:root {
  --bg: #f4f5f7;
  --card: #fff;
  --text: #1d2330;
  --muted: #6b7280;
  --border: #e2e5ea;
  --border-strong: #cfd4dc;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eaf1fe;
  --danger: #c62828;
  --danger-soft: #fdecec;
  --ok: #15803d;
  --ok-soft: #e5f5ea;
  --warn: #b45309;
  --warn-soft: #fef3e2;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, "Open Sans", sans-serif;
}

a { color: var(--accent); }
[hidden] { display: none !important; }

/* ---------- Kopfzeile ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px;
  height: 52px; padding: 0 24px;
  background: #fff; border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 650; font-size: 15px; white-space: nowrap; }
.brand-mark {
  display: grid; place-items: center; width: 24px; height: 24px;
  border-radius: 6px; background: var(--accent); color: #fff; font-size: 13px;
}
.brand { text-decoration: none; color: inherit; }
.firm-select { width: auto; max-width: 260px; font-weight: 600; background-color: var(--bg); border-color: transparent; }
.firm-select:disabled { opacity: 1; color: var(--text); -webkit-appearance: none; appearance: none; }
nav { display: flex; gap: 2px; flex: 1; }
nav a { padding: 7px 12px; border-radius: 6px; color: var(--muted); text-decoration: none; font-weight: 500; }
nav a:hover { background: var(--bg); color: var(--text); }
nav a.active { background: var(--accent-soft); color: var(--accent); }

main { max-width: 1180px; margin: 0 auto; padding: 24px 24px 100px; }

.page-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; min-height: 38px; }
.page-head h1 { margin: 0; font-size: 22px; font-weight: 650; }
.back { text-decoration: none; color: var(--muted); }
.back:hover { color: var(--accent); }
.tools { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-left: auto; }
.tools input[type=search] { width: 240px; }
.tools select { width: auto; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; margin-bottom: 16px; box-shadow: 0 1px 2px rgba(16, 24, 40, .04);
}
.card.flush { padding: 0; overflow: hidden; }
.card h2 {
  margin: 0 0 12px; font-size: 12px; font-weight: 650; letter-spacing: .05em;
  text-transform: uppercase; color: var(--muted);
}

/* ---------- Formulare ---------- */
input, select, textarea {
  width: 100%; padding: 7px 10px;
  font: inherit; color: var(--text); background: #fff;
  border: 1px solid var(--border-strong); border-radius: 6px;
}
input:focus, select:focus, textarea:focus { outline: 3px solid var(--accent-soft); border-color: var(--accent); }
textarea { resize: vertical; line-height: 1.45; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; font-weight: 500; color: var(--muted); }
label > input, label > textarea, label > select, label > .suffix { font-size: 14px; font-weight: 400; }
.block { margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
.span2 { grid-column: span 2; }
.hint { margin: 6px 0 0; font-size: 12px; font-weight: 400; color: var(--muted); }
.opt { font-weight: 400; color: #9aa1ac; }
.suffix { position: relative; }
.suffix input { padding-right: 30px; }
.suffix span { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.invalid { border-color: var(--danger) !important; background: var(--danger-soft) !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px;
  font: inherit; font-weight: 500; color: var(--text); text-decoration: none; white-space: nowrap;
  background: #fff; border: 1px solid var(--border-strong); border-radius: 6px; cursor: pointer;
}
.btn:hover { background: #f7f8fa; border-color: #b9c0ca; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: var(--danger-soft); border-color: #efb4b4; }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn.ghost:hover { background: var(--bg); color: var(--text); }
.btn:disabled { opacity: .6; cursor: default; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.link-btn {
  padding: 4px 8px; font: inherit; font-size: 13px; color: var(--accent); text-decoration: none;
  background: none; border: 0; border-radius: 5px; cursor: pointer;
}
.link-btn:hover { background: var(--accent-soft); }
.link-btn.danger { color: var(--danger); }
.link-btn.danger:hover { background: var(--danger-soft); }

