:root {
  color-scheme: light;
  --keller-gruen: #118A3B;
  --keller-gruen-dunkel: #0d6b2d;
  --keller-rot: #E30613;
  --keller-rot-dunkel: #b8050f;
  --dunkel: #1F2937;
  --grau: #6B7280;
  --hellgrau: #F3F4F6;
  --weiss: #FFFFFF;
  --radius: 12px;

  /* Theme-Tokens (Regel 61: vollstaendig gestalteter Dark Mode, keine Invertierung) */
  --bg-page: #FFFFFF;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F3F4F6;
  --text-primary: #1F2937;
  --text-secondary: #5B6472;
  --border-color: #E5E7EB;
  --header-bg: #FFFFFF;
  --shadow-color: rgba(15,23,42,0.1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg-page: #12161F;
  --bg-surface: #1B212D;
  --bg-subtle: #232A38;
  --text-primary: #F3F4F6;
  --text-secondary: #A5ADBB;
  --border-color: #2E3644;
  --header-bg: #171C27;
  --shadow-color: rgba(0,0,0,0.45);
  --hellgrau: #232A38;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg-page: #12161F;
    --bg-surface: #1B212D;
    --bg-subtle: #232A38;
    --text-primary: #F3F4F6;
    --text-secondary: #A5ADBB;
    --border-color: #2E3644;
    --header-bg: #171C27;
    --shadow-color: rgba(0,0,0,0.45);
    --hellgrau: #232A38;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  background: var(--bg-page);
  line-height: 1.55;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 1.25rem; }

/* Skip Link (Barrierefreiheit) */
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--keller-gruen); color: #fff;
  padding: 0.75rem 1.25rem; z-index: 100; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* Nur fuer Screenreader sichtbar — behaelt die semantische Ueberschriften-
   hierarchie bei, ohne das visuelle Design zu veraendern (Regel 67). */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  position: sticky; top: 0; background: var(--header-bg); z-index: 50;
}
.site-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.8rem 0; gap: 1.5rem; flex-wrap: wrap;
}
.site-logo { display: flex; align-items: center; text-decoration: none; }
.site-logo img { height: 68px; width: auto; display: block; }
@media (max-width: 480px) { .site-logo img { height: 50px; } }

.site-nav { display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; }
.site-nav a {
  text-decoration: none; color: var(--text-primary); font-weight: 600; font-size: 0.95rem;
  padding: 0.35rem 0.1rem; border-bottom: 2px solid transparent;
}
.site-nav a:hover, .site-nav a.active { border-bottom-color: var(--keller-gruen); color: var(--keller-gruen); }

/* Mobiles Menue ohne JavaScript (Checkbox-Technik) */
.nav-toggle-input { display: none; }
.nav-toggle-label {
  display: none; cursor: pointer; padding: 0.5rem; border-radius: 8px;
  border: 1px solid var(--border-color); background: var(--bg-surface); color: var(--text-primary); font-size: 1.1rem; line-height: 1;
}

.btn {
  display: inline-block; text-decoration: none; font-weight: 700; border-radius: 999px;
  padding: 0.75rem 1.5rem; border: none; cursor: pointer; font-size: 0.95rem;
  transition: filter 0.15s ease;
}
.btn:hover { filter: brightness(0.92); }
.btn-red { background: var(--keller-rot); color: #fff; }
.btn-green { background: var(--keller-gruen); color: #fff; }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }

/* Hell-/Dunkel-Modus Umschalter — zeigt den Modus, in den umgeschaltet wird */
.theme-toggle {
  display: inline-flex; align-items: center; gap: 0.4rem; justify-content: center;
  padding: 0.5rem 0.9rem; border-radius: 999px; border: 1px solid var(--border-color);
  background: var(--bg-subtle); color: var(--text-primary); cursor: pointer;
  font-size: 0.85rem; font-weight: 600; white-space: nowrap;
}
.theme-toggle:hover { background: var(--border-color); }
.theme-toggle span { display: inline-flex; align-items: center; gap: 0.4rem; }
/* Standard/hell: naechster Klick geht in den Dunkelmodus -> Mond+"Dunkel" zeigen */
.theme-toggle .theme-icon-light { display: none; }
.theme-toggle .theme-icon-dark { display: inline-flex; }
/* Im Dunkelmodus: naechster Klick geht in den Hellmodus -> Sonne+"Hell" zeigen */
:root[data-theme="dark"] .theme-toggle .theme-icon-dark { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-icon-light { display: inline-flex; }
@media (max-width: 780px) { .theme-toggle-label { display: none; } }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid #93C5FD; outline-offset: 2px;
}

/* Hero */
.hero {
  position: relative; color: #fff; padding: 5.5rem 0 6.5rem; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: url('/assets/images/hero-kerb.jpg');
  background-size: cover; background-position: center 65%;
  filter: saturate(1.4) contrast(1.1) brightness(1.08);
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(15,15,10,0.82) 0%, rgba(15,15,10,0.6) 38%, rgba(15,15,10,0.15) 62%, rgba(15,15,10,0) 78%);
}
.hero .container { position: relative; z-index: 2; }
.hero h1 { font-size: 2.5rem; max-width: 720px; margin: 0 0 1rem; line-height: 1.22; text-shadow: 0 2px 16px rgba(0,0,0,0.55); }
.hero p.lead { font-size: 1.08rem; color: #F3F4F6; max-width: 600px; margin: 0 0 1.6rem; text-shadow: 0 1px 10px rgba(0,0,0,0.5); }
.hero-motto {
  display: flex; align-items: center; gap: 0.9rem;
  font-size: 1.55rem; font-weight: 700; font-style: italic; color: #fff; margin: 0 0 2.2rem;
  padding-left: 1.1rem; border-left: 4px solid var(--keller-rot); text-shadow: 0 1px 10px rgba(0,0,0,0.6);
}
.hero .cta-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-icon { display: inline-flex; align-items: center; gap: 0.55rem; }
.btn-icon svg { width: 1.2rem; height: 1.2rem; flex-shrink: 0; }

/* USP-Leiste */
.usp-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.75rem;
  margin: -4rem auto 4rem; max-width: 1180px; padding: 0 1.25rem; position: relative; z-index: 5;
}
.usp-card {
  position: relative; overflow: hidden;
  background: linear-gradient(165deg, rgba(17,138,59,0.07), var(--bg-surface) 55%);
  border-radius: 18px; padding: 2rem 1.5rem 1.75rem; text-align: left;
  box-shadow: 0 14px 34px -10px var(--shadow-color);
  border: 1px solid var(--border-color);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.usp-card:nth-child(2n) { background: linear-gradient(165deg, rgba(227,6,19,0.07), var(--bg-surface) 55%); }
.usp-card:nth-child(odd) { transform: translateY(-8px); }
.usp-card:hover { transform: translateY(-13px); box-shadow: 0 20px 44px -10px var(--shadow-color); }
.usp-card::after {
  content: ""; position: absolute; top: -30px; right: -30px; width: 90px; height: 90px;
  border-radius: 999px; background: radial-gradient(circle, rgba(17,138,59,0.15), transparent 70%);
}
.usp-card:nth-child(2n)::after { background: radial-gradient(circle, rgba(227,6,19,0.15), transparent 70%); }
.usp-icon {
  position: relative; width: 4rem; height: 4rem; border-radius: 16px; transform: rotate(-4deg);
  background: linear-gradient(135deg, var(--keller-gruen), var(--keller-gruen-dunkel));
  display: flex; align-items: center; justify-content: center; margin: 0 0 1.25rem;
  box-shadow: 0 10px 20px -6px rgba(17,138,59,0.55);
}
.usp-card:nth-child(2n) .usp-icon {
  background: linear-gradient(135deg, var(--keller-rot), var(--keller-rot-dunkel));
  box-shadow: 0 10px 20px -6px rgba(227,6,19,0.5); transform: rotate(4deg);
}
.usp-icon svg { transform: rotate(4deg); }
.usp-card:nth-child(2n) .usp-icon svg { transform: rotate(-4deg); }
.usp-card h3 { font-size: 1.08rem; margin: 0 0 0.45rem; color: var(--text-primary); position: relative; }
.usp-card p { font-size: 0.88rem; color: var(--text-secondary); margin: 0; line-height: 1.55; position: relative; }
@media (max-width: 920px) { .usp-card:nth-child(odd) { transform: translateY(0); } }

