:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1a202c;
  --muted: #64748b;
  --accent: #0e9f6e;
  --accent-text: #ffffff;
  --danger: #dc2626;
  --warn: #d97706;
  --info: #2563eb;
  --sidebar: #0f172a;
  --sidebar-text: #cbd5e1;
  /* Diagramme: validierte Palette (AC/DC kategorial, Jahresvergleich ordinal, Heatmap sequenziell) */
  --series-ac: #2a78d6;
  --series-dc: #eb6834;
  --year-current: #2a78d6;
  --year-previous: #86b6ef;
  --seq-0: #eef3f9;
  --seq-1: #cde2fb;
  --seq-2: #9ec5f4;
  --seq-3: #6da7ec;
  --seq-4: #3987e5;
  --seq-5: #256abf;
  --seq-6: #104281;
  --seq-ink-light: #0d2a4d;
  --seq-ink-dark: #ffffff;
  --good: #15803d;
  --bad: #c2410c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --surface: #131c2e;
    --border: #263247;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --sidebar: #070b14;
    --series-ac: #3987e5;
    --series-dc: #d95926;
    --year-current: #6da7ec;
    --year-previous: #1c5cab;
    --seq-0: #1a2538;
    --seq-1: #16335e;
    --seq-2: #184f95;
    --seq-3: #256abf;
    --seq-4: #3987e5;
    --seq-5: #6da7ec;
    --seq-6: #b7d3f6;
    --seq-ink-light: #e2e8f0;
    --seq-ink-dark: #0b1120;
    --good: #4ade80;
    --bad: #fb923c;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 24px 0 12px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--danger); min-height: 1.5em; }
a { color: var(--accent); }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px; }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--sidebar); color: var(--sidebar-text); padding: 20px 12px; display: flex; flex-direction: column; gap: 4px; }
.brand { font-weight: 700; font-size: 18px; color: #fff; padding: 0 8px 16px; }
#nav a { display: block; padding: 8px 12px; border-radius: 6px; color: var(--sidebar-text); text-decoration: none; }
#nav a.active, #nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidebar-foot { margin-top: auto; padding: 8px; display: flex; flex-direction: column; gap: 4px; font-size: 12px; }
.content { padding: 24px; overflow-x: auto; min-width: 0; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px 16px; }
  .brand { padding: 0 12px 0 0; }
  #nav { display: flex; flex-wrap: wrap; gap: 2px; }
  .sidebar-foot { margin: 0 0 0 auto; flex-direction: row; }
  .content { padding: 16px; }
}

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 24px; font-weight: 650; margin-top: 4px; }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar .spacer { flex: 1; }

table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: color-mix(in srgb, var(--surface) 92%, var(--text)); }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: color-mix(in srgb, var(--surface) 94%, var(--accent)); }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--border); color: var(--text); white-space: nowrap; }
.badge.ok { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); }
.badge.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge.err { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }
.badge.info { background: color-mix(in srgb, var(--info) 18%, transparent); color: var(--info); }

a.btn { text-decoration: none; display: inline-block; }
button, .btn { font: inherit; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; }
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.danger { color: var(--danger); }
button.link { border: 0; background: none; color: inherit; padding: 0; text-align: left; text-decoration: underline; }
button:disabled { opacity: .5; cursor: default; }

label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
input, select { font: inherit; padding: 7px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.form { display: grid; gap: 12px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.check { flex-direction: row; align-items: center; gap: 8px; }

dialog { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); padding: 20px; width: min(560px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(0,0,0,.45); }

.toast { position: fixed; bottom: 20px; right: 20px; background: var(--sidebar); color: #fff; padding: 10px 16px; border-radius: 8px; max-width: min(420px, calc(100vw - 40px)); box-shadow: 0 6px 20px rgba(0,0,0,.25); z-index: 10; }
.toast.err { background: var(--danger); }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; overflow-wrap: anywhere; }
.connectors { display: flex; gap: 6px; flex-wrap: wrap; }
.log { max-height: 420px; overflow: auto; }
.log td { font-family: ui-monospace, monospace; font-size: 12px; }
.secret { padding: 12px; background: var(--bg); border: 1px dashed var(--warn); border-radius: 8px; font-family: ui-monospace, monospace; word-break: break-all; }
svg.chart { width: 100%; height: 160px; }