/* ---------- Listen ---------- */
table.table { width: 100%; border-collapse: collapse; }
.table th {
  padding: 10px 14px; text-align: left; white-space: nowrap;
  font-size: 12px; font-weight: 600; color: var(--muted);
  background: #fafbfc; border-bottom: 1px solid var(--border);
}
.table th.num { text-align: right; }
.table td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover { background: #f8fafd; }
.table .pre { white-space: pre-line; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.actions { text-align: right; white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.empty { padding: 48px 20px; text-align: center; color: var(--muted); }
.empty p { margin: 0 0 14px; }

.chip { padding: 3px 10px; font: inherit; font-size: 12px; font-weight: 600; border: 0; border-radius: 999px; cursor: pointer; }
.chip.open { background: var(--warn-soft); color: var(--warn); }
.chip.paid { background: var(--ok-soft); color: var(--ok); }
.badge {
  padding: 2px 8px; font-size: 12px; font-weight: 600; vertical-align: middle;
  color: var(--accent); background: var(--accent-soft); border-radius: 999px;
}

.stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.stat { min-width: 170px; padding: 10px 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); }
.stat .k { font-size: 12px; color: var(--muted); }
.stat .v { font-size: 18px; font-weight: 650; font-variant-numeric: tabular-nums; }

/* ---------- Rechnungs-Editor ---------- */
.editor-top { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.editor-top .card { display: flex; flex-direction: column; }
.inline { display: flex; gap: 8px; margin-bottom: 8px; }
.inline select { flex: 1; }
#recipient { flex: 1; min-height: 120px; }

.table-wrap { overflow-x: auto; margin: 4px -6px 0; }
table.lines { width: 100%; min-width: 820px; border-collapse: collapse; }
.lines th { padding: 8px 6px; text-align: left; font-size: 12px; font-weight: 600; color: var(--muted); background: #f1f3f6; }
.lines th:first-child { border-radius: 6px 0 0 6px; }
.lines th:last-child { border-radius: 0 6px 6px 0; }
.lines th.num { text-align: right; }
.lines td { padding: 6px; vertical-align: top; border-bottom: 1px solid var(--border); }
.lines input, .lines textarea { padding: 6px 8px; }
.lines input.num { text-align: right; }
.lines textarea { display: block; min-height: 34px; overflow: hidden; resize: none; }
.lines .c-pos { width: 40px; padding-top: 13px; text-align: center; color: var(--muted); }
.lines .c-qty { width: 90px; }
.lines .c-unit { width: 120px; }
.lines .c-price { width: 120px; }
.lines .c-sum { width: 120px; padding-top: 13px; }
.lines .c-act { width: 128px; padding-top: 9px; white-space: nowrap; text-align: right; }
.icon {
  width: 28px; height: 28px; font-size: 14px; color: var(--muted);
  background: transparent; border: 0; border-radius: 5px; cursor: pointer;
}
.icon:hover { background: #eef0f3; color: var(--text); }
.icon.danger:hover { background: var(--danger-soft); color: var(--danger); }

.lines-foot { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin: 12px 0 18px; flex-wrap: wrap; }
table.totals { min-width: 320px; border-collapse: collapse; }
.totals td { padding: 4px 0 4px 24px; text-align: right; font-variant-numeric: tabular-nums; }
.totals td:first-child { color: var(--muted); }
.totals tr.grand td { padding-top: 8px; font-size: 16px; font-weight: 700; color: var(--text); border-top: 1px solid var(--border); }

.notice {
  display: flex; align-items: center; gap: 14px; margin-bottom: 16px; padding: 10px 14px;
  color: #7c4a03; background: var(--warn-soft); border: 1px solid #f3d4a3; border-radius: var(--radius);
}
.notice > span { flex: 1; }

.actionbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 5;
  padding: 12px 24px; background: rgba(255, 255, 255, .96);
  border-top: 1px solid var(--border); backdrop-filter: blur(6px);
}
.actionbar .inner { display: flex; align-items: center; gap: 8px; max-width: 1132px; margin: 0 auto; }
.spacer { flex: 1; }
.dirty { margin-right: 6px; font-size: 12.5px; color: var(--warn); }

/* ---------- Einstellungen ---------- */
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.logo-box {
  display: grid; place-items: center; min-height: 90px; padding: 16px; margin: 4px 0 10px;
  background: #fafbfc; border: 1px dashed var(--border-strong); border-radius: 8px;
}
.logo-box img { max-width: 100%; max-height: 80px; }
code { padding: 2px 6px; font-size: 12.5px; background: #f1f3f6; border-radius: 4px; word-break: break-all; }
ul.plain { margin: 8px 0; padding-left: 18px; }
ul.plain li { margin: 4px 0; }

