:root{--color-bg: #f7f6f3;--color-surface: #ffffff;--color-surface2: #f1f0ec;--color-border: rgba(0,0,0,.1);--color-border-strong: rgba(0,0,0,.2);--color-text: #1a1917;--color-text-muted: #6b6a65;--color-text-faint: #9e9d98;--color-accent: #185FA5;--color-accent-light: #E6F1FB;--color-accent-text: #0C447C;--color-green: #3B6D11;--color-green-light: #EAF3DE;--color-green-text: #27500A;--color-amber: #854F0B;--color-amber-light: #FAEEDA;--color-amber-text: #633806;--color-red: #A32D2D;--color-red-light: #FCEBEB;--color-red-text: #791F1F;--color-purple: #534AB7;--color-purple-light: #EEEDFE;--color-purple-text: #3C3489;--color-coral: #993C1D;--color-coral-light: #FAECE7;--color-coral-text: #712B13;--color-teal: #0F6E56;--color-teal-light: #E1F5EE;--color-teal-text: #085041;--radius: 10px;--radius-sm: 6px}@media (prefers-color-scheme: dark){:root{--color-bg: #1a1917;--color-surface: #242320;--color-surface2: #2c2c29;--color-border: rgba(255,255,255,.1);--color-border-strong: rgba(255,255,255,.2);--color-text: #f0efea;--color-text-muted: #a8a79f;--color-text-faint: #6b6a65;--color-accent-light: #0C447C;--color-accent-text: #B5D4F4;--color-green-light: #27500A;--color-green-text: #C0DD97;--color-amber-light: #633806;--color-amber-text: #FAC775;--color-red-light: #791F1F;--color-red-text: #F7C1C1;--color-purple-light: #3C3489;--color-purple-text: #CECBF6;--color-coral-light: #712B13;--color-coral-text: #F5C4B3;--color-teal-light: #085041;--color-teal-text: #9FE1CB}}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}.app-shell{max-width:900px;margin:0 auto;padding:2rem 1.5rem}@media (max-width: 600px){.app-shell{padding:1.25rem 1rem}}.card{background:var(--color-surface);border:.5px solid var(--color-border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem}.card h2{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--color-text-muted);margin-bottom:1rem}.field{margin-bottom:1rem}.field label{display:block;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);margin-bottom:5px}.field input,.field select,.field textarea{width:100%;padding:9px 12px;border-radius:var(--radius-sm);border:.5px solid var(--color-border-strong);background:var(--color-surface2);color:var(--color-text);font-size:14px;font-family:inherit;outline:none;transition:border-color .15s}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-accent)}.field .hint{font-size:12px;color:var(--color-text-faint);margin-top:4px}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--radius-sm);border:.5px solid var(--color-border-strong);background:var(--color-surface);color:var(--color-text);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;font-family:inherit}.btn:hover{background:var(--color-surface2)}.btn-primary{background:var(--color-accent);border-color:var(--color-accent);color:#fff}.btn-primary:hover{opacity:.9}.btn-sm{padding:6px 12px;font-size:12px}.btn-danger{color:var(--color-red);border-color:var(--color-red)}.btn-danger:hover{background:var(--color-red-light)}.tabs{display:flex;gap:4px;background:var(--color-surface2);border-radius:var(--radius-sm);padding:4px;margin-bottom:1.5rem;flex-wrap:wrap}.tab-btn{padding:7px 16px;border-radius:5px;border:none;background:transparent;color:var(--color-text-muted);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;font-family:inherit;white-space:nowrap}.tab-btn:hover{color:var(--color-text)}.tab-btn.active{background:var(--color-surface);color:var(--color-text);box-shadow:0 1px 3px #00000014}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin-bottom:1.5rem}.stat-card{background:var(--color-surface2);border-radius:var(--radius-sm);padding:12px 14px}.stat-card .val{font-size:1.25rem;font-weight:600;letter-spacing:-.02em}.stat-card .lbl{font-size:11px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-top:2px}.sess-z1{background:var(--color-green-light);color:var(--color-green-text)}.sess-z2{background:var(--color-accent-light);color:var(--color-accent-text)}.sess-z3{background:var(--color-purple-light);color:var(--color-purple-text)}.sess-z4{background:var(--color-amber-light);color:var(--color-amber-text)}.sess-z5{background:var(--color-coral-light);color:var(--color-coral-text)}.sess-rest{background:var(--color-surface2);color:var(--color-text-muted)}.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;font-weight:500}.tag-base{background:var(--color-accent-light);color:var(--color-accent-text)}.tag-build{background:var(--color-green-light);color:var(--color-green-text)}.tag-race-prep{background:var(--color-purple-light);color:var(--color-purple-text)}.tag-taper{background:var(--color-amber-light);color:var(--color-amber-text)}.tag-recovery{background:var(--color-surface2);color:var(--color-text-muted)}.tip-box{background:var(--color-teal-light);border-radius:var(--radius-sm);padding:12px 14px;font-size:13px;color:var(--color-teal-text);margin-bottom:1rem;display:flex;gap:10px;align-items:flex-start;line-height:1.5}.adaptive-banner{border-radius:var(--radius-sm);padding:10px 12px;font-size:12px;margin-bottom:12px;display:flex;gap:8px;align-items:flex-start;line-height:1.45}.adaptive-banner.good{background:var(--color-green-light);color:var(--color-green-text)}.adaptive-banner.hold{background:var(--color-accent-light);color:var(--color-accent-text)}.adaptive-banner.go{background:var(--color-teal-light);color:var(--color-teal-text)}.adaptive-banner.push{background:var(--color-amber-light);color:var(--color-amber-text)}.adaptive-banner.warning{background:var(--color-red-light);color:var(--color-red-text)}