:root {
  --bg: #04070a;
  --bg-panel: rgba(10, 20, 14, 0.55);
  --phos: #51ff8b;          /* phosphor green */
  --phos-dim: #2f8f56;
  --phos-faint: #1c4a31;
  --amber: #ffcf6b;
  --red: #ff5f56;
  --ink: #bff7d2;
  --grid-line: rgba(81, 255, 139, 0.12);
  --mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
  --glow: 0 0 6px rgba(81, 255, 139, 0.45);
}

* { box-sizing: border-box; }

/* Must beat class-level `display` so the `hidden` attribute actually hides. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(120% 90% at 50% 0%, #0a1410 0%, var(--bg) 70%) fixed;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* CRT overlay: scanlines + vignette + subtle flicker */
.crt {
  position: fixed; inset: 0; pointer-events: none; z-index: 50;
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.16) 0 1px, transparent 1px 3px),
    radial-gradient(120% 120% at 50% 50%, transparent 60%, rgba(0,0,0,0.55) 100%);
  mix-blend-mode: multiply;
  animation: flicker 6s infinite steps(60);
}
@keyframes flicker { 0%,100%{opacity:.92} 48%{opacity:.97} 50%{opacity:.86} 52%{opacity:.95} }
@media (prefers-reduced-motion: reduce) { .crt { animation: none; } }

.screen { max-width: 1080px; margin: 0 auto; padding: 24px 18px 48px; }

/* ---- gate ---- */
.gate { max-width: 460px; margin: 8vh auto 0; }
.banner {
  color: var(--phos); text-shadow: var(--glow);
  font-size: 13px; line-height: 1.35; margin: 0 0 14px;
}
.gate-blurb { color: var(--phos-dim); margin: 0 0 20px; font-size: 12.5px; }
.auth { display: flex; flex-direction: column; gap: 14px; }
.auth-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 4px; }

/* ---- panels / layout ---- */
.panel {
  border: 1px solid var(--phos-faint);
  background: var(--bg-panel);
  border-radius: 4px;
  padding: 16px 18px;
  box-shadow: inset 0 0 32px rgba(0,0,0,0.45);
}
.panel-title {
  margin: 0 0 14px; font-size: 12px; font-weight: 600;
  color: var(--phos); text-shadow: var(--glow);
  text-transform: lowercase; letter-spacing: 0.06em;
  display: flex; align-items: center; gap: 8px;
}
.console { display: flex; flex-direction: column; gap: 16px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.panel.wide { grid-column: 1 / -1; }
@media (max-width: 760px) { .grid { grid-template-columns: 1fr; } }

/* ---- topbar ---- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; flex-wrap: wrap;
  border-bottom: 1px solid var(--phos-faint); padding-bottom: 10px;
}
.brand { color: var(--phos); text-shadow: var(--glow); font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--phos-dim); }
.clock { color: var(--ink); }
.who::before { content: "@"; opacity: .6; }

/* ---- status readout ---- */
.readout { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
.readout dt { color: var(--phos-dim); text-transform: uppercase; font-size: 11px; letter-spacing: 0.1em; align-self: center; }
.readout dd { margin: 0; color: var(--ink); }
.val { display: flex; align-items: center; gap: 8px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--phos-faint); box-shadow: none; flex: none; }
.val.up .dot { background: var(--phos); box-shadow: var(--glow); animation: pulse 2s infinite; }
.val.down .dot { background: #444; }
.val.warn .dot { background: var(--amber); box-shadow: 0 0 6px rgba(255,207,107,.5); }
.val.up .txt { color: var(--phos); }
.val.warn .txt { color: var(--amber); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.45} }

/* ---- controls ---- */
.control-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 4px; }
.mode-switch { display: flex; align-items: center; gap: 8px; margin: 16px 0 6px; }
.mode-label { color: var(--phos-dim); text-transform: uppercase; font-size: 11px; letter-spacing: 0.1em; }
.seg {
  font-family: var(--mono); font-size: 12px; cursor: pointer;
  background: transparent; color: var(--phos-dim);
  border: 1px solid var(--phos-faint); padding: 5px 12px;
}
.seg:first-of-type { border-radius: 3px 0 0 3px; }
.seg:last-of-type { border-radius: 0 3px 3px 0; border-left: none; }
.seg.active { background: rgba(81,255,139,0.14); color: var(--phos); text-shadow: var(--glow); }
.hint { color: var(--phos-dim); font-size: 11.5px; margin: 8px 0 0; }

