/* ============================================================================
   OLDISCHLAUCH® — Classic Line Solutions · Stylesheet
   REV.7 (2026-10-16, Canvas) — production build for oldischlauch.com.
   REV.8 (2026-10-16, Canvas) — rules unchanged; this file is a 1:1 copy of REV.7.
   Rules 1–16 are carried over 1:1 from REV.6 (only whitespace/comments
   condensed). New in REV.7: section 17 (utility classes replacing all former
   inline style="" attributes, required by the strict CSP style-src 'self',
   card-photo classes, form fallback, honeypot, legal pages, language gateway).
   Palette: Alt-Gold #B78B46 (gradient #D9B877 -> #8A662F), Anthrazit #1B1D22,
   Creme #F6F2EA. No external fonts: Cormorant Garamond / Cinzel are named in
   the stacks only and fall back to locally installed serif fonts.
   ========================================================================= */

/* ---------- 1. Design tokens ---------- */
:root {
  --color-ink: #1b1d22;
  --color-ink-soft: #26282f;
  --color-ink-softer: #33363f;
  --color-copper: #b78b46;
  --color-copper-light: #d9b877;
  --color-copper-dark: #8a662f;
  --color-paper: #f6f2ea;
  --color-paper-alt: #efe7d6;
  --color-card: #ffffff;
  --color-text: #262a30;
  --color-text-muted: #5c6270;
  --color-text-on-dark: #eef0f3;
  --color-text-on-dark-muted: #a9acb6;
  --color-border: #d9cfbb;
  --color-border-dark: #3a3d47;
  --color-success: #4a7a4a;
  --font-heading: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --font-display: "Cormorant Garamond", Palatino, "Palatino Linotype", Georgia, serif;
  --font-tagline: Cinzel, Georgia, "Times New Roman", serif;
  --font-body: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 3px;
  --radius-md: 6px;
  --shadow-sm: 0 1px 3px rgba(27, 29, 34, 0.14);
  --shadow-md: 0 8px 22px rgba(27, 29, 34, 0.18);
  --container-width: 1160px;
  --header-height: 76px;
}

/* ---------- 2. Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 12px); }
body { margin: 0; font-family: var(--font-body); color: var(--color-text); background: var(--color-paper); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--color-copper-dark); text-decoration-thickness: 1.5px; text-underline-offset: 2px; }
a:hover, a:focus-visible { color: var(--color-copper); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid var(--color-copper-light); outline-offset: 2px; }
ul, ol { padding-left: 1.2em; }
[hidden] { display: none !important; }

/* ---------- 3. Layout helpers ---------- */
.container { width: 100%; max-width: var(--container-width); margin-inline: auto; padding-inline: 20px; }
.section { padding-block: 56px; }
.section-alt { background: var(--color-paper-alt); }
.section-dark { background: var(--color-ink); color: var(--color-text-on-dark); }
.section-head { max-width: 720px; margin-bottom: 36px; }
.section-head.center { margin-inline: auto; text-align: center; }
.eyebrow { display: inline-block; font-size: 0.8rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--color-copper-dark); font-weight: 700; margin-bottom: 10px; }
.section-dark .eyebrow { color: var(--color-copper-light); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--color-copper); color: #fff; padding: 10px 16px; z-index: 1000; border-radius: 0 0 var(--radius-sm) 0; }
.skip-link:focus { left: 0; }

/* ---------- 4. Typografie ---------- */
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; color: var(--color-ink); margin-top: 0; }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--color-text-on-dark); }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.3rem; font-weight: 700; }
p { margin-top: 0; }
.lede { font-size: 1.15rem; color: var(--color-text-muted); max-width: 60ch; }
.section-dark .lede { color: var(--color-text-on-dark-muted); }
.breadcrumb { font-size: 0.88rem; color: var(--color-text-muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-copper-dark); }

