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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  color: #333;
  line-height: 1.6;
  background: #f8f9fa;
}

/* Login Page */
.login-page {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 1rem;
}

.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 3rem 2.5rem;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-card h1 {
  font-size: 1.8rem;
  color: #1a1a2e;
  margin-bottom: 0.5rem;
}

.login-card .subtitle {
  color: #666;
  margin-bottom: 2rem;
}

.login-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: #0f3460;
  color: #fff;
}

.btn-primary:hover {
  background: #1a4a7a;
  transform: translateY(-1px);
}

.btn-small {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
}

.btn-small:hover {
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: #1a1a2e;
  color: #fff;
}

.nav-brand {
  font-size: 1.3rem;
  font-weight: 700;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

/* Main Content */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}

.hero {
  text-align: center;
  padding: 3rem 1rem;
}

.hero h1 {
  font-size: 2.2rem;
  color: #1a1a2e;
  margin-bottom: 0.75rem;
}

.hero p {
  font-size: 1.1rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

.content {
  padding: 1rem 0 3rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card h2 {
  font-size: 1.2rem;
  color: #1a1a2e;
  margin-bottom: 0.5rem;
}

.card p {
  color: #555;
}

code {
  background: #e9ecef;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: #999;
  font-size: 0.85rem;
  border-top: 1px solid #e9ecef;
}

/* Page content */
.page-content {
  background: #fff;
  border-radius: 10px;
  padding: 3rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.page-content h1 {
  color: #1a1a2e;
  margin-bottom: 1rem;
}

.page-content p {
  color: #555;
  margin-bottom: 1rem;
}

/* Portal */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.portal-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-decoration: none;
  color: #1a1a2e;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.2s ease;
}

.portal-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  background: #1a1a2e;
  color: #fff;
}

.portal-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.portal-card h2 {
  font-size: 1.15rem;
  text-align: center;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2rem;
  color: #999;
  font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero h1 {
    font-size: 1.6rem;
  }
}