:root {
  --bg-deep: #0a1628;
  --bg-mid: #12243d;
  --danger-level: 0;
  --grid-bg: rgba(8, 18, 34, 0.85);
  --cell-bg: rgba(18, 36, 58, 0.55);
  --text: #c8d6e5;
  --text-dim: #7f8c9b;
  --accent: #ff6b4a;
  --accent-glow: rgba(255, 107, 74, 0.45);
  --traitor: #8b0000;
  --traitor-glow: rgba(255, 40, 40, 0.55);
  --safe-glow: rgba(72, 219, 251, 0.15);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  color: var(--text);
  font-family: "Rajdhani", "Segoe UI", sans-serif;
  font-size: 18px;
  background:
    linear-gradient(
      165deg,
      color-mix(in srgb, var(--bg-deep) calc(100% - var(--danger-level) * 55%), #2a0808) 0%,
      color-mix(in srgb, var(--bg-mid) calc(100% - var(--danger-level) * 45%), #1a0505) 45%,
      color-mix(in srgb, #050810 calc(100% - var(--danger-level) * 30%), #120303) 100%
    );
  transition: background 0.8s ease;
}

body {
  position: relative;
  overflow-x: hidden;
}

.ambient {
  pointer-events: none;
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  z-index: 0;
}

.ambient-a {
  width: 420px;
  height: 420px;
  top: -120px;
  right: -80px;
  background: rgba(72, 152, 255, calc(0.25 * (1 - var(--danger-level))));
}

.ambient-b {
  width: 360px;
  height: 360px;
  bottom: -100px;
  left: -60px;
  background: rgba(255, 40, 40, calc(0.2 + var(--danger-level) * 0.35));
}

.container {
  position: relative;
  z-index: 1;
  width: min(1240px, 96vw);
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.site-header {
  text-align: center;
  margin-bottom: 24px;
}

.layout-grid {
  display: grid;
  gap: 20px;
  align-items: start;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.panel-heading {
  margin: 0 0 4px;
  font-family: "Orbitron", sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.subheading {
  margin: 0 0 10px;
  font-family: "Orbitron", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--text);
}

.panel-card {
  padding: 0;
  border-radius: 0;
  background: transparent;
  border: none;
}

.heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.85;
}

.title {
  margin: 0;
  font-family: "Orbitron", sans-serif;
  font-size: clamp(2rem, 8vw, 2.8rem);
  font-weight: 900;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, #fff 0%, #ff6b4a 60%, #ff4757 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(255, 107, 74, 0.25);
}

.tagline {
  margin: 6px 0 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.scores-container {
  width: 100%;
}

.scores-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 0;
}

.player-progress {
  flex: none;
  min-width: 0;
}

.player-rank {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.player-level {
  font-family: "Orbitron", sans-serif;
  font-size: 1.2rem;
  color: #48dbfb;
}

.player-title {
  font-size: 0.9rem;
  color: #ffa502;
}

.xp-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.xp-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #48dbfb, #0abde3);
  transition: width 0.4s ease;
  box-shadow: 0 0 10px rgba(72, 219, 251, 0.4);
}

.xp-label {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: right;
}

.chapter-panel {
  margin-top: 0;
}

.chapter-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.chapter-label {
  margin: 0 0 4px;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.chapter-title {
  margin: 0;
  font-family: "Orbitron", sans-serif;
  font-size: 0.92rem;
  line-height: 1.35;
}

.chapter-stars-display .star-slot {
  display: inline-block;
  width: 0.95rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.2);
  font-size: 1rem;
}

.chapter-stars-display .star-slot::before,
.result-star.star-slot::before,
.star-mark::before {
  content: "*";
}

.chapter-stars-display .star-slot.earned,
.result-star.star-slot.earned,
.star-mark.earned {
  color: #ffd43b;
  text-shadow: 0 0 8px rgba(255, 212, 59, 0.5);
}

.chapter-node .node-stars {
  display: block;
  font-size: 0.62rem;
  margin-top: 2px;
}

.chapter-node .node-stars .star-mark {
  display: inline-block;
  width: 0.55rem;
  color: rgba(255, 255, 255, 0.18);
}

