/* 现代风尚男装视觉档案馆 - 全局样式 */

/* Tailwind CSS 配置 */
@tailwind base;
@tailwind components;
@tailwind utilities;

/* 自定义 CSS 变量 - 中性色系 */
:root {
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f5f5f5;
  --color-neutral-200: #e5e5e5;
  --color-neutral-300: #d4d4d4;
  --color-neutral-400: #a3a3a3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-800: #262626;
  --color-neutral-900: #171717;
  
  /* 强调色 */
  --color-accent-rust: #b85c38;
  --color-accent-mineral: #4a6fa5;
  
  /* 间距系统 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* 过渡时间 */
  --transition-fast: 0.2s;
  --transition-normal: 0.4s;
  --transition-slow: 0.6s;
}

/* 全局重置与基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-neutral-50);
  color: var(--color-neutral-900);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 导航栏样式 */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  transition: background var(--transition-normal) ease;
}

.nav-bar.scrolled {
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-neutral-900);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  color: var(--color-neutral-600);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast) ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-neutral-900);
  border-bottom-color: var(--color-neutral-900);
}

/* 页面容器 */
.page-container {
  padding-top: 80px;
  min-height: 100vh;
}

/* 英雄区域 */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0.2), rgba(0,0,0,0.4));
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: white;
  padding: var(--spacing-md);
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  opacity: 0.9;
}

/* 视觉索引卡片 */
.visual-index {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.index-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 3/4;
}

.index-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow) ease;
}

.index-card:hover img {
  transform: scale(1.05);
}

.card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  padding: var(--spacing-md);
  transform: translateY(100%);
  transition: transform var(--transition-normal) ease;
}

.index-card:hover .card-overlay {
  transform: translateY(0);
}

.card-title {
  color: white;
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.05em;
}

/* 页面标题区 */
.page-header {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.page-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  font-size: 1rem;
  color: var(--color-neutral-600);
  line-height: 1.8;
  font-weight: 300;
}

/* 瀑布流网格 */
.masonry-grid {
  column-count: 3;
  column-gap: var(--spacing-sm);
  padding: 0 var(--spacing-md) var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-sm);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.masonry-item img {
  width: 100%;
  display: block;
  transition: transform var(--transition-normal) ease, filter var(--transition-normal) ease;
}

.masonry-item:hover img {
  transform: scale(1.03);
  filter: brightness(1.1);
}

/* 灯箱效果 */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal) ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 2rem;
  color: white;
  background: none;
  border: none;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast) ease;
}

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

/* 六宫格布局 */
.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  padding: 0 var(--spacing-md) var(--spacing-xl);
  max-width: 1400px;
  margin: 0 auto;
}

.archive-cell {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-neutral-100);
  cursor: pointer;
  transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
}

.archive-cell:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.archive-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-normal) ease;
}

.archive-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(100%);
  transition: transform var(--transition-normal) ease;
}

.archive-cell:hover .archive-label {
  transform: translateY(0);
}

.archive-title {
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-xs);
}

.archive-description {
  font-size: 0.875rem;
  color: var(--color-neutral-600);
  line-height: 1.5;
}

/* 页脚 */
.footer {
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
  border-top: 1px solid var(--color-neutral-200);
}

.footer-text {
  font-size: 0.875rem;
  color: var(--color-neutral-500);
  letter-spacing: 0.05em;
}

/* 页面切换动画 */
.page-transition {
  animation: fadeIn var(--transition-slow) ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .visual-index {
    grid-template-columns: 1fr 1fr;
  }
  
  .masonry-grid {
    column-count: 2;
  }
  
  .archive-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-bar {
    padding: var(--spacing-sm);
  }
  
  .nav-logo {
    font-size: 1rem;
  }
  
  .nav-links {
    gap: var(--spacing-sm);
  }
  
  .nav-links a {
    font-size: 0.85rem;
  }
  
  .visual-index {
    grid-template-columns: 1fr;
  }
  
  .masonry-grid {
    column-count: 1;
  }
  
  .archive-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .page-header {
    padding: var(--spacing-md) var(--spacing-sm);
  }
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-neutral-300);
  border-top-color: var(--color-neutral-900);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 工具类 */
.text-center {
  text-align: center;
}

.max-w-container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-spacing {
  padding: var(--spacing-lg) var(--spacing-md);
}