/* ---------- 5. Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 26px; border-radius: var(--radius-sm); font-weight: 700; font-size: 0.98rem; text-decoration: none; border: 2px solid transparent; cursor: pointer; line-height: 1.1; transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease; }
.btn-primary { background: var(--color-copper); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-copper-dark); color: #fff; box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; border-color: currentColor; color: var(--color-ink); }
.section-dark .btn-outline { color: var(--color-text-on-dark); }
.btn-outline:hover, .btn-outline:focus-visible { background: rgba(255, 255, 255, 0.08); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 16px; font-size: 0.88rem; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ---------- 6. Hinweisleiste (REV.7: auf Live-Seiten nicht mehr verwendet) ---------- */
.prototype-notice { background: #3a2a13; color: #f3e2c8; font-size: 0.85rem; text-align: center; padding: 8px 16px; border-bottom: 1px solid var(--color-copper-dark); }
.prototype-notice strong { color: #fff; }

/* ---------- 7. Header / Sticky-Nav ---------- */
.site-header { position: sticky; top: 0; z-index: 500; background: var(--color-ink); border-bottom: 1px solid var(--color-border-dark); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-height); gap: 18px; position: relative; }
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; line-height: 1.1; }
.brand-mark { flex-shrink: 0; display: block; }
.brand-text { display: flex; flex-direction: column; }
.brand-word { font-family: var(--font-display); font-style: italic; font-weight: 600; font-size: 1.6rem; color: #fff; }
.brand-word sup { font-style: normal; }
.brand-tag { font-family: var(--font-tagline); font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-text-on-dark-muted); margin-top: 3px; }
.nav-toggle { display: inline-flex; align-items: center; gap: 8px; background: transparent; border: 1px solid var(--color-border-dark); color: var(--color-text-on-dark); padding: 9px 12px; border-radius: var(--radius-sm); }
.nav-toggle .bars { display: block; width: 20px; height: 2px; background: currentColor; position: relative; }
.nav-toggle .bars::before, .nav-toggle .bars::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: currentColor; }
.nav-toggle .bars::before { top: -6px; }
.nav-toggle .bars::after { top: 6px; }
.main-nav { display: flex; align-items: center; gap: 26px; }
.nav-links { display: flex; align-items: center; gap: 22px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--color-text-on-dark); text-decoration: none; font-size: 0.95rem; font-weight: 600; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--color-copper-light); }
.nav-dropdown { position: relative; }
.nav-dropdown-panel { display: none; position: absolute; top: calc(100% + 14px); left: 0; background: var(--color-ink-soft); border: 1px solid var(--color-border-dark); border-radius: var(--radius-md); min-width: 260px; padding: 10px; box-shadow: var(--shadow-md); list-style: none; margin: 0; }
.nav-dropdown:hover .nav-dropdown-panel, .nav-dropdown:focus-within .nav-dropdown-panel { display: block; }
.nav-dropdown-panel li a { display: block; padding: 9px 10px; border-radius: var(--radius-sm); font-weight: 500; }
.nav-dropdown-panel li a:hover, .nav-dropdown-panel li a:focus-visible { background: var(--color-ink-softer); }
.nav-dropdown-heading { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--color-text-on-dark-muted); padding: 10px 10px 4px; }
.nav-dropdown-panel li:first-child.nav-dropdown-heading { padding-top: 2px; }
.header-cta { flex-shrink: 0; }
.lang-switch-dropdown { position: relative; }
.lang-switch-dropdown .nav-dropdown-panel { left: auto; right: 0; min-width: 190px; }
.lang-toggle { display: inline-flex; align-items: center; gap: 5px; background: transparent; border: 1px solid var(--color-border-dark); color: var(--color-text-on-dark); border-radius: 999px; padding: 6px 12px; font-size: 0.78rem; font-weight: 600; cursor: pointer; }
.lang-toggle:hover, .lang-toggle:focus-visible { border-color: var(--color-copper); }
.lang-caret { font-size: 0.6rem; opacity: 0.8; }
.lang-menu a, .lang-active-label { display: block; padding: 9px 10px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.88rem; }
.lang-active-label { color: var(--color-copper-light); font-weight: 700; cursor: default; }
.lang-menu a:hover, .lang-menu a:focus-visible { background: var(--color-ink-softer); }
.lang-menu em { font-style: italic; opacity: 0.7; font-size: 0.78rem; }

