/* --- CORE DESIGN SYSTEM --- */
:root {
  /* Colors */
  --bg-darkest: #090c0f;
  --bg-darker: #12161b;
  --bg-card: rgba(22, 27, 34, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  
  --text-main: #e6edf3;
  --text-muted: #8b949e;
  --text-dark: #484f58;
  
  --color-green: #39e75f;
  --color-green-glow: rgba(57, 231, 95, 0.25);
  
  --color-red: #ff4a47;
  --color-red-glow: rgba(255, 74, 71, 0.3);
  
  --color-amber: #ffc53d;
  --color-amber-glow: rgba(255, 197, 61, 0.25);
  
  --color-blue: #58a6ff;
  --color-blue-glow: rgba(88, 166, 255, 0.25);
  
  /* Fonts */
  --font-display: 'Orbitron', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --font-horror: 'Creepster', cursive;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
}

/* --- RESET & GLOBAL STYLES --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
  background: var(--text-dark);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- MAIN CONTAINER --- */
#app-container {
  display: flex;
  flex-direction: column;
  width: 98vw;
  height: 96vh;
  max-width: 1728px;
  max-height: 1080px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-darker);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
  border-radius: 12px;
  overflow: hidden;
}

/* --- HEADER PANEL --- */
#game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 25px;
  background-color: rgba(9, 12, 15, 0.9);
  border-bottom: 1px solid var(--border-color);
}

#main-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 3px;
  color: var(--color-red);
  text-shadow: 0 0 10px var(--color-red-glow);
  font-weight: 900;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.btn-audio-control {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 1px;
}

.btn-audio-control:hover {
  background-color: var(--color-amber);
  color: var(--bg-darkest);
  border-color: var(--color-amber);
  box-shadow: 0 0 8px var(--color-amber-glow);
}

.player-vitality {
  display: flex;
  gap: 30px;
}

.vital-bar-container {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 220px;
}

.vital-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.vital-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: right;
  color: var(--text-muted);
}

/* Progress Bars */
.bar-outer {
  height: 8px;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.bar-inner {
  height: 100%;
  border-radius: 3px;
  transition: width var(--transition-normal);
}

.hp-fill {
  background-color: var(--color-red);
  box-shadow: 0 0 8px var(--color-red-glow);
}

.xp-fill {
  background-color: var(--color-amber);
  box-shadow: 0 0 8px var(--color-amber-glow);
}

#player-level-badge {
  color: var(--color-amber);
  font-weight: bold;
}

/* --- GAME BODY LAYOUT --- */
#game-body {
  display: grid;
  grid-template-columns: 336px 1fr 336px;
  flex: 1;
  overflow: hidden;
  background-image: radial-gradient(circle at center, rgba(18, 22, 27, 0.6) 0%, var(--bg-darkest) 100%);
}

/* Sidebars and Cards */
.sidebar-banner {
  width: 100%;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  margin-bottom: 5px;
}

#banner-img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(20%) contrast(110%);
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding: 20px;
  overflow-y: auto;
  border-right: 1px solid var(--border-color);
}

#right-sidebar {
  border-right: none;
  border-left: 1px solid var(--border-color);
}

.panel-card {
  background-color: var(--bg-card);
  backdrop-filter: blur(8px);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.panel-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 2px;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
  text-transform: uppercase;
}

.status-summary {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.status-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.highlight-text {
  color: var(--color-amber);
  font-weight: bold;
  text-shadow: 0 0 4px rgba(255, 197, 61, 0.15);
}

/* --- SKILLS SYSTEM --- */
#skills-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

#skills-section h3 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.skill-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.skill-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skill-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.skill-level {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-green);
}

.skill-progress-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-bar {
  flex: 1;
  height: 6px;
}

.skill-fill {
  background-color: var(--color-green);
  box-shadow: 0 0 5px var(--color-green-glow);
}