/* Section headings */
.section { padding: 3.5rem 0; }
.section h2 {
  font-size: 1.7rem; text-align: center; margin: 0 0 0.5rem;
}
.section .section-lead { text-align: center; color: var(--text-secondary); max-width: 620px; margin: 0 auto 2.5rem; }
.section-underline {
  width: 64px; height: 4px; background: var(--keller-gruen); border-radius: 2px;
  margin: 0.5rem auto 2.5rem;
}

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.card {
  border: 1px solid var(--border-color); border-radius: var(--radius); overflow: hidden; background: var(--bg-surface);
  display: flex; flex-direction: column;
}
.card-media {
  aspect-ratio: 4 / 3; background: linear-gradient(135deg, #eef1f5, #F8F9FB);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem;
  color: #B8C0CC; position: relative;
}
.card-media img { max-width: 88%; max-height: 88%; object-fit: contain; cursor: zoom-in; }

/* Lightbox: Klick auf ein Artikelfoto vergrößert es */
.lightbox-overlay {
  position: fixed; inset: 0; background: rgba(10,12,16,0.88); z-index: 1000;
  display: none; align-items: center; justify-content: center; padding: 3rem; cursor: zoom-out;
}
.lightbox-overlay.active { display: flex; }
.lightbox-overlay img { max-width: 90vw; max-height: 88vh; border-radius: 10px; box-shadow: 0 24px 60px -12px rgba(0,0,0,0.6); }
.lightbox-close {
  position: absolute; top: 1.25rem; right: 1.5rem; background: none; border: none; color: #fff;
  font-size: 2rem; line-height: 1; cursor: pointer; padding: 0.25rem 0.6rem;
}
.card-media .foto-hint { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.04em; color: #4B5563; text-transform: uppercase; }
.card-body { padding: 1.1rem 1.15rem 1.3rem; display: flex; flex-direction: column; gap: 0.4rem; flex: 1; }
.card-body h3 { margin: 0; font-size: 1.02rem; }
.card-body p { margin: 0; font-size: 0.87rem; color: var(--text-secondary); flex: 1; }
.card-cta { color: var(--keller-gruen); font-weight: 700; font-size: 0.85rem; text-decoration: none; }
.card-cta-btn {
  display: block; text-align: center; text-decoration: none; color: #fff; background: var(--keller-gruen);
  font-weight: 700; font-size: 0.88rem; padding: 0.6rem 1rem; border-radius: 8px; margin-top: 0.3rem;
}
.card-cta-btn:hover { filter: brightness(0.94); }

