:root{--bg-primary:#f5f5f5;--bg-secondary:#fff;--bg-card:#fff;--text-primary:#333;--text-secondary:#666;--text-tertiary:#999;--border-color:#e0e0e0;--shadow:#0000001a;--chart-grid:#e0e0e0;--header-gradient-start:#00bcd4;--header-gradient-mid:#0097a7;--header-gradient-end:#00838f}body.dark-mode{--bg-primary:#121212;--bg-secondary:#1e1e1e;--bg-card:#2a2a2a;--text-primary:#e0e0e0;--text-secondary:#b0b0b0;--text-tertiary:grey;--border-color:#404040;--shadow:#0000004d;--chart-grid:#404040;--header-gradient-start:#00838f;--header-gradient-mid:#006064;--header-gradient-end:#004d40}*{box-sizing:border-box;margin:0;padding:0}body{background:#f5f5f5;background:var(--bg-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app{background:#fff;background:var(--bg-secondary);box-shadow:0 0 20px #0000001a;margin:0 auto;max-width:480px;min-height:100vh}.header{background:linear-gradient(135deg,#00bcd4,#0097a7 50%,#00838f);box-shadow:0 2px 8px 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h4{color:#666;color:var(--text-secondary);font-size:14px;margin-bottom:10px}.gauge-value{color:#333;color:var(--text-primary);font-size:28px;font-weight:700}.gauge-unit{color:#999;color:var(--text-tertiary);font-size:12px;margin-top:5px}.loading{color:#666;color:var(--text-secondary);padding:40px;text-align:center}.error{background:#ffebee;border-radius:8px;color:#c62828;margin:20px;padding:15px}.status-badge{border-radius:20px;display:inline-block;font-size:10px;font-weight:700;margin-top:5px;padding:4px 10px}.status-charging{background:#4caf50;color:#fff}.status-discharging{background:#f44336;color:#fff}.status-idle{background:#9e9e9e;color:#fff}.status-buying{background:#ff9800;color:#fff}.status-selling{background:#4caf50;color:#fff}.back-button{align-items:center;background:#00bcd4;border:none;border-radius:8px;color:#fff;cursor:pointer;display:flex;font-size:14px;gap:8px;margin-bottom:20px;padding:12px 24px;transition:background .2s}.back-button:hover{background:#0097a7}.detail-card{background:#fff;background:var(--bg-secondary);border:2px solid #e0e0e0;border-radius:12px;margin-bottom:20px;padding:20px}.detail-card h3{align-items:center;color:#333;color:var(--text-primary);display:flex;font-size:16px;gap:8px;margin-bottom:15px}.detail-row{border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;padding:10px 0}.detail-row:last-child{border-bottom:none}.detail-label{color:#666;color:var(--text-secondary);font-size:14px}.detail-value{color:#333;color:var(--text-primary);font-size:14px;font-weight:600}.battery-grid{grid-gap:15px;display:grid;gap:15px;grid-template-columns:1fr 1fr}.battery-card{background:#fff;background:var(--bg-secondary);border:2px solid #e0e0e0;border-radius:12px;padding:15px;text-align:center}.battery-card h4{color:#333;color:var(--text-primary);font-size:14px;margin-bottom:10px}.battery-soc{font-size:32px;font-weight:700;margin:10px 0}.battery-info{color:#666;color:var(--text-secondary);font-size:12px;margin:5px 0}.chart-container{padding:20px}.chart-container h3{color:#333;color:var(--text-primary);font-size:16px;margin-bottom:15px}.modal-overlay{animation:fadeIn .2s;background:#000000b3}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{animation:slideUp .3s;border-radius:16px;max-height:80vh;max-width:400px;padding:20px;position:relative;width:90%}@keyframes slideUp{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}.modal-header{margin-bottom:20px;padding-bottom:15px}.modal-header