/* Merkuron-Handbuch -- heller Stil des Dashboards.
 * Variablen: frontend/apps/pos-web/src/index.css, Block `.light`.
 * Schriften: Manrope (Ueberschriften), Inter (Fliesstext), selbst gehostet.
 */
@font-face { font-family: "Manrope"; font-weight: 200 800; font-display: swap; src: url(fonts/manrope.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 100 900; font-display: swap; src: url(fonts/inter.woff2) format("woff2"); }

:root,
.light {
  --background: #f5f7fa;
  --primary: #006d77;
  --primary-container: #82d3de;
  --on-primary: #ffffff;
  --on-primary-container: #00363c;
  --surface: #ffffff;
  --surface-container: #f5f7fa;
  --surface-container-high: #e0e3e8;
  --on-surface: #101418;
  --on-surface-variant: #3f484a;
  --outline: #70797b;
  --outline-variant: #dce4e6;
  --tertiary: #8e5426;
  --error: #ba1a1a;
  --hb-tint: #e8f5f7;
  --hb-amber: #f59e0b;
  --tint: #e8f5f7;           /* primary-container, stark aufgehellt: Flaechen */
  --kopf-bg: rgba(255, 255, 255, .92);
  --font-headline: "Manrope", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --kopf: 3.75rem;
  color-scheme: light;
}

