/* Gemeinsame Landing-Styles (Startseite, /funktionen/, /wissen/).
   Wird NACH dem Inline-<style> der Seite geladen und gewinnt daher bei
   gleicher Spezifität. Seitenspezifisches bleibt inline. */

/* ── Header ─────────────────────────────────────────────── */
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav .brand { margin-right: auto; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: inherit; text-decoration: none; font-weight: 500; font-size: 15px; opacity: .85; }
.nav-links a:hover, .nav-links a[aria-current="page"] { opacity: 1; color: var(--c-accent); }
.nav-links a[aria-current="page"] { font-weight: 600; }
.site-nav .nav-cta {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  background: var(--c-accent); color: #fff; text-decoration: none;
  font-weight: 600; font-size: 15px; padding: 9px 16px; border-radius: 10px;
}
.site-nav .nav-cta:hover { background: var(--c-accent-hover); color: #fff; }
.nav-menu { display: none; position: relative; }
/* Startseite stylt details/summary global für die FAQ: hier neutralisieren */
details.nav-menu { padding: 0; margin: 0; border: 0; border-radius: 0; background: none; box-shadow: none; }
details.nav-menu summary { display: block; font-weight: 400; color: inherit; }
details.nav-menu summary::after { content: none; }
.nav-menu summary {
  list-style: none; cursor: pointer; font-size: 22px; line-height: 1;
  padding: 6px 8px; border-radius: 8px;
}
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu-panel {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 20;
  display: flex; flex-direction: column; min-width: 180px; padding: 6px;
  background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, .14);
}
.nav-menu-panel a { padding: 10px 12px; border-radius: 8px; color: #0f172a; text-decoration: none; font-weight: 500; }
.nav-menu-panel a:hover { background: var(--c-accent-soft); }

@media (max-width: 767px) {
  .nav-links { display: none; }
  .nav-menu { display: block; }
  .site-nav { gap: 10px; }
  .site-nav .nav-cta { padding: 8px 12px; font-size: 14px; }
}
@media (max-width: 420px) {
  .site-nav { gap: 6px; }
  .site-nav .brand { gap: 7px; font-size: .85rem; letter-spacing: 0; }
  .site-nav .brand-mark { width: 24px; height: 24px; }
  .site-nav .nav-cta { padding: 7px 10px; font-size: 13px; }
  .nav-menu summary { padding: 4px 6px; }
}

/* ── Feature-Zeilen (Ausschnitt | Text) ─────────────────── */
.feature-rows { display: flex; flex-direction: column; gap: 72px; margin-top: 40px; }
.feature-row { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.feature-row.reverse .feature-media { order: 2; }
.feature-text { text-align: left; }
.feature-text .eyebrow { margin-bottom: 8px; text-align: left; }
.feature-text h3 { font-size: 1.5rem; line-height: 1.25; margin: 0 0 12px; }
.feature-text p { margin: 0 0 12px; }
.feature-text .feature-fact {
  border-left: 3px solid var(--c-accent); padding: 4px 0 4px 12px;
  font-size: .95rem; color: var(--c-text-muted, #475569);
}
.feature-text .feature-link { font-weight: 600; text-decoration: none; }
.feature-text .feature-link:hover { text-decoration: underline; }
.feature-badge {
  display: inline-block; margin-left: 8px; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: .4px; vertical-align: middle;
  background: #f5b400; color: #1f1600;
}

/* ── Fensterrahmen um App-Ausschnitte ───────────────────── */
.snippet-frame {
  display: flex; flex-direction: column; gap: 12px;
  padding: 16px; border-radius: 16px; overflow-x: auto;
  background: var(--color-page, #f5f6f8); border: 1px solid var(--color-line, #e6e8ee);
  box-shadow: 0 18px 40px -18px rgba(15, 23, 42, .28);
}
.snippet-caption { margin-top: 10px; font-size: .85rem; color: var(--c-text-muted, #64748b); text-align: center; }
.snippet-img { display: block; width: 100%; height: auto; border-radius: 8px; border: 1px solid #e5e7eb; }