/* ---------- 8. Hero ---------- */
.hero { background: linear-gradient(160deg, var(--color-ink) 0%, #212328 55%, var(--color-ink-soft) 100%); color: var(--color-text-on-dark); padding-block: 64px 56px; }
.hero-grid { display: grid; gap: 40px; align-items: center; }
.hero h1 { color: #fff; }
.hero h1 em { font-style: normal; color: var(--color-copper-light); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-meta { margin-top: 22px; font-size: 0.9rem; color: var(--color-text-on-dark-muted); }
.hero-visual { background: var(--color-ink-soft); border: 1px dashed var(--color-border-dark); border-radius: var(--radius-md); padding: 28px; text-align: center; }

/* ---------- 9. Trust-Signal-Leiste ---------- */
.trust-bar { background: var(--color-paper-alt); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.trust-grid { display: grid; gap: 22px; padding-block: 26px; grid-template-columns: repeat(2, 1fr); text-align: center; }
.trust-item { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.trust-icon { width: 40px; height: 40px; border-radius: 50%; background: var(--color-ink); color: var(--color-copper-light); display: flex; align-items: center; justify-content: center; font-weight: 700; font-family: var(--font-heading); }
.trust-item strong { font-size: 0.95rem; color: var(--color-ink); }
.trust-item span { font-size: 0.82rem; color: var(--color-text-muted); }

/* ---------- 10. Prozess-Schritte ---------- */
.process-grid { display: grid; gap: 26px; grid-template-columns: 1fr; counter-reset: process; }
.process-step { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 26px 22px; position: relative; box-shadow: var(--shadow-sm); }
.process-number { width: 42px; height: 42px; border-radius: 50%; background: var(--color-copper); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; margin-bottom: 16px; }
.process-step h3 { margin-bottom: 8px; }
.process-step p { color: var(--color-text-muted); font-size: 0.95rem; }
.process-arrow { display: none; }

/* ---------- 11. Leistungs-Kachel-Grid — 3D-Flip-Cards ---------- */
.category-grid { display: grid; gap: 24px; grid-template-columns: 1fr; }
.flip-card { perspective: 1200px; min-height: 260px; }
.flip-card-inner { position: relative; width: 100%; height: 100%; min-height: 260px; text-align: center; transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1); transform-style: preserve-3d; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.flip-card:hover .flip-card-inner, .flip-card:focus-within .flip-card-inner, .flip-card.is-flipped .flip-card-inner { transform: rotateY(180deg); box-shadow: var(--shadow-md); }
.flip-card-front, .flip-card-back { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; border-radius: var(--radius-md); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 26px 22px; }
.flip-card-front { background: var(--color-card); border: 1px solid var(--color-border); }
.flip-card-back { background: var(--color-ink); color: var(--color-text-on-dark); transform: rotateY(180deg); border: 1px solid var(--color-border-dark); }
.flip-icon { width: 58px; height: 58px; border-radius: 50%; background: var(--color-paper-alt); border: 1px solid var(--color-border); color: var(--color-copper-dark); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.flip-icon svg { width: 30px; height: 30px; }
.flip-card-front h3 { margin-bottom: 4px; }
.flip-hint { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }
.flip-trigger { margin-top: 14px; background: transparent; border: 1px solid var(--color-border); color: var(--color-ink); border-radius: var(--radius-sm); padding: 8px 14px; font-size: 0.82rem; font-weight: 700; cursor: pointer; }
.flip-trigger:hover, .flip-trigger:focus-visible { border-color: var(--color-copper); color: var(--color-copper-dark); }
.flip-card-back p { color: var(--color-text-on-dark-muted); font-size: 0.92rem; margin-bottom: 16px; }
.flip-card-back .card-link { color: var(--color-copper-light); font-weight: 700; text-decoration: none; font-size: 0.92rem; }
.flip-card-back .card-link::after { content: " \2192"; }
.flip-back { margin-top: 10px; background: transparent; border: none; color: var(--color-text-on-dark-muted); font-size: 0.78rem; text-decoration: underline; cursor: pointer; padding: 4px; }
.flip-back:hover, .flip-back:focus-visible { color: #fff; }
@media (prefers-reduced-motion: reduce) {
  .flip-card-inner { transition: none; }
  .flip-card-front, .flip-card-back { transition: opacity 0.2s ease; }
  .flip-card:hover .flip-card-inner, .flip-card:focus-within .flip-card-inner, .flip-card.is-flipped .flip-card-inner { transform: none; }
  .flip-card-back { transform: none; position: absolute; opacity: 0; pointer-events: none; }
  .flip-card:hover .flip-card-back, .flip-card:focus-within .flip-card-back, .flip-card.is-flipped .flip-card-back { opacity: 1; pointer-events: auto; }
  .flip-card:hover .flip-card-front, .flip-card:focus-within .flip-card-front, .flip-card.is-flipped .flip-card-front { opacity: 0; pointer-events: none; }
}

