/* ============================================================
   jantke.net – Demo-Webseite
   Kai Jantke – VdS-Sachverständiger Elektrotechnik & PV
   ============================================================ */

:root {
  --color-primary:    #0a1628;
  --color-secondary:  #1a2e50;
  --color-accent:     #0057A8;
  --color-accent-light: #1a78d4;
  --color-bg:         #f4f5f7;
  --color-surface:    #ffffff;
  --color-text:       #1e2533;
  --color-text-muted: #5a6278;
  --color-border:     #dde1ea;
  --color-hero-overlay: rgba(10, 22, 40, 0.85);

  --font-main: 'Inter', 'DM Sans', system-ui, sans-serif;
  --radius: 6px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.07);
  --shadow-hover: 0 6px 24px rgba(0,87,168,0.12);
  --transition: 0.2s ease;

  --max-width: 1100px;
  --section-padding: 96px 24px;
}

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 64px;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

ul { list-style: none; }

/* ── Utility ──────────────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.9rem, 3.8vw, 2.7rem);
  color: var(--color-primary);
  margin-top: 6px;
  margin-bottom: 18px;
}

.section-intro {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 52px;
  line-height: 1.9;
}

/* ── Navigation ───────────────────────────────────────────── */
#site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav-logo span {
  color: var(--color-accent-light);
  transition: color 0.25s ease, text-shadow 0.25s ease;
}
.nav-logo:hover span {
  color: #60b4ff;
  text-shadow: 0 0 14px rgba(96,180,255,0.55);
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
  text-decoration: none;
}
.nav-links a.nav-cta {
  color: #fff;
  background: var(--color-accent);
  padding: 7px 16px;
}
.nav-links a.nav-cta:hover {
  background: var(--color-accent-light);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #fff;
}

/* ── Hero ─────────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #0a1628 0%, #0f2547 50%, #0a1628 100%);
  position: relative;
  overflow: hidden;
}

/* .hero-bg-pattern replaced by inline SVG .hero-anim */

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 120px 24px 80px;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 20px;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-accent-light);
}

#hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  color: #fff;
  margin-bottom: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255,255,255,0.6);
  font-weight: 400;
  margin-bottom: 28px;
}

.hero-tagline {
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  color: rgba(255,255,255,0.95);
  max-width: 700px;
  line-height: 1.75;
  margin-top: 8px;
  margin-bottom: 52px;
  font-style: italic;
  font-weight: 600;
  letter-spacing: -0.01em;
  border-left: 4px solid var(--color-accent);
  padding: 20px 26px;
  background: rgba(0,87,168,0.12);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,87,168,0.35);
}
.btn-primary:hover {
  background: var(--color-accent-light);
  box-shadow: 0 6px 20px rgba(0,87,168,0.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.7);
}

/* ── Trust bar (hero bottom) ──────────────────────────────── */
.hero-trust {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.65);
  font-size: 0.85rem;
  font-weight: 500;
}
.trust-item svg { color: var(--color-accent-light); flex-shrink: 0; }

/* ── Section defaults ─────────────────────────────────────── */
section {
  padding: var(--section-padding);
}

section:nth-child(even) {
  background: var(--color-surface);
}

/* ── Leistungen ───────────────────────────────────────────── */
#leistungen {
  background: var(--color-bg);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.28s ease, transform 0.28s ease, border-color 0.28s ease;
}
.card:hover {
  box-shadow: 0 18px 52px rgba(0,87,168,0.18), inset 0 3px 0 var(--color-accent);
  transform: translateY(-8px);
  border-color: rgba(0,87,168,0.25);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(0,87,168,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.card h3 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.card .card-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(0,87,168,0.08);
  padding: 3px 9px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* ── Über mich ────────────────────────────────────────────── */
#ueber-mich {
  background: var(--color-surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about-text p {
  margin-bottom: 16px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.about-text p strong {
  color: var(--color-text);
}

.about-motto {
  margin-top: 28px;
  padding: 20px 24px;
  background: var(--color-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.about-motto blockquote {
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.6;
}

.about-stats {
  display: grid;
  gap: 20px;
}

.stat-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  border-left: 3px solid var(--color-accent);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.video-container {
  margin-top: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  box-shadow: var(--shadow-card);
}