.chapter-node .node-stars .star-mark.earned {
  color: #ffd43b;
}

.mission-box {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  background: rgba(255, 165, 2, 0.08);
  border: 1px solid rgba(255, 165, 2, 0.18);
}

.mission-text {
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.mission-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.mission-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #ff922b, #ffd43b);
  transition: width 0.35s ease;
}

.mission-count {
  margin-top: 6px;
  font-family: "Orbitron", sans-serif;
  font-size: 0.82rem;
  color: #ffd43b;
  text-align: right;
}

.chapter-map {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.chapter-node {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 6px;
  cursor: pointer;
  min-width: 0;
  text-align: center;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.chapter-node.active {
  border-color: rgba(72, 219, 251, 0.55);
  background: rgba(72, 219, 251, 0.12);
  box-shadow: 0 0 16px rgba(72, 219, 251, 0.2);
}

.chapter-node.locked {
  opacity: 0.35;
  cursor: not-allowed;
}

.chapter-node .node-num {
  display: block;
  font-family: "Orbitron", sans-serif;
  font-size: 0.95rem;
}

.score-box {
  position: relative;
  min-width: 0;
  padding: 22px 10px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  text-align: center;
  font-family: "Orbitron", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), 0 8px 24px rgba(0,0,0,0.25);
}

.score-box::after {
  position: absolute;
  top: 8px;
  left: 0;
  width: 100%;
  font-family: "Rajdhani", sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.score-container::after { content: "Score"; }
.best-container::after { content: "Best"; }
.purify-container::after { content: "Defuse"; }

.score-addition {
  position: absolute;
  right: 8px;
  top: 50%;
  color: var(--accent);
  font-size: 0.85rem;
  animation: float-up 0.7s ease forwards;
}

@keyframes float-up {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-24px); }
}

.above-game {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-top: 0;
}

.game-intro {
  flex: 1 1 260px;
  margin: 0;
  line-height: 1.55;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.game-intro strong {
  color: #fff;
}

.restart-button,
.share-button,
.copy-button,
.retry-button {
  appearance: none;
  border: none;
  cursor: pointer;
  font-family: "Rajdhani", sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.restart-button {
  padding: 12px 20px;
  border-radius: 8px;
  background: linear-gradient(135deg, #ff6b4a, #c0392b);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.restart-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px var(--accent-glow);
}

.hull-panel {
  margin-top: 0;
}

.hull-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hull-value {
  font-family: "Orbitron", sans-serif;
  color: #48dbfb;
}

.hull-bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.hull-bar-fill {
  height: 100%;
  width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #0abde3, #48dbfb);
  transition: width 0.35s ease, background 0.35s ease;
  box-shadow: 0 0 12px rgba(72, 219, 251, 0.45);
}

.hull-bar-fill.hull-low {
  background: linear-gradient(90deg, #ff922b, #ff6b4a);
  box-shadow: 0 0 12px rgba(255, 107, 74, 0.45);
}

.hull-bar-fill.hull-critical {
  background: linear-gradient(90deg, #ff4757, #c0392b);
  animation: hull-critical 0.6s ease infinite;
}

@keyframes hull-critical {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.25); }
}

.game-container {
  position: relative;
  margin-top: 0;
  padding: 14px;
  border-radius: 14px;
  background: var(--grid-bg);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.35),
    0 20px 50px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(255,255,255,0.04);
  touch-action: none;
  user-select: none;
}

.grid-container {
  position: relative;
  z-index: 1;
}

.grid-row {
  display: flex;
  margin-bottom: 12px;
}

.grid-row:last-child {
  margin-bottom: 0;
}

.grid-cell {
  width: 106px;
  height: 106px;
  margin-right: 12px;
  border-radius: 8px;
  background: var(--cell-bg);
  border: 1px solid rgba(255,255,255,0.04);
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.35);
}

.grid-row .grid-cell:last-child {
  margin-right: 0;
}

.tile-container {
  position: absolute;
  inset: 14px;
  z-index: 2;
}

.tile {
  position: absolute;
  width: 106px;
  height: 106px;
  border-radius: 8px;
  transition: 120ms ease-in-out;
}

.tile-inner {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 2rem;
  line-height: 1;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.18),
    0 8px 18px rgba(0,0,0,0.35);
}

