:root{--navy:#1b2a4a;--navy-light:#2a3f6a;--navy-dark:#0f1a30;--gold:#c9953c;--gold-light:#e5b96a;--gold-dark:#a67b2e;--gold-dim:#c9953c26;--white:#fff;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-400:#94a3b8;--gray-500:#64748b;--gray-600:#475569;--gray-700:#334155;--gray-800:#1e293b;--green:#10b981;--green-light:#d1fae5;--red:#ef4444;--red-light:#fee2e2;--yellow:#f59e0b;--yellow-light:#fef3c7;--blue:#3b82f6;--blue-light:#dbeafe;--radius:12px;--radius-lg:16px;--radius-xl:20px;--shadow-sm:0 1px 2px #0000000d;--shadow:0 1px 3px #0000001a, 0 1px 2px #0000000f;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a, 0 10px 10px -5px #0000000a;--transition:.2s ease}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--gray-50);color:var(--gray-800);-webkit-font-smoothing:antialiased;font-family:Atkinson 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var(--transition);padding:18px}.device-card:hover{box-shadow:var(--shadow)}.device-card-header{align-items:center;gap:12px;margin-bottom:16px;display:flex}.device-icon{border-radius:12px;justify-content:center;align-items:center;width:42px;height:42px;font-size:16px;display:flex}.device-icon.contact{background:var(--blue-light);color:var(--blue)}.device-icon.leak{color:#0284c7;background:#f0f9ff}.device-icon.motion{color:#c2410c;background:#fff7ed}.device-icon.environmental{background:var(--green-light);color:var(--green)}.device-name{font-size:14px;font-weight:700}.device-meta{color:var(--gray-500);font-size:12px}.device-readings{flex-direction:column;gap:8px;display:flex}.reading-row{justify-content:space-between;align-items:center;font-size:13px;display:flex}.reading-label{color:var(--gray-600)}.reading-value{font-family:JetBrains Mono,monospace;font-size:13px;font-weight:700}.ec-list{flex-direction:column;gap:12px;display:flex}.ec-item{border:1px solid 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.form-input{padding-left:40px;font-size:14px}.detail-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.detail-grid.triple{grid-template-columns:1fr 1fr 1fr}.detail-field label{text-transform:uppercase;letter-spacing:.8px;color:var(--gray-500);margin-bottom:6px;font-size:11px;font-weight:700;display:block}.detail-field .value{color:var(--gray-800);font-size:15px;font-weight:400}.section-gap{margin-top:24px}.activity-timeline{flex-direction:column;gap:0;display:flex}.activity-entry{border-bottom:1px solid var(--gray-100);align-items:flex-start;gap:14px;padding:16px 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Mono,monospace;font-size:12px}.activity-meta{color:var(--gray-500);margin-top:2px;font-size:12px}.activity-changes{flex-direction:column;gap:4px;margin-top:8px;display:flex}.change-row{background:var(--gray-50);border-radius:6px;align-items:center;gap:6px;padding:4px 10px;font-family:JetBrains Mono,monospace;font-size:12px;display:flex}.change-field{color:var(--gray-700);font-weight:700}.change-old{color:var(--red);text-decoration:line-through}.change-arrow{color:var(--gray-400);font-size:10px}.change-new{color:var(--green);font-weight:700}.filter-bar{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.filter-bar select,.filter-bar input{border:2px solid var(--gray-200);border-radius:var(--radius);color:var(--gray-700);background:var(--white);transition:border-color var(--transition);outline:none;padding:8px 14px;font-family:inherit;font-size:13px}.filter-bar select:focus,.filter-bar input:focus{border-color:var(--gold)}.load-more-btn{background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius);width:100%;color:var(--gray-600);cursor:pointer;transition:all var(--transition);margin-top:8px;padding:12px;font-family:inherit;font-size:13px;font-weight:700;display:block}.load-more-btn:hover{background:var(--gray-100);color:var(--navy)}@media (width<=768px){.sidebar{display:none}.main-content{margin-left:0;padding:20px}.detail-grid,.ec-form-row{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}.filter-bar{flex-direction:column}.filter-bar select,.filter-bar input{width:100%}}