@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap";
:root{--color-primary:#22d3ee;--color-primary-dim:#0891b2;--color-primary-glow:#22d3ee26;--color-accent:#a78bfa;--color-accent-dim:#7c3aed;--color-success:#34d399;--color-success-bg:#34d3991f;--color-warning:#fbbf24;--color-warning-bg:#fbbf241f;--color-danger:#f87171;--color-danger-bg:#f871711f;--color-info:#60a5fa;--color-info-bg:#60a5fa1f;--bg-base:#0a0e1a;--bg-surface:#111827;--bg-elevated:#1a2236;--bg-card:#111827b3;--bg-card-hover:#1a2236e6;--bg-glass:#11182780;--bg-input:#ffffff0a;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-tertiary:#64748b;--text-inverse:#0f172a;--border-subtle:#ffffff0f;--border-default:#ffffff1a;--border-active:#22d3ee4d;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow:0 0 20px #22d3ee26;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--sidebar-width:260px;--sidebar-collapsed:72px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "SF Mono", "Consolas", monospace;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:14px}body{font-family:var(--font-sans);background:var(--bg-base);color:var(--text-primary);line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(80% 50% at 50% -20%,#22d3ee14,#0000),radial-gradient(60% 40% at 80% 80%,#7c3aed0f,#0000);position:fixed;inset:0}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.app-layout{z-index:1;min-height:100vh;display:flex;position:relative}.main-content{margin-left:var(--sidebar-width);padding:var(--space-xl);min-height:100vh;transition:margin-left var(--transition-base);flex:1}@media (max-width:768px){.main-content{padding:var(--space-md);margin-left:0}}.sidebar{width:var(--sidebar-width);background:var(--bg-glass);-webkit-backdrop-filter:blur(24px);border-right:1px solid var(--border-subtle);z-index:100;height:100vh;transition:width var(--transition-base);flex-direction:column;display:flex;position:fixed;top:0;left:0}.sidebar-brand{padding:var(--space-lg);border-bottom:1px solid var(--border-subtle);align-items:center;gap:var(--space-md);display:flex}.sidebar-brand-icon{background:linear-gradient(135deg, var(--color-primary), var(--color-accent));border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex}.sidebar-brand-text h1{color:var(--text-primary);letter-spacing:-.02em;font-size:1rem;font-weight:700}.sidebar-brand-text span{color:var(--text-tertiary);font-size:.75rem}.sidebar-nav{padding:var(--space-md);gap:var(--space-xs);flex-direction:column;flex:1;display:flex;overflow-y:auto}.sidebar-section-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.08em;padding:var(--space-md) var(--space-sm) var(--space-xs);font-size:.7rem;font-weight:600}.sidebar-link{align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);cursor:pointer;text-align:left;background:0 0;border:none;width:100%;font-size:.9rem;font-weight:500;display:flex}.sidebar-link:hover{background:var(--bg-input);color:var(--text-primary);text-decoration:none}.sidebar-link.active{background:var(--color-primary-glow);color:var(--color-primary)}.sidebar-link-icon{flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:1.1rem;display:flex}.sidebar-footer{padding:var(--space-md);border-top:1px solid var(--border-subtle)}.sidebar-user{align-items:center;gap:var(--space-md);padding:var(--space-sm);border-radius:var(--radius-md);display:flex}.sidebar-avatar{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--color-primary-dim), var(--color-accent-dim));color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:.85rem;font-weight:600;display:flex}.sidebar-user-info{overflow:hidden}.sidebar-user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;font-weight:600;overflow:hidden}.sidebar-user-plan{color:var(--text-tertiary);font-size:.7rem}.page-header{margin-bottom:var(--space-xl)}.page-header h2{letter-spacing:-.03em;background:linear-gradient(135deg, var(--text-primary), var(--text-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.7rem;font-weight:800}.page-header p{color:var(--text-tertiary);margin-top:var(--space-xs);font-size:.9rem}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg);transition:all var(--transition-base)}.card:hover{border-color:var(--border-default);background:var(--bg-card-hover)}.card-header{margin-bottom:var(--space-md);justify-content:space-between;align-items:center;display:flex}.card-title{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;font-size:.8rem;font-weight:600}.card-value{letter-spacing:-.02em;font-size:2rem;font-weight:800;line-height:1.1}.card-subtitle{color:var(--text-tertiary);margin-top:var(--space-xs);font-size:.8rem}.stat-grid{gap:var(--space-md);margin-bottom:var(--space-xl);grid-template-columns:repeat(auto-fit,minmax(220px,1fr));display:grid}.stat-card{position:relative;overflow:hidden}.stat-card:after{content:"";background:radial-gradient(circle at 100% 0%, var(--stat-glow,#22d3ee14), transparent 70%);pointer-events:none;width:60%;height:100%;position:absolute;top:0;right:0}.stat-icon{border-radius:var(--radius-md);width:40px;height:40px;margin-bottom:var(--space-md);justify-content:center;align-items:center;font-size:1.3rem;display:flex}.stat-icon.cyan{color:var(--color-primary);background:#22d3ee1f}.stat-icon.green{background:var(--color-success-bg);color:var(--color-success)}.stat-icon.purple{color:var(--color-accent);background:#a78bfa1f}.stat-icon.amber{background:var(--color-warning-bg);color:var(--color-warning)}.stat-icon.red{background:var(--color-danger-bg);color:var(--color-danger)}.stat-icon.blue{background:var(--color-info-bg);color:var(--color-info)}.device-grid{gap:var(--space-md);grid-template-columns:repeat(auto-fill,minmax(340px,1fr));display:grid}.device-card{cursor:pointer;position:relative;overflow:hidden}.device-card:before{content:"";background:linear-gradient(90deg, var(--color-primary), var(--color-accent));opacity:0;height:3px;transition:opacity