.tile-new .tile-inner {
  animation: pop-in 220ms ease;
}

.tile-merged .tile-inner {
  animation: pulse-merge 180ms ease;
}

.tile-purified .tile-inner {
  animation: purify-burst 350ms ease forwards;
}

@keyframes pop-in {
  0% { transform: scale(0.5); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes pulse-merge {
  0% { transform: scale(1); }
  50% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes purify-burst {
  0% { transform: scale(1); opacity: 1; filter: brightness(1); }
  40% { transform: scale(1.2); opacity: 0.9; filter: brightness(2); }
  100% { transform: scale(0); opacity: 0; }
}

.tile-position-1-1 { transform: translate(0px, 0px); }
.tile-position-1-2 { transform: translate(0px, 118px); }
.tile-position-1-3 { transform: translate(0px, 236px); }
.tile-position-1-4 { transform: translate(0px, 354px); }
.tile-position-2-1 { transform: translate(118px, 0px); }
.tile-position-2-2 { transform: translate(118px, 118px); }
.tile-position-2-3 { transform: translate(118px, 236px); }
.tile-position-2-4 { transform: translate(118px, 354px); }
.tile-position-3-1 { transform: translate(236px, 0px); }
.tile-position-3-2 { transform: translate(236px, 118px); }
.tile-position-3-3 { transform: translate(236px, 236px); }
.tile-position-3-4 { transform: translate(236px, 354px); }
.tile-position-4-1 { transform: translate(354px, 0px); }
.tile-position-4-2 { transform: translate(354px, 118px); }
.tile-position-4-3 { transform: translate(354px, 236px); }
.tile-position-4-4 { transform: translate(354px, 354px); }

.tile-2 .tile-inner { background: linear-gradient(135deg, #2d4059, #3d5a80); color: #eaf4ff; }
.tile-4 .tile-inner { background: linear-gradient(135deg, #1e5f74, #2892a8); color: #fff; }
.tile-8 .tile-inner { background: linear-gradient(135deg, #0e7c86, #17a2b8); color: #fff; }
.tile-16 .tile-inner { background: linear-gradient(135deg, #0b7285, #15aabf); color: #fff; }
.tile-32 .tile-inner { background: linear-gradient(135deg, #1864ab, #339af0); color: #fff; box-shadow: 0 0 20px var(--safe-glow); }
.tile-64 .tile-inner,
.tile.pending-traitor .tile-inner {
  background: linear-gradient(135deg, #e67700, #ff922b);
  color: #fff;
  animation: hot-pulse 1.2s ease infinite;
}
.tile-128 .tile-inner { background: linear-gradient(135deg, #d9480f, #ff6b6b); color: #fff; }
.tile-256 .tile-inner { background: linear-gradient(135deg, #c92a2a, #ff4757); color: #fff; }
.tile-512 .tile-inner { background: linear-gradient(135deg, #a61e4d, #f06595); color: #fff; }
.tile-1024 .tile-inner { background: linear-gradient(135deg, #862e9c, #cc5de8); color: #fff; font-size: 1.6rem; }
.tile-2048 .tile-inner,
.tile-super .tile-inner { background: linear-gradient(135deg, #5f3dc4, #9775fa); color: #fff; font-size: 1.5rem; }

@keyframes hot-pulse {
  0%, 100% { box-shadow: inset 0 1px 0 rgba(255,255,255,0.18), 0 0 12px rgba(255, 146, 43, 0.35); }
  50% { box-shadow: inset 0 1px 0 rgba(255,255,255,0.18), 0 0 22px rgba(255, 146, 43, 0.65); }
}

.tile.traitor .tile-inner {
  background:
    linear-gradient(145deg, #4a0000 0%, #8b0000 40%, #3d0505 100%);
  color: #ff6b6b;
  flex-direction: column;
  gap: 2px;
  border: 2px solid rgba(255, 60, 60, 0.55);
  box-shadow:
    inset 0 0 18px rgba(255, 0, 0, 0.25),
    0 0 24px var(--traitor-glow);
  animation: crack-pulse 1s ease infinite;
  position: relative;
  overflow: hidden;
}