@media print {
  .sidebar, .no-print { display: none !important; }
  .shell { display: block; }
  .card, table { border: 0; }
}

/* ---------------------------------------------------------------- Insights & Berichte */
.badge.ac { background: color-mix(in srgb, var(--series-ac) 16%, transparent); color: var(--series-ac); }
.badge.dc { background: color-mix(in srgb, var(--series-dc) 16%, transparent); color: var(--series-dc); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.small { font-size: 12px; }

.ins-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; margin-bottom: 12px; }
.ins-head h1 { margin: 0; }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tabs button { border: 0; border-radius: 0; background: none; padding: 10px 14px; color: var(--muted); font-weight: 550; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs button:hover { color: var(--text); border-color: var(--border); }
.tabs button.active { color: var(--info); border-bottom-color: var(--info); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 8px; }
.pill select { appearance: none; -webkit-appearance: none; border-radius: 999px; padding: 7px 34px 7px 14px; font-weight: 550;
  background: var(--sidebar) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23cbd5e1' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 14px center;
  color: #f1f5f9; border-color: var(--sidebar); max-width: 260px; }
.pill-check { color: var(--text); font-size: 13px; }
.custom-range { display: inline-flex; align-items: center; gap: 6px; }
.inline-select { border: 0; background: transparent; font-weight: 600; color: var(--text); padding: 2px 4px; border-radius: 4px; }
.inline-select:hover { background: var(--bg); }

.ins-body h2 { margin-top: 28px; }
.ins-body > h2:first-child { margin-top: 8px; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.kpi-grid.small { margin-top: 12px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.kpi-label { color: var(--muted); font-size: 13px; font-weight: 550; display: flex; align-items: center; gap: 6px; }
.kpi-value { font-size: 30px; font-weight: 700; line-height: 1.15; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.kpi-value small { font-size: 15px; font-weight: 600; color: var(--muted); margin-left: 4px; }
.kpi-grid.small .kpi { padding: 12px 14px; }
.kpi-grid.small .kpi-value { font-size: 20px; }
.delta { font-size: 12px; font-weight: 600; }
.delta.good { color: var(--good); }
.delta.bad { color: var(--bad); }

.ins-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 12px; }
.ins-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px 16px; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.ins-card.wide { grid-column: 1 / -1; }
.ins-card > header { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; min-height: 28px; }
.ins-card h3 { font-size: 14px; font-weight: 600; margin: 0; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.ins-card header .spacer { flex: 1; }
.info { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border); color: var(--muted); font: italic 600 11px/1 Georgia, serif; cursor: help; }
.icon-btn { border: 0; background: none; padding: 4px; color: var(--muted); border-radius: 6px; display: inline-grid; place-items: center; }
.icon-btn:hover { color: var(--text); background: var(--bg); }

.chart { position: relative; width: 100%; min-width: 0; }
.chart svg { display: block; overflow: visible; }
.chart .axis text { font-size: 11px; fill: var(--muted); font-variant-numeric: tabular-nums; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.chart .baseline { stroke: color-mix(in srgb, var(--muted) 45%, transparent); stroke-width: 1; }
.chart .marker { stroke: var(--surface); stroke-width: 2; }
.chart .crosshair { stroke: var(--muted); stroke-width: 1; }
.chart .hover-band { fill: color-mix(in srgb, var(--text) 6%, transparent); }
.chart-tip { position: absolute; z-index: 5; pointer-events: none; background: var(--surface); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 12px; box-shadow: 0 6px 18px rgba(15, 23, 42, .14); min-width: 150px; }
.chart-tip strong { display: block; margin-bottom: 4px; }
.chart-tip div { display: flex; align-items: center; gap: 6px; }
.chart-tip b { margin-left: auto; padding-left: 12px; font-variant-numeric: tabular-nums; }
.chart-tip .tip-total { border-top: 1px solid var(--border); margin-top: 4px; padding-top: 4px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex: none; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 12px; color: var(--muted); }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }

