/* Lamarsh PWR-1000 — control-room theme */

:root {
  --bg: #0b0e13;
  --panel: #141a22;
  --line: #1f2937;
  --inset: #0f141b;
  --text: #cbd5e1;
  --dim: #64748b;
  --green: #4ade80;
  --amber: #fbbf24;
  --red: #f87171;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

header {
  padding: 10px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
header h1 { font-size: 18px; letter-spacing: 2px; color: var(--green); }
header .sub { font-size: 12px; letter-spacing: 0; color: var(--dim); font-weight: normal; margin-left: 12px; }

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 400px;
  min-height: 0;
}

/* ---- plant schematic ---- */
#plant { padding: 8px; min-width: 0; }
#schematic { width: 100%; height: 100%; display: block; }
.svg-label {
  fill: #94a3b8;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 1px;
}

/* meltdown: fuel slumps white-hot, corium pools at the vessel bottom */
#fuel-rods rect { transition: fill 1s; }
#fuel-rods.melt rect {
  fill: #fff7ed;
  animation: slump 4s ease-in forwards;
  transform-box: fill-box;
  transform-origin: bottom;
}
@keyframes slump { to { transform: scaleY(0.35) scaleX(1.5); } }
#corium { transition: opacity 3s; }
#control-rods, #core-glow { transition: none; }

/* ---- control panel ---- */
#panel {
  background: var(--panel);
  border-left: 1px solid var(--line);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
}

/* annunciator */
.annunciator {
  text-align: center;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: bold;
  letter-spacing: 3px;
  padding: 16px 8px;
  border-radius: 8px;
  border: 2px solid var(--green);
  color: var(--green);
  background: rgba(74, 222, 128, 0.07);
}
body[data-state="warning"] .annunciator {
  border-color: var(--amber); color: var(--amber);
  background: rgba(251, 191, 36, 0.1);
}
body[data-state="danger"] .annunciator {
  border-color: var(--red); color: var(--red);
  background: rgba(248, 113, 113, 0.12);
  animation: flash 0.6s steps(2, start) infinite;
}
body[data-state="meltdown"] .annunciator {
  border-color: #fff; color: #fff;
  background: var(--red);
  animation: flash 0.35s steps(2, start) infinite;
}
@keyframes flash { 50% { opacity: 0.35; } }

/* meltdown screen border */
body[data-state="meltdown"]::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  border: 6px solid var(--red);
  animation: flash 0.35s steps(2, start) infinite;
  z-index: 99;
}

/* progress bars */
.gauges { display: flex; flex-direction: column; gap: 10px; }
.gauge-head {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 4px;
}
.bar-label { color: var(--dim); text-transform: uppercase; letter-spacing: 1px; }
.bar-value, #rod-readout { font-family: var(--mono); color: var(--text); }
.bar {
  position: relative;
  height: 14px;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: 7px;
  overflow: hidden;
}
.bar-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #22c55e 0%, #a3e635 45%, #fbbf24 65%, #f97316 80%, #ef4444 95%);
  clip-path: inset(0 100% 0 0); /* revealed by ui.js */
  transition: clip-path 0.1s linear;
}

/* rod control */
.rod-control {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--inset);
}
.rod-row { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.rod-row button {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--dim);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
}
.rod-row button:hover { border-color: var(--green); color: var(--green); }
#rod-slider { flex: 1; accent-color: var(--green); }
.hint { font-size: 10px; color: var(--dim); margin-top: 6px; }

/* SCRAM / RESET */
.buttons { display: flex; gap: 10px; }
.buttons button {
  flex: 1;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 2px;
  padding: 14px 0;
  border-radius: 8px;
  cursor: pointer;
}
#scram-btn {
  color: #fff;
  background: #b91c1c;
  border: 3px solid transparent;
  border-image: repeating-linear-gradient(45deg, #fbbf24 0 8px, #111 8px 16px) 3;
}
#scram-btn:hover { background: #dc2626; }
#scram-btn:active { background: #7f1d1d; }
#reset-btn {
  color: var(--text);
  background: var(--inset);
  border: 1px solid var(--dim);
}
#reset-btn:hover { border-color: var(--green); color: var(--green); }
#mute-btn {
  flex: 0 0 52px;
  font-size: 18px;
  background: var(--inset);
  border: 1px solid var(--dim);
}
#mute-btn:hover { border-color: var(--green); }
#mute-btn.muted { opacity: 0.5; }

/* readouts */
#readouts h2 {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--dim);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.ro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.ro {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 11px;
}
.ro.wide { grid-column: span 2; }
.ro span { color: var(--dim); }
.ro b { font-family: var(--mono); font-weight: normal; color: var(--green); white-space: nowrap; }