/* Assignment 1 look, adapted for Assignment 2 structure */
html { scroll-behavior: smooth; }
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #222222;
  line-height: 1.6;
}

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  position: static; width: auto; height: auto;
  padding: .5rem .75rem; background: #0645ad; color: #fff; display: inline-block; margin: .25rem; border-radius: .375rem;
}

/* Layout container close to A1 max width */
.container { max-width: 800px; margin: 0 auto; padding: 0 16px; }

/* Header: light bar with centered title (A1 vibe) */
.site-header {
  background: #f2f2f2;
  padding: 20px 0 10px;
  border-bottom: 1px solid #e6e6e6;
  text-align: center;
}
.site-header .brand { display: block; }
.site-header h1 { margin: 0; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.tagline { margin: 6px 0 0; color: #555555; }

/* Navigation: light gray bar, centered blue links */
.site-nav {
  background: #e0e0e0;
  padding: 10px 0;
  text-align: center;
  border-bottom: 1px solid #d7d7d7;
}
.nav-list {
  list-style: none;
  display: inline-flex;
  gap: 12px;
  margin: 0;
  padding: 0;
  align-items: center;
}
.site-nav a {
  color: #0645ad;
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 4px;
}
.site-nav a:hover, .site-nav a:focus {
  text-decoration: underline;
  background: #f5f5f5;
}
/* Accessible dropdown using details/summary, styled simply */
details.nav-submenu { position: relative; display: inline-block; }
details.nav-submenu > summary {
  list-style: none; cursor: pointer; outline: none;
  color: #0645ad; padding: 6px 8px; border-radius: 4px;
}
details.nav-submenu > summary::-webkit-details-marker { display: none; }
details.nav-submenu > summary:focus { outline: 2px solid #0645ad; outline-offset: 2px; }
details.nav-submenu[open] > summary { text-decoration: underline; background: #f5f5f5; }
.submenu {
  position: absolute; left: 0;
  min-width: 220px; margin-top: 6px; padding: 6px 0;
  list-style: none; background: #ffffff; border: 1px solid #cccccc; border-radius: 6px; box-shadow: none;
  z-index: 5;
}
.submenu li a { display: block; padding: 8px 12px; }
.submenu li a:hover, .submenu li a:focus { background: #f2f2f2; outline: none; }

/* Main content spacing */
main { padding: 20px 0; }

/* Simple "card" blocks that still look A1-light */
.card {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
}

/* Hero block and image */
.hero {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: center;
  margin: 8px 0;
}
.hero img {
  width: 140px; height: 140px; object-fit: cover;
  border: 1px solid #dddddd;
  border-radius: 6px; /* square-ish; remove circle for A1 minimal look */
}
.caption { margin: 0; color: #555555; font-size: .95rem; }

/* Footer: light gray strip, centered text */
.site-footer {
  background: #f2f2f2;
  text-align: center;
  padding: 10px 0;
  font-size: 0.9em;
  color: #555555;
  border-top: 1px solid #e6e6e6;
}

/* General link color */
a { color: #0645ad; }
a:focus-visible { outline: 2px solid #0645ad; outline-offset: 2px; }

/* Small screens */
@media (max-width: 640px) {
  .hero { grid-template-columns: 1fr; }
}