/* 顽皮小恶魔主题共享样式表 */

:root {
  --color-purple: #6A0DAD;       /* 恶魔紫 */
  --color-red: #FF3E6C;          /* 血浆果冻红 */
  --color-cream: #FFF4E0;        /* 白骨奶霜 */
  --color-gold: #FFC107;         /* 诅咒金币 */
  --color-dark: #1E122B;         /* 深邃暗紫 */
  --color-light-purple: #8B22E2; /* 亮恶魔紫 */
  --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

body {
  font-family: var(--font-stack);
  background-color: var(--color-dark);
  background-image: radial-gradient(circle at center, var(--color-purple) 0%, var(--color-dark) 100%);
  color: var(--color-cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

/* 顶部导航返回链接 */
.nav-header {
  width: 100%;
  max-width: 1000px;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

.back-home {
  color: var(--color-gold);
  text-decoration: none;
  font-size: 1rem;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  background: rgba(106, 13, 173, 0.4);
  border: 2px solid var(--color-gold);
  border-radius: 20px;
  transition: all 0.2s ease;
}

.back-home:hover {
  transform: scale(1.05) rotate(-2deg);
  background: var(--color-gold);
  color: var(--color-dark);
  box-shadow: 0 0 10px var(--color-gold);
}

/* 顽皮小恶魔卡片 - 羊皮纸/烧灼边缘发光质感 */
.devil-card {
  background: rgba(30, 18, 43, 0.85);
  border: 3px solid var(--color-purple);
  border-radius: 24px;
  padding: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 15px rgba(106, 13, 173, 0.4);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}

.devil-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-red), var(--color-gold), var(--color-red));
}

.devil-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(255, 62, 108, 0.4);
}

/* 糖果形按钮 - hover时果冻般弹跳 */
.devil-btn {
  background: var(--color-red);
  color: var(--color-cream);
  border: none;
  border-radius: 50px;
  padding: 14px 28px;
  font-size: 1.1rem;
  font-weight: 900;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 0 #B31D42, 0 8px 20px rgba(255, 62, 108, 0.3);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}

.devil-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 0 #B31D42, 0 12px 25px rgba(255, 62, 108, 0.5);
  animation: jelly 0.5s ease-in-out;
}

.devil-btn:active {
  transform: translateY(4px) scale(0.98);
  box-shadow: 0 2px 0 #B31D42, 0 4px 10px rgba(255, 62, 108, 0.5);
}

/* 辅助金色按钮 */
.devil-btn.gold {
  background: var(--color-gold);
  color: var(--color-dark);
  box-shadow: 0 6px 0 #C49000, 0 8px 20px rgba(255, 193, 7, 0.3);
}

.devil-btn.gold:hover {
  box-shadow: 0 8px 0 #C49000, 0 12px 25px rgba(255, 193, 7, 0.5);
}

.devil-btn.gold:active {
  box-shadow: 0 2px 0 #C49000, 0 4px 10px rgba(255, 193, 7, 0.5);
}

/* 渐变标题 */
.gradient-title {
  font-size: 3rem;
  font-weight: 900;
  text-align: center;
  background: linear-gradient(135deg, var(--color-cream) 30%, var(--color-gold) 60%, var(--color-red) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 10px rgba(0,0,0,0.5);
  margin-bottom: 10px;
  letter-spacing: 2px;
  transform: rotate(-1deg);
}

/* 果冻动画 */
@keyframes jelly {
  0% { transform: scale(1, 1) translateY(-2px); }
  30% { transform: scale(1.15, 0.8) translateY(-2px); }
  40% { transform: scale(0.85, 1.1) translateY(-2px); }
  50% { transform: scale(1.05, 0.95) translateY(-2px); }
  65% { transform: scale(0.98, 1.01) translateY(-2px); }
  100% { transform: scale(1, 1) translateY(-2px); }
}

/* 飘浮小火星背景 */
.fireflies {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.firefly {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  filter: blur(1px);
  opacity: 0.6;
  animation: float-up 8s infinite linear;
}

@keyframes float-up {
  0% {
    transform: translateY(105vh) translateX(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.8;
  }
  100% {
    transform: translateY(-5vh) translateX(50px) scale(0.5);
    opacity: 0;
  }
}

/* 弹窗/模态层 */
.devil-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 8, 22, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.devil-modal-content {
  max-width: 500px;
  width: 90%;
  text-align: center;
  transform: scale(0.8);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.devil-modal.active .devil-modal-content {
  transform: scale(1);
}