:root {
  --color-brand: #25b9d7;
  --color-brand-dark: #1a8ea6;
  --color-bg-light: #f8fafc;
  --color-bg-white: #ffffff;
  --color-text-dark: #1e293b;
  --color-text-medium: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

body {
  font-family: var(--font-stack);
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-dark);
}

p {
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-sm);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header / Hero */
.header {
  background-color: var(--color-text-dark);
  color: var(--color-bg-white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  border-bottom: 4px solid var(--color-brand);
}

.logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.header-logo {
  height: 60px;
  width: auto;
  filter: brightness(0) invert(1); /* Make logo white for dark header */
  opacity: 0.9;
}

.hero-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-bg-white);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  font-weight: 300;
}

/* Main Content */
.main-content {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* Card Component */
.card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-brand);
}

.card-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background-color: var(--color-bg-light);
  color: var(--color-text-medium);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--color-border);
}

.card-badge.new {
  background-color: #dbeafe;
  color: #1e40af;
  border-color: #bfdbfe;
}

.card-title {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-dark);
}

.card-theme {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.card-desc {
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
}

/* Credentials Block */
.credentials {
  background-color: var(--color-bg-light);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  border: 1px dashed var(--color-border);
}

.cred-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
}

.cred-row:last-child {
  margin-bottom: 0;
}

.cred-label {
  color: var(--color-text-medium);
  font-weight: 500;
}

.cred-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--color-text-dark);
  background-color: var(--color-bg-white);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-brand);
  color: var(--color-bg-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  transition: background-color 0.2s ease;
  width: 100%;
}

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

.card-actions {
  display: grid;
  gap: var(--spacing-sm);
  margin-top: auto;
}

.btn-secondary {
  background-color: var(--color-bg-white);
  color: var(--color-brand-dark);
  border: 1px solid var(--color-brand);
}

.btn-secondary:hover {
  background-color: #e0f2fe;
  color: var(--color-brand-dark);
}

/* Info Section */
.info-section {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  background-color: #fffbeb; /* Light yellow warning bg */
  border-radius: var(--radius-md);
  border: 1px solid #fcd34d;
  color: #92400e;
}

.info-title {
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

/* Footer */
.footer {
  background-color: var(--color-bg-white);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  margin-top: auto;
  text-align: center;
  color: var(--color-text-medium);
  font-size: 0.875rem;
}

.footer-link {
  color: var(--color-brand);
  font-weight: 600;
}

.footer-link:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
}