/* ── Hell/Dunkel-Regler ─────────────────────────────────── */
.theme-compare { position: relative; display: grid; --pos: 100%; }
.theme-compare > .snippet-frame { grid-area: 1 / 1; }
.theme-compare-top { clip-path: inset(0 0 0 var(--pos)); }
/* Griff = schmaler Streifen um die Trennlinie: nur hier wird gezogen,
   der Rest des Ausschnitts bleibt für Hover und Tooltips frei. */
.theme-compare-line {
  position: absolute; top: 0; bottom: 0; left: var(--pos); width: 32px; margin-left: -16px;
  cursor: ew-resize; touch-action: none;
  background: linear-gradient(to right, transparent 14px, rgba(15, 23, 42, .25) 14px,
    #fff 15px, #fff 17px, rgba(15, 23, 42, .25) 17px, transparent 18px);
}
.theme-compare-line::after {
  content: '⇆'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  background: #fff; color: #0f172a; font-size: 16px; box-shadow: 0 2px 8px rgba(15, 23, 42, .3);
}
/* Range-Input nur für Tastatur und Screenreader: unsichtbar, fokussierbar,
   deckt nichts ab. */
.theme-compare-range {
  position: absolute; left: 0; bottom: 0; width: 1px; height: 1px; margin: 0; padding: 0;
  overflow: hidden; clip-path: inset(50%); border: 0; opacity: 0;
}
.theme-compare:focus-within .theme-compare-line::after { outline: 3px solid var(--c-accent); outline-offset: 2px; }
.theme-compare:not(.is-live) .theme-compare-line { display: none; }

/* ── Hover-Hervorhebung im Diagramm ─────────────────────── */
.app-snippet svg g.is-dim { opacity: .22; }
.app-snippet svg g[tabindex]:focus { outline: none; }
.app-snippet svg g[tabindex]:focus-visible { outline: 2px solid var(--color-brand); outline-offset: 2px; }
.app-snippet svg g { transition: opacity .15s ease; }

/* ── Kompakte Funktions-Leiste ──────────────────────────── */
.feature-strip { list-style: none; padding: 0; margin: 56px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.feature-strip a {
  display: flex; flex-direction: column; gap: 6px; height: 100%; padding: 16px;
  border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px; background: #fff;
  color: inherit; text-decoration: none;
}
.feature-strip a:hover { border-color: var(--c-accent); }
.feature-strip .fs-icon { font-size: 20px; color: var(--c-accent); }
.feature-strip strong { font-size: 1rem; }
.feature-strip span:last-child { font-size: .9rem; color: var(--c-text-muted, #475569); }
.feature-ctas { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 40px; }

@media (max-width: 900px) {
  .feature-row { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .feature-row .feature-media, .feature-row.reverse .feature-media { order: 2; }
  .feature-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
  .feature-strip { grid-template-columns: minmax(0, 1fr); }
  .snippet-frame { padding: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .app-snippet svg g { transition: none; }
}
.feature-ctas .btn-secondary { color: var(--c-accent); border-color: var(--c-accent); background: transparent; }
.feature-ctas .btn-secondary:hover { background: var(--c-accent-soft); border-color: var(--c-accent); }
.feature-text .h3-like { font-size: 1.5rem; line-height: 1.25; margin: 0 0 12px; text-align: left; }
.breadcrumb { font-size: .9rem; color: var(--c-text-muted, #64748b); margin-bottom: 16px; }
.breadcrumb a { color: inherit; }
.page-title { font-size: clamp(2rem, 4vw, 2.75rem); line-height: 1.15; margin: 8px 0 12px; text-align: center; }
.feature-row { scroll-margin-top: 90px; }

