:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #1c2230;
  --muted: #6b7280;
  --border: #e2e5ea;
  --primary: #1f5fbf;
  --primary-text: #ffffff;
  --success: #1d8a4e;
  --danger: #c0392b;
  --open-bg: #e8f0fd;      --open-fg: #1f5fbf;
  --progress-bg: #fff4dc;  --progress-fg: #8a5a00;
  --done-bg: #e3f5ea;      --done-fg: #1d6b41;
  --gfo-bg: #efe7fb;       --gfo-fg: #5b2fa6;
  --high-bg: #fde8e6;      --high-fg: #b0281b;
  --radius: 8px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --surface: #1d2128;
    --text: #e6e8ec;
    --muted: #9aa3b0;
    --border: #2e333c;
    --primary: #4c8ef0;
    --success: #34b06c;
    --danger: #ef6b5b;
    --open-bg: #1d2c44;      --open-fg: #8db6f5;
    --progress-bg: #3a2e14;  --progress-fg: #f0c46b;
    --done-bg: #173325;      --done-fg: #7fd6a4;
    --gfo-bg: #2c2140;       --gfo-fg: #c4a6f2;
    --high-bg: #3e1f1b;      --high-fg: #f39b8f;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 0 0 .75rem; }
h2 { font-size: 1rem; margin: 0 0 .75rem; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; white-space: nowrap; }
.prewrap { white-space: pre-wrap; word-break: break-word; }
.right { text-align: right; }

/* Kopfzeile */
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: .6rem 1.25rem; background: var(--surface);
  border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.brand { font-weight: 700; color: var(--text); font-size: 1.1rem; }
.brand span, .login h1 span { color: var(--primary); }
.topbar nav { display: flex; gap: .25rem; flex-wrap: wrap; }
.topbar nav a { color: var(--muted); padding: .35rem .7rem; border-radius: 6px; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); background: var(--bg); text-decoration: none; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: .75rem; }
.usermenu { position: relative; }
.usermenu summary { cursor: pointer; list-style: none; padding: .35rem .6rem; border-radius: 6px; }
.usermenu summary::after { content: " ▾"; color: var(--muted); }
.usermenu > div {
  position: absolute; right: 0; top: 2.2rem; z-index: 10; min-width: 180px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(0,0,0,.12); padding: .35rem;
}
.usermenu a, .usermenu button {
  display: block; width: 100%; text-align: left; padding: .45rem .6rem; border: 0;
  background: none; color: var(--text); font: inherit; cursor: pointer; border-radius: 4px;
}
.usermenu a:hover, .usermenu button:hover { background: var(--bg); text-decoration: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
.narrow { max-width: 760px; margin: 0 auto; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
}
.card + .card, section.card { margin-bottom: 1rem; }

/* Buttons */
.btn {
  display: inline-block; padding: .5rem .9rem; border-radius: 6px; font: inherit; font-weight: 500;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; filter: brightness(.97); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
button.link { background: none; border: 0; padding: 0; color: var(--primary); font: inherit; cursor: pointer; }
button.link:hover { text-decoration: underline; }
.danger { color: var(--danger) !important; }

/* Meldungen */
.flash { padding: .7rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; border: 1px solid var(--border); background: var(--surface); }
.flash-success { background: var(--done-bg); color: var(--done-fg); border-color: transparent; }
.flash-error { background: var(--high-bg); color: var(--high-fg); border-color: transparent; }
.flash-info { background: var(--open-bg); color: var(--open-fg); border-color: transparent; }

/* Formulare */
.field { margin-bottom: 1rem; }
.field > label { display: block; font-weight: 600; margin-bottom: .3rem; font-size: .9rem; }
.field-check > label { font-weight: 500; display: flex; gap: .5rem; align-items: center; }
input[type=text], input[type=email], input[type=password], input[type=search], input[type=number],
select, textarea {
  width: 100%; padding: .55rem .7rem; font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: transparent; }
.help { display: block; color: var(--muted); margin-top: .25rem; }
.error { display: block; color: var(--danger); margin-top: .25rem; }
.has-error input, .has-error textarea { border-color: var(--danger); }
.field ul { list-style: none; padding: 0; margin: 0; }
.field ul li label { display: flex; gap: .5rem; align-items: center; font-weight: 400; padding: .2rem 0; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin: 0 0 1rem; }
legend { font-weight: 600; padding: 0 .4rem; }
.actions { display: flex; justify-content: flex-end; gap: .5rem; flex-wrap: wrap; margin-top: .5rem; }
.check { display: inline-flex; gap: .4rem; align-items: center; white-space: nowrap; }