.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.yt-thumb-link {
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  background: #000;
  text-decoration: none;
}
.yt-thumb-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}
.yt-thumb-link:hover img { opacity: 0.65; }

.yt-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 68px;
  background: rgba(220, 0, 0, 0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  padding-left: 4px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  transition: background 0.2s ease, transform 0.2s ease;
}
.yt-thumb-link:hover .yt-play-btn {
  background: #cc0000;
  transform: translate(-50%, -50%) scale(1.1);
}

.yt-label {
  position: absolute;
  bottom: 12px;
  right: 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  background: rgba(0,0,0,0.55);
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

/* ── So bin ich nicht ─────────────────────────────────────── */
#nicht {
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}
#nicht::before {
  content: '✕';
  position: absolute;
  right: -2%;
  top: -15%;
  font-size: clamp(14rem, 28vw, 24rem);
  font-weight: 900;
  color: rgba(255,255,255,0.022);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.nicht-inner {
  max-width: 960px;
  position: relative;
  z-index: 1;
}

.nicht-inner .section-title {
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  margin-bottom: 10px;
}

.nicht-intro {
  color: rgba(255,255,255,0.7);
  margin-bottom: 44px;
  max-width: 640px;
  line-height: 1.85;
  font-size: 1.05rem;
}

.nicht-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-bottom: 44px;
}

.nicht-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255,255,255,0.04);
  border: none;
  border-left: 3px solid rgba(248,113,113,0.35);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px;
  transition: background 0.2s ease, border-left-color 0.2s ease;
}
.nicht-item:hover {
  background: rgba(255,255,255,0.08);
  border-left-color: rgba(248,113,113,0.75);
}

.nicht-item .nicht-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  background: rgba(220,38,38,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f87171;
  margin-top: 1px;
}

.nicht-item p {
  font-size: 0.96rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.72;
}
.nicht-item p strong {
  color: #fff;
  font-weight: 700;
}

.nicht-conclusion {
  background: rgba(0,87,168,0.15);
  border: none;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 24px 28px;
  color: rgba(255,255,255,0.9);
  line-height: 1.9;
  font-size: 1rem;
  font-style: italic;
}

/* ── Prüfgrundlagen / SK3602 ──────────────────────────────── */
#pruefgrundlagen {
  background: var(--color-bg);
}

.pruef-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.pruef-grid > div {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.info-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-card);
  flex: 1;
}

.info-box h3 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.info-box p, .info-box li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.info-box ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-box li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.info-box li::before {
  content: '→';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.link-box {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.doc-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.88rem;
  font-weight: 500;
  transition: border-color var(--transition), background var(--transition);
}
.doc-link:hover {
  border-color: var(--color-accent);
  background: rgba(0,87,168,0.04);
  text-decoration: none;
  color: var(--color-accent);
}
.doc-link svg { color: var(--color-accent); flex-shrink: 0; }

/* ── Photovoltaik ─────────────────────────────────────────── */
#photovoltaik {
  background: var(--color-surface);
}

.pv-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  transition: background var(--transition);
}
.accordion-trigger:hover { background: rgba(0,87,168,0.04); }
.accordion-trigger[aria-expanded="true"] {
  background: rgba(0,87,168,0.06);
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-border);
}

.accordion-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgba(0,87,168,0.1);
  color: var(--color-accent);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.accordion-trigger[aria-expanded="true"] .accordion-number {
  background: var(--color-accent);
  color: #fff;
}

.accordion-chevron {
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--color-text-muted);
}
.accordion-trigger[aria-expanded="true"] .accordion-chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.accordion-content {
  display: none;
  padding: 14px 18px 16px 54px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}
.accordion-content.open { display: block; }

.pv-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 80px;
}

.pv-offer-box {
  background: var(--color-primary);
  color: #fff;
  border-radius: 10px;
  padding: 28px;
  box-shadow: var(--shadow-hover);
}

.pv-offer-box h3 {
  font-size: 1.05rem;
  margin-bottom: 14px;
  color: #fff;
}

.offer-detail {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.8);
}
.offer-detail svg { color: var(--color-accent-light); flex-shrink: 0; margin-top: 2px; }

