@import url('https://fonts.googleapis.com/css2?family=Courier+Prime:ital,wght@0,400;0,700;1,400;1,700&family=Orbitron:wght@400;500;700;900&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,600;0,700;1,400&display=swap');

/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
  /* Base page padding. Media queries below override this single value; the
     safe-area insets are added once, in the body rule, so no media query can
     accidentally drop them. */
  --page-pad: 10px;

  /* Default: Steampunk Theme */
  --bg-color: #1a1512;
  --bg-gradient: radial-gradient(circle, #2c211a 0%, #15100d 100%);
  --panel-bg: rgba(44, 33, 26, 0.85);
  --panel-border: 2px solid #5a4233;
  --panel-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), inset 0 1px 3px rgba(255, 255, 255, 0.05);
  --accent-color: #df9e38;
  --accent-glow: 0 0 15px rgba(223, 158, 56, 0.4);
  --text-main: #e2ccb5;
  --text-muted: #9c8470;
  --font-family: 'Courier Prime', monospace;
  
  --board-bg: #3c2f25;
  --board-border: 8px solid #5a4233;
  --board-shadow: 0 15px 35px rgba(0, 0, 0, 0.8), inset 0 4px 12px rgba(0, 0, 0, 0.5);
  --cell-bg: #1c1511;
  --cell-border: 1px solid #4a372b;
  --cell-hover: #5a4233;
  
  /* Peg styles */
  --peg-player-color: #4a90e2;
  --peg-player-grad: radial-gradient(circle at 35% 35%, #a5cde6 0%, #3a6890 50%, #152d42 100%);
  --peg-player-shadow: 0 4px 8px rgba(0, 0, 0, 0.75), inset 0 2px 3px rgba(255, 255, 255, 0.45);
  
  --peg-bot-color: #d0021b;
  --peg-bot-grad: radial-gradient(circle at 35% 35%, #fcae8b 0%, #bd6131 50%, #54220b 100%);
  --peg-bot-shadow: 0 4px 8px rgba(0, 0, 0, 0.75), inset 0 2px 3px rgba(255, 255, 255, 0.45);

  --peg-obstacle-grad: radial-gradient(circle at 35% 35%, #a6a6a6 0%, #595959 50%, #2b2b2b 100%);
  --peg-obstacle-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
  
  --btn-bg: #4c372a;
  --btn-text: #ffd5a1;
  --btn-border: 1px solid #7d5c47;
  --btn-hover-bg: #614636;
  --btn-active-bg: #38271d;
  
  --active-glow: 0 0 20px #df9e38;
}

/* --- CYBER NEON THEME --- */
[data-theme="cyber"] {
  --bg-color: #06040a;
  --bg-gradient: radial-gradient(circle at center, #100b1a 0%, #030206 100%);
  --panel-bg: rgba(13, 8, 24, 0.75);
  --panel-border: 1px solid rgba(0, 242, 254, 0.3);
  --panel-shadow: 0 10px 30px rgba(0, 242, 254, 0.1), inset 0 0 10px rgba(0, 242, 254, 0.05);
  --accent-color: #00f2fe;
  --accent-glow: 0 0 15px rgba(0, 242, 254, 0.6);
  --text-main: #e6e5eb;
  --text-muted: #8c829e;
  --font-family: 'Orbitron', sans-serif;
  
  --board-bg: #100b21;
  --board-border: 2px solid #00f2fe;
  --board-shadow: 0 0 25px rgba(0, 242, 254, 0.2), inset 0 0 20px rgba(0, 242, 254, 0.1);
  --cell-bg: #07050e;
  --cell-border: 1px solid rgba(0, 242, 254, 0.15);
  --cell-hover: rgba(0, 242, 254, 0.1);
  
  --peg-player-color: #00f2fe;
  --peg-player-grad: radial-gradient(circle, #e0ffff 0%, #00f2fe 70%, #0076a3 100%);
  --peg-player-shadow: 0 0 12px rgba(0, 242, 254, 0.8), 0 0 25px rgba(0, 242, 254, 0.4);
  
  --peg-bot-color: #ff007f;
  --peg-bot-grad: radial-gradient(circle, #ffe5f2 0%, #ff007f 70%, #9e0047 100%);
  --peg-bot-shadow: 0 0 12px rgba(255, 0, 127, 0.8), 0 0 25px rgba(255, 0, 127, 0.4);

  --peg-obstacle-grad: radial-gradient(circle, #d2d2d2 0%, #3e3d40 70%, #151516 100%);
  --peg-obstacle-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
  
  --btn-bg: rgba(13, 8, 24, 0.8);
  --btn-text: #00f2fe;
  --btn-border: 1px solid #00f2fe;
  --btn-hover-bg: rgba(0, 242, 254, 0.15);
  --btn-active-bg: rgba(0, 242, 254, 0.3);
  
  --active-glow: 0 0 25px rgba(0, 242, 254, 0.8);
}

/* --- MINIMALIST SLATE THEME --- */
[data-theme="slate"] {
  --bg-color: #f0f2f5;
  --bg-gradient: linear-gradient(135deg, #e0e4eb 0%, #f0f2f5 100%);
  --panel-bg: rgba(255, 255, 255, 0.8);
  --panel-border: 1px solid rgba(226, 232, 240, 0.8);
  --panel-shadow: 0 10px 30px rgba(0, 0, 0, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  --accent-color: #4f46e5;
  --accent-glow: 0 0 15px rgba(79, 70, 229, 0.2);
  --text-main: #1e293b;
  --text-muted: #64748b;
  --font-family: 'Plus Jakarta Sans', sans-serif;
  
  --board-bg: #ffffff;
  --board-border: 1px solid #e2e8f0;
  --board-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
  --cell-bg: #f8fafc;
  --cell-border: 1px solid #f1f5f9;
  --cell-hover: #f1f5f9;
  
  --peg-player-color: #4f46e5;
  --peg-player-grad: radial-gradient(circle at 35% 35%, #818cf8 0%, #4f46e5 70%, #312e81 100%);
  --peg-player-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
  
