:root { --bg:#0d1117; --panel:#161b22; --line:#30363d; --text:#e6edf3; --muted:#8b949e; --accent:#2f81f7; --err:#f85149; }
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
body { overflow: hidden; display: flex; flex-direction: column; }
[hidden] { display: none !important; }
.bar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.logo { font-weight: 800; letter-spacing: 2px; color: var(--accent); }
.sub { color: var(--muted); }
.target { margin-left: auto; color: var(--muted); font-family: ui-monospace, monospace; font-size: 13px; }
.card { margin: 8vh auto 0; width: min(380px, calc(100% - 32px)); background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
.card h1 { margin: 0 0 4px; font-size: 20px; }
.muted { color: var(--muted); margin: 0 0 16px; font-family: ui-monospace, monospace; font-size: 13px; }
label { display: block; margin: 12px 0 4px; color: var(--muted); font-size: 13px; }
input { width: 100%; padding: 9px 10px; background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 6px; font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
button { margin-top: 18px; width: 100%; padding: 10px; background: var(--accent); color: #fff; border: 0; border-radius: 6px; font: inherit; font-weight: 600; cursor: pointer; }
button:disabled { opacity: .6; cursor: default; }
.error { margin: 14px 0 0; color: var(--err); }
.term { flex: 1; min-height: 0; padding: 8px; background: #000; }
.term .xterm { height: 100%; }
.status { padding: 10px 16px; background: var(--panel); border-top: 1px solid var(--line); color: var(--muted); }
.status.bad { color: var(--err); }