/* ── Passungsrechner ────────────────────────────────────── */
.pr-oben { display: grid; gap: 12px 16px; margin-top: 24px; align-items: start; }
@media (min-width: 860px) {
  .pr-oben { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  /* rechts: oben Art + zwei Werte, darunter die beiden Grenzmaße */
  .pr-kacheln-box .pr-kacheln { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .pr-kacheln-box .pr-kachel { grid-column: span 2; }
  .pr-kacheln-box .pr-kachel:nth-child(n+4) { grid-column: span 3; }
}
.pr-form { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin: 0 0 12px;
  padding: 14px 16px; background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px; }
.pr-feld { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.pr-feld input, .pr-feld select { font: inherit; padding: 6px 8px; border: 1px solid var(--c-border, #e5e7eb); border-radius: 8px; background: #fff; }
.pr-feld input { width: 5.5em; }
.pr-slash { color: var(--c-text-muted, #64748b); }
.pr-teilen { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; font: inherit; font-weight: 600; padding: 7px 14px; border-radius: 10px; border: 1px solid var(--c-accent); color: var(--c-accent); background: transparent; cursor: pointer; }
.pr-teilen:hover { background: var(--c-accent-soft); }
.pr-status { font-size: .9rem; color: #16a34a; word-break: break-all; }
.pr-status:empty { display: none; }
.pr-schnell { display: flex; flex-wrap: wrap; gap: 6px; }
.pr-schnell button { font: inherit; font-size: .9rem; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--c-border, #e5e7eb); background: #fff; cursor: pointer; }
.pr-schnell button[aria-pressed="true"] { background: var(--c-accent-soft); border-color: var(--c-accent); color: var(--c-accent); }
.pr-kacheln { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.pr-kachel { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 10px; }
.pr-kachel span { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--c-text-muted, #64748b); }
.pr-kachel strong { font-variant-numeric: tabular-nums; }
.pr-kachel small { display: block; font-weight: 400; color: var(--c-text-muted, #64748b); }
.pr-spiel strong { color: #16a34a; } .pr-uebergang strong { color: #d97706; } .pr-uebermass strong { color: #dc2626; }
.pr-grafik { margin: 16px 0 8px; padding: 12px; background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px; }
.pr-grafik svg { display: block; width: 100%; height: auto; }
.pr-text { padding: 12px 16px; background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px; }
.pr-text p { margin: 0; }
.pr-text p + p { margin-top: 8px; }
.pr-beschichtung-text { font-weight: 600; }
.pr-hinweis { padding: 14px 16px; border-radius: 10px; background: #fff7ed; color: #9a3412; }
details.pr-beschichtung { margin-top: 16px; padding: 12px 16px; background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px; }
.pr-beschichtung-felder { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; margin: 12px 0; }
.pr-beschichtung-felder input[type="number"] { width: 5em; font: inherit; padding: 4px 6px; }
.pr-wissen h3 { text-align: left; margin: 24px 0 6px; font-size: 1.1rem; }
.pr-wissen p { max-width: 75ch; }
@media (max-width: 600px) {
  .pr-teilen { margin-left: 0; }
  .pr-form { gap: 8px 10px; }
}
details.pr-beschichtung summary { display: flex; justify-content: flex-start; align-items: center; gap: 10px; list-style: none; cursor: pointer; font-weight: 600; }
details.pr-beschichtung summary::-webkit-details-marker { display: none; }
.pr-haken { flex: none; position: relative; width: 18px; height: 18px; border: 2px solid var(--c-border-strong, #94a3b8); border-radius: 4px; background: #fff; }
details.pr-beschichtung summary:hover .pr-haken { border-color: var(--c-accent); }
details.pr-beschichtung[open] .pr-haken { background: var(--c-accent); border-color: var(--c-accent); }
details.pr-beschichtung[open] .pr-haken::after { content: ""; position: absolute; left: 4px; top: 0; width: 5px; height: 10px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
details.pr-beschichtung summary::after { content: none; }
.pr-hinweis-box { margin: 20px 0; padding: 12px 16px; border-left: 3px solid var(--c-accent); background: var(--c-accent-soft); border-radius: 0 10px 10px 0; }
.cta-block .sub a { color: #fff; text-underline-offset: 3px; text-decoration-color: rgba(255, 255, 255, .5); }