  --peg-bot-color: #0f172a;
  --peg-bot-grad: radial-gradient(circle at 35% 35%, #475569 0%, #0f172a 70%, #020617 100%);
  --peg-bot-shadow: 0 4px 10px rgba(15, 23, 42, 0.3);

  --peg-obstacle-grad: radial-gradient(circle at 35% 35%, #cbd5e1 0%, #64748b 70%, #334155 100%);
  --peg-obstacle-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
  
  --btn-bg: #ffffff;
  --btn-text: #4f46e5;
  --btn-border: 1px solid #e2e8f0;
  --btn-hover-bg: #f8fafc;
  --btn-active-bg: #f1f5f9;
  
  --active-glow: 0 0 15px rgba(79, 70, 229, 0.4);
}

/* --- GENERAL RESET & SETUP --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

html {
  background: var(--bg-color);
  background-image: var(--bg-gradient);
  min-height: 100vh;
}

body {
  font-family: var(--font-family);
  background: transparent;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  overflow-x: hidden;
  /* targetSdk 36 enforces edge-to-edge, so the window now extends behind the
     status bar, navigation bar and display cutout. viewport-fit=cover (set in
     index.html) exposes those as env(safe-area-inset-*). The plain padding
     below is the fallback for WebViews that do not support env(), which drop
     the longhand declaration entirely. */
  padding: var(--page-pad);
  padding-top: calc(var(--page-pad) + env(safe-area-inset-top, 0px));
  padding-right: calc(var(--page-pad) + env(safe-area-inset-right, 0px));
  padding-bottom: calc(var(--page-pad) + env(safe-area-inset-bottom, 0px));
  padding-left: calc(var(--page-pad) + env(safe-area-inset-left, 0px));
  transition: background 0.5s ease, color 0.5s ease, font-family 0.3s ease;
}

/* Background gears for Steampunk theme */
.bg-gears-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5; /* Increased to 5 to render above canvas and body backgrounds */
  pointer-events: none;
  display: block;
}

[data-theme="cyber"] .bg-gear {
  opacity: 0.05;
}

[data-theme="slate"] .bg-gears-container {
  display: none;
}

.bg-gear {
  position: absolute;
  opacity: 0.35; /* Set opacity directly on gears to prevent container composition bugs */
  transition: opacity 0.5s ease;
}

/* Use theme accent colors for high visibility and visual synergy */
.bg-gear path {
  fill: #df9e38;
  fill: var(--accent-color);
}

[data-theme="cyber"] .bg-gear path {
  fill: #00f2fe;
  fill: var(--accent-color);
}

[data-theme="slate"] .bg-gear path {
  fill: #4f46e5;
  fill: var(--accent-color);
}

/* Local spinner rotation inside the SVG viewBox to avoid transform-origin swings on the parent SVG element */
.gear-spinner {
  transform-origin: center; /* Use center keyword to ensure consistent rotation across browsers */
  animation: spin 30s linear infinite;
  display: block;
}

.gear-1 {
  width: 300px;
  height: 300px;
  top: -100px;
  left: -100px;
}

.gear-2 {
  width: 200px;
  height: 200px;
  bottom: -50px;
  right: -50px;
}

.gear-2 .gear-spinner {
  animation-direction: reverse;
  animation-duration: 20s;
}

/* --- CONTAINER LAYOUT --- */
.game-container {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 10;
  height: 100%;
  flex-grow: 1;
  justify-content: center;
  position: relative;
}

/* --- HEADER SECTION --- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 12px;
  box-shadow: var(--panel-shadow);
}

.title-container h1 {
  font-size: 1.1rem;
  letter-spacing: 1px;
  color: var(--accent-color);
  text-shadow: var(--accent-glow);
  text-transform: uppercase;
}

.title-container p {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.header-controls {
  display: flex;
  gap: 8px;
}

.icon-btn {
  background: var(--btn-bg);
  border: var(--btn-border);
  border-radius: 8px;
  color: var(--btn-text);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  outline: none;
  font-size: 1rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.icon-btn:hover {
  background: var(--btn-hover-bg);
  transform: translateY(-1px);
}

.icon-btn:active {
  background: var(--btn-active-bg);
  transform: translateY(1px);
}

.icon-btn.active {
  background: var(--accent-color);
  color: var(--bg-color);
  box-shadow: var(--accent-glow);
}

/* --- BOT PANEL (OPPONENT CHAT) --- */
.bot-panel {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 12px;
  padding: 8px 10px;
  box-shadow: var(--panel-shadow);
  position: relative;
  overflow: hidden;
}

.bot-avatar-container {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2);
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.3s ease;
}

.bot-panel.active-turn .bot-avatar-container {
  border-color: var(--accent-color);
  box-shadow: var(--accent-glow);
}

.bot-avatar {
  width: 100%;
  height: 100%;
  transition: transform 0.3s ease;
}

.bot-panel.active-turn .bot-avatar {
  animation: bob 2s ease-in-out infinite;
}

.bot-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.bot-name {
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--accent-color);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.bot-status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #64748b;
  flex-shrink: 0;
}

.bot-panel.active-turn .bot-status-indicator {
  background: #10b981;
  animation: pulse-green 1.5s infinite;
}

.bot-status-text {
  font-size: 0.62rem;
  color: var(--text-muted);
  font-weight: normal;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-left: 2px;
}

.bot-bubble {
  margin-top: 4px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  padding: 4px 8px;
  font-size: 0.68rem;
  color: var(--text-main);
  border-left: 3px solid var(--accent-color);
  white-space: normal;
  word-break: break-word;
  display: block;
  line-height: 1.25;
  min-height: 24px;
  transition: opacity 0.2s ease;
  scrollbar-width: none; /* Hide scrollbar for Firefox */
}
.bot-bubble::-webkit-scrollbar {
  display: none; /* Hide scrollbar for Chrome/Safari/Webview */
}

/* --- STEAM PRESSURE GAUGE --- */
.pressure-gauge {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  cursor: pointer;
  transition: transform 0.2s ease, filter 0.2s ease;
  margin-left: auto; /* Align it to the far right of the bot panel */
}

