:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #1d2330; --muted: #5b6475;
  --accent: #2456c7; --accent-text: #ffffff; --border: #d5d9e1;
  --error-bg: #fdecec; --error-text: #8a1c1c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171d; --panel: #1d2129; --text: #e6e9ef; --muted: #a2aab8;
    --accent: #7da2ff; --accent-text: #0d1117; --border: #343a46;
    --error-bg: #3a1d1d; --error-text: #ffb4b4;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; letter-spacing: 0.04em; }
.who { color: var(--muted); }
main { max-width: 34rem; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 8px 0 16px; }
a { color: var(--accent); }
label { display: block; font-weight: 600; margin-bottom: 4px; }
input {
  display: block; width: 100%; padding: 10px 12px; margin-bottom: 16px;
  font: inherit; color: inherit; background: var(--panel);
  border: 1px solid var(--border); border-radius: 6px;
}
input#code { font-size: 1.5rem; letter-spacing: 0.15em; }
button {
  font: inherit; font-weight: 600; padding: 10px 16px; min-height: 44px;
  color: var(--accent-text); background: var(--accent);
  border: 1px solid var(--accent); border-radius: 6px; cursor: pointer;
}
button.secondary { color: var(--accent); background: transparent; }
form.inline button { margin: 0 8px 8px 0; }
.error {
  padding: 10px 12px; border-radius: 6px;
  background: var(--error-bg); color: var(--error-text);
}
.small { font-size: 0.9rem; color: var(--muted); }

/* Signed-in pages */
:root { --danger: #b42318; --acting-bg: #fff4d6; --acting-border: #e3b341; --row-hover: #eef2fb; }
@media (prefers-color-scheme: dark) {
  :root { --danger: #ff8a80; --acting-bg: #3b3014; --acting-border: #9a7a1c; --row-hover: #262c38; }
}
[hidden] { display: none !important; }
header { gap: 12px; flex-wrap: wrap; }
.brand { color: inherit; text-decoration: none; }
nav { display: flex; gap: 16px; }
nav a { text-decoration: none; font-weight: 600; }
h2 { font-size: 1.15rem; margin: 28px 0 8px; }
.working-on {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 8px 16px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.working-on label { margin: 0; font-weight: 600; }
.working-on select { font: inherit; padding: 6px 8px; color: inherit; background: var(--bg);
  border: 1px solid var(--border); border-radius: 6px; }
.working-on.acting { background: var(--acting-bg); border-color: var(--acting-border); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.button {
  display: inline-flex; align-items: center; min-height: 44px; padding: 10px 16px;
  font-weight: 600; text-decoration: none; border-radius: 6px;
  color: var(--accent-text); background: var(--accent); border: 1px solid var(--accent);
}
.button.secondary { color: var(--accent); background: transparent; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.small-button { min-height: 32px; padding: 4px 10px; font-size: 0.9rem; }
.done { padding: 10px 12px; border-radius: 6px; background: var(--row-hover); }
.hint { font-size: 0.9rem; color: var(--muted); margin: 0 0 8px; }
.email { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em;
  overflow-wrap: anywhere; }
.email.big { font-size: 1.05rem; }
.tag { font-size: 0.75rem; font-weight: 600; padding: 2px 6px; border-radius: 4px;
  background: var(--border); color: var(--muted); vertical-align: middle; }
fieldset { border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px 12px; margin: 0 0 16px; }
legend { font-weight: 600; padding: 0 4px; }
label.check { display: flex; gap: 8px; align-items: baseline; font-weight: normal; margin: 6px 0; }
label.check input { width: auto; margin: 0; }
.suffix { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; margin-top: 8px; }
.suffix input { flex: 1 1 8rem; width: auto; margin: 0; }
.suffix span { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }
textarea { display: block; width: 100%; padding: 10px 12px; margin-bottom: 8px; font: inherit;
  color: inherit; background: var(--panel); border: 1px solid var(--border); border-radius: 6px;
  resize: vertical; }
input.filter { margin-bottom: 8px; }
.count { margin: 4px 0; }
ul.addresses, ul.outgoing { list-style: none; margin: 0; padding: 0; border: 1px solid var(--border);
  border-radius: 6px; background: var(--panel); }
ul.addresses li + li, ul.outgoing li + li { border-top: 1px solid var(--border); }
ul.addresses a, ul.addresses label.pick { display: block; padding: 10px 12px; color: inherit;
  text-decoration: none; font-weight: normal; margin: 0; cursor: pointer; }
ul.addresses a:hover, ul.addresses label.pick:hover { background: var(--row-hover); }
ul.addresses .key { display: block; font-weight: 600; }
ul.addresses .comments { display: block; font-size: 0.9rem; color: var(--muted); }
ul.addresses li.inactive .key { color: var(--muted); }
ul.picker { max-height: 45vh; overflow-y: auto; }
label.pick { position: relative; padding-left: 40px !important; }
label.pick input { position: absolute; left: 12px; top: 14px; width: auto; margin: 0; }
label.pick .email { display: block; }
label.pick:has(input:checked) { background: var(--row-hover); }
ul.outgoing li { padding: 10px 12px; display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; }
ul.outgoing .recipient { flex-basis: 100%; font-weight: 600; overflow-wrap: anywhere; }
.address-line { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chosen { padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); }
form.row { display: flex; gap: 8px; }
form.row input { margin: 0; }