/* ---- buttons ---- */
.btn {
  font-family: var(--mono); font-size: 13px; cursor: pointer;
  background: rgba(81,255,139,0.07); color: var(--ink);
  border: 1px solid var(--phos-dim); border-radius: 3px;
  padding: 8px 16px; transition: background .12s, box-shadow .12s, opacity .12s;
}
.btn:hover:not(:disabled) { background: rgba(81,255,139,0.16); box-shadow: var(--glow); }
.btn:focus-visible { outline: 2px solid var(--phos); outline-offset: 2px; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.primary { border-color: var(--phos); color: var(--phos); }
.btn.ghost { background: transparent; border-color: var(--phos-faint); color: var(--phos-dim); }
.btn.tiny { padding: 3px 9px; font-size: 11px; }
.btn.big { flex: 1; padding: 14px; font-size: 15px; letter-spacing: 0.05em; min-width: 120px; }
.btn.engage { border-color: var(--phos); color: var(--phos); }
.btn.engage:hover:not(:disabled) { background: rgba(81,255,139,0.2); }
.btn.release { border-color: var(--phos-faint); color: var(--phos-dim); }
.btn.is-active { background: rgba(81,255,139,0.22); color: var(--phos); text-shadow: var(--glow); box-shadow: var(--glow); }

/* ---- forms ---- */
.stack { display: flex; flex-direction: column; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field-row { display: flex; gap: 12px; flex-wrap: wrap; }
.field-row .field { flex: 1; min-width: 120px; }
.prompt { color: var(--phos-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; }
.prompt::before { content: "› "; color: var(--phos-faint); }
input, select {
  font-family: var(--mono); font-size: 13px;
  background: rgba(0,0,0,0.4); color: var(--ink);
  border: 1px solid var(--phos-faint); border-radius: 3px;
  padding: 8px 10px; width: 100%;
}
input:focus, select:focus { outline: none; border-color: var(--phos); box-shadow: var(--glow); }
input::placeholder { color: var(--phos-faint); }
select { appearance: none; cursor: pointer; }

.badge {
  font-size: 10px; padding: 2px 7px; border-radius: 2px; letter-spacing: 0.08em;
  border: 1px solid var(--phos-faint); color: var(--phos-dim); text-transform: uppercase;
}
.badge.ok { color: var(--phos); border-color: var(--phos-dim); }

/* ---- windows table ---- */
.table { border: 1px solid var(--phos-faint); border-radius: 3px; overflow: hidden; margin: 12px 0; }
.thead, .trow { display: grid; grid-template-columns: 1.4fr 1fr 1fr auto; gap: 10px; align-items: center; padding: 8px 10px; }
.thead { background: rgba(81,255,139,0.06); color: var(--phos-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; }
.trow { border-top: 1px solid var(--phos-faint); }
.trow input, .trow select { padding: 6px 8px; }
.tz-row { align-items: flex-end; }
.tz-row .field { flex: 1; }

/* ---- modal ---- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(2, 5, 3, 0.8); backdrop-filter: blur(2px); }
.modal-panel { position: relative; z-index: 1; width: min(560px, 100%); max-height: 88vh; overflow-y: auto; box-shadow: 0 0 0 1px var(--phos-faint), 0 24px 60px rgba(0,0,0,0.6), inset 0 0 32px rgba(0,0,0,0.45); }
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.modal-head .panel-title { margin-bottom: 8px; }
.modal-head .btn.tiny { line-height: 1; }

/* config button + its set/unset indicator */
#open-config { display: inline-flex; align-items: center; }
.cfg-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--phos-faint); margin-left: 7px; }
.cfg-dot.set { background: var(--phos); box-shadow: var(--glow); }

/* ---- log ---- */
.log {
  font-size: 12px; line-height: 1.6; color: var(--phos-dim);
  height: 168px; overflow-y: auto; background: rgba(0,0,0,0.35);
  border: 1px solid var(--phos-faint); border-radius: 3px; padding: 10px 12px;
  white-space: pre-wrap; word-break: break-word;
}
.log .t { color: var(--phos-faint); }
.log .ok { color: var(--phos); }
.log .err { color: var(--red); }
.log .warn { color: var(--amber); }

/* ---- misc ---- */
.msg { min-height: 16px; margin: 2px 0 0; font-size: 12px; color: var(--phos-dim); }
.msg.err { color: var(--red); }
.msg.ok { color: var(--phos); }
.footstrip {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  color: var(--phos-faint); font-size: 11px; border-top: 1px solid var(--phos-faint); padding-top: 10px;
}
.conn.live { color: var(--phos-dim); }
.conn.dead { color: var(--red); }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--phos-faint); border-radius: 4px; }
::selection { background: rgba(81,255,139,0.3); color: #fff; }