.pressure-gauge:hover {
  transform: translateY(0);
  filter: drop-shadow(0 0 4px rgba(223, 158, 56, 0.4));
}

.pressure-gauge.high-pressure {
  animation: gauge-shudder 0.12s linear infinite alternate;
}

#gauge-needle {
  transition: transform 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes gauge-shudder {
  0% { transform: translate(0.5px, 0.5px) rotate(0deg); }
  100% { transform: translate(-0.5px, -0.5px) rotate(0.5deg); }
}

/* Adjust visibility in non-steampunk themes */
[data-theme="cyber"] .pressure-gauge {
  opacity: 0.25;
  filter: hue-rotate(90deg); /* align to cyber colors */
}
[data-theme="slate"] .pressure-gauge {
  display: none;
}

/* --- CLOCKWORK GEAR ACCELERATION --- */
body.bot-thinking .bg-gear {
  opacity: 0.7 !important;
}
body.bot-thinking .gear-1 .gear-spinner {
  animation-duration: 3.5s !important;
}
body.bot-thinking .gear-2 .gear-spinner {
  animation-duration: 2.2s !important;
}

/* --- BOARD CONTAINER --- */
.board-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background: var(--board-bg);
  border: var(--board-border);
  border-radius: 16px;
  box-shadow: var(--board-shadow);
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  touch-action: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(10, 1fr);
  width: 100%;
  height: 100%;
  gap: 4px;
}

.cell {
  position: relative;
  background: var(--cell-bg);
  border: var(--cell-border);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.cell:hover {
  background-color: var(--cell-hover);
}

/* Touch select indicators */
.cell.selected-preview::after {
  content: '';
  position: absolute;
  width: 65%;
  height: 65%;
  border-radius: 50%;
  border: 2px dashed var(--peg-player-color);
  opacity: 0.6;
  animation: rotate-dashed 4s linear infinite;
}

/* Peg animations */
.peg {
  position: absolute;
  width: 80%;
  height: 80%;
  border-radius: 50%;
  z-index: 5;
  transform: translateY(0);
  animation: drop-in 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* Steampunk Screw Head Details */
body:not([data-theme="cyber"]):not([data-theme="slate"]) .peg::before {
  content: '';
  position: absolute;
  top: 12%;
  left: 12%;
  bottom: 12%;
  right: 12%;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.4);
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

body:not([data-theme="cyber"]):not([data-theme="slate"]) .peg::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 18%;
  right: 18%;
  height: 3px;
  background: rgba(0, 0, 0, 0.65);
  box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) rotate(35deg);
  border-radius: 1px;
}

.peg.player {
  background: var(--peg-player-grad);
  box-shadow: var(--peg-player-shadow);
}

.peg.bot {
  background: var(--peg-bot-grad);
  box-shadow: var(--peg-bot-shadow);
}

.peg.obstacle {
  background: var(--peg-obstacle-grad);
  box-shadow: var(--peg-obstacle-shadow);
  border-radius: 4px;
}

.peg.opponent-duplicate {
  filter: hue-rotate(120deg) brightness(1.2) contrast(1.1) !important;
}

/* Winning combination highlights */
.cell.winning-cell::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 6px;
  background: rgba(223, 158, 56, 0.2);
  border: 2px solid var(--accent-color);
  box-shadow: var(--accent-glow);
  z-index: 4;
  animation: glow-pulse 1s infinite alternate;
}

[data-theme="cyber"] .cell.winning-cell::before {
  background: rgba(0, 242, 254, 0.2);
  border: 2px solid var(--peg-player-color);
  box-shadow: 0 0 15px var(--peg-player-color);
}

[data-theme="slate"] .cell.winning-cell::before {
  background: rgba(79, 70, 229, 0.15);
  border: 2px solid var(--accent-color);
  box-shadow: 0 0 10px rgba(79, 70, 229, 0.3);
}

/* --- BOTTOM CONTROLS & INVENTORY --- */
.bottom-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.panel-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 10px;
}

.info-panel {
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 12px;
  padding: 8px 12px;
  box-shadow: var(--panel-shadow);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

.score-val {
  font-weight: bold;
  color: var(--accent-color);
  text-shadow: var(--accent-glow);
}

.mode-badge {
  font-size: 0.65rem;
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  border: 1px solid var(--text-muted);
  width: fit-content;
  color: var(--text-muted);
  text-transform: uppercase;
}

.mode-badge.tactical {
  color: #df9e38;
  border-color: #df9e38;
}

.mode-badge.pente {
  color: #10b981;
  border-color: #10b981;
}

[data-theme="cyber"] .mode-badge.tactical {
  color: #ff007f;
  border-color: #ff007f;
  text-shadow: 0 0 5px rgba(255, 0, 127, 0.5);
}

[data-theme="cyber"] .mode-badge.pente {
  color: #00f2fe;
  border-color: #00f2fe;
  text-shadow: 0 0 5px rgba(0, 242, 254, 0.5);
}


.confirm-action-container {
  display: flex;
  align-items: stretch;
}

.confirm-btn {
  width: 100%;
  background: var(--btn-bg);
  border: var(--btn-border);
  border-radius: 12px;
  color: var(--btn-text);
  font-family: var(--font-family);
  font-weight: bold;
  font-size: 0.85rem;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  text-transform: uppercase;
}

.confirm-btn.active-ready {
  background: var(--accent-color);
  color: var(--bg-color);
  border-color: transparent;
  box-shadow: var(--accent-glow);
  transform: translateY(0);
}

.confirm-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Tactical Power-up Inventory */
.inventory-panel {
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 12px;
  padding: 10px;
  box-shadow: var(--panel-shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.inventory-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.powerups-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.powerup-btn {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--text-muted);
  border-radius: 8px;
  padding: 6px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.powerup-btn:not(:disabled):hover {
  background: var(--btn-hover-bg);
  border-color: var(--accent-color);
}

.powerup-btn.selected {
  background: var(--accent-color);
  border-color: transparent;
  color: var(--bg-color);
  box-shadow: var(--accent-glow);
}

.powerup-btn.selected .powerup-icon {
  fill: var(--bg-color);
  stroke: var(--bg-color);
}