.dark {
  --background: #0d1113;
  --primary: #82d3de;
  --primary-container: #004f56;
  --on-primary: #00363c;
  --on-primary-container: #82d3de;
  --surface: #161b1e;
  --surface-container: #1b2124;
  --surface-container-high: #242c30;
  --on-surface: #eceae3;
  --on-surface-variant: #a8b0b2;
  --outline: #70797b;
  --outline-variant: #283236;
  --tertiary: #ffb783;
  --error: #ffb4ab;
  --hb-tint: #00363c;
  --hb-amber: #f59e0b;
  --tint: #00363c;
  --kopf-bg: rgba(22, 27, 30, .92);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) {
    --background: #0d1113;
    --primary: #82d3de;
    --primary-container: #004f56;
    --on-primary: #00363c;
    --on-primary-container: #82d3de;
    --surface: #161b1e;
    --surface-container: #1b2124;
    --surface-container-high: #242c30;
    --on-surface: #eceae3;
    --on-surface-variant: #a8b0b2;
    --outline: #70797b;
    --outline-variant: #283236;
    --tertiary: #ffb783;
    --error: #ffb4ab;
    --hb-tint: #00363c;
    --hb-amber: #f59e0b;
    --tint: #00363c;
    --kopf-bg: rgba(22, 27, 30, .92);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--kopf) + 1rem); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--background); color: var(--on-surface);
  font: 400 1rem/1.7 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--on-primary-container); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.nur-leser { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---- Kopfleiste ------------------------------------------------------- */
.kopf {
  position: sticky; top: 0; z-index: 30; height: var(--kopf);
  display: flex; align-items: center; gap: 1rem; padding: 0 1.25rem;
  background: var(--kopf-bg); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-variant);
}
.marke-logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--on-surface); font: 800 1.05rem var(--font-headline); letter-spacing: -.01em; }
.marke-logo img { width: 28px; height: 28px; }
.marke-logo span { color: var(--on-surface-variant); font-weight: 600; }
.zur-startseite { display: inline-flex; align-items: center; font: 600 .85rem var(--font-headline); text-decoration: none; color: var(--on-surface-variant); padding: .35rem .6rem; border-radius: 8px; white-space: nowrap; transition: color .15s, background .15s; }
.zur-startseite:hover { color: var(--primary); background: var(--tint); }
.demo-knopf { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 0 .9rem; border-radius: 10px; background: var(--primary); color: var(--on-primary); font: 700 .82rem var(--font-headline); text-decoration: none; white-space: nowrap; letter-spacing: .02em; transition: opacity .15s; }
.demo-knopf:hover { opacity: .9; color: var(--on-primary); }
.handbuch__theme { display: inline-flex; align-items: center; gap: .35rem; min-height: 44px; min-width: 44px; padding: 0 .65rem; border-radius: 10px; border: 1px solid var(--outline-variant); background: var(--surface); color: var(--on-surface-variant); font: 600 .78rem var(--font-headline); cursor: pointer; white-space: nowrap; transition: color .15s, border-color .15s; }
.handbuch__theme:hover { color: var(--on-surface); border-color: var(--primary); }
.handbuch__theme-icon { display: inline-flex; align-items: center; justify-content: center; }
.icon-sun { display: none; }
.icon-moon { display: inline-block; }
.dark .icon-sun, :root:not(.light) .icon-sun { display: inline-block; }
.dark .icon-moon, :root:not(.light) .icon-moon { display: none; }
.light .icon-sun { display: none !important; }
.light .icon-moon { display: inline-block !important; }
@media (prefers-color-scheme: light) {
  :root:not(.dark) .icon-sun { display: none; }
  :root:not(.dark) .icon-moon { display: inline-block; }
}
.nav-extra { padding: .85rem 1rem; display: flex; flex-direction: column; gap: .5rem; border-bottom: 1px solid var(--outline-variant); margin-bottom: .5rem; }
.nav-back-link { font: 600 .88rem var(--font-headline); text-decoration: none; color: var(--on-surface-variant); }
.nav-back-link:hover { color: var(--primary); }
.nav-demo-link { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; border-radius: 8px; background: var(--primary); color: var(--on-primary); font: 700 .85rem var(--font-headline); text-decoration: none; }
.nav-demo-link:hover { opacity: .9; }
.menue-knopf { display: none; border: 1px solid var(--outline-variant); background: var(--surface); border-radius: 10px; width: 44px; height: 44px; min-width: 44px; min-height: 44px; font: inherit; color: var(--on-surface); cursor: pointer; }
.suche { position: relative; margin-left: auto; width: min(26rem, 100%); }
.suche input {
  width: 100%; height: 40px; padding: 0 .9rem 0 2.4rem; border-radius: 12px;
  border: 1px solid var(--outline-variant); background: var(--surface-container) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2370797b' stroke-width='2.2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") .8rem 50% no-repeat;
  font: 500 .92rem var(--font-body); color: var(--on-surface);
}
.suche input:focus { outline: none; border-color: var(--primary); background-color: var(--surface); box-shadow: 0 0 0 3px rgba(0, 109, 119, .15); }
.treffer {
  position: absolute; right: 0; left: 0; top: calc(100% + .4rem); max-height: min(70vh, 32rem); overflow-y: auto;
  background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 14px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, .24), 0 0 0 1px var(--outline-variant); padding: .35rem; list-style: none; margin: 0;
  overscroll-behavior: contain;
  mask-image: linear-gradient(to bottom, black calc(100% - 20px), transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black calc(100% - 20px), transparent 100%);
}
.treffer[hidden] { display: none; }
.treffer a { display: block; padding: .6rem .75rem; border-radius: 10px; text-decoration: none; color: var(--on-surface); }
.treffer a:hover, .treffer a:focus { background: var(--tint); }
.treffer b { display: block; font: 700 .92rem var(--font-headline); }
.treffer small { display: block; color: var(--outline); font-size: .75rem; margin-top: .05rem; }
.treffer span { display: block; color: var(--on-surface-variant); font-size: .82rem; line-height: 1.45; margin-top: .2rem; }
.treffer mark { background: rgba(130, 211, 222, .55); color: inherit; border-radius: 3px; padding: 0 1px; }
.treffer .leer { padding: .9rem .75rem; color: var(--on-surface-variant); font-size: .9rem; }

