:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--surface-1:#fcfcfb;--page-plane:#f9f9f7;--text-primary:#0b0b0b;--text-secondary:#52514e;--text-muted:#898781;--gridline:#e1e0d9;--baseline:#c3c2b7;--border:#0b0b0b1a;--success-text:#006300;--series-heart-rate:#2a78d6;--series-steps:#eb6834;--series-sleep:#1baf7a;--series-weight:#eda100;font-family:system-ui,-apple-system,Segoe UI,sans-serif}@media (prefers-color-scheme:dark){:root:where(:not([data-theme=light])){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--surface-1:#1a1a19;--page-plane:#0d0d0d;--text-primary:#fff;--text-secondary:#c3c2b7;--text-muted:#898781;--gridline:#2c2c2a;--baseline:#383835;--border:#ffffff1a;--success-text:#0ca30c;--series-heart-rate:#3987e5;--series-steps:#d95926;--series-sleep:#199e70;--series-weight:#c98500}}*{box-sizing:border-box}body{background:var(--page-plane);color:var(--text-primary);margin:0}.app{max-width:1080px;margin:0 auto;padding:32px 24px 64px}.app__header{margin-bottom:24px}.app__header-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.app__header h1{margin:0;font-size:1.75rem;font-weight:700}.app__subtitle{color:var(--text-secondary);margin:4px 0 0;font-size:.95rem}.app__user-badge{background:var(--surface-1);border:1px solid var(--border);border-radius:20px;align-items:center;gap:12px;padding:6px 12px;font-size:.85rem;display:flex}.user-email{color:var(--text-primary);font-weight:500}.logout-btn{color:#ef4444;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:2px 6px;font-size:.8rem;font-weight:600}.logout-btn:hover{background:#ef44441a}.app__footer{color:var(--text-muted);margin-top:32px;font-size:.8rem}.dashboard-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;display:grid}.dashboard-status{text-align:center;color:var(--text-secondary);padding:48px 0}.dashboard-status--error{color:var(--series-steps)}.stat-card{background:var(--surface-1);border:1px solid var(--border);border-radius:12px;padding:16px 16px 8px}.stat-card__header{align-items:flex-start;gap:12px;margin-bottom:8px;display:flex}.stat-card__icon{width:36px;height:36px;color:var(--card-accent);background:color-mix(in srgb, var(--card-accent) 14%, transparent);border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.stat-card__heading{flex:1;min-width:0}.stat-card__label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.03em;margin:0;font-size:.8rem;font-weight:600}.stat-card__value-row{align-items:baseline;gap:4px;margin-top:2px;display:flex}.stat-card__value{font-size:1.6rem;font-weight:700;line-height:1}.stat-card__unit{color:var(--text-secondary);font-size:.85rem}.stat-card__delta{color:var(--text-muted);white-space:nowrap;padding-top:2px;font-size:.75rem}.stat-card__delta--good{color:var(--success-text)}.stat-card__chart{margin:0 -8px}.chart-tooltip{background:var(--surface-1);border:1px solid var(--border);border-radius:8px;padding:6px 10px;font-size:.75rem;box-shadow:0 4px 12px #0000001f}.chart-tooltip__label{color:var(--text-muted);margin-bottom:2px}.chart-tooltip__value{color:var(--text-primary);font-weight:600}.auth-overlay{justify-content:center;align-items:center;min-height:50vh;padding:24px 0;display:flex}.auth-card{background:var(--surface-1);border:1px solid var(--border);text-align:center;border-radius:16px;width:100%;max-width:400px;padding:32px 28px;box-shadow:0 10px 30px #00000040}.auth-icon{color:#3b82f6;background:#3b82f61a;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;margin:0 auto 16px;display:flex}.auth-card h2{margin:0 0 8px;font-size:1.35rem;font-weight:700}.auth-subtitle{color:var(--text-secondary);margin-bottom:24px;font-size:.88rem;line-height:1.4}.auth-field{text-align:left;margin-bottom:16px}.auth-field label{color:var(--text-secondary);margin-bottom:6px;font-size:.8rem;font-weight:600;display:block}.auth-field input{border:1px solid var(--border);background:var(--surface-2,#ffffff0d);width:100%;color:var(--text-primary);box-sizing:border-box;border-radius:8px;padding:10px 14px;font-size:.95rem}.auth-field input:focus{border-color:#3b82f6;outline:none}.auth-error{color:#ef4444;text-align:left;background:#ef44441a;border-radius:6px;margin-bottom:16px;padding:8px 12px;font-size:.82rem}.auth-submit-btn{color:#fff;cursor:pointer;background:#3b82f6;border:none;border-radius:8px;width:100%;margin-top:8px;padding:12px;font-size:.95rem;font-weight:600;transition:background .2s}.auth-submit-btn:hover{background:#2563eb}.auth-hint{color:var(--text-muted);margin-top:20px;font-size:.75rem;line-height:1.3}