:root{--giga-red:#d71920;--giga-dark:#202124}body{background:#f4f6f8;color:#212529}.navbar-brand .text-danger{color:var(--giga-red)!important}.card{border:0;border-radius:14px}.metric-card{min-height:120px}.metric-value{font-size:2rem;font-weight:700}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:6px}.status-online{background:#198754}.status-warning{background:#ffc107}.status-fault{background:#dc3545}.status-offline{background:#6c757d}.map-card{height:calc(100vh - 150px);min-height:520px}.map-canvas{height:100%;border-radius:14px}.table td,.table th{vertical-align:middle}.device-hero{background:linear-gradient(135deg,#fff 0%,#f5f5f5 75%,#fbe8e9 100%)}.chart-wrap{height:310px}.command-grid .btn{min-height:52px}.small-label{text-transform:uppercase;letter-spacing:.07em;font-size:.72rem;color:#6c757d}.value-lg{font-size:1.6rem;font-weight:700}.brand-rule{height:4px;background:linear-gradient(90deg,var(--giga-red),transparent);border-radius:4px}.login-shell{min-height:100vh;background:linear-gradient(135deg,#fff 55%,#fbe7e8)}