:root {
  --nav-h: 51px;
  --bg: #fbfbfa; --surface: #fff; --text: #1d1d1f; --muted: #6e6e73;
  --line: #e6e6e3; --accent: #2f6fde; --danger: #c6372f; --unread: #2f6fde;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161617; --surface: #1f1f21; --text: #ececee; --muted: #9a9aa0;
    --line: #2e2e31; --accent: #6b9bff; --danger: #ff6b61; --unread: #6b9bff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }

nav { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 1; }
nav div { max-width: 760px; margin: 0 auto; padding: 0 16px; display: flex; gap: 28px; overflow-x: auto; }
nav a { padding: 14px 0 12px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; }
nav a:hover { color: var(--text); }
nav a.on { color: var(--text); border-bottom-color: var(--text); font-weight: 600; }
/* Bolding the current tab mustn't shift the others: each label carries an
   invisible bold copy of itself, so it's always as wide as it gets. */
nav .label { display: inline-flex; flex-direction: column; }
nav .label::after { content: attr(data-label); font-weight: 600; height: 0; overflow: hidden;
  visibility: hidden; user-select: none; pointer-events: none; }
/* Dots sit just past the label without taking up room, so one appearing or
   clearing doesn't shift the tabs either. */
nav a { position: relative; }
nav .dot { position: absolute; right: -10px; top: 22px; width: 6px; height: 6px; border-radius: 50%;
  background: var(--unread); }

h1 { font-size: 22px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted); margin: 32px 0 0; padding-bottom: 8px; }
.sub { color: var(--muted); margin: 0 0 24px; }
.sub a { color: var(--accent); }
/* The tab names the page, so lists start right at the top. */
main > h2:first-of-type { margin-top: 0; }
.tools { margin: 0 0 16px; text-align: right; font-size: 13px; }
.tools a { color: var(--accent); }
.empty { color: var(--muted); padding: 48px 0; text-align: center; }

/* Lists */
ul.list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
ul.list li { border-bottom: 1px solid var(--line); }
ul.list a.row { display: block; padding: 14px 0; }
ul.list a.row:hover .subject { color: var(--accent); }
.who { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.name { font-weight: 600; }
.addr, .when { color: var(--muted); font-size: 13px; }
.when { white-space: nowrap; }
.subject { margin: 3px 0 2px; }
.preview { color: var(--muted); font-size: 14px; margin: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.unread .name::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--unread); margin: 0 8px 1px 0; vertical-align: middle; }
.seen .name, .seen .subject { font-weight: 400; }

/* Compact list (Transactions) */
ul.compact a.row { display: grid; grid-template-columns: minmax(0, 11rem) minmax(0, 1fr) auto; gap: 14px; padding: 10px 0; }
ul.compact .name, ul.compact .subject { margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
ul.compact .name { font-weight: 500; }
@media (max-width: 560px) {
  ul.compact a.row { grid-template-columns: minmax(0, 1fr) auto; }
  ul.compact .subject { grid-column: 1 / -1; grid-row: 2; color: var(--muted); }
}

/* Messages (thread and News) */
article.msg { margin: 0 0 28px; }
article.msg header { margin-bottom: 10px; }
article.msg .subject a:hover { color: var(--accent); }
.news article.msg { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.news article.msg .subject { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; margin: 4px 0 0; }
iframe.mail { display: block; width: 100%; height: 240px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; }
.text { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--surface);
  border: 1px solid var(--line); border-radius: 10px; padding: 20px; margin: 0; font: inherit; }
.notice { font-size: 13px; color: var(--muted); margin: 0 0 8px; }
.notice a { color: var(--accent); }
.more { display: block; text-align: center; padding: 12px; margin-top: 8px;
  border: 1px solid var(--line); border-radius: 8px; color: var(--accent); }

/* Trashing and collapsing in News */
.headline { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.headline .actions { display: flex; gap: 6px; flex-shrink: 0; }
form.trash button, form.collapse button, form.reader button { color: var(--muted); padding: 3px 10px; }
form.collapse button:hover, form.reader button:hover { border-color: var(--accent); color: var(--accent); }
/* While you read an item, its header (with Collapse) stays under the nav. */
.news article.msg header { position: sticky; top: var(--nav-h); z-index: 1; background: var(--bg);
  padding: 10px 0 8px; margin: -10px 0 2px; }
.news article.msg { scroll-margin-top: var(--nav-h); }
.news article.collapsed { padding-bottom: 14px; margin-bottom: 14px; }
.news article.collapsed header { margin: 0; }
.news article.collapsed .subject { font-size: 15px; font-weight: 500; color: var(--muted); }
.news article.collapsed :is(iframe.mail, pre.text, .notice, details.sender) { display: none; }
form.trash button:hover { border-color: var(--danger); color: var(--danger); }
.undo-note { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 14px;
  padding: 14px 0 28px; margin: 0 0 28px; border-bottom: 1px solid var(--line); }
ul.list li.undo-note { padding: 14px 0; margin: 0; }

/* Archiving from People */
ul.list li[data-item] { display: flex; align-items: center; gap: 12px; }
ul.list li[data-item] a.row { flex: 1; min-width: 0; }
form.archive button { color: var(--muted); padding: 3px 10px; }
form.archive button:hover { border-color: var(--accent); color: var(--accent); }
@media (hover: hover) {
  /* With a mouse, it appears over the date on the row you point at (or tab
     to), so it takes no room the rest of the time. */
  ul.list li[data-item] { position: relative; }
  ul.list form.archive { position: absolute; right: 0; top: 12px; opacity: 0;
    padding-left: 12px; background: var(--bg); }
  ul.list li:hover form.archive, ul.list form.archive:focus-within { opacity: 1; }
}
.headline h1 { margin-bottom: 4px; }
.flash form { display: inline; margin-left: 8px; }

