/* ============================================
   RESET & BASE
   ============================================ */

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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --dark: #0a0a0a;
  --text: #1a1a2e;
  --text-light: #555;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.10);
  --radius: 12px;
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  padding-top: 70px;
}

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

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 80px 0;
}

/* ============================================
   HEADER
   ============================================ */

#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
  padding: 12px 0;
  transition: var(--transition);
}

#header .container {
  padding: 0 24px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#header .logo {
  flex-shrink: 0;
}

#header .logo img {
  height: 45px;
  width: auto;
  display: block;
}

#header .navbar {
  display: flex;
  align-items: center;
}

#header .navbar ul {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
}

#header .navbar ul li {
  display: inline-block;
}

#header .navbar ul li a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 8px;
  transition: var(--transition);
}

#header .navbar ul li a:hover {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.06);
}

#header .navbar ul li a.active {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
}

#header .navbar ul li a.btn-nav-cta {
  background: var(--primary);
  color: white;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 600;
}

#header .navbar ul li a.btn-nav-cta:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

#header .navbar ul li a.support-btn {
  background: var(--dark);
  color: white;
}

#header .navbar ul li a.support-btn:hover {
  background: #1a1a2e;
  color: white;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--dark);
  cursor: pointer;
  padding: 4px 8px;
}

/* ============================================
   HERO
   ============================================ */

#hero {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  padding: 40px 0 60px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
  position: relative;
  overflow: hidden;
}

#hero .hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

#hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

#hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 650px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-buttons .btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--primary);
  color: white;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}

.hero-buttons .btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.35);
}

.hero-buttons .btn-outline {
  display: inline-block;
  padding: 14px 32px;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}

.hero-buttons .btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.hero-stats .stat {
  text-align: center;
}

.hero-stats .stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
}

.hero-stats .stat-number span {
  color: var(--primary);
}

.hero-stats .stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 4px;
}

/* ============================================
   ABOUT
   ============================================ */

#about {
  background: var(--white);
}

#about .about-content {
  max-width: 900px;
  margin: 0 auto;
}

#about .about-content .label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

#about .about-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

#about .about-content h2 span {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#about .about-content .divider {
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #60a5fa);
  border-radius: 4px;
  margin: 1.5rem 0 2rem 0;
}

#about .about-content p {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 1.2rem;
  line-height: 1.8;
}

#about .about-content p strong {
  color: var(--dark);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.about-grid .item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  color: var(--dark);
}

.about-grid .item i {
  color: var(--primary);
  font-size: 1.2rem;
}

/* ============================================
   SERVICES
   ============================================ */

#services {
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-title .label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.section-title h2 span {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title .subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.section-title .divider {
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #60a5fa);
  border-radius: 4px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--white);
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.service-card .icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.service-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.service-card .badge {
  display: inline-block;
  background: var(--bg-light);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   WHY US
   ============================================ */

#why-us {
  background: var(--white);
}

#why-us .why-content {
  max-width: 900px;
  margin: 0 auto;
}

#why-us .why-content .label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

#why-us .why-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

#why-us .why-content h2 span {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#why-us .why-content > p {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.8;
  max-width: 700px;
}

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

.why-item {
  padding: 1.5rem;
  background: var(--bg-light);
  border-radius: var(--radius);
  transition: var(--transition);
  border: 1px solid transparent;
}

.why-item:hover {
  background: var(--white);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.why-item .icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.why-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.3rem;
}

.why-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ============================================
   CTA
   ============================================ */

#cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
}

#cta .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

#cta h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

#cta p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 600px;
  line-height: 1.7;
}

#cta .cta-btn {
  display: inline-block;
  padding: 14px 36px;
  background: white;
  color: var(--primary);
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  white-space: nowrap;
}

#cta .cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ============================================
   CONTACT
   ============================================ */

#contact {
  background: var(--bg-light);
}

#contact .row {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

.contact-info .label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.contact-info > p {
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

.contact-info .item i {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info .item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 2px;
}

.contact-info .item p {
  color: var(--text-light);
  font-size: 0.95rem;
}

.contact-info .item a {
  color: var(--primary);
  transition: var(--transition);
}