/* ---------- 12. Kategorieseiten-Bausteine ---------- */
.img-placeholder { background: #e4ddcd; border: 1px dashed #b3a789; border-radius: var(--radius-sm); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: #6b6350; font-size: 0.85rem; text-align: center; aspect-ratio: 4 / 3; padding: 12px; }
.img-placeholder svg { width: 34px; height: 34px; opacity: 0.55; }
.hero-photo { position: relative; margin: 0; aspect-ratio: 4 / 3; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-border-dark); }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-credit { position: absolute; right: 8px; bottom: 8px; background: rgba(27, 29, 34, 0.72); color: var(--color-text-on-dark-muted); font-size: 0.68rem; line-height: 1.3; padding: 3px 7px; border-radius: 3px; }
.photo-credit a { color: var(--color-text-on-dark); }
.flip-card-front.has-photo { background: linear-gradient(180deg, rgba(27, 29, 34, 0.18), rgba(27, 29, 34, 0.78)), var(--card-photo) center / cover no-repeat; color: var(--color-text-on-dark); border-color: var(--color-border-dark); }
.flip-card-front.has-photo h3 { color: #ffffff; }
.flip-card-front.has-photo .flip-icon { background: rgba(255, 255, 255, 0.16); border-color: rgba(255, 255, 255, 0.4); color: var(--color-copper-light); }
.flip-card-front.has-photo .flip-hint { color: var(--color-text-on-dark-muted); }
.flip-card-front .photo-credit { right: 6px; bottom: 6px; font-size: 0.6rem; padding: 2px 5px; }
.category-card .img-placeholder { aspect-ratio: 16 / 10; border-radius: 0; border: none; border-bottom: 1px solid var(--color-border); }
.problem-box { background: var(--color-ink); color: var(--color-text-on-dark); border-radius: var(--radius-md); padding: 28px 30px; margin-bottom: 8px; }
.problem-box h1, .problem-box h2 { color: #fff; }
.two-col { display: grid; gap: 40px; grid-template-columns: 1fr; align-items: start; }
.spec-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.spec-list li { display: flex; gap: 12px; align-items: flex-start; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 14px 16px; }
.spec-check { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--color-success); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 0.78rem; margin-top: 2px; }
.gallery-grid { display: grid; gap: 16px; grid-template-columns: repeat(2, 1fr); }
.inline-cta { background: linear-gradient(135deg, var(--color-copper) 0%, var(--color-copper-dark) 100%); color: #fff; border-radius: var(--radius-md); padding: 32px 30px; display: flex; flex-direction: column; gap: 16px; align-items: flex-start; box-shadow: var(--shadow-md); }
.inline-cta h2, .inline-cta h3 { color: #fff; margin-bottom: 4px; }
.inline-cta p { color: rgba(255, 255, 255, 0.92); max-width: 62ch; }
.inline-cta .btn-outline { color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.related-links { display: grid; gap: 12px; grid-template-columns: 1fr; }
.related-links a { display: block; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 14px 16px; text-decoration: none; font-weight: 700; color: var(--color-ink); }
.related-links a:hover, .related-links a:focus-visible { border-color: var(--color-copper); color: var(--color-copper-dark); }
