/* =========================================================
   DIAMOND & GEMSTONE MERGE GAME - STYLESHEET
   Aesthetics: Mystic Dungeon Portal, Ancient Carved Stone, Glowing Crystals
   ========================================================= */

:root {
  --bg-dark: #07090e;
  --bg-arena: #0b0d18;
  --portal-purple: #7a1ee6;
  --portal-glow: #b64bf7;
  --stone-dark: #121622;
  --stone-mid: #1c2233;
  --stone-light: #2c364e;
  --gold: #ffd154;
  --gold-glow: rgba(255, 209, 84, 0.4);
  --cyan: #38ef7d;
  --neon-cyan: #00f2fe;
  --font-title: 'Cinzel', serif;
  --font-ui: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-bg: rgba(16, 21, 35, 0.82);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-dark);
  font-family: var(--font-ui);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Background Atmosphere */
body::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(circle at 50% 85%, rgba(139, 31, 230, 0.28) 0%, rgba(20, 10, 40, 0.6) 45%, rgba(6, 7, 13, 0.95) 85%),
    radial-gradient(circle at 50% 10%, rgba(0, 180, 255, 0.08) 0%, transparent 60%);
  z-index: -2;
  pointer-events: none;
}

/* Outer Layout Container */
.game-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1200px;
  height: 100vh;
  max-height: 940px;
  padding: 16px;
}

/* Sidebars */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 220px;
  height: 720px;
  flex-shrink: 0;
}

.glass-panel {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 18px 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
}

.panel-title {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-align: center;
  color: var(--gold);
  margin-bottom: 12px;
  text-shadow: 0 0 12px var(--gold-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.panel-subtitle {
  font-family: var(--font-title);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  color: #a5b4fc;
  margin-bottom: 10px;
  text-align: center;
}

/* Evolution Chain List */
.evolution-panel {
  height: 100%;
  overflow: hidden;
}

.evolution-chain {
  flex: 1;
  overflow-y: auto;
  padding-right: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.evolution-chain::-webkit-scrollbar {
  width: 4px;
}
.evolution-chain::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.evo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: transform 0.2s, background 0.2s;
}

.evo-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(3px);
}

.evo-item.active-unlocked {
  border-color: rgba(255, 209, 84, 0.3);
  background: rgba(255, 209, 84, 0.06);
}

.evo-preview {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.evo-info {
  display: flex;
  flex-direction: column;
}

.evo-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: #f1f5f9;
}

.evo-pts {
  font-size: 0.68rem;
  color: #94a3b8;
}

/* Right Sidebar: Next Gem */
.next-gem-preview-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.next-gem-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: #38ef7d;
  margin-top: 6px;
  text-shadow: 0 0 8px rgba(56, 239, 125, 0.4);
}

.controls-tip-panel {
  flex: 1;
}

.tip-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.76rem;
  color: #cbd5e1;
  line-height: 1.4;
}

.tip-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.tip-list kbd {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  padding: 2px 5px;
  font-size: 0.7rem;
  font-family: monospace;
}

/* =========================================================
   CENTER MAIN ARENA
   ========================================================= */
.game-arena-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  height: 100%;
  max-height: 780px;
}

/* HUD Top Header */
.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 440px;
  padding: 0 4px;
}

.score-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(16, 21, 35, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 5px 12px;
  min-width: 88px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.main-score .score-value {
  color: #fff;
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 1px;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
}

.best-score .score-value {
  color: var(--gold);
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 800;
  text-shadow: 0 0 10px var(--gold-glow);
}

/* Chance Box */
.chance-score-card {
  border-color: rgba(255, 0, 127, 0.4);
  box-shadow: 0 4px 15px rgba(255, 0, 127, 0.2);
  transition: all 0.3s ease;
}

.chance-score-card .chance-val {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 900;
  color: #ff007f;
  text-shadow: 0 0 12px rgba(255, 0, 127, 0.6);
  letter-spacing: 1px;
  transition: all 0.3s;
}