.split { display: flex; gap: 2px; height: 34px; border-radius: 6px; overflow: hidden; }
.split-seg { display: grid; place-items: center; min-width: 4px; }
.split-seg span { font-size: 12px; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; }
.type-figures { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.type-figures strong { display: block; font-size: 28px; line-height: 1.15; font-variant-numeric: tabular-nums; }
.type-figures span { color: var(--muted); font-size: 13px; }

.rank { display: grid; gap: 10px; }
.rank-row { display: grid; grid-template-columns: minmax(0, 2fr) minmax(80px, 3fr) auto; gap: 12px; align-items: center; }
.rank-label { min-width: 0; overflow-wrap: anywhere; font-size: 13px; }
.rank-label .muted { font-size: 12px; display: block; }
.chart-tip em { color: var(--muted); font-style: normal; margin-left: 4px; }
.rank-bar { height: 10px; background: var(--seq-0); border-radius: 0 4px 4px 0; }
.rank-bar span { display: block; height: 100%; background: var(--series-ac); border-radius: 0 4px 4px 0; }
.rank-value { font-variant-numeric: tabular-nums; font-weight: 600; font-size: 13px; white-space: nowrap; }
@media (max-width: 560px) { .rank-row { grid-template-columns: 1fr auto; } .rank-bar { grid-column: 1 / -1; grid-row: 2; } }

.scale { display: flex; align-items: center; gap: 2px; font-size: 11px; color: var(--muted); justify-content: flex-end; }
.scale span { margin: 0 6px; }
.scale i { width: 22px; height: 10px; border-radius: 2px; display: inline-block; }

.bd-table th, .bd-table td { white-space: nowrap; }
.bd-table td:first-child { white-space: normal; min-width: 180px; font-weight: 550; }
.heat { display: inline-block; min-width: 44px; padding: 2px 9px; border-radius: 999px; font-variant-numeric: tabular-nums; font-size: 12px; font-weight: 600; text-align: center; }
.heat.lvl-0 { background: transparent; color: var(--muted); }
.heat.lvl-1 { background: var(--seq-1); color: var(--seq-ink-light); }
.heat.lvl-2 { background: var(--seq-2); color: var(--seq-ink-light); }
.heat.lvl-3 { background: var(--seq-3); color: var(--seq-ink-light); }
.heat.lvl-4 { background: var(--seq-4); color: var(--seq-ink-dark); }
.heat.lvl-5 { background: var(--seq-5); color: var(--seq-ink-dark); }
.heat.lvl-6 { background: var(--seq-6); color: var(--seq-ink-dark); }

.report { margin-top: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px; display: grid; gap: 16px; }
.report-head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-bottom: 2px solid var(--text); padding-bottom: 12px; }
.report-head h2 { margin: 2px 0 0; font-size: 22px; }
.report-head > div:last-child { text-align: right; font-size: 13px; }
.report h3 { margin: 4px 0 0; font-size: 15px; }
.report-table { border: 0; }
.report-table th, .report-table td { padding: 6px 8px; }
.ins-foot { margin-top: 24px; }

@media print {
  body.print-report .content > *:not(.ins-body), body.print-report .ins-body > *:not(.report), body.print-report .demo-bar { display: none !important; }
  body.print-report .report { border: 0; padding: 0; }
  .chart-tip { display: none !important; }
}
@media (max-width: 760px) {
  .kpi-value { font-size: 24px; }
  .pill select { max-width: 100%; }
  .type-figures { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- Roaming */
.issues { margin: 0; padding-left: 18px; color: var(--warn); font-size: 13px; }
.steps { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.steps li { line-height: 1.45; }
.actions-cell { display: flex; flex-wrap: wrap; gap: 4px; justify-content: flex-end; }
.secret-box { margin-bottom: 16px; display: grid; gap: 8px; border-color: var(--warn); }
.fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px 12px; display: grid; gap: 10px; margin: 0; }
.fieldset legend { padding: 0 6px; font-size: 13px; color: var(--muted); font-weight: 600; }