/* Artikel-Detailseite */
.detail-back-link { display: inline-block; color: var(--keller-gruen); font-weight: 600; font-size: 0.88rem; text-decoration: none; }
.detail-back-link:hover { text-decoration: underline; }
.article-detail {
  display: grid; grid-template-columns: minmax(0, 420px) 1fr; gap: 2.5rem;
  margin-top: 1.25rem; margin-bottom: 2.5rem; align-items: start;
}
.article-detail-media {
  aspect-ratio: 4 / 3; background: var(--bg-subtle); border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem; overflow: hidden;
}
.article-detail-media img { width: 100%; height: 100%; object-fit: cover; }
.article-detail-category {
  display: inline-block; background: var(--bg-subtle); color: var(--keller-gruen); font-weight: 700;
  font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.04em; padding: 0.3rem 0.7rem; border-radius: 999px; margin-bottom: 0.6rem;
}
.article-detail-info h1 { margin: 0 0 0.6rem; font-size: 1.7rem; }
.article-detail-price { font-weight: 700; color: var(--keller-rot); font-size: 1.05rem; margin: 0 0 1rem; }
.article-detail-description { color: var(--text-secondary); line-height: 1.7; margin-bottom: 1.5rem; }
.article-detail-cta { max-width: 260px; }
.article-detail-tech { margin-bottom: 2.5rem; }
.article-detail-tech h2 { display: flex; align-items: center; gap: 0.6rem; font-size: 1.2rem; margin: 0 0 1rem; }
.tech-heading-icon {
  display: inline-flex; align-items: center; justify-content: center; width: 2rem; height: 2rem;
  border-radius: 8px; background: var(--bg-subtle); color: var(--keller-gruen); flex-shrink: 0;
}
.tech-heading-icon--requirement { background: var(--bg-subtle); color: var(--keller-gruen); }
.requirement-intro { color: var(--text-secondary); font-size: 0.9rem; margin: 0 0 0.9rem; }
.requirement-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.requirement-list li {
  display: flex; align-items: flex-start; gap: 0.65rem; background: var(--bg-subtle);
  border-radius: 8px; padding: 0.65rem 0.9rem; font-size: 0.92rem; color: var(--text-primary); line-height: 1.5;
}
.requirement-icon { color: var(--keller-gruen); flex-shrink: 0; margin-top: 0.1rem; }
.tech-data-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0.6rem; }
.tech-data-card {
  background: var(--bg-subtle); border: 1px solid var(--border-color); border-radius: 8px;
  padding: 0.6rem 0.75rem; display: flex; flex-direction: column; gap: 0.2rem; min-width: 0;
}
.tech-data-card-label {
  font-size: 0.72rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.03em;
  overflow-wrap: break-word; hyphens: auto;
}
.tech-data-card-value {
  font-size: 0.92rem; font-weight: 700; color: var(--text-primary); line-height: 1.35;
  overflow-wrap: break-word; hyphens: auto;
}
.price-on-request-note {
  background: var(--bg-subtle); border-left: 4px solid var(--keller-gruen); border-radius: 0 8px 8px 0;
  padding: 0.9rem 1.1rem; margin: 0 0 1.25rem; color: var(--text-primary); font-size: 0.92rem; line-height: 1.6;
}

/* Preis-Karten: jede Preisangabe als eigene Kachel statt einer schlichten
   Tabellenzeile — wirkt hochwertiger und ist auf einen Blick erfassbar. */
.price-cards { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0 0 0.75rem; }
.price-card {
  background: var(--bg-subtle); border: 1px solid var(--border-color);
  border-radius: 10px; padding: 0.85rem 1.1rem; text-align: center; display: flex; flex-direction: column; gap: 0.25rem;
  flex: 0 0 130px; width: 130px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.price-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px var(--shadow-color); }
.price-card-amount { font-size: 1.4rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.01em; }
.price-card-period { font-size: 0.8rem; font-weight: 600; color: var(--keller-gruen); text-transform: uppercase; letter-spacing: 0.04em; }
.price-card--note {
  flex: 1 1 100%; width: auto; text-align: left; flex-direction: row;
  align-items: center; font-weight: 600; color: var(--text-primary); font-style: italic;
}
.price-table-footnote { color: var(--text-secondary); font-size: 0.82rem; margin: 0.75rem 0 1.25rem; }
@media (max-width: 720px) {
  .article-detail { grid-template-columns: 1fr; }
  .article-detail-media { aspect-ratio: 16 / 10; }
}

/* Kategorie-Filter */
.filter-pills { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 1.5rem 0 2.5rem; }
.filter-pill {
  text-decoration: none; padding: 0.45rem 1rem; border-radius: 999px; font-size: 0.88rem; font-weight: 600;
  background: var(--bg-subtle); color: var(--text-primary);
}
.filter-pill.active { background: var(--keller-gruen); color: #fff; }
.filter-pill:hover:not(.active) { background: var(--border-color); }

