:root {
  --col-bg: #050a14;
  --col-panel: #0a1628;
  --col-panel2: #0d1e38;
  --col-border: #1a3a5c;
  --col-border2: #254d78;
  --col-accent: #00d4ff;
  --col-accent2: #0099cc;
  --col-gold: #ffc947;
  --col-green: #00ff88;
  --col-red: #ff4455;
  --col-purple: #a855f7;
  --col-orange: #ff8c42;
  --col-text: #c8dff0;
  --col-muted: #5580a0;
  --col-dim: #2a4a6a;

  /* Level colors */
  --lv-security: #ff4455;
  --lv-admin: #ff8c42;
  --lv-commercial: #ffc947;
  --lv-entertainment: #a855f7;
  --lv-lodging: #00d4ff;
  --lv-engineering: #00ff88;
  --lv-hangar: #5580a0;
}

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

body {
  background: var(--col-bg);
  color: var(--col-text);
  font-family: 'Exo 2', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

h1 h3{
  text-align: center;
  width: fit-content;  /* shrinks to text width */
  margin: 0 auto;      /* centers the block horizontally */
}


/* ── Header ── */
header {
  background: linear-gradient(180deg, #0d1e38 0%, #050a14 100%);
  border-bottom: 1px solid var(--col-border);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.logo {
  font-family: 'Orbitron', monospace;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--col-accent);
  letter-spacing: 0.1em;
  text-shadow: 0 0 20px rgba(0,212,255,0.4);
}
.logo span { color: var(--col-gold); }
.subtitle { font-size: 0.75rem; color: var(--col-muted); letter-spacing: 0.15em; text-transform: uppercase; margin-top: 2px; }

/* ── Controls ── */
.controls {
  background: var(--col-panel);
  border: 1px solid var(--col-border);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  margin: 1.5rem 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  align-items: end;
}
.field label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--col-muted);
  margin-bottom: 6px;
  font-family: 'Orbitron', monospace;
}
.field input, .field select {
  width: 100%;
  background: var(--col-bg);
  border: 1px solid var(--col-border2);
  border-radius: 4px;
  color: var(--col-text);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.9rem;
  padding: 8px 12px;
  outline: none;
  transition: border-color 0.2s;
}
.field input:focus, .field select:focus { border-color: var(--col-accent); }
.field select option { background: var(--col-panel); }

.btn-generate {
  background: transparent;
  border: 1.5px solid var(--col-accent);
  color: var(--col-accent);
  font-family: 'Orbitron', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  padding: 10px 24px;
  border-radius: 4px;
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-generate:hover {
  background: var(--col-accent);
  color: var(--col-bg);
  box-shadow: 0 0 20px rgba(0,212,255,0.35);
}

/* ── Main layout ── */
.main {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 0;
  padding: 0 2rem 2rem;
  min-height: 70vh;
}

@media (max-width: 900px) {
  .main { grid-template-columns: 1fr; }
}

/* ── Cylinder view ── */
.cylinder-panel {
  padding-right: 2rem;
}
.cylinder-panel h2 {
  font-family: 'Orbitron', monospace;
  font-size: 0.75rem;
  color: var(--col-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--col-border);
}
#cylinder-svg { width: 100%; height: auto; display: block; }

/* ── Map panel ── */
.map-panel {
  background: var(--col-panel);
  border: 1px solid var(--col-border);
  border-radius: 8px;
  padding: 1.5rem;
  min-height: 600px;
}
.map-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--col-border);
}
.map-panel-header h2 {
  font-family: 'Orbitron', monospace;
  font-size: 0.9rem;
  color: var(--col-accent);
  letter-spacing: 0.1em;
}
#station-name {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.8rem;
  color: var(--col-gold);
}

/* ── Deck tabs ── */
.deck-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.deck-tab {
  font-family: 'Orbitron', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 3px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  color: var(--col-muted);
  background: transparent;
}
.deck-tab:hover { background: var(--col-panel2); color: var(--col-text); }
.deck-tab.active {
  color: var(--col-bg);
  border-color: transparent;
}

/* ── Deck floor map ── */
#deck-map-container { position: relative; }
.deck-display { display: none; }
.deck-display.active { display: block; }
.deck-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.25rem;
}
.deck-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.deck-title {
  font-family: 'Orbitron', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.deck-desc {
  font-size: 0.78rem;
  color: var(--col-muted);
  margin-bottom: 1.25rem;
  font-style: italic;
}

/* ── Facility grid ── */
.facility-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
  margin-bottom: 1.5rem;
}
.facility-cell {
  border: 1px solid;
  border-radius: 5px;
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  overflow: hidden;
}
.facility-cell::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: currentColor;
}
.facility-cell:hover { transform: translateY(-1px); }
.facility-cell .fc-type {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 4px;
  font-family: 'Orbitron', monospace;
}
.facility-cell .fc-name {
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.3;
}
.facility-cell .fc-quality {
  font-size: 0.7rem;
  font-family: 'Share Tech Mono', monospace;
  margin-top: 4px;
  opacity: 0.8;
}
.fc-stars { color: var(--col-gold); font-size: 0.65rem; }

/* Floor plan SVG area */
.floor-plan-area {
  background: var(--col-bg);
  border: 1px solid var(--col-border);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1rem;
  overflow: hidden;
}
#floor-plan-svg { width: 100%; height: auto; display: block; }

/* ── Legend ── */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--col-border);
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  color: var(--col-muted);
  font-family: 'Orbitron', monospace;
  letter-spacing: 0.06em;
}
.legend-dot { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; }

/* ── Empty state ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  gap: 1rem;
  color: var(--col-muted);
}
.empty-icon {
  font-size: 4rem;
  opacity: 0.3;
}
.empty-state p {
  font-family: 'Orbitron', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-align: center;
}

/* ── Tooltip ── */
.tooltip {
  position: fixed;
  background: var(--col-panel2);
  border: 1px solid var(--col-border2);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.8rem;
  pointer-events: none;
  z-index: 1000;
  display: none;
  max-width: 240px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.tooltip .tt-name { font-weight: 600; color: var(--col-accent); margin-bottom: 4px; }
.tooltip .tt-type { font-size: 0.7rem; color: var(--col-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.tooltip .tt-quality { color: var(--col-gold); margin-top: 4px; font-size: 0.75rem; }

/* ── Print / export bar ── */
.action-bar {
  display: flex; gap: 10px; align-items: center;
  padding: 1rem 2rem;
  border-top: 1px solid var(--col-border);
  margin-top: 1rem;
}
.btn-sm {
  background: transparent;
  border: 1px solid var(--col-border2);
  color: var(--col-muted);
  font-family: 'Orbitron', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 3px;
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.15s;
}
.btn-sm:hover { border-color: var(--col-accent); color: var(--col-accent); }

/* scanning animation on generate */
@keyframes scanline {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(100%); opacity: 0; }
}
.scanning .scan-line {
  position: absolute; top: 0; left: 0; width: 100%; height: 2px;
  background: var(--col-accent); opacity: 0.7;
  animation: scanline 0.6s linear forwards;
}