.pv-info-note {
  background: rgba(0,87,168,0.08);
  border: 1px solid rgba(0,87,168,0.2);
  border-radius: var(--radius);
  padding: 20px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* ── Zertifizierungen ─────────────────────────────────────── */
#zertifizierungen {
  background: var(--color-primary);
}
#zertifizierungen .section-label { color: var(--color-accent-light); }
#zertifizierungen .section-title { color: #fff; }
#zertifizierungen .section-intro { color: rgba(255,255,255,0.6); }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.cert-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 24px 24px;
  text-align: center;
  box-shadow: none;
  transition: box-shadow 0.28s ease, transform 0.28s ease, background 0.28s ease, border-color 0.28s ease;
  display: block;
  color: inherit;
}
.cert-card:hover {
  box-shadow: 0 14px 44px rgba(0,87,168,0.32);
  transform: translateY(-6px);
  background: rgba(255,255,255,0.09);
  border-color: var(--color-accent);
  text-decoration: none;
}

.cert-badge-icon {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.07);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  color: var(--color-accent-light);
  border: 2px solid rgba(255,255,255,0.15);
}

.cert-card h3 {
  font-size: 0.95rem;
  color: #fff;
  margin-bottom: 8px;
}

.cert-card p {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
  margin-bottom: 12px;
}

.cert-link-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Light variant for cert cards on white/light backgrounds */
.cert-grid--light .cert-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}
.cert-grid--light .cert-card:hover {
  background: var(--color-surface);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}
.cert-grid--light .cert-card h3 {
  color: var(--color-primary);
}
.cert-grid--light .cert-card p {
  color: var(--color-text-muted);
}
.cert-grid--light .cert-badge-icon {
  background: rgba(0,87,168,0.08);
  border-color: rgba(0,87,168,0.15);
  color: var(--color-accent);
}
.cert-grid--light .cert-meta {
  color: var(--color-text-muted);
}
.cert-grid--light .cert-link-label {
  color: var(--color-accent);
}

/* ── Kontakt ──────────────────────────────────────────────── */
#kontakt {
  background: var(--color-surface);
}

.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: center;
}

.kontakt-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.kontakt-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.kontakt-row-icon {
  width: 42px;
  height: 42px;
  background: rgba(0,87,168,0.08);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

.kontakt-row-icon svg {
  width: 22px;
  height: 22px;
}

.kontakt-row-text {
  display: flex;
  flex-direction: column;
  gap: 0px;
}

.kontakt-row-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: -1px;
  line-height: 1.2;
}

.kontakt-row-value {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.3;
}

.kontakt-row-value a {
  color: var(--color-text);
}
.kontakt-row-value a:hover {
  color: var(--color-accent);
}

.honorar-note {
  margin-top: 50px;
  padding: 18px 20px;
  background: rgba(0,87,168,0.05);
  border: 1px solid rgba(0,87,168,0.15);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  width: 100%;
}

.kontakt-cta {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 36px 32px;
}

.kontakt-cta h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.kontakt-cta p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 24px;
}

.tel-link-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.tel-link-large:hover {
  text-decoration: none;
  color: var(--color-accent-light);
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.5);
  padding: 32px 24px;
  font-size: 0.82rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-inner a {
  color: rgba(255,255,255,0.5);
}
.footer-inner a:hover {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 20px;
}

/* ── Scroll-to-top ────────────────────────────────────────── */
#scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,87,168,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 50;
}
#scroll-top.visible {
  opacity: 1;
  pointer-events: all;
}
#scroll-top:hover { transform: translateY(-2px); }

/* ── Hero SVG animation ───────────────────────────────────── */
.hero-anim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.htrace {
  animation: traceReveal 12s ease-out forwards;
}
.ht1 { animation-delay: 0.2s; }
.ht2 { animation-delay: 1.0s; }
.ht3 { animation-delay: 1.8s; }
.current {
  animation: currentFlow 6s linear infinite;
}
.cr2 { animation-delay: -3s; }
.jdot {
  animation: dotGlow 3.5s ease-in-out infinite;
}
.jd1 { animation-delay: 0s; }
.jd2 { animation-delay: 0.5s; }
.jd3 { animation-delay: 1.0s; }
.jd4 { animation-delay: 1.5s; }
.jd5 { animation-delay: 2.0s; }
.jd6 { animation-delay: 2.5s; }