/* ── Oberflächenrechner ─────────────────────────────────── */
.or-form { display: flex; flex-direction: column; gap: 12px; padding: 14px 16px; background: #fff; border: 1px solid var(--c-border, #e5e7eb); border-radius: 12px; min-width: 0; }
.or-richtung { display: flex; flex-wrap: wrap; gap: 6px; }
.or-richtung button { font: inherit; font-weight: 600; padding: 7px 12px; border-radius: 10px; border: 1px solid var(--c-border, #e5e7eb); background: #fff; cursor: pointer; }
.or-richtung button[aria-pressed="true"] { background: var(--c-accent-soft); border-color: var(--c-accent); color: var(--c-accent); }
.or-varianten-box { border: 0; margin: 0; padding: 0; min-width: 0; }
.or-varianten-box legend { font-weight: 600; margin-bottom: 6px; padding: 0; }
.or-varianten { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
@media (min-width: 600px) { .or-varianten { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.or-variante { display: flex; flex-direction: column; gap: 2px; text-align: left; font: inherit; padding: 6px 8px 8px; border: 1px solid var(--c-border, #e5e7eb); border-radius: 10px; background: #fff; cursor: pointer; }
.or-variante svg { display: block; width: 100%; height: auto; }
.or-variante:hover { border-color: var(--c-accent); }
.or-variante[aria-pressed="true"] { border-color: var(--c-accent); background: var(--c-accent-soft); }
.or-v-titel { font-size: .85rem; font-weight: 600; line-height: 1.25; }
.or-v-unter { font-size: .75rem; color: var(--c-text-muted, #64748b); }
.or-fall3, .or-info { margin: 6px 0 0; font-size: .85rem; color: var(--c-text-muted, #64748b); }
.or-info { margin: 0; }
.or-info.or-warn { color: #9a3412; }
.or-zeile { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.or-label { font-weight: 600; min-width: 9.5em; }
.or-form #or-t { width: 9em; }
.or-form .pr-teilen { margin-left: 0; }
.or-dm { display: inline-flex; align-items: center; gap: 6px; }
.or-dm[hidden] { display: none; }
details.or-abtrag { margin-top: 0; padding: 10px 12px; }
.or-abtrag .or-zeile { margin-top: 10px; }
.or-kacheln-box .pr-kachel.or-haupt { grid-column: 1 / -1; }
.or-haupt strong { font-size: 1.35rem; color: var(--c-accent); }
.pr-kachel.or-fehler { border-color: #dc2626; background: #fef2f2; }
.or-fehler strong { font-size: 1rem; font-weight: 600; color: #b91c1c; }
.or-skizze svg { max-width: 560px; margin: 0 auto; }

/* ── Wissen: ISO-Tabellen ───────────────────────────────── */
.iso-rahmen { overflow-x: auto; margin: 12px 0 24px; border: 1px solid var(--c-border, #e2e8f0); border-radius: 10px; background: #fff; }
table.iso { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 14px; font-variant-numeric: tabular-nums; }
table.iso caption { caption-side: top; text-align: left; padding: 10px 12px; font-size: 13.5px; color: var(--c-text-muted, #475569); }
table.iso th, table.iso td { padding: 6px 10px; border-bottom: 1px solid var(--c-border, #e2e8f0); text-align: right; white-space: nowrap; }
table.iso thead th { background: var(--c-bg-alt, #f1f5f9); font-weight: 700; }
table.iso th[scope="row"] { position: sticky; left: 0; z-index: 1; text-align: left; font-weight: 600; background: #fff; border-right: 1px solid var(--c-border, #e2e8f0); }
table.iso thead th:first-child { position: sticky; left: 0; z-index: 2; text-align: left; }
table.iso-abmasse td span { display: block; line-height: 1.25; }
table.iso-passungen td a { color: inherit; text-decoration: none; }
table.iso-passungen td a:hover { text-decoration: underline; }
td.pt-spiel { color: #047857; } td.pt-uebergang { color: #b45309; } td.pt-uebermass { color: #b91c1c; }
table.iso tr.gruppe th { position: static; text-align: left; background: var(--c-bg-alt, #f1f5f9); font-weight: 700; }
table.iso-alpha th[scope="row"] { white-space: normal; min-width: 11em; }
.cta-box a.inline { display: inline; background: none; padding: 0; color: #fff; text-decoration: underline; font-weight: 600; }

/* ── Wissen: Formeln und Maßplan ────────────────────────── */
.formel { font-variant-numeric: tabular-nums; background: var(--c-bg-alt, #f1f5f9); border-radius: 8px; padding: 10px 14px; overflow-x: auto; }
ul.formeln { list-style: none; padding-left: 0; }
ul.formeln li { font-variant-numeric: tabular-nums; }
.massplan-figur { margin: 16px 0 24px; padding: 12px; background: #fff; border: 1px solid var(--c-border, #e2e8f0); border-radius: 12px; }
.massplan-figur svg { display: block; width: 100%; height: auto; }
.massplan-figur figcaption { font-size: 13.5px; color: var(--c-text-muted, #475569); margin-top: 6px; }
.fussnote { font-size: 13.5px; color: var(--c-text-muted, #475569); }
.calc-rahmen { overflow-x: auto; }
.calc-rahmen table.calc { min-width: 520px; }
.calc-rahmen.schmal table.calc { min-width: 0; }
@media (max-width: 600px) { .massplan text { font-size: 18px; } }
.formel.excel { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14.5px; }
pre.mailtext { white-space: pre-wrap; background: #fff; border: 1px solid var(--c-border, #e2e8f0); border-radius: 10px; padding: 14px 16px; font-size: 14.5px; }