:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #d8dee6;
  --text: #1a2233;
  --muted: #6b7488;
  --primary: #1f3b73;
  --primary-hover: #2a4d99;
  --danger: #b3271c;
  --highlight: #fff3a8;
  --shadow: 0 1px 3px rgba(20, 30, 60, 0.08), 0 4px 12px rgba(20, 30, 60, 0.06);
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

button, .btn-link {
  font: inherit;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  text-decoration: none;
  display: inline-block;
}
button:hover, .btn-link:hover { background: var(--primary-hover); }
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.ghost:hover { background: #eef1f6; }
button.danger { background: var(--danger); }
button.danger:hover { background: #8e1f17; }

input, select, textarea {
  font: inherit;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(31,59,115,0.25); border-color: var(--primary); }
label { display: block; margin-bottom: 10px; color: var(--muted); font-size: 12px; }
label input, label select { margin-top: 4px; color: var(--text); }
small { color: var(--muted); }

.card { background: var(--surface); border-radius: 10px; box-shadow: var(--shadow); padding: 24px; }
.error { color: var(--danger); margin-top: 8px; }
.status { margin-top: 8px; color: var(--muted); }

/* hidden attribute must always win over display rules */
[hidden] { display: none !important; }

/* Login */
#view-login { display: flex; align-items: center; justify-content: center; height: 100%; }
.login-card { width: min(360px, 92vw); }
.login-card h1 { margin: 0 0 16px; font-size: 22px; color: var(--primary); }
.login-card button { width: 100%; margin-top: 8px; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 20px; background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; color: var(--primary); font-size: 18px; }
.search { flex: 1; max-width: 520px; }
.user-area { display: flex; gap: 8px; align-items: center; color: var(--muted); }

/* Main layout */
.main { display: grid; grid-template-columns: 320px 1fr; gap: 20px; padding: 20px; }
@media (max-width: 880px) { .main { grid-template-columns: 1fr; } }

.sidebar { background: var(--surface); border-radius: 10px; box-shadow: var(--shadow); padding: 16px; }
.sidebar h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 12px 0 8px; }
.sidebar h2:first-child { margin-top: 0; }

.dropzone {
  border: 2px dashed var(--border); border-radius: 8px;
  padding: 18px; text-align: center; color: var(--muted);
  cursor: pointer; background: #fafbfd; transition: all 0.15s;
}
.dropzone.drag { border-color: var(--primary); background: #eef3fb; color: var(--primary); }
.file-name { font-size: 12px; color: var(--muted); margin: 6px 0 10px; min-height: 16px; }

.upload button { width: 100%; }

.content { background: var(--surface); border-radius: 10px; box-shadow: var(--shadow); padding: 4px; overflow: hidden; }

/* Documents table */
.docs { width: 100%; border-collapse: collapse; }
.docs th, .docs td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.docs th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); background: #fafbfd; }
.docs tr:hover td { background: #f7f9fc; }
.docs td.empty { text-align: center; color: var(--muted); padding: 24px; }
.docs .title-cell { font-weight: 600; cursor: pointer; }
.docs .title-cell mark { background: var(--highlight); padding: 0 2px; border-radius: 2px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; background: #eef1f6; color: var(--muted); }
.badge.cat-Rechnung { background: #fde7e7; color: #8e1f17; }
.badge.cat-Vertrag { background: #e6efff; color: var(--primary); }
.badge.cat-Korrespondenz { background: #e7f5ec; color: #226d3d; }
.badge.cat-Sonstiges { background: #eef1f6; color: var(--muted); }
.ocr-status { font-size: 11px; color: var(--muted); }
.ocr-running { color: #b07000; }
.ocr-done { color: #226d3d; }
.ocr-failed { color: var(--danger); }

/* Dialog */
dialog {
  border: none; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  padding: 0; width: min(1100px, 95vw); max-height: 92vh;
}
dialog::backdrop { background: rgba(20,30,60,0.4); }
dialog header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
}
dialog header h2 { margin: 0; font-size: 16px; color: var(--primary); }

.doc-body { display: grid; grid-template-columns: 1fr 320px; min-height: 70vh; max-height: calc(92vh - 50px); }
@media (max-width: 880px) { .doc-body { grid-template-columns: 1fr; } }
.doc-viewer { background: #2c2f36; min-height: 50vh; }
.doc-viewer iframe { width: 100%; height: 100%; border: none; }
.doc-meta { padding: 16px; overflow-y: auto; }
.doc-meta button[type="submit"] { width: 100%; }
.doc-info { font-size: 12px; color: var(--muted); margin: 8px 0; line-height: 1.5; }
.doc-actions { display: flex; flex-direction: column; gap: 8px; }
.doc-actions .btn-link { text-align: center; background: #eef1f6; color: var(--text); }
.doc-actions .btn-link:hover { background: #dee3ec; }

/* Admin dialog */
.admin-dialog { width: min(900px, 95vw); }
.admin-tabs { display: flex; gap: 4px; padding: 8px 16px; border-bottom: 1px solid var(--border); background: #fafbfd; }
.admin-tabs button { background: transparent; color: var(--muted); border: none; padding: 8px 14px; border-radius: 6px; }
.admin-tabs button.active { background: var(--primary); color: #fff; }
.admin-pane { padding: 16px; max-height: calc(92vh - 120px); overflow-y: auto; }
.admin-pane h3 { margin: 16px 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.admin-pane h3:first-child { margin-top: 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; align-items: end; }
.grid2 label.full { grid-column: span 2; }
.grid2 button { grid-column: span 2; }
.grid2 button.ghost { grid-column: auto; }
label.checkbox { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 14px; }
label.checkbox input { width: auto; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 8px 0; }
.hint { font-size: 12px; color: var(--muted); margin: 4px 0 12px; }

/* Users dialog */
.user-form { display: grid; grid-template-columns: 1fr 1fr 120px auto; gap: 8px; padding: 16px; border-bottom: 1px solid var(--border); }
.users-dialog { width: min(640px, 95vw); }
.users-table { width: 100%; border-collapse: collapse; }
.users-table th, .users-table td { padding: 8px 12px; border-bottom: 1px solid var(--border); text-align: left; }
.users-table th { font-size: 12px; color: var(--muted); text-transform: uppercase; }
.row-actions { display: flex; gap: 6px; }
.row-actions button { padding: 4px 10px; font-size: 12px; }