@keyframes traceReveal {
  from { stroke-dashoffset: 2600; opacity: 0; }
  5%   { opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0.55; }
}
@keyframes currentFlow {
  from { stroke-dashoffset:  400; }
  to   { stroke-dashoffset: -2200; }
}
@keyframes dotGlow {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 1; }
}

/* ── Subpage hero ────────────────────────────────────────── */
.subpage-hero {
  padding-top: 140px;
  padding-bottom: 48px;
  background: var(--color-bg);
}

.subpage-hero--dark {
  background: var(--color-primary);
}

/* ── PV Teaser (index.html) ──────────────────────────────── */
.pv-teaser {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
}

.pv-teaser-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.pv-teaser-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
}
.pv-teaser-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.pv-teaser-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Prüfgrundlagen CTA ──────────────────────────────────── */
.pruef-cta {
  margin-top: 40px;
  padding: 28px 32px;
  background: rgba(0,87,168,0.06);
  border: 1px solid rgba(0,87,168,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.pruef-cta p {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}

/* ── Nav active state ────────────────────────────────────── */
.nav-links a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

/* ── About – ö.b.u.v. Box ────────────────────────────────── */
.about-obuv {
  margin-top: 28px;
  padding: 24px 28px;
  background: rgba(0,87,168,0.05);
  border: 1px solid rgba(0,87,168,0.15);
  border-radius: var(--radius);
}

.about-obuv h3 {
  font-size: 0.95rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.about-obuv p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 10px;
}
.about-obuv p:last-child { margin-bottom: 0; }

/* ── Cert meta (VdS numbers) ─────────────────────────────── */
.cert-meta {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 14px;
  font-family: monospace;
}

/* ── Impressum & Datenschutz (Legal sections) ────────────── */
#impressum {
  background: var(--color-bg);
}

#datenschutz {
  background: var(--color-surface);
}

.legal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.legal-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.legal-box h3 {
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.legal-box p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 12px;
}
.legal-box p:last-child { margin-bottom: 0; }

.legal-note {
  padding: 20px 24px;
  background: rgba(0,87,168,0.05);
  border: 1px solid rgba(0,87,168,0.12);
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.legal-page {
  padding-top: 140px;
}

.legal-page-content {
  padding: var(--section-padding);
}

.legal-content {
  max-width: 780px;
}

.legal-content h3 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-top: 32px;
  margin-bottom: 12px;
}
.legal-content h3:first-child { margin-top: 0; }

.legal-content p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* ── Scroll reveal ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.15s; }
.reveal-d5 { transition-delay: 0.25s; }
.reveal-d6 { transition-delay: 0.35s; }

@media (prefers-reduced-motion: reduce) {
  .htrace  { animation: none; stroke-dashoffset: 0; opacity: 0.4; }
  .current { animation: none; opacity: 0; }
  .jdot    { animation: none; opacity: 0.5; }
  .reveal  { opacity: 1; transform: none; transition: none; }
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 880px) {
  :root { --section-padding: 60px 20px; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(10, 22, 40, 0.98);
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links.open a { padding: 14px 16px; font-size: 0.95rem; min-height: 44px; }
  .nav-toggle { display: flex; }

  .about-grid,
  .pruef-grid,
  .pv-grid,
  .kontakt-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .pv-aside { position: static; }

  .hero-trust { gap: 20px; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 560px) {
  .cards-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .nicht-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }
}

/* ── Overlay: Zurück zur Auswahl ────────────────── */
.in-iframe .back-to-landing { display: none !important; }
.back-to-landing {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 10000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(10, 22, 40, 0.88);
  border: 1px solid rgba(26, 120, 212, 0.4);
  border-radius: 8px;
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}
.back-to-landing:hover {
  background: rgba(26, 120, 212, 0.25);
  border-color: #1a78d4;
  transform: translateY(-1px);
  text-decoration: none;
}
.back-to-landing svg {
  flex-shrink: 0;
}
@media (max-width: 880px) {
  .back-to-landing {
    top: auto;
    bottom: 16px;
    left: 16px;
    top: unset;
  }
}