.related-links a span { display: block; font-weight: 400; font-size: 0.85rem; color: var(--color-text-muted); margin-top: 3px; }
.stub-notice { background: var(--color-paper-alt); border: 1px dashed var(--color-border); border-radius: var(--radius-md); padding: 28px 26px; text-align: center; }
.redirect-notice { background: var(--color-ink); color: var(--color-text-on-dark); border-radius: var(--radius-md); padding: 34px 30px; text-align: center; }
.redirect-notice h1 { color: #fff; }
.case-study { background: var(--color-ink); color: var(--color-text-on-dark); border-radius: var(--radius-md); padding: 40px 32px; text-align: center; }
.case-study h2, .case-study h3 { color: #fff; }
.case-price-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 36px; margin: 26px 0; }
.case-price { min-width: 160px; }
.case-price .value { font-family: var(--font-heading); font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; color: var(--color-copper-light); }
.case-price .label { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-on-dark-muted); margin-top: 4px; }
.case-study .fine-print { color: var(--color-text-on-dark-muted); font-size: 0.9rem; max-width: 52ch; margin-inline: auto; }
.brand-chip-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.brand-chip { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 14px 10px; text-align: center; font-weight: 600; font-size: 0.92rem; color: var(--color-ink); text-decoration: none; display: block; }
a.brand-chip { border-color: var(--color-copper); }
a.brand-chip:hover, a.brand-chip:focus-visible { background: var(--color-paper-alt); color: var(--color-copper-dark); }
a.brand-chip::after { content: " \2192"; }
.caveat-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.caveat-list li { display: flex; gap: 12px; align-items: flex-start; background: var(--color-paper-alt); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 12px 14px; color: var(--color-text-muted); font-size: 0.92rem; }
.caveat-mark { flex-shrink: 0; width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--color-text-muted); display: flex; align-items: center; justify-content: center; font-size: 0.72rem; margin-top: 1px; }
.radio-group { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.radio-option { display: flex; align-items: center; gap: 8px; font-size: 0.92rem; font-weight: 500; color: var(--color-text); }
.radio-option input[type="radio"] { width: 17px; height: 17px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag-chip { background: var(--color-paper-alt); border: 1px solid var(--color-border); border-radius: 999px; padding: 6px 14px; font-size: 0.82rem; color: var(--color-text-muted); }
.whatsapp-fab { position: fixed; right: 18px; bottom: 18px; z-index: 600; display: inline-flex; align-items: center; gap: 8px; background: #25d366; color: #fff; text-decoration: none; font-weight: 700; font-size: 0.88rem; padding: 12px 18px; border-radius: 999px; box-shadow: var(--shadow-md); }
.whatsapp-fab:hover, .whatsapp-fab:focus-visible { background: #1ebd5b; color: #fff; }