.chance-score-card .chance-val.active {
  color: #ffd154;
  text-shadow: 0 0 12px rgba(255, 209, 84, 0.8);
  animation: chanceGlowPulse 1.8s infinite alternate ease-in-out;
}

@keyframes chanceGlowPulse {
  0% { transform: scale(1); filter: drop-shadow(0 0 4px rgba(255, 209, 84, 0.4)); }
  100% { transform: scale(1.08); filter: drop-shadow(0 0 10px rgba(255, 0, 127, 0.9)); }
}

.chance-score-card .chance-val.used {
  color: #64748b;
  text-shadow: none;
  font-size: 0.95rem;
}

.score-label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: #94a3b8;
}

/* Combo Badge */
.hud-center-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
}

.combo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  background: linear-gradient(135deg, #ff007f, #7928ca);
  box-shadow: 0 0 16px rgba(255, 0, 127, 0.6);
  opacity: 0;
  transform: scale(0.6);
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.combo-badge.active {
  opacity: 1;
  transform: scale(1);
  animation: pulseCombo 0.4s ease infinite alternate;
}

@keyframes pulseCombo {
  0% { transform: scale(1); box-shadow: 0 0 14px rgba(255, 0, 127, 0.6); }
  100% { transform: scale(1.08); box-shadow: 0 0 24px rgba(255, 0, 127, 0.9); }
}

.combo-text {
  font-family: var(--font-title);
  font-size: 0.7rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
}

.combo-multiplier {
  font-size: 0.9rem;
  font-weight: 900;
  color: var(--gold);
}

/* =========================================================
   ARENA FRAME & PILLARS (Matching Screenshot)
   ========================================================= */
.arena-frame {
  position: relative;
  width: 440px;
  height: 640px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 
    0 0 0 2px #d21d38, /* Red outline exactly as in screenshot border */
    0 20px 50px rgba(0, 0, 0, 0.9),
    0 0 35px rgba(122, 30, 230, 0.3);
  background-color: #030407;
  cursor: crosshair;
  touch-action: none;
}

/* Dungeon Stone Pillars on Left & Right */
.arena-frame::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 62px; height: 100%;
  background: 
    linear-gradient(90deg, #0e121b 0%, #1c2333 45%, #29344c 80%, #0d121c 100%);
  box-shadow: inset -5px 0 15px rgba(0,0,0,0.8), 6px 0 15px rgba(0, 0, 0, 0.7);
  z-index: 5;
  pointer-events: none;
  border-right: 2px solid #3d4a63;
  /* Stone blocks horizontal brick grooves */
  background-image: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 55px,
      rgba(0, 0, 0, 0.8) 55px,
      rgba(0, 0, 0, 0.8) 58px,
      rgba(255, 255, 255, 0.08) 58px,
      rgba(255, 255, 255, 0.08) 59px
    ),
    linear-gradient(90deg, #0f1420 0%, #20293c 45%, #2f3c55 80%, #101622 100%);
}

.arena-frame::after {
  content: '';
  position: absolute;
  top: 0; right: 0; width: 62px; height: 100%;
  background: 
    linear-gradient(270deg, #0e121b 0%, #1c2333 45%, #29344c 80%, #0d121c 100%);
  box-shadow: inset 5px 0 15px rgba(0,0,0,0.8), -6px 0 15px rgba(0, 0, 0, 0.7);
  z-index: 5;
  pointer-events: none;
  border-left: 2px solid #3d4a63;
  /* Stone blocks horizontal brick grooves */
  background-image: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 55px,
      rgba(0, 0, 0, 0.8) 55px,
      rgba(0, 0, 0, 0.8) 58px,
      rgba(255, 255, 255, 0.08) 58px,
      rgba(255, 255, 255, 0.08) 59px
    ),
    linear-gradient(270deg, #0f1420 0%, #20293c 45%, #2f3c55 80%, #101622 100%);
}

