/* =====================================================================
 * zine-project.css — 极简杂志风格项目详情页
 * 
 * 设计DNA来源：gc-minimal-zine-poster
 * - 大面积留白（70-90% 空间）
 * - 单高饱和色彩锚点
 * - 旧纸/扫描纹理质感
 * - 实验性排版
 * - 克制诗意情绪
 * ===================================================================== */

/* ===== 1. 全局变量 ===== */
:root {
  /* 项目主题色 — 每个项目独立 */
  --zine-agenthub: #1C3C3C;
  --zine-docrag: #2496ED;
  --zine-projhelp: #009688;
  --zine-tuning: #9B59B6;
  
  /* 默认项目色 */
  --zine-accent: var(--zine-agenthub);
  --zine-accent-light: rgba(28, 60, 60, 0.1);
  --zine-accent-medium: rgba(28, 60, 60, 0.3);
  
  /* 纸张质感 */
  --zine-paper: #F7F4ED;
  --zine-paper-deep: #F0ECE3;
  --zine-ink: #1C1C1C;
  --zine-ink-secondary: #4A4440;
  --zine-ink-muted: #7A756E;
  --zine-ink-faint: #B5B0A8;
  --zine-divider: #D8D4CB;
  
  /* 暗色主题 */
  --zine-dark-paper: #1A1917;
  --zine-dark-paper-deep: #141311;
  --zine-dark-ink: #E8E6E1;
  --zine-dark-ink-secondary: #B5B0A8;
  --zine-dark-ink-muted: #8A857E;
  --zine-dark-ink-faint: #5A5550;
  --zine-dark-divider: #3A3530;
}

[data-theme="dark"] {
  --zine-paper: var(--zine-dark-paper);
  --zine-paper-deep: var(--zine-dark-paper-deep);
  --zine-ink: var(--zine-dark-ink);
  --zine-ink-secondary: var(--zine-dark-ink-secondary);
  --zine-ink-muted: var(--zine-dark-ink-muted);
  --zine-ink-faint: var(--zine-dark-ink-faint);
  --zine-divider: var(--zine-dark-divider);
}

/* ===== 2. 页面容器 ===== */
.zine-page {
  position: relative;
  min-height: 100vh;
  background: var(--zine-paper);
  overflow: hidden;
}

/* 纸张纹理叠加 */
.zine-page::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: var(--noise-url, none);
  background-repeat: repeat;
  opacity: var(--noise-opacity, 0.03);
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
}

[data-theme="dark"] .zine-page::before {
  mix-blend-mode: soft-light;
  opacity: 0.05;
}

/* ===== 3. Hero 区域 — 大面积留白 ===== */
.zine-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 15vh 10vw;
  z-index: 2;
}

/* 装饰光晕 */
.zine-hero::before {
  content: '';
  position: absolute;
  top: 20%;
  right: 15%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--zine-accent-light) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.6;
}

/* ===== 4. 排版系统 ===== */

/* 项目编号 — 小字 archive 风格 */
.zine-project-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--zine-ink-faint);
  margin-bottom: 2rem;
}

/* 项目标题 — 大字 serif */
.zine-title {
  font-family: 'Cormorant Garamond', 'Noto Serif SC', Georgia, serif;
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--zine-ink);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

/* 副标题 — 小字 sans */
.zine-subtitle {
  font-family: 'Work Sans', sans-serif;
  font-size: 1rem;
  font-weight: 300;
  color: var(--zine-ink-muted);
  max-width: 500px;
  line-height: 1.8;
  margin-bottom: 3rem;
}

/* 装饰线 */
.zine-divider {
  width: 40px;
  height: 2px;
  background: var(--zine-accent);
  margin: 2rem 0;
}

/* 标签组 */
.zine-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.zine-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--zine-ink-muted);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--zine-divider);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out-quart);
}

.zine-tag:hover {
  border-color: var(--zine-accent);
  color: var(--zine-accent);
  background: var(--zine-accent-light);
}

/* ===== 5. 内容区域 — 稀疏布局 ===== */
.zine-content {
  position: relative;
  z-index: 2;
  padding: 10vh 10vw 15vh;
}

/* 内容块 — 大量留白 */
.zine-section {
  margin-bottom: 15vh;
  max-width: 700px;
}

.zine-section:last-child {
  margin-bottom: 0;
}

/* 区域标题 */
.zine-section-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--zine-ink-faint);
  margin-bottom: 2rem;
}

/* 区域内容 */
.zine-section-content {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--zine-ink-secondary);
  line-height: 2;
}

.zine-section-content p {
  margin-bottom: 1.5em;
}

.zine-section-content p:last-child {
  margin-bottom: 0;
}

/* ===== 6. 特性列表 — 稀疏卡片 ===== */
.zine-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: 3rem;
}

.zine-feature {
  position: relative;
  padding-left: 2rem;
  border-left: 1px solid var(--zine-divider);
  transition: all 0.4s var(--ease-out-quart);
}

.zine-feature::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 0;
  background: var(--zine-accent);
  transition: height 0.4s var(--ease-out-quart);
}

.zine-feature:hover::before {
  height: 100%;
}

.zine-feature-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--zine-ink-faint);
  margin-bottom: 0.5rem;
}

.zine-feature-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--zine-ink);
  margin-bottom: 0.5rem;
}

.zine-feature-desc {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--zine-ink-muted);
  line-height: 1.8;
}

