:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  --bg: #fdfdfd;
  --panel: #ffffff;
  --text: #24292e;
  --muted: #6a737d;
  --accent: #0366d6;
  --accent-dark: #0256b3;
  --border: #e1e4e8;
  --shadow: 0 1px 3px rgba(27, 31, 35, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.toolbar {
  margin-bottom: 1rem;
}

.search-field {
  display: block;
}

.search-field input {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  box-shadow: inset 0 1px 2px rgba(27, 31, 35, 0.04);
}

.search-field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(3, 102, 214, 0.2);
}

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.9rem;
  align-items: end;
  margin-bottom: 1rem;
}

.filter-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.filter-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

select,
button {
  font: inherit;
}

select {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.7rem;
  min-height: 2.8rem;
  background: var(--panel);
  color: var(--text);
}

select[multiple] {
  min-height: 8rem;
}

button {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

button:hover {
  background: #f6f8fa;
  border-color: #d0d7de;
}

button#selectAllButton,
button#deselectAllButton,
button#openAllButton {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

button#selectAllButton:hover,
button#deselectAllButton:hover,
button#openAllButton:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.toolbar-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.status {
  color: var(--muted);
  margin: 0 0 1rem;
  font-size: 0.95rem;
}

.sites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.75rem;
}

.site-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  box-shadow: var(--shadow);
}

.site-card input {
  margin-top: 0.2rem;
}

.site-card a {
  color: var(--accent);
  text-decoration: none;
  word-break: break-word;
}

.site-card a:hover {
  text-decoration: underline;
}

.site-card input:disabled + a {
  color: var(--muted);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  color: var(--muted);
  box-shadow: var(--shadow);
}

.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;
}