@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700;900&display=swap');
@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  :root {
    --radius: 0.5rem;
    --sidebar-background: 0 0% 98%;
    --sidebar-foreground: 240 5.3% 26.1%;
    --sidebar-primary: 240 5.9% 10%;
    --sidebar-primary-foreground: 0 0% 98%;
    --sidebar-accent: 240 4.8% 95.9%;
    --sidebar-accent-foreground: 240 5.9% 10%;
    --sidebar-border: 220 13% 91%;
    --sidebar-ring: 217.2 91.2% 59.8%;
    /* 传统中式颜色 */
    --chinese-red: #dc2626;
    --chinese-gold: #facc15;
    --chinese-dark-red: #991b1b;
    --chinese-deep-gold: #d97706;
  }

  .dark {
    --sidebar-background: 240 5.9% 10%;
    --sidebar-foreground: 240 4.8% 95.9%;
    --sidebar-primary: 224.3 76.3% 48%;
    --sidebar-primary-foreground: 0 0% 100%;
    --sidebar-accent: 240 3.7% 15.9%;
    --sidebar-accent-foreground: 240 4.8% 95.9%;
    --sidebar-border: 240 3.7% 15.9%;
    --sidebar-ring: 217.2 91.2% 59.8%
  }
  
  body {
    font-family: 'Noto Serif SC', serif;
    background: linear-gradient(135deg, #fef7cd 0%, #fed7aa 25%, #fecaca 50%, #fed7aa 75%, #fef7cd 100%);
    background-attachment: fixed;
    position: relative;
  }
  
  body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/chinese_golden_red_auspicious_cloud_pattern_background.jpg');
    background-size: 400px 400px;
    background-repeat: repeat;
    opacity: 0.08;
    z-index: -2;
    pointer-events: none;
  }
  
  body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 20%, rgba(220, 38, 38, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(250, 204, 21, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(220, 38, 38, 0.05) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
  }
}

/* 传统中式装饰类 */
.chinese-traditional-bg {
  background: linear-gradient(135deg, #dc2626 0%, #991b1b 50%, #dc2626 100%);
  position: relative;
}

.chinese-traditional-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/red_gold_chinese_auspicious_cloud_pattern_background.jpg');
  background-size: 300px 300px;
  background-repeat: repeat;
  opacity: 0.3;
  z-index: 0;
}

.chinese-traditional-bg > * {
  position: relative;
  z-index: 1;
}

.chinese-golden-frame {
  position: relative;
  border: 3px solid transparent;
  background: linear-gradient(#fef7cd, #fef7cd) padding-box,
              linear-gradient(45deg, #facc15, #d97706, #facc15) border-box;
  border-radius: 12px;
}

.chinese-golden-frame::before {
  content: '';
  position: absolute;
  top: -8px;
  left: -8px;
  right: -8px;
  bottom: -8px;
  background: linear-gradient(45deg, #facc15, #d97706, #facc15);
  border-radius: 16px;
  z-index: -1;
  opacity: 0.8;
}

.chinese-card-decoration {
  position: relative;
  background: rgba(254, 247, 205, 0.95);
  border: 2px solid #facc15;
  box-shadow: 0 8px 32px rgba(220, 38, 38, 0.15), 
              inset 0 1px 0 rgba(250, 204, 21, 0.3);
}

.chinese-card-decoration::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 1px solid rgba(250, 204, 21, 0.3);
  border-radius: 6px;
  pointer-events: none;
}

.chinese-text-shadow {
  text-shadow: 2px 2px 4px rgba(220, 38, 38, 0.3),
               0 0 8px rgba(250, 204, 21, 0.4);
}

.chinese-golden-glow {
  background: linear-gradient(135deg, #facc15 0%, #d97706 50%, #facc15 100%);
  box-shadow: 0 4px 20px rgba(250, 204, 21, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.chinese-red-glow {
  background: linear-gradient(135deg, #dc2626 0%, #991b1b 50%, #dc2626 100%);
  box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.traditional-border {
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              linear-gradient(45deg, #facc15, #dc2626, #facc15, #dc2626) border-box;
}

.dragon-corner {
  position: relative;
}

.dragon-corner::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  width: 40px;
  height: 40px;
  background-image: url('/traditional_chinese_gold_red_dragon_symbol.jpg');
  background-size: cover;
  background-position: center;
  border-radius: 50%;
  opacity: 0.7;
  z-index: 1;
}

.dragon-corner::after {
  content: '';
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 40px;
  height: 40px;
  background-image: url('/traditional_chinese_gold_red_dragon_symbol.jpg');
  background-size: cover;
  background-position: center;
  border-radius: 50%;
  opacity: 0.7;
  z-index: 1;
  transform: rotate(180deg);
}

.mystical-gradient {
  background: linear-gradient(135deg, 
    rgba(220, 38, 38, 0.1) 0%, 
    rgba(250, 204, 21, 0.1) 25%, 
    rgba(220, 38, 38, 0.1) 50%, 
    rgba(250, 204, 21, 0.1) 75%, 
    rgba(220, 38, 38, 0.1) 100%);
}

img {
  object-position: top;
}

.fixed {
  position: fixed;
}