/* Moving a sender */
.flash { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 6px; padding: 10px 14px; margin: 0 0 24px; font-size: 14px; }
details.sender { margin-top: 4px; font-size: 13px; color: var(--muted); }
details.sender summary { cursor: pointer; width: fit-content; list-style: none; }
details.sender summary::-webkit-details-marker { display: none; }
details.sender summary::after { content: " ▾"; font-size: 10px; }
details.sender[open] summary::after { content: " ▴"; }
details.sender summary:hover { color: var(--accent); }
details.sender form { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 8px 0 4px; }
details.sender form span { flex-basis: 100%; }
button.current { border-color: var(--text); font-weight: 600; }
label.scope { flex-basis: 100%; display: flex; align-items: center; gap: 6px; margin-top: 2px; cursor: pointer; }
form.decide label.scope { font-size: 13px; color: var(--muted); }

/* Sign-ins strip */
aside.signins { border: 1px solid var(--accent); border-radius: 10px; padding: 12px 16px; margin: 0 0 28px;
  background: var(--surface); }
aside.signins h2 { margin: 0 0 6px; padding: 0; color: var(--accent); }
aside.signins ul { list-style: none; margin: 0; padding: 0; }
aside.signins a { display: grid; grid-template-columns: minmax(0, 10rem) minmax(0, 1fr) auto; gap: 12px; padding: 6px 0; }
aside.signins a:hover .subject { color: var(--accent); }
aside.signins .name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
aside.signins .subject { margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 560px) {
  aside.signins a { grid-template-columns: minmax(0, 1fr) auto; row-gap: 0; }
  aside.signins .subject { grid-column: 1 / -1; grid-row: 2; color: var(--muted); }
}

/* Writing */
nav a.write { margin-left: auto; color: var(--accent); }
nav a.write + form.signout { margin-left: 0; }
form.composer { display: flex; flex-direction: column; gap: 10px; }
form.composer .field { display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); }
form.composer .field span { width: 58px; flex-shrink: 0; color: var(--muted); font-size: 14px; }
form.composer .field input, form.composer .field select { flex: 1; min-width: 0; border: 0; background: none;
  color: var(--text); font: inherit; padding: 8px 0; outline: none; }
form.composer textarea { font: inherit; line-height: 1.5; color: var(--text); background: var(--surface);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; resize: vertical; min-height: 120px; }
form.composer textarea:focus, form.composer .field:focus-within { border-color: var(--accent); outline: none; }
form.composer .send { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
form.composer .check, form.composer .mode label { font-size: 14px; color: var(--muted); display: inline-flex; gap: 6px; align-items: center; }
form.composer .mode { display: flex; gap: 16px; }
form.composer .hint { margin-left: auto; font-size: 12px; color: var(--muted); }
@media (hover: none) { form.composer .hint { display: none; } }
form.composer .error { color: var(--danger); margin: 0; }
section.reply { margin-top: 12px; padding-top: 24px; border-top: 1px solid var(--line); }
.reply-actions { display: flex; gap: 8px; margin-top: 12px; padding-top: 24px; border-top: 1px solid var(--line); }
.reply-actions[hidden] { display: none; }
a.button { font-size: 14px; padding: 6px 16px; border-radius: 6px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text); }
a.button:hover { border-color: var(--accent); color: var(--accent); }
form.composer a.cancel { font-size: 14px; color: var(--muted); }
form.composer a.cancel:hover { color: var(--text); }

/* Signing in */
nav form.signout { margin-left: 18px; align-self: center; }
nav form.signout button { border: 0; background: none; color: var(--muted); padding: 0; font-size: 14px; }
nav form.signout button:hover { color: var(--text); }
main.auth { max-width: 420px; padding-top: 18vh; }
main.auth h1 { font-size: 26px; margin-bottom: 8px; }
main.auth .sub { margin-bottom: 20px; }
button.primary { font-size: 15px; padding: 9px 18px; background: var(--text); color: var(--bg); border-color: var(--text); }
button.primary:hover { color: var(--bg); opacity: .85; }
button.primary:disabled { opacity: .5; }
main.auth .hint { color: var(--muted); font-size: 13px; margin-top: 28px; }
main.auth .error { color: var(--danger); margin-top: 16px; }
code { white-space: nowrap; font: 13px ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--surface);
  border: 1px solid var(--line); border-radius: 4px; padding: 1px 4px; }

/* Screener */
.aside-link { margin-top: 28px; font-size: 14px; }
.aside-link a { color: var(--muted); }
.aside-link a:hover { color: var(--text); }
.back { margin: 0 0 12px; font-size: 14px; }
.back a { color: var(--muted); }
form.decide .let { font-size: 13px; color: var(--muted); align-self: center; margin-right: 2px; }
.screener li { padding: 16px 0; }
.screener .peek { margin-top: 10px; }
.peek-toggle { margin: 6px 0 0; font-size: 13px; }
.peek-toggle a { color: var(--muted); }
.peek-toggle a:hover { color: var(--accent); }
form.decide { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
button {
  font: inherit; font-size: 13px; padding: 5px 12px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
}
button:hover { border-color: var(--accent); color: var(--accent); }
button.out { margin-left: auto; }
button.out:hover { border-color: var(--danger); color: var(--danger); }
.count { color: var(--muted); font-size: 13px; }