[hidden] { display: none !important; }
:root {
  --bg: #faf8f8; --surface: #ffffff; --text: #2b2b2b; --muted: #6b6b6b; --line: #e3e3e3;
  --primary: #284b63; --primary-text: #ffffff; --accent: #84a59d; --danger: #a33b35; --unread: #eef4f8;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161618; --surface: #1f1f22; --text: #ebebec; --muted: #a0a0a4; --line: #393639;
    --primary: #7b97aa; --primary-text: #161618; --accent: #84a59d; --danger: #e07a73; --unread: #25303a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 "PT Sans", system-ui, sans-serif; }
button, input, select, textarea { font: inherit; color: inherit; }
.top { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { font-weight: 700; font-size: 1.25rem; color: var(--primary); text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px; }
.nav button { border: 0; background: none; padding: 6px 12px; border-radius: 8px; cursor: pointer; }
.nav button.active { background: var(--primary); color: var(--primary-text); }
.who { margin-left: auto; color: var(--muted); }
.role { font-size: .85em; border: 1px solid var(--line); border-radius: 6px; padding: 0 6px; }
.badge { background: var(--danger); color: #fff; border-radius: 10px; padding: 0 7px; font-size: .8em; }
main { max-width: 1100px; margin: 20px auto; padding: 0 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.narrow { max-width: 460px; margin: 0 auto; }
h2 { margin: 0 0 12px; font-size: 1.3rem; } h3 { margin: 22px 0 8px; font-size: 1.05rem; }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; }
.tab { flex: 1; border: 1px solid var(--line); background: none; padding: 8px; border-radius: 8px; cursor: pointer; }
.tab.active { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.form { display: grid; gap: 12px; }
.form label { display: grid; gap: 4px; font-size: .95rem; color: var(--muted); }
.form input, .form select, .form textarea { padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); }
.form textarea { resize: vertical; }
.btn { border: 1px solid var(--line); background: var(--bg); padding: 8px 16px; border-radius: 8px; cursor: pointer; }
.btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn.ghost { background: none; }
.btn.full { width: 100%; }
.btn.small { padding: 3px 10px; font-size: .9rem; }
.hint, .empty { color: var(--muted); font-size: .92rem; }
.msg { min-height: 1.4em; color: var(--danger); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; }
.mail-layout { display: grid; grid-template-columns: 320px 1fr; gap: 16px; align-items: start; }
.folders { display: grid; gap: 4px; margin: 12px 0; }
.folder { text-align: left; border: 0; background: none; padding: 6px 10px; border-radius: 8px; cursor: pointer; }
.folder.active { background: var(--unread); font-weight: 700; }
.msg-list { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow-y: auto; }
.msg-item { display: grid; gap: 1px; padding: 8px 10px; border-top: 1px solid var(--line); cursor: pointer; }
.msg-item span { color: var(--muted); font-size: .92rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-item time { color: var(--muted); font-size: .8rem; }
.msg-item.unread { background: var(--unread); }
.msg-item.unread b::before { content: "● "; color: var(--danger); }
.msg-head p { color: var(--muted); margin: 0 0 12px; }
.msg-text { white-space: pre-wrap; margin-bottom: 14px; }
.msg-files { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.msg-files img { max-width: 260px; max-height: 260px; border-radius: 8px; border: 1px solid var(--line); }
.prog { border-top: 1px solid var(--line); padding: 8px 0; }
.prog summary { cursor: pointer; display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; }
.prog summary a { color: var(--primary); }
.prog time { color: var(--muted); font-size: .85rem; margin-left: auto; }
.prog pre { white-space: pre-wrap; margin: 4px 0; font: inherit; background: var(--bg); padding: 6px 10px; border-radius: 8px; }
.tag { font-size: .78rem; border-radius: 6px; padding: 1px 7px; background: var(--unread); }
.tag.trainer { background: var(--accent); color: #fff; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 7px 10px; border-top: 1px solid var(--line); }
td select { padding: 3px 6px; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); }
@media (max-width: 760px) {
  .mail-layout { grid-template-columns: 1fr; }
  .who { margin-left: 0; width: 100%; }
}

.form small { font-size: .82rem; color: var(--muted); }
.who-am-i { display: flex; gap: 18px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; margin: 0; }
.who-am-i legend { padding: 0 4px; color: var(--muted); font-size: .95rem; }
.who-am-i label { display: flex; gap: 6px; align-items: center; color: var(--text); }
tr.request td { background: var(--unread); }
.howto { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 12px; font-size: .95rem; }
.howto summary { cursor: pointer; font-weight: 700; }
.howto ul { padding-left: 1.2em; }
.crumb { color: var(--muted); }
.crumb::before { content: "/ "; }
#fatal { margin-bottom: 14px; }
.note { margin-bottom: 14px; }