/* Trust-Leiste unter Katalogen */
.trust-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; text-align: center;
  border-top: 1px solid var(--border-color); padding-top: 2rem; margin-top: 2.5rem;
}
.trust-row .trust-icon { color: var(--keller-gruen); display: flex; justify-content: center; margin-bottom: 0.5rem; }
.trust-row h4 { margin: 0 0 0.2rem; font-size: 0.92rem; }
.trust-row p { margin: 0; font-size: 0.82rem; color: var(--text-secondary); }
@media (max-width: 620px) { .trust-row { grid-template-columns: 1fr; } }

/* CTA Banner */
.cta-banner {
  background: var(--keller-gruen); color: #fff; border-radius: var(--radius);
  padding: 2rem 2.25rem; display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
}
.cta-banner h2 { margin: 0 0 0.2rem; font-size: 1.3rem; }
.cta-banner p { margin: 0; color: #DCFCE7; }

/* Events */
.event-list { display: grid; gap: 0.9rem; }
.event-item {
  display: flex; gap: 1rem; align-items: center; border: 1px solid var(--border-color); border-radius: var(--radius);
  padding: 1rem 1.2rem; background: var(--bg-surface);
}
.event-date {
  background: var(--bg-subtle); border-radius: 8px; padding: 0.5rem 0.8rem; text-align: center;
  font-weight: 700; color: var(--keller-gruen); min-width: 84px; font-size: 0.85rem;
}
.event-item h3 { margin: 0 0 0.15rem; font-size: 1rem; }
.event-item p { margin: 0; color: var(--text-secondary); font-size: 0.85rem; }

/* Footer */
.site-footer { background: var(--dunkel); color: #D1D5DB; margin-top: 3rem; }
.footer-badges {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1); padding: 2.5rem 0; text-align: center;
}
.footer-badges .badge-icon {
  display: flex; align-items: center; justify-content: center; margin: 0 auto 0.85rem;
  width: 3.4rem; height: 3.4rem; border-radius: 999px;
  background: rgba(17,138,59,0.14); border: 1px solid rgba(17,138,59,0.35);
}
.footer-badges .badge-label { font-size: 0.9rem; color: #F3F4F6; font-weight: 700; margin-bottom: 0.2rem; }
.footer-badges .badge-sub { font-size: 0.78rem; color: #9CA3AF; }
.footer-main { padding: 2.5rem 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer-main h3 { color: #fff; font-size: 0.95rem; margin: 0 0 0.75rem; }
.footer-main a { color: #D1D5DB; text-decoration: none; display: block; margin-bottom: 0.5rem; font-size: 0.88rem; }
.footer-main a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding: 1.25rem 0;
  font-size: 0.8rem; color: #9CA3AF; text-align: center;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem;
}
.footer-credit { display: inline-flex; align-items: center; gap: 0.35rem; }
.footer-credit a { color: #9CA3AF; text-decoration: none; }
.footer-credit a:hover { color: #fff; text-decoration: underline; }
.footer-credit .heart { color: var(--keller-rot); display: inline-block; animation: heartbeat 1.6s ease-in-out infinite; }
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.25); }
  30% { transform: scale(1); }
  45% { transform: scale(1.18); }
  60% { transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .footer-credit .heart { animation: none; }
}
/* Simple content pages */
.page-header { background: var(--bg-subtle); padding: 2.5rem 0; margin-bottom: 2.5rem; }
.page-header h1 { margin: 0 0 0.4rem; font-size: 1.9rem; }
.page-header p { margin: 0; color: var(--text-secondary); }
.prose { max-width: 760px; margin: 0 auto; padding-bottom: 3rem; }

