:root {
  color-scheme: light;
  --canvas: #f5f8fd;
  --surface: #fff;
  --surface-muted: #f0f4fa;
  --text: #17212f;
  --muted: #48576a;
  --line: #dce5f0;
  --primary: #0b57d0;
  --primary-text: #fff;
  --selected: #d3e3fd;
  --selected-text: #102d61;
  --compose: #c2e7ff;
  --compose-text: #073452;
  --danger: #a52a3d;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--canvas);
  color: var(--text);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #141c26;
  --surface: #1d2836;
  --surface-muted: #273548;
  --text: #eff5ff;
  --muted: #b7c5d8;
  --line: #36465a;
  --primary: #adc9ff;
  --primary-text: #062a59;
  --selected: #314e7d;
  --selected-text: #ebf2ff;
  --compose: #254d70;
  --compose-text: #dcefff;
  --danger: #ffa3b2;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 260px; }
[hidden] { display: none !important; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; border: 0; }
button:disabled { cursor: default; opacity: .6; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
h1, h2, p { margin: 0; }
.loading, .login-page { min-height: 100dvh; display: grid; place-items: center; padding: 24px; }
.loading { color: var(--muted); }
.login-card {
  width: min(100%, 440px);
  padding: clamp(26px, 6vw, 48px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 1.25rem; letter-spacing: -.035em; }
.brand img { padding: 4px; background: #fff; border-radius: 9px; object-fit: contain; }
.login-card h1 { font-size: 2rem; margin: 25px 0 21px; font-weight: 650; letter-spacing: -.04em; }
label { display: grid; gap: 8px; font-weight: 550; font-size: .9rem; }
input, textarea, select, .compose-body {
  width: 100%; border: 1px solid var(--line); border-radius: 10px;
  padding: 11px 12px; background: var(--surface); color: var(--text);
}
textarea { resize: vertical; min-height: 110px; }
form label + label, .error { margin-top: 16px; }
.error { color: var(--danger); font-size: .92rem; }
.primary {
  padding: 11px 24px;
  background: var(--primary); color: var(--primary-text);
  border-radius: 24px; font-weight: 630;
}
.login-card .primary { margin-top: 21px; width: 100%; }
.alternate-signin { width: 100%; margin-top: 9px; }
.signin-digits {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: clamp(5px, 2vw, 10px); min-width: 0; padding: 0; margin: 0; border: 0;
}
.signin-digits input {
  min-width: 0; height: 48px; padding: 0; text-align: center;
  font-size: 1.25rem; font-weight: 650; font-variant-numeric: tabular-nums;
}
.signin-verification-actions { display: flex; flex-wrap: wrap; justify-content: space-between; margin-top: 13px; }
.quiet { padding: 8px 12px; background: transparent; color: var(--primary); border-radius: 18px; font-size: .88rem; font-weight: 570; }
.quiet:hover:not(:disabled) { background: var(--surface-muted); }
.workspace { min-height: 100dvh; padding: 0 clamp(8px, 1.6vw, 24px) 14px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  min-height: 64px; padding-inline: 8px;
}
.topbar > .brand { min-width: 148px; }
.search { display: flex; width: min(660px, 100%); min-width: 150px; background: var(--surface-muted); border-radius: 28px; align-items: center; padding-inline: 6px; }
.search input { background: transparent; border: 0; border-radius: 28px; min-width: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.account { min-width: 0; display: flex; gap: 5px; align-items: center; color: var(--muted); font-size: .86rem; }
.account span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account button { flex-shrink: 0; }
.theme-select { width: auto; flex: none; padding: 5px 6px; border-radius: 15px; font-size: .8rem; }
.mailbox-scope { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: 0 4px 8px; padding: 8px 14px; background: var(--selected); color: var(--selected-text); border-radius: 14px; }
