:root {
  --bg: #04060a;
  --hud-bg: rgba(8, 16, 24, 0.78);
  --hud-border: rgba(80, 200, 240, 0.4);
  --hud-text: #c8e8ff;
  --hud-amber: #ffb74d;
  --hud-teal: #4dd0e1;
  --danger: #ff5a5a;
  --ok: #66ff99;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--hud-text); overflow: hidden; height: 100vh; }

/* ── Login screen ─────────────────────────────────────────── */
.login {
  display: flex; align-items: center; justify-content: center; height: 100vh;
  background: radial-gradient(ellipse at center, #112030 0%, #04060a 70%);
}
.login-box {
  padding: 32px 40px; border: 1px solid var(--hud-border);
  background: var(--hud-bg); border-radius: 4px; min-width: 340px;
  box-shadow: 0 0 40px rgba(77, 208, 225, 0.15);
}
.login-box h1 { margin: 0 0 4px; letter-spacing: 6px; font-weight: 300; font-size: 32px; }
.login-box .muted { color: #6080a0; margin: 0 0 18px; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; }
.login-box input {
  width: 100%; padding: 12px; background: transparent;
  border: 1px solid var(--hud-border); color: var(--hud-text);
  font-size: 16px; font-family: ui-monospace, monospace; letter-spacing: 2px;
}
.login-box input:focus { outline: none; border-color: var(--hud-teal); box-shadow: 0 0 12px rgba(77,208,225,.3); }
.login-box button {
  width: 100%; margin-top: 14px; padding: 12px; background: var(--hud-teal);
  color: #04060a; border: 0; font-weight: 700; cursor: pointer;
  letter-spacing: 2px; text-transform: uppercase; transition: filter .15s;
}
.login-box button:hover { filter: brightness(1.15); }
.err { color: var(--danger); margin-top: 10px; font-size: 13px; }

/* ── Scene ─────────────────────────────────────────────────── */
.scene #scene-stage { position: absolute; inset: 56px 60px 56px 0; }
#bg { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.85) contrast(1.05); }
#stations { position: absolute; inset: 0; }

.station {
  position: absolute; width: 120px; height: 160px; padding: 0;
  background: transparent; border: 1px solid transparent; cursor: pointer;
  color: inherit; transition: border-color .2s, transform .2s, box-shadow .2s;
}
.station:hover, .station:focus {
  border-color: var(--hud-teal); transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(77,208,225,.4); outline: none;
}
.station img { width: 100%; height: 110px; object-fit: contain; }
.station .name {
  display: block; font-size: 11px; letter-spacing: 2px;
  text-transform: uppercase; margin-top: 4px;
}
.station .light { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #555; margin-right: 6px; vertical-align: middle; }
.station .light.idle    { background: #555; }
.station .light.working { background: var(--hud-amber); animation: pulse 1.2s infinite; box-shadow: 0 0 8px var(--hud-amber); }
.station .light.error   { background: var(--danger); box-shadow: 0 0 8px var(--danger); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ── HUD bars ──────────────────────────────────────────────── */
.hud-bar {
  position: absolute; left: 0; right: 0; height: 48px;
  background: var(--hud-bg); border: 1px solid var(--hud-border);
  display: flex; align-items: center; padding: 0 24px; gap: 36px;
  font-family: ui-monospace, monospace; font-size: 12px; letter-spacing: 1px;
}
#top-hud { top: 0; border-width: 0 0 1px 0; }
#event-ticker { bottom: 0; border-width: 1px 0 0 0; overflow: hidden; }
.hud-cell { color: var(--hud-text); }

/* ── Right tab strip ───────────────────────────────────────── */
#right-tabs {
  position: absolute; right: 0; top: 56px; bottom: 56px; width: 60px;
  background: var(--hud-bg); border-left: 1px solid var(--hud-border);
  display: flex; flex-direction: column;
}
#right-tabs button {
  flex: 1; background: transparent; color: var(--hud-text);
  border: 0; border-bottom: 1px solid #1a2530; cursor: pointer;
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  transition: background .15s, color .15s;
}
#right-tabs button:hover, #right-tabs button.active {
  background: rgba(77,208,225,0.15); color: var(--hud-teal);
}

/* ── Sliding panels ────────────────────────────────────────── */
#panel {
  position: absolute; top: 56px; bottom: 56px; right: 60px; width: 60vw;
  background: var(--hud-bg); border-left: 1px solid var(--hud-border);
  padding: 24px; overflow-y: auto; backdrop-filter: blur(8px);
}
#agent-drawer {
  position: absolute; top: 56px; bottom: 56px; right: 60px; width: 400px;
  background: var(--hud-bg); border-left: 1px solid var(--hud-border);
  padding: 24px; overflow-y: auto; backdrop-filter: blur(8px);
}
#panel h2, #agent-drawer h2 { margin-top: 0; letter-spacing: 2px; font-weight: 400; }
#panel table { width: 100%; border-collapse: collapse; font-family: ui-monospace, monospace; font-size: 12px; }
#panel td, #panel th { padding: 6px 8px; border-bottom: 1px solid #1a2530; text-align: left; }
#panel button, #agent-drawer button {
  background: transparent; color: var(--hud-teal);
  border: 1px solid var(--hud-teal); padding: 6px 12px;
  cursor: pointer; font-family: inherit; margin: 4px;
}
#panel button:hover, #agent-drawer button:hover { background: rgba(77,208,225,.15); }

