:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --accent-soft: #e0f2fe;
  --text: #334155;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e2e8f0;
  --success: #10b981;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.05);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--primary);
  line-height: 1.25;
}

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

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--primary);
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.95rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: white !important;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 0.9rem 1.8rem;
  font-size: 1.05rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  margin: 5px 0;
  transition: 0.3s;
  border-radius: 2px;
}

/* ========== HERO ========== */
.hero {
  padding: 140px 0 100px;
  background: linear-gradient(160deg, #f0f9ff 0%, #ffffff 45%, #f8fafc 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent), #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 520px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
}

.stat-item strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-item span {
  font-size: 0.9rem;
  color: var(--text-light);
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: white;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  padding: 1.75rem;
  position: relative;
  z-index: 2;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.hero-card-header .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-block {
  background: var(--primary);
  color: #e2e8f0;
  border-radius: 10px;
  padding: 1.25rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  overflow-x: auto;
}

.code-block .comment { color: #64748b; }
.code-block .keyword { color: #38bdf8; }
.code-block .string { color: #a5f3fc; }
.code-block .func { color: #c4b5fd; }

.floating-badge {
  position: absolute;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  padding: 0.9rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 3;
}

.floating-badge.top {
  top: -20px;
  right: -10px;
}

.floating-badge.bottom {
  bottom: -15px;
  left: -20px;
}

.badge-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* ========== SECTIONS ========== */
section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.1rem;
}

/* ========== ABOUT ========== */
.about {
  background: var(--bg-alt);
}

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

.about-content h2 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

.about-content p {
  color: var(--text-light);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about-points {
  list-style: none;
  margin-top: 1.5rem;
  padding: 0;
}

.about-points li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
  font-weight: 500;
}

.about-points li::before {
  content: '✓';
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.about-cards {
  display: grid;
  gap: 1.25rem;
}

.about-card {
  background: white;
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.about-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.about-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.about-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.about-card p {
  font-size: 0.95rem;
  color: var(--text-light);
}

/* ========== SERVICES ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #6366f1);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.service-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card:hover::after {
  transform: scaleX(1);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-light);
}

/* ========== TECH ========== */
.tech {
  background: var(--primary);
  color: white;
}

.tech .section-label {
  color: #38bdf8;
}

.tech h2 {
  color: white;
}

.tech .section-header p {
  color: #94a3b8;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.tech-category {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.tech-category h4 {
  color: #38bdf8;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  font-size: 0.82rem;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-weight: 500;
}

/* ========== PROCESS ========== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  border-radius: 50%;
  margin: 0 auto 1.25rem;
}

.process-step h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 0.95rem;
  color: var(--text-light);
}

/* ========== CTA ========== */
.cta {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: white;
  text-align: center;
  padding: 80px 0;
}

.cta h2 {
  color: white;
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 1rem;
}

.cta p {
  color: #94a3b8;
  font-size: 1.15rem;
  max-width: 520px;
  margin: 0 auto 2rem;
}

/* ========== CONTACT ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3.5rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-info > p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.contact-item strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.contact-item span,
.contact-item a {
  font-size: 0.95rem;
  color: var(--text-light);
}

.contact-item a:hover {
  color: var(--accent);
}

.contact-form {
  background: var(--bg-alt);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  background: white;
  transition: border-color 0.2s;
  color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

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

.field-validation-error,
.text-danger {
  color: #ef4444;
  font-size: 0.85rem;
  margin-top: 0.3rem;
  display: block;
}

.alert-success {
  background: #dcfce7;
  color: #166534;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.25rem;
  font-weight: 500;
}

/* ========== FOOTER ========== */
footer {
  background: var(--primary);
  color: #94a3b8;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h5 {
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  font-family: 'Space Grotesk', sans-serif;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #38bdf8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    max-width: 480px;
    margin: 0 auto;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero {
    padding: 120px 0 70px;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .services-grid,
  .tech-grid,
  .process-steps {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .floating-badge.top,
  .floating-badge.bottom {
    display: none;
  }
}

/* ========== LEGAL PAGES (Impressum, Datenschutz etc.) ========== */
.legal-page {
  padding: 8rem 0 5rem;
  max-width: 900px;
}

.legal-page .section-label {
  display: inline-block;
  margin-bottom: 0.75rem;
}

.legal-page h1 {
  font-size: 2.5rem;
  margin-bottom: 2.5rem;
}

.legal-block {
  margin-bottom: 2rem;
}

.legal-block h2 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.legal-block p {
  color: var(--text-light);
  margin-bottom: 0.75rem;
}

.legal-block p:last-child {
  margin-bottom: 0;
}