/* Basic, clean styles – simple and not fancy */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: #1f2937;
  background: #f8fafc;
}

.container { max-width: 640px; margin: 40px auto; padding: 0 16px; }
header { margin-bottom: 24px; }
header h2 { margin: 0 0 8px; font-size: 24px; }
header p { margin: 0; color: #475569; }

.dropdown { position: relative; display: inline-block; }

.dropdown-menu-button {
  appearance: none;
  border: 1px solid #cbd5e1;
  background: white;
  color: #111827;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}
.dropdown-menu-button:hover { background: #f1f5f9; }
.dropdown-menu-button:focus { outline: none; }
.dropdown-menu-button:focus-visible { outline: 2px solid #2563eb; outline-offset: 2px; }

.dropdown-menu-ul {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 180px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  display: none;
}
.dropdown-menu-ul.visible { display: block; }

.dropdown-menu-ul li { margin: 0; }
.dropdown-item {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: #111827;
}
.dropdown-item:hover { background: #f1f5f9; }
.dropdown-item:focus { outline: none; }
.dropdown-item:focus-visible { outline: 2px solid #2563eb; outline-offset: 0; }
.dropdown-item:focus-visible:not(:hover) { background: transparent; }