.traitor-value {
  font-family: "Orbitron", sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  text-shadow: 0 0 10px rgba(255, 100, 100, 0.5);
}

.traitor-timer {
  font-family: "Orbitron", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: #ff6b6b;
  opacity: 0.95;
}

.tile.traitor.urgent .traitor-timer {
  color: #fff;
  animation: urgent-blink 0.45s ease infinite;
}

.tile.traitor .tile-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(35deg, transparent 44%, rgba(255,80,80,0.35) 45%, transparent 46%),
    linear-gradient(-25deg, transparent 58%, rgba(255,80,80,0.25) 59%, transparent 61%),
    linear-gradient(70deg, transparent 30%, rgba(255,80,80,0.2) 31%, transparent 33%);
  pointer-events: none;
}

.tile.traitor.urgent .tile-inner,
.tile.traitor.critical .tile-inner {
  animation: urgent-blink 0.45s ease infinite;
  color: #fff;
}

.betray-countdown {
  position: absolute;
  top: 6px;
  right: 8px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 999px;
  background: rgba(255, 146, 43, 0.9);
  color: #1a1a1a;
  font-family: "Orbitron", sans-serif;
  font-size: 0.65rem;
  line-height: 18px;
  text-align: center;
  box-shadow: 0 0 10px rgba(255, 146, 43, 0.6);
}

.tile.pending-traitor .tile-inner {
  position: relative;
}

.combo-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 6;
  overflow: hidden;
}

.combo-popup {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255, 165, 2, 0.92);
  color: #1a1000;
  font-family: "Orbitron", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  animation: combo-rise 1.1s ease forwards;
  box-shadow: 0 0 30px rgba(255, 165, 2, 0.55);
}

.combo-popup.perfect {
  background: rgba(46, 213, 115, 0.92);
  box-shadow: 0 0 30px rgba(46, 213, 115, 0.55);
}

@keyframes combo-rise {
  0% { opacity: 0; transform: translate(-50%, -20%) scale(0.7); }
  20% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
  100% { opacity: 0; transform: translate(-50%, -90%) scale(1); }
}

.game-toast {
  position: absolute;
  left: 50%;
  top: 12px;
  transform: translateX(-50%);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  z-index: 7;
  animation: toast-fade 0.9s ease forwards;
  pointer-events: none;
}

.game-toast.time-bonus {
  background: rgba(72, 219, 251, 0.2);
  border: 1px solid rgba(72, 219, 251, 0.45);
  color: #48dbfb;
}

.game-toast.hull-damage {
  background: rgba(255, 71, 87, 0.2);
  border: 1px solid rgba(255, 71, 87, 0.45);
  color: #ff6b81;
}

@keyframes toast-fade {
  0% { opacity: 0; transform: translate(-50%, -8px); }
  15% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -4px); }
}

@keyframes crack-pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.15); }
}

@keyframes urgent-blink {
  0%, 100% { box-shadow: inset 0 0 18px rgba(255,0,0,0.35), 0 0 30px rgba(255,0,0,0.7); }
  50% { box-shadow: inset 0 0 28px rgba(255,0,0,0.55), 0 0 45px rgba(255,50,50,0.95); }
}

.game-message {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 10;
  border-radius: 12px;
  background: rgba(5, 10, 20, 0.82);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.game-message.game-over {
  display: flex;
  animation: fade-in 0.35s ease;
}

.message-panel {
  width: 100%;
  max-width: 440px;
  text-align: center;
}

.game-over-title {
  margin: 0 0 8px;
  font-family: "Orbitron", sans-serif;
  font-size: 1.8rem;
  color: var(--accent);
}

.game-over-score,
.game-over-purify,
.game-over-rank,
.share-text {
  margin: 6px 0;
  color: var(--text-dim);
  line-height: 1.5;
}

.share-text {
  font-size: 0.92rem;
  padding: 10px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}

#share-canvas {
  width: 100%;
  max-width: 440px;
  height: auto;
  margin: 14px auto;
  border-radius: 10px;
  display: block;
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}

.message-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 12px;
}

.share-button,
.copy-button,
.retry-button {
  padding: 10px 16px;
  border-radius: 8px;
  color: #fff;
}

