/* ==========================================================================
   Deep Blue Survival: CSS Design System
   Theme: Bioluminescent Deep Sea, Glassmorphism, Fluid Animations
   ========================================================================== */

/* Variables */
:root {
  --color-bg-darkest: #01060d;
  --color-bg-dark: #031326;
  --color-bg-medium: #06203f;
  
  --color-text-light: #f5f8fc;
  --color-text-muted: #8ba3c7;
  
  --color-primary: #00f2fe;     /* Glowing Cyan */
  --color-primary-rgb: 0, 242, 254;
  --color-secondary: #7f00ff;   /* Bioluminescent Violet */
  --color-secondary-rgb: 127, 0, 255;
  
  --color-danger: #ff3366;      /* Warning Pink-Red */
  --color-danger-rgb: 255, 51, 102;
  --color-success: #00e676;     /* Safe Green */
  --color-success-rgb: 0, 230, 118;
  
  --font-display: 'Outfit', 'Noto Sans KR', sans-serif;
  --font-body: 'Noto Sans KR', sans-serif;
  
  --glass-bg: rgba(3, 19, 38, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --glass-blur: blur(16px);
}

/* Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--color-bg-darkest);
  color: var(--color-text-light);
  font-family: var(--font-body);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ==========================================================================
   Background & Water Effects
   ========================================================================== */
.water-bg-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: radial-gradient(circle at 50% 10%, var(--color-bg-medium) 0%, var(--color-bg-darkest) 80%);
  overflow: hidden;
}

/* Dynamic Image Background layer */
.water-bg-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('assets/bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  mix-blend-mode: color-dodge;
  filter: blur(2px);
  z-index: 0;
}

.overlay-tint {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  transition: background-color 1s ease, filter 1s ease;
}

/* Environmental Tint States */
.overlay-tint.tint-toxic {
  background-color: rgba(142, 255, 102, 0.15);
  filter: contrast(1.1) saturate(1.2);
}
.overlay-tint.tint-oil {
  background-color: rgba(0, 0, 0, 0.7);
  filter: blur(4px) brightness(0.6);
}
.overlay-tint.tint-acid {
  background-color: rgba(198, 40, 40, 0.18);
}
.overlay-tint.tint-net {
  background-color: rgba(255, 100, 0, 0.12);
}
.overlay-tint.tint-thermal {
  background-color: rgba(255, 0, 0, 0.15);
  filter: saturate(1.3);
}
.overlay-tint.tint-noise {
  filter: url(#noise-filter); /* can simulate screen shake/distortion */
}

/* CSS Bubble Particles */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.bubble {
  position: absolute;
  bottom: -50px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  pointer-events: none;
  box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.6);
  animation: floatUp 12s linear infinite;
}

@keyframes floatUp {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-110vh) translateX(var(--drift, 50px)) scale(1.1);
    opacity: 0;
  }
}

/* ==========================================================================
   Sound Controller (Audio System)
   ========================================================================== */
.audio-control-wrapper {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 100;
}

.audio-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.audio-btn:hover {
  transform: scale(1.1);
  border-color: rgba(var(--color-primary-rgb), 0.5);
  box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.3);
}

.audio-icon {
  width: 20px;
  height: 20px;
  position: relative;
  display: block;
}

/* Sound Waves Animation when active */
.audio-icon::before,
.audio-icon::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}

.audio-icon::before {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
}

.audio-icon::after {
  width: 18px;
  height: 18px;
  border-left-color: transparent;
  border-bottom-color: transparent;
}

.btn-muted .audio-icon::after {
  border-color: var(--color-text-muted);
  width: 14px;
  height: 14px;
  transform: translate(-50%, -50%) rotate(45deg);
  border-left-color: var(--color-text-muted);
  border-top-color: transparent;
  border-right-color: transparent;
}

.btn-muted .audio-icon::before {
  background-color: var(--color-text-muted);
}

/* Pulse hint when sound is off to invite user to turn it on */
.audio-pulse {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid var(--color-primary);
  top: 0;
  left: 0;
  opacity: 0;
  pointer-events: none;
}

.btn-muted .audio-pulse {
  animation: pulseWarning 2s infinite;
}

@keyframes pulseWarning {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

/* ==========================================================================
   Layout Containers
   ========================================================================== */
.game-container {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 900px;
  height: 90%;
  max-height: 720px;
  padding: 20px;
  display: flex;
  flex-direction: column;
}

/* Glassmorphism Panel Template */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  backdrop-filter: var(--glass-blur);
  border-radius: 20px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

/* Screen Management */
.screen {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  height: 100%;
  flex-direction: column;
  justify-content: center;
}

.screen.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   1. Intro Screen
   ========================================================================== */
.intro-content {
  padding: 48px;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  animation: floatCard 6s ease-in-out infinite;
}

@keyframes floatCard {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.logo-wrapper {
  margin-bottom: 28px;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(var(--color-primary-rgb), 0.12);
  border: 1px solid rgba(var(--color-primary-rgb), 0.3);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 2px;
  border-radius: 50px;
  margin-bottom: 16px;
  text-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.3);
}

