:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #273449;--text: #e2e8f0;--muted: #94a3b8;--primary: #3b82f6;--primary-hover: #2563eb;--danger: #ef4444;--success: #22c55e;--warning: #f59e0b;--border: #334155}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}button{cursor:pointer;border:none;border-radius:6px;padding:8px 14px;font-size:14px;background:var(--primary);color:#fff;transition:background .15s}button:hover{background:var(--primary-hover)}button.secondary{background:var(--panel-2);color:var(--text)}button.danger{background:var(--danger)}button.ghost{background:transparent;color:var(--muted)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{width:100%;padding:8px 10px;border-radius:6px;border:1px solid var(--border);background:var(--panel);color:var(--text);font-size:14px}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);font-size:14px}th{color:var(--muted);font-weight:600}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge.online{background:#22c55e26;color:var(--success)}.badge.offline{background:#ef444426;color:var(--danger)}.badge.never{background:#94a3b826;color:var(--muted)}.row{display:flex;gap:12px;align-items:center}.row.between{justify-content:space-between}.grid{display:grid;gap:16px}.muted{color:var(--muted)}.spacer{flex:1}.app-shell{display:flex;min-height:100vh}.sidebar{width:230px;background:var(--panel);border-right:1px solid var(--border);padding:20px 14px;display:flex;flex-direction:column;gap:4px}.sidebar .logo{font-weight:700;font-size:18px;padding:6px 10px 18px}.sidebar a{padding:10px 12px;border-radius:8px;color:var(--text);display:block}.sidebar a.active,.sidebar a:hover{background:var(--panel-2)}.content{flex:1;padding:28px 32px;overflow:auto}.page-title{font-size:22px;font-weight:700;margin:0 0 18px}.login-wrap{display:grid;place-items:center;min-height:100vh}.login-card{width:360px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:grid;place-items:center;z-index:50}.modal{width:460px;max-height:90vh;overflow:auto}.error{color:var(--danger);font-size:13px;margin-top:8px}.success-text{color:var(--success);font-size:13px}.pairing-code{font-family:monospace;font-size:20px;letter-spacing:3px;background:var(--panel-2);padding:6px 12px;border-radius:6px}