.share-button { background: linear-gradient(135deg, #ff6b4a, #ee5a24); }
.copy-button { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.12); }
.retry-button { background: rgba(72, 219, 251, 0.15); border: 1px solid rgba(72, 219, 251, 0.25); }

.panel-main {
  gap: 16px;
  align-items: center;
}

.panel-main .scores-container,
.panel-main .above-game,
.panel-main .game-container,
.panel-main .legend {
  width: 100%;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 0;
  font-size: 0.82rem;
  color: var(--text-dim);
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-safe { background: #339af0; box-shadow: 0 0 8px rgba(51,154,240,0.5); }
.dot-hot { background: #ff922b; box-shadow: 0 0 8px rgba(255,146,43,0.5); }
.dot-traitor { background: #ff4757; box-shadow: 0 0 8px rgba(255,71,87,0.6); }

.leaderboard {
  margin-top: 0;
}

.leaderboard h2,
.leaderboard .subheading {
  margin: 0 0 4px;
}

.leaderboard-desc {
  margin: 0 0 12px;
  color: var(--text-dim);
  font-size: 0.8rem;
}

.leaderboard-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.leaderboard-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 2px 8px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.85rem;
}

.leaderboard-list li:last-child {
  border-bottom: none;
}

.leaderboard-empty {
  grid-template-columns: 1fr !important;
  color: var(--text-dim);
  font-style: italic;
}

.leaderboard-list .rank {
  font-family: "Orbitron", sans-serif;
  color: var(--accent);
}

.leaderboard-list .name {
  grid-column: 2;
  font-weight: 600;
}

.leaderboard-list .purify,
.leaderboard-list .score {
  grid-column: 2;
  font-size: 0.78rem;
}

.leaderboard-list .purify {
  color: #ffa502;
}

.leaderboard-list .score {
  color: var(--text-dim);
}

.leaderboard-list .badge {
  grid-column: 2;
  font-size: 0.72rem;
  color: #ffd43b;
}

.game-explanation {
  margin-top: 24px;
  padding: 0;
  color: var(--text-dim);
  line-height: 1.65;
  text-align: center;
}

.game-explanation h2 {
  margin: 0 0 14px;
  font-family: "Orbitron", sans-serif;
  color: var(--text);
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.game-explanation ul {
  display: inline-block;
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 520px;
  text-align: left;
}

.game-explanation li {
  position: relative;
  padding-left: 1.1em;
  margin-bottom: 8px;
}

.game-explanation li:last-child {
  margin-bottom: 0;
}

.game-explanation li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.titles {
  margin-top: 0;
}

.title-badges {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.title-badge {
  display: block;
  text-align: center;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.78rem;
  background: rgba(255, 107, 74, 0.12);
  border: 1px solid rgba(255, 107, 74, 0.22);
  color: #ffb199;
}

body.alarm-flash {
  animation: alarm-flash 0.6s ease;
}

body.purify-flash {
  animation: purify-flash 0.4s ease;
}

body.explosion-shake {
  animation: explosion-shake 0.5s ease;
}

@keyframes alarm-flash {
  0%, 100% { filter: none; }
  25%, 75% { filter: brightness(1.15) saturate(1.3); }
}

@keyframes purify-flash {
  0%, 100% { filter: none; }
  50% { filter: brightness(1.25); }
}

@keyframes explosion-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.achievements {
  margin-top: 0;
}

.achievement-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.achievement-card {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  opacity: 0.45;
  filter: grayscale(0.8);
}

.achievement-card.unlocked {
  opacity: 1;
  filter: none;
  border-color: rgba(255, 212, 59, 0.25);
  background: rgba(255, 212, 59, 0.06);
}

.ach-icon {
  font-size: 1.4rem;
  display: block;
  margin-bottom: 6px;
}

.achievement-card strong {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.achievement-card p {
  margin: 0 0 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.35;
}

.ach-xp {
  font-size: 0.72rem;
  color: #48dbfb;
}

.reward-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 8, 16, 0.75);
  backdrop-filter: blur(4px);
  animation: fade-in 0.25s ease;
}

