/* ========================================
   慢世界 - Slow World
   Warm, hand-drawn aesthetic
   适老化 (elder-friendly) design
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;700&family=ZCOOL+KuaiLe&display=swap');

:root {
  --warm-bg: #fdf6ec;
  --warm-dark: #5c4033;
  --warm-accent: #e8a87c;
  --warm-accent-dark: #d4845a;
  --warm-highlight: #f8e1c8;
  --warm-red: #e07a5f;
  --warm-green: #81b29a;
  --warm-gold: #f2cc8f;
  --text-main: #3d2b1f;
  --text-light: #f5f0eb;
  --dialogue-bg: rgba(45, 30, 20, 0.88);
  --shadow-warm: 0 4px 20px rgba(92, 64, 51, 0.25);
  --font-body: 'Noto Serif SC', 'PingFang SC', 'Hiragino Sans GB', serif;
  --font-display: 'ZCOOL KuaiLe', 'Noto Serif SC', cursive;
  --radius: 16px;
  --radius-sm: 10px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #1a110a;
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ---- Game Container ---- */
#game-container {
  position: relative;
  width: 100%;
  height: 100%;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0 auto;
  overflow: hidden;
  background: #1a110a;
  display: flex;
  align-items: center;
  justify-content: center;
}

#game-canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  image-rendering: auto;
}

.overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 10;
}

.hidden {
  display: none !important;
}

/* ---- Hotspot Layer ---- */
#hotspot-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 15;
  pointer-events: none;
}

.hotspot {
  position: absolute;
  pointer-events: auto;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.hotspot::after {
  content: '';
  position: absolute;
  top: -4px; left: -4px;
  right: -4px; bottom: -4px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--warm-accent);
  opacity: 0;
  animation: hotspot-pulse 2s ease-in-out infinite;
  pointer-events: none;
}

.hotspot:hover::after,
.hotspot.highlight::after {
  opacity: 1;
}

.hotspot:hover {
  background: rgba(232, 168, 124, 0.15);
  box-shadow: 0 0 20px rgba(232, 168, 124, 0.3);
}

@keyframes hotspot-pulse {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.03); }
}

.hotspot-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--dialogue-bg);
  color: var(--text-light);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.hotspot:hover .hotspot-tooltip {
  opacity: 1;
}

/* ---- Dialogue Box ---- */
#dialogue-box {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  z-index: 50;
  background: var(--dialogue-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 24px 32px 28px;
  min-height: 160px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  border-top: 3px solid var(--warm-accent);
  border-radius: var(--radius) var(--radius) 0 0;
  cursor: pointer;
  animation: dialogue-slide-up 0.35s ease-out;
}

@keyframes dialogue-slide-up {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

#dialogue-portrait {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--warm-accent);
  background: var(--warm-highlight);
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
}

#dialogue-content {
  flex: 1;
  min-width: 0;
}

#dialogue-name {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--warm-accent);
  margin-bottom: 8px;
  font-weight: 700;
}

#dialogue-text {
  font-size: 22px;
  line-height: 1.7;
  color: var(--text-light);
  letter-spacing: 0.5px;
}

#dialogue-text.narration {
  font-style: italic;
  color: var(--warm-gold);
}

#dialogue-advance-hint {
  position: absolute;
  bottom: 12px;
  right: 24px;
  color: var(--warm-accent);
  font-size: 16px;
  animation: hint-bounce 1s ease-in-out infinite;
}

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

/* ---- Choice Buttons ---- */
#choice-container {
  position: absolute;
  bottom: 180px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 55;
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 80%;
  max-width: 500px;
  animation: choices-fade-in 0.4s ease-out;
}

@keyframes choices-fade-in {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.choice-btn {
  display: block;
  width: 100%;
  padding: 16px 24px;
  font-family: var(--font-body);
  font-size: 20px;
  color: var(--text-main);
  background: linear-gradient(135deg, var(--warm-highlight), var(--warm-gold));
  border: 2px solid var(--warm-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-warm);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  letter-spacing: 0.5px;
}

.choice-btn:hover {
  background: linear-gradient(135deg, var(--warm-accent), var(--warm-accent-dark));
  color: var(--text-light);
  transform: scale(1.03);
  box-shadow: 0 6px 28px rgba(232, 168, 124, 0.4);
}

.choice-btn:active {
  transform: scale(0.98);
}

/* ---- Patience / Heart Indicator ---- */
#patience-indicator {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--dialogue-bg);
  padding: 8px 16px;
  border-radius: 30px;
  backdrop-filter: blur(6px);
}

.patience-icon {
  font-size: 22px;
  color: var(--warm-red);
}

.patience-bar-bg {
  width: 80px;
  height: 10px;
  background: rgba(255,255,255,0.15);
  border-radius: 5px;
  overflow: hidden;
}