/* ---- Raster ----------------------------------------------------------- */
.raster { display: grid; grid-template-columns: 17rem minmax(0, 1fr); max-width: 90rem; margin: 0 auto; }
.raster.mit-toc { grid-template-columns: 17rem minmax(0, 1fr) 14rem; }
.nav {
  position: sticky; top: var(--kopf); align-self: start; height: calc(100vh - var(--kopf)); overflow-y: auto;
  padding: 1.5rem 1rem 3rem 1.25rem; border-right: 1px solid var(--outline-variant);
  font-size: .88rem; scrollbar-width: thin;
}
.nav h2 { font: 800 .78rem var(--font-headline); letter-spacing: .02em; color: var(--outline); margin: 1.4rem 0 .4rem .6rem; }
.nav h2:first-child { margin-top: 0; }
.nav ul { list-style: none; margin: 0; padding: 0; }
.nav a { display: flex; gap: .55rem; align-items: baseline; padding: .38rem .6rem; border-radius: 9px; color: var(--on-surface-variant); text-decoration: none; line-height: 1.35; }
.nav a:hover { background: var(--surface-container-high); color: var(--on-surface); }
.nav a[aria-current="page"] { background: var(--tint); color: var(--on-primary-container); font-weight: 650; }
.nav .nr { flex: none; min-width: 2rem; font: 700 .72rem var(--font-headline); color: var(--outline); }
.nav a[aria-current="page"] .nr { color: var(--primary); }

main { padding: 2.5rem clamp(1.1rem, 4vw, 3.5rem) 4rem; min-width: 0; }
.seite { max-width: 60rem; margin: 0; }
/* Text bleibt in lesbarer Zeilenlaenge; Abbildungen und Tabellen duerfen breiter sein. */
.seite > :not(.abbildung):not(.tabelle):not(pre):not(.gruppe) { max-width: 46rem; }
.start { max-width: none !important; }
.toc { position: sticky; top: var(--kopf); align-self: start; padding: 2.7rem 1.25rem 2rem 0; font-size: .82rem; max-height: calc(100vh - var(--kopf)); overflow: auto; }
.toc p { font: 800 .78rem var(--font-headline); color: var(--outline); margin: 0 0 .5rem; }
.toc ul { list-style: none; margin: 0; padding: 0 0 0 .8rem; border-left: 2px solid var(--outline-variant); }
.toc a { display: block; padding: .28rem 0 .28rem .7rem; margin-left: calc(-.8rem - 2px); border-left: 2px solid transparent; color: var(--on-surface-variant); text-decoration: none; line-height: 1.35; }
.toc a:hover { color: var(--on-surface); }
.toc a.aktiv { border-left-color: var(--primary); color: var(--primary); font-weight: 650; }

/* ---- Kapitelkopf ------------------------------------------------------ */
.kapitelkopf { display: flex; gap: 1.1rem; align-items: flex-start; margin-bottom: 2rem; }
.kapitelnr {
  flex: none; min-width: 3.6rem; height: 3.6rem; padding: 0 .6rem; display: grid; place-items: center;
  border-radius: 16px; background: var(--primary-container); color: var(--on-primary-container);
  font: 800 1.45rem var(--font-headline); letter-spacing: -.02em;
}
h1 { font: 800 clamp(1.9rem, 4.4vw, 2.6rem)/1.12 var(--font-headline); letter-spacing: -.025em; margin: 0; }
.untertitel { margin: .45rem 0 0; color: var(--on-surface-variant); font-size: 1.05rem; line-height: 1.5; }

/* ---- Text ------------------------------------------------------------- */
.seite h2 { font: 800 1.55rem/1.2 var(--font-headline); letter-spacing: -.018em; margin: 3rem 0 .9rem; padding-top: 1.6rem; border-top: 1px solid var(--outline-variant); }
.seite h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 2rem; }
.seite h3 { font: 800 1.18rem/1.3 var(--font-headline); letter-spacing: -.01em; margin: 2.2rem 0 .6rem; }
.seite h4, .seite h5, .seite h6 { font: 700 1rem var(--font-headline); margin: 1.6rem 0 .4rem; color: var(--on-surface); }
.anker { margin-left: .5rem; text-decoration: none; color: var(--outline-variant); font-weight: 600; opacity: 0; transition: opacity .15s; }
:is(h2, h3, h4):hover .anker, .anker:focus { opacity: 1; color: var(--primary); }
p { margin: 0 0 1rem; }
.seite strong { font-weight: 650; }
code { font: 500 .88em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--surface-container-high); padding: .12em .4em; border-radius: 6px; overflow-wrap: anywhere; }
pre { background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 12px; padding: 1rem 1.1rem; overflow: auto; line-height: 1.55; }
pre code { background: none; padding: 0; font-size: .85rem; }
hr { border: 0; border-top: 1px solid var(--outline-variant); margin: 2rem 0; }
a.verweis { font-weight: 650; text-decoration: none; background: var(--tint); padding: .02em .35em; border-radius: 6px; }
a.verweis:hover { background: var(--primary-container); }