.reward-overlay.hidden {
  display: none;
}

.reward-card {
  width: min(320px, 88vw);
  padding: 28px 22px;
  border-radius: 16px;
  text-align: center;
  background: linear-gradient(160deg, rgba(18, 36, 58, 0.95), rgba(40, 12, 12, 0.92));
  border: 1px solid rgba(255, 165, 2, 0.35);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(255, 165, 2, 0.15);
}

.reward-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.reward-card h3 {
  margin: 0 0 8px;
  font-family: "Orbitron", sans-serif;
  color: #ffd43b;
}

.reward-card p {
  margin: 0 0 6px;
  color: var(--text-dim);
}

.reward-xp {
  font-family: "Orbitron", sans-serif;
  color: #48dbfb !important;
  font-size: 1.1rem !important;
  margin-bottom: 16px !important;
}

.reward-confirm,
.next-chapter-button {
  appearance: none;
  border: none;
  cursor: pointer;
  padding: 11px 20px;
  border-radius: 8px;
  font-family: "Rajdhani", sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, #ffd43b, #ff922b);
}

.next-chapter-button {
  background: linear-gradient(135deg, #48dbfb, #0abde3);
}

.result-stars {
  margin: 8px 0 12px;
}

.result-star {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.2);
  margin: 0 4px;
}

.result-star.earned {
  color: #ffd43b;
  text-shadow: 0 0 12px rgba(255, 212, 59, 0.6);
}

.game-over-xp {
  color: #48dbfb !important;
  font-family: "Orbitron", sans-serif;
  font-size: 0.95rem !important;
}

.xp-floater {
  position: absolute;
  left: 50%;
  bottom: 18%;
  transform: translateX(-50%);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(72, 219, 251, 0.18);
  border: 1px solid rgba(72, 219, 251, 0.45);
  color: #48dbfb;
  font-family: "Orbitron", sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 8;
  pointer-events: none;
  animation: float-up 1s ease forwards;
}

.game-toast.mission-done {
  background: rgba(255, 212, 59, 0.18);
  border: 1px solid rgba(255, 212, 59, 0.45);
  color: #ffd43b;
  font-size: 0.95rem;
}

@media (min-width: 1024px) {
  .layout-grid {
    grid-template-columns: 1fr 488px 1fr;
    gap: 28px;
    align-items: start;
  }

  .panel-left {
    justify-self: end;
    width: 100%;
    max-width: 280px;
    position: sticky;
    top: 16px;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    padding-right: 4px;
  }

  .panel-right {
    justify-self: start;
    width: 100%;
    max-width: 304px;
    gap: 12px;
  }

  .panel-left::-webkit-scrollbar {
    width: 4px;
  }

  .panel-left::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
  }

  .panel-main {
    justify-self: center;
    width: 488px;
  }

  .game-explanation {
    grid-column: 1 / -1;
    justify-self: center;
    width: 100%;
    max-width: 520px;
    margin-top: 20px;
  }

  .panel-right .panel-heading {
    margin-bottom: 2px;
  }

  .panel-right .subheading {
    margin: 0 0 6px;
    font-size: 0.76rem;
  }

  .panel-right .leaderboard-desc {
    margin: 0 0 7px;
    font-size: 0.72rem;
  }

  .panel-right .achievement-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }

  .panel-right .achievement-card {
    display: grid;
    grid-template-columns: 20px 1fr;
    grid-template-rows: auto auto;
    gap: 2px 7px;
    padding: 6px 7px;
    border-radius: 6px;
    border: none;
    background: rgba(255, 255, 255, 0.03);
  }

  .panel-right .achievement-card.unlocked {
    background: rgba(255, 212, 59, 0.07);
  }

  .panel-right .ach-icon {
    grid-row: 1 / 3;
    font-size: 0.92rem;
    margin: 0;
    line-height: 1.2;
  }

  .panel-right .achievement-card strong {
    font-size: 0.72rem;
    margin: 0;
    line-height: 1.25;
  }

  .panel-right .achievement-card p {
    display: none;
  }

  .panel-right .ach-xp {
    font-size: 0.64rem;
    line-height: 1.2;
  }

  .panel-right .leaderboard-list li {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 2px 8px;
    padding: 5px 0;
    font-size: 0.74rem;
  }

  .panel-right .leaderboard-list .rank {
    flex: 0 0 20px;
    grid-row: auto;
    padding-top: 0;
  }

