:root{--bg-primary: #0a0c16;--bg-secondary: #121528;--bg-glass: rgba(18, 21, 40, .6);--border-glass: rgba(255, 255, 255, .07);--border-glass-hover: rgba(255, 255, 255, .15);--color-voltage: #00f0ff;--color-voltage-glow: rgba(0, 240, 255, .15);--color-current: #a855f7;--color-current-glow: rgba(168, 85, 247, .15);--color-power: #10b981;--color-power-glow: rgba(16, 185, 129, .15);--color-energy: #f59e0b;--color-energy-glow: rgba(245, 158, 11, .15);--text-main: #f8fafc;--text-muted: #64748b;--text-dim: #475569;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-digital: "Orbitron", monospace}*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--bg-primary);color:var(--text-main);font-family:var(--font-sans);min-height:100vh;overflow-x:hidden;background-image:radial-gradient(circle at 10% 20%,rgba(99,102,241,.08) 0%,transparent 40%),radial-gradient(circle at 90% 80%,rgba(6,182,212,.08) 0%,transparent 40%);background-attachment:fixed}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--text-dim);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-container{max-width:1400px;margin:0 auto;padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.glass-card{background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-glass);border-radius:16px;padding:1.5rem;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 32px #0000005e}.glass-card:hover{border-color:var(--border-glass-hover);transform:translateY(-2px);box-shadow:0 12px 40px #00000073}.header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.brand-section{display:flex;align-items:center;gap:.75rem}.logo-glow{font-size:2.25rem;filter:drop-shadow(0 0 8px var(--color-voltage));animation:pulse 2s infinite alternate}.title-area h1{font-size:1.5rem;font-weight:700;letter-spacing:-.025em;background:linear-gradient(135deg,#fff 30%,#a5b4fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.title-area p{font-size:.85rem;color:var(--text-muted)}.system-status{display:flex;align-items:center;gap:1.25rem}.status-badge{display:flex;align-items:center;gap:.5rem;padding:.5rem .85rem;border-radius:20px;font-size:.8rem;font-weight:500;border:1px solid var(--border-glass)}.status-indicator{width:8px;height:8px;border-radius:50%;position:relative}.status-indicator.online{background-color:var(--color-power);box-shadow:0 0 10px var(--color-power)}.status-indicator.offline{background-color:#ef4444;box-shadow:0 0 10px #ef4444}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.25rem}.metric-card{position:relative;overflow:hidden}.metric-card:before{content:"";position:absolute;top:0;right:0;width:80px;height:80px;border-radius:50%;filter:blur(40px);opacity:.15;transition:opacity .3s}.metric-card.voltage:before{background-color:var(--color-voltage)}.metric-card.current:before{background-color:var(--color-current)}.metric-card.power:before{background-color:var(--color-power)}.metric-card.energy:before{background-color:var(--color-energy)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;color:var(--text-muted)}.card-header span{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.card-icon{padding:.5rem;border-radius:10px;background:#ffffff08}.metric-card.voltage .card-icon{color:var(--color-voltage)}.metric-card.current .card-icon{color:var(--color-current)}.metric-card.power .card-icon{color:var(--color-power)}.metric-card.energy .card-icon{color:var(--color-energy)}.digital-value{font-family:var(--font-digital);font-size:2.25rem;font-weight:700;letter-spacing:-.02em;margin-bottom:.25rem}.metric-card.voltage .digital-value{color:var(--color-voltage);text-shadow:0 0 15px var(--color-voltage-glow)}.metric-card.current .digital-value{color:var(--color-current);text-shadow:0 0 15px var(--color-current-glow)}.metric-card.power .digital-value{color:var(--color-power);text-shadow:0 0 15px var(--color-power-glow)}.metric-card.energy .digital-value{color:var(--color-energy);text-shadow:0 0 15px var(--color-energy-glow)}.unit-label{font-size:1rem;margin-left:.25rem;font-family:var(--font-sans);font-weight:500;opacity:.8}.card-footer{font-size:.75rem;color:var(--text-muted);display:flex;align-items:center;gap:.35rem}.main-content-grid{display:grid;grid-template-columns:2fr 1fr;gap:1.5rem}@media (max-width: 1024px){.main-content-grid{grid-template-columns:1fr}}.chart-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.chart-controls{display:flex;gap:.5rem}.chart-tab-btn{background:#ffffff08;border:1px solid var(--border-glass);color:var(--text-muted);padding:.4rem .8rem;border-radius:8px;font-size:.8rem;cursor:pointer;transition:all .2s;font-weight:500}.chart-tab-btn:hover{border-color:var(--border-glass-hover);color:var(--text-main)}.chart-tab-btn.active{background:var(--text-main);color:var(--bg-primary);border-color:var(--text-main)}.chart-canvas-container{width:100%;position:relative}.chart-svg{width:100%;height:300px;overflow:visible}.chart-grid-line{stroke:#ffffff08;stroke-dasharray:4}.chart-axis-line{stroke:#ffffff14}.chart-axis-text{font-size:10px;fill:var(--text-muted);font-family:var(--font-sans)}.chart-line{fill:none;stroke-width:2.5;stroke-linecap:round;filter:drop-shadow(0px 4px 8px rgba(0,0,0,.5))}.chart-area{opacity:.15}.chart-node{stroke-width:2;cursor:pointer}.estimator-panel{display:flex;flex-direction:column;gap:1.5rem}.panel-title