.powerup-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

#powerup-overdrive.ready {
  border-color: #df9e38 !important;
  color: #df9e38 !important;
  opacity: 1 !important;
  box-shadow: 0 0 15px rgba(223, 158, 56, 0.6), inset 0 0 10px rgba(223, 158, 56, 0.4) !important;
  animation: overdrive-pulse 1s infinite alternate;
  cursor: pointer;
}

#powerup-overdrive.ready .powerup-icon {
  fill: #df9e38 !important;
}

#powerup-overdrive.ready .powerup-count {
  background: #df9e38 !important;
  color: #120e0c !important;
}

@keyframes overdrive-pulse {
  0% {
    transform: translateY(0);
    box-shadow: 0 0 8px rgba(223, 158, 56, 0.4);
  }
  100% {
    transform: translateY(0);
    box-shadow: 0 0 20px rgba(223, 158, 56, 0.8), inset 0 0 12px rgba(223, 158, 56, 0.6);
  }
}

.powerup-icon {
  width: 20px;
  height: 20px;
  fill: var(--text-main);
  transition: all 0.2s ease;
}

.powerup-name {
  font-size: 0.6rem;
  font-weight: bold;
}

.powerup-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--accent-color);
  color: var(--bg-color);
  font-size: 0.55rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.powerup-btn.selected .powerup-count {
  background: var(--text-main);
}

/* Control Buttons Row */
.controls-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.control-btn {
  background: var(--btn-bg);
  border: var(--btn-border);
  border-radius: 10px;
  color: var(--btn-text);
  padding: 10px;
  font-family: var(--font-family);
  font-weight: bold;
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
  text-transform: uppercase;
}

.control-btn:hover {
  background: var(--btn-hover-bg);
}

.control-btn:active {
  background: var(--btn-active-bg);
  transform: translateY(1px);
}

.control-btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.pipe-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0; /* Remove gap so pipes connect perfectly */
  max-width: 280px;
  margin: 15px auto;
  aspect-ratio: 1;
  background: rgba(0, 0, 0, 0.55); /* Unified background */
  border: 3px solid var(--cell-border); /* Outer frame */
  border-radius: 12px;
  overflow: visible; /* Allow inlet/outlet and glow effects to bleed nicely */
  position: relative;
}

.pipe-cell {
  background: transparent;
  border: 1px dashed rgba(122, 92, 71, 0.25); /* Subtle grid separators */
  border-radius: 0; /* Flat edges so pipes connect perfectly */
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  aspect-ratio: 1;
  transition: all 0.2s ease;
  overflow: visible; /* Let glow effects align seamlessly */
}

.pipe-cell:hover {
  background: rgba(223, 158, 56, 0.08);
}

.pipe-cell.connected {
  border-color: rgba(16, 185, 129, 0.2); /* Soft connection gridline */
}

@keyframes pipe-pulse {
  0% { opacity: 0.85; filter: drop-shadow(0 0 4px var(--accent-color)); }
  50% { opacity: 1; filter: drop-shadow(0 0 10px var(--accent-color)); }
  100% { opacity: 0.85; filter: drop-shadow(0 0 4px var(--accent-color)); }
}

.pipe-cell.connected .pipe-flow-core {
  fill: var(--accent-color) !important;
  stroke: var(--accent-color) !important;
  animation: pipe-pulse 2s infinite ease-in-out;
}

.pipe-cell.start-valve {
  background: rgba(16, 185, 129, 0.05);
}

.pipe-cell.end-valve {
  background: rgba(239, 68, 68, 0.05);
}

.pipe-svg {
  width: 100%;
  height: 100%;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Inlet/Outlet Valve Styling */
.pipe-inlet-valve svg {
  filter: drop-shadow(0 0 5px #10b981);
}
.pipe-outlet-valve svg {
  transition: filter 0.25s ease;
}
.pipe-outlet-valve.connected svg {
  filter: drop-shadow(0 0 6px var(--accent-color));
}
.pipe-outlet-valve.connected .pipe-flow-core {
  fill: var(--accent-color) !important;
}
.pipe-outlet-valve.connected polygon {
  fill: var(--accent-color) !important;
}

/* Rusty / Blocked Pipe cells */
.pipe-cell.rusty {
  filter: sepia(0.65) saturate(1.8) hue-rotate(-15deg) contrast(1.1);
  background: rgba(139, 69, 19, 0.22) !important;
  cursor: not-allowed;
}
.pipe-cell.rusty::after {
  content: '⚙️';
  position: absolute;
  font-size: 0.55rem;
  top: 4px;
  right: 4px;
  opacity: 0.8;
  color: #df9e38;
}

/* Welded/Locked Pipe cells */
.pipe-cell.welded {
  box-shadow: inset 0 0 10px rgba(0, 242, 254, 0.45) !important;
  border: 1.5px solid #00f2fe !important;
}
.pipe-cell.welded::after {
  content: '🔒';
  position: absolute;
  font-size: 0.5rem;
  top: 4px;
  left: 4px;
  opacity: 0.8;
}

/* Pipe Toolbox Buttons */
.pipe-tool-btn:hover:not(:disabled) {
  background: rgba(223, 158, 56, 0.15) !important;
  border-color: var(--accent-color) !important;
  color: var(--accent-color) !important;
}
.pipe-tool-btn.selected {
  background: var(--accent-color) !important;
  border-color: transparent !important;
  color: var(--bg-color) !important;
  box-shadow: var(--accent-glow) !important;
}
.pipe-tool-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Steam Leak Particle Effect */
@keyframes steam-drift {
  0% { transform: translateY(0) translateY(0); opacity: 0.75; }
  100% { transform: translateY(-35px) translateY(0); opacity: 0; }
}
.steam-particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: rgba(245, 245, 245, 0.65);
  border-radius: 50%;
  pointer-events: none;
  z-index: 15;
  filter: blur(1.5px);
  animation: steam-drift 0.7s ease-out forwards;
}

