/* ==========================================================================
   NEON SHELL - Cyberpunk Style Sheet
   ========================================================================== */

:root {
  --bg-dark: #07040f;
  --bg-darker: #020106;
  --neon-magenta: #ff007f;
  --neon-gold: #ffb800;
  --neon-cyan: #00f0ff;
  --neon-purple: #9400d3;
  --neon-green: #39ff14;
  --text-main: #f5f0fa;
  --text-muted: #7d7994;
  --glass-bg: rgba(12, 6, 24, 0.75);
  --glass-border: rgba(255, 0, 127, 0.12);
  --glass-border-hover: rgba(0, 240, 255, 0.4);
}

/* Reset & Base Setup */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}

body {
  background-color: var(--bg-darker);
  color: var(--text-main);
  font-family: 'Noto Sans KR', 'Rajdhani', sans-serif;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* Scanline Overlay for Arcade Feel */
.scanlines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    rgba(18, 10, 36, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 127, 0.03),
    rgba(0, 240, 255, 0.03),
    rgba(0, 0, 0, 0)
  );
  background-size: 100% 4px, 6px 100%;
  z-index: 999;
  pointer-events: none;
}

/* Portal Link Button */
.portal-link-container {
  position: absolute;
  top: 15px;
  left: 15px;
  z-index: 1000;
}

.portal-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
}

.portal-btn:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
  transform: translateY(-2px);
}

/* Main Layout Wrapper */
.game-wrapper {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  z-index: 10;
  max-width: 1300px;
  width: 100%;
  padding: 20px;
}

/* Spacer to center the main-column game screen on desktop */
.left-spacer {
  width: 140px;
  flex-shrink: 0;
}

.main-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 800px;
}

/* Header HUD Panel */
.hud-panel {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 15px 30px;
  margin-bottom: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hud-item {
  display: flex;
  flex-direction: column;
}

.hud-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 2px;
}

.hud-val {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--neon-magenta);
  text-shadow: 0 0 10px rgba(255, 0, 127, 0.5);
}

.stage-box .hud-val {
  color: var(--neon-gold);
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.5);
}

.text-indicator {
  display: flex;
  flex-direction: column;
  text-align: right;
  align-items: flex-end;
}

.status-text {
  font-size: 1.2rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* Timer Countdown Area */
.timer-container {
  flex-grow: 1;
  max-width: 420px;
  margin: 0 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timer-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.timer-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.timer-bar {
  height: 100%;
  width: 0%; /* Initially 0% until shuffling finished */
  background: linear-gradient(90deg, var(--neon-magenta), var(--neon-cyan));
  box-shadow: 0 0 10px var(--neon-magenta);
  border-radius: 4px;
  transition: width 0.05s linear; /* Smooth scaling */
}

/* Game Viewport Container */
.game-viewport {
  width: 800px;
  height: 800px;
  background: #06030c;
  border-radius: 24px;
  border: 1px solid var(--glass-border);
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
  overflow: hidden;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

/* Viewport Screen Shake Animation */
.shake-anim {
  animation: shake-action 0.4s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake-action {
  10%, 90% { transform: translate3d(-2px, 0, 0); }
  20%, 80% { transform: translate3d(4px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-6px, 0, 0); }
  40%, 60% { transform: translate3d(6px, 0, 0); }
}

/* Interactive Overlay System */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(6, 3, 12, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
  z-index: 100;
  padding: 40px;
}

.overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Start Screen specific details */
.glow-title-box {
  text-align: center;
  margin-bottom: 40px;
}

.game-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: 6px;
  color: var(--text-main);
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
  margin-bottom: 10px;
}

.game-title span.gold-text {
  color: var(--neon-gold);
  text-shadow: 0 0 15px var(--neon-gold), 0 0 30px rgba(255, 184, 0, 0.4);
}

.game-tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.rules-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 25px 30px;
  max-width: 520px;
  width: 100%;
  margin-bottom: 40px;
  box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.01);
}

.rule-row {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 15px;
}

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

.rule-icon {
  font-size: 1.3rem;
}

.rule-text {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.rule-text strong {
  color: var(--text-main);
}

/* Premium System Button styling */
.menu-btn {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 3px;
  color: var(--text-main);
  padding: 15px 40px;
  border-radius: 12px;
  border: 1px solid var(--neon-magenta);
  background: linear-gradient(135deg, var(--neon-magenta), var(--neon-purple));
  cursor: pointer;
  box-shadow: 0 0 20px rgba(255, 0, 127, 0.35);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
  outline: none;
}

.menu-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255, 0, 127, 0.6);
  border-color: #ff3399;
}

