/* ============================================================
   AD INNOVATION GmbH & Co.KG — Main Stylesheet
   Fresh & Modern · Emerald Green · Digital Agency
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ─── 1. DESIGN TOKENS ─── */
:root {
  --color-bg: #f0fdf4;
  --color-surface: #ffffff;
  --color-primary: #10b981;
  --color-primary-dark: #059669;
  --color-primary-light: #d1fae5;
  --color-primary-glow: rgba(16,185,129,0.15);
  --color-secondary: #1e293b;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --shadow-soft: 0 4px 20px rgba(16,185,129,0.08);
  --shadow-medium: 0 8px 30px rgba(16,185,129,0.12);
  --shadow-hover: 0 16px 48px rgba(16,185,129,0.18);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --container: 1200px;
  --space-section: clamp(60px,10vw,120px);
  --text-xs: clamp(0.7rem,0.65rem + 0.25vw,0.8rem);
  --text-sm: clamp(0.8rem,0.75rem + 0.3vw,0.9rem);
  --text-base: clamp(0.95rem,0.9rem + 0.3vw,1.065rem);
  --text-lg: clamp(1.1rem,1rem + 0.4vw,1.25rem);
  --text-xl: clamp(1.25rem,1.1rem + 0.6vw,1.5rem);
  --text-2xl: clamp(1.5rem,1.2rem + 1vw,2rem);
  --text-3xl: clamp(1.85rem,1.4rem + 1.5vw,2.5rem);
  --text-4xl: clamp(2.2rem,1.6rem + 2vw,3.2rem);
  --text-5xl: clamp(2.6rem,1.8rem + 2.8vw,4rem);
  --ease: cubic-bezier(0.16,1,0.3,1);
  --transition: 350ms cubic-bezier(0.16,1,0.3,1);
}

/* ─── 2. RESET & BASE ─── */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:90px; }
body {
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  font-size:var(--text-base); line-height:1.7; color:var(--color-text);
  background:var(--color-bg); -webkit-font-smoothing:antialiased;
  overflow-x:hidden; min-height:100vh;
}
img,svg { display:block; max-width:100%; height:auto; }
a { color:inherit; text-decoration:none; transition:color .2s; }
button,input,textarea,select { font:inherit; color:inherit; border:none; outline:none; background:none; }
button { cursor:pointer; }
ul,ol { list-style:none; }

/* ─── 3. TYPOGRAPHY ─── */
h1,h2,h3,h4,h5,h6 { font-weight:700; line-height:1.2; color:var(--color-secondary); letter-spacing:-0.02em; }
h1 { font-size:var(--text-5xl); font-weight:800; }
h2 { font-size:var(--text-4xl); }
h3 { font-size:var(--text-2xl); }
p { margin-bottom:1em; color:var(--color-text-light); line-height:1.75; }
p:last-child { margin-bottom:0; }
strong { font-weight:600; color:var(--color-text); }
.gradient-text {
  background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 50%,#047857 100%);
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}

/* ─── 4. CONTAINER ─── */
.container { width:100%; max-width:var(--container); margin:0 auto; padding:0 clamp(16px,4vw,32px); }

/* ─── 5. HEADER / NAVIGATION ─── */
.header {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:20px 0; transition:all var(--transition);
  background:transparent;
}
.header::before {
  content:''; position:absolute; inset:0;
  background:rgba(255,255,255,0); backdrop-filter:blur(0px);
  border-bottom:1px solid transparent; transition:all var(--transition);
}
.header.scrolled { padding:12px 0; }
.header.scrolled::before {
  background:rgba(255,255,255,0.9); backdrop-filter:blur(20px);
  border-bottom:1px solid var(--color-border); box-shadow:0 1px 16px rgba(0,0,0,0.04);
}
.header-inner {
  position:relative; z-index:2; display:flex; align-items:center; justify-content:space-between;
}

/* Logo */
.logo { display:flex; align-items:center; gap:10px; font-size:var(--text-xl); font-weight:800; color:var(--color-white); letter-spacing:-0.03em; transition:color .3s; }
.logo:hover { transform:scale(1.02); }
.logo-icon { color:var(--color-primary); font-size:1.2em; }
.logo-text { transition:color .3s; }
/* When header is scrolled → dark logo */
.header.scrolled .logo { color:var(--color-secondary); }
.footer-logo { display:flex; align-items:center; gap:10px; font-size:var(--text-xl); font-weight:800; color:var(--color-white); }
.footer-logo .logo-icon { color:var(--color-primary); }