/* Tool Shop Cards */
.tool-shop-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--cell-border);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
}
.tool-shop-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-color);
}
.tool-shop-card.locked {
  opacity: 0.6;
}
.tool-shop-card .tool-preview-wrapper {
  width: 32px;
  height: 32px;
  position: relative;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-color);
}
.tool-shop-card .tool-title {
  font-size: 0.65rem;
  font-weight: bold;
  color: var(--text-main);
}
.tool-shop-card .tool-status {
  font-size: 0.5rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* --- OVERLAYS & MODALS --- */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(12, 10, 9, 0.85); /* Slightly darker fallback for premium feel without blur */
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  will-change: opacity;
  backface-visibility: hidden;
  transform: translateZ(0); /* Force GPU compositing */
}

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

.modal {
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 16px;
  box-shadow: var(--panel-shadow);
  width: 100%;
  max-width: 360px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transform: translateY(0) translateZ(0);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  will-change: transform;
  backface-visibility: hidden;
}

.overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--cell-border);
  padding-bottom: 8px;
}

.modal-title {
  font-size: 1rem;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
}

.modal-body {
  font-size: 0.75rem;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-body h3 {
  color: var(--accent-color);
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-top: 4px;
}

.rules-list {
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* End Game Modal Details */
.game-result-title {
  font-size: 1.5rem;
  text-align: center;
  font-weight: 900;
  letter-spacing: 2px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.game-result-title.victory {
  color: #10b981;
  text-shadow: 0 0 15px rgba(16, 185, 129, 0.5);
}

.game-result-title.defeat {
  color: #ef4444;
  text-shadow: 0 0 15px rgba(239, 68, 68, 0.5);
}

.game-result-title.draw {
  color: var(--text-muted);
}

.result-message {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

/* Settings Options */
.settings-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: bold;
}

.settings-options-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.option-btn {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--text-muted);
  border-radius: 8px;
  padding: 8px 4px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.7rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.option-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

.option-btn.selected {
  background: var(--accent-color);
  color: var(--bg-color);
  border-color: transparent;
  box-shadow: var(--accent-glow);
}

.modal-footer-btn {
  width: 100%;
  margin-top: 8px;
}

/* Canvas Particles Overlay */
.particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
}

/* --- KEYFRAMES & ANIMATIONS --- */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes drop-in {
  0% {
    transform: translateY(0) translateY(-60px);
    opacity: 0;
  }
  60% {
    transform: translateY(0) translateY(5px);
    opacity: 1;
  }
  80% {
    transform: translateY(0) translateY(-2px);
  }
  100% {
    transform: translateY(0) translateY(0);
  }
}

/* Screen Shake Effect */
.shake {
  animation: screen-shake 0.3s cubic-bezier(.36,.07,.19,.97) both;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  perspective: 1000px;
}

@keyframes screen-shake {
  10%, 90% { transform: translate3d(-1px, 1px, 0); }
  20%, 80% { transform: translate3d(2px, -2px, 0); }
  30%, 50%, 70% { transform: translate3d(-3px, 3px, 0); }
  40%, 60% { transform: translate3d(3px, -1px, 0); }
}

@keyframes rotate-dashed {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes glow-pulse {
  from {
    box-shadow: 0 0 4px var(--accent-color), inset 0 0 2px var(--accent-color);
    opacity: 0.8;
  }
  to {
    box-shadow: 0 0 16px var(--accent-color), inset 0 0 8px var(--accent-color);
    opacity: 1;
  }
}

@keyframes pulse-green {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* --- RESPONSIVE ADJUSTMENTS --- */
@media (max-width: 360px) {
  :root {
    --page-pad: 6px;
  }
  .game-container {
    gap: 8px;
  }
  .bot-panel {
    padding: 8px 10px;
    gap: 8px;
  }
  .bot-avatar-container {
    width: 40px;
    height: 40px;
  }
  .bot-bubble {
    font-size: 0.7rem;
    padding: 4px 8px;
    height: 36px; /* Locked height to prevent board bouncing */
    overflow-y: auto;
    scrollbar-width: none;
    line-height: 1.25;
  }
  .cell {
    border-radius: 4px;
  }
  .powerup-btn {
    padding: 4px 2px;
  }
  .powerup-icon {
    width: 16px;
    height: 16px;
  }
  .powerup-name {
    font-size: 0.55rem;
  }
}

/* Landscape Mode Adjustments for Mobile */
@media (min-height: 480px) and (max-height: 600px) and (orientation: landscape) {
  :root {
    --page-pad: 10px;
  }
  body {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 15px;
  }
  .game-container {
    flex-direction: row;
    max-width: 850px;
    height: 90vh;
    align-items: center;
    gap: 15px;
  }
  header {
    display: none;
  }
  .board-container {
    width: 42vh;
    height: 42vh;
  }
  .left-side {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 45%;
  }
  .right-side {
    width: 55%;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
}

/* --- ONLINE MULTIPLAYER STYLES --- */
#online-code-box {
  margin-top: 10px;
  background: rgba(0, 0, 0, 0.3);
  padding: 8px;
  border-radius: 8px;
  border: 1px dashed var(--accent-color);
  text-align: center;
}

#online-room-code {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent-color);
  margin: 4px 0;
  letter-spacing: 2px;
}

#online-code-input {
  text-align: center;
  font-size: 0.9rem;
  padding: 8px;
  width: 100%;
  border: 1px solid var(--text-muted);
  background: rgba(0, 0, 0, 0.2);
  letter-spacing: 3px;
  color: var(--text-main);
  margin-bottom: 8px;
}

/* --- CAMPAIGN MAP STYLES --- */
.campaign-bosses-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.boss-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--cell-border);
  padding: 8px;
  border-radius: 10px;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
}

.boss-card:not(.locked):hover {
  border-color: var(--accent-color);
  background: rgba(223, 158, 56, 0.08);
}

.boss-card.selected {
  background: rgba(223, 158, 56, 0.15) !important;
  border: 2px solid var(--accent-color) !important;
}

.boss-card.locked {
  cursor: not-allowed;
  opacity: 0.4;
}

/* --- TROPHY ROOM / ACHIEVEMENTS --- */
.achievements-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ach-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--cell-border);
  padding: 8px;
  border-radius: 8px;
  transition: all 0.25s ease;
}