.game-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  text-transform: uppercase;
}

.game-title .highlight {
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 10px rgba(var(--color-primary-rgb), 0.3));
}

.game-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-top: 10px;
  letter-spacing: 4px;
  font-weight: 300;
  padding-left: 4px;
}

.intro-description {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  word-break: keep-all;
}

.intro-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ==========================================================================
   Buttons System
   ========================================================================== */
.btn {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
}

.primary-btn {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #000;
  font-weight: 800;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(var(--color-primary-rgb), 0.3);
}

.primary-btn:active {
  transform: translateY(0);
}

.btn-glow::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn-glow:hover::after {
  transform: translateX(100%);
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--color-text-light);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.text-btn-danger {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid rgba(var(--color-danger-rgb), 0.2);
}

.text-btn-danger:hover {
  background: rgba(var(--color-danger-rgb), 0.1);
  border-color: var(--color-danger);
}

/* ==========================================================================
   2. Gameplay Screen
   ========================================================================== */
.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  padding: 12px 24px;
  border-radius: 14px;
}

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

.stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

.stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.4);
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 55%;
}

.progress-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.progress-bar-track {
  flex-grow: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  border-radius: 10px;
  box-shadow: 0 0 10px var(--color-primary);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-percent {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-light);
  min-width: 32px;
  text-align: right;
}

/* 1st Person Perspective Viewport */
.first-person-viewport {
  flex-grow: 1;
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  margin-bottom: 16px;
  min-height: 240px;
}

.viewport-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: background-image 1s cubic-bezier(0.4, 0, 0.2, 1), filter 1s ease;
  z-index: 1;
}

.sunrays {
  position: absolute;
  top: -30%;
  left: 0;
  width: 100%;
  height: 150%;
  background: repeating-linear-gradient(
    105deg,
    rgba(255, 255, 255, 0) 0px,
    rgba(255, 255, 255, 0) 40px,
    rgba(255, 255, 255, 0.06) 60px,
    rgba(255, 255, 255, 0.06) 100px
  );
  filter: blur(10px);
  z-index: 2;
  pointer-events: none;
  animation: waveSunrays 15s ease-in-out infinite alternate;
}

@keyframes waveSunrays {
  0% {
    transform: rotate(-5deg) translateX(-10px);
    opacity: 0.4;
  }
  100% {
    transform: rotate(5deg) translateX(10px);
    opacity: 0.8;
  }
}

.vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, transparent 50%, rgba(1, 6, 13, 0.85) 100%);
  z-index: 3;
  pointer-events: none;
  border-radius: 20px;
}

/* Fish POV HUD Overlay */
.hud-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  pointer-events: none;
}

.hud-scanner {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--color-primary-rgb), 0.3), transparent);
  box-shadow: 0 0 10px var(--color-primary);
  animation: scanHUD 6s linear infinite;
}

@keyframes scanHUD {
  0% {
    top: 0%;
    opacity: 0;
  }
  5% {
    opacity: 0.8;
  }
  95% {
    opacity: 0.8;
  }
  100% {
    top: 100%;
    opacity: 0;
  }
}

.hud-compass {
  position: absolute;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border: 1px dashed rgba(var(--color-primary-rgb), 0.4);
  border-radius: 50%;
  opacity: 0.5;
  animation: spinCompass 20s linear infinite;
}

.hud-compass::before {
  content: '';
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

@keyframes spinCompass {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Narrative Card */
.narrative-panel {
  padding: 20px 24px;
  margin-bottom: 16px;
  min-height: 100px;
  display: flex;
  align-items: center;
}

.narrative-text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-light);
  word-break: keep-all;
}

/* Choices Panel */
.choices-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.choice-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 14px 20px;
  color: var(--color-text-light);
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  word-break: keep-all;
}

.choice-btn:hover {
  background: rgba(var(--color-primary-rgb), 0.08);
  border-color: rgba(var(--color-primary-rgb), 0.5);
  transform: translateX(6px);
  box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.15);
}

.choice-btn:active {
  transform: translateX(2px);
}

.choice-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: all 0.3s ease;
}

.choice-btn:hover .choice-marker {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #000;
  box-shadow: 0 0 10px var(--color-primary);
}

.choice-content {
  flex-grow: 1;
  font-weight: 400;
}

/* ==========================================================================
   3. Ending Screen
   ========================================================================== */
.ending-card {
  max-width: 600px;
  margin: 0 auto;
  padding: 36px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ending-badge {
  display: inline-block;
  padding: 6px 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  border-radius: 50px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.ending-card-bad .ending-badge {
  background: rgba(var(--color-danger-rgb), 0.12);
  border: 1px solid rgba(var(--color-danger-rgb), 0.3);
  color: var(--color-danger);
  text-shadow: 0 0 10px rgba(var(--color-danger-rgb), 0.3);
}

.ending-card-good .ending-badge {
  background: rgba(var(--color-success-rgb), 0.12);
  border: 1px solid rgba(var(--color-success-rgb), 0.3);
  color: var(--color-success);
  text-shadow: 0 0 10px rgba(var(--color-success-rgb), 0.3);
}