/* Nav */
.nav-menu { display:flex; align-items:center; gap:4px; }
.nav-link {
  position:relative; display:inline-flex; align-items:center; padding:8px 16px;
  font-size:var(--text-sm); font-weight:500; color:rgba(255,255,255,0.75);
  border-radius:var(--radius-sm); transition:all .3s;
}
.nav-link:hover,.nav-link.active { color:var(--color-white); background:rgba(255,255,255,0.1); }
/* When header is scrolled → dark nav links */
.header.scrolled .nav-link { color:var(--color-text-light); }
.header.scrolled .nav-link:hover,.header.scrolled .nav-link.active { color:var(--color-primary); background:var(--color-primary-light); }
.nav-link::after {
  content:''; position:absolute; bottom:2px; left:16px; right:16px; height:2px;
  background:var(--color-primary); border-radius:2px; transform:scaleX(0); transition:transform .2s;
}
.nav-link:hover::after,.nav-link.active::after { transform:scaleX(1); }
.btn-nav { margin-left:12px; }

/* ─── 6. HAMBURGER MENU ─── */
.nav-toggle {
  display:none; flex-direction:column; justify-content:center; align-items:center;
  width:44px; height:44px; gap:6px; z-index:1010; border-radius:var(--radius-sm);
}
.nav-toggle:hover { background:var(--color-primary-light); }
.nav-toggle span {
  display:block; width:24px; height:2px; background:var(--color-white);
  border-radius:2px; transition:all .3s var(--ease); transform-origin:center;
}
.header.scrolled .nav-toggle span { background:var(--color-secondary); }
.nav-toggle.active span:nth-child(1) { transform:translateY(8px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity:0; transform:scaleX(0); }
.nav-toggle.active span:nth-child(3) { transform:translateY(-8px) rotate(-45deg); }

/* ─── 7. BUTTONS ─── */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 28px; font-size:var(--text-sm); font-weight:600; border-radius:var(--radius-sm);
  transition:all .3s var(--ease); cursor:pointer; white-space:nowrap;
}
.btn-primary {
  background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));
  color:var(--color-white); box-shadow:0 4px 16px rgba(16,185,129,0.3);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(16,185,129,0.4); }
.btn-outline {
  border:2px solid var(--color-primary); color:var(--color-primary); background:transparent;
}
.btn-outline:hover { background:var(--color-primary); color:var(--color-white); }
.btn-white { background:var(--color-white); color:var(--color-secondary); }
.btn-white:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(0,0,0,0.15); }
.btn-outline-white { border:2px solid rgba(255,255,255,0.3); color:var(--color-white); }
.btn-outline-white:hover { background:rgba(255,255,255,0.1); border-color:rgba(255,255,255,0.6); }
.btn-lg { padding:16px 36px; font-size:var(--text-base); border-radius:var(--radius); }
.btn-block { width:100%; }

