:root {
  --bg: #f4f5f7; --card: #fff; --text: #1f2937; --muted: #6b7280; --line: #e5e7eb;
  --accent: #2563eb; --accent-text: #fff; --pos: #059669; --neg: #dc2626; --input: #fff;
  --inc: #10b981; --exp: #f87171; --notice: #fef9c3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111318; --card: #1b1e25; --text: #e5e7eb; --muted: #9ca3af; --line: #2d313b;
    --accent: #3b82f6; --pos: #34d399; --neg: #f87171; --input: #12141a; --notice: #3a3410;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
.stack > button { justify-self: start; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
h3 { margin: 0 0 .8rem; font-size: 1.05rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1rem 0; }
code, pre { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .85em; }
pre { background: var(--bg); padding: .7rem; border-radius: 6px; overflow-x: auto; }

header { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; padding: .6rem 1rem; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; }
header nav { display: flex; gap: .2rem; flex-wrap: wrap; flex: 1; }
header nav a { padding: .35rem .7rem; border-radius: 6px; color: var(--text); }
header nav a.active, header nav a:hover { background: var(--bg); color: var(--accent); }
.user { white-space: nowrap; }
main { max-width: 1200px; margin: 0 auto; padding: 1rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem; margin-bottom: 1rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 0 1rem; }
.stat .big { font-size: 1.6rem; font-weight: 700; margin-top: .2rem; }
.narrow { max-width: 460px; margin: 2rem auto; }
.stack { display: grid; gap: .7rem; }
.toolbar { display: flex; align-items: flex-end; gap: .6rem; margin-bottom: 1rem; }
.toolbar.wrap { flex-wrap: wrap; }
.card.toolbar { margin-bottom: 1rem; }
.grow { flex: 1; min-width: 140px; }
.form-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; }
.form-grid .full { grid-column: 1 / -1; }
.form-grid .span2 { grid-column: span 2; }
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr 1fr; } .grid2 { grid-template-columns: 1fr; } }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }

label { display: flex; flex-direction: column; gap: .2rem; font-size: .85rem; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: .5rem; color: var(--text); }
input, select, textarea, button, .btn {
  font: inherit; color: var(--text); background: var(--input); border: 1px solid var(--line); border-radius: 6px; padding: .45rem .6rem;
}
input[type=color] { padding: 0; width: 2.2rem; height: 2rem; }
input[type=checkbox] { width: 1rem; height: 1rem; }
button, .btn { cursor: pointer; background: var(--card); display: inline-block; }
button:hover, .btn:hover { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: wait; }
.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.danger { color: var(--neg); }
button.danger:not(.link) { border-color: var(--neg); }
.link { background: none; border: 0; padding: .1rem .2rem; color: var(--accent); }
.link.danger { color: var(--neg); }

.muted { color: var(--muted); }
.small { font-size: .82rem; }
.center { text-align: center; padding: 2rem; }
.r { text-align: right; }
.nowrap { white-space: nowrap; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.badge { display: inline-block; padding: .05rem .5rem; border-radius: 99px; background: var(--line); font-size: .78rem; }
.badge.ok { background: var(--pos); color: #fff; }
.notice { background: var(--notice); padding: .8rem; border-radius: 8px; margin-top: .8rem; }
.dot { display: inline-block; width: .7rem; height: .7rem; border-radius: 50%; margin-right: .4rem; vertical-align: -1px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .8rem; color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.table-wrap.scroll { max-height: 420px; overflow-y: auto; }
.sums { display: flex; gap: 1.2rem; flex-wrap: wrap; margin-bottom: .6rem; }

/* Diagramm */
.chart { width: 100%; height: 220px; }
.chart text { font-size: 10px; fill: var(--muted); }
.chart .grid line { stroke: var(--line); }
.bar-inc { fill: var(--inc); }
.bar-exp { fill: var(--exp); }
.legend { font-size: .82rem; color: var(--muted); display: flex; align-items: center; gap: .4rem; }
.sw { display: inline-block; width: .8rem; height: .8rem; border-radius: 2px; margin-left: .6rem; }
.sw.inc { background: var(--inc); } .sw.exp { background: var(--exp); }

/* Kategorie-Aufschlüsselung */
.bd-row { display: grid; grid-template-columns: auto minmax(90px, 1.3fr) 2fr auto 3rem; align-items: center; gap: .5rem; padding: .3rem 0 .3rem calc(var(--d, 0) * 1.1rem); }
.bd-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bd-bar { height: .55rem; background: var(--bg); border-radius: 4px; overflow: hidden; }
.bd-bar i { display: block; height: 100%; border-radius: 4px; }
.bd-val { text-align: right; font-variant-numeric: tabular-nums; }
.bd-pct { text-align: right; font-size: .8rem; }
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }
details > summary .bd-name::before { content: '▸ '; color: var(--muted); }
details[open] > summary .bd-name::before { content: '▾ '; }

/* Kategoriebaum */
.tree, .tree ul { list-style: none; margin: 0; padding: 0; }
.tree ul { padding-left: 1.3rem; border-left: 1px dashed var(--line); margin-left: .3rem; }
.cat-row { display: flex; align-items: center; gap: .4rem; padding: .3rem 0; flex-wrap: wrap; }
.cat-row select { padding: .15rem .3rem; font-size: .8rem; max-width: 160px; }

.qr { width: 220px; max-width: 100%; background: #fff; padding: 4px; border-radius: 6px; margin: .5rem 0; }
.qr svg { width: 100%; height: auto; display: block; }
.apidoc { margin-top: 1rem; }
.apidoc summary { color: var(--accent); }

.login { max-width: 380px; margin: 8vh auto; padding: 0 1rem; }
.login h1 { text-align: center; font-size: 1.5rem; }
.login form { display: grid; gap: .8rem; }

#toast { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); background: #111827; color: #fff; padding: .6rem 1rem; border-radius: 8px; z-index: 50; max-width: 90vw; box-shadow: 0 4px 18px rgba(0,0,0,.25); }
#toast.err { background: var(--neg); }