/* ---------- 13. FAQ-Akkordeon ---------- */
.faq-list { display: grid; gap: 12px; }
.faq-item { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 16px 44px 16px 18px; font-weight: 700; position: relative; color: var(--color-ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 1.3rem; color: var(--color-copper); font-weight: 700; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item .faq-answer { padding: 0 18px 18px; color: var(--color-text-muted); }

/* ---------- 14. Formular (Ersatzteil-Anfrage) ---------- */
.form-shell { display: grid; gap: 36px; grid-template-columns: 1fr; }
.form-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 30px 26px; box-shadow: var(--shadow-sm); }
.form-fieldset { border: none; padding: 0; margin: 0 0 30px; }
.form-fieldset:last-of-type { margin-bottom: 0; }
.form-fieldset legend { font-family: var(--font-heading); font-weight: 700; font-size: 1.15rem; color: var(--color-ink); padding: 0; margin-bottom: 4px; }
.form-fieldset .fieldset-hint { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 18px; }
.form-row { display: grid; gap: 18px; grid-template-columns: 1fr; margin-bottom: 18px; }
.form-row:last-child { margin-bottom: 0; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-weight: 600; font-size: 0.92rem; color: var(--color-ink); }
.form-field .optional { font-weight: 400; color: var(--color-text-muted); font-size: 0.82rem; }
.form-field input[type="text"], .form-field input[type="email"], .form-field input[type="tel"], .form-field input[type="number"], .form-field select, .form-field textarea { font: inherit; padding: 11px 13px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: #fff; color: var(--color-text); }
.form-field textarea { resize: vertical; min-height: 120px; }
.upload-dropzone { border: 2px dashed var(--color-border); border-radius: var(--radius-md); padding: 30px 20px; text-align: center; background: var(--color-paper-alt); position: relative; }
.upload-dropzone svg { width: 40px; height: 40px; color: var(--color-copper); margin: 0 auto 12px; }
.upload-dropzone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-hint { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 8px; }
.upload-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 18px; }
.upload-thumb { aspect-ratio: 1; border-radius: var(--radius-sm); border: 1px dashed var(--color-border); background: #e4ddcd; display: flex; align-items: center; justify-content: center; font-size: 0.72rem; color: #6b6350; text-align: center; padding: 6px; }
.checkbox-row { display: flex; align-items: flex-start; gap: 10px; }
.checkbox-row input[type="checkbox"] { margin-top: 4px; width: 18px; height: 18px; flex-shrink: 0; }
.checkbox-row label { font-size: 0.9rem; color: var(--color-text-muted); }
.form-submit-row { margin-top: 8px; display: flex; flex-direction: column; gap: 10px; }
.form-note { font-size: 0.82rem; color: var(--color-text-muted); }
.sidebar-card { background: var(--color-ink); color: var(--color-text-on-dark); border-radius: var(--radius-md); padding: 26px 24px; }
.sidebar-card h3 { color: #fff; }
.sidebar-card ul { padding-left: 1.1em; color: var(--color-text-on-dark-muted); font-size: 0.92rem; }
.sidebar-card li + li { margin-top: 8px; }
.sidebar-card + .sidebar-card { margin-top: 20px; }
.sidebar-card a { color: var(--color-copper-light); }

/* ---------- 15. Footer ---------- */
.site-footer { background: var(--color-ink); color: var(--color-text-on-dark-muted); padding-block: 48px 24px; }
.footer-grid { display: grid; gap: 32px; grid-template-columns: 1fr; padding-bottom: 32px; border-bottom: 1px solid var(--color-border-dark); }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-col a { color: var(--color-text-on-dark-muted); text-decoration: none; font-size: 0.92rem; }
.footer-col a:hover, .footer-col a:focus-visible { color: var(--color-copper-light); }
.footer-col p { font-size: 0.9rem; }
.footer-placeholder { color: var(--color-copper-light); font-style: italic; }
.brand-by-line { font-size: 0.78rem; color: var(--color-text-on-dark-muted); margin: 2px 0 10px; }
.footer-col .brand-by-line a { color: var(--color-copper-light); font-size: inherit; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; overflow-wrap: anywhere; }
.footer-col .brand-by-line a:hover, .footer-col .brand-by-line a:focus-visible { color: #fff; text-decoration-thickness: 2px; }
.footer-heading { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--color-copper-light); margin-top: 6px; }
.footer-bottom { padding-top: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.82rem; }
.footer-bottom a { color: var(--color-text-on-dark-muted); }

/* ---------- 16. Responsive Breakpoints ---------- */
@media (min-width: 640px) {
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .form-row.cols-2 { grid-template-columns: 1fr 1fr; }
  .form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-chip-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 780px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1.3fr 1fr; }
  .form-shell { grid-template-columns: 2fr 1fr; align-items: start; }
  .related-links.cols-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .main-nav { display: flex !important; }
  .brand { order: 1; }
  .main-nav { order: 2; }
  .header-actions { order: 3; }
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; }
  .process-grid { grid-template-columns: repeat(4, 1fr); }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 959px) {
  .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--color-ink-soft); border-bottom: 1px solid var(--color-border-dark); padding: 18px 20px 26px; flex-direction: column; align-items: stretch; gap: 18px; }
  .main-nav.is-open { display: flex; }
  .nav-links { flex-direction: column; align-items: flex-start; gap: 4px; }
  .nav-links a { display: block; padding: 10px 4px; width: 100%; }
  .nav-dropdown-panel { position: static; display: none; box-shadow: none; border: none; background: transparent; padding: 0 0 0 12px; }
  .nav-dropdown.is-open .nav-dropdown-panel { display: block; }
  .site-header .container { flex-wrap: wrap; }
  .header-actions .btn { padding: 10px 16px; font-size: 0.88rem; }
}