.patience-bar-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--warm-red), var(--warm-gold));
  border-radius: 5px;
  transition: width 0.5s ease;
}

.patience-value {
  color: var(--text-light);
  font-size: 16px;
  min-width: 28px;
  text-align: right;
}

/* ---- Inventory ---- */
#inventory-toggle {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 60;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  background: var(--dialogue-bg);
  border-radius: 50%;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: transform 0.2s ease;
  user-select: none;
}

#inventory-toggle:hover {
  transform: scale(1.1);
}

#inventory-panel {
  position: absolute;
  top: 0; left: 0;
  width: 320px;
  max-width: 85vw;
  height: 100%;
  z-index: 70;
  background: rgba(45, 30, 20, 0.95);
  backdrop-filter: blur(12px);
  padding: 20px;
  overflow-y: auto;
  animation: inv-slide-in 0.3s ease-out;
  border-right: 3px solid var(--warm-accent);
}

@keyframes inv-slide-in {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

.inventory-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--warm-accent);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(232, 168, 124, 0.3);
}

.inventory-header button {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 28px;
  cursor: pointer;
}

#inventory-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.inventory-item {
  background: rgba(255, 255, 255, 0.06);
  border: 2px solid rgba(232, 168, 124, 0.2);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  transition: all 0.2s ease;
  cursor: default;
}

.inventory-item:hover {
  border-color: var(--warm-accent);
  background: rgba(232, 168, 124, 0.1);
}

.inventory-item .item-icon {
  font-size: 36px;
  margin-bottom: 8px;
}

.inventory-item .item-name {
  font-size: 15px;
  color: var(--warm-gold);
  font-weight: 700;
}

.inventory-item .item-desc {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
  opacity: 0.75;
}

/* ---- Item Notification ---- */
#item-notification {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 80;
  background: linear-gradient(135deg, var(--warm-accent-dark), var(--warm-accent));
  color: var(--text-light);
  padding: 14px 28px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-warm);
  animation: notif-pop 0.4s ease-out;
  font-size: 18px;
}

@keyframes notif-pop {
  0% { opacity: 0; transform: translateX(-50%) translateY(-20px) scale(0.9); }
  100% { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}

.notif-icon {
  font-size: 28px;
}

/* ---- Chapter Title Overlay ---- */
#chapter-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(26, 17, 10, 0.92);
  z-index: 90;
  pointer-events: auto;
}

#chapter-overlay .chapter-number {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--warm-accent);
  margin-bottom: 12px;
  letter-spacing: 4px;
}

#chapter-overlay .chapter-title {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--text-light);
  margin-bottom: 16px;
  text-shadow: 0 2px 12px rgba(232, 168, 124, 0.4);
}

#chapter-overlay .chapter-subtitle {
  font-size: 20px;
  color: var(--warm-gold);
  opacity: 0.8;
}

#chapter-overlay.fade-in {
  animation: overlay-fade-in 1s ease-out forwards;
}

#chapter-overlay.fade-out {
  animation: overlay-fade-out 1s ease-in forwards;
}

@keyframes overlay-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes overlay-fade-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ---- Elder Perspective Overlay ---- */
#elder-overlay {
  z-index: 5;
  pointer-events: none;
  transition: all 0.8s ease;
}

#elder-overlay.active {
  display: block !important;
  backdrop-filter: blur(2px) saturate(0.4);
  -webkit-backdrop-filter: blur(2px) saturate(0.4);
  background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.4) 100%);
}

/* When elder view is on, add slight shake to canvas */
#game-container.elder-view #game-canvas {
  animation: elder-shake 4s ease-in-out infinite;
  filter: blur(1px) saturate(0.5);
}

@keyframes elder-shake {
  0%, 100% { transform: translate(-50%, -50%); }
  25% { transform: translate(calc(-50% + 1px), calc(-50% - 1px)); }
  50% { transform: translate(calc(-50% - 1px), calc(-50% + 1px)); }
  75% { transform: translate(calc(-50% + 1px), calc(-50% + 1px)); }
}

/* ---- Flashback Overlay ---- */
#flashback-overlay {
  z-index: 85;
  pointer-events: auto;
  background: rgba(45, 30, 10, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
}

#flashback-overlay .flashback-content {
  max-width: 600px;
  padding: 40px;
  text-align: center;
  color: var(--warm-highlight);
  font-size: 22px;
  line-height: 1.8;
  filter: sepia(0.6) saturate(1.3);
}

#flashback-overlay.fade-in {
  animation: overlay-fade-in 0.8s ease-out forwards;
}

#flashback-overlay.fade-out {
  animation: overlay-fade-out 0.8s ease-in forwards;
}

