:root { --bg:#0f172a; --panel:#111827; --muted:#94a3b8; --text:#e5e7eb; --accent:#22d3ee; --accent2:#a78bfa; --danger:#ef4444; --ok:#10b981; }
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; background: var(--bg); color: var(--text); font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji"; }
header { padding: 16px 20px; border-bottom: 1px solid #1f2937; background: #0b1220; position: sticky; top: 0; z-index: 10; }
header h1 { margin: 0; font-size: 18px; font-weight: 600; letter-spacing: .2px; }
.toolbar select { max-width: 220px; }
.toolbar { margin-top: 8px; display: flex; gap: 8px; }
.toolbar #btnClear { width: auto; padding-inline: 12px; }
.container { display: grid; grid-template-columns: 320px 1fr; min-height: calc(100vh - 60px); }
.sidebar { border-right: 1px solid #1f2937; padding: 16px; background: var(--panel); }
.main { padding: 16px; }
.section { margin-bottom: 16px; }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .08em; }
select, input[type="file"], button, textarea { width: 100%; background: #0b1220; color: var(--text); border: 1px solid #1f2937; border-radius: 8px; padding: 10px 12px; font-size: 14px; }
select:focus, input[type="file"]:focus, button:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button { cursor: pointer; background: linear-gradient(135deg, rgba(34,211,238,.25), rgba(167,139,250,.25)); border-color: #334155; }
button:hover { background: linear-gradient(135deg, rgba(34,211,238,.35), rgba(167,139,250,.35)); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.help { color: var(--muted); font-size: 12px; margin-top: 6px; }
.error { color: var(--danger); font-size: 12px; margin-top: 6px; }
.success { color: var(--ok); font-size: 12px; margin-top: 6px; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; background: #0b1220; border: 1px solid #1f2937; color: var(--muted); }
.port { border: 1px solid #1f2937; background: #0b1220; border-radius: 10px; margin-bottom: 12px; overflow: hidden; }
.port-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: #0f172a; }
.port-title { font-weight: 600; font-size: 14px; }
.combos { padding: 10px 12px; display: grid; gap: 8px; }
.combo { display: grid; grid-template-columns: 28px 1fr auto auto; gap: 8px; align-items: center; padding: 8px; border: 1px solid #1f2937; border-radius: 8px; background: #0b1220; }
.combo-pad { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
.combo-mode { font-size: 12px; color: var(--muted); }
.toolbar { display: flex; gap: 8px; }
.summary { border: 1px solid #1f2937; background: #0b1220; padding: 12px; border-radius: 10px; }
.summary-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.summary-table th, .summary-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #1f2937; }
.summary-table th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.summary-table .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
pre { background: #0b1220; border: 1px solid #1f2937; padding: 10px; border-radius: 8px; overflow: auto; }
.hidden { display: none; }
.footer { padding: 12px 16px; border-top: 1px solid #1f2937; color: var(--muted); font-size: 12px; }
.footer a { color: var(--accent); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.unavail-list { padding: 10px 12px; display: grid; gap: 6px; }
.unavail-item { display: flex; align-items: center; justify-content: space-between; padding: 8px; border: 1px solid #1f2937; border-radius: 8px; background: #0b1220; }
.combo.disabled { opacity: .5; pointer-events: none; }
.pill-danger { background: rgba(239, 68, 68, .12); border-color: rgba(239, 68, 68, .35); color: #fca5a5; }
@media (max-width: 900px) {
  .container { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid #1f2937; }
}