:root {
  color-scheme: light;
  --bg: #f3f0e8;
  --ink: #1c2430;
  --muted: #5c6770;
  --card: #fffdf8;
  --line: #e0d7c8;
  --navy: #1b3348;
  --navy-press: #142636;
  --on-navy: #f4f0e6;
  --ok-bg: #e6f3ec;
  --ok-ink: #0e5a38;
  --ok-line: #b7dcc8;
  --err-bg: #f8ebe7;
  --err-ink: #8a2b22;
  --err-line: #e4c2ba;
  --busy-bg: #eef2f6;
  --busy-ink: #1b3348;
  --busy-line: #d3dde6;
  --warn-bg: #f8f1dc;
  --warn-ink: #6a5010;
  --warn-line: #e4d3a4;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #141b24;
    --ink: #f3efe6;
    --muted: #b7c0c8;
    --card: #1c2632;
    --line: #314052;
    --navy: #e4d3b0;
    --navy-press: #f3e6c8;
    --on-navy: #1b3348;
    --ok-bg: #163528;
    --ok-ink: #d7f3e4;
    --ok-line: #2f6b4f;
    --err-bg: #3a221e;
    --err-ink: #f6d2cb;
    --err-line: #8a463c;
    --busy-bg: #243140;
    --busy-ink: #f3efe6;
    --busy-line: #3d5166;
    --warn-bg: #3a311c;
    --warn-ink: #f3e2b0;
    --warn-line: #8a7040;
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.45 "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body.site main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

body.pane main {
  padding: 16px 16px 28px;
}

.boot {
  margin: 0;
  padding: 16px;
  color: var(--muted);
}

.banner,
.status,
.card,
.lede,
.fine,
.hint {
  overflow-wrap: anywhere;
}

.banner {
  margin: 0 0 14px;
  padding: 10px 12px;
  border: 1px solid var(--warn-line);
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn-ink);
}

.masthead {
  display: flex;
  gap: 12px;
  align-items: center;
}

.mark { flex: 0 0 auto; border-radius: 8px; }

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 1px 0 0;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h2 {
  margin: 28px 0 8px;
  font-size: 18px;
}

.lede {
  margin: 14px 0;
  color: var(--ink);
}

.card {
  margin: 0 0 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
}

.card-label,
.field label {
  display: block;
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 600;
}

.subject {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.from-line {
  margin: 4px 0 0;
  color: var(--muted);
}

.send,
.secondary {
  font: inherit;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
}

.send {
  width: 100%;
  min-height: 44px;
  border: 0;
  background: var(--navy);
  color: var(--on-navy);
}

.send:hover:not(:disabled),
.secondary:hover:not(:disabled) {
  background: var(--navy-press);
  color: var(--on-navy);
}

.send:disabled,
.secondary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.status {
  margin: 12px 0 0;
  max-height: 180px;
  overflow: auto;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  white-space: pre-wrap;
}

.status-idle {
  padding-left: 0;
  padding-right: 0;
  color: var(--muted);
}

.status-busy {
  border-color: var(--busy-line);
  background: var(--busy-bg);
  color: var(--busy-ink);
}

.status-ok {
  border-color: var(--ok-line);
  background: var(--ok-bg);
  color: var(--ok-ink);
}

.status-err {
  border-color: var(--err-line);
  background: var(--err-bg);
  color: var(--err-ink);
}

.settings {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.advanced { margin-top: 14px; }

summary {
  cursor: pointer;
  font-weight: 600;
}

.hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.field { margin-top: 12px; }

input {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
}

.key-row {
  display: flex;
  gap: 8px;
}

.key-row input { flex: 1; }

.secondary {
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
}

.actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.actions button { flex: 1; }

code {
  font-family: Consolas, "SFMono-Regular", ui-monospace, monospace;
  font-size: 0.92em;
}

.fine {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 12px;
}

a { color: var(--navy); }

:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

ol.steps { padding-left: 1.2rem; }
ol.steps li { margin: 0.45rem 0; }