/* _static/css/flagos-home.css */

/* Import fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Light mode variables */
  --flagos-blue: #1e6bff;
  --flagos-blue-dark: #0a4dbf;
  --flagos-blue-light: #e8f1ff;
  --flagos-gray-50: #f8f9fa;
  --flagos-gray-100: #f8f9fa;
  --flagos-gray-200: #e9ecef;
  --flagos-gray-300: #dee2e6;
  --flagos-gray-800: #343a40;
  --flagos-text: #212529;
  --flagos-text-light: #495057;
  --flagos-card-bg: #ffffff;
  --flagos-border: #e9ecef;
  --flagos-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --flagos-shadow-hover: 0 12px 24px rgba(30, 107, 255, 0.12);
}

* {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Basic reset for consistency */
body {
  background-color: #ffffff;
  color: var(--flagos-text);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Page header styles */
.flagos-header {
  text-align: center;
  margin: 0 auto 4rem;
  max-width: 800px;
  padding: 0 1rem;
}

.flagos-header h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--flagos-text);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.flagos-header p {
  font-size: 1.5rem;
  color: var(--flagos-text-light);
  line-height: 1.6;
  font-weight: 500;
}

/* Grid layout */
.flagos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 1rem;
}

/* Card styles - Light mode */
.flagos-card {
  background: var(--flagos-card-bg);
  border-radius: 12px;
  border: 1px solid var(--flagos-border);
  padding: 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: var(--flagos-shadow);
}

.flagos-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--flagos-shadow-hover);
  border-color: var(--flagos-blue);
}

.flagos-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--flagos-blue), #4dabff);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.flagos-card:hover::before {
  opacity: 1;
}

/* Icon styles */
.card-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  background: var(--flagos-blue-light);
  border: 1px solid rgba(30, 107, 255, 0.1);
}

.card-icon {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--flagos-blue);
}

/* Card title - Ensure sufficient contrast */
.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--flagos-text);
  margin-bottom: 1rem;
  line-height: 1.3;
}

/* Card description - Increase contrast */
.card-description {
  color: var(--flagos-text-light);
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
  font-weight: 400;
}

/* Card footer link button */
.card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--flagos-gray-200);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--flagos-blue);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.card-link:hover {
  color: var(--flagos-blue-dark);
  border-bottom-color: var(--flagos-blue);
}

.card-link::after {
  content: '→';
  font-size: 1.25em;
  transition: transform 0.2s ease;
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* Responsive design */
@media (max-width: 768px) {
  .flagos-header h1 {
    font-size: 2.25rem;
  }
  
  .flagos-header p {
    font-size: 1.125rem;
  }
  
  .flagos-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --flagos-blue: #4dabff;
    --flagos-blue-dark: #1e90ff;
    --flagos-blue-light: rgba(30, 107, 255, 0.15);
    --flagos-gray-50: #0d1117;
    --flagos-gray-100: #161b22;
    --flagos-gray-200: #21262d;
    --flagos-gray-300: #30363d;
    --flagos-gray-800: #f0f6fc;
    --flagos-text: #f0f6fc;
    --flagos-text-light: #8b949e;
    --flagos-card-bg: #161b22;
    --flagos-border: #30363d;
    --flagos-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --flagos-shadow-hover: 0 12px 24px rgba(30, 107, 255, 0.2);
  }
  
  body {
    background-color: #0d1117;
  }
  
  .flagos-card {
    background: var(--flagos-card-bg);
    border-color: var(--flagos-border);
  }
  
  .card-icon-wrapper {
    background: rgba(30, 107, 255, 0.1);
    border-color: rgba(30, 107, 255, 0.2);
  }
  
  .card-icon {
    color: var(--flagos-blue);
  }
  
  .card-footer {
    border-top-color: var(--flagos-gray-300);
  }
}

/* Override Sphinx theme styles */
.sd-card {
  border: none !important;
  box-shadow: none !important;
  background: transparent !important;
}