/* Mail-Import */
.dropzone-card { margin-bottom: 0; }
.dropzone-card p { margin: .25rem 0 .75rem; }
.dropzone {
  display: block; border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 1.5rem; text-align: center; cursor: pointer; color: var(--muted);
}
.dropzone.over, .dropzone:hover { border-color: var(--primary); color: var(--primary); background: var(--open-bg); }
.dropzone input { display: none; }
.divider { text-align: center; color: var(--muted); margin: 1.25rem 0; position: relative; }
.divider::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px solid var(--border); }
.divider span { position: relative; background: var(--bg); padding: 0 .75rem; }

/* Liste */
.list-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.list-head h1 { margin: 0; }
.tabs { display: flex; gap: .25rem; flex-wrap: wrap; }
.tabs a { padding: .4rem .8rem; border-radius: 6px; color: var(--muted); }
.tabs a.active { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.tabs a:hover { text-decoration: none; color: var(--text); }
.count { font-size: .8em; background: var(--bg); border-radius: 10px; padding: 0 .45rem; margin-left: .2rem; }
.search { display: flex; gap: .75rem; align-items: center; flex: 1; max-width: 480px; }
.table-wrap { padding: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .65rem .9rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }
table.tickets tbody tr { cursor: pointer; }
table.tickets tbody tr:hover { background: var(--bg); }
tr.inactive { opacity: .55; }
.empty { text-align: center; padding: 3rem 1rem; }

/* Status & Badges */
.status, .badge {
  display: inline-block; font-size: .78rem; font-weight: 600; padding: .1rem .55rem;
  border-radius: 999px; white-space: nowrap; vertical-align: middle;
}
.status-offen { background: var(--open-bg); color: var(--open-fg); }
.status-in_bearbeitung { background: var(--progress-bg); color: var(--progress-fg); }
.status-erledigt { background: var(--done-bg); color: var(--done-fg); }
.badge-gfo { background: var(--gfo-bg); color: var(--gfo-fg); }
.badge-hoch, .badge-high { background: var(--high-bg); color: var(--high-fg); }
.badge-niedrig { background: var(--bg); color: var(--muted); }

/* Detail */
.detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.detail-head h1 { margin: .15rem 0 .4rem; }
.detail-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.detail-actions form { margin: 0; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 1rem; align-items: start; }
.detail-side dl { margin: 0 0 1rem; }
.detail-side dt { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; margin-top: .75rem; }
.detail-side dt:first-child { margin-top: 0; }
.detail-side dd { margin: .1rem 0 0; word-break: break-word; }
.attachments { list-style: none; padding: 0; margin: 0 0 1rem; }
.attachments li { display: flex; align-items: center; gap: .6rem; padding: .55rem .6rem; border-radius: 6px; flex-wrap: wrap; }
.attachments li + li { border-top: 1px solid var(--border); }
.attachments li.is-gfo { background: var(--gfo-bg); }
.att-name { font-weight: 500; word-break: break-all; }
.att-actions { margin-left: auto; display: flex; gap: .9rem; font-size: .85rem; }
.att-actions form { margin: 0; }
.upload-row { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; padding-top: .75rem; border-top: 1px solid var(--border); }
.upload-row input[type=file] { flex: 1; min-width: 200px; }
.timeline { list-style: none; padding: 0; margin: 0 0 1rem; }
.timeline li { padding: .6rem 0; border-bottom: 1px solid var(--border); }
.timeline li.system { color: var(--muted); font-size: .9rem; }
.timeline .meta { font-size: .8rem; color: var(--muted); margin-bottom: .15rem; }
.sentmail { border-top: 1px solid var(--border); padding: .6rem 0; }
.sentmail summary { cursor: pointer; }
.sentmail dl { display: grid; grid-template-columns: 80px 1fr; gap: .2rem .75rem; margin: .75rem 0; }
.sentmail dt { color: var(--muted); }
.sentmail dd { margin: 0; }
.mailbody { background: var(--bg); padding: .75rem; border-radius: 6px; font-size: .9rem; }
.hint { margin: 0 0 1rem; color: var(--muted); }
.hint summary { cursor: pointer; }
.hint code { background: var(--bg); padding: .05rem .3rem; border-radius: 4px; color: var(--text); }

/* Login */
.login { max-width: 380px; margin: 10vh auto 0; }
.login h1 { text-align: center; margin-bottom: 1.25rem; }

@media (max-width: 860px) {
  .detail-grid { grid-template-columns: 1fr; }
  .detail-side { order: -1; }
  .search { max-width: none; }
  .topbar-right { margin-left: 0; width: 100%; justify-content: space-between; }
}