.workspace-body { display: grid; grid-template-columns: 152px minmax(230px, 1fr) minmax(260px, 1.4fr); gap: 10px; }
.sidebar { display: flex; flex-direction: column; gap: 12px; padding: 10px 6px; }
.sidebar button { display: flex; align-items: center; gap: 9px; font-size: .92rem; text-align: left; }
.sidebar svg { flex: 0 0 19px; width: 19px; height: 19px; }
.sidebar nav { display: grid; gap: 2px; }
.sidebar nav button { min-width: 0; width: 100%; justify-content: space-between; white-space: nowrap; }
.sidebar nav button span:first-child { overflow: hidden; text-overflow: ellipsis; }
.folder-controls { display: flex; flex-wrap: wrap; }
.unread-count { font-size: .8em; font-variant-numeric: tabular-nums; }
.compose { padding: 14px 15px; border-radius: 15px; background: var(--compose); color: var(--compose-text); font-weight: 640; }
.compose:hover, .primary:hover { filter: brightness(.94); }
.nav-current, .nav-folder { padding: 10px 15px; border-radius: 20px; }
.nav-current { background: var(--selected); color: var(--selected-text); font-weight: 620; }
.nav-folder { background: transparent; }
.nav-folder:hover { background: var(--surface-muted); }
.inbox-pane, .reader { background: var(--surface); border-radius: 20px; min-height: calc(100dvh - 78px); min-width: 0; overflow: hidden; }
.pane-heading { display: flex; justify-content: space-between; align-items: center; min-height: 61px; gap: 12px; padding: 10px 15px; border-bottom: 1px solid var(--line); }
.pane-heading h1 { font-size: 1.1rem; font-weight: 650; }
.actions { display: flex; align-items: center; gap: 3px; flex-wrap: wrap; }
.filters { display: grid; gap: 8px; padding: 12px; background: var(--surface-muted); }
.filters label { margin-top: 0; }
.check { display: flex; gap: 8px; align-items: center; font-size: .87rem; }
input[type="checkbox"] { width: 16px; height: 16px; flex: none; margin: 0; accent-color: var(--primary); }
.bulk-toolbar { display: flex; flex-wrap: wrap; gap: 5px 10px; min-height: 42px; padding: 5px 12px; align-items: center; border-bottom: 1px solid var(--line); }
.pane-status { padding: 10px 15px; color: var(--muted); font-size: .87rem; }
.message-list { margin: 0; padding: 0; list-style: none; }
.message-list li { border-bottom: 1px solid var(--line); }
.message-item { display: grid; grid-template-columns: 36px minmax(0, 1fr); align-items: center; }
.message-item input { justify-self: end; }
.message-row { width: 100%; padding: 12px 15px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; text-align: left; background: transparent; color: inherit; text-decoration: none; }
.message-row:not(.unread) { background: var(--canvas); }
.message-row.unread .sender { color: var(--text); font-weight: 650; }
.message-row:hover { background: var(--surface-muted); }
.message-row[aria-current="true"] { background: var(--selected); color: var(--selected-text); }
.message-row .sender, .message-row .subject { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.message-row .sender { font-size: .82rem; color: var(--muted); }
.message-row .subject { grid-column: 1 / -1; font-weight: 600; }
.message-row time, .message-meta time { color: var(--muted); font-size: .8rem; }
.empty { padding: 22px 16px; color: var(--muted); font-size: .92rem; }
.reader-empty { min-height: 60dvh; display: grid; place-items: center; text-align: center; }
.reader article { padding: clamp(18px, 3vw, 34px); }
.reader h2 { font-size: 1.45rem; line-height: 1.3; font-weight: 650; overflow-wrap: anywhere; }
.message-meta { margin-top: 16px; display: flex; align-items: baseline; justify-content: space-between; gap: 8px; overflow-wrap: anywhere; }
.message-meta time { flex-shrink: 0; }
.reader-actions { margin: 14px 0 4px; }
.message-text { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.6; padding-block: 24px; }
