/* Controlling-Vorlagen.de – Layout: "Kontoblatt". Ruhige Papierfläche, Rasterlinien wie im Tabellenblatt,
   Zahlen in Monospace mit Tabellenziffern, gelbe Eingabezellen und rote Negativwerte als Markenzeichen. */
:root {
  --paper: #f5f8f7;
  --surface: #ffffff;
  --ink: #13222b;
  --muted: #56666e;
  --grid: #d3dcd9;
  --accent: #1d6a55;
  --accent-ink: #ffffff;
  --input: #fff3c4;
  --input-ink: #1a3fd1;
  --neg: #b3261e;
  --ok-bg: #d8efe3; --ok-fg: #1e6b45;
  --warn-bg: #fbe9c2; --warn-fg: #7d5200;
  --band: #e9efed;
  --f-display: "Bahnschrift", "DIN Alternate", "D-DIN", "Roboto Condensed", "Arial Narrow", sans-serif;
  --f-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-mono: "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --r: 6px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0f1719; --surface: #152126; --ink: #e5ecea; --muted: #9aaaa8; --grid: #27363b;
    --accent: #5db897; --accent-ink: #0b1513; --input: #3a3417; --input-ink: #9db4ff; --neg: #f08a80;
    --ok-bg: #173a2b; --ok-fg: #8fdcb4; --warn-bg: #3d2f12; --warn-fg: #f2c46b; --band: #131e22;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0f1719; --surface: #152126; --ink: #e5ecea; --muted: #9aaaa8; --grid: #27363b;
  --accent: #5db897; --accent-ink: #0b1513; --input: #3a3417; --input-ink: #9db4ff; --neg: #f08a80;
  --ok-bg: #173a2b; --ok-fg: #8fdcb4; --warn-bg: #3d2f12; --warn-fg: #f2c46b; --band: #131e22;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 var(--f-body); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
h1, h2, h3, .h3 { font-family: var(--f-display); line-height: 1.15; text-wrap: balance; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 700; }
h2 { font-size: clamp(1.45rem, 2.4vw, 1.9rem); font-weight: 650; margin-top: 1.4em; }
h3, .h3 { font-size: 1.2rem; font-weight: 650; }
p { margin: 0 0 1em; }
.wrap { max-width: 1160px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.narrow { max-width: 780px; }
section { padding-block: 56px; }
.band { background: var(--band); border-block: 1px solid var(--grid); }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.lead { font-size: 1.18rem; color: var(--muted); max-width: 62ch; }
.eyebrow, .lbl { font: 600 .75rem/1.3 var(--f-body); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 .6em; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 20; }

/* Kopf */
.top { border-bottom: 1px solid var(--grid); background: var(--surface); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 14px; }
.brand { font: 700 1.25rem/1 var(--f-display); color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 10px; margin: 0; }
.mark { display: inline-grid; place-items: center; width: 30px; height: 30px; background: var(--accent); color: var(--accent-ink); border-radius: 4px; font-size: 1.05rem; }
.nav { display: flex; gap: 6px 22px; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; font-size: .95rem; padding-block: 4px; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current] { border-color: var(--accent); }
.crumbs { font-size: .85rem; color: var(--muted); padding-top: 18px; }
.crumbs a { color: var(--muted); }

/* Buttons */
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 650; padding: 11px 18px; border-radius: var(--r); border: 0; }
.btn:hover { filter: brightness(1.08); }
.btn-big { padding: 14px 22px; font-size: 1.05rem; }
.btn-off { background: var(--grid); color: var(--muted); cursor: default; }
.btn-ghost { color: var(--ink); font-weight: 600; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-block: 22px 14px; }

/* Hero */
.hero { padding-block: 64px 56px; }
.hero-in { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero-copy > * { min-width: 0; }
.ticks { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 6px 20px; color: var(--muted); font-size: .92rem; }
.ticks li::before { content: "✓ "; color: var(--accent); font-weight: 700; }