/* ─── 8. HERO ─── */
.hero {
  position:relative; min-height:100vh; display:flex; align-items:center;
  padding-top:100px; padding-bottom:60px; overflow:hidden;
  background:linear-gradient(160deg,var(--color-secondary) 0%,#0f172a 40%,#064e3b 100%);
}
.hero-bg { position:absolute; inset:0; pointer-events:none; }
.hero-gradient {
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%,rgba(16,185,129,0.15),transparent 70%),
    radial-gradient(ellipse 50% 80% at 20% 80%,rgba(16,185,129,0.1),transparent 60%);
}
.hero-pattern {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:60px 60px;
}
.hero-content { position:relative; z-index:2; max-width:720px; }
.hero-badge {
  display:inline-flex; align-items:center; gap:8px; padding:8px 18px;
  background:rgba(16,185,129,0.12); border:1px solid rgba(16,185,129,0.25);
  border-radius:var(--radius-full); font-size:var(--text-xs); font-weight:600;
  color:var(--color-primary); text-transform:uppercase; letter-spacing:0.08em;
  margin-bottom:24px; backdrop-filter:blur(8px);
}
.badge-dot {
  width:8px; height:8px; background:var(--color-primary); border-radius:50%;
  animation:pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.4)} }
.hero-title { font-size:var(--text-5xl); font-weight:800; color:var(--color-white)!important; line-height:1.1; margin-bottom:24px; letter-spacing:-0.03em; }
.hero-title .gradient-text { background:linear-gradient(135deg,#6ee7b7,#10b981,#059669); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.hero-subtitle { font-size:var(--text-lg); color:rgba(255,255,255,0.7)!important; margin-bottom:40px; max-width:560px; line-height:1.7; }
.hero-actions { display:flex; flex-wrap:wrap; gap:16px; align-items:center; }
.hero-stats { display:flex; gap:40px; margin-top:56px; padding-top:32px; border-top:1px solid rgba(255,255,255,0.08); }
.hero-stat-number { font-size:var(--text-3xl); font-weight:800; color:var(--color-primary); letter-spacing:-0.02em; display:block; }
.hero-stat-label { font-size:var(--text-sm); color:rgba(255,255,255,0.5); margin-top:4px; display:block; }
.hero-scroll { position:absolute; bottom:30px; left:50%; transform:translateX(-50%); text-align:center; z-index:2; color:rgba(255,255,255,0.4); font-size:var(--text-xs); }
.scroll-arrow { width:2px; height:30px; background:linear-gradient(to bottom,var(--color-primary),transparent); margin:8px auto 0; animation:scroll-bounce 2s infinite; }
@keyframes scroll-bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(8px)} }

/* Hero subpage */
.hero-sub { min-height:40vh; padding-top:120px; padding-bottom:40px; }
.hero-sub .hero-title { font-size:var(--text-4xl); }

/* ─── 9. SECTIONS ─── */
.section { padding:var(--space-section) 0; position:relative; }
.section-header { text-align:center; margin-bottom:clamp(40px,6vw,64px); }
.section-tag {
  display:inline-flex; align-items:center; gap:8px; font-size:var(--text-sm); font-weight:600;
  text-transform:uppercase; letter-spacing:0.1em; color:var(--color-primary); margin-bottom:16px;
}
.section-tag::before { content:''; display:inline-block; width:24px; height:2px; background:var(--color-primary); border-radius:2px; }
.section-title { margin-bottom:16px; }
.section-desc { font-size:var(--text-lg); color:var(--color-text-light); max-width:640px; line-height:1.7; margin-left:auto; margin-right:auto; }
.section-cta { text-align:center; margin-top:48px; }

/* Section variants */
.section-why { background:var(--color-surface); }
.section-services { background:var(--color-bg); }
.section-about { background:var(--color-surface); }
.section-faq { background:var(--color-bg); }
.section-contact { background:var(--color-surface); }

/* ─── 10. TRUST BAR ─── */
.trust-section { padding:40px 0; background:var(--color-surface); border-bottom:1px solid var(--color-border); }
.trust-bar { display:flex; justify-content:center; align-items:center; gap:clamp(24px,5vw,60px); flex-wrap:wrap; }
.trust-item { display:flex; align-items:center; gap:12px; font-size:var(--text-sm); font-weight:600; color:var(--color-text-light); }
.trust-icon { display:flex; align-items:center; justify-content:center; width:48px; height:48px; background:var(--color-primary-light); border-radius:var(--radius-sm); color:var(--color-primary); transition:all .3s; }
.trust-item:hover .trust-icon { background:var(--color-primary); color:var(--color-white); }

/* ─── 11. FEATURE / WHY CARDS ─── */
.features-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(320px,1fr)); gap:24px; }
.feature-card {
  background:var(--color-surface); border-radius:var(--radius); padding:36px 28px;
  box-shadow:var(--shadow-card); border:1px solid var(--color-border);
  transition:all var(--transition); position:relative; overflow:hidden;
}
.feature-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg,var(--color-primary),var(--color-primary-dark));
  transform:scaleX(0); transform-origin:left; transition:transform var(--transition);
}
.feature-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); border-color:transparent; }
.feature-card:hover::before { transform:scaleX(1); }
.feature-icon {
  display:inline-flex; align-items:center; justify-content:center; width:56px; height:56px;
  background:var(--color-primary-light); color:var(--color-primary); border-radius:var(--radius-sm);
  margin-bottom:20px; transition:all .3s;
}
.feature-card:hover .feature-icon { background:var(--color-primary); color:var(--color-white); transform:scale(1.05); }
.feature-card h3 { font-size:var(--text-xl); margin-bottom:12px; }
.feature-card p { font-size:var(--text-base); color:var(--color-text-light); }