/* ---- Title Screen ---- */
#title-screen {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 100;
  background: linear-gradient(160deg, #2d1e14, #4a3228, #5c4033);
  display: flex;
  align-items: center;
  justify-content: center;
}

.title-content {
  text-align: center;
  animation: title-appear 1.2s ease-out;
}

@keyframes title-appear {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.game-title {
  font-family: var(--font-display);
  font-size: 64px;
  color: var(--warm-highlight);
  text-shadow: 0 4px 24px rgba(232, 168, 124, 0.5);
  margin-bottom: 16px;
  letter-spacing: 6px;
}

.game-subtitle {
  font-size: 22px;
  color: var(--warm-gold);
  margin-bottom: 48px;
  opacity: 0.85;
  letter-spacing: 2px;
}

.title-btn {
  display: block;
  margin: 14px auto;
  padding: 16px 52px;
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--text-main);
  background: linear-gradient(135deg, var(--warm-gold), var(--warm-accent));
  border: none;
  border-radius: 40px;
  box-shadow: var(--shadow-warm);
  cursor: pointer;
  transition: all 0.25s ease;
  letter-spacing: 2px;
}

.title-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 6px 30px rgba(232, 168, 124, 0.5);
}

.title-btn:active {
  transform: scale(0.97);
}

.title-btn.secondary {
  background: transparent;
  border: 2px solid var(--warm-accent);
  color: var(--warm-accent);
  font-size: 18px;
  padding: 12px 40px;
}

.title-btn.secondary:hover {
  background: rgba(232, 168, 124, 0.15);
}

/* ---- Gallery View ---- */
#gallery-view {
  z-index: 95;
  pointer-events: auto;
  background: rgba(26, 17, 10, 0.96);
  padding: 30px;
  overflow-y: auto;
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.gallery-header h2 {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--warm-accent);
}

.gallery-header button {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 32px;
  cursor: pointer;
}

#gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px;
}

.gallery-item {
  background: rgba(255,255,255,0.05);
  border: 2px solid rgba(232, 168, 124, 0.2);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: all 0.2s ease;
}

.gallery-item:hover {
  border-color: var(--warm-accent);
  transform: translateY(-4px);
}

.gallery-item .g-icon {
  font-size: 48px;
  margin-bottom: 10px;
}

.gallery-item .g-name {
  font-size: 16px;
  color: var(--warm-gold);
  font-weight: 700;
  margin-bottom: 6px;
}

.gallery-item .g-desc {
  font-size: 13px;
  color: var(--text-light);
  opacity: 0.7;
  line-height: 1.5;
}

.gallery-item .g-chapter {
  font-size: 12px;
  color: var(--warm-accent);
  margin-top: 8px;
  opacity: 0.6;
}

/* ---- Audio Toggle ---- */
#audio-toggle {
  position: absolute;
  bottom: 16px;
  right: 16px;
  z-index: 60;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: var(--dialogue-bg);
  border-radius: 50%;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: transform 0.2s ease;
  user-select: none;
}

#audio-toggle:hover {
  transform: scale(1.1);
}

#audio-toggle.muted {
  opacity: 0.5;
}

/* ---- Particles Layer ---- */
#particles-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 8;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.particle-warm {
  background: radial-gradient(circle, rgba(242, 204, 143, 0.6), transparent);
}

.particle-rain {
  background: rgba(150, 180, 210, 0.4);
  border-radius: 0;
  width: 2px !important;
}

/* ---- Screen fade ---- */
.screen-fade {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 88;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .game-title {
    font-size: 42px;
    letter-spacing: 3px;
  }

  .game-subtitle {
    font-size: 17px;
    margin-bottom: 36px;
  }

  .title-btn {
    font-size: 20px;
    padding: 14px 40px;
  }

  #dialogue-box {
    padding: 18px 20px 22px;
    min-height: 130px;
  }

  #dialogue-portrait {
    width: 56px;
    height: 56px;
  }

  #dialogue-text {
    font-size: 18px;
  }

  #dialogue-name {
    font-size: 17px;
  }

  .choice-btn {
    font-size: 17px;
    padding: 13px 20px;
  }

  #chapter-overlay .chapter-title {
    font-size: 36px;
  }

  #chapter-overlay .chapter-number {
    font-size: 18px;
  }

  #inventory-panel {
    width: 280px;
  }

  #patience-indicator {
    top: 10px;
    right: 10px;
    padding: 6px 12px;
  }

  .patience-bar-bg {
    width: 60px;
  }
}

@media (max-width: 400px) {
  .game-title {
    font-size: 34px;
  }

  #dialogue-text {
    font-size: 16px;
  }

  .choice-btn {
    font-size: 16px;
  }
}