h3{font-size:1.1rem;font-weight:600;margin-bottom:.25rem}.panel-title p{font-size:.8rem;color:var(--text-muted)}.slider-group{margin-top:1rem}.slider-label-row{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.85rem}.slider-unit{font-weight:600;color:var(--color-energy)}input[type=range].custom-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:#ffffff1a;outline:none;margin-bottom:1.5rem}input[type=range].custom-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--color-energy);box-shadow:0 0 10px var(--color-energy-glow);cursor:pointer;transition:transform .1s}input[type=range].custom-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.bill-results{display:flex;flex-direction:column;gap:1rem;background:#ffffff05;padding:1rem;border-radius:12px;border:1px solid rgba(255,255,255,.03)}.bill-item{display:flex;justify-content:space-between;align-items:center;padding-bottom:.75rem;border-bottom:1px dashed rgba(255,255,255,.05)}.bill-item:last-child{padding-bottom:0;border-bottom:none}.bill-item span{font-size:.85rem;color:var(--text-muted)}.bill-val{font-family:var(--font-digital);font-size:1.25rem;color:var(--text-main)}.bill-val.highlight{color:var(--color-power);font-size:1.5rem}.history-section{display:flex;flex-direction:column;gap:1rem}.section-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem}.table-container{overflow-x:auto;border-radius:12px;border:1px solid var(--border-glass)}.history-table{width:100%;border-collapse:collapse;text-align:left;font-size:.85rem}.history-table th{background:#ffffff05;padding:.85rem 1.25rem;font-weight:600;color:var(--text-muted);border-bottom:1px solid var(--border-glass);text-transform:uppercase;font-size:.75rem;letter-spacing:.05em}.history-table td{padding:.85rem 1.25rem;border-bottom:1px solid rgba(255,255,255,.03);color:var(--text-main)}.history-table tr:last-child td{border-bottom:none}.history-table tr:hover td{background:#ffffff03}.table-time{color:var(--text-muted)}.badge-v{color:var(--color-voltage);font-weight:500}.badge-i{color:var(--color-current);font-weight:500}.badge-p{color:var(--color-power);font-weight:500}.badge-e{color:var(--color-energy);font-weight:500}.empty-state{text-align:center;padding:3rem;color:var(--text-muted);display:flex;flex-direction:column;align-items:center;gap:.5rem}@keyframes pulse{0%{filter:drop-shadow(0 0 4px var(--color-voltage));opacity:.8}to{filter:drop-shadow(0 0 12px var(--color-voltage));opacity:1}}@keyframes spin-slow{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin-animation{animation:spin-slow 12s linear infinite}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.auth-card{width:100%;max-width:420px;padding:2.5rem;display:flex;flex-direction:column}.auth-tabs{display:flex;background:#12152880;border-radius:8px;padding:4px;margin-bottom:2rem;border:1px solid rgba(255,255,255,.05)}.auth-tab{flex:1;background:transparent;border:none;color:var(--text-muted);padding:.75rem;font-size:.875rem;font-weight:500;cursor:pointer;border-radius:6px;transition:all .2s ease}.auth-tab.active{background:#ffffff1a;color:var(--text-light);box-shadow:0 2px 8px #0003}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.input-group{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:1rem;color:var(--text-muted)}.input-group input{width:100%;background:#12152899;border:1px solid rgba(255,255,255,.1);padding:.875rem 1rem .875rem 3rem;border-radius:8px;color:var(--text-light);font-size:.9rem;transition:border-color .2s;outline:none}.input-group input:focus{border-color:var(--color-voltage);box-shadow:0 0 0 2px #00f0ff26}.auth-btn{width:100%;padding:.875rem;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;display:flex;justify-content:center;align-items:center;gap:.5rem;transition:all .2s}.primary-btn{background:linear-gradient(135deg,var(--color-voltage),#00a2ff);color:#0b0f19;box-shadow:0 4px 12px #00f0ff33}.primary-btn:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-1px)}.primary-btn:disabled{opacity:.6;cursor:not-allowed}.google-btn{background:#ffffff0d;color:var(--text-light);border:1px solid rgba(255,255,255,.1)}.google-btn:hover{background:#ffffff1a}.text-btn{background:transparent;color:var(--text-muted)}.text-btn:hover{color:var(--text-light)}.auth-toggle-text{text-align:center;font-size:.85rem;color:var(--text-muted);margin-top:.5rem}.auth-toggle-text span{color:var(--color-voltage);cursor:pointer;font-weight:500}.auth-toggle-text span:hover{text-decoration:underline}.auth-divider{display:flex;align-items:center;text-align:center;margin:1.5rem 0;color:var(--text-dim);font-size:.8rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;border-bottom:1px solid rgba(255,255,255,.05)}.auth-divider span{padding:0 1rem}.auth-error{background:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#f87171;padding:.75rem;border-radius:6px;font-size:.85rem;margin-bottom:1.5rem;text-align:center}.sign-out-btn{background:transparent;color:var(--text-muted);border:1px solid rgba(255,255,255,.1);padding:.4rem 1rem;font-size:.8rem;border-radius:6px;cursor:pointer;transition:all .2s;margin-right:1rem}.sign-out-btn:hover{background:#ffffff0d;color:var(--text-light)}