*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0e14;--bg-secondary: #1a1f2e;--bg-card: #1e2433;--text-primary: #e6edf3;--text-secondary: #8b949e;--border-color: #30363d;--accent-blue: #58a6ff;--accent-green: #3fb950;--accent-red: #f85149;--accent-yellow: #d29922;--accent-purple: #a371f7;--admin-down-bg: #21262d;--admin-down-border: #484f58}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}.app-container{max-width:1600px;margin:0 auto;padding:20px}.app-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;margin-bottom:20px}.app-title{font-size:1.5rem;font-weight:600;color:var(--text-primary)}.hostname{color:var(--accent-blue);font-family:SF Mono,Fira Code,monospace}.connection-status{display:flex;align-items:center;gap:8px;font-size:.875rem}.status-dot{width:10px;height:10px;border-radius:50%;background:var(--accent-green);animation:pulse 2s infinite}.status-dot.disconnected{background:var(--accent-red);animation:none}.status-dot.reconnecting{background:var(--accent-yellow);animation:blink .5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.port-grid-container{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;padding:20px;margin-bottom:20px}.port-grid-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.port-grid-title{font-size:1.125rem;font-weight:600}.port-grid-stats{color:var(--text-secondary);font-size:.875rem}.port-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:12px}.port-card{background:var(--bg-card);border:2px solid var(--border-color);border-radius:6px;padding:12px;cursor:pointer;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease;position:relative;min-height:90px;display:flex;flex-direction:column;gap:6px}.port-card:hover{border-color:var(--accent-blue);transform:translateY(-2px);box-shadow:0 4px 12px #0000004d}.port-card.admin-down{background:var(--admin-down-bg);border-color:var(--admin-down-border);border-width:3px;opacity:.6}.port-card.admin-down:hover{border-color:var(--accent-red);opacity:.85}.port-card-header{display:flex;justify-content:space-between;align-items:flex-start}.port-name{font-size:.6875rem;font-family:SF Mono,Fira Code,monospace;color:var(--text-primary);word-break:break-all;line-height:1.2}.port-description{font-size:.625rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.port-vlans{display:flex;flex-wrap:wrap;gap:3px}.vlan-badge{font-size:.5rem;padding:1px 4px;border-radius:2px;font-weight:700;color:#000;line-height:1.4}.port-card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto}.port-status{font-size:.5625rem;padding:2px 5px;border-radius:3px;font-weight:600;text-transform:uppercase}.port-status.up{background:#3fb95033;color:var(--accent-green)}.port-status.down{background:#f8514933;color:var(--accent-red)}.poe-indicator{position:absolute;top:5px;right:5px;width:14px;height:14px;color:var(--accent-yellow);filter:drop-shadow(0 0 3px rgba(210,153,34,.6))}.lag-indicator{color:var(--accent-purple);display:inline-flex;align-items:center}.tooltip{position:fixed;background:var(--bg-secondary);border:1px solid var(--accent-blue);border-radius:6px;padding:12px;z-index:1000;width:280px;box-shadow:0 8px 24px #00000080;pointer-events:none}.tooltip-title{font-weight:700;margin-bottom:10px;color:var(--accent-blue);font-family:SF Mono,Fira Code,monospace;font-size:.8125rem;border-bottom:1px solid var(--border-color);padding-bottom:6px}.tooltip-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:.75rem;margin-bottom:5px}.tooltip-label{color:var(--text-secondary);flex-shrink:0}.tooltip-value{color:var(--text-primary);font-family:SF Mono,Fira Code,monospace;font-size:.6875rem;text-align:right;word-break:break-all}.legend-container{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;padding:16px 20px}.legend-title{font-size:.875rem;font-weight:600;margin-bottom:12px;color:var(--text-secondary)}.legend-items{display:flex;flex-wrap:wrap;gap:16px}.legend-item{display:flex;align-items:center;gap:8px}.legend-color{width:20px;height:20px;border-radius:4px;border:1px solid var(--border-color);flex-shrink:0}.legend-label{font-size:.8125rem}.legend-vlan-id{color:var(--text-secondary);font-size:.6875rem;font-family:SF Mono,Fira Code,monospace;margin-left:4px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state-icon{font-size:3rem;margin-bottom:16px}.empty-state-title{font-size:1.25rem;margin-bottom:8px;color:var(--text-primary)}