ul, ol { margin: 0 0 1.1rem; padding-left: 1.4rem; }
li { margin: .3rem 0; padding-left: .2rem; }
li::marker { color: var(--primary); }
li > ul, li > ol { margin: .35rem 0 .5rem; }
/* nummerierte Schritte: Zaehler als Kreis, wie die Markierungen in den Abbildungen */
ol { list-style: none; counter-reset: schritt; padding-left: 0; }
ol > li { counter-increment: schritt; position: relative; padding-left: 2.5rem; margin: .65rem 0; }
ol > li::before {
  content: counter(schritt); position: absolute; left: 0; top: .12rem; width: 1.65rem; height: 1.65rem; border-radius: 50%;
  display: grid; place-items: center; background: var(--tint); color: var(--primary); border: 1px solid var(--primary-container);
  font: 800 .78rem var(--font-headline);
}
ol ol > li::before { background: transparent; }

blockquote { margin: 1.2rem 0; padding: .1rem 1.1rem; border-left: 3px solid var(--outline-variant); color: var(--on-surface-variant); }
.hinweis { margin: 1.4rem 0; padding: .9rem 1.15rem .3rem; border-radius: 14px; border: 1px solid var(--primary-container); background: var(--tint); }
.hinweis-titel { font: 800 .9rem var(--font-headline); margin: 0 0 .35rem; color: var(--on-primary-container); }
.hinweis-important { background: #dff1f4; border-color: var(--primary); }
.hinweis-warning { background: #fbf1e9; border-color: #e3c3a8; }
.hinweis-warning .hinweis-titel { color: var(--tertiary); }
.hinweis-caution { background: #fdeeed; border-color: #efb3ad; }
.hinweis-caution .hinweis-titel { color: var(--error); }

.tabelle { overflow-x: auto; margin: 1.3rem 0; border: 1px solid var(--outline-variant); border-radius: 14px; background: var(--surface); }
table { font-variant-numeric: tabular-nums; border-collapse: collapse; width: 100%; font-size: .9rem; line-height: 1.5; }
th, td { text-align: left; vertical-align: top; padding: .65rem .85rem; border-bottom: 1px solid var(--outline-variant); }
th { background: var(--surface-container); font: 700 .8rem var(--font-headline); color: var(--on-surface-variant); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }

/* ---- Abbildungen ------------------------------------------------------ */
.abbildung { margin: 1.8rem 0 1.6rem; padding: 1rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 18px; box-shadow: 0 1px 0 rgba(16, 20, 24, .03); }
.abbildung a { display: block; cursor: zoom-in; }
.abbildung img, .abbildung svg { display: block; width: 100%; height: auto; border-radius: 10px; }
.abbildung figcaption { margin: .8rem .2rem .1rem; font-size: .84rem; line-height: 1.5; color: var(--on-surface-variant); }
.marke {
  display: inline-grid; place-items: center; width: 1.35em; height: 1.35em; border-radius: 50%; margin-right: .15em;
  background: var(--primary); color: var(--on-primary); font: 800 .78em var(--font-headline); vertical-align: .06em;
}

/* ---- Blaettern -------------------------------------------------------- */
.blaettern { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--outline-variant); }
.blaettern a { display: block; padding: .9rem 1.1rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 14px; text-decoration: none; color: var(--on-surface); }
.blaettern a:hover { border-color: var(--primary); }
.blaettern small { display: block; color: var(--outline); font-size: .75rem; }
.blaettern b { font: 700 .98rem var(--font-headline); }
.blaettern a:last-child { text-align: right; }
.fuss { margin-top: 2.5rem; font-size: .8rem; color: var(--outline); }
.fuss a { color: inherit; }

