:root {
  --bg: #f1f5f9;
  --panel: #ffffff;
  --sidebar: #0f172a;
  --sidebar-hover: #1e293b;
  --sidebar-text: #cbd5e1;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #dbeafe;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --success: #16a34a;
  --success-soft: #dcfce7;
  --warning: #d97706;
  --warning-soft: #fef3c7;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --info-soft: #e0f2fe;
  --info: #0284c7;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.15);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }
button { font-family: inherit; }
a { color: var(--primary); text-decoration: none; }
.boot { display: grid; place-items: center; height: 100vh; color: var(--muted); }

/* ---------- Layout ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px; background: var(--sidebar); color: var(--sidebar-text);
  display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; inset-inline-start: 0; z-index: 40;
}
.sidebar .brand { display: flex; align-items: center; gap: 10px; padding: 20px 20px; font-weight: 700; font-size: 18px; color: #fff; }
.sidebar .brand .logo {
  width: 32px; height: 32px; border-radius: 8px; background: var(--primary);
  display: grid; place-items: center; font-weight: 800; color: #fff;
}
.nav { flex: 1; overflow-y: auto; padding: 8px; }
.nav a {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 8px;
  color: var(--sidebar-text); font-weight: 500; margin-bottom: 2px; cursor: pointer;
}
.nav a:hover { background: var(--sidebar-hover); color: #fff; }
.nav a.active { background: var(--primary); color: #fff; }
.nav a .ic { width: 18px; text-align: center; opacity: .9; }
.nav .group { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: #64748b; padding: 16px 14px 6px; }
.sidebar .foot { padding: 14px; border-top: 1px solid #1e293b; font-size: 12px; }

.main { margin-inline-start: 240px; flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 64px; background: var(--panel); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px; padding: 0 24px; position: sticky; top: 0; z-index: 30;
}
.topbar h1 { font-size: 18px; margin: 0; flex: 1; }
.content { padding: 24px; flex: 1; }
.menu-toggle { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; }

/* ---------- Cards & Grid ---------- */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-pad { padding: 20px; }
.card h2, .card h3 { margin-top: 0; }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-auto { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.section-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.section-title h2 { font-size: 16px; margin: 0; }

.kpi { padding: 18px 20px; }
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.kpi .value { font-size: 26px; font-weight: 700; margin-top: 6px; }
.kpi .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }
.kpi.accent .value { color: var(--primary); }
.kpi.success .value { color: var(--success); }
.kpi.danger .value { color: var(--danger); }
.kpi.warning .value { color: var(--warning); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 9px 15px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text); font-weight: 600;
  cursor: pointer; font-size: 13px; transition: .15s; white-space: nowrap;
}
.btn:hover { background: #f8fafc; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: #f1f5f9; }
.btn.sm { padding: 6px 10px; font-size: 12px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Forms ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 600; font-size: 12px; margin-bottom: 5px; color: #334155; }
input, select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 13px; font-family: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
textarea { resize: vertical; min-height: 72px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.inline { display: flex; gap: 8px; align-items: center; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: start; padding: 11px 14px; border-bottom: 1px solid var(--border); color: var(--muted);
  font-size: 11px; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; background: #f8fafc;
}
td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:hover { background: #f8fafc; }
tbody tr:last-child td { border-bottom: 0; }
.num { text-align: end; font-variant-numeric: tabular-nums; white-space: nowrap; }
.row-link { cursor: pointer; }
.empty { text-align: center; color: var(--muted); padding: 40px 16px; }

/* ---------- Badges ---------- */
/* Schlüssel-Wert-Tabelle (z. B. eingelesene E-Rechnung) */
table.kv th { width: 30%; text-align: left; vertical-align: top; text-transform: none; letter-spacing: 0; font-size: 12px; }
button.badge { border: 0; cursor: pointer; }
.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; white-space: nowrap; }
.badge.draft { background: #e2e8f0; color: #475569; }
.badge.sent, .badge.viewed { background: var(--info-soft); color: var(--info); }
.badge.paid, .badge.approved { background: var(--success-soft); color: var(--success); }
.badge.partial { background: var(--warning-soft); color: var(--warning); }
.badge.overdue { background: var(--danger-soft); color: var(--danger); }
.badge.cancelled, .badge.expired { background: #f1f5f9; color: #94a3b8; }
.badge.converted { background: #ede9fe; color: #7c3aed; }
.badge.neutral { background: #f1f5f9; color: #475569; }

/* ---------- Login ---------- */
.auth-wrap { display: grid; place-items: center; min-height: 100vh; padding: 20px;
  background: radial-gradient(1200px 600px at 20% 0%, #1e3a8a, #0f172a); }
.auth-card { width: 100%; max-width: 420px; background: #fff; border-radius: 16px; padding: 32px; box-shadow: var(--shadow-lg); }
.auth-card .brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.auth-card .brand .logo { width: 36px; height: 36px; border-radius: 9px; background: var(--primary); color: #fff; display: grid; place-items: center; }
.auth-card p.muted { color: var(--muted); margin-top: 0; }
.auth-switch { text-align: center; margin-top: 16px; font-size: 13px; color: var(--muted); }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,.5); display: grid; place-items: center;
  z-index: 100; padding: 20px; overflow-y: auto;
}
.modal {
  background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg); width: 100%; max-width: 620px;
  max-height: 92vh; display: flex; flex-direction: column; margin: auto;
}
.modal.wide { max-width: 980px; }
.modal-header { padding: 18px 22px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h3 { margin: 0; font-size: 16px; }
.modal-body { padding: 22px; overflow-y: auto; }
.modal-footer { padding: 16px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
.modal-close { background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--muted); line-height: 1; }