.ach-row.unlocked {
  border-color: var(--accent-color);
  background: rgba(223, 158, 56, 0.08);
  opacity: 1 !important;
}

.ach-row.unlocked .ach-icon {
  filter: none !important;
}

.ach-row.locked {
  opacity: 0.45;
}

.ach-icon {
  font-size: 1.2rem;
  transition: filter 0.3s ease;
}

.ach-badge {
  font-size: 0.55rem;
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
  font-weight: bold;
}

.ach-row.unlocked .ach-badge {
  background: var(--accent-color);
  color: var(--bg-color);
}

/* --- XP & Rank Up styles --- */
.result-xp-change {
  text-align: center;
  font-weight: bold;
  margin-bottom: 12px;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}

.result-xp-change.gain {
  color: #10b981;
  text-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.result-xp-change.loss {
  color: #ef4444;
  text-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
}

.result-xp-change.neutral {
  color: var(--text-muted);
}

.rankup-announcement {
  color: #00f2fe;
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: bold;
  text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
  animation: rankup-bounce 0.8s ease-in-out infinite;
}

@keyframes rankup-bounce {
  0% { transform: translateY(0); }
  50% { transform: translateY(0); }
  100% { transform: translateY(0); }
}

.steampunk-input {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--cell-border);
  border-radius: 8px;
  color: var(--text-main);
  padding: 8px 12px;
  font-size: 0.8rem;
  font-family: inherit;
  outline: none;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}

.steampunk-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 8px rgba(223, 158, 56, 0.3);
}

/* --- SKIN STYLES --- */
.peg.skin-nut {
  clip-path: polygon(50% 0%, 93.3% 25%, 93.3% 75%, 50% 100%, 6.7% 75%, 6.7% 25%);
  border-radius: 0 !important;
  background: linear-gradient(135deg, #df9e38 0%, #b87333 100%) !important;
  box-shadow: none !important;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4));
}
.peg.skin-nut::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 30%;
  width: 40%;
  height: 40%;
  border-radius: 50%;
  background: #252220; /* matches panel bg */
  box-shadow: inset 0 2px 3px rgba(0,0,0,0.8);
}
.peg.skin-nut::after {
  display: none !important; /* hide standard screw slot line */
}

.peg.skin-bulb {
  background: radial-gradient(circle at 50% 30%, #ffeb3b 10%, #e65100 80%) !important;
  box-shadow: 0 0 12px rgba(230, 81, 0, 0.6), inset 0 1px 3px rgba(255,255,255,0.5) !important;
  animation: bulb-glow 1.2s infinite alternate, drop-in 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards !important;
}
.peg.skin-bulb::before {
  content: '';
  position: absolute;
  top: 45%;
  left: 40%;
  width: 20%;
  height: 25%;
  border: 1.5px solid #ffeb3b;
  border-bottom: none;
  border-radius: 4px 4px 0 0;
  box-shadow: 0 0 5px #ffeb3b;
  background: none !important;
  box-shadow: none !important;
}
.peg.skin-bulb::after {
  display: none !important;
}

@keyframes bulb-glow {
  from { filter: drop-shadow(0 0 2px #e65100); opacity: 0.9; }
  to { filter: drop-shadow(0 0 10px #ffeb3b); opacity: 1; }
}

.peg.skin-cog {
  clip-path: polygon(50% 0%, 55% 12%, 69% 8%, 70% 21%, 83% 21%, 80% 34%, 92% 38%, 87% 50%, 92% 62%, 80% 66%, 83% 79%, 70% 79%, 69% 92%, 55% 88%, 50% 100%, 45% 88%, 31% 92%, 30% 79%, 17% 79%, 20% 66%, 8% 62%, 13% 50%, 8% 38%, 20% 34%, 17% 21%, 30% 21%, 31% 8%, 45% 12%);
  border-radius: 0 !important;
  background: linear-gradient(135deg, #ffd700 0%, #d4af37 50%, #aa7c11 100%) !important;
  box-shadow: none !important;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}
.peg.skin-cog::before {
  content: '';
  position: absolute;
  top: 35%;
  left: 35%;
  width: 30%;
  height: 30%;
  border-radius: 50%;
  background: #252220;
  box-shadow: inset 0 2px 3px rgba(0,0,0,0.8);
}
.peg.skin-cog::after {
  display: none !important;
}

.peg.skin-crystal {
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  border-radius: 0 !important;
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%) !important;
  box-shadow: none !important;
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.7));
}
.peg.skin-crystal::before, .peg.skin-crystal::after {
  display: none !important;
}

.peg.skin-microchip {
  clip-path: polygon(15% 15%, 85% 15%, 85% 85%, 15% 85%);
  border-radius: 4px !important;
  background: linear-gradient(135deg, #10b981 0%, #047857 100%) !important;
  box-shadow: none !important;
  filter: drop-shadow(0 0 6px rgba(16, 185, 129, 0.8));
}
.peg.skin-microchip::before {
  content: '';
  position: absolute;
  top: 35%;
  left: 35%;
  width: 30%;
  height: 30%;
  background: #f59e0b !important;
  border-radius: 2px;
  box-shadow: 0 0 4px #f59e0b !important;
}
.peg.skin-microchip::after {
  display: none !important;
}

.peg.skin-orb {
  border-radius: 50% !important;
  background: radial-gradient(circle at 35% 35%, #ec4899 10%, #6366f1 70%, #312e81 100%) !important;
  box-shadow: 0 0 12px rgba(236, 72, 153, 0.6), inset 0 1px 2px rgba(255,255,255,0.4) !important;
  animation: orb-glow 1.5s infinite alternate, drop-in 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards !important;
}
.peg.skin-orb::before, .peg.skin-orb::after {
  display: none !important;
}

@keyframes orb-glow {
  from { filter: drop-shadow(0 0 2px rgba(99, 102, 241, 0.5)); }
  to { filter: drop-shadow(0 0 10px rgba(236, 72, 153, 0.9)); }
}

