/* Custom Styles for ProteinDF Portal */

/* Hero Section */
.hero-container {
  text-align: center;
  padding: 3rem 1rem 2rem;
  margin-bottom: 2rem;
  background: radial-gradient(circle at 50% 30%, rgba(63, 81, 181, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  border-radius: 12px;
}

.hero-logo {
  max-width: 180px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  margin-bottom: 1.5rem;
  transition: transform 0.3s ease;
}

.hero-logo:hover {
  transform: scale(1.05);
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--md-default-fg-color--light);
  max-width: 680px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

/* Hero Button Group */
.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.hero-btn-primary {
  background-color: var(--md-primary-fg-color);
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(63, 81, 181, 0.35);
}

.hero-btn-primary:hover {
  background-color: var(--md-primary-fg-color--dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(63, 81, 181, 0.45);
}

.hero-btn-secondary {
  background-color: var(--md-code-bg-color);
  color: var(--md-default-fg-color) !important;
  border: 1px solid var(--md-default-fg-color--lightest);
}

.hero-btn-secondary:hover {
  background-color: var(--md-default-fg-color--lightest);
  transform: translateY(-2px);
}

/* Card Enhancements */
.grid.cards > ul > li {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  transition: all 0.25s ease;
}

.grid.cards > ul > li:hover {
  border-color: var(--md-accent-fg-color);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

[data-md-color-scheme="slate"] .grid.cards > ul > li:hover {
  box-shadow: 0 8px 20px rgba(0, 200, 255, 0.15);
}

/* Publication Citation Card */
.citation-card {
  padding: 1.2rem;
  margin-bottom: 1.5rem;
  background-color: var(--md-code-bg-color);
  border-left: 4px solid var(--md-primary-fg-color);
  border-radius: 0 8px 8px 0;
}