:root {
  --portal-bg: #0f1a14;
  --portal-surface: #162820;
  --portal-border: rgba(255, 255, 255, 0.08);
  --portal-text: #e8f0eb;
  --portal-muted: #8aab97;
  --portal-accent: #c1d849;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'DM Sans', system-ui, sans-serif;
  background: radial-gradient(ellipse at top, #1a3328 0%, var(--portal-bg) 55%);
  color: var(--portal-text);
  display: flex;
  flex-direction: column;
}

.portal-header {
  padding: 2.5rem 1.5rem 1rem;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.portal-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.portal-logo-icon {
  font-size: 2rem;
  color: var(--portal-accent);
}

.portal-brand h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
}

.portal-brand p {
  margin: 0.25rem 0 0;
  color: var(--portal-muted);
  font-size: 0.95rem;
}

.portal-main {
  flex: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
  width: 100%;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.portal-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--portal-surface);
  border: 1px solid var(--portal-border);
  border-radius: 14px;
  padding: 1.25rem;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  height: 100%;
}

.portal-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--card-accent, var(--portal-accent)) 45%, transparent);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.portal-card-muted {
  opacity: 0.65;
  cursor: default;
}

.portal-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 0.85rem;
}

.portal-card-title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
}

.portal-card-desc {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  color: var(--portal-muted);
  line-height: 1.45;
}

.portal-card-link {
  font-size: 0.78rem;
  color: var(--card-accent, var(--portal-accent));
  font-weight: 600;
}

.portal-empty {
  text-align: center;
  color: var(--portal-muted);
  padding: 3rem;
}

.portal-footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.8rem;
  color: var(--portal-muted);
  border-top: 1px solid var(--portal-border);
}

.portal-footer a {
  color: var(--portal-accent);
  text-decoration: none;
  font-weight: 600;
}

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