/* ---- Startseite -------------------------------------------------------- */
.start h1 { font-size: clamp(2.2rem, 6vw, 3.4rem); }
.start .einleitung { max-width: 38rem; font-size: 1.12rem; line-height: 1.6; color: var(--on-surface-variant); margin: 1rem 0 2.5rem; }
.gruppe { margin: 0 0 2.6rem; }
.gruppe > h2 { font: 800 1.25rem var(--font-headline); letter-spacing: -.01em; margin: 0 0 .25rem; }
.gruppe > p { margin: 0 0 1rem; color: var(--on-surface-variant); font-size: .92rem; }
.karten { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: .75rem; }
.karten li { margin: 0; padding: 0; }
.karten a { display: flex; gap: .85rem; align-items: flex-start; height: 100%; padding: .85rem 1rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 14px; text-decoration: none; color: var(--on-surface); transition: border-color .15s, box-shadow .15s; }
.karten a:hover { border-color: var(--primary); box-shadow: 0 6px 18px rgba(0, 109, 119, .08); }
.karten .nr { flex: none; min-width: 2.5rem; height: 2.5rem; padding: 0 .4rem; display: grid; place-items: center; border-radius: 11px; background: var(--tint); color: var(--primary); font: 800 .85rem var(--font-headline); }
.karten b { display: block; font: 700 .95rem/1.3 var(--font-headline); }
.karten span { display: block; margin-top: .15rem; font-size: .8rem; line-height: 1.4; color: var(--on-surface-variant); }

/* ---- Handy ------------------------------------------------------------ */
@media (max-width: 1180px) { .raster.mit-toc { grid-template-columns: 17rem minmax(0, 1fr); } .toc { display: none; } }
@media (max-width: 860px) {
  .raster, .raster.mit-toc { grid-template-columns: minmax(0, 1fr); }
  .menue-knopf { display: inline-grid; place-items: center; }
  .marke-logo span { display: none; }
  .zur-startseite { display: none; }
  .demo-knopf { display: none; }
  .handbuch__theme-text { display: none; }
  .handbuch__theme { min-width: 44px; min-height: 44px; padding: 0 .4rem; justify-content: center; }
  .suche { position: static; }
  .treffer {
    position: fixed;
    top: calc(var(--kopf) + .3rem);
    left: .5rem;
    right: .5rem;
    width: auto;
    max-height: calc(100vh - var(--kopf) - 1.5rem);
    border-radius: 12px;
    z-index: 50;
  }
  .nav { position: fixed; z-index: 40; top: var(--kopf); left: 0; width: min(20rem, 88vw); background: var(--surface); transform: translateX(-102%); transition: transform .2s; box-shadow: 0 0 40px rgba(16, 20, 24, .18); border-right: 0; }
  body.menue-offen .nav { transform: none; }
  body.menue-offen::after { content: ""; position: fixed; inset: var(--kopf) 0 0 0; background: rgba(16, 20, 24, .3); z-index: 35; }
  .kopf { padding: 0 .75rem; gap: .6rem; }
  main { padding-top: 1.6rem; }
  .kapitelnr { min-width: 3rem; height: 3rem; font-size: 1.15rem; border-radius: 13px; }
  .abbildung { margin-inline: -.5rem; padding: .5rem; border-radius: 14px; }
  .abbildung a { overflow-x: auto; }
  .abbildung { overflow-x: auto; }
  .abbildung img, .abbildung svg { min-width: 640px; }
  .blaettern { grid-template-columns: 1fr; }
  .blaettern a:last-child { text-align: left; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* ---- Druck ------------------------------------------------------------ */
@media print {
  @page { size: A4; margin: 18mm 16mm; }
  body { background: #fff; font-size: 10.5pt; line-height: 1.55; }
  .kopf, .nav, .toc, .blaettern, .anker, .menue-knopf { display: none !important; }
  .raster, .raster.mit-toc { display: block; max-width: none; }
  main { padding: 0; }
  .seite { max-width: none; }
  .seite h2 { break-after: avoid; border-top: 0; padding-top: 0; margin-top: 1.6rem; }
  h3, h4 { break-after: avoid; }
  .abbildung, .tabelle, .hinweis, pre, tr { break-inside: avoid; }
  .abbildung { box-shadow: none; border-color: #bbb; }
  a { color: inherit; text-decoration: none; }
  a.verweis { background: none; padding: 0; font-weight: 600; }
  .fuss::before { content: "Merkuron-Handbuch, merkuron.de/handbuch"; display: block; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}