h2{align-items:center;color:#333;color:var(--text-primary);display:flex;font-size:20px;gap:10px;margin:0}.modal-close{background:#f5f5f5;background:var(--bg-primary);border-radius:50%;height:32px;transition:background .2s;width:32px}.modal-close:hover{background:#e0e0e0}.battery-info-content{background:#f5f5f5;background:var(--bg-primary);border-radius:8px;color:#333;color:var(--text-primary);font-family:Courier New,monospace;font-size:13px;line-height:1.6;padding:15px;white-space:pre-wrap}.battery-summary-grid{grid-gap:12px;display:grid;gap:12px;grid-template-columns:1fr 1fr}.summary-item{display:flex;flex-direction:column;gap:4px}.summary-label{color:#666;color:var(--text-secondary);font-size:11px;font-weight:600;text-transform:uppercase}.summary-value{color:#333;color:var(--text-primary);font-size:18px;font-weight:700}.chart-section{margin-top:30px}.chart-section h3{color:#333;color:var(--text-primary);margin-bottom:20px}.chart-container{background:#fff;background:var(--bg-secondary);border:2px solid #e0e0e0;border-radius:12px;margin-bottom:30px;padding:15px}.chart-title{color:#666;color:var(--text-secondary);font-size:14px;font-weight:600;margin-bottom:10px;text-transform:uppercase}.battery-button-grid{grid-gap:12px;display:grid;gap:12px;grid-template-columns:1fr 1fr;margin-bottom:30px}.battery-button{background:#fff;background:var(--bg-secondary);border:3px solid #e0e0e0;border-radius:12px;cursor:pointer;overflow:hidden;padding:0;transition:transform .2s,box-shadow .2s}.battery-button:active{transform:scale(.98)}.battery-button:hover{box-shadow:0 4px 12px #00000026}.battery-button-header{align-items:center;color:#fff;display:flex;font-size:14px;font-weight:700;justify-content:space-between;padding:10px}.battery-button-soc{font-size:16px}.battery-button-content{padding:12px}.battery-button-row{display:flex;font-size:13px;justify-content:space-between;margin-bottom:6px}.battery-button-row:last-child{margin-bottom:0}.battery-button-row span:first-child{color:#666;color:var(--text-secondary)}.battery-button-row span:last-child{color:#333;color:var(--text-primary);font-weight:700}.modal-overlay{align-items:center;background:#00000080;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:1000}.modal-content{background:#fff;background:var(--bg-secondary);border-radius:12px;box-shadow:0 10px 40px #0000004d;max-height:90vh;max-width:440px;overflow-y:auto;width:100%}.modal-header{align-items:center;border-bottom:2px solid #e0e0e0;display:flex;justify-content:space-between;padding:20px}.modal-header h3{color:#333;color:var(--text-primary);margin:0}.modal-close{align-items:center;background:none;border:none;color:#666;color:var(--text-secondary);cursor:pointer;display:flex;justify-content:center;padding:4px}.modal-close:hover{color:#333;color:var(--text-primary)}.modal-body{padding:20px}.modal-row{border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;margin-bottom:12px;padding-bottom:12px}.modal-row:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.modal-label{color:#666;color:var(--text-secondary);font-size:13px;font-weight:600}.modal-value{color:#333;color:var(--text-primary);font-size:14px;font-weight:700}.modal-section{border-top:2px solid #e0e0e0;margin-top:20px;padding-top:20px}.modal-section h4{color:#666;color:var(--text-secondary);font-size:14px;margin-bottom:12px;text-transform:uppercase}.solar-summary-grid{grid-gap:12px;display:grid;gap:12px;grid-template-columns:1fr 1fr}.string-detail-grid{grid-gap:8px;display:grid;gap:8px;grid-template-columns:1fr}body.dark-mode .header{background:linear-gradient(135deg,#00bcd4,#0097a7 50%,#00838f);background:linear-gradient(135deg,var(--header-gradient-start) 