.menu-btn:active {
  transform: translateY(1px);
}

.start-btn-effect {
  border-color: var(--neon-gold);
  background: linear-gradient(135deg, var(--neon-gold), #cc7a00);
  box-shadow: 0 0 20px rgba(255, 184, 0, 0.35);
}

.start-btn-effect:hover {
  border-color: #ffd666;
  box-shadow: 0 0 30px rgba(255, 184, 0, 0.65);
}

/* Game Over specific details */
.gameover-title-box {
  text-align: center;
  margin-bottom: 30px;
}

.gameover-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 5px;
  color: var(--text-main);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
  margin-bottom: 8px;
}

.gameover-title span.danger-text {
  color: var(--neon-magenta);
  text-shadow: 0 0 15px var(--neon-magenta), 0 0 30px rgba(255, 0, 127, 0.4);
}

.gameover-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 1.5px;
}

.result-box {
  background: rgba(255, 0, 127, 0.03);
  border: 1px solid rgba(255, 0, 127, 0.1);
  border-radius: 20px;
  padding: 20px 45px;
  text-align: center;
  margin-bottom: 35px;
  box-shadow: inset 0 0 15px rgba(255, 0, 127, 0.05);
}

.result-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 3px;
  margin-bottom: 5px;
}

.result-score {
  font-family: 'Orbitron', sans-serif;
  font-size: 3.8rem;
  font-weight: 900;
  color: var(--neon-gold);
  text-shadow: 0 0 15px rgba(255, 184, 0, 0.6);
}

/* Ranking Code Input Registry */
.ranking-registry-box {
  max-width: 440px;
  width: 100%;
  margin-bottom: 40px;
  text-align: left;
}

.input-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.registry-inputs {
  display: flex;
  gap: 12px;
}

#player-name {
  flex-grow: 1;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 14px 20px;
  font-family: 'Orbitron', 'Noto Sans KR', sans-serif;
  font-size: 1rem;
  color: var(--text-main);
  outline: none;
  transition: all 0.3s ease;
}

#player-name:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
}

.submit-btn {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 2px;
  color: var(--bg-darker);
  background: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  padding: 0 25px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
}

.submit-btn:hover {
  background: #33f3ff;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.submit-btn:disabled {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
}

.error-msg {
  font-size: 0.8rem;
  color: #ff3366;
  margin-top: 8px;
  display: none;
  letter-spacing: 0.5px;
}

.gameover-controls {
  display: flex;
  gap: 15px;
}

.restart-btn {
  border-color: var(--neon-green);
  background: linear-gradient(135deg, var(--neon-green), #1bb300);
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.25);
}

.restart-btn:hover {
  border-color: #85ff66;
  box-shadow: 0 0 30px rgba(57, 255, 20, 0.55);
}

.secondary-btn {
  border-color: var(--neon-cyan);
  background: transparent;
  box-shadow: none;
}

.secondary-btn:hover {
  border-color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

/* Bottom Leaderboard Panel */
.bottom-leaderboard {
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 25px 30px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
  margin-top: 20px;
  display: flex;
  flex-direction: column;
}

.bottom-leaderboard-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 2px;
  color: var(--neon-gold);
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.3);
  margin-bottom: 20px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 12px;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.leaderboard-table th {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.leaderboard-table td {
  padding: 10px 0;
  font-size: 0.85rem;
  color: var(--text-main);
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.leaderboard-table tr:last-child td {
  border-bottom: none;
}

/* Rank Glow styles */
.rank-1 {
  color: var(--neon-gold);
  font-weight: bold;
}
.rank-2 {
  color: var(--neon-cyan);
  font-weight: bold;
}
.rank-3 {
  color: var(--neon-magenta);
  font-weight: bold;
}

.gold-text {
  color: var(--neon-gold);
}

.highlighted {
  background: rgba(0, 240, 255, 0.05);
}

/* Right Aside Ad Layout */
.ad-side-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 800px; /* Aligned to game frame height */
  margin-top: 80px; /* Aligns top edge */
}

/* Go to Hub Navigation Button */
.home-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 140px;
  padding: 12px 16px;
  margin-bottom: 20px;
  border-radius: 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  text-align: center;
  line-height: 1.2;
}

.home-btn:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
  transform: translateY(-3px);
  color: var(--neon-cyan);
}

.home-btn:active {
  transform: translateY(1px);
}

.home-icon {
  font-size: 1.05rem;
}

/* Coupang Partners Ad Banner (140x680 Vertical) */
.ad-banner-container {
  width: 140px;
  height: 680px;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--glass-border);
  box-shadow: 0 0 20px rgba(255, 0, 127, 0.05), 0 8px 30px rgba(0, 0, 0, 0.7);
  background: rgba(8, 4, 18, 0.6);
  position: relative;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.ad-banner-container:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.15), 0 8px 30px rgba(0, 0, 0, 0.8);
}