.contact-info .item a:hover {
  color: var(--primary-dark);
}

.contact-form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.contact-form .form-group {
  margin-bottom: 1.2rem;
}

.contact-form .form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.contact-form .form-group input,
.contact-form .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-light);
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.contact-form .form-group textarea {
  resize: vertical;
}

.contact-form button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.contact-form button[type="submit"]:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.35);
}

/* ============================================
   FOOTER
   ============================================ */

#footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 30px 0;
}

#footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

#footer .copyright {
  font-size: 0.9rem;
}

#footer .copyright strong {
  color: white;
}

#footer .footer-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  flex-wrap: wrap;
}

#footer .footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

#footer .footer-links a:hover {
  color: white;
}

/* ============================================
   BACK TO TOP
   ============================================ */

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ============================================
   IMPRESSUM
   ============================================ */

#impressum {
  background: var(--bg-light);
  padding: 100px 0 80px 0;
  min-height: 70vh;
}

#impressum .impressum-content {
  max-width: 900px;
  margin: 0 auto;
}

#impressum .impressum-content .label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

#impressum .impressum-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

#impressum .impressum-content h2 span {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#impressum .impressum-content .divider {
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #60a5fa);
  border-radius: 4px;
  margin: 1.5rem 0 2.5rem 0;
}

.impressum-section {
  background: var(--white);
  padding: 1.8rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}

.impressum-section:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.impressum-section h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.8rem;
}

.impressum-section p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-light);
  margin-bottom: 0;
}

.impressum-section a {
  color: var(--primary);
  text-decoration: none;
}

.impressum-section a:hover {
  text-decoration: underline;
}

.impressum-section strong {
  color: var(--dark);
}

.impressum-back {
  margin-top: 2.5rem;
  text-align: center;
}

.impressum-back .btn-outline {
  display: inline-block;
  padding: 0.8rem 2rem;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.impressum-back .btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 992px) {
  .mobile-nav-toggle {
    display: block;
  }

  #header .navbar {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-top: 1px solid #eee;
  }

  #header .navbar.open {
    display: block;
  }

  #header .navbar ul {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  #header .navbar ul li a {
    display: block;
    padding: 12px 16px;
    width: 100%;
    text-align: center;
  }

  #header .navbar ul li a.btn-nav-cta {
    text-align: center;
  }

  #hero h1 {
    font-size: 2.5rem;
  }

  .hero-stats {
    gap: 2rem;
    flex-wrap: wrap;
  }

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

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

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

  #cta .row {
    flex-direction: column;
    text-align: center;
  }

  #cta p {
    max-width: 100%;
  }

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

  #footer .footer-links {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 60px;
  }

  #header .logo img {
    height: 35px;
  }

  .section-padding {
    padding: 60px 0;
  }

  #hero {
    min-height: auto;
    padding: 40px 0;
  }

  #hero h1 {
    font-size: 2rem;
  }

  #hero .subtitle {
    font-size: 1rem;
  }

  .hero-stats .stat-number {
    font-size: 2rem;
  }

  #about .about-content h2,
  .section-title h2,
  #why-us .why-content h2 {
    font-size: 1.8rem;
  }

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

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

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

  .contact-form {
    padding: 1.5rem;
  }

  #impressum {
    padding: 80px 0 60px 0;
  }

  #impressum .impressum-content h2 {
    font-size: 1.8rem;
  }

  .impressum-section {
    padding: 1.2rem 1.2rem;
  }

  .impressum-section h3 {
    font-size: 1rem;
  }

  .impressum-section p {
    font-size: 0.9rem;
  }

  #cta h2 {
    font-size: 1.5rem;
  }

  #cta {
    padding: 60px 0;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
  }
}

@media (max-width: 576px) {
  #hero h1 {
    font-size: 1.6rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn-primary,
  .hero-buttons .btn-outline {
    width: 100%;
    text-align: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  #footer .footer-links {
    gap: 0.75rem;
  }

  #footer .footer-links a {
    font-size: 0.8rem;
  }
}