:root {
  --color-background: #111827; /* gray-900 */
  --color-surface: #1F2937;    /* gray-800 */
  --color-surface-hover: #374151; /* gray-700 */
  --color-border: #374151;      /* gray-700 */
  --color-border-hover: #4B5563; /* gray-600 */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #D1D5DB; /* gray-300 */
  --color-text-tertiary: #9CA3AF; /* gray-400 */
  --color-text-muted: #6B7280;   /* gray-500 */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --selection-bg: #374151;
  --selection-text: #FFFFFF;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px; /* Base font size */
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-hover) var(--color-background);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-background);
}
::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #6B7280; 
}

body {
  font-family: var(--font-family-sans);
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.5rem 1rem; /* Reduced top/bottom padding */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

::selection {
  background-color: var(--selection-bg);
  color: var(--selection-text);
}

/* Container for main content */
.container {
  width: 100%;
  max-width: 60rem; /* Increased from 56rem (approx max-w-5xl) */
  display: flex;
  flex-direction: column;
  gap: 2.5rem; /* space-y-10, reduced from 3rem */
  padding-top: 1.5rem; /* Reduced top padding */
  padding-bottom: 2.5rem; /* py-10 for main content area before footer */
  flex-grow: 1; /* Allows footer to be pushed down */
}

/* Header */
.main-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.75rem; 
}

.headline {
  font-size: 2.25rem; 
  font-weight: 700; 
  color: var(--color-text-primary);
  letter-spacing: -0.025em; 
}

.subheadline {
  font-size: 1.125rem; 
  color: var(--color-text-tertiary);
  font-weight: 300; 
}

.description {
  font-size: 1rem; 
  color: var(--color-text-secondary);
  line-height: 1.75; 
  max-width: 42rem; 
  margin-left: auto;
  margin-right: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.services-section {
  width: 100%;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr; 
  gap: 1.25rem; 
}

.option-card {
  display: block;
  padding: 1.5rem; 
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem; 
  text-decoration: none;
  transition: all 0.3s ease-in-out;
}

.option-card:hover,
.option-card:focus {
  background-color: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1), 0 0 0 1px var(--color-border-hover); 
}

.option-label {
  font-size: 1.125rem; 
  font-weight: 600; 
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.arrow-icon {
  width: 1rem; /* Consistent size */
  height: 1rem; /* Consistent size */
  margin-left: 0.375rem; 
  opacity: 0.7;
  transition: all 0.2s ease-in-out;
  flex-shrink: 0; /* Prevents shrinking if label is long */
}

.option-card:hover .arrow-icon,
.option-card:focus .arrow-icon {
  opacity: 1;
  transform: translateX(2px) translateY(-2px);
}

.option-hover-text {
  font-size: 0.875rem; 
  color: var(--color-text-tertiary);
  line-height: 1.6; 
  transition: color 0.3s ease-in-out;
}

.option-card:hover .option-hover-text,
.option-card:focus .option-hover-text {
  color: var(--color-text-secondary);
}

.latest-resource-section {
  padding-top: 1rem; 
}

.special-link-card {
  display: block;
  width: 100%;
  padding: 1.25rem; 
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem; 
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease-in-out;
}

.special-link-card:hover,
.special-link-card:focus {
  background-color: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  transform: scale(1.01);
}

.special-link-prefix {
  font-size: 0.875rem; 
  color: var(--color-text-tertiary);
  transition: color 0.3s ease-in-out;
}

.special-link-card:hover .special-link-prefix,
.special-link-card:focus .special-link-prefix {
  color: var(--color-text-secondary);
}

.special-link-title {
  font-size: 1.125rem; 
  font-weight: 600; 
  color: var(--color-text-primary);
  margin-top: 0.25rem;
  display: inline-flex; 
  align-items: center;
}

.special-link-arrow { /* Ensures special link arrow uses the .arrow-icon base styles if needed or can be specific */
  width: 1rem; /* Consistent size */
  height: 1rem; /* Consistent size */
  margin-left: 0.375rem; 
  margin-bottom: 0.125rem; 
  transition: transform 0.2s ease-in-out;
}

.special-link-card:hover .special-link-arrow,
.special-link-card:focus .special-link-arrow {
  transform: translateX(2px) translateY(-2px);
}

/* Footer */
.main-footer {
  width: 100%; /* Full viewport width */
  padding-top: 1.5rem; /* Reduced padding */
  padding-bottom: 1.5rem; /* Added bottom padding */
  border-top: 1px solid var(--color-border);
  background-color: var(--color-background); /* Match body or be distinct if desired */
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.75rem; 
}

.footer-content-wrapper {
  width: 100%;
  max-width: 60rem; /* Match main container's max-width for content alignment */
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;  /* Match body's horizontal padding */
  padding-right: 1rem; /* Match body's horizontal padding */
  display: flex;
  flex-direction: column;
  gap: 0.75rem; /* Reduced gap from 1rem */
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem; 
}

.footer-nav a {
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color 0.2s ease-in-out;
}

.footer-nav a:hover,
.footer-nav a:focus {
  color: var(--color-text-primary);
  text-decoration: underline;
}

.footer-separator {
  color: #4A5568; 
}

.footer-disclaimer {
  max-width: 48rem; /* Adjusted to fit well within the 60rem wrapper */
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6; 
}

/* Responsive Adjustments */
@media (min-width: 640px) {
  body {
    padding: 0.75rem 1.5rem; /* sm:p-6 equivalent with reduced top */
  }
  .container {
     padding-top: 2rem; /* sm:py-8 top equivalent */
  }
  .main-header {
    gap: 1rem; 
  }
  .headline {
    font-size: 3rem; 
  }
  .subheadline {
    font-size: 1.25rem; 
  }
  .description {
    font-size: 1.125rem; 
  }
  .option-label {
    font-size: 1.25rem; 
  }
  /* Arrow icons remain 1rem, responsive size change removed */
  .special-link-card {
    padding: 1.5rem; 
  }
  .special-link-title {
    font-size: 1.25rem; 
  }
  .main-footer {
    font-size: 0.875rem; 
  }
   .footer-content-wrapper {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  .footer-nav {
    gap: 0.75rem; 
  }
}

@media (min-width: 768px) {
  body {
    padding: 1rem 2rem; /* md:p-8 equivalent with reduced top */
  }
   .container {
    gap: 3.5rem; /* md:space-y-14, reduced from 4rem */
    padding-top: 2.5rem; /* md:py-10 top equivalent */
  }
  .headline {
    font-size: 3.75rem; 
  }
  .subheadline {
    font-size: 1.5rem; 
  }
  .options-grid {
    grid-template-columns: repeat(3, 1fr); 
    gap: 1.5rem; 
  }
  .latest-resource-section {
    padding-top: 1.5rem; 
  }
  .main-footer {
    padding-top: 2rem; /* md:pt-8, reduced from 3rem */
    padding-bottom: 2rem;
  }
  .footer-content-wrapper {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}