:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #334155;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--green: #4ade80;--red: #f87171;--amber: #fbbf24;--border: #475569}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px}#root{height:100vh;display:flex;flex-direction:column}.app-layout{display:grid;grid-template-columns:340px 1fr;grid-template-rows:auto 1fr;height:100vh;gap:0}.app-header{grid-column:1 / -1;background:var(--panel);border-bottom:1px solid var(--border);padding:10px 16px;display:flex;align-items:center;gap:16px}.app-header h1{margin:0;font-size:16px;font-weight:600}.app-header .stats{margin-left:auto;display:flex;gap:16px;color:var(--muted);font-size:13px}.app-header .stats span b{color:var(--text)}.sidebar{background:var(--panel);border-right:1px solid var(--border);overflow-y:auto;display:flex;flex-direction:column}.sidebar-section{padding:10px 12px;border-bottom:1px solid var(--border)}.sidebar-section h3{margin:0 0 8px;font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}.kpi-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.kpi{background:var(--panel-2);border-radius:8px;padding:8px 10px}.kpi .v{font-size:22px;font-weight:700;line-height:1.2}.kpi .l{font-size:11px;color:var(--muted)}.kpi.green .v{color:var(--green)}.kpi.red .v{color:var(--red)}.kpi.amber .v{color:var(--amber)}.vehicle-list{list-style:none;margin:0;padding:0}.vehicle-item{display:flex;align-items:center;gap:8px;padding:6px 10px;cursor:pointer;border-bottom:1px solid var(--panel-2)}.vehicle-item:hover{background:var(--panel-2)}.vehicle-item.selected{background:#38bdf826}.vehicle-item .dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.vehicle-item .dot.online{background:var(--green)}.vehicle-item .dot.offline{background:var(--red)}.vehicle-item .dot.alert{background:var(--amber)}.vehicle-item .plate{font-weight:600}.vehicle-item .meta{color:var(--muted);font-size:12px;margin-left:auto}.map-wrap{position:relative;height:100%}.map-wrap .leaflet-container{height:100%;width:100%}.alert-badge{display:inline-block;padding:1px 6px;border-radius:4px;font-size:10px;font-weight:600;margin-left:4px}.alert-badge.critical{background:#f8717140;color:var(--red)}.alert-badge.warning{background:#fbbf2440;color:var(--amber)}.alert-badge.info{background:#94a3b840;color:var(--muted)}.tabs{display:flex;gap:4px;padding:8px 10px;border-bottom:1px solid var(--border)}.tab{padding:6px 10px;background:var(--panel-2);border:0;border-radius:6px;color:var(--muted);cursor:pointer;font-size:13px}.tab.active{background:var(--accent);color:#001;font-weight:600}.table{width:100%;border-collapse:collapse;font-size:12px}.table th,.table td{padding:6px 8px;text-align:left;border-bottom:1px solid var(--panel-2)}.table th{color:var(--muted);font-weight:500}.report-controls{display:flex;gap:8px;padding:10px;align-items:center;flex-wrap:wrap}.report-controls input,.report-controls select,.report-controls button{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:12px}.report-controls button{background:var(--accent);color:#001;font-weight:600;cursor:pointer}.upload-form{display:flex;gap:8px;align-items:center}.upload-form input[type=file]{color:var(--muted)}