@font-face {
  font-family: 'Aptos';
  src: local('Aptos');
}

:root {
  --bg: #192232;
  --bg-card: #1e2a3a;
  --bg-card-hover: #243344;
  --teal: #13BBB2;
  --teal-dim: rgba(19, 187, 178, 0.15);
  --text: #e4e8ed;
  --text-muted: #8a95a5;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 10px;
}

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

body {
  font-family: 'Aptos', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

header {
  margin-bottom: 2.5rem;
}

h1 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 0.25rem;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.filter-btn.active {
  background: var(--teal-dim);
  border-color: var(--teal);
  color: var(--teal);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--teal);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.card-tag {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  background: var(--teal-dim);
  color: var(--teal);
  white-space: nowrap;
  flex-shrink: 0;
}

.card-description {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.card-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.card-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.card.hidden {
  display: none;
}