/* ========================================
   Characters Section - 原神介绍网站
   ======================================== */

.characters-section {
  position: relative;
  z-index: 1;
}

/* Filter Buttons */
.char-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.char-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.char-filter-btn svg {
  width: 16px;
  height: 16px;
}

.char-filter-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
  background: var(--color-bg-card-hover);
}

.char-filter-btn.active {
  background: rgba(230, 180, 34, 0.12);
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold);
}

/* Character Grid */
.characters-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* Character Card */
.char-card {
  position: relative;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-base);
  cursor: default;
}

.char-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--char-element-color);
  transition: height var(--transition-base);
}

.char-card:hover {
  transform: translateY(-6px);
  border-color: var(--char-element-color);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px color-mix(in srgb, var(--char-element-color) 20%, transparent);
}

.char-card:hover::before {
  height: 6px;
}

.char-card.hidden {
  display: none;
}

.char-card.fade-out {
  opacity: 0;
  transform: scale(0.9);
}

.char-card.fade-in {
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Card Content */
.char-card-content {
  padding: 24px 20px 20px;
}

.char-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}

.char-stars {
  display: flex;
  gap: 2px;
}

.char-star {
  width: 14px;
  height: 14px;
}

.char-star svg {
  width: 14px;
  height: 14px;
}

.char-star-5 svg {
  fill: var(--color-accent-gold);
}

.char-star-4 svg {
  fill: #b08fc2;
}

.char-element-badge {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--char-element-color) 12%, transparent);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.char-element-badge svg {
  width: 22px;
  height: 22px;
}

.char-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.char-title {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  font-style: italic;
}

.char-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.char-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.char-tag svg {
  width: 12px;
  height: 12px;
}

.char-tag-element {
  color: var(--char-element-color);
  border-color: color-mix(in srgb, var(--char-element-color) 20%, transparent);
  background: color-mix(in srgb, var(--char-element-color) 8%, transparent);
}

.char-tag-weapon {
  color: var(--color-text-secondary);
}

.char-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Responsive */
@media (max-width: 1200px) {
  .characters-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .characters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .characters-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .char-filters {
    gap: 6px;
  }

  .char-filter-btn {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}