var(--transition-fast);position:absolute;top:0;left:0;right:0}.device-card:hover:before{opacity:1}.device-card-header{margin-bottom:var(--space-md);justify-content:space-between;align-items:center;display:flex}.device-card-name{font-size:1rem;font-weight:600}.device-card-id{font-family:var(--font-mono);color:var(--text-tertiary);margin-top:2px;font-size:.75rem}.device-card-stats{gap:var(--space-sm);margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--border-subtle);grid-template-columns:repeat(3,1fr);display:grid}.device-stat-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;font-size:.7rem}.device-stat-value{font-size:1.15rem;font-weight:700;font-family:var(--font-mono);margin-top:2px}.status-badge{border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.04em;align-items:center;gap:6px;padding:3px 10px;font-size:.72rem;font-weight:600;display:inline-flex}.status-badge.online{background:var(--color-success-bg);color:var(--color-success)}.status-badge.offline{background:var(--color-danger-bg);color:var(--color-danger)}.status-badge.trial{background:var(--color-warning-bg);color:var(--color-warning)}.status-dot{background:currentColor;border-radius:50%;width:6px;height:6px}.status-dot.pulse{animation:2s ease-in-out infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}.battery-gauge{background:var(--bg-input);border-radius:var(--radius-sm);border:1px solid var(--border-subtle);width:100%;height:24px;position:relative;overflow:hidden}.battery-fill{border-radius:var(--radius-sm);height:100%;transition:width var(--transition-slow);position:relative}.battery-fill.high{background:linear-gradient(90deg,#22d3ee,#34d399)}.battery-fill.medium{background:linear-gradient(90deg,#fbbf24,#f59e0b)}.battery-fill.low{background:linear-gradient(90deg,#f87171,#ef4444)}.battery-label{font-size:.75rem;font-weight:700;font-family:var(--font-mono);color:#fff;text-shadow:0 1px 3px #00000080;z-index:1;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.cell-grid{grid-template-columns:repeat(auto-fill,minmax(60px,1fr));gap:6px;display:grid}.cell-item{text-align:center;padding:var(--space-sm);border-radius:var(--radius-sm);background:var(--bg-input);border:1px solid var(--border-subtle);transition:all var(--transition-fast)}.cell-item.highest{border-color:var(--color-danger);background:var(--color-danger-bg)}.cell-item.lowest{border-color:var(--color-info);background:var(--color-info-bg)}.cell-index{color:var(--text-tertiary);text-transform:uppercase;font-size:.6rem;font-weight:600}.cell-voltage{font-size:.85rem;font-weight:700;font-family:var(--font-mono);margin-top:2px}.chart-container{width:100%;height:280px;position:relative}.grid-2{gap:var(--space-md);grid-template-columns:repeat(2,1fr);display:grid}.grid-3{gap:var(--space-md);grid-template-columns:repeat(3,1fr);display:grid}@media (max-width:1024px){.grid-2,.grid-3{grid-template-columns:1fr}}.btn{align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-family:var(--font-sans);cursor:pointer;transition:all var(--transition-fast);border:none;font-size:.85rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--color-primary), var(--color-primary-dim));color:var(--text-inverse)}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-ghost{background:var(--bg-input);color:var(--text-secondary);border:1px solid var(--border-subtle)}.btn-ghost:hover{background:var(--bg-elevated);color:var(--text-primary)}.input{width:100%;padding:var(--space-sm) var(--space-md);background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-sans);transition:border-color var(--transition-fast);font-size:.9rem}.input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow);outline:none}.login-page{z-index:1;justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative}.login-card{width:100%;max-width:420px;padding:var(--space-2xl)}.login-logo{align-items:center;gap:var(--space-md);margin-bottom:var(--space-2xl);justify-content:center;display:flex}.login-logo-icon{background:linear-gradient(135deg, var(--color-primary), var(--color-accent));border-radius:var(--radius-lg);justify-content:center;align-items:center;width:48px;height:48px;font-size:24px;display:flex}.login-logo h1{letter-spacing:-.03em;font-size:1.5rem;font-weight:800}.login-form{gap:var(--space-md);flex-direction:column;display:flex}.form-group{gap:var(--space-xs);flex-direction:column;display:flex}.form-label{color:var(--text-secondary);font-size:.8rem;font-weight:600}.login-divider{align-items:center;gap:var(--space-md);color:var(--text-tertiary);margin:var(--space-md) 0;font-size:.8rem;display:flex}.login-divider:before,.login-divider:after{content:"";background:var(--border-subtle);flex:1;height:1px}.spinner{border:3px solid var(--border-subtle);border-top-color:var(--color-primary);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-page{justify-content:center;align-items:center;gap:var(--space-md);flex-direction:column;min-height:100vh;display:flex}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.4s ease-out fadeIn}@keyframes slideInRight{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}.slide-in{animation:.3s ease-out slideInRight}