/* Bottom call to action area */
.call-to-action {
  text-align: center;
  margin: 4rem auto 0;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, var(--flagos-blue-light), rgba(30, 107, 255, 0.05));
  border-radius: 16px;
  max-width: 800px;
  border: 1px solid rgba(30, 107, 255, 0.1);
}

.call-to-action h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--flagos-text);
  margin-bottom: 1rem;
}

.call-to-action p {
  color: var(--flagos-text-light);
  margin-bottom: 2rem;
  line-height: 1.6;
  font-size: 1.125rem;
}

.call-to-action a {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--flagos-blue);
  color: white;
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.call-to-action a:hover {
  background: var(--flagos-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(30, 107, 255, 0.2);
}

.call-to-action svg {
  width: 20px;
  height: 20px;
}

/* Call to action area in dark mode */
@media (prefers-color-scheme: dark) {
  .call-to-action {
    background: linear-gradient(135deg, rgba(30, 107, 255, 0.1), rgba(30, 107, 255, 0.05));
    border-color: rgba(30, 107, 255, 0.2);
  }
}

/* FlagOS outline button styles */
.flagos-outline-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--flagos-blue);
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.125rem;
  transition: all 0.2s ease;
  border: 2px solid var(--flagos-blue);
  margin-top: 1rem;
}

.flagos-outline-btn:hover {
  background: var(--flagos-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 107, 255, 0.15);
}

/* dark mode for nav bar */
@media (prefers-color-scheme: dark) {
  /* 导航栏容器 */
  .bd-header,
  .navbar {
    background-color: var(--flagos-gray-100);
    border-bottom: 1px solid var(--flagos-border);
  }
  
  /* nav brand */
  .navbar-brand .title {
    color: var(--flagos-text) !important;
  }
  
  /* nav icon */
  .pst-navbar-icon svg,
  .search-button-field svg {
    color: var(--flagos-text);
  }
  
  /* search */
  .search-button-field {
    color: var(--flagos-text);
    background-color: var(--flagos-gray-200);
    border: 1px solid var(--flagos-border);
  }
  
  .search-button-field:hover {
    background-color: var(--flagos-gray-300);
  }
  
  /* kbd shortcut */
  .search-button__kbd-shortcut {
    color: var(--flagos-text-light);
  }
  
  .kbd-shortcut__modifier {
    background-color: var(--flagos-gray-300);
    color: var(--flagos-text);
    border: 1px solid var(--flagos-border);
  }
}

/* copyright color */
.footer-item .copyright {
  color: #f0f6fc; /* 浅色模式下深色 */
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.9;
}

/* Card layout optimization after removing icons */
.flagos-card {
  padding: 1.75rem; /* Slightly reduce padding */
}

.card-title {
  margin-top: 0.25rem; /* Reduce top margin */
  margin-bottom: 1.25rem; /* Increase bottom margin */
  font-size: 1.375rem; /* Slightly reduce title size */
}

.card-description {
  margin-bottom: 1.5rem; /* Reduce bottom margin */
  font-size: 0.95rem; /* Slightly reduce description text size */
  line-height: 1.5; /* Adjust line height */
}

.card-footer {
  padding-top: 1.25rem; /* Adjust top padding of footer area */
  border-top-width: 1px; /* Ensure border width */
}

/* Enhance border effect */
.flagos-card {
  border-width: 1.5px; /* Increase border width */
  border-color: var(--flagos-border);
}

.flagos-card:hover {
  border-width: 1.5px; /* Maintain border width on hover */
  border-color: var(--flagos-blue);
}

/* Adjust card hover effect */
.flagos-card:hover {
  transform: translateY(-4px); /* Reduce upward movement distance */
  box-shadow: 0 8px 20px rgba(30, 107, 255, 0.1); /* Adjust shadow intensity */
}

/* Ensure all cards have consistent height */
.flagos-card {
  display: flex;
  flex-direction: column;
  min-height: 220px; /* Set minimum height */
}

.card-description {
  flex-grow: 1; /* Let description area fill available space */
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .flagos-card {
    padding: 1.5rem;
    min-height: 200px;
  }
  
  .card-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }
  
  .card-description {
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
  }
}