/* Upgrade skill button */
.btn-upgrade-skill {
  background-color: var(--color-amber);
  color: var(--bg-darkest);
  border: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  cursor: pointer;
  font-weight: bold;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 0 5px var(--color-amber-glow);
}

.btn-upgrade-skill:hover {
  transform: scale(1.15);
  box-shadow: 0 0 8px var(--color-amber);
}

.hidden {
  display: none !important;
}

/* --- CENTER PANEL (GAME NARRATIVE & OPTIONS) --- */
#center-panel {
  display: flex;
  flex-direction: column;
  padding: 20px;
  overflow: hidden;
  gap: 20px;
}

#scene-viewport {
  width: 100%;
  max-width: 640px;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  background-color: var(--bg-darkest);
  display: flex;
  justify-content: center;
  align-items: center;
}

#scene-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: opacity 0.5s ease;
  filter: contrast(105%) brightness(90%) saturate(80%);
}

#story-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background-color: rgba(9, 12, 15, 0.7);
  display: flex;
  flex-direction: column; /* Standard scrolling layout */
}

#story-log {
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: flex-end;
}

/* Text Story Animations & Styles */
.story-block {
  animation: slideUp 0.4s ease-out forwards;
  opacity: 0;
  line-height: 1.6;
}

.story-text {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 8px;
  white-space: pre-line;
}

.story-outcome {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding-left: 10px;
  border-left: 2px solid var(--text-dark);
  color: var(--text-muted);
}

.outcome-gain {
  color: var(--color-green);
}

.outcome-loss {
  color: var(--color-red);
}

.story-choice-history {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.story-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 15px 0;
}

/* --- CHOICE BOX --- */
#choices-container {
  padding: 20px;
  background-color: rgba(22, 27, 34, 0.95);
  border: 1px solid var(--border-color);
}

.choices-title {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

#choices-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Choice Buttons */
.choice-button {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 18px;
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.choice-button:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--color-blue);
  transform: translateX(4px);
  box-shadow: 0 0 10px var(--color-blue-glow);
}

.choice-req-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  background-color: rgba(0, 0, 0, 0.3);
}

/* Choice requirement colors */
.choice-req-badge.skill-check {
  color: var(--color-green);
  border: 1px solid rgba(57, 231, 95, 0.3);
}

.choice-req-badge.item-check {
  color: var(--color-amber);
  border: 1px solid rgba(255, 197, 61, 0.3);
}

/* Locked choices */
.choice-button.locked {
  opacity: 0.4;
  cursor: not-allowed;
  background-color: rgba(0, 0, 0, 0.2);
}

.choice-button.locked:hover {
  border-color: var(--border-color);
  transform: none;
  box-shadow: none;
}

.choice-button.locked .choice-req-badge {
  color: var(--color-red);
  border: 1px solid rgba(255, 74, 71, 0.3);
}

/* Danger Choice Variant */
.choice-button.danger-choice:hover:not(.locked) {
  border-color: var(--color-red);
  box-shadow: 0 0 10px var(--color-red-glow);
}

/* --- INVENTORY SYSTEM --- */
#right-sidebar {
  display: flex;
  flex-direction: column;
}

#inventory-list-container {
  flex: 1;
  overflow-y: auto;
  margin-top: 10px;
}

#inventory-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.inventory-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.inventory-item:hover {
  border-color: rgba(255, 255, 255, 0.12);
  background-color: rgba(255, 255, 255, 0.03);
}

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

.item-name {
  font-size: 0.85rem;
  font-weight: bold;
}

.item-qty {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.item-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.item-actions {
  display: flex;
  gap: 8px;
}

.btn-item {
  flex: 1;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-item:hover {
  background-color: var(--text-dark);
  border-color: var(--text-muted);
}

.btn-item-use {
  color: var(--color-green);
  border-color: rgba(57, 231, 95, 0.2);
}

.btn-item-use:hover {
  background-color: rgba(57, 231, 95, 0.1);
  border-color: var(--color-green);
}