.peg.skin-chrome {
  border-radius: 50% !important;
  background: radial-gradient(circle at 30% 30%, #ffffff 10%, #d1d5db 40%, #4b5563 85%, #111827 100%) !important;
  box-shadow: inset 0 -2px 5px rgba(0,0,0,0.6), 0 2px 4px rgba(0,0,0,0.5) !important;
}
.peg.skin-chrome::before, .peg.skin-chrome::after {
  display: none !important;
}

.peg.skin-carbon {
  border-radius: 50% !important;
  background: repeating-linear-gradient(45deg, #1e293b 0px, #0f172a 4px, #1e293b 8px) !important;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.8), 0 1px 2px rgba(255,255,255,0.1) !important;
  border: 1px solid #334155 !important;
}
.peg.skin-carbon::before {
  content: '';
  position: absolute;
  top: 40%;
  left: 40%;
  width: 20%;
  height: 20%;
  background: #ef4444 !important;
  border-radius: 50%;
  box-shadow: 0 0 4px #ef4444 !important;
}
.peg.skin-carbon::after {
  display: none !important;
}

/* --- SKIN DÜKKANI STİLLERİ --- */
.skin-shop-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--cell-border);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
}
.skin-shop-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-color);
}
.skin-shop-card.selected {
  border-color: #00f2fe;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}
.skin-shop-card.locked {
  opacity: 0.6;
  cursor: not-allowed;
}
.skin-shop-card .skin-preview-wrapper {
  width: 32px;
  height: 32px;
  position: relative;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.skin-shop-card .skin-preview-peg {
  position: relative;
  width: 100%;
  height: 100%;
  transform: translateY(0);
  animation: none !important;
}
.skin-shop-card .skin-title {
  font-size: 0.65rem;
  font-weight: bold;
  color: var(--text-main);
}
.skin-shop-card .skin-status {
  font-size: 0.5rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* --- SKOR GEÇMİŞİ STİLLERİ --- */
.history-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--cell-border);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.6rem;
}
.history-row .result-badge {
  font-weight: bold;
  padding: 1px 4px;
  border-radius: 3px;
  text-transform: uppercase;
}
.history-row .result-badge.win {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
}
.history-row .result-badge.loss {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}
.history-row .result-badge.draw {
  background: rgba(100, 116, 139, 0.2);
  color: var(--text-muted);
}
.history-row .history-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.history-row .history-xp {
  font-weight: bold;
}
.history-row .history-xp.gain {
  color: #10b981;
}
.history-row .history-xp.loss {
  color: #ef4444;
}

/* --- TREND GRAPH --- */
.trend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin: 0 3px;
}
.trend-dot.win { background: #10b981; box-shadow: 0 0 6px #10b981; }
.trend-dot.loss { background: #ef4444; box-shadow: 0 0 6px #ef4444; }
.trend-dot.draw { background: #64748b; }

/* --- GEAR SHIFT HIGHLIGHT --- */
.cell.shift-source {
  border-color: #df9e38 !important;
  box-shadow: 0 0 10px rgba(223, 158, 56, 0.6), inset 0 0 5px rgba(223, 158, 56, 0.4) !important;
}
[data-theme="cyber"] .cell.shift-source {
  border-color: #00f2fe !important;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.6), inset 0 0 5px rgba(0, 242, 254, 0.4) !important;
}
[data-theme="slate"] .cell.shift-source {
  border-color: #4f46e5 !important;
  box-shadow: 0 0 8px rgba(79, 70, 229, 0.4) !important;
}
.cell.shift-source .peg {
  animation: pulse-gear-shift 1s infinite alternate, drop-in 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards !important;
}
@keyframes pulse-gear-shift {
  from { transform: translateY(0); }
  to { transform: translateY(0); }
}

/* --- HEIGHT RESPONSIVENESS FOR SMALL SCREENS / AD BANNER --- */
@media (max-height: 740px) {
  :root {
    --page-pad: 4px;
  }
  .game-container {
    gap: 6px;
  }
  header {
    padding: 6px 10px;
  }
  .title-container h1 {
    font-size: 0.95rem;
  }
  .bot-panel {
    padding: 6px 10px;
    gap: 8px;
  }
  .bot-avatar-container {
    width: 36px;
    height: 36px;
  }
  .bot-bubble {
    font-size: 0.68rem;
    padding: 3px 6px;
    height: 33px; /* Locked height to prevent board bouncing */
    overflow-y: auto;
    scrollbar-width: none;
    line-height: 1.25;
  }
  .board-container {
    padding: 4px;
    border-width: 4px;
  }
  .grid {
    gap: 2px;
  }
  .cell {
    border-radius: 4px;
  }
  .info-panel {
    padding: 4px 8px;
  }
  .score-row {
    font-size: 0.7rem;
  }
  .confirm-btn {
    font-size: 0.75rem;
  }
  .inventory-panel {
    padding: 6px;
    gap: 4px;
  }
  .powerup-btn {
    padding: 4px 2px;
  }
  .powerup-icon {
    width: 14px;
    height: 14px;
  }
  .powerup-name {
    font-size: 0.55rem;
  }
  .control-btn {
    padding: 6px;
    font-size: 0.7rem;
  }
}

/* Welcome Screen & Main Menu Selection Styling */
.control-btn.selected {
  border-color: var(--accent-color) !important;
  background: rgba(223, 158, 56, 0.15) !important;
  box-shadow: 0 0 10px rgba(223, 158, 56, 0.25);
}

#welcome-resume-btn {
  background: rgba(16, 185, 129, 0.1) !important;
  border-color: #10b981 !important;
  color: #10b981 !important;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
  animation: pulse-green 2s infinite ease-in-out;
  display: none; /* Controlled by JS */
  justify-content: center;
  align-items: center;
  gap: 6px;
}

#welcome-resume-btn:hover {
  background: rgba(16, 185, 129, 0.2) !important;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}

@keyframes pulse-green {
  0% {
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.15);
  }
  50% {
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.4);
    border-color: #34d399 !important;
  }
  100% {
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.15);
  }
}

/* Stacking priority for Welcome Screen to prevent overlay overlapping */
#welcome-overlay {
  z-index: 90;
}