/* ===== 7. 截图区域 — 画框风格 ===== */
.zine-screenshots {
  margin-top: 10vh;
}

.zine-screenshot-frame {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
  background: var(--zine-paper-deep);
  border: 1px solid var(--zine-divider);
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.04);
  transition: all 0.4s var(--ease-out-quart);
}

.zine-screenshot-frame:hover {
  transform: translateY(-4px);
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.06),
    0 16px 40px rgba(0, 0, 0, 0.08);
}

.zine-screenshot-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.zine-screenshot-caption {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--zine-ink-faint);
  text-align: center;
  margin-top: 1rem;
  text-transform: uppercase;
}

/* ===== 8. 技术栈 — 简约列表 ===== */
.zine-tech-stack {
  margin-top: 5vh;
}

.zine-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
  padding: 0;
}

.zine-tech-item {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--zine-ink-muted);
  padding: 0.5rem 1rem;
  border: 1px solid var(--zine-divider);
  transition: all 0.3s var(--ease-out-quart);
}

.zine-tech-item:hover {
  border-color: var(--zine-accent);
  color: var(--zine-accent);
}

/* ===== 9. CTA 区域 ===== */
.zine-cta {
  position: relative;
  padding: 15vh 10vw;
  text-align: center;
  z-index: 2;
}

.zine-cta-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 300;
  color: var(--zine-ink);
  margin-bottom: 1rem;
}

.zine-cta-desc {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--zine-ink-muted);
  margin-bottom: 3rem;
}

.zine-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--zine-paper);
  background: var(--zine-accent);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s var(--ease-out-quart);
  position: relative;
  overflow: hidden;
}

.zine-cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s var(--ease-out-quart);
}

.zine-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.zine-cta-btn:hover::before {
  left: 100%;
}

/* ===== 10. 页脚 ===== */
.zine-footer {
  padding: 5vh 10vw;
  border-top: 1px solid var(--zine-divider);
  z-index: 2;
  position: relative;
}

.zine-footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--zine-ink-faint);
  text-transform: uppercase;
}

.zine-footer-link {
  color: var(--zine-ink-muted);
  text-decoration: none;
  transition: color 0.2s var(--ease-out-quart);
}

.zine-footer-link:hover {
  color: var(--zine-accent);
}

/* ===== 11. 项目主题色覆盖 ===== */
.zine-page[data-project="agenthub"] {
  --zine-accent: #1C3C3C;
  --zine-accent-light: rgba(28, 60, 60, 0.1);
  --zine-accent-medium: rgba(28, 60, 60, 0.3);
}

.zine-page[data-project="docrag"] {
  --zine-accent: #2496ED;
  --zine-accent-light: rgba(36, 150, 237, 0.1);
  --zine-accent-medium: rgba(36, 150, 237, 0.3);
}

.zine-page[data-project="projhelp"] {
  --zine-accent: #009688;
  --zine-accent-light: rgba(0, 150, 136, 0.1);
  --zine-accent-medium: rgba(0, 150, 136, 0.3);
}

.zine-page[data-project="tuning"] {
  --zine-accent: #9B59B6;
  --zine-accent-light: rgba(155, 89, 182, 0.1);
  --zine-accent-medium: rgba(155, 89, 182, 0.3);
}

/* ===== 12. 入场动画 ===== */
.zine-fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease-out-quart),
              transform 0.8s var(--ease-out-quart);
}

.zine-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.zine-fade-in-delay-1 { transition-delay: 0.1s; }
.zine-fade-in-delay-2 { transition-delay: 0.2s; }
.zine-fade-in-delay-3 { transition-delay: 0.3s; }
.zine-fade-in-delay-4 { transition-delay: 0.4s; }
.zine-fade-in-delay-5 { transition-delay: 0.5s; }

/* ===== 13. 滚动指示器 ===== */
.zine-scroll-hint {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--zine-ink-faint);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.zine-scroll-hint::after {
  content: '';
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--zine-ink-faint), transparent);
  animation: zine-scroll-pulse 2s var(--ease-in-out-quart) infinite;
}

@keyframes zine-scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== 14. 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .zine-page::before {
    display: none;
  }
  
  .zine-fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  .zine-feature::before {
    transition: none;
  }
  
  .zine-screenshot-frame,
  .zine-cta-btn,
  .zine-tag,
  .zine-tech-item {
    transition: none;
  }
  
  .zine-screenshot-frame:hover,
  .zine-cta-btn:hover {
    transform: none;
  }
  
  .zine-scroll-hint::after {
    animation: none;
  }
}

/* ===== 15. 响应式 ===== */
@media (max-width: 768px) {
  .zine-hero {
    min-height: 80vh;
    padding: 10vh 6vw;
  }
  
  .zine-content {
    padding: 8vh 6vw 12vh;
  }
  
  .zine-cta {
    padding: 10vh 6vw;
  }
  
  .zine-title {
    font-size: clamp(2rem, 10vw, 3.5rem);
  }
  
  .zine-features {
    gap: 2rem;
  }
  
  .zine-screenshot-frame {
    padding: 1rem;
  }
  
  .zine-footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .zine-hero {
    min-height: 70vh;
    padding: 8vh 5vw;
  }
  
  .zine-content {
    padding: 6vh 5vw 10vh;
  }
  
  .zine-cta {
    padding: 8vh 5vw;
  }
}