.subtle-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 20px;
}

/* --- MODAL SYSTEM --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  animation: fadeIn 0.3s ease-out forwards;
}

.modal-content {
  background-color: var(--bg-darker);
  border: 2px solid var(--border-color);
  padding: 40px;
  border-radius: 12px;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.text-center {
  text-align: center;
}

.creepster-text {
  font-family: var(--font-horror);
  letter-spacing: 2px;
}

.font-large {
  font-size: 3.5rem;
}

.glow-red {
  color: var(--color-red);
  text-shadow: 0 0 15px var(--color-red-glow);
}

.game-over-quote {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.game-over-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(0, 0, 0, 0.3);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
}

.btn-primary {
  padding: 12px 24px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 1px;
  border-radius: 6px;
  border: 1px solid var(--color-amber);
  background-color: rgba(255, 197, 61, 0.1);
  color: var(--color-amber);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: bold;
}

.btn-primary:hover {
  background-color: var(--color-amber);
  color: var(--bg-darkest);
  box-shadow: 0 0 15px var(--color-amber-glow);
}

.btn-danger {
  border-color: var(--color-red);
  background-color: rgba(255, 74, 71, 0.1);
  color: var(--color-red);
}

.btn-danger:hover {
  background-color: var(--color-red);
  color: var(--text-main);
  box-shadow: 0 0 15px var(--color-red-glow);
}

/* --- KEYFRAMES --- */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.shake-anim {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

/* Screen Flash Overlays */
.flash-overlay-dmg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 74, 71, 0.35);
  pointer-events: none;
  z-index: 999;
  animation: flashEffect 0.4s ease-out forwards;
}

.flash-overlay-heal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(57, 231, 95, 0.25);
  pointer-events: none;
  z-index: 999;
  animation: flashEffect 0.4s ease-out forwards;
}

@keyframes flashEffect {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

/* Screen Size Adaptations (Responsive) */
@media (max-width: 900px) {
  #game-body {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    overflow-y: auto;
  }
  
  body {
    overflow-y: auto;
  }
  
  #app-container {
    height: auto;
    max-height: none;
  }
  
  #left-sidebar, #right-sidebar {
    border: none;
    border-top: 1px solid var(--border-color);
    max-height: 350px;
  }
  
  #center-panel {
    height: 500px;
  }
}

/* --- START SCREEN OVERLAY --- */
.overlay-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(6, 8, 10, 0.96);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.overlay-container.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.start-card {
  text-align: center;
  padding: 50px 40px;
  border-radius: 12px;
  background: rgba(18, 22, 27, 0.9);
  border: 1px solid var(--color-red-glow);
  box-shadow: 0 0 30px rgba(255, 74, 71, 0.15);
  backdrop-filter: blur(10px);
  max-width: 500px;
  width: 90%;
  animation: cardPulse 3s infinite ease-in-out;
}

@keyframes cardPulse {
  0%, 100% { box-shadow: 0 0 30px rgba(255, 74, 71, 0.12); }
  50% { box-shadow: 0 0 45px rgba(255, 74, 71, 0.25); }
}

.start-title {
  font-family: var(--font-horror);
  font-size: 3.8rem;
  color: var(--color-red);
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-shadow: 0 0 15px rgba(255, 74, 71, 0.5);
}

.start-subtitle {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 35px;
  letter-spacing: 1px;
}

.start-btn {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  padding: 14px 35px;
  border-radius: 4px;
  background-color: var(--color-red);
  color: var(--bg-darkest);
  border: 1px solid var(--color-red);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 0 15px rgba(255, 74, 71, 0.25);
  letter-spacing: 2px;
}

.start-btn:hover {
  background-color: transparent;
  color: var(--color-red);
  border-color: var(--color-red);
  box-shadow: 0 0 25px var(--color-red-glow);
  transform: translateY(-2px);
}