.ending-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.ending-card-bad .ending-title {
  color: var(--color-danger);
}

.ending-card-good .ending-title {
  color: var(--color-success);
  background: linear-gradient(135deg, var(--color-success) 0%, #00b0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ending-story {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 28px;
  text-align: left;
  word-break: keep-all;
}

/* Ecological Fact Box */
.eco-fact-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 16px 20px;
  text-align: left;
  margin-bottom: 32px;
}

.ending-card-bad .eco-fact-card {
  border-left: 4px solid var(--color-danger);
}

.ending-card-good .eco-fact-card {
  border-left: 4px solid var(--color-success);
}

.fact-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.fact-icon {
  font-size: 1rem;
}

.fact-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.fact-content {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  word-break: keep-all;
}

.ending-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ==========================================================================
   4. Ending Collection Modal
   ========================================================================== */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(1, 6, 13, 0.8);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  width: 100%;
  max-width: 780px;
  max-height: 90%;
  display: flex;
  flex-direction: column;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}

.close-modal-btn {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: 2rem;
  cursor: pointer;
  transition: color 0.3s ease;
  line-height: 1;
}

.close-modal-btn:hover {
  color: var(--color-text-light);
}

/* Modal Stats Panel */
.collection-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  padding: 12px 20px;
  border-radius: 12px;
  margin-bottom: 20px;
}

.stats-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

.stats-progress-wrapper {
  flex-grow: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  margin: 0 20px;
  overflow: hidden;
}

.stats-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  border-radius: 10px;
  transition: width 0.5s ease;
}

.stats-counter {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* Modal Achievement Grid */
.endings-grid {
  flex-grow: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  padding-right: 6px;
  margin-bottom: 20px;
}

/* Custom Scrollbar for Grid */
.endings-grid::-webkit-scrollbar {
  width: 6px;
}
.endings-grid::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
}
.endings-grid::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
}
.endings-grid::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Grid Item (Ending Box) */
.ending-grid-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Grid Item Locked State */
.ending-grid-item.locked {
  cursor: not-allowed;
  opacity: 0.5;
}

.ending-grid-item:not(.locked):hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(var(--color-primary-rgb), 0.3);
  border-style: solid;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.grid-item-badge {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.ending-grid-item.unlocked-bad .grid-item-badge {
  color: var(--color-danger);
}

.ending-grid-item.unlocked-good .grid-item-badge {
  color: var(--color-success);
}

.grid-item-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-muted);
}

.ending-grid-item:not(.locked) .grid-item-title {
  color: var(--color-text-light);
}

.grid-item-clue {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--color-text-muted);
  word-break: keep-all;
}

.modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}

/* ==========================================================================
   Fish Aquarium & Swimming Fish Overlays
   ========================================================================== */
.fish-aquarium {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.swimming-fish-wrapper {
  position: absolute;
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.5s ease;
}

.swimming-fish .tail {
  transform-origin: 20px 20px;
  animation: wagTail 0.3s ease-in-out infinite alternate;
}

@keyframes wagTail {
  0% {
    transform: rotate(-12deg);
  }
  100% {
    transform: rotate(12deg);
  }
}

@keyframes swimLeftToRight {
  0% {
    left: -120px;
    opacity: 0;
    transform: scale(var(--fish-scale)) translateY(0);
  }
  8% {
    opacity: var(--fish-opacity);
  }
  92% {
    opacity: var(--fish-opacity);
  }
  100% {
    left: 105%;
    opacity: 0;
    transform: scale(var(--fish-scale)) translateY(var(--fish-drift));
  }
}

@keyframes swimRightToLeft {
  0% {
    left: 105%;
    opacity: 0;
    transform: scaleX(-1) scale(var(--fish-scale)) translateY(0);
  }
  8% {
    opacity: var(--fish-opacity);
  }
  92% {
    opacity: var(--fish-opacity);
  }
  100% {
    left: -120px;
    opacity: 0;
    transform: scaleX(-1) scale(var(--fish-scale)) translateY(var(--fish-drift));
  }
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 768px) {
  .game-container {
    height: 100%;
    max-height: 100vh;
    padding: 10px;
  }
  
  .intro-content {
    padding: 24px;
  }
  
  .game-title {
    font-size: 2.4rem;
  }
  
  .intro-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .game-header {
    padding: 10px 16px;
    margin-bottom: 12px;
  }
  
  .progress-container {
    width: 60%;
  }
  
  .ending-card {
    padding: 24px;
  }
  
  .ending-title {
    font-size: 1.7rem;
  }
  
  .ending-actions {
    flex-direction: column;
    gap: 10px;
  }
  
  .modal-container {
    padding: 20px;
  }
  
  .collection-stats {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
  
  .stats-progress-wrapper {
    margin: 0;
    width: 100%;
  }
  
  .stats-counter {
    align-self: flex-end;
  }
}

@media (max-height: 600px) {
  .first-person-viewport {
    min-height: 150px;
  }
  .intro-content {
    padding: 16px;
  }
  .game-title {
    font-size: 2rem;
  }
}