/* ============================================
   AYS GmbH – Modern Redesign Stylesheet
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --clr-bg:        #f8fafc;
  --clr-surface:   #ffffff;
  --clr-dark:      #111111;
  --clr-dark2:     #1c1c1c;
  --clr-primary:   #1f2937;
  --clr-primary-h: #111827;
  --clr-accent:    #374151;
  --clr-text:      #1e293b;
  --clr-muted:     #64748b;
  --clr-border:    #e2e8f0;
  --clr-white:     #ffffff;

  --grad-hero:   linear-gradient(135deg, #0a0a0a 0%, #1f2937 60%, #374151 100%);
  --grad-accent: linear-gradient(90deg, #111827, #1a252f);
  --grad-cta:    linear-gradient(135deg, #0a0a0a, #1f2937);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg:  0 20px 60px rgba(0,0,0,.14);

  --nav-h: 70px;
  --transition: 0.3s ease;
}

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

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* ---------- Typography ---------- */
h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); font-weight: 600; }
p  { font-size: 1.0625rem; }

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: .75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  border-radius: 50px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: none;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--grad-accent);
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(0,0,0,.35);
}
.btn-primary:hover { box-shadow: 0 8px 30px rgba(0,0,0,.5); }

.btn-outline {
  background: transparent;
  color: var(--clr-white);
  border: 2px solid rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: #fff; }

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 10, .35);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.07);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.nav.scrolled {
  background: rgba(10, 10, 10, .75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 2px 24px rgba(0,0,0,.30);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--clr-white);
}
.nav-logo span { color: var(--clr-muted); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-links a {
  font-size: .925rem;
  font-weight: 500;
  color: rgba(255,255,255,.80);
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 0; height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  padding: .55rem 1.3rem;
  background: var(--grad-accent);
  color: var(--clr-white) !important;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: .875rem !important;
  transition: box-shadow var(--transition), transform var(--transition);
}
.nav-cta:hover { box-shadow: 0 4px 18px rgba(0,0,0,.45); transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background: none;
  border: none;
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle span {
  position: absolute;
  right: 4px;
  height: 2px;
  border-radius: 2px;
  background: rgba(255,255,255,.9);
  -webkit-transform-origin: center center;
          transform-origin: center center;
  -webkit-transition: top 0.3s cubic-bezier(.4,0,.2,1),
                      width 0.3s cubic-bezier(.4,0,.2,1),
                      -webkit-transform 0.35s cubic-bezier(.4,0,.2,1),
                      opacity 0.25s ease,
                      background 0.3s ease;
          transition: top 0.3s cubic-bezier(.4,0,.2,1),
                      width 0.3s cubic-bezier(.4,0,.2,1),
                      transform 0.35s cubic-bezier(.4,0,.2,1),
                      opacity 0.25s ease,
                      background 0.3s ease;
}
.nav-toggle span:nth-child(1) { width: 28px; top: 11px; }
.nav-toggle span:nth-child(2) { width: 20px; top: 19px; }
.nav-toggle span:nth-child(3) { width: 24px; top: 27px; }

.nav-toggle:hover span { background: #fff; }

.nav-toggle.open span:nth-child(1) {
  top: 19px;
  width: 26px;
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  -webkit-transform: scaleX(0);
          transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
  top: 19px;
  width: 26px;
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}

/* Mobile drawer */
.nav-mobile {
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  z-index: 999;
  background: rgba(10, 10, 10, .75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 8px 24px rgba(0,0,0,.30);
  padding: 1.5rem 1.5rem 2rem;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform var(--transition), opacity var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.nav-mobile.open {
  transform: translateY(0);
  opacity: 1;
}
.nav-mobile a {
  font-size: 1.1rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  padding: .5rem 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: color var(--transition);
}
.nav-mobile a:hover { color: var(--clr-accent); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--clr-white);
  overflow: hidden;
  background: var(--grad-hero);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  padding: 2rem 1.5rem;
}

.hero-badge {
  display: inline-block;
  padding: .4rem 1.1rem;
  background: rgba(55,65,81,.18);
  border: 1px solid rgba(55,65,81,.35);
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #67e8f9;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero-dot { 
  color: var(--clr-muted);
} 

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: rgba(255,255,255,.75);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: rgba(255,255,255,.4);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  animation: scrollBounce 2s infinite;
}
.hero-scroll svg { opacity: .5; }

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   INTRO / ABOUT
   ============================================ */
.intro {
  padding: 5rem 0;
  background: var(--clr-surface);
}

.intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.intro-text h2 { margin-bottom: 1rem; color: var(--clr-dark); }
.intro-text p { color: var(--clr-muted); line-height: 1.8; }

.intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.stat-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: .35rem;
}
.stat-label { font-size: .85rem; color: var(--clr-muted); font-weight: 500; }

/* ============================================
   SERVICES
   ============================================ */
.services {
  padding: 6rem 0;
  background: var(--clr-bg);
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-header h2 { color: var(--clr-dark); margin-bottom: .75rem; }
.section-header p { color: var(--clr-muted); max-width: 520px; margin-inline: auto; }

.services-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin-inline: auto;
}

/* Accordion cards */
.service-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-md); }
.service-card.active {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(0,0,0,.12), var(--shadow-md);
}

.service-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.4rem 1.6rem;
  cursor: pointer;
  user-select: none;
}

