/* ACB Community Builder — minimal accessible stylesheet */

*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #1a1a1a;
  background: #f9f9f9;
  margin: 0;
  padding: 0;
}

/* Skip link — visually hidden until focused */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: #005fac;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  z-index: 9999;
}
.skip-link:focus { left: 0; }

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

/* Layout */
header { background: #005fac; color: #fff; padding: 0.75rem 1.5rem; }
header nav { display: flex; align-items: center; gap: 2rem; }
header .site-name { font-weight: bold; font-size: 1.1rem; }
header nav ul { display: flex; list-style: none; margin: 0; padding: 0; gap: 1rem; }
header nav a, header nav button {
  color: #fff;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  padding: 0;
}
header nav a:hover, header nav button:hover { text-decoration: underline; }

main { max-width: 900px; margin: 2rem auto; padding: 0 1.5rem; }
h1 { margin-top: 0; }

/* Flash messages */
.flash-messages { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.flash { padding: 0.75rem 1rem; border-radius: 4px; margin-bottom: 0.5rem; }
.flash--success { background: #d4edda; border: 1px solid #c3e6cb; color: #155724; }
.flash--error   { background: #f8d7da; border: 1px solid #f5c6cb; color: #721c24; }
.flash--info    { background: #d1ecf1; border: 1px solid #bee5eb; color: #0c5460; }

/* Forms */
.field { margin-bottom: 1.25rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.25rem; }
.input {
  display: block;
  width: 100%;
  max-width: 30rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid #aaa;
  border-radius: 4px;
  font: inherit;
  font-size: 1rem;
}
.input:focus { outline: 3px solid #005fac; outline-offset: 1px; }
.field-error { color: #721c24; margin: 0.25rem 0 0; }
.field-hint  { color: #555; margin: 0.25rem 0 0; font-size: 0.9rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border: 1px solid #aaa;
  border-radius: 4px;
  background: #eee;
  color: #1a1a1a;
  font: inherit;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:focus { outline: 3px solid #005fac; outline-offset: 2px; }
.btn--primary { background: #005fac; border-color: #005fac; color: #fff; }
.btn--primary:hover { background: #004a8f; }
.btn--danger  { background: #dc3545; border-color: #dc3545; color: #fff; }
.btn--danger:hover { background: #b02a37; }
.btn--small { padding: 0.25rem 0.75rem; font-size: 0.875rem; }

/* Tables */
table { border-collapse: collapse; width: 100%; margin-top: 1rem; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid #ddd; }
th { background: #f0f0f0; font-weight: 600; }
tr:hover td { background: #f9f9f9; }

/* Card list */
.card-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; list-style: none; padding: 0; }
.card { display: block; padding: 1.25rem; border: 1px solid #ccc; border-radius: 6px; text-decoration: none; color: inherit; background: #fff; }
.card:hover { border-color: #005fac; }
.card h2 { margin: 0 0 0.4rem; font-size: 1.1rem; }
.card p  { margin: 0; color: #555; font-size: 0.9rem; }

/* Status indicators */
.status { padding: 0.5rem 1rem; border-radius: 4px; display: inline-block; }
.status--ok   { background: #d4edda; color: #155724; }
.status--warn { background: #fff3cd; color: #856404; }