:root {
  --text: #1d2125;
  --muted: #5b6470;
  --line: #d6dbe1;
  --accent: #1f5fbf;
  --danger: #b3261e;
  --background: #ffffff;
  --panel: #f5f7fa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6e9ed;
    --muted: #a3acb8;
    --line: #3a4049;
    --accent: #7aa7ff;
    --danger: #ff8a80;
    --background: #15181c;
    --panel: #1e2228;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font: 16px/1.5 system-ui, sans-serif;
  color: var(--text);
  background: var(--background);
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.top h1 {
  margin: 0;
  font-size: 1.25rem;
}

nav {
  display: flex;
  gap: 8px;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  overflow-wrap: anywhere;
}

ul {
  padding-left: 20px;
}

li {
  margin: 4px 0;
}

form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
  padding: 12px;
  margin: 8px 0 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
  color: var(--muted);
}

input {
  min-width: 240px;
  padding: 6px 8px;
  font: inherit;
  color: var(--text);
  background: var(--background);
  border: 1px solid var(--line);
  border-radius: 4px;
}

button {
  padding: 6px 12px;
  font: inherit;
  color: #ffffff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  cursor: pointer;
}

button.secondary {
  color: var(--accent);
  background: transparent;
}

button.danger {
  background: var(--danger);
  border-color: var(--danger);
}

button.link {
  padding: 0;
  color: var(--accent);
  background: none;
  border: none;
  text-decoration: underline;
}

.error {
  padding: 8px 12px;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: 4px;
}

.notice {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
}

[hidden] {
  display: none !important;
}