/* Dungeon Bottom Ground & Purple Mystical Portal Aura */
#gameCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: 
    radial-gradient(ellipse at 50% 92%, #a824e8 0%, #6812a6 25%, #2a0b4d 50%, #05070e 85%);
}

#fxCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 6;
  pointer-events: none;
}

/* Danger Overflow Line */
.danger-line {
  position: absolute;
  top: 110px;
  left: 62px;
  right: 62px;
  height: 2px;
  background: rgba(239, 68, 68, 0.4);
  border-top: 1px dashed rgba(239, 68, 68, 0.6);
  z-index: 4;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, opacity 0.3s;
}

.danger-line.warning {
  background: rgba(239, 68, 68, 0.85);
  border-top: 2px dashed #ff2a2a;
  box-shadow: 0 0 15px rgba(255, 42, 42, 0.8);
  animation: pulseDanger 0.6s infinite alternate;
}

@keyframes pulseDanger {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

.danger-label {
  display: none;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: #ff4757;
  background: rgba(0, 0, 0, 0.7);
  padding: 1px 6px;
  border-radius: 4px;
}

.danger-line.warning .danger-label {
  display: block;
}

/* Dropper Pointer & Indicator (Matching screenshot) */
.dropper-pointer {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 7;
  pointer-events: none;
  transition: transform 0.04s ease-out;
}

.dropper-arrow {
  width: 44px;
  height: 48px;
  color: #4a5568;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.6));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(180deg, #374151 0%, #1f2937 100%);
  clip-path: polygon(25% 0%, 75% 0%, 75% 55%, 100% 55%, 50% 100%, 0% 55%, 25% 55%);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.3);
}

.dropper-arrow svg {
  display: none;
}

.preview-gem-slot {
  position: absolute;
  top: 14px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-gem-slot canvas {
  width: 18px;
  height: 18px;
}

.aim-guide-line {
  width: 2px;
  height: 520px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.35) 0,
    rgba(255, 255, 255, 0.35) 6px,
    transparent 6px,
    transparent 12px
  );
  margin-top: 4px;
  opacity: 0.6;
}

/* Bottom Controls */
.hud-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
}

.btn-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-size: 1.15rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-action {
  padding: 0 20px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255, 209, 84, 0.3);
  background: linear-gradient(135deg, rgba(255, 209, 84, 0.2), rgba(255, 140, 0, 0.1));
  color: var(--gold);
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: all 0.2s;
}

.btn-action:hover {
  background: linear-gradient(135deg, rgba(255, 209, 84, 0.35), rgba(255, 140, 0, 0.25));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--gold-glow);
}

/* =========================================================
   MODALS (Game Over & Guide)
   ========================================================= */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(3, 5, 10, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.modal-card {
  width: 90%;
  max-width: 380px;
  background: linear-gradient(180deg, #182033 0%, #0d121d 100%);
  border: 1px solid rgba(255, 209, 84, 0.3);
  border-radius: 20px;
  padding: 28px 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(255, 209, 84, 0.2);
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-header h2 {
  font-family: var(--font-title);
  font-size: 1.7rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ff4757;
  text-shadow: 0 0 15px rgba(255, 71, 87, 0.5);
  margin-bottom: 20px;
}

.modal-crown {
  font-size: 2.4rem;
  margin-bottom: 4px;
  animation: floatCrown 2s ease-in-out infinite alternate;
}

@keyframes floatCrown {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.modal-stats {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
  background: rgba(0, 0, 0, 0.3);
  padding: 16px;
  border-radius: 12px;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-label {
  font-size: 0.8rem;
  color: #94a3b8;
  font-weight: 600;
}

.stat-number {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 800;
}

.score-highlight {
  color: var(--gold);
  font-size: 1.5rem;
  text-shadow: 0 0 10px var(--gold-glow);
}