0,var(--header-gradient-mid) 50%,var(--header-gradient-end) 100%);box-shadow:0 2px 8px #00838f80}body.dark-mode .app{box-shadow:0 0 20px #00000080}body.dark-mode .app,body.dark-mode .content{background:#fff;background:var(--bg-secondary)}body.dark-mode .chart-container,body.dark-mode .detail-card,body.dark-mode .info-button{background:#fff;background:var(--bg-card);border-color:#e0e0e0;border-color:var(--border-color);color:#333;color:var(--text-primary)}body.dark-mode .value{color:#333;color:var(--text-primary)}body.dark-mode .label,body.dark-mode .unit{color:#666;color:var(--text-secondary)}body.dark-mode .nav-button{background:#fff;background:var(--bg-card);border-color:#e0e0e0;border-color:var(--border-color)}body.dark-mode .nav-button:hover{background:#383838}body.dark-mode .back-button,body.dark-mode .nav-button-label{color:#333;color:var(--text-primary)}body.dark-mode .back-button{background:#fff;background:var(--bg-card);border-color:#e0e0e0;border-color:var(--border-color)}body.dark-mode .back-button:hover{background:#383838}body.dark-mode .tab{border-bottom-color:#e0e0e0;border-bottom-color:var(--border-color);color:#666;color:var(--text-secondary)}body.dark-mode .tab.active{border-bottom-color:#00bcd4;color:#00bcd4}body.dark-mode h2,body.dark-mode h3{color:#333;color:var(--text-primary)}body.dark-mode .battery-label,body.dark-mode .string-label,body.dark-mode .summary-label{color:#666;color:var(--text-secondary)}body.dark-mode .battery-value,body.dark-mode .string-value,body.dark-mode .summary-value{color:#333;color:var(--text-primary)}body.dark-mode .recharts-cartesian-grid-horizontal line,body.dark-mode .recharts-cartesian-grid-vertical line{stroke:#e0e0e0;stroke:var(--chart-grid)}body.dark-mode .recharts-text{fill:#666;fill:var(--text-secondary)}body.dark-mode .recharts-legend-item-text{color:#333!important;color:var(--text-primary)!important}body.dark-mode .error,body.dark-mode .loading{color:#333;color:var(--text-primary)}body.dark-mode .modal-overlay{background:#000c}body.dark-mode .modal-content{background:#fff;background:var(--bg-card);color:#333;color:var(--text-primary)}body.dark-mode .modal-header{border-bottom-color:#e0e0e0;border-bottom-color:var(--border-color)}body.dark-mode .close-button{color:#666;color:var(--text-secondary)}body.dark-mode .close-button:hover{color:#333;color:var(--text-primary)}body.dark-mode .gauge-label{color:#666;color:var(--text-secondary)}body.dark-mode .gauge-value{color:#333;color:var(--text-primary)}body.dark-mode .header-button:hover{background:#ffffff26}body.dark-mode .weather-info{color:#666;color:var(--text-secondary)}body.dark-mode .string-metrics{border-color:#e0e0e0;border-color:var(--border-color)}body.dark-mode .battery-comparison,body.dark-mode .string-metrics{background:#fff;background:var(--bg-card)}.battery-forecast-banner{align-items:center;animation:slideIn .3s ease-out;border-radius:8px;box-shadow:0 2px 8px #0000001a;display:flex;gap:15px;margin:15px 20px;padding:15px 20px}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.battery-forecast-banner.green{background:linear-gradient(135deg,#4caf50,#66bb6a);color:#fff}.battery-forecast-banner.yellow{background:linear-gradient(135deg,#ffc107,#ffd54f);color:#333}.battery-forecast-banner.orange{background:linear-gradient(135deg,#ff9800,#ffb74d);color:#fff}.battery-forecast-banner.red{background:linear-gradient(135deg,#f44336,#e57373);color:#fff}.forecast-icon{align-items:center;display:flex;flex-shrink:0;justify-content:center}.forecast-content{display:flex;flex:1 