/* ─── 12. SERVICE CARDS ─── */
.services-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(340px,1fr)); gap:28px; }
.service-card {
  background:var(--color-surface); border-radius:var(--radius-lg); padding:40px 32px;
  border:1px solid var(--color-border); position:relative; overflow:hidden;
  transition:all var(--transition);
}
.service-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:4px;
  background:linear-gradient(90deg,var(--color-primary),#6ee7b7);
  transform:scaleX(0); transform-origin:left; transition:transform var(--transition);
}
.service-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-hover); }
.service-card:hover::before { transform:scaleX(1); }
.service-card.featured { background:var(--color-secondary); border-color:transparent; }
.service-card.featured h3,.service-card.featured .service-card-number { color:var(--color-white); }
.service-card.featured p { color:rgba(255,255,255,0.65); }
.service-card.featured .service-card-icon { background:rgba(16,185,129,0.15); }
.service-card.featured .service-link { color:var(--color-primary); }
.service-card-icon {
  display:inline-flex; align-items:center; justify-content:center; width:64px; height:64px;
  background:var(--color-primary-light); color:var(--color-primary); border-radius:var(--radius);
  margin-bottom:24px; transition:all .3s;
}
.service-card:hover .service-card-icon { background:var(--color-primary); color:var(--color-white); }
.service-card-number { font-size:var(--text-xs); font-weight:700; color:var(--color-muted); letter-spacing:0.1em; margin-bottom:12px; display:block; }
.service-card h3 { font-size:var(--text-xl); margin-bottom:16px; }
.service-link { display:inline-flex; align-items:center; gap:6px; margin-top:20px; font-size:var(--text-sm); font-weight:600; color:var(--color-primary); transition:gap .2s; }
.service-link:hover { gap:12px; }

/* ─── 13. ABOUT SECTION ─── */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:clamp(40px,6vw,80px); align-items:center; }
.about-content .section-tag { text-align:left; }
.about-content .section-title { text-align:left; }
.about-content p { text-align:left; }
.about-highlights { display:flex; flex-direction:column; gap:16px; margin:32px 0; }
.about-highlight { display:flex; align-items:center; gap:12px; font-weight:500; color:var(--color-text); }
.about-highlight svg { color:var(--color-primary); flex-shrink:0; }
.about-image-wrapper { position:relative; border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-medium); }
.about-image-wrapper img { width:100%; height:auto; display:block; object-fit:cover; }
.about-image-badge {
  position:absolute; bottom:24px; left:24px; background:var(--color-primary); color:var(--color-white);
  padding:16px 20px; border-radius:var(--radius); text-align:center;
}
.badge-number { font-size:var(--text-2xl); font-weight:800; display:block; line-height:1; }
.badge-text { font-size:var(--text-xs); font-weight:500; display:block; margin-top:4px; }

/* ─── 14. CTA BANNER ─── */
.cta-banner {
  padding:var(--space-section) 0; position:relative; overflow:hidden;
  background:linear-gradient(135deg,var(--color-secondary) 0%,#064e3b 100%);
}
.cta-banner::before {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:60px 60px;
}
.cta-content { position:relative; z-index:2; text-align:center; max-width:700px; margin:0 auto; }
.cta-content h2 { color:var(--color-white)!important; margin-bottom:20px; }
.cta-content p { color:rgba(255,255,255,0.7)!important; font-size:var(--text-lg); margin-bottom:32px; }
.cta-actions { display:flex; justify-content:center; gap:16px; flex-wrap:wrap; }