/* ---------- Dialog ---------- */
dialog {
  width: min(580px, calc(100vw - 32px)); padding: 0; color: var(--text);
  border: 0; border-radius: 12px; box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
}
dialog::backdrop { background: rgba(17, 24, 39, .45); }
.dlg { padding: 20px 22px; }
.dlg h2 { margin: 0 0 16px; font-size: 18px; }
.dlg-foot { display: flex; align-items: center; gap: 8px; margin-top: 18px; }
.dlg-err { margin: 12px 0 0; padding: 8px 12px; color: var(--danger); background: var(--danger-soft); border-radius: 6px; }
.pick-list { max-height: 50vh; margin-top: 10px; overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
.pick {
  display: flex; justify-content: space-between; gap: 16px; width: 100%; padding: 10px 12px;
  font: inherit; text-align: left; color: var(--text);
  background: #fff; border: 0; border-bottom: 1px solid var(--border); cursor: pointer;
}
.pick:last-child { border-bottom: 0; }
.pick:hover, .pick:focus { background: var(--accent-soft); outline: none; }
.pick .d { white-space: pre-line; }
.pick .m { white-space: nowrap; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------- Meldungen ---------- */
#toast {
  position: fixed; left: 50%; bottom: 84px; z-index: 100; max-width: 90vw; padding: 10px 18px;
  color: #fff; background: #1f2937; border-radius: 8px;
  opacity: 0; transform: translate(-50%, 16px); transition: opacity .2s, transform .2s; pointer-events: none;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }
#toast.error { background: var(--danger); }

.offline {
  position: fixed; inset: 0; z-index: 200; display: grid; place-items: center;
  padding: 24px; text-align: center; background: rgba(244, 245, 247, .97);
}

@media (max-width: 860px) {
  .topbar { gap: 10px; padding: 0 12px; overflow-x: auto; }
  .brand { display: none; }
  main { padding: 16px 12px 100px; }
  .editor-top, .settings-grid, .form-grid { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .tools input[type=search] { width: 100%; }
}

/* ---------- Menü ---------- */
.menu { position: relative; margin-left: auto; }
.menu > summary { list-style: none; }
.menu > summary::-webkit-details-marker { display: none; }
.menu-pop {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 20; min-width: 210px; padding: 6px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 10px 30px rgba(0, 0, 0, .12);
}
.menu-pop a, .menu-pop button {
  display: block; width: 100%; padding: 8px 12px; text-align: left; font: inherit; color: var(--text);
  text-decoration: none; background: none; border: 0; border-radius: 6px; cursor: pointer;
}
.menu-pop a:hover, .menu-pop button:hover { background: var(--bg); }
.menu-pop button { border-top: 1px solid var(--border); border-radius: 0 0 6px 6px; margin-top: 4px; }
.menu-pop button:first-child { border-top: 0; margin-top: 0; }

/* ---------- Anmeldung ---------- */
.login-screen { position: fixed; inset: 0; z-index: 150; display: grid; place-items: center; padding: 16px; background: var(--bg); }
.login-card {
  display: flex; flex-direction: column; gap: 14px; width: min(380px, 100%); padding: 28px;
  background: #fff; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 10px 30px rgba(16, 24, 40, .08);
}
.login-card h1 { margin: 6px 0 0; font-size: 20px; }
.login-card .dlg-err { margin: 0; }
.login-card .btn { justify-content: center; padding: 9px 14px; }
.turnstile { min-height: 65px; }

/* ---------- Verwaltung ---------- */
.card.narrow { max-width: 460px; }
fieldset.checks { margin: 0; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; display: flex; flex-wrap: wrap; gap: 6px 18px; }
fieldset.checks legend { padding: 0 4px; font-size: 12.5px; font-weight: 500; color: var(--muted); }
fieldset.checks:disabled { opacity: .5; }
label.check { flex-direction: row; align-items: center; gap: 8px; font-size: 14px; color: var(--text); font-weight: 400; }
label.check input { width: auto; }
.link-btn:disabled { color: #aab0ba; cursor: not-allowed; background: none; }