/* Tabellenblatt-Ausschnitt */
.sheet { margin: 0; background: var(--surface); border: 1px solid var(--grid); border-radius: var(--r); box-shadow: 0 18px 40px -24px rgba(19, 34, 43, .35); min-width: 0; }
.sheet-cols { display: grid; grid-template-columns: 2.1fr repeat(5, 1fr); border-bottom: 1px solid var(--grid); background: var(--band); font: 500 .72rem/1 var(--f-mono); color: var(--muted); }
.sheet-cols span { padding: 6px 8px; border-right: 1px solid var(--grid); text-align: center; }
.sheet-cols span:first-child { display: none; }
.sheet-scroll { overflow-x: auto; }
.sheet table { width: 100%; border-collapse: collapse; font: .84rem/1.3 var(--f-body); }
.sheet td.colhd { background: var(--band); color: var(--muted); font: 500 .7rem/1 var(--f-mono); text-align: center; padding: 5px; border-right: 1px solid var(--grid); }
.sheet th, .sheet td { padding: 9px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
.sheet thead th { background: var(--ink); color: var(--paper); font-weight: 600; text-align: right; }
.sheet thead th:first-child, .sheet tbody th { text-align: left; }
.sheet tbody th { font-weight: 500; }
.sheet td { text-align: right; font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.sheet tr.tot th, .sheet tr.tot td { font-weight: 700; border-bottom: 3px double var(--ink); }
.sheet figcaption { padding: 12px 14px; font-size: .84rem; color: var(--muted); }
.neg { color: var(--neg); }
.pill { display: inline-block; padding: 3px 9px; border-radius: 999px; font: 600 .76rem/1.3 var(--f-body); white-space: nowrap; }
.pill.ok { background: var(--ok-bg); color: var(--ok-fg); }
.pill.warn { background: var(--warn-bg); color: var(--warn-fg); }

/* Fragen-Raster */
.qa-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border: 1px solid var(--grid); background: var(--surface); border-radius: var(--r); }
.qa-grid p { margin: 0; padding: 18px 16px; border-right: 1px solid var(--grid); display: flex; flex-direction: column; gap: 6px; }
.qa-grid p:last-child { border-right: 0; }
.qa-grid b { font-family: var(--f-display); font-size: 1.15rem; }

/* Karten */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: var(--surface); border: 1px solid var(--grid); border-radius: var(--r); overflow: hidden; display: flex; flex-direction: column; }
.card-img { display: block; aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1px solid var(--grid); background: #fff; }
.card-img img { width: 100%; height: 100%; object-fit: cover; object-position: left top; }
.card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 a { color: var(--ink); text-decoration: none; }
.card-body h3 a:hover { color: var(--accent); }
.card-body p { margin-bottom: .6em; }
.price { font: 700 1.3rem/1.2 var(--f-display); font-variant-numeric: tabular-nums; margin-top: auto; }
.price.big { font-size: 1.7rem; margin-top: 18px; }
.card-bundle { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.card-bundle h3 a, .card-bundle .eyebrow { color: var(--paper); }
.card-bundle .muted { color: inherit; opacity: .6; }
.card-bundle .btn { align-self: flex-start; margin-top: 12px; }

/* Zweispaltig */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.two > * { min-width: 0; }
.legend { margin: 0; display: grid; gap: 12px; }
.legend div { display: grid; grid-template-columns: 130px 1fr; gap: 14px; align-items: center; }
.legend dd { margin: 0; }
.cell-in, .cell-f { display: inline-block; width: 100%; text-align: right; padding: 6px 10px; border: 1px solid var(--grid); font: .95rem var(--f-mono); font-variant-numeric: tabular-nums; background: var(--surface); }
.cell-in { background: var(--input); color: var(--input-ink); }