/* ─── 15. FAQ ACCORDION ─── */
.faq-list { max-width:800px; margin:0 auto; display:flex; flex-direction:column; gap:12px; }
.faq-item { background:var(--color-surface); border-radius:var(--radius); border:1px solid var(--color-border); overflow:hidden; transition:all .3s; }
.faq-item:hover { border-color:var(--color-primary-light); }
.faq-item.active { border-color:var(--color-primary); box-shadow:var(--shadow-soft); }
.faq-question {
  display:flex; justify-content:space-between; align-items:center; width:100%; padding:20px 24px;
  font-size:var(--text-base); font-weight:600; color:var(--color-text); text-align:left; cursor:pointer;
  transition:color .2s; background:none; border:none;
}
.faq-question:hover { color:var(--color-primary); }
.faq-icon { font-size:1.4em; font-weight:300; color:var(--color-primary); transition:transform .3s; display:flex; align-items:center; }
.faq-item.active .faq-icon { transform:rotate(45deg); }
.faq-answer { max-height:0; overflow:hidden; transition:max-height .4s var(--ease); }
.faq-answer p { padding:0 24px 20px; color:var(--color-text-light); line-height:1.7; }
.faq-item.active .faq-answer { max-height:500px; }

/* ─── 16. CONTACT SECTION ─── */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:clamp(40px,6vw,80px); align-items:start; }
.contact-info .section-tag { text-align:left; }
.contact-info .section-title { text-align:left; }
.contact-info p { text-align:left; }
.contact-details { margin-top:32px; display:flex; flex-direction:column; gap:24px; }
.contact-detail { display:flex; gap:16px; align-items:flex-start; }
.contact-detail-icon {
  display:flex; align-items:center; justify-content:center; width:48px; height:48px; flex-shrink:0;
  background:var(--color-primary-light); color:var(--color-primary); border-radius:var(--radius-sm);
}
.contact-detail strong { display:block; font-weight:600; color:var(--color-text); margin-bottom:4px; }
.contact-detail p { margin:0; color:var(--color-text-light); }
.contact-detail a { color:var(--color-primary); }
.contact-detail a:hover { text-decoration:underline; }

/* ─── 17. CONTACT FORM ─── */
.contact-form-wrapper { background:var(--color-surface); border-radius:var(--radius-lg); padding:40px; border:1px solid var(--color-border); box-shadow:var(--shadow-soft); }
.contact-form h3 { margin-bottom:28px; font-size:var(--text-2xl); }
.form-group { margin-bottom:20px; }
.form-group label { display:block; font-size:var(--text-sm); font-weight:600; color:var(--color-text); margin-bottom:8px; }
.form-group input,.form-group textarea,.form-group select {
  width:100%; padding:14px 18px; background:var(--color-bg); border:2px solid var(--color-border);
  border-radius:var(--radius-sm); font-size:var(--text-base); color:var(--color-text);
  transition:all .2s;
}
.form-group input:focus,.form-group textarea:focus {
  border-color:var(--color-primary); background:var(--color-white);
  box-shadow:0 0 0 4px var(--color-primary-glow);
}
.form-group input::placeholder,.form-group textarea::placeholder { color:var(--color-muted); }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-error { display:block; font-size:var(--text-xs); color:#ef4444; margin-top:6px; min-height:18px; }
.form-checkbox { display:flex; align-items:flex-start; gap:12px; }
.form-checkbox input[type="checkbox"] { width:20px; height:20px; accent-color:var(--color-primary); flex-shrink:0; margin-top:2px; }
.form-checkbox label { font-size:var(--text-sm); font-weight:400; color:var(--color-text-light); cursor:pointer; }
.form-checkbox label a { color:var(--color-primary); text-decoration:underline; }
.form-group.form-checkbox { flex-direction:row; }
.form-success { text-align:center; padding:40px 20px; }
.form-success .success-icon { color:var(--color-primary); margin-bottom:16px; }
.form-success .success-icon svg { margin:0 auto; }
.form-success h3 { color:var(--color-primary); margin-bottom:12px; }
.form-success p { color:var(--color-text-light); }

/* Error state */
.form-group.error input,.form-group.error textarea { border-color:#ef4444; }
.form-group.error .form-error { color:#ef4444; }