/* Header responsiveness to prevent overflow/shifting on mobile devices */
@media (max-width: 480px) {
  header {
    padding: 8px 10px;
  }
  .title-container h1 {
    font-size: 0.95rem;
  }
  .title-container p {
    font-size: 0.58rem;
  }
  .header-controls {
    gap: 4px;
  }
  .icon-btn {
    width: 30px;
    height: 30px;
    font-size: 0.85rem;
    border-radius: 6px;
  }
}

@media (max-width: 380px) {
  header {
    padding: 6px 8px;
  }
  .title-container h1 {
    font-size: 0.85rem;
  }
  .title-container p {
    display: none; /* Hide rank subtext on extremely narrow screens to save space */
  }
  .header-controls {
    gap: 3px;
  }
  .icon-btn {
    width: 27px;
    height: 27px;
    font-size: 0.8rem;
    border-radius: 5px;
  }
}

/* Control Panel Drawer Styling */
.control-drawer {
  position: absolute;
  top: 68px; /* Positioned just below the header */
  right: 14px;
  left: 14px;
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 12px;
  box-shadow: var(--panel-shadow);
  padding: 12px;
  z-index: 95; /* Above board/bot panel, below overlays */
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px) translateZ(0);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  will-change: transform, opacity;
  backface-visibility: hidden;
}

.control-drawer.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.drawer-btn {
  background: var(--btn-bg);
  border: var(--btn-border);
  border-radius: 8px;
  color: var(--btn-text);
  padding: 10px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.72rem;
  font-family: inherit;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.drawer-btn:hover {
  background: var(--btn-hover-bg);
  transform: translateY(-1px);
}

.drawer-btn-icon {
  font-size: 1.1rem;
}

.drawer-btn-text {
  font-weight: 500;
}

/* Make the cog spin when menu is active */
#menu-toggle-btn.active {
  transform: rotate(90deg);
  background: var(--btn-hover-bg);
  border-color: var(--accent-color);
  box-shadow: 0 0 8px var(--accent-color);
}

/* VectorVisor Threat Highlight */
.cell.threat-warning {
  border-color: #ef6c00 !important;
  box-shadow: inset 0 0 8px rgba(239, 108, 0, 0.4) !important;
  animation: pulse-orange 1.5s infinite alternate !important;
}

@keyframes pulse-orange {
  0% { box-shadow: inset 0 0 4px rgba(239, 108, 0, 0.3); }
  100% { box-shadow: inset 0 0 12px rgba(239, 108, 0, 0.7); }
}

/* Overdrive Ready Pressure Gauge Glow */
.pressure-gauge.overdrive-ready {
  border-color: #df9e38 !important;
  box-shadow: 0 0 15px rgba(223, 158, 56, 0.6), inset 0 0 10px rgba(223, 158, 56, 0.4) !important;
  animation: overdrive-shudder 0.15s infinite alternate !important;
}

@keyframes overdrive-shudder {
  0% { transform: translate(0.5px, 0.5px) rotate(0deg); }
  100% { transform: translate(-0.5px, -0.5px) rotate(0.4deg); }
}

/* Overheat Preview Cell Grid Highlighting */
.cell.overheat-preview {
  border-color: #f97316 !important;
  box-shadow: inset 0 0 8px rgba(249, 115, 22, 0.5) !important;
  background-color: rgba(249, 115, 22, 0.15) !important;
}

/* --- TUTORIAL CARD & HIGHLIGHT --- */
.tutorial-card {
  position: absolute;
  top: 72px; /* Floats below the header/panel drawer */
  left: 14px;
  right: 14px;
  background: var(--panel-bg);
  border: 2px solid var(--accent-color);
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.75), 0 0 15px rgba(223, 158, 56, 0.25);
  padding: 14px;
  z-index: 98; /* Above board and cogs, below screen overlays */
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: slide-down-fade 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  will-change: transform, opacity;
  backface-visibility: hidden;
  transform: translateZ(0);
}

@keyframes slide-down-fade {
  from { transform: translateY(-15px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.tutorial-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px dashed var(--cell-border);
  padding-bottom: 4px;
}

.tutorial-card-title {
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tutorial-step-indicator {
  font-size: 0.62rem;
  color: var(--text-muted);
  font-weight: bold;
}

.tutorial-card-body {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--text-main);
}

.tutorial-card-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 4px;
}

/* Pulse Highlight for cell/button guidance */
.tutorial-highlight {
  position: relative;
}

.tutorial-highlight::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border: 3px solid #ef4444 !important;
  border-radius: inherit;
  box-shadow: 0 0 12px #ef4444;
  animation: tutorial-pulse 1s infinite alternate;
  pointer-events: none;
  z-index: 15;
}

@keyframes tutorial-pulse {
  from { transform: translateY(0); opacity: 0.4; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive adjustments for Steam Valve Repair Modal to fit mobile screens perfectly without scrolling */
@media (max-height: 780px), (max-width: 480px) {
  .diagnostics-modal {
    padding: 10px 14px !important;
    gap: 6px !important;
  }
  .diagnostics-modal .modal-header {
    padding-bottom: 4px !important;
    margin-bottom: 4px !important;
  }
  .diagnostics-modal .modal-title {
    font-size: 0.95rem !important;
  }
  .diagnostics-modal p {
    font-size: 0.58rem !important;
    margin-bottom: 2px !important;
  }
  .diagnostics-modal .pipe-pressure-container {
    margin: 4px 0 !important;
    gap: 2px !important;
  }
  .diagnostics-modal .pipe-grid {
    max-width: 220px !important;
    margin: 6px auto !important;
  }
  .diagnostics-modal #pipe-toolbox {
    margin-top: 6px !important;
    padding-top: 6px !important;
    gap: 10px !important;
  }
  .diagnostics-modal .pipe-tool-btn {
    padding: 3px 8px !important;
    font-size: 0.55rem !important;
  }
  .diagnostics-modal .control-btn {
    padding: 5px 10px !important;
    font-size: 0.58rem !important;
    margin-top: 4px !important;
  }
  #pipe-reset-btn {
    margin-top: 4px !important;
  }
}