.message-html { display: block; margin-top: 15px; width: 100%; height: 26rem; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.attachments { margin: 12px 0 0; padding: 0; display: flex; gap: 8px; flex-wrap: wrap; list-style: none; }
.attachments a { margin: 0; display: block; border: 1px solid var(--line); background: var(--surface-muted); border-radius: 14px; padding: 7px 11px; overflow-wrap: anywhere; }
.original { display: inline-block; margin-top: 8px; color: var(--primary); font-size: .88rem; }
.back { margin-bottom: 14px; }
.pagination { display: flex; justify-content: space-between; padding: 10px; }
dialog {
  width: min(540px, calc(100vw - 30px)); max-height: calc(100dvh - 30px); padding: 24px;
  border: 1px solid var(--line); border-radius: 20px; color: var(--text); background: var(--surface);
}
dialog::backdrop { background: rgb(8 19 37 / 40%); }
.compose-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.compose-heading h2 { font-size: 1.18rem; font-weight: 650; }
.compose-footer { margin-top: 18px; }
.compose-body { min-height: 145px; max-height: 36vh; overflow-y: auto; margin-top: 8px; white-space: pre-wrap; overflow-wrap: anywhere; }
.compose-body img { max-width: 100%; vertical-align: middle; }
.compose-projection { position: absolute; top: 0; left: -10000px; pointer-events: none; }
.view-switch { margin-top: 5px; }
.view-switch [aria-pressed="true"] { background: var(--selected); color: var(--selected-text); }
.compose-source, .compose-preview { margin-top: 8px; height: 145px; margin-bottom: 8px; }
.compose-source { font-family: ui-monospace, monospace; font-size: .85rem; }
#attachment-limit { margin-top: 6px; }
.recipient-options { margin-top: 10px; margin-bottom: 12px; }
.recipient-options summary { width: max-content; cursor: pointer; color: var(--primary); font-size: .86rem; margin-bottom: 8px; }
.recipient-shell { border: 1px solid var(--line); border-radius: 10px; display: flex; flex-wrap: wrap; gap: 4px; padding: 5px 8px; margin: 7px 0; }
.recipient-shell:focus-within { border-color: var(--primary); }
.recipient-shell input { border: 0; padding: 6px 4px; min-width: 125px; flex: 1; outline: 0; }
.recipient-chips { display: contents; }
.recipient-chip { display: flex; align-items: center; border-radius: 16px; background: var(--selected); color: var(--selected-text); max-width: 100%; font-size: .86rem; padding-inline-start: 8px; }
.recipient-chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recipient-chip button { border-radius: 100%; background: transparent; padding: 4px 7px; font-size: 1rem; }
.recipient-chip button:hover { background: var(--surface-muted); }
.recipient-suggestions { flex-basis: 100%; padding-top: 3px; border-top: 1px solid var(--line); }
.recipient-suggestions button { display: block; width: 100%; text-align: start; padding: 7px 8px; border-radius: 8px; background: transparent; overflow-wrap: anywhere; }
.recipient-suggestions button:hover, .recipient-suggestions button[aria-selected="true"] { background: var(--selected); color: var(--selected-text); }
#admin-bootstrap-values { white-space: pre-wrap; overflow-wrap: anywhere; user-select: all; }
.formatting { margin-bottom: 8px; }
.subtle { color: var(--muted); font-size: .87rem; overflow-wrap: anywhere; }
.danger { color: var(--danger); }
.settings-section + .settings-section { margin-top: 20px; }
.settings-section h3, .settings-form h3 { font-size: 1rem; margin-bottom: 8px; }
.settings-list { list-style: none; padding: 0; margin: 5px 0 0; }
.settings-list li { border-bottom: 1px solid var(--line); padding: 9px 0; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; align-items: start; }
.settings-list li > div:first-child { overflow-wrap: anywhere; }
.settings-form { display: grid; gap: 8px; margin-top: 10px; padding: 14px; border-radius: 14px; background: var(--surface-muted); }
.settings-form label { margin-top: 0; }
.settings-form > button { justify-self: start; }
