/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.btn--accent {
  background: var(--color-gold);
  color: var(--color-accent);
}

.btn--accent:hover {
  background: #e5ac00;
  color: var(--color-accent);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ===== CARDS ===== */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.card__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card__body {
  padding: var(--space-lg);
}

.card__title {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.card__title a {
  text-decoration: none;
  color: var(--color-accent);
}

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

.card__meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.card__excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-primary);
  text-decoration: none;
}

/* ===== CATEGORY FILTER ===== */
.category-filter {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.filter-tab {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.filter-tab:hover,
.filter-tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ===== POST GRID ===== */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}

@media (max-width: 480px) {
  .post-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== RESOURCE LINK ===== */
.resource-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.resource-link:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 136, 203, 0.1);
  color: var(--color-primary);
}