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

:root {
  --primary-color: #1a1a1a;
  --text-dark: #1a1a1a;
  --text-light: #ffffff;
  --overlay-white: rgba(255, 255, 255, 0.92);
  --overlay-dark: rgba(0, 0, 0, 0.4);
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  color: var(--text-dark);
  line-height: 1.6;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
  padding: 1.5rem 0;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-light);
}

.navbar.scrolled .nav-brand {
  color: var(--text-dark);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.navbar.scrolled .nav-link {
  color: var(--text-dark);
}

.nav-link:hover {
  opacity: 0.7;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-light);
  transition: var(--transition);
}

.navbar.scrolled .nav-toggle span {
  background: var(--text-dark);
}

section {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem;
}

.section-background,
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-background {
  opacity: 90%;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(20px);
}

.section-background img,
.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.overlay {
  opacity: 90%;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-white);
}

.hero-section {
  text-align: center;
}

.hero-section .overlay {
  background: var(--overlay-dark);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--text-light);
  margin-bottom: 0.5rem;
  opacity: 0.95;
}

.hero-positioning {
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  font-weight: 300;
  color: var(--text-light);
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.cta-button {
  background: var(--text-light);
  color: var(--text-dark);
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  font-family: 'Inter', sans-serif;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

.section-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 3rem;
  text-align: center;
}

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

.about-text p {
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  padding: 2.5rem;
  border-radius: 20px;
  transition: var(--transition);
  text-align: center;
}

.glass {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dark);
}

.service-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.service-description {
  font-size: 1rem;
  color: var(--text-dark);
  opacity: 0.85;
  line-height: 1.7;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.method-step {
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  transition: var(--transition);
}

.method-step:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
  opacity: 0.3;
}

.step-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.step-description {
  font-size: 1rem;
  color: var(--text-dark);
  opacity: 0.85;
  line-height: 1.7;
}

.cta-section {
  text-align: center;
}

.cta-section .overlay {
  background: var(--overlay-dark);
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.3;
}

.footer {
  background: var(--text-dark);
  color: var(--text-light);
  padding: 3rem 2rem 2rem;
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  text-align: left;
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-contact p {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.footer-contact a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}

.footer-contact a:hover {
  opacity: 0.7;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  opacity: 0.7;
}

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-content {
  background: white;
  padding: 3rem;
  border-radius: 20px;
  max-width: 500px;
  width: 90%;
  position: relative;
  animation: slideUp 0.3s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

@keyframes slideUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--text-dark);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border-radius: 50%;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.05);
}

.modal-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-dark);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  padding: 0.875rem;
  border: 2px solid #e5e5e5;
  border-radius: 10px;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--text-dark);
}

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

.submit-button {
  background: var(--text-dark);
  color: var(--text-light);
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

.submit-button:hover {
  background: #333;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.submit-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  padding: 1rem;
  border-radius: 10px;
  text-align: center;
  font-weight: 500;
  margin-top: 1rem;
  display: none;
}

.form-message.success {
  background: #d4edda;
  color: #155724;
  display: block;
}

.form-message.error {
  background: #f8d7da;
  color: #721c24;
  display: block;
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu .nav-link {
    color: var(--text-dark);
  }

  .nav-toggle {
    display: flex;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .modal-content {
    padding: 2rem 1.5rem;
  }

  section {
    padding: 5rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .modal-content {
    width: 95%;
  }
}