.settings-form code, #recovery-codes { white-space: pre-wrap; overflow-wrap: anywhere; user-select: all; }
.totp-qr { width: min(220px, 100%); height: auto; border-radius: 8px; }
.settings-form fieldset { border: 1px solid var(--line); min-width: 0; border-radius: 10px; padding: 8px; margin: 0; }
.rule-group { border-left: 2px solid var(--line); padding: 4px 0 4px 8px; margin-top: 4px; }
.rule-group > .actions select { width: auto; }
.rule-condition { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; padding-block: 4px; }
.rule-condition input, .rule-condition select { width: auto; max-width: 100%; flex: 1 1 118px; min-width: 0; }
.admin-status { display: grid; gap: 4px; }
#admin-status { margin-block: 12px; }
#admin-dialog { width: min(740px, calc(100vw - 24px)); }
.admin-tabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--line); padding-bottom: 10px; margin-bottom: 16px; }
.admin-tabs [aria-selected="true"] { background: var(--selected); color: var(--selected-text); }
.admin-toolbar, .admin-search, .admin-pagination { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.admin-toolbar { justify-content: space-between; margin-bottom: 12px; }
.admin-search { flex: 1 1 220px; flex-wrap: nowrap; }
.admin-search input { min-width: 0; }
.admin-toolbar > button { white-space: nowrap; }
#admin-list { max-height: min(55dvh, 520px); overflow-y: auto; overscroll-behavior: contain; }
.settings-list .admin-account-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 8px 12px; }
.admin-account-row strong { display: block; margin-bottom: 3px; }
.admin-account-actions { justify-self: end; }
.admin-account-actions > summary { cursor: pointer; text-align: end; }
.admin-account-actions > summary:focus-visible, .admin-certificate > summary:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }
.admin-account-actions > .actions { display: grid; margin-top: 4px; }
.admin-account-actions button { text-align: end; }
.admin-pagination { justify-content: space-between; margin-top: 10px; }
.admin-certificate { width: 100%; }
.admin-certificate > summary { cursor: pointer; padding-block: 5px; overflow-wrap: anywhere; }
.admin-certificate > .subtle { margin-top: 4px; }
.admin-certificate > .actions { margin-top: 8px; }
#admin-feedback { margin-top: 12px; }
.delivery {
  position: fixed; z-index: 1; right: 18px; bottom: 18px; width: min(400px, calc(100vw - 36px));
  padding: 14px 16px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 15px; box-shadow: 0 4px 18px rgb(0 0 0 / 13%);
}
.delivery p { margin-top: 5px; color: var(--muted); font-size: .88rem; }
.delivery-actions { display: flex; justify-content: end; margin-top: 4px; }
@media (max-width: 810px) {
  .workspace-body { grid-template-columns: 122px minmax(185px, 1fr) minmax(220px, 1.15fr); gap: 6px; }
  .sidebar { padding-inline: 0; }
  .sidebar button { padding-inline: 11px; }
  .account span { display: none; }
}
@media (max-width: 620px) {
  .topbar { flex-wrap: wrap; gap: 4px; padding-block: 8px; }
  .topbar > .brand { min-width: 0; }
  .topbar .search { order: 3; width: 100%; }
  .account .quiet { padding-inline: 8px; }
  .account { flex-wrap: wrap; justify-content: start; }
  .workspace-body { display: flex; flex-direction: column; }
  .sidebar { padding: 2px 6px; gap: 5px; align-items: start; }
  .sidebar nav { display: flex; width: 100%; max-width: 100%; overflow-x: auto; padding-block: 3px; }
  .sidebar nav button { width: auto; flex: none; }
  .sidebar .compose { padding-block: 9px; }
  .reader { display: none; }
  .has-reading .inbox-pane, .has-reading .sidebar { display: none; }
  .has-reading .reader, .back { display: block; }
  .inbox-pane { min-height: calc(100dvh - 126px); }
}
@media (max-width: 390px) {
  .admin-tabs { gap: 2px; }
  .admin-tabs button { padding-inline: 8px; }
  .admin-account-actions button { max-width: 9rem; }
}