/* ─── 18. FOOTER ─── */
.footer { background:var(--color-secondary); color:rgba(255,255,255,0.7); padding:80px 0 0; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; padding-bottom:60px; }
.footer-brand p { margin-top:16px; font-size:var(--text-sm); line-height:1.7; color:rgba(255,255,255,0.5); }
.footer-nav h4,.footer-contact h4 { color:var(--color-white); font-size:var(--text-base); font-weight:700; margin-bottom:20px; }
.footer-nav ul { display:flex; flex-direction:column; gap:10px; }
.footer-nav a { font-size:var(--text-sm); color:rgba(255,255,255,0.5); transition:color .2s; }
.footer-nav a:hover { color:var(--color-primary); }
.footer-contact p { font-size:var(--text-sm); color:rgba(255,255,255,0.5); margin-bottom:8px; }
.footer-contact a { color:rgba(255,255,255,0.5); transition:color .2s; }
.footer-contact a:hover { color:var(--color-primary); }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); padding:24px 0; display:flex; justify-content:space-between; align-items:center; }
.footer-bottom p { font-size:var(--text-xs); color:rgba(255,255,255,0.4); margin:0; }
.footer-legal { display:flex; gap:24px; }
.footer-legal a { font-size:var(--text-xs); color:rgba(255,255,255,0.4); transition:color .2s; }
.footer-legal a:hover { color:var(--color-primary); }

/* ─── 19. BACK TO TOP ─── */
.back-to-top {
  position:fixed; bottom:30px; right:30px; width:48px; height:48px; border-radius:50%;
  background:var(--color-primary); color:var(--color-white); display:flex; align-items:center; justify-content:center;
  box-shadow:0 4px 16px rgba(16,185,129,0.3); z-index:900;
  opacity:0; visibility:hidden; transform:translateY(10px); transition:all .3s;
}
.back-to-top.visible { opacity:1; visibility:visible; transform:translateY(0); }
.back-to-top:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(16,185,129,0.4); }

/* ─── 20. SCROLL REVEAL ─── */
.reveal { opacity:0; transform:translateY(30px); transition:opacity .8s var(--ease),transform .8s var(--ease); }
.reveal-left { opacity:0; transform:translateX(-40px); transition:opacity .8s var(--ease),transform .8s var(--ease); }
.reveal-right { opacity:0; transform:translateX(40px); transition:opacity .8s var(--ease),transform .8s var(--ease); }
.reveal.revealed,.reveal-left.revealed,.reveal-right.revealed { opacity:1; transform:translate(0); }

/* ─── 21. LEGAL PAGES ─── */
.section-legal { padding:60px 0 var(--space-section); }
.legal-content { max-width:800px; margin:0 auto; }
.legal-content h2 { font-size:var(--text-2xl); margin-top:40px; margin-bottom:16px; }
.legal-content h2:first-child { margin-top:0; }
.legal-content p { color:var(--color-text-light); }
.legal-content a { color:var(--color-primary); text-decoration:underline; }

/* ─── 22. GALLERY GRID ─── */
.gallery-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:20px; }
.gallery-item { position:relative; border-radius:var(--radius); overflow:hidden; cursor:pointer; }
.gallery-item img { width:100%; height:250px; object-fit:cover; transition:transform .5s var(--ease); }
.gallery-item:hover img { transform:scale(1.08); }
.gallery-overlay {
  position:absolute; inset:0; background:linear-gradient(to top,rgba(0,0,0,0.7),transparent 60%);
  display:flex; flex-direction:column; justify-content:flex-end; padding:20px;
  opacity:0; transition:opacity .3s;
}
.gallery-item:hover .gallery-overlay { opacity:1; }
.gallery-overlay h4 { color:var(--color-white); font-size:var(--text-base); }
.gallery-overlay p { color:rgba(255,255,255,0.7); font-size:var(--text-sm); margin:0; }

/* ─── 23. FILTER BUTTONS ─── */
.filter-buttons { display:flex; justify-content:center; gap:8px; margin-bottom:40px; flex-wrap:wrap; }
.filter-btn {
  padding:10px 24px; border-radius:var(--radius-full); font-size:var(--text-sm); font-weight:500;
  background:var(--color-surface); border:1px solid var(--color-border); color:var(--color-text-light);
  cursor:pointer; transition:all .2s;
}
.filter-btn:hover,.filter-btn.active { background:var(--color-primary); color:var(--color-white); border-color:var(--color-primary); }