.service-num {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .05em;
  background: linear-gradient(135deg, var(--clr-dark), var(--clr-dark2));
  color: var(--clr-white);
}

.service-title {
  flex: 1;
  min-width: 0;
  word-break: break-word;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-dark);
}

.service-chevron {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
  color: var(--clr-muted);
}
.service-card.active .service-chevron {
  transform: rotate(180deg);
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #fff;
}

.service-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}
.service-card.active .service-body { max-height: 500px; }

.service-body-inner {
  padding: 0 1.6rem 1.6rem 4.75rem;
  color: var(--clr-muted);
  line-height: 1.8;
  font-size: 1rem;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  padding: 7rem 0;
  background: var(--grad-cta);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
}

.cta-section::after {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(55,65,81,.2), transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-inner { position: relative; z-index: 1; }

.cta-section h2 {
  color: var(--clr-white);
  margin-bottom: 1rem;
}
.cta-section p {
  color: rgba(255,255,255,.7);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  font-size: 1.1rem;
}
.cta-section .btn-primary { font-size: 1.05rem; padding: .95rem 2.2rem; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #0a0a0a;
  color: rgba(255,255,255,.65);
  padding: 3.5rem 0 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: .75rem;
}
.footer-brand h3 span { color: var(--clr-muted); }
.footer-brand p { font-size: .9rem; line-height: 1.75; max-width: 280px; }

.footer-col h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 1rem;
}
.footer-col ul li { margin-bottom: .6rem; }
.footer-col ul li a {
  font-size: .9rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--clr-accent); }

.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,.08);
  margin-bottom: 1.5rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  font-size: .83rem;
}
.footer-bottom a { color: rgba(255,255,255,.5); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--clr-accent); }

/* ============================================
   CONTACT PAGE
   ============================================ */
.page-hero {
  padding: calc(var(--nav-h) + 4rem) 0 4rem;
  background: var(--grad-hero);
  text-align: center;
  color: var(--clr-white);
}

.page-hero h1 { margin-bottom: .75rem; }
.page-hero p { color: rgba(255,255,255,.7); font-size: 1.1rem; }

.contact-section { padding: 5rem 0; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; color: var(--clr-dark); font-size: 1.6rem; }
.contact-info p { color: var(--clr-muted); margin-bottom: 2rem; line-height: 1.8; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  margin-bottom: 1.5rem;
}
.contact-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
}
.contact-detail-text strong { display: block; color: var(--clr-dark); font-size: .9rem; margin-bottom: .15rem; }
.contact-detail-text span, .contact-detail-text a {
  font-size: .9rem;
  color: var(--clr-muted);
}
.contact-detail-text a:hover { color: var(--clr-primary); }

/* Form */
.contact-form-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}
.contact-form-card h3 { font-size: 1.3rem; color: var(--clr-dark); margin-bottom: 1.75rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  margin-bottom: 1.2rem;
}
.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-dark2);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-family: inherit;
  color: var(--clr-text);
  background: var(--clr-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(0,0,0,.15);
}
.form-group textarea { resize: vertical; min-height: 130px; }

.form-submit {
  width: 100%;
  padding: .9rem;
  font-size: 1rem;
  border-radius: var(--radius-sm);
}

/* ============================================
   IMPRESSUM PAGE
   ============================================ */
.legal-section {
  padding: 5rem 0;
}
.legal-content {
  max-width: 780px;
}
.legal-content h2 { color: var(--clr-dark); margin-bottom: 1.5rem; }
.legal-content h3 { color: var(--clr-dark2); font-size: 1.1rem; margin: 2rem 0 .6rem; }
.legal-content p { color: var(--clr-muted); line-height: 1.85; margin-bottom: 1rem; }
.legal-content a { color: var(--clr-primary); text-decoration: underline; }

/* ============================================
   COOKIE BANNER
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  width: calc(100% - 3rem);
  max-width: 640px;
  background: var(--clr-dark);
  color: rgba(255,255,255,.85);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,.1);
  transition: opacity .4s ease, transform .4s ease;
}
.cookie-banner.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(20px);
}
.cookie-banner p { font-size: .88rem; line-height: 1.6; flex: 1; }
.cookie-banner a { color: var(--clr-accent); text-decoration: underline; }
.cookie-btn {
  flex-shrink: 0;
  padding: .55rem 1.3rem;
  background: var(--grad-accent);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: box-shadow var(--transition);
}
.cookie-btn:hover { box-shadow: 0 4px 14px rgba(0,0,0,.4); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 960px) {
  .intro-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .hero p { font-size: 1rem; }

  .intro-stats { grid-template-columns: 1fr 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { grid-column: auto; }

  .footer-bottom { flex-direction: column; text-align: center; }

  .cookie-banner { flex-direction: column; text-align: center; bottom: 1rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .intro-stats { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .contact-form-card { padding: 1.5rem; }
  .service-body-inner { padding-left: 1.6rem; }
  .service-header { gap: .75rem; padding: 1.1rem 1rem; }
  .service-num { width: 36px; height: 36px; }
  .service-title { font-size: .95rem; }
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.fade-up:nth-child(2) { transition-delay: .1s; }
.fade-up:nth-child(3) { transition-delay: .2s; }
.fade-up:nth-child(4) { transition-delay: .3s; }
.fade-up:nth-child(5) { transition-delay: .4s; }