:root{--bg:#07101d;--surface:#0d1929;--surface2:#111f32;--line:#22334a;--text:#e7edf7;--muted:#8fa1ba;--cyan:#22d3ee;--blue:#3b82f6;--green:#34d399;--yellow:#fbbf24;--red:#fb7185;--shadow:0 16px 50px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;background:radial-gradient(circle at 80% -10%,#12335a 0,transparent 28%),var(--bg);color:var(--text);font:14px/1.5 Inter,Segoe UI,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}.muted,.hint{color:var(--muted)}code{padding:2px 7px;border:1px solid var(--line);border-radius:6px;background:#07111e;color:#a5f3fc}.topbar{height:68px;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:rgba(7,16,29,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.brand,.login-brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;letter-spacing:.05em}.brand small,.login-brand 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8px;border-radius:999px;font-size:10px;font-weight:800;letter-spacing:.05em;background:#1c2b40;color:#b9c7da}.tag.info{background:rgba(34,211,238,.12);color:var(--cyan)}.tag.success{background:rgba(52,211,153,.12);color:var(--green)}.tag.warning{background:rgba(251,191,36,.12);color:var(--yellow)}.tag.danger{background:rgba(251,113,133,.12);color:var(--red)}.tag.large{padding:8px 13px}.io-grid{display:grid;grid-template-columns:repeat(8,minmax(105px,1fr));gap:9px}.io-card{position:relative;display:grid;min-height:95px;padding:12px;text-align:left;border:1px solid var(--line);border-radius:10px;background:#0a1625;color:var(--text)}.io-card:hover{border-color:#3a526f;transform:translateY(-1px)}.io-card .io-index{color:#60738f;font:700 10px Consolas,monospace}.io-card .io-led{position:absolute;top:12px;right:12px;width:9px;height:9px;border-radius:50%;background:#35445a}.io-card strong{margin-top:auto}.io-card 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rgba(0,0,0,.45)}.login-brand{margin-bottom:25px}.demo-pill{display:inline-block;padding:5px 8px;border:1px solid #17536b;border-radius:999px;color:var(--cyan);font-size:9px;font-weight:800;letter-spacing:.12em}.login-card h1{margin:18px 0 4px}.login-form{display:grid;gap:14px;margin-top:20px}.credentials{text-align:center;color:var(--muted);font-size:12px}
@media(max-width:1180px){.metric-grid{grid-template-columns:repeat(2,1fr)}.io-grid{grid-template-columns:repeat(4,1fr)}.fault-columns{grid-template-columns:1fr}.ladder-rung{grid-template-columns:50px 35px 1fr 70px 1fr}.form-grid.four{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.desktop-only,.device-card,.sidebar-foot{display:none}.topbar{padding:0 13px}.user-chip{display:none}.app-shell{display:block}.sidebar{position:sticky;top:68px;z-index:15;width:100%;height:auto;padding:7px;overflow:auto;border-right:0;border-bottom:1px solid var(--line)}nav{display:flex;min-width:max-content}nav a{padding:8px 10px;font-size:12px}.content{padding:18px 13px 40px}.demo-banner{align-items:flex-start;flex-direction:column;gap:2px}.page-heading{align-items:flex-start;flex-direction:column}.metric-grid,.metric-grid.compact,.two-columns,.form-grid,.form-grid.four{grid-template-columns:1fr}.io-grid{grid-template-columns:repeat(2,1fr)}.check-grid{grid-template-columns:repeat(2,1fr)}.ladder-rung{grid-template-columns:42px 28px 1fr 70px}.ladder-rung label:nth-of-type(n+4){grid-column:span 2}.event-list>div{grid-template-columns:70px 72px 1fr}.filter-row{grid-template-columns:1fr}.button-row{flex-wrap:wrap}.mini-io{grid-template-columns:repeat(8,1fr)}}