.highest-gem-display {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, #ffd154, #ff8c00);
  color: #111;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 1.5px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(255, 209, 84, 0.4);
  transition: all 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 209, 84, 0.6);
}

/* Guide Modal Card */
.guide-modal-card {
  max-width: 420px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.guide-modal-card .modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.guide-modal-card .modal-header h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--gold);
}

.btn-close {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.2rem;
  cursor: pointer;
}

.evolution-chain-modal {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 6px;
}

/* =========================================================
   ONE CHANCE (REVIVE) MODAL STYLES (3s Countdown)
   ========================================================= */
.one-chance-card {
  max-width: 390px;
  background: linear-gradient(180deg, #201335 0%, #0d0a1a 100%);
  border: 2px solid #ff007f;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9), 0 0 35px rgba(255, 0, 127, 0.5), inset 0 0 20px rgba(255, 0, 127, 0.2);
  animation: chanceCardPulse 1s infinite alternate;
}

@keyframes chanceCardPulse {
  0% { box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9), 0 0 30px rgba(255, 0, 127, 0.4); }
  100% { box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9), 0 0 45px rgba(255, 209, 84, 0.6); }
}

.chance-lightning-icon {
  font-size: 2.8rem;
  margin-bottom: 6px;
  animation: lightningShake 0.4s infinite alternate ease-in-out;
  filter: drop-shadow(0 0 15px #ffd154);
}

@keyframes lightningShake {
  0% { transform: scale(1) rotate(-5deg); }
  100% { transform: scale(1.15) rotate(5deg); }
}

.chance-title {
  font-family: var(--font-title);
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ffd154;
  text-shadow: 0 0 15px var(--gold-glow);
  margin-bottom: 8px;
}

.chance-subtitle {
  font-size: 0.85rem;
  color: #cbd5e1;
  line-height: 1.4;
  margin-bottom: 18px;
}

.chance-subtitle strong {
  color: #ff4757;
  font-size: 1.1rem;
}

.chance-timer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.chance-timer-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3px solid #ff007f;
  background: rgba(255, 0, 127, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(255, 0, 127, 0.6);
  animation: circleCountPulse 0.5s infinite alternate;
}

@keyframes circleCountPulse {
  0% { transform: scale(0.96); }
  100% { transform: scale(1.04); border-color: #ffd154; box-shadow: 0 0 25px rgba(255, 209, 84, 0.8); }
}

.chance-seconds-number {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 0 12px #fff;
}

.chance-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.chance-progress-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #ff007f, #ffd154);
  box-shadow: 0 0 10px #ffd154;
  transition: width 0.1s linear;
}

.btn-chance-claim {
  background: linear-gradient(135deg, #ff007f 0%, #ff5252 50%, #ffd154 100%);
  font-size: 1.1rem;
  letter-spacing: 2px;
  padding: 16px;
  box-shadow: 0 8px 30px rgba(255, 0, 127, 0.6);
  animation: claimBtnPop 0.8s infinite alternate ease-in-out;
}

@keyframes claimBtnPop {
  0% { transform: scale(1); }
  100% { transform: scale(1.035); box-shadow: 0 10px 35px rgba(255, 209, 84, 0.8); }
}

.btn-chance-claim:hover {
  transform: scale(1.05) translateY(-2px) !important;
}

/* =========================================================
   RESPONSIVE DESIGN (Mobile & Tablets)
   ========================================================= */
@media (max-width: 960px) {
  .sidebar {
    display: none;
  }
  
  .game-wrapper {
    gap: 0;
    padding: 8px;
    height: 100%;
  }

  .game-arena-container {
    width: 100%;
    max-width: 420px;
    height: 98vh;
  }

  .hud-header {
    width: 100%;
  }

  .arena-frame {
    width: 100%;
    flex: 1;
    height: auto;
  }
}