:root {
  color-scheme: dark;
  font-family: "Chivo", system-ui, sans-serif;
  background-color: #04060f;
  color: #f5f8ff;
  --accent: #48e0ff;
  --accent-2: #ff8bd6;
  --grid-border: #182033;
  --grid-line: rgba(255, 255, 255, 0.08);
  --danger: #ff5f5f;
  --warning: #ffc860;
  --safe: #66ffa1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px clamp(16px, 4vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

header {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-end;
}

header h1 {
  margin: 4px 0;
  font-size: clamp(32px, 4vw, 48px);
}

header .lede {
  max-width: 520px;
  line-height: 1.4;
  opacity: 0.8;
}

.sector-blurb {
  font-size: 14px;
  opacity: 0.75;
  margin-top: 8px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  color: var(--accent);
}

.control-cluster {
  margin-left: auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 1fr));
  gap: 12px;
}

.control-cluster select,
.control-cluster button,
.control-cluster label {
  width: 100%;
}

.control-cluster select,
.control-cluster button {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--grid-border);
  background-color: rgba(255, 255, 255, 0.04);
  color: inherit;
}

.control-cluster button {
  grid-column: span 2;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border: none;
  color: #02121d;
  font-weight: 700;
  cursor: pointer;
}

.immersion {
  grid-column: span 2;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 10px 14px;
  display: grid;
  gap: 6px;
  background: rgba(0, 0, 0, 0.25);
}

.immersion p {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.6;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.toggle input {
  width: 16px;
  height: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.panel {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr) minmax(0, 2fr);
  gap: 24px;
}

@media (max-width: 1080px) {
  .panel {
    grid-template-columns: 1fr;
  }
  .board-wrapper {
    order: 3;
  }
  header {
    flex-direction: column;
    align-items: flex-start;
  }
  .control-cluster {
    width: 100%;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}

.hud {
  border: 1px solid var(--grid-border);
  border-radius: 20px;
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  background: radial-gradient(circle at top, rgba(72, 224, 255, 0.12), rgba(5, 9, 17, 0.8));
}

.stat {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 12px;
  position: relative;
}

.stat::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 16px;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border 180ms ease;
}

.stat[data-alert="warn"]::after {
  border-color: rgba(255, 255, 255, 0.35);
}

.stat[data-alert="danger"]::after {
  border-color: rgba(255, 95, 95, 0.7);
}

.stat .label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  opacity: 0.7;
}

.stat .value {
  font-size: 26px;
  font-weight: 700;
}

.board-wrapper {
  border: 1px solid var(--grid-border);
  border-radius: 24px;
  padding: 20px;
  background: rgba(4, 9, 19, 0.8);
  box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5);
}

.board {
  --grid-size: 9;
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(var(--grid-size), 1fr);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 16px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.cell {
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(14px, 1.5vw, 20px);
  letter-spacing: 0.05em;
  border: 1px solid var(--grid-line);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
  position: relative;
}

.cell:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.4);
}

.cell[data-state="player"] {
  background: linear-gradient(160deg, #fffd8f, #ffbf4d);
  color: #2a1c04;
  font-weight: 800;
}

.cell[data-state="sun"] {
  background: radial-gradient(circle, #ffe36b, #f37400);
  color: #140b00;
}

.cell[data-scan="warn"]::after,
.cell[data-scan="danger"]::after,
.cell[data-scan="safe"]::after {
  content: attr(data-scan-label);
  position: absolute;
  inset: 4px;
  border-radius: 8px;
  border: 1px dashed currentColor;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  font-size: 12px;
  padding: 4px;
  opacity: 0.9;
}

.cell[data-scan="safe"] {
  color: var(--safe);
}

.cell[data-scan="warn"] {
  color: var(--warning);
}

.cell[data-scan="danger"] {
  color: var(--danger);
}

.cell[data-state="blackhole"] {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), rgba(0, 0, 0, 0.8));
  box-shadow: inset 0 0 25px #000;
}

.cell[data-state="pickup"] {
  background: linear-gradient(145deg, rgba(72, 224, 255, 0.25), rgba(255, 255, 255, 0.05));
  border-color: rgba(72, 224, 255, 0.4);
  color: var(--accent);
}

.cell[data-telegraph="pulse"]::before,
.cell[data-telegraph="drift"]::before {
  content: attr(data-telegraph-label);
  position: absolute;
  inset: 6px;
  border-radius: 10px;
  border: 1px dashed currentColor;
  font-size: 11px;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.75;
}

.cell[data-telegraph="pulse"]::before {
  animation: pulseRing 1.2s infinite;
}

.cell[data-telegraph="drift"]::before {
  animation: driftSlide 0.9s infinite;
}

.cell[data-telegraph="pulse"] {
  color: var(--danger);
}

.cell[data-telegraph="drift"] {
  color: var(--warning);
}

.cell.flash-pickup {
  animation: pickupFlash 0.35s ease;
}

.cell.flash-danger {
  animation: dangerFlash 0.45s ease;
}

@keyframes pulseRing {
  from {
    transform: scale(0.8);
    opacity: 0.9;
  }
  to {
    transform: scale(1.2);
    opacity: 0.2;
  }
}

@keyframes driftSlide {
  from {
    transform: translateX(-3px);
  }
  to {
    transform: translateX(3px);
  }
}

@keyframes pickupFlash {
  from {
    box-shadow: 0 0 20px rgba(72, 224, 255, 0.8);
  }
  to {
    box-shadow: 0 0 0 rgba(72, 224, 255, 0);
  }
}

@keyframes dangerFlash {
  from {
    box-shadow: 0 0 25px rgba(255, 95, 95, 0.9);
  }
  to {
    box-shadow: 0 0 0 rgba(255, 95, 95, 0);
  }
}

.board-actions {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.board-actions button {
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.board-actions .hint {
  flex-basis: 100%;
  font-size: 13px;
  opacity: 0.7;
}

.log {
  border: 1px solid var(--grid-border);
  border-radius: 24px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: rgba(7, 11, 20, 0.9);
}

.log header h2 {
  margin: 0;
}

#logEntries {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 320px;
  overflow: auto;
}

#logEntries li {
  padding: 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
  line-height: 1.4;
}

#logEntries li[data-tone="good"] {
  border-color: rgba(102, 255, 161, 0.5);
}

#logEntries li[data-tone="bad"] {
  border-color: rgba(255, 95, 95, 0.6);
}

#logEntries time {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.6;
}

.sector-progress,
.achievements {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 12px;
}

.sector-progress p {
  margin: 4px 0 0;
  font-size: 14px;
  opacity: 0.85;
}

#achievementList {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#achievementList li {
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

#achievementList li[data-earned="true"] {
  border-color: var(--accent);
  color: var(--accent);
  opacity: 1;
}

footer {
  text-align: center;
  opacity: 0.6;
  font-size: 13px;
}

body[data-motion="off"] * {
  animation: none !important;
  transition: none !important;
}

/* Dialog */
dialog {
  border: none;
  border-radius: 24px;
  padding: 0;
  background: rgba(4, 6, 12, 0.96);
  color: inherit;
  width: min(420px, 90vw);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}

dialog article {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

dialog h2 {
  margin: 0;
}

.dialog-actions {
  display: flex;
  gap: 12px;
}

.dialog-actions button {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
  cursor: pointer;
}

.dialog-actions button:first-child {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #01060c;
  border: none;
}