/* ===============================================
   AdaReasoner 网页设计增强 - 简洁现代风格
   基于Logo色系：深蓝绿 + 青色 + 黄绿色
   Design Enhancement - Minimalist & Memorable
   =============================================== */

/* ============ 色彩系统（提取自Logo） ============ */
:root {
  --primary-teal: #1E7A8C;        /* Logo主色-深蓝绿 */
  --primary-cyan: #00BCD4;        /* Logo亮青色 */
  --accent-green: #7CB342;        /* Logo黄绿色 */
  --dark-gray: #2C3E50;           /* 深灰 */
  --light-bg: #F8FAFB;            /* 极浅青色背景 */
  --white: #FFFFFF;
  --shadow-soft: 0 4px 12px rgba(30, 122, 140, 0.08);
  --shadow-hover: 0 8px 24px rgba(30, 122, 140, 0.15);
}

/* ============ 1. 统一白色背景 ============ */
body {
  background-color: var(--white);
}

/* 所有section统一白色背景 */
section.hero,
section.hero.teaser,
section {
  background-color: var(--white) !important;
}

/* ============ 2. 关键数字渐变色强调 ============ */
.gradient-accent {
  background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

/* 自动应用到加粗的百分比和关键词 */
strong {
  color: var(--primary-teal) !important;
  font-weight: 700 !important;
}

.content p strong:contains('+'),
.content p strong:contains('%'),
.content p strong:contains('AdaReasoner'),
.content p strong:contains('GPT') {
  background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============ 3. 图片展示优化 ============ */
.image img,
.single-image-display-wrapper img,
.static-display-image,
.hero.teaser img {
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.image img:hover,
.static-display-image:hover {
  /* 取消浮动效果 */
  box-shadow: var(--shadow-hover);
  cursor: pointer;
}

/* ============ 4. 按钮组优化（Logo色系） ============ */
.publication-links .button {
  background-color: var(--dark-gray) !important;
  border: 2px solid transparent !important;
  transition: all 0.3s ease !important;
  font-weight: 500 !important;
}

.publication-links .button:hover {
  background-color: var(--primary-teal) !important;
  border-color: var(--primary-teal) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(30, 122, 140, 0.25);
}

/* GitHub按钮特殊样式 */
.publication-links .button:has(.fa-github):hover {
  background-color: var(--primary-cyan) !important;
}

/* ============ 5. Key Features 卡片增强 ============ */
.key-features .box,
section:has(.title:contains('Key Features')) .box {
  border-left: 4px solid var(--primary-teal);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--white);
}

.key-features .box:hover,
section:has(.title:contains('Key Features')) .box:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-left-color: var(--primary-cyan);
}

/* 不同卡片不同色彩 */
.key-features .column:nth-child(1) .box {
  border-left-color: var(--primary-teal);
}

.key-features .column:nth-child(2) .box {
  border-left-color: var(--primary-cyan);
}

.key-features .column:nth-child(3) .box {
  border-left-color: var(--accent-green);
}

/* ============ 6. 标题优化 ============ */
.title.is-3,
h2.title {
  color: var(--dark-gray) !important;
  position: relative;
  padding-bottom: 1rem;
}

/* 标题下方装饰线 */
.title.is-3::after,
h2.title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-teal), var(--primary-cyan));
  border-radius: 2px;
}

/* ============ 7. Hero区域优化 ============ */
.hero.teaser {
  position: relative;
  overflow: hidden;
}

/* Teaser背景微妙渐变 */
.hero.teaser::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(30, 122, 140, 0.02) 0%, 
    rgba(0, 188, 212, 0.03) 100%);
  pointer-events: none;
}

/* ============ 8. 表格优化 ============ */
.table {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.table thead {
  background: linear-gradient(135deg, var(--primary-teal), var(--primary-cyan));
}

.table thead th {
  color: white !important;
  font-weight: 600 !important;
  border: none !important;
}

.table tbody tr {
  transition: background-color 0.2s ease;
}

.table tbody tr:hover {
  background-color: rgba(30, 122, 140, 0.05);
}

/* ============ 9. 视频容器优化 ============ */
.responsive-video-wrapper,
#video-section iframe {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

/* ============ 10. BibTeX区域优化 ============ */
#BibTeX .content {
  position: relative;
}

#BibTeX pre {
  background-color: var(--light-bg) !important;
  border: 1px solid rgba(30, 122, 140, 0.1);
  border-radius: 8px;
  padding: 1.5rem;
  position: relative;
}

/* 添加复制按钮 */
#BibTeX pre::before {
  content: 'Copy';
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--primary-teal);
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: 'Noto Sans', sans-serif;
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0.8;
}

#BibTeX pre:hover::before {
  opacity: 1;
  transform: scale(1.05);
}

/* ============ 11. 页面加载动画（简洁） ============ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.map-wrapper {
  max-width: 800px;     /* 👈 控制宽度，比如 700 / 800 / 900 */
  margin: 0 auto;       /* 居中 */
}
section {
  animation: fadeInUp 0.6s ease-out;
}

/* 依次延迟 */
section:nth-child(1) { animation-delay: 0s; }
section:nth-child(2) { animation-delay: 0.1s; }
section:nth-child(3) { animation-delay: 0.2s; }
section:nth-child(4) { animation-delay: 0.3s; }

/* ============ 12. 滚动优化 ============ */
html {
  scroll-behavior: smooth;
}

/* ============ 13. Logo动效（微妙） ============ */
.hero img[alt*="Logo"] {
  transition: none;
  transform: none;
}

/* ============ 14. 链接颜色统一 ============ */
a {
  color: var(--primary-teal);
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-cyan);
}

.publication-authors a {
  color: #2097A7 !important;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.publication-authors a:hover {
  border-bottom-color: var(--primary-cyan);
}

/* ============ 15. Footer优化 ============ */
.footer {
  background-color: var(--light-bg);
  border-top: 1px solid rgba(30, 122, 140, 0.1);
}

/* ============ 16. 移动端优化 ============ */
@media (max-width: 768px) {
  .title.is-3::after,
  h2.title::after {
    width: 80px;
    height: 2px;
  }
  
  .publication-links .button {
    margin-bottom: 0.5rem;
  }
}

/* ============ 17. 打印样式 ============ */
@media print {
  .navbar,
  .publication-links,
  .footer {
    display: none;
  }
  
  section {
    page-break-inside: avoid;
  }
}

/* ============ 18. 焦点状态优化（可访问性） ============ */
button:focus,
a:focus {
  outline: 2px solid var(--primary-cyan);
  outline-offset: 2px;
}

/* ============ 19. 选中文本颜色 ============ */
::selection {
  background-color: rgba(30, 122, 140, 0.2);
  color: var(--dark-gray);
}

::-moz-selection {
  background-color: rgba(30, 122, 140, 0.2);
  color: var(--dark-gray);
}

/* ============ 20. 加载状态 ============ */
img {
  background: linear-gradient(90deg, 
    var(--light-bg) 0%, 
    rgba(30, 122, 140, 0.05) 50%, 
    var(--light-bg) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

img[src] {
  animation: none;
  background: none;
}