:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f7f8;
  color: #1b2528;
}

body {
  margin: 0;
}

a {
  color: #0a6680;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  align-items: center;
  background: #ffffff;
  border-bottom: 1px solid #dce4e7;
  display: flex;
  justify-content: space-between;
  min-height: 56px;
  padding: 0 24px;
}

.brand {
  color: #172326;
  font-weight: 700;
}

.topbar nav {
  align-items: center;
  display: flex;
  gap: 18px;
}

.topbar form {
  margin: 0;
}

main {
  margin: 24px auto 48px;
  max-width: 1180px;
  padding: 0 20px;
}

.panel,
.login-panel {
  background: #ffffff;
  border: 1px solid #dce4e7;
  border-radius: 8px;
  margin-bottom: 18px;
  padding: 20px;
}

.login-panel {
  margin: 96px auto 0;
  max-width: 380px;
}

h1 {
  font-size: 24px;
  line-height: 1.2;
  margin: 0 0 16px;
}

p {
  color: #647175;
  margin: 4px 0 0;
}

label {
  color: #465458;
  display: flex;
  flex-direction: column;
  font-size: 13px;
  gap: 6px;
}

input,
select,
button {
  border: 1px solid #c8d3d7;
  border-radius: 6px;
  box-sizing: border-box;
  font: inherit;
  min-height: 38px;
  padding: 8px 10px;
}

button {
  background: #ffffff;
  cursor: pointer;
}

button.primary {
  background: #0a6680;
  border-color: #0a6680;
  color: #ffffff;
}

.login-panel form {
  display: grid;
  gap: 14px;
}

.batch-form,
.search-form {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(5, minmax(120px, 1fr)) auto;
}

.batch-form .wide {
  grid-column: span 2;
}

.search-form {
  grid-template-columns: 2fr 1fr auto;
}

.poll-status {
  color: #6d7b80;
  font-size: 12px;
  margin-top: 12px;
}

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

th,
td {
  border-bottom: 1px solid #e4ebee;
  font-size: 14px;
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: #5d6d72;
  font-size: 12px;
  text-transform: uppercase;
}

.col-date {
  width: 190px;
}

.col-from {
  width: 220px;
}

.col-recipient {
  width: 220px;
}

.message-cell {
  display: grid;
  gap: 8px;
  min-width: 280px;
}

.message-subject {
  font-weight: 700;
}

.message-preview {
  color: #374448;
  line-height: 1.45;
  max-width: 680px;
  white-space: pre-wrap;
}

.code-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.code-token {
  background: #fff4cc;
  border: 1px solid #e6c967;
  border-radius: 6px;
  color: #5f4300;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
  padding: 4px 8px;
}

.status {
  border-radius: 999px;
  display: inline-block;
  font-size: 12px;
  padding: 3px 8px;
}

.status.on {
  background: #dff4ea;
  color: #17633c;
}

.status.off {
  background: #f3e3e1;
  color: #8a2f25;
}

.flash {
  border-radius: 6px;
  margin-bottom: 12px;
  padding: 10px 12px;
}

.flash.info {
  background: #e6f3f7;
  color: #174f60;
}

.flash.error {
  background: #f8e1dc;
  color: #893022;
}

.empty {
  color: #7b878b;
  text-align: center;
}

.headers {
  display: grid;
  gap: 8px 16px;
  grid-template-columns: 150px 1fr;
}

.headers dt {
  color: #607176;
  font-weight: 700;
}

.headers dd {
  margin: 0;
}

.body,
.headers-raw {
  overflow: auto;
  white-space: pre-wrap;
}

@media (max-width: 820px) {
  .topbar,
  .topbar nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 14px;
  }

  .batch-form,
  .search-form {
    grid-template-columns: 1fr;
  }

  .batch-form .wide {
    grid-column: auto;
  }
}