/* fashion-art-gallery-050410/frontend/public/styles/series.css */

/* =========================================
   系列页面变量配置
   ========================================= */
:root {
  --series-gap: 2rem;
  --series-transition: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --overlay-bg: rgba(0, 0, 0, 0.3);
  --text-light: #ffffff;
  --card-ratio: 3/4; /* 竖向构图 */
}

/* =========================================
   页面基础容器
   ========================================= */
.series-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 6rem 2rem;
  min-height: 100vh;
}

/* 顶部标题区域 */
.series-header {
  text-align: center;
  margin-bottom: 6rem;
  opacity: 0;
  animation: fadeSlideUp 1s ease-out forwards;
}

.series-header h1 {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.series-header p {
  font-size: 1rem;
  color: #737373;
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto;
}

/* =========================================
   系列列表 (Overview Grid)
   ========================================= */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--series-gap);
  opacity: 0;
  animation: fadeIn 1.2s ease-out 0.3s forwards;
}

/* 单个系列卡片 */
.series-card {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: var(--card-ratio);
  cursor: pointer;
  text-decoration: none;
  background-color: #f5f5f5;
}

.series-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s ease, filter 0.5s ease;
  display: block;
  filter: brightness(0.95);
}

/* 遮罩层与文字 */
.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity 0.5s ease, background-color 0.5s ease;
  z-index: 10;
}

.card-title {
  color: var(--text-light);
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transform: translateY(20px);
  transition: transform 0.6s ease;
}

.card-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  margin-top: 0.5rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  transform: translateY(20px);
  transition: transform 0.6s ease 0.1s;
}

/* 悬停交互 */
.series-card:hover img {
  transform: scale(1.05);
  filter: brightness(1.05);
}

.series-card:hover .card-overlay {
  opacity: 1;
  background-color: rgba(0, 0, 0, 0.1); /* 变亮效果实际上是减少遮罩浓度或图片变亮 */
}

.series-card:hover .card-title,
.series-card:hover .card-subtitle {
  transform: translateY(0);
}

/* =========================================
   详情页瀑布流 (Detail Gallery)
   ========================================= */
/* 默认隐藏，通过JS切换显示 */
.detail-view {
  display: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.detail-view.active {
  display: block;
  opacity: 1;
}

.detail-header {
  margin-bottom: 4rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 1px solid #eee;
  padding-bottom: 2rem;
}

.detail-info h2 {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 0.5rem;
}

.detail-info p {
  color: #666;
  font-size: 0.9rem;
  max-width: 500px;
}

.back-btn {
  background: none;
  border: none;
  font-size: 0.9rem;
  color: #333;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: opacity 0.3s;
  padding: 0.5rem 1rem;
  border: 1px solid #ddd;
}

.back-btn:hover {
  opacity: 0.6;
  border-color: #999;
}

/* 瀑布流网格 */
.masonry-grid {
  column-count: 3;
  column-gap: 2rem;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 2rem;
  position: relative;
  cursor: zoom-in;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.3s ease;
}

.gallery-item:hover img {
  opacity: 0.9;
}

.item-desc {
  font-size: 0.8rem;
  color: #888;
  margin-top: 0.5rem;
  font-weight: 300;
}

/* =========================================
   灯箱 (Lightbox)
   ========================================= */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 10, 0.98);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.lightbox.visible {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.lightbox-close:hover {
  opacity: 1;
}

/* =========================================
   响应式调整
   ========================================= */
@media (max-width: 1024px) {
  .series-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .masonry-grid {
    column-count: 2;
  }
}

@media (max-width: 768px) {
  .series-container {
    padding: 4rem 1rem;
  }
  
  .series-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .series-header h1 {
    font-size: 2rem;
  }

  .masonry-grid {
    column-count: 1;
  }

  .detail-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .back-btn {
    align-self: flex-start;
    margin-top: 1rem;
  }
}

/* =========================================
   动画关键帧
   ========================================= */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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