.about-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 3rem; align-items: start; padding-bottom: 3rem; }
.about-layout.about-layout--no-photo { grid-template-columns: 1fr; }
.about-layout .prose { max-width: none; }
.about-photo {
  position: sticky; top: 6rem; max-width: 320px; margin-left: auto;
  border-radius: var(--radius); overflow: hidden; box-shadow: 0 16px 40px -14px var(--shadow-color);
}
.about-photo img { width: 100%; height: auto; display: block; }
@media (max-width: 860px) {
  .about-layout { grid-template-columns: 1fr; }
  .about-photo { position: static; max-width: 420px; margin: 0 auto; }
}
.prose pre { white-space: pre-wrap; font-family: inherit; font-size: 0.95rem; line-height: 1.7; }
.prose ul { padding-left: 0; list-style: none; display: grid; gap: 0.6rem; }
.prose ul li {
  display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.98rem;
}
.prose ul li::before {
  content: ""; flex-shrink: 0; margin-top: 0.35rem; width: 0.85rem; height: 0.85rem; border-radius: 999px;
  background: var(--keller-gruen);
}

.motto-quote {
  position: relative; margin: 2.25rem 0; padding: 1.75rem 2rem 1.75rem 2.75rem;
  background: linear-gradient(135deg, rgba(17,138,59,0.08), rgba(227,6,19,0.05));
  border-left: 5px solid var(--keller-rot); border-radius: 0 14px 14px 0;
  font-size: 1.35rem; font-weight: 700; font-style: italic; color: var(--text-primary);
}
.motto-quote::before {
  content: "\201C"; position: absolute; left: 0.6rem; top: 0.4rem; font-size: 3rem; font-style: normal;
  font-weight: 800; color: var(--keller-rot); opacity: 0.35; line-height: 1;
}
.contact-grid { display: grid; grid-template-columns: 340px 1fr; gap: 2.5rem; padding-bottom: 3rem; align-items: start; }
.contact-info div { margin-bottom: 1rem; }
.contact-info .label { font-weight: 700; font-size: 0.85rem; color: var(--keller-gruen); text-transform: uppercase; letter-spacing: 0.03em; }

/* Formulare (Kontakt, Anmeldung, Passwort etc.) — einheitlich im Keller-Design */
.form-card {
  max-width: 480px; margin: 0 auto; background: var(--bg-surface); border: 1px solid var(--border-color);
  border-radius: var(--radius); padding: 2.25rem 2rem; box-shadow: 0 10px 30px -10px var(--shadow-color);
}
.form-card.form-card--wide { max-width: 720px; }
.form-card h1 { margin: 0 0 0.3rem; font-size: 1.5rem; }
.form-card .lead { color: var(--text-secondary); margin: 0 0 1.5rem; }
.form-card label { display: block; font-weight: 600; margin: 1rem 0 0.35rem; font-size: 0.92rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.25rem; }
.form-row .form-field label { margin-top: 1rem; }
@media (max-width: 620px) { .form-row { grid-template-columns: 1fr; } }
.form-card input[type=text], .form-card input[type=email], .form-card input[type=password],
.form-card input[type=tel], .form-card input[type=date], .form-card select, .form-card textarea {
  width: 100%; padding: 0.65rem 0.8rem; border: 1px solid var(--border-color); border-radius: 8px;
  font-size: 1rem; background: var(--bg-page); color: var(--text-primary); font-family: inherit;
  color-scheme: inherit;
}
.form-card input[type=date]::-webkit-calendar-picker-indicator { cursor: pointer; border-radius: 4px; }
.radio-fieldset { border: 0; padding: 0; margin: 1rem 0 0; }
.radio-fieldset legend { display: block; width: 100%; padding: 0; font-weight: 600; font-size: 0.92rem; margin: 0 0 0.35rem; }
.radio-row { display: flex; gap: 1.5rem; flex-wrap: wrap; margin: 0.35rem 0 0; }
.radio-option { display: flex; align-items: center; gap: 0.4rem; font-weight: 400; margin: 0; }
.radio-option input[type=radio] { width: auto; }
#event_location_hint { font-weight: 400; color: var(--text-secondary); font-size: 0.82rem; }

