/* AI Reports — Original style (for homepage) */

:root {
  --primary: #ff3f00;
  --primary-hover: #e63a00;
  --secondary: #2563eb;
  --bg: #ffffff;
  --bg-secondary: #f7f7f7;
  --bg-card: #ffffff;
  --text: #1a1a1a;
  --text-secondary: #666666;
  --text-muted: #999999;
  --border: #e5e5e5;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --max-w: 1200px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12), 0 4px 10px rgba(0, 0, 0, 0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary);
  text-decoration: none;
}

/* Navbar */
.navbar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.98);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
  padding: 5rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--text);
  line-height: 1.1;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

/* Container */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* Section labels */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Editor's Picks */
.editor-picks {
  margin-bottom: 3rem;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 1.5rem;
}

.featured-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 63, 0, 0.2);
}

.featured-card .card-category {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.featured-card .card-title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.featured-card .card-excerpt {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.featured-card .card-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 1.5rem;
  font-weight: 500;
}

/* Reports section */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.search-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.25rem;
  color: var(--text);
  font-size: 0.95rem;
  width: 300px;
  outline: none;
  transition: all 0.2s ease;
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 63, 0, 0.1);
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* Filter chips */
.filter-chips {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Report grid */
.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}

.report-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  min-height: 240px;
}

.report-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 63, 0, 0.2);
}

.report-card .card-category {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.6rem;
}

.report-card .card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.report-card .card-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.report-card .card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 1.25rem;
  font-weight: 500;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2.5rem;
}

.page-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  background: var(--bg-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 3rem 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .featured-grid,
  .report-grid {
    grid-template-columns: 1fr;
  }

  .search-input {
    width: 100%;
  }

  .nav-links {
    gap: 1rem;
  }

  .container {
    padding: 2rem 1rem;
  }
}

/* Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.featured-card,
.report-card {
  animation: fadeIn 0.4s ease forwards;
}

.featured-card:nth-child(2),
.report-card:nth-child(2) {
  animation-delay: 0.1s;
}

.featured-card:nth-child(3),
.report-card:nth-child(3) {
  animation-delay: 0.2s;
}