:root {
  --bg: #eef1f4;
  --surface: #ffffff;
  --ink: #17202a;
  --muted: #5d6874;
  --line: #d7dde3;
  --accent: #1d6a51;
  --accent-ink: #ffffff;
  --warn: #9a5b00;
  --warn-bg: #fdf1dc;
  --err: #b42318;
  --err-bg: #fdeceb;
  --ok-bg: #e6f3ee;
  --radius: 6px;
}
* { box-sizing: border-box; }
html { font-size: 15px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.45; font-variant-numeric: tabular-nums;
}
a { color: var(--accent); }
h1 { font-size: 1.6rem; margin: 0 0 .6rem; font-weight: 700; }
h2 { font-size: 1.15rem; margin: 1.6rem 0 .4rem; }
code { font-size: .9em; background: #e3e8ec; padding: .05em .3em; border-radius: 3px; }

.top {
  display: flex; align-items: center; gap: 1.5rem; padding: .7rem 1.5rem;
  background: var(--ink); color: #fff;
}
.brand { font-weight: 700; letter-spacing: .01em; }
.top nav { display: flex; gap: 1.1rem; flex: 1; }
.top nav a { color: #cfd8df; text-decoration: none; }
.top nav a:hover, .top nav a:focus-visible { color: #fff; text-decoration: underline; }
.badge { background: var(--warn-bg); color: var(--warn); padding: .15rem .6rem; border-radius: 99px; font-weight: 600; font-size: .85rem; }

main { padding: 1.5rem; max-width: 1500px; margin: 0 auto; }
section { margin-bottom: 1rem; }
.narrow { max-width: 34rem; background: var(--surface); padding: 1.6rem; border-radius: var(--radius); border: 1px solid var(--line); }
.stack { display: grid; gap: .9rem; }
label { display: grid; gap: .3rem; font-weight: 600; }

input, select {
  font: inherit; color: inherit; background: #fff;
  border: 1px solid var(--line); border-radius: 4px; padding: .35rem .5rem; width: 100%;
}
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}

.btn {
  font: inherit; font-weight: 600; cursor: pointer; padding: .55rem 1.1rem;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); color: var(--ink);
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn:disabled { opacity: .6; cursor: progress; }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); cursor: pointer; text-decoration: underline; }

.drop {
  border: 2px dashed var(--line); border-radius: var(--radius); padding: 2rem 1rem;
  text-align: center; font-weight: 400; color: var(--muted); cursor: pointer; position: relative;
}
.drop:hover { border-color: var(--accent); }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.msg { padding: .6rem .8rem; border-radius: var(--radius); margin: .5rem 0; }
.msg.error { background: var(--err-bg); color: var(--err); }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.ok { color: var(--accent); font-weight: 600; }
.warn { color: var(--warn); font-weight: 600; }
.strong { font-weight: 700; }

.docs { display: flex; flex-wrap: wrap; gap: .6rem; margin: .8rem 0; }
.doc {
  display: flex; gap: .8rem; align-items: baseline; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .5rem .8rem;
}

.tablewrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; min-width: 1100px; }
th, td { padding: .5rem .55rem; border-bottom: 1px solid var(--line); vertical-align: top; text-align: left; }
th { font-size: .85rem; color: var(--muted); font-weight: 600; background: #f7f9fa; position: sticky; top: 0; }
td.r, th.r { text-align: right; }
td.c, th.c { text-align: center; width: 2.2rem; }
td.c input { width: auto; margin-top: .45rem; }
td.pos { min-width: 22rem; }
td.r.muted, td.r.strong { padding-top: .9rem; white-space: nowrap; }
.desc { font-weight: 600; }
.cust { min-width: 14rem; }
.cust.missing { border-color: var(--warn); background: var(--warn-bg); }
.num { text-align: right; width: 6.5rem; }
.num.qty { width: 4.5rem; }
select { min-width: 7.5rem; }
.meta { font-size: .85rem; color: var(--muted); margin-top: .25rem; }
.meta .tk { white-space: nowrap; }
.meta .tk input { width: 6.5em; padding: .1rem .3rem; font: inherit; margin-left: .15rem; }
.meta.result { color: var(--ink); font-weight: 600; }
.tag { display: inline-block; font-size: .8rem; padding: 0 .45rem; border-radius: 99px; background: #e3e8ec; color: var(--muted); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.actions { white-space: nowrap; padding-top: .9rem; }
.actions .link + .link { margin-left: .7rem; }
tr.off td { opacity: .5; }
tr.off td.c { opacity: 1; }
tr.st-ok td { background: var(--ok-bg); }
tr.st-err td { background: var(--err-bg); }
tr.st-err .meta.result { color: var(--err); }

.bar {
  position: sticky; bottom: 0; margin-top: 1rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .7rem 1rem;
  box-shadow: 0 -4px 14px rgba(23, 32, 42, .06);
}

.facts { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1.2rem; background: var(--surface); padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; }
.code {
  background: #1e2730; color: #e4ebf0; padding: 1rem; border-radius: var(--radius);
  overflow: auto; max-height: 60vh; font-size: .85rem; white-space: pre-wrap; word-break: break-word;
}
dialog { border: 0; border-radius: var(--radius); padding: 1rem; width: min(900px, 94vw); }
dialog::backdrop { background: rgba(23, 32, 42, .5); }
dialog form { text-align: right; margin-top: .8rem; }

@media (max-width: 700px) {
  main { padding: 1rem; }
  .top { flex-wrap: wrap; gap: .6rem 1rem; }
  .bar { flex-direction: column; align-items: stretch; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
.inbox td { vertical-align: middle; }
.inbox td.c input { margin-top: 0; }
.fname { display: inline; font-weight: 600; cursor: pointer; margin-right: .5rem; }

/* Monatsrechnungen */
.cust-card { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 1rem; background: var(--surface); }
.cust-card > summary { cursor: pointer; padding: .75rem 1rem; display: flex; gap: .75rem; align-items: baseline; flex-wrap: wrap; }
.cust-card .tablewrap { padding: 0 1rem 1rem; }
.tag.new { background: var(--ok-bg); }
table.grid input.txt { width: 100%; min-width: 18rem; }
table.grid input.num { width: 6.5rem; text-align: right; }
table.grid tr.off { opacity: .45; }
input.missing { border-color: var(--err); }
.nowrap { white-space: nowrap; }
.result-item { padding: .6rem .8rem; border-left: 4px solid #1f7a5a; margin: 0 0 .6rem; background: var(--surface); }
.result-item.err { border-left-color: var(--err); }
.result-item details { margin-top: .4rem; }
th.c input { width: auto; }