.items-row { display: flex; gap: 0.75rem; align-items: flex-end; margin-bottom: 0.75rem; flex-wrap: wrap; }
.items-row-field { display: flex; flex-direction: column; }
.items-row-field--article { flex: 1 1 260px; min-width: 200px; }
.items-row-field--quantity { flex: 0 0 90px; }
.items-row-field--remove { flex: 0 0 auto; }
.items-row-label { font-weight: 600; margin: 0 0 0.35rem; font-size: 0.85rem; }
.items-row-field--article select, .items-row-field--quantity input {
  width: 100%; padding: 0.65rem 0.8rem; border: 1px solid var(--border-color); border-radius: 8px;
  font-size: 1rem; background: var(--bg-page); color: var(--text-primary); font-family: inherit;
}
.items-row-field--remove button { white-space: nowrap; }

.items-section-heading {
  font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin: 1.5rem 0 0.3rem;
  padding-left: 0.7rem; border-left: 3px solid var(--keller-gruen);
}
.items-section-heading span { font-weight: 400; color: var(--text-secondary); font-size: 0.85rem; }

.items-add-btn, .items-remove-btn {
  display: inline-flex; align-items: center; gap: 0.35rem; font-weight: 600; font-size: 0.88rem;
  padding: 0.6rem 1rem; border-radius: 8px; cursor: pointer; white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.items-add-btn {
  margin-top: 0.25rem; background: transparent; border: 1px solid var(--keller-gruen); color: var(--keller-gruen);
}
.items-add-btn:hover { background: var(--keller-gruen); color: #fff; }
.items-remove-btn { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); }
.items-remove-btn:hover { background: var(--keller-rot); border-color: var(--keller-rot); color: #fff; }
.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  outline: 3px solid #93C5FD; outline-offset: 1px;
}
.form-card button[type=submit] { margin-top: 1.5rem; width: 100%; }
.form-card .help { font-size: 0.85rem; color: var(--text-secondary); margin-top: 0.3rem; }
.form-card .form-links { margin-top: 1.25rem; font-size: 0.9rem; text-align: center; }
.form-card .form-links a { color: var(--keller-gruen); font-weight: 600; text-decoration: none; }
.form-card .form-links a:hover { text-decoration: underline; }
.form-card .alert { margin-top: 0; margin-bottom: 1rem; padding: 0.8rem 1rem; border-radius: 8px; font-size: 0.92rem; }
.form-card .alert-error { background: #FDECEC; color: #9B1C1C; border: 1px solid #F5C2C2; }
.form-card .alert-success { background: #E7F6EC; color: #146C2E; border: 1px solid #BFE6CB; }
.form-card .qr-box { text-align: center; margin: 1.25rem 0; }
.form-card .qr-box svg { max-width: 200px; height: auto; }
.form-card code.secret { display: inline-block; background: var(--bg-subtle); padding: 0.4rem 0.6rem; border-radius: 6px; letter-spacing: 0.05em; font-size: 0.9rem; }
.form-card .recovery-codes {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem; background: var(--bg-subtle);
  padding: 1rem; border-radius: 8px; font-family: monospace; font-size: 0.95rem;
}
.honeypot-field { position: absolute; left: -9999px; top: -9999px; }

@media (max-width: 920px) {
  .usp-grid, .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; }
  .footer-badges { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 780px) {
  .nav-toggle-label { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    display: none; flex-direction: column; align-items: flex-start; gap: 0.25rem;
    width: 100%; order: 3; padding-top: 0.75rem; border-top: 1px solid var(--border-color); margin-top: 0.75rem;
  }
  .nav-toggle-input:checked ~ .site-nav { display: flex; }
  .site-nav a { width: 100%; padding: 0.6rem 0.2rem; }
}

@media (max-width: 620px) {
  .usp-grid, .card-grid, .footer-badges { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}