  .panel-right .leaderboard-list .name {
    flex: 1 1 72px;
    grid-column: auto;
    font-size: 0.74rem;
  }

  .panel-right .leaderboard-list .purify,
  .panel-right .leaderboard-list .score {
    flex: 0 0 auto;
    grid-column: auto;
    font-size: 0.68rem;
  }

  .panel-right .leaderboard-list .badge {
    flex: 1 0 100%;
    grid-column: auto;
    padding-left: 20px;
    font-size: 0.66rem;
  }

  .panel-right .title-badges {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5px;
  }

  .panel-right .title-badge {
    padding: 5px 6px;
    font-size: 0.66rem;
    border: none;
    background: rgba(255, 107, 74, 0.08);
    border-radius: 4px;
  }

  .site-header {
    margin-bottom: 28px;
  }
}

@media (max-width: 1023px) {
  .layout-grid {
    grid-template-columns: 1fr;
  }

  .panel-main {
    order: 1;
  }

  .panel-left {
    order: 2;
  }

  .panel-right {
    order: 3;
  }

  .game-explanation {
    order: 4;
    margin-top: 28px;
    max-width: 100%;
  }

  .panel-heading {
    margin-top: 8px;
  }

  .achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }

  .title-badges {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .title-badge {
    display: inline-block;
    border-radius: 999px;
  }

  .leaderboard-list li {
    grid-template-columns: 36px 1fr auto auto;
  }

  .leaderboard-list .name,
  .leaderboard-list .purify,
  .leaderboard-list .score,
  .leaderboard-list .badge {
    grid-column: auto;
  }
}

@media (max-width: 520px) {
  .grid-cell, .tile {
    width: calc((100vw - 94px) / 4);
    height: calc((100vw - 94px) / 4);
  }

  .grid-row { margin-bottom: calc((100vw - 94px) / 4 * 0.113); }
  .grid-row .grid-cell { margin-right: calc((100vw - 94px) / 4 * 0.113); }

  .tile-position-1-1 { transform: translate(0, 0); }
  .tile-position-1-2 { transform: translate(0, calc((100vw - 94px) / 4 * 1.113)); }
  .tile-position-1-3 { transform: translate(0, calc((100vw - 94px) / 4 * 2.226)); }
  .tile-position-1-4 { transform: translate(0, calc((100vw - 94px) / 4 * 3.339)); }
  .tile-position-2-1 { transform: translate(calc((100vw - 94px) / 4 * 1.113), 0); }
  .tile-position-2-2 { transform: translate(calc((100vw - 94px) / 4 * 1.113), calc((100vw - 94px) / 4 * 1.113)); }
  .tile-position-2-3 { transform: translate(calc((100vw - 94px) / 4 * 1.113), calc((100vw - 94px) / 4 * 2.226)); }
  .tile-position-2-4 { transform: translate(calc((100vw - 94px) / 4 * 1.113), calc((100vw - 94px) / 4 * 3.339)); }
  .tile-position-3-1 { transform: translate(calc((100vw - 94px) / 4 * 2.226), 0); }
  .tile-position-3-2 { transform: translate(calc((100vw - 94px) / 4 * 2.226), calc((100vw - 94px) / 4 * 1.113)); }
  .tile-position-3-3 { transform: translate(calc((100vw - 94px) / 4 * 2.226), calc((100vw - 94px) / 4 * 2.226)); }
  .tile-position-3-4 { transform: translate(calc((100vw - 94px) / 4 * 2.226), calc((100vw - 94px) / 4 * 3.339)); }
  .tile-position-4-1 { transform: translate(calc((100vw - 94px) / 4 * 3.339), 0); }
  .tile-position-4-2 { transform: translate(calc((100vw - 94px) / 4 * 3.339), calc((100vw - 94px) / 4 * 1.113)); }
  .tile-position-4-3 { transform: translate(calc((100vw - 94px) / 4 * 3.339), calc((100vw - 94px) / 4 * 2.226)); }
  .tile-position-4-4 { transform: translate(calc((100vw - 94px) / 4 * 3.339), calc((100vw - 94px) / 4 * 3.339)); }

  .tile-inner { font-size: clamp(1.2rem, 5vw, 2rem); }
}