/* ── Close button (panel + drawer) ───────────────────────── */
.close-btn {
  position: absolute; top: 12px; right: 14px;
  width: 32px; height: 32px; padding: 0;
  background: transparent; color: var(--hud-text);
  border: 1px solid var(--hud-border); border-radius: 50%;
  font-size: 18px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s, border-color .15s;
  z-index: 10;
  font-family: inherit;
  margin: 0;
}
.close-btn:hover {
  background: var(--danger); color: #04060a; border-color: var(--danger);
}
#panel, #agent-drawer { position: absolute; }

/* ── Multi-room scene ──────────────────────────────────────── */
:root {
  --room-bg: rgba(8, 16, 24, 0.55);
  --room-frame: rgba(80, 200, 240, 0.35);
  --room-frame-active: rgba(120, 230, 255, 0.85);
  --packet-glow: rgba(120, 230, 255, 0.7);
}

#rooms {
  position: absolute; inset: 56px 60px 56px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 12px;
  padding: 12px;
}
@media (max-width: 1100px) {
  #rooms { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(3, 1fr); }
}

.room { position: relative; }
.room-frame {
  position: absolute; inset: 0;
  background: var(--room-bg);
  border: 1px solid var(--room-frame);
  display: flex; flex-direction: column;
  padding: 14px 16px 20px;
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.room-frame::before, .room-frame::after {
  content: ''; position: absolute; width: 14px; height: 14px;
  border-color: var(--hud-teal); border-style: solid;
  pointer-events: none;
}
.room-frame::before { top: 4px; left: 4px;   border-width: 2px 0 0 2px; }
.room-frame::after  { bottom: 4px; right: 4px; border-width: 0 2px 2px 0; }

.room-scanline {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, rgba(77,208,225,.04) 0 2px, transparent 2px 4px);
  pointer-events: none;
}

.room-nameplate {
  font-family: ui-monospace, monospace; font-size: 11px;
  letter-spacing: 2px; color: var(--hud-teal);
  margin-bottom: 8px;
}

.room-equipment {
  position: absolute; top: 32px; right: 16px;
  display: flex; gap: 8px; opacity: .55; color: var(--hud-teal);
  pointer-events: none;
}

.room-characters {
  position: relative; flex: 1;
  display: flex; align-items: flex-end; justify-content: center; gap: 12px;
  z-index: 2;
}
.room-characters .station {
  position: relative; left: auto; top: auto;
  width: 110px; height: 150px;
}

.room-ticker {
  font-family: ui-monospace, monospace; font-size: 10px;
  color: var(--hud-text); opacity: .6;
  margin-top: 6px; padding: 0 2px;
}

.room-led {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: #2a4a4a;
  transition: background .2s, box-shadow .2s;
}

.room.idle    .room-led { background: var(--ok);        box-shadow: 0 0 8px rgba(102,255,153,.4); animation: led-breathe 2s ease-in-out infinite; }
.room.working .room-led { background: var(--hud-amber); box-shadow: 0 0 12px rgba(255,183,77,.7); animation: led-breathe 0.7s ease-in-out infinite; }
.room.error   .room-led { background: var(--danger);   box-shadow: 0 0 12px rgba(255,90,90,.8);  animation: led-blink 0.3s steps(2) infinite; }

.room.working .room-frame { border-color: var(--hud-amber); box-shadow: inset 0 0 20px rgba(255,183,77,.15), 0 0 16px rgba(255,183,77,.3); }
.room.error   .room-frame { border-color: var(--danger);   box-shadow: inset 0 0 20px rgba(255,90,90,.15),  0 0 16px rgba(255,90,90,.3); }
.room.recent  .room-frame { animation: room-flash 1s ease-out; }

@keyframes led-breathe { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@keyframes led-blink   { 0% { opacity: 1; } 100% { opacity: 0.2; } }
@keyframes room-flash  { 0% { box-shadow: 0 0 0 0 var(--hud-amber); } 50% { box-shadow: 0 0 20px 4px var(--hud-amber); } 100% { box-shadow: 0 0 0 0 transparent; } }

/* ── Packet overlay ────────────────────────────────────────── */
#packets {
  position: absolute; inset: 56px 60px 56px 0;
  pointer-events: none; z-index: 50;
}

.packet {
  position: absolute;
  padding: 6px 12px;
  font-family: ui-monospace, monospace; font-size: 11px; letter-spacing: 1px;
  background: rgba(8, 16, 24, 0.85); color: var(--hud-teal);
  border: 1px solid var(--packet-glow);
  border-radius: 3px;
  white-space: nowrap;
  transform: translate(0, 0);
  opacity: 0;
  box-shadow: 0 0 12px var(--packet-glow);
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease-in-out,
              box-shadow 1.2s ease-in-out;
  will-change: transform, opacity;
}
.packet-design   { color: var(--hud-teal);  border-color: var(--hud-teal);  box-shadow: 0 0 12px var(--hud-teal); }
.packet-weights  { color: var(--hud-amber); border-color: var(--hud-amber); box-shadow: 0 0 12px rgba(255,183,77,.7); }
.packet-command  { color: #80f0ff;          border-color: #80f0ff;          box-shadow: 0 0 14px #80f0ff; }
.packet.in-flight { opacity: 1; box-shadow: 0 0 24px 4px currentColor; }

/* ── Z-index fix: panels must cover rooms (.room-characters has z-index 2) ── */
#panel, #agent-drawer { z-index: 60; }