:root{--bg:#f5f6f8;--bg-card:#fff;--bg-elevated:#fff;--bg-chart-area:#f3f4f6;--bg-input:#f3f4f6;--text:#111827;--text-primary:#111827;--text-secondary:#4b5563;--text-muted:#6b7280;--accent:#2563eb;--border:#e5e7eb;--danger:#dc2626;--success:#16a34a;--btn-neutral:#4b5563}[data-theme=dark]{--bg:#0f172a;--bg-card:#1e293b;--bg-elevated:#1e293b;--bg-chart-area:#0003;--bg-input:#0000004d;--text:#f8fafc;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--accent:#38bdf8;--border:#334155;--danger:#ef4444;--success:#22c55e;--btn-neutral:#475569}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overscroll-behavior:none;-webkit-tap-highlight-color:transparent;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.login-screen{background:var(--bg);justify-content:center;align-items:center;min-height:100dvh;padding:20px;display:flex}.login-card{background:var(--bg-card);border:1px solid var(--border);text-align:center;border-radius:16px;width:100%;max-width:360px;padding:40px 32px;box-shadow:0 8px 32px #0000001a}.login-card h1{color:var(--text-primary);margin-bottom:8px;font-size:28px}.login-card .brand-title{background:linear-gradient(135deg,#38bdf8,#818cf8);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:32px;font-weight:700}.login-card p{color:var(--text-muted);margin-bottom:24px;line-height:1.5}.btn-google{color:#3c4043;cursor:pointer;letter-spacing:-.1px;background:#fff;border:1px solid #747775;border-radius:20px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:40px;padding:0 16px;font-family:Google Sans,Google Sans Text,Roboto,system-ui,sans-serif;font-size:15px;font-weight:700;transition:opacity .2s;display:inline-flex;box-shadow:0 1px 3px #0000001a}.login-card .btn-google{width:70%}.btn-google:disabled{opacity:.6;cursor:not-allowed}.error-msg{background:var(--danger);color:#fff;border-radius:8px;margin-bottom:16px;padding:10px 16px;font-size:14px;line-height:1.4}.loading-screen{background:var(--bg);flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:100dvh;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen p{color:var(--text-muted);font-size:14px}.skeleton{background:linear-gradient(90deg, var(--bg-card) 25%, var(--bg-elevated) 50%, var(--bg-card) 75%);background-size:200% 100%;border-radius:8px;animation:1.5s ease-in-out infinite shimmer}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.skeleton-chart{border-radius:12px;height:280px;margin-bottom:16px}.skeleton-title{width:120px;height:14px;margin-bottom:12px}.skeleton-text{width:80px;height:12px;margin-top:8px}.error-screen{text-align:center;background:var(--bg);flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:100dvh;padding:20px;display:flex}.error-screen h2{color:var(--text-primary);font-size:20px}.error-screen p{color:var(--text-muted);max-width:300px;font-size:14px;line-height:1.5}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:48px 24px;display:flex}.empty-state-icon{opacity:.6;margin-bottom:16px;font-size:48px}.empty-state h3{color:var(--text-primary);margin-bottom:8px;font-size:18px}.empty-state p{color:var(--text-muted);max-width:280px;font-size:14px;line-height:1.5}.app{background:var(--bg);flex-direction:column;min-height:100dvh;display:flex}.app-header{box-sizing:border-box;background:var(--bg-card);border-bottom:1px solid var(--border);z-index:100;justify-content:space-between;align-items:center;height:52px;padding:10px 16px;display:flex;position:sticky;top:0}.header-left{flex-wrap:nowrap;align-items:center;display:flex}.header-left h1{color:var(--text-primary);font-size:18px}.sync-info{color:var(--text-muted);white-space:nowrap;margin:0;font-size:11px;display:inline-block}.header-right{align-items:center;gap:8px;display:flex}.btn-icon{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;transition:background .2s;display:flex}.btn-icon:active{background:var(--bg-elevated)}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;min-height:44px;padding:12px 20px;font-size:14px;font-weight:600;transition:opacity .2s}.btn-primary:active{opacity:.8}.btn-secondary{color:var(--text-muted);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:8px;min-height:44px;padding:10px 16px;font-size:13px;transition:background .2s}.btn-secondary:active{background:var(--bg-elevated)}.btn-icon{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;width:26px;height:26px;min-height:26px;padding:0;font-size:14px;font-weight:600;transition:opacity .2s,background .2s,border-color .2s;display:inline-flex}[data-theme=dark] .btn-icon{color:#fff;background:#ffffff1f;border:1px solid #ffffff38}.btn-icon:hover{opacity:.85}.btn-signout{box-sizing:border-box;color:#dc2626;cursor:pointer;background:#fef2f2;border:1px solid #dc2626;border-radius:6px;justify-content:center;align-items:center;height:26px;min-height:26px;padding:0 10px;font-size:.78rem;font-weight:500;transition:background .2s,opacity .2s;display:inline-flex}[data-theme=dark] .btn-signout{color:#ef4444;background:#ef44442e;border:1px solid #ef444466}.btn-signout:hover{opacity:.9}.nav-tabs{box-sizing:border-box;background:var(--bg-card);border-bottom:1px solid var(--border);-webkit-overflow-scrolling:touch;z-index:99;height:46px;display:flex;position:sticky;top:52px;overflow-x:auto}.nav-tabs button{min-width:80px;color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;min-height:44px;padding:14px 8px;font-size:13px;font-weight:500;transition:all .2s}.nav-tabs button.active{color:var(--accent);border-bottom-color:var(--accent)}.nav-tabs button:active{background:var(--bg-elevated)}.app-content{flex:1;padding:16px}.chart-section{background:var(--bg-card);border-radius:12px;margin-bottom:16px;padding:16px}.chart-section h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px;font-size:14px}.chart-container{height:280px;position:relative}.chart-container-sm{height:240px}.chart-container-tall{height:320px}.chart-total{text-align:center;color:var(--text-muted);margin-top:8px;font-size:13px}.filter-bar{z-index:98;background:var(--bg);border-bottom:1px solid var(--border);justify-content:flex-end;align-items:center;gap:16px;margin:-16px -16px 16px;padding:10px 20px;display:flex;position:sticky;top:97px}.filter-group{align-items:center;gap:8px;display:flex}.filter-group label{color:var(--text-muted);font-size:13px;font-weight:600}.filter-group select{background:var(--bg-card);width:135px;color:var(--text-primary);border:2px solid var(--accent);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%233b82f6' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");background-position:right 10px center;background-repeat:no-repeat;border-radius:8px;outline:none;min-height:34px;padding:6px 30px 6px 12px;font-size:13px;font-weight:600;transition:border-color .2s,box-shadow .2s;box-shadow:0 1px 3px #00000014}.legend-section{background:var(--bg-card);border-radius:12px;margin-bottom:16px;padding:16px}.legend-section h4{color:var(--text-muted);margin-bottom:12px;font-size:13px}.legend-grid{flex-wrap:wrap;gap:8px;display:flex}.legend-item{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text);cursor:pointer;border-radius:6px;align-items:center;gap:6px;min-height:36px;padding:8px 12px;font-size:12px;transition:opacity .2s;display:flex}.legend-item:active{opacity:.7}.legend-item.hidden{opacity:.4}.legend-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.network-banner{background:var(--danger);color:#fff;text-align:center;padding:8px 16px;font-size:12px;font-weight:500}.refreshing{opacity:.6;pointer-events:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.theme-toggle{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;display:flex}.theme-toggle input{opacity:0;width:0;height:0;position:absolute}.theme-toggle-track{background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;align-items:center;width:40px;height:24px;padding:0 3px;transition:background .2s,border-color .2s;display:flex;position:relative}.theme-toggle input:checked+.theme-toggle-track{background:var(--accent);border-color:var(--accent)}.theme-toggle-icon{font-size:14px;line-height:1;transition:transform .2s}.theme-toggle input:not(:checked)+.theme-toggle-track .theme-toggle-icon{transform:translate(1px,1px)}.theme-toggle input:checked+.theme-toggle-track .theme-toggle-icon{transform:translate(14px,1px)}@media (display-mode:standalone){.app-header{padding-top:max(12px, env(safe-area-inset-top))}.app-content{padding-bottom:env(safe-area-inset-bottom)}}@supports (padding:env(safe-area-inset-bottom)){.app-content{padding-bottom:max(16px, env(safe-area-inset-bottom))}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background:var(--accent);border-radius:3px}::-webkit-scrollbar-track{background:0 0}