7c9cff73}@media(max-width:560px){.topnav-inner{padding:10px 16px;gap:12px}.topnav-brand{font-size:14px}.topnav-link{padding:6px 10px;font-size:12px}}.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}.page-title{margin:0;font-size:32px;font-weight:600;letter-spacing:-.02em}.page-title .accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.page-subtitle{margin:6px 0 0;color:var(--text-muted);font-size:15px}.pace-app{display:flex;flex-direction:column;gap:24px}.controls{display:grid;grid-template-columns:auto 1fr auto;align-items:start;gap:20px 32px;padding:20px 22px;background:linear-gradient(180deg,var(--bg-elev),var(--bg-elev-2));border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.control-group{display:flex;flex-direction:column;gap:10px;min-width:0}.control-group.reset-col{justify-self:end;align-items:flex-end}.control-label{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted)}.segmented{display:inline-flex;padding:4px;background:var(--bg);border:1px solid var(--border);border-radius:999px;gap:2px}.seg{appearance:none;border:0;background:transparent;color:var(--text-muted);padding:8px 16px;font-size:14px;font-weight:500;border-radius:999px;cursor:pointer;transition:background .12s ease,color .12s ease}.seg:hover{color:var(--text)}.seg.active{background:var(--accent-soft);color:var(--text);box-shadow:inset 0 0 0 1px #7c9cff66}.chip-row{display:flex;flex-wrap:wrap;gap:8px}.unit-row{display:flex;align-items:center;gap:10px}.icon-btn{appearance:none;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--bg);color:var(--text-muted);padding:7px 12px;border-radius:999px;cursor:pointer;font:inherit;font-size:13px;font-weight:500;transition:color .12s ease,border-color .12s ease,background .12s ease}.icon-btn:hover{color:var(--text);border-color:var(--border-strong);background:#7c9cff0f}.icon-btn:focus-visible{outline:none;border-color:#7c9cff99;box-shadow:0 0 0 3px var(--accent-soft)}.empty{padding:28px;text-align:center;color:var(--text-muted);margin:0}.modal{border:0;padding:0;background:transparent;color:var(--text);max-width:min(480px,calc(100vw - 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