:root{--bg: #ffffff;--fg: #0f172a;--muted: #64748b;--border: #e2e8f0;--card: #fcfcfd;--primary: #ff6b00;--primary-700: #f06b00;--c-avgPace:#ff6b00;--c-maxPace:#ff9d3d;--c-avgHR:#e11d48;--c-maxHR:#fb7185;--c-avgPower:#0ea5e9;--c-maxPower:#38bdf8;--c-avgCad:#10b981;--c-maxCad:#34d399;--c-stride:#a855f7;--c-gct:#64748b;--c-vRatio:#f59e0b;--c-vOsc:#f97316}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans KR,Arial,sans-serif;background:var(--bg);color:var(--fg)}.header{border-bottom:1px solid var(--border);background:linear-gradient(90deg,#fff6ef,#fff 60%)}.nav{display:flex;align-items:center;gap:12px;padding:12px 16px;max-width:1140px;margin:0 auto}.brand-wrap{display:flex;align-items:baseline;gap:10px}.brand{font-weight:900;letter-spacing:.2px;color:var(--primary);font-size:28px;line-height:1}.brand-sub{font-weight:700;color:var(--fg);font-size:16px;line-height:1}.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}.lang-toggle{border:none;background:transparent;cursor:pointer;font-size:14px;color:var(--fg)}.lang-toggle.active{color:var(--primary);font-weight:700}.button{border:1px solid var(--border);background:#fff;color:var(--fg);border-radius:12px;padding:10px 14px;font-size:14px;cursor:pointer}.button.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.button.ghost{background:#fff;color:var(--primary);border-color:var(--primary)}.container{max-width:1140px;margin:0 auto;padding:16px}.notice{color:var(--muted);font-size:13px;margin:8px 16px 0}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:0 1px #0f172a05}.section-title{margin:0 0 12px;font-size:18px;font-weight:800;color:var(--fg)}.two-pane{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}@media (max-width: 979px){.two-pane{grid-template-columns:1fr}}.help{color:var(--muted);font-size:12px}.input,.select{border:1px solid var(--border);background:#fff;color:var(--fg);border-radius:12px;padding:12px 14px;font-size:15px;width:100%}.form-grid{display:grid;gap:12px}.form-grid.two{grid-template-columns:repeat(2,minmax(240px,1fr))}@media (max-width:700px){.form-grid.two{grid-template-columns:1fr}}.form-grid.auto{grid-template-columns:repeat(2,minmax(240px,1fr))}@media (max-width:700px){.form-grid.auto{grid-template-columns:1fr}}.table-wrap{width:100%;overflow-x:auto}.table{width:100%;border-collapse:collapse;min-width:960px}.table th,.table td{border-bottom:1px solid var(--border);padding:8px;font-size:12px;text-align:left;vertical-align:top}.table th{font-size:13px;line-height:1.15;white-space:normal;word-break:keep-all}.table td.num{text-align:right}.metric-nav{display:grid;gap:10px 12px;grid-template-columns:repeat(2,minmax(0,1fr));margin:8px 0 12px}@media (min-width: 900px){.metric-nav{grid-template-columns:repeat(4,minmax(0,1fr))}}.metric-btn{width:100%;display:inline-flex;align-items:center;gap:8px;justify-content:flex-start;border:1px solid var(--border);background:#fff;color:var(--fg);padding:10px 12px;border-radius:999px;font-size:13px;cursor:pointer}.metric-btn .dot{width:10px;height:10px;border-radius:50%}.chart-card-title{font-weight:800;margin:0 0 8px;color:var(--fg)}.chart{height:300px}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%);background:#111;color:#fff;padding:12px 16px;border-radius:12px;box-shadow:0 10px 30px #0003;z-index:9999;font-size:14px}.fab-top{position:fixed;right:22px;bottom:22px;background:var(--primary);color:#fff;border:none;border-radius:999px;padding:12px 14px;box-shadow:0 12px 28px #0000002e;cursor:pointer;display:none;z-index:9999;font-weight:800}.fab-top.show{display:inline-flex;align-items:center;gap:8px}