/* FAQ */
.faq details { border-bottom: 1px solid var(--grid); padding-block: 12px; }
.faq summary { cursor: pointer; font-weight: 650; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 600 1.2rem/1 var(--f-mono); color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 10px 0 4px; color: var(--muted); }
.list { list-style: none; padding: 0; margin: 0; }
.list li { border-bottom: 1px solid var(--grid); padding-block: 10px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* Produktseite */
.p-hero { padding-block: 28px 56px; }
.answer { font-size: 1.02rem; }
.shot { margin: 0; background: #fff; border: 1px solid var(--grid); border-radius: var(--r); overflow: hidden; }
.shot figcaption { padding: 10px 14px; font-size: .84rem; color: var(--muted); background: var(--surface); border-top: 1px solid var(--grid); }
.tbl { overflow-x: auto; }
table.def { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--grid); }
table.def th, table.def td { padding: 11px 14px; border-bottom: 1px solid var(--grid); text-align: left; vertical-align: top; }
table.def th { width: 34%; font-weight: 650; }
table.def .num { text-align: right; font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
table.def tr.tot th, table.def tr.tot td { background: var(--band); }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.checks li { padding-left: 26px; position: relative; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.steps { padding-left: 1.3em; display: grid; gap: 8px; max-width: 70ch; }
.note { margin: 0; color: var(--muted); max-width: 80ch; }

/* Ratgeber */
.posts { list-style: none; padding: 0; margin: 28px 0 0; }
.post { border-top: 1px solid var(--grid); padding-block: 22px; }
.post h2 { margin: 0 0 .4em; }
.post h2 a { color: var(--ink); text-decoration: none; }
.post h2 a:hover { color: var(--accent); }
.art { padding-block: 28px 64px; }
.art-grid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; grid-template-areas: "head head" "body toc"; gap: 8px 56px; max-width: 1080px; }
.art-head { grid-area: head; max-width: 760px; }
.toc { grid-area: toc; position: sticky; top: 20px; align-self: start; font-size: .9rem; border-left: 2px solid var(--grid); padding-left: 16px; }
.toc ol { padding-left: 1.1em; margin: 0; display: grid; gap: 6px; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--accent); }
.prose { grid-area: body; min-width: 0; max-width: 720px; }
.prose h2 { scroll-margin-top: 20px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: .35em; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: .93rem; background: var(--surface); display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--grid); padding: 8px 10px; text-align: left; }
.prose th { background: var(--band); }
.prose td { font-variant-numeric: tabular-nums; }
.prose code { font-family: var(--f-mono); font-size: .9em; background: var(--band); padding: 1px 5px; border-radius: 3px; }
.prose blockquote { margin: 1.2em 0; padding: 4px 18px; border-left: 3px solid var(--accent); color: var(--muted); }
.answer-box { background: var(--surface); border: 1px solid var(--grid); border-left: 4px solid var(--accent); padding: 16px 18px; border-radius: var(--r); margin-block: 18px 8px; }
.answer-box p:last-child { margin: 0; }
.cta-box { display: grid; grid-template-columns: 200px 1fr; gap: 20px; align-items: center; background: var(--surface); border: 1px solid var(--grid); border-radius: var(--r); padding: 16px; margin-block: 32px; }
.cta-box img { border: 1px solid var(--grid); background: #fff; }
.cta-box p { margin-bottom: .4em; }
.formula { font-family: var(--f-mono); background: var(--surface); border: 1px solid var(--grid); padding: 12px 14px; border-radius: var(--r); overflow-x: auto; }

/* Fuß */
.foot { border-top: 1px solid var(--grid); background: var(--surface); padding-block: 40px 24px; }
.foot-in { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 20px; }
.foot-in a { display: block; color: var(--ink); text-decoration: none; font-size: .93rem; padding-block: 3px; }
.foot-in a:hover { color: var(--accent); }

@media (max-width: 960px) {
  .hero-in, .two { grid-template-columns: 1fr; gap: 32px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .qa-grid { grid-template-columns: 1fr 1fr; }
  .qa-grid p { border-bottom: 1px solid var(--grid); }
  .art-grid { grid-template-columns: minmax(0, 1fr); grid-template-areas: "head" "toc" "body"; }
  .toc { position: static; margin-block: 10px 20px; }
  .foot-in { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  section { padding-block: 40px; }
  .cards, .qa-grid, .foot-in { grid-template-columns: 1fr; }
  .qa-grid p { border-right: 0; }
  .cta-box { grid-template-columns: 1fr; }
  .legend div { grid-template-columns: 110px 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }