:root {
  color-scheme: light;
  --bg: #f6f7f5;
  --panel: #ffffff;
  --ink: #1d2730;
  --muted: #65717d;
  --border: #d9ded8;
  --accent: #0f6f6b;
  --accent-dark: #0b5653;
  --good: #1d7f4f;
  --warn: #a65f00;
  --bad: #b42318;
  --soft-good: #e8f5ee;
  --soft-warn: #fff4df;
  --soft-bad: #fdebea;
  --row: #fbfcfb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  align-items: center;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 20px;
  min-height: 64px;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 2;
}

.brand {
  color: var(--ink);
  font-size: 18px;
  font-weight: 750;
  white-space: nowrap;
}

.nav {
  display: flex;
  flex: 1;
  gap: 4px;
  overflow-x: auto;
}

.nav a {
  border-radius: 6px;
  color: var(--muted);
  display: inline-flex;
  font-weight: 650;
  padding: 8px 10px;
  text-decoration: none;
  white-space: nowrap;
}

.nav a.active,
.nav a:hover {
  background: #eef4f3;
  color: var(--accent-dark);
}

.logout {
  margin: 0;
}

.page {
  margin: 0 auto;
  max-width: 1180px;
  padding: 28px;
}

.page-header {
  align-items: flex-end;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 20px;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 20px;
}

h3 {
  font-size: 16px;
}

.muted {
  color: var(--muted);
}

.stack {
  display: grid;
  gap: 16px;
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.panel-head,
.panel-body {
  padding: 18px;
}

.panel-head {
  border-bottom: 1px solid var(--border);
}

.stat {
  padding: 18px;
}

.stat strong {
  display: block;
  font-size: 30px;
  line-height: 1;
}

.stat span {
  color: var(--muted);
  display: block;
  margin-top: 6px;
}

.toolbar {
  align-items: end;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

form {
  margin: 0;
}

.form-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.field {
  display: grid;
  gap: 6px;
}

label {
  color: #33414d;
  font-weight: 700;
}

input,
select,
textarea {
  background: #fff;
  border: 1px solid #cbd3ce;
  border-radius: 6px;
  color: var(--ink);
  font: inherit;
  min-height: 40px;
  padding: 9px 10px;
  width: 100%;
}

textarea {
  min-height: 220px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 111, 107, 0.14);
  outline: none;
}

.button,
button {
  align-items: center;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 750;
  justify-content: center;
  min-height: 40px;
  padding: 8px 13px;
  text-decoration: none;
  white-space: nowrap;
}

.button:hover,
button:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  text-decoration: none;
}

.button.secondary,
button.secondary {
  background: #fff;
  border-color: #b8c4bf;
  color: var(--ink);
}

.button.secondary:hover,
button.secondary:hover {
  background: #eef4f3;
}

.button.danger,
button.danger {
  background: #fff;
  border-color: #efb3ae;
  color: var(--bad);
}

.button.danger:hover,
button.danger:hover {
  background: var(--soft-bad);
}

.table-wrap {
  overflow-x: auto;
}

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

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f0f3ef;
  color: #384752;
  font-size: 13px;
  letter-spacing: 0;
  text-transform: uppercase;
}

tr.unread td {
  background: var(--row);
  font-weight: 700;
}

.pill {
  border-radius: 999px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  padding: 6px 8px;
  text-transform: uppercase;
  white-space: nowrap;
}

.pill.pass,
.pill.sent {
  background: var(--soft-good);
  color: var(--good);
}

.pill.warn,
.pill.pending,
.pill.queued,
.pill.sending {
  background: var(--soft-warn);
  color: var(--warn);
}

.pill.fail,
.pill.failed {
  background: var(--soft-bad);
  color: var(--bad);
}

.notice {
  border-radius: 8px;
  padding: 12px 14px;
}

.notice.info {
  background: #eaf4f6;
  border: 1px solid #b8dce2;
}

.notice.warn {
  background: var(--soft-warn);
  border: 1px solid #f3cf8c;
}

.notice.danger {
  background: var(--soft-bad);
  border: 1px solid #efb3ae;
}

.dns-value,
code,
pre {
  background: #f0f3ef;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: #24313a;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

code {
  padding: 2px 5px;
}

.dns-value {
  display: block;
  max-width: 560px;
  overflow-wrap: anywhere;
  padding: 8px;
}

pre {
  margin: 0;
  overflow-x: auto;
  padding: 14px;
  white-space: pre-wrap;
}

.message-body {
  white-space: pre-wrap;
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 420px;
  padding: 24px;
  width: 100%;
}

.login-panel h1 {
  margin-bottom: 6px;
}

.empty {
  color: var(--muted);
  padding: 28px;
  text-align: center;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button.mini,
button.mini {
  font-size: 12px;
  min-height: 28px;
  padding: 4px 8px;
}

.compact-toolbar {
  align-items: end;
  margin-top: 12px;
}

.mailbox-field {
  min-width: 160px;
}

.mailbox-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mailbox-chip {
  align-items: center;
  display: inline-flex;
  gap: 6px;
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 14px 18px;
  }

  .nav {
    width: 100%;
  }

  .page {
    padding: 18px;
  }

  .page-header {
    align-items: stretch;
    flex-direction: column;
  }

  th,
  td {
    padding: 10px;
  }
}