/* ---------- Toast ---------- */
#toast-root { position: fixed; bottom: 20px; inset-inline-end: 20px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast { background: #0f172a; color: #fff; padding: 12px 18px; border-radius: 10px; box-shadow: var(--shadow-lg);
  animation: slideIn .2s ease; max-width: 360px; font-size: 13px; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
@keyframes slideIn { from { transform: translateY(10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ---------- Document editor ---------- */
.item-row { display: grid; grid-template-columns: 2.5fr .7fr .9fr .7fr .6fr 1fr 34px; gap: 8px; align-items: start; margin-bottom: 8px; }
.item-row input, .item-row select { padding: 7px 9px; font-size: 12px; }
.item-row .line-total { padding: 8px 9px; text-align: end; font-variant-numeric: tabular-nums; background: #f8fafc; border-radius: 8px; font-size: 12px; }
.totals-box { margin-inline-start: auto; width: 320px; }
.totals-box .row { display: flex; justify-content: space-between; padding: 6px 0; }
.totals-box .row.total { border-top: 2px solid var(--primary); font-weight: 700; font-size: 16px; margin-top: 6px; padding-top: 10px; }
.item-head { display: grid; grid-template-columns: 2.5fr .7fr .9fr .7fr .6fr 1fr 34px; gap: 8px; font-size: 11px; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; margin-bottom: 6px; }
.product-picker { position: relative; }

/* ---------- Charts (SVG) ---------- */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 180px; padding-top: 10px; }
.bars .bar-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 4px; height: 100%; }
.bars .bar { width: 100%; max-width: 34px; background: var(--primary); border-radius: 5px 5px 0 0; min-height: 2px; transition: .3s; }
.bars .bar.exp { background: #fca5a5; }
.bars .lbl { font-size: 10px; color: var(--muted); }
.bar-legend { display: flex; gap: 16px; font-size: 12px; color: var(--muted); margin-top: 8px; }
.bar-legend .dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-inline-end: 5px; }
.hbar { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.hbar .name { width: 150px; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hbar .track { flex: 1; background: #f1f5f9; border-radius: 6px; height: 22px; overflow: hidden; }
.hbar .fill { height: 100%; background: var(--primary); border-radius: 6px; }
.hbar .val { width: 100px; text-align: end; font-size: 12px; font-variant-numeric: tabular-nums; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.toolbar .search { flex: 1; min-width: 180px; max-width: 340px; }
.pill-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.pill-tabs button { border: 1px solid var(--border); background: #fff; padding: 7px 13px; border-radius: 999px; cursor: pointer; font-size: 12px; font-weight: 600; color: var(--muted); }
.pill-tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.muted { color: var(--muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.right { text-align: end; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: #f1f5f9; border-radius: 999px; padding: 4px 10px; font-size: 12px; }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid #cbd5e1; border-top-color: var(--primary); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Aufgaben-Board (Kanban) ---------- */
.kb-board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: start; }
.kb-col { background: #f8fafc; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; transition: background .12s, border-color .12s; }
.kb-col.kb-over { background: var(--primary-soft); border-color: var(--primary); }
.kb-col-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 2px 4px 10px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.kb-col[data-status="in_progress"] .kb-col-head { color: var(--info); }
.kb-col[data-status="done"] .kb-col-head { color: var(--success); }
.kb-count { background: #e2e8f0; color: #475569; border-radius: 999px; padding: 1px 8px; font-size: 11px; }
.kb-list { display: flex; flex-direction: column; gap: 8px; min-height: 56px; }
.kb-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; box-shadow: var(--shadow); cursor: grab; }
.kb-card:hover { border-color: #cbd5e1; }
.kb-card.kb-dragging { opacity: .45; cursor: grabbing; }
.kb-card-head { display: flex; align-items: flex-start; gap: 6px; }
.kb-card-title { flex: 1; min-width: 0; font-size: 13px; font-weight: 600; word-break: break-word; }
/* Griff zum Ziehen auf Touch-Geräten (Maus zieht die ganze Karte); touch-action: none, damit die Geste nicht scrollt */
.kb-handle { display: none; flex: none; align-items: center; justify-content: center; width: 36px; height: 36px; margin: -8px -8px -8px 0;
  border: 0; background: none; color: var(--muted); font-size: 18px; line-height: 1; border-radius: 8px; cursor: grab;
  touch-action: none; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
.kb-handle:active { background: var(--primary-soft); color: var(--primary); }
@media (any-pointer: coarse) { .kb-handle { display: inline-flex; } }
.kb-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: 8px; font-size: 12px; color: var(--muted); }
.kb-card-actions { display: flex; gap: 2px; }
.kb-card-actions .btn { padding: 3px 6px; }
.kb-empty { color: var(--muted); font-size: 12px; text-align: center; padding: 14px 0; pointer-events: none; }
.kb-list:has(.kb-card) .kb-empty { display: none; }

@media (max-width: 900px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid.cols-3 { grid-template-columns: 1fr; }
  .grid.cols-2 { grid-template-columns: 1fr; }
  .kb-board { grid-template-columns: 1fr; }
  .form-row,.form-row-3 { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); transition: .2s; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-inline-start: 0; }
  .menu-toggle { display: block; }
  .item-head { display: none; }
  .item-row { grid-template-columns: 1fr 1fr; grid-auto-flow: dense; }
  .totals-box { width: 100%; }
}

/* Sprachumschalter (Topbar, Anmeldeseite) und RTL-Feinheiten (nur Infrastruktur, siehe i18n/admin.js) */
.lang-switch { width: auto; padding: 6px 8px; font-size: 13px; }
@media (max-width: 900px) {
  :root[dir="rtl"] .sidebar { transform: translateX(100%); }
  :root[dir="rtl"] .sidebar.open { transform: translateX(0); }
}