1;flex-direction:column;gap:5px}.forecast-main{align-items:center;display:flex;flex-wrap:wrap;font-size:16px;font-weight:600;gap:5px}.forecast-warning{font-weight:700}.forecast-detail{font-weight:400;opacity:.9}.forecast-trend{font-size:13px;font-weight:500;opacity:.85}body.dark-mode .battery-forecast-banner.green{background:linear-gradient(135deg,#2e7d32,#388e3c)}body.dark-mode .battery-forecast-banner.yellow{background:linear-gradient(135deg,#f57f17,#f9a825);color:#fff}body.dark-mode .battery-forecast-banner.orange{background:linear-gradient(135deg,#e65100,#ef6c00)}body.dark-mode .battery-forecast-banner.red{background:linear-gradient(135deg,#c62828,#d32f2f)}:root{--auth-accent:var(--header-gradient-mid);--auth-error:#c62828;--auth-ok:#2e7d32}body.dark-mode{--auth-error:#ef9a9a;--auth-ok:#a5d6a7}.auth-page{background:var(--bg-primary);box-sizing:border-box;color:var(--text-primary);min-height:100vh;padding:16px}.auth-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 2px 8px var(--shadow);margin:24px auto 0;max-width:440px;padding:20px 16px}.auth-brand{align-items:center;color:var(--text-secondary);display:flex;font-size:14px;gap:10px}.auth-logo{border-radius:8px;height:36px;object-fit:cover;width:36px}.auth-title{color:var(--text-primary);font-size:22px;margin:16px 0}.auth-form{display:flex;flex-direction:column;gap:8px}.auth-dialog label,.auth-form label{font-size:14px;font-weight:600;margin-top:8px}.auth-dialog input,.auth-form input{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;box-sizing:border-box;color:var(--text-primary);font-size:16px;padding:12px;width:100%}.auth-dialog input:focus-visible,.auth-form input:focus-visible,.auth-link:focus-visible,.auth-primary:focus-visible,.auth-secondary:focus-visible,.user-menu-button:focus-visible{outline:3px solid var(--header-gradient-mid);outline:3px solid var(--auth-accent);outline-offset:2px}.auth-primary,.auth-secondary{border-radius:8px;box-sizing:border-box;cursor:pointer;display:block;font-size:16px;min-height:44px;padding:10px 16px;text-align:center;text-decoration:none;width:100%}.auth-primary{background:var(--header-gradient-mid);background:var(--auth-accent);border:none;color:#fff;margin-top:8px}.auth-primary:disabled{cursor:not-allowed;opacity:.5}.auth-secondary{background:#0000;border:1px solid var(--border-color);color:var(--text-primary)}.auth-link{background:none;border:none;color:var(--header-gradient-mid);color:var(--auth-accent);cursor:pointer;font-size:14px;padding:8px 0;text-align:left;text-decoration:underline}.auth-actions{display:flex;flex-direction:column;gap:8px;margin-top:12px}.auth-error{color:#c62828;color:var(--auth-error);font-size:14px;margin:4px 0;min-height:1.2em}.auth-error p{margin:2px 0}.auth-note,.auth-status{color:var(--text-secondary);font-size:14px;margin:4px 0}.auth-warning{color:#c62828;color:var(--auth-error);font-size:14px;font-weight:600}.auth-check{align-items:center;display:flex;gap:8px;margin:12px 0}.auth-facts{grid-gap:6px 12px;display:grid;gap:6px 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select,.admin-policy-row input{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;box-sizing:border-box;color:var(--text-primary);font-size:16px;min-height:44px;padding:8px 10px}.admin-policy{grid-gap:16px;display:grid;gap:16px}.admin-policy-row h3{font-size:16px;margin:0}@media (min-width:700px){.admin-card{margin-top:24px;padding:20px 24px}.admin-policy{grid-template-columns:1fr 1fr}}@media (min-width:600px){.auth-card{margin-top:64px;padding:28px 32px}.auth-stack{max-width:320px}}