/* ─── 24. SERVICE DETAIL (Leistungen page) ─── */
.service-detail-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; margin-bottom:80px; }
.service-detail-reverse { direction:rtl; }
.service-detail-reverse > * { direction:ltr; }
.service-detail-content h2 { font-size:var(--text-3xl); margin-bottom:16px; }
.service-detail-content p { margin-bottom:20px; }
.service-features { display:flex; flex-direction:column; gap:16px; margin:24px 0; }
.service-feature { display:flex; align-items:flex-start; gap:12px; }
.service-feature-icon { display:flex; align-items:center; justify-content:center; width:32px; height:32px; background:var(--color-primary-light); border-radius:50%; color:var(--color-primary); flex-shrink:0; }
.service-feature span { font-weight:500; color:var(--color-text); }
.service-image-wrapper { position:relative; border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-medium); }
.service-image-wrapper img { width:100%; height:auto; display:block; }
.service-image-badge {
  position:absolute; top:20px; right:20px; background:var(--color-primary); color:var(--color-white);
  width:48px; height:48px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:var(--text-lg);
}
.section-alt { background:var(--color-surface); }

/* Hero subpage variant */
.hero-subpage { min-height:40vh; padding-top:120px; padding-bottom:40px; }
.hero-subpage .hero-title { font-size:var(--text-4xl); }

/* ─── 25. VALUES / PRICING CARDS ─── */
.values-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.value-card {
  background:var(--color-surface); border-radius:var(--radius); padding:32px 24px; text-align:center;
  border:1px solid var(--color-border); transition:all var(--transition);
}
.value-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); }

/* ─── 26. FAQ CATEGORIES ─── */
.faq-category { margin-bottom:48px; }
.faq-category h2 { font-size:var(--text-2xl); margin-bottom:20px; text-align:left; }

/* ─── RESPONSIVE ─── */
@media (max-width:1023px) {
  .nav-menu { display:none; position:fixed; inset:0; z-index:1005; background:rgba(255,255,255,0.97); backdrop-filter:blur(24px); flex-direction:column; align-items:center; justify-content:center; gap:8px; }
  .nav-menu.active { display:flex; }
  .nav-menu .nav-link { font-size:var(--text-xl); padding:12px 32px; font-weight:600; }
  .nav-toggle { display:flex; }
  .btn-nav { display:none; }
  .about-grid,.contact-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .hero-stats { gap:24px; }
  .service-detail-grid,.service-detail-reverse { grid-template-columns:1fr; direction:ltr; }
}

@media (max-width:767px) {
  .features-grid,.services-grid { grid-template-columns:1fr; }
  .hero-stats { flex-direction:column; gap:16px; }
  .form-row { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .footer-bottom { flex-direction:column; gap:12px; text-align:center; }
  .trust-bar { flex-direction:column; gap:16px; }
  .cta-actions { flex-direction:column; align-items:center; }
  .contact-form-wrapper { padding:24px; }
  .gallery-grid { grid-template-columns:1fr; }
  .filter-buttons { gap:4px; }
  .filter-btn { padding:8px 16px; font-size:var(--text-xs); }
}

/* ─── SUCCESS OVERLAY ─── */
.form-success-overlay {
  position:fixed; inset:0; z-index:1200;
  background:rgba(0,0,0,0.5); backdrop-filter:blur(8px);
  display:flex; align-items:center; justify-content:center;
  opacity:0; transition:opacity .3s;
}
.form-success-overlay.visible { opacity:1; }
.form-success-content {
  background:var(--color-white); border-radius:var(--radius-lg); padding:48px 40px;
  text-align:center; max-width:440px; width:90%;
  box-shadow:0 24px 64px rgba(0,0,0,0.2); transform:translateY(20px);
  transition:transform .3s var(--ease);
}
.form-success-overlay.visible .form-success-content { transform:translateY(0); }
.form-success-icon { color:var(--color-primary); margin-bottom:20px; }
.form-success-content h3 { font-size:var(--text-2xl); color:var(--color-primary); margin-bottom:12px; }
.form-success-content p { color:var(--color-text-light); margin-bottom:24px; }
.success-close-btn {
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 32px; background:var(--color-primary); color:var(--color-white);
  border:none; border-radius:var(--radius-sm); font-weight:600; font-size:var(--text-sm);
  cursor:pointer; transition:all .2s;
}
.success-close-btn:hover { background:var(--color-primary-dark); transform:translateY(-2px); }

/* ─── FIELD ERRORS ─── */
.field-error { display:block; font-size:var(--text-xs); color:#ef4444; margin-top:6px; }
input.error,textarea.error { border-color:#ef4444!important; }
input.valid,textarea.valid { border-color:var(--color-primary)!important; }

/* ─── NO SCROLL (mobile menu) ─── */
body.no-scroll { overflow:hidden; }