/* ---------- 17. REV.7 — Utilities (ersetzen alle früheren style="" Attribute) ---------- */
.pt-0 { padding-top: 0; }
.pt-8 { padding-top: 8px; }
.pb-0 { padding-bottom: 0; }
.pb-24 { padding-bottom: 24px; }
.mt-14 { margin-top: 14px; }
.mt-18 { margin-top: 18px; }
.mt-24 { margin-top: 24px; }
.mb-6 { margin-bottom: 6px; }
.mi-auto { margin-inline: auto; }
.text-on-dark-muted { color: var(--color-text-on-dark-muted); }
.text-gold-light { color: var(--color-copper-light); }
.text-white { color: #fff; }
.actions-center { justify-content: center; margin-top: 20px; }
.lang-note { font-style: italic; opacity: 0.8; font-size: 0.85em; }

/* Flip-Card-Fotos (vorher inline --card-photo). Pfade relativ zu dieser Datei. */
.card-photo-oel { --card-photo: url("../img/examples/oelleitung-oelkuehler.jpg"); }
.card-photo-servo { --card-photo: url("../img/examples/servoleitung-mb190e.jpg"); }
.card-photo-automatik { --card-photo: url("../img/examples/automatikleitung-motorraum.jpg"); }
.card-photo-kraftstoff { --card-photo: url("../img/examples/kraftstoffleitung-motorraum.jpg"); }
.card-photo-hydraulik { --card-photo: url("../img/examples/hydraulikleitung-system.jpg"); }
.card-photo-kuehlmittel { --card-photo: url("../img/examples/kuehlmittelleitung-radiatorhose.jpg"); }

/* Anfrageformular: Honeypot (für Menschen unsichtbar) + ehrlicher Fallback */
.hp-field { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.form-fallback { margin-top: 18px; background: var(--color-paper-alt); border: 1px solid var(--color-border); border-left: 4px solid var(--color-copper); border-radius: var(--radius-sm); padding: 18px 20px; }
.form-fallback h3 { font-size: 1.1rem; margin-bottom: 8px; }
.form-pending-note { background: var(--color-paper-alt); border-left: 4px solid var(--color-copper); padding: 12px 14px; border-radius: var(--radius-sm); font-size: 0.88rem; color: var(--color-text); }

/* Markenseiten */
.trademark-note { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 18px; }

/* Rechtstexte (Impressum, Datenschutz) */
.legal-prose { max-width: 780px; }
.legal-prose h2 { font-size: 1.35rem; margin-top: 34px; }
.legal-prose h3 { font-size: 1.1rem; margin-top: 24px; }
.legal-prose address { font-style: normal; margin-bottom: 1em; }
.legal-prose ul { margin-bottom: 1em; }
.legal-prose .hint { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 32px; }

/* Root-Sprachauswahl (/index.html) und 404 */
.lang-gateway { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--color-ink); color: var(--color-text-on-dark); padding: 24px; text-align: center; }
.lang-gateway h1 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.lang-gateway .brand { justify-content: center; margin-bottom: 26px; }
.lang-list { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.lang-list a { display: inline-block; padding: 10px 16px; border: 1px solid var(--color-border-dark); border-radius: 999px; color: var(--color-text-on-dark); text-decoration: none; font-weight: 600; }
.lang-list a:hover, .lang-list a:focus-visible { border-color: var(--color-copper); color: var(--color-copper-light); }