:root{--primary: #059669;--primary-dark: #047857;--primary-light: #d1fae5;--accent: #d97706;--bg: #f3f4f6;--surface: #ffffff;--text-main: #111827;--text-sec: #6b7280;--border: #e5e7eb;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--radius: 16px}*{box-sizing:border-box}body{margin:0;font-family:Kanit,sans-serif;background:var(--bg);color:var(--text-main);min-height:100vh}#app{min-height:100vh}.app-layout{display:grid;grid-template-columns:1fr;max-width:1200px;margin:0 auto;width:100%}@media(min-width:768px){.app-layout{grid-template-columns:240px 1fr;min-height:100vh}}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:20px;position:sticky;top:0;display:flex;flex-direction:column;z-index:50}@media(max-width:767px){.sidebar{position:fixed;inset:auto 0 0;flex-direction:row;justify-content:space-around;padding:10px;border-top:1px solid var(--border);box-shadow:0 -4px 6px -1px #0000000d}}.brand{padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--border)}.brand-title{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:600;color:var(--primary-dark)}.node-subtitle{font-size:.85rem;color:var(--text-sec);margin-top:4px;padding-left:30px;font-weight:400}@media(max-width:767px){.brand{display:none}}.nav-item{display:flex;flex-direction:column;gap:4px;align-items:center;padding:8px 12px;margin-bottom:4px;border-radius:12px;color:var(--text-sec);text-decoration:none;cursor:pointer;transition:.2s;font-weight:500;text-align:center;background:transparent;border:none}@media(min-width:768px){.nav-item{flex-direction:row;font-size:1rem;text-align:left}.nav-item i{width:24px}}.nav-item:hover{background:var(--primary-light);color:var(--primary-dark)}.nav-item.active{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}.nav-txt{font-size:.75rem}@media(min-width:768px){.nav-txt{font-size:1rem}.nav-sub{font-size:.8rem;opacity:.8}}.main-content{padding:20px 20px 80px;overflow-y:auto}@media(min-width:768px){.main-content{padding:40px}}.top-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;background:var(--surface);padding:15px 20px;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--border)}.page-title h1{font-size:1.5rem;font-weight:600;margin:0;line-height:1.2}.page-title p{margin:0;font-size:.85rem;color:var(--text-sec)}.pill{padding:6px 12px;border-radius:20px;font-size:.85rem;font-weight:500;display:flex;align-items:center;gap:6px;background:#f1f5f9;color:var(--text-sec)}.pill.online{background:#ecfdf5;color:var(--primary);border:1px solid #a7f3d0}.sys-bar-modern{display:flex;gap:20px;overflow-x:auto;padding:15px;margin-bottom:20px;background:#fff;border-radius:12px;border:1px solid var(--border);scrollbar-width:none}.sys-info-item{display:flex;flex-direction:column;min-width:80px}.sys-info-lbl{font-size:.7rem;text-transform:uppercase;color:var(--text-sec);letter-spacing:.5px}.sys-info-val{font-size:.95rem;font-weight:600;color:var(--text-main)}.node-grid{display:grid;gap:20px;grid-template-columns:1fr}.gateway-card{background:linear-gradient(135deg,#ecfdf5,#f0f9ff);border:1px solid 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1fr;gap:8px;margin-top:10px}.nd-item{background:#f9fafb;padding:8px;border-radius:8px;text-align:center}.nd-val{font-size:1.2rem;font-weight:600;color:var(--text-main)}.nd-lbl{font-size:.75rem;color:var(--text-sec)}.node-footer{border-top:1px solid var(--border);padding-top:10px;font-size:.8rem;color:var(--text-sec);display:flex;justify-content:space-between}.card{background:#fff;padding:20px;border-radius:12px;border:1px solid var(--border);box-shadow:var(--shadow-sm)}.chart-card{background:linear-gradient(180deg,#fff,#f8fafc)}.chart-summary{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}.chart-summary .pill{background:#eff6ff;color:#1d4ed8}.view-sec.hidden{display:none}.form-grp{margin-bottom:20px}.form-lbl{font-weight:500;margin-bottom:8px;display:block;color:var(--text-sec)}.form-inp{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:1rem}.btn-save{background:var(--primary);color:#fff;border:none;padding:10px 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#0003;z-index:4}.map-node:active{cursor:grabbing}.mn-status{position:absolute;top:-8px;right:-8px;width:12px;height:12px;border-radius:50%;border:2px solid white;box-shadow:0 2px 4px #0003}.mn-rssi{position:absolute;top:-8px;left:-8px;width:20px;height:20px;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:10px;border:2px solid white;box-shadow:0 2px 4px #00000026}.map-legend{position:fixed;bottom:20px;right:20px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:16px;border-radius:12px;border:1px solid rgba(229,231,235,.8);box-shadow:0 4px 12px #00000026;font-size:.85rem;z-index:100;max-width:300px;animation:slideIn .3s ease-out}@keyframes slideIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.legend-header{display:flex;align-items:center;gap:8px;font-weight:600;margin-bottom:12px;color:var(--text-main);padding-bottom:8px;border-bottom:1px solid var(--border)}.legend-section{margin-bottom:12px}.legend-section:last-child{margin-bottom:0}.legend-title{font-size:.75rem;text-transform:uppercase;color:var(--text-sec);margin-bottom:8px;font-weight:600;letter-spacing:.5px}.legend-item{display:flex;align-items:center;gap:10px;margin-bottom:6px;font-size:.85rem;color:var(--text-main)}.legend-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.legend-dot.online{background:#10b981}.legend-dot.warning{background:#f59e0b}.legend-dot.offline{background:#ef4444}.legend-rssi{width:20px;height:10px;border-radius:4px;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:10px}.legend-rssi.strong{background:#10b981}.legend-rssi.medium{background:#f59e0b}.legend-rssi.weak{background:#ef4444}.legend-line{width:30px;height:2px;background:#3b82f6;flex-shrink:0}.btn-ghost.active{background:var(--primary);color:#fff;border-color:var(--primary-dark)}.settings-section{margin-bottom:20px}.settings-card{background:#f9fafb;padding:16px;border-radius:12px;border:1px solid #e5e7eb}.diagnostics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.diagnostic-card{padding:16px;border-radius:12px;border:1px solid;background:#fff}.diagnostic-card h4{margin:0 0 8px;font-size:.75rem;text-transform:uppercase;letter-spacing:.5px;font-weight:600}.diagnostic-value{font-size:1.1rem;font-weight:600}.diagnostic-sub{font-size:.85rem;color:#64748b;margin-top:4px}.api-key-card{background:#f9fafb;padding:12px;border-radius:8px;border:1px solid #e5e7eb;display:flex;justify-content:space-between;align-items:center;gap:12}.api-key-info{flex:1}.api-key-name{font-weight:600;font-size:.95rem;margin-bottom:4px}.api-key-value{font-family:Courier New,monospace;font-size:.8rem;color:#6b7280;background:#f3f4f6;padding:4px 8px;border-radius:4px;display:inline-block;-webkit-user-select:all;user-select:all}.api-key-meta{font-size:.75rem;color:#9ca3af;margin-top:4px}.notification-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}@media(prefers-color-scheme:dark){.app-layout{background:#1f2937}.sidebar{background:#1f2937;border-right-color:#374151}.main-content{background:#111827}.card{background:#1f2937;border-color:#374151;color:#f3f4f6}.brand-title,.page-title h1,h3,h4{color:#f3f4f6}.node-data-grid{background:#1f2937}.nd-item{background:#374151}.form-inp{background:#374151;border-color:#4b5563;color:#f3f4f6}.form-inp:focus{border-color:var(--primary)}.btn-save{background:var(--primary)}.sys-info-val{color:#f3f4f6}}