.ad-banner-container iframe {
  display: block;
  border: none !important;
  border-radius: 12px;
  max-height: 100%;
}

/* Fullscreen Backdrop Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(3, 2, 7, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.ranking-modal-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border-hover);
  border-radius: 28px;
  padding: 40px;
  width: 90%;
  max-width: 620px;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
  transform: translateY(30px) scale(0.95);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active .ranking-modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 15px;
}

.modal-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 3px;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.close-btn {
  background: transparent;
  border: none;
  font-size: 2rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s ease;
  outline: none;
}

.close-btn:hover {
  color: var(--neon-magenta);
}

.modal-body {
  max-height: 480px;
  overflow-y: auto;
  padding-right: 5px;
}

/* Custom Scrollbar for Modal Board */
.modal-body::-webkit-scrollbar {
  width: 6px;
}
.modal-body::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
}
.modal-body::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 3px;
}

.modal-table th {
  font-size: 0.85rem;
  letter-spacing: 2px;
  padding-bottom: 12px;
}

.modal-table td {
  padding: 13px 0;
  font-size: 0.95rem;
}

/* ==========================================================================
   PC Optimized Modal Styling
   ========================================================================== */
.pc-warning-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(3, 2, 6, 0.85);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pc-warning-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.pc-warning-card {
  background: var(--glass-bg);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  border: 2px solid var(--neon-magenta);
  border-radius: 28px;
  padding: 45px 35px;
  width: 90%;
  max-width: 460px;
  text-align: center;
  box-shadow: 0 0 35px rgba(255, 0, 127, 0.25), inset 0 0 20px rgba(255, 0, 127, 0.1);
  transform: translateY(30px) scale(0.9);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.15);
}

.pc-warning-modal.active .pc-warning-card {
  transform: translateY(0) scale(1);
}

.modal-icon-container {
  width: 76px;
  height: 76px;
  margin: 0 auto 25px auto;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.3), inset 0 0 10px rgba(0, 240, 255, 0.1);
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.03);
  animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.2), inset 0 0 5px rgba(0, 240, 255, 0.05);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.5), inset 0 0 15px rgba(0, 240, 255, 0.2);
    transform: scale(1.05);
  }
}

.modal-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 1.6rem;
  letter-spacing: 3px;
  color: var(--text-main);
  margin-bottom: 15px;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.15);
}

.modal-title span.cyan {
  color: var(--neon-cyan);
  text-shadow: 0 0 12px var(--neon-cyan), 0 0 24px rgba(0, 240, 255, 0.3);
}

.modal-message {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 30px;
  word-break: keep-all;
}

.modal-message strong {
  color: var(--text-main);
  font-weight: 600;
}

.modal-btn {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 2px;
  padding: 13px 35px;
  border-radius: 12px;
  border: 1px solid var(--neon-magenta);
  background: linear-gradient(135deg, var(--neon-magenta), var(--neon-purple));
  color: var(--text-main);
  cursor: pointer;
  width: 100%;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.3);
  outline: none;
}

.modal-btn:hover {
  box-shadow: 0 0 25px rgba(255, 0, 127, 0.6);
  transform: scale(1.02);
  border-color: #ff3399;
}

/* Toast Notification */
.toast-warmup {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 100000;
  background: rgba(12, 6, 24, 0.9);
  border: 1px solid var(--neon-green);
  border-radius: 12px;
  padding: 15px 25px;
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.3);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-warmup.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toast-icon {
  font-size: 1.2rem;
}

.toast-text {
  font-family: 'Rajdhani', 'Noto Sans KR', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 1.5px;
  color: var(--text-main);
}

/* ==========================================================================
   Responsive adjustments
   ========================================================================== */
@media (max-width: 1300px) {
  .left-spacer {
    display: none;
  }

  .game-wrapper {
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding-top: 20px;
  }

  .main-column {
    width: 100%;
    max-width: 800px;
  }

  .hud-panel {
    position: relative;
    width: 100%;
    margin-bottom: 10px;
  }

  .game-viewport {
    margin-top: 0;
  }

  .bottom-leaderboard {
    width: 100%;
    max-width: 800px;
    margin-top: 20px;
  }

  .ad-side-panel {
    margin-top: 20px;
    height: auto;
  }

  .ad-banner-container {
    height: 300px;
  }
}

@media (max-width: 840px) {
  .game-wrapper {
    padding-top: 20px;
  }

  .hud-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: stretch;
  }

  .timer-container {
    max-width: 100%;
    margin: 0;
  }

  /* Scale viewport down for smaller screens */
  .game-viewport {
    width: 90vw;
    height: 90vw;
    max-width: 800px;
    max-height: 800px;
  }
}