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

    html, body {
      height: 100%;
      width: 100%;
    }

    body {
      font-family: 'Inter', sans-serif;
      color: #333;
      line-height: 1.6;
      overflow-x: hidden;
    }

    .app-wrapper {
      width: 100%;
      min-height: 100%;
    }

    h1, h2, h3, h4 {
      font-family: 'Poppins', sans-serif;
      font-weight: 600;
    }

    .nav-header {
      width: 100%;
      padding: 20px 5%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      position: fixed;
      top: 0;
      z-index: 1000;
      backdrop-filter: blur(10px);
      transition: all 0.3s ease;
    }

    .nav-header.scrolled {
      box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    }

    .logo {
      font-size: 24px;
      font-weight: 600;
      font-family: 'Poppins', sans-serif;
    }

    .nav-links {
      display: flex;
      gap: 30px;
      align-items: center;
    }

    .nav-links a {
      text-decoration: none;
      font-weight: 500;
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .auth-btn {
      padding: 10px 24px;
      border-radius: 25px;
      border: none;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.3s ease;
      font-family: 'Inter', sans-serif;
    }

    .hero-section {
      width: 100%;
      min-height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 5% 80px;
      position: relative;
      overflow: hidden;
    }

    .hero-content {
      max-width: 800px;
      z-index: 2;
      animation: fadeInUp 1s ease;
    }

    .hero-content h1 {
      font-size: 56px;
      margin-bottom: 20px;
      line-height: 1.2;
    }

    .hero-content p {
      font-size: 20px;
      margin-bottom: 40px;
      opacity: 0.9;
    }

    .cta-btn {
      padding: 16px 40px;
      font-size: 16px;
      border-radius: 30px;
      border: none;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      font-family: 'Poppins', sans-serif;
    }

    .cta-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    }

    .section {
      width: 100%;
      padding: 80px 5%;
    }

    .section-title {
      text-align: center;
      font-size: 42px;
      margin-bottom: 60px;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 40px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .feature-card {
      padding: 40px 30px;
      border-radius: 20px;
      text-align: center;
      transition: all 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-10px);
    }

    .feature-icon {
      font-size: 48px;
      margin-bottom: 20px;
      transition: transform 0.3s ease;
    }

    .feature-card:hover .feature-icon {
      transform: scale(1.1);
    }

    .feature-card h3 {
      font-size: 24px;
      margin-bottom: 15px;
    }

    .feature-card p {
      font-size: 16px;
      opacity: 0.8;
    }

    .about-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      max-width: 1200px;
      margin: 0 auto;
    }

    .about-image {
      width: 100%;
      height: 400px;
      border-radius: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 80px;
    }

    .about-content h2 {
      font-size: 38px;
      margin-bottom: 20px;
    }

    .about-content p {
      font-size: 17px;
      margin-bottom: 15px;
      opacity: 0.85;
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .gallery-item {
      height: 300px;
      border-radius: 20px;
      overflow: hidden;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 60px;
      transition: transform 0.3s ease;
      cursor: pointer;
    }

    .gallery-item:hover {
      transform: scale(1.05);
    }

    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 40px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .testimonial-card {
      padding: 35px;
      border-radius: 20px;
      transition: all 0.3s ease;
    }

    .testimonial-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    }

    .testimonial-header {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }

    .testimonial-avatar {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
    }

    .testimonial-info h4 {
      font-size: 18px;
      margin-bottom: 5px;
    }

    .testimonial-info p {
      font-size: 14px;
      opacity: 0.7;
    }

    .testimonial-text {
      font-size: 16px;
      line-height: 1.7;
      opacity: 0.85;
    }

    .contact-section {
      max-width: 600px;
      margin: 0 auto;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

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

    .form-group label {
      margin-bottom: 8px;
      font-weight: 500;
      font-size: 15px;
    }

    .form-group input,
    .form-group textarea {
      padding: 14px 18px;
      border-radius: 12px;
      border: 2px solid;
      font-size: 15px;
      font-family: 'Inter', sans-serif;
      transition: all 0.3s ease;
    }

    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      transform: translateY(-2px);
    }

    .form-group textarea {
      resize: vertical;
      min-height: 150px;
    }

    .submit-btn {
      padding: 16px;
      border-radius: 12px;
      border: none;
      font-weight: 600;
      font-size: 16px;
      cursor: pointer;
      transition: all 0.3s ease;
      font-family: 'Poppins', sans-serif;
    }

    .submit-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(0,0,0,0.12);
    }

    .submit-btn:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
    }

    .footer-main {
      width: 100%;
      padding: 60px 5% 30px;
      border-top: 1px solid;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 40px;
      max-width: 1200px;
      margin: 0 auto 40px;
    }

    .footer-column h3 {
      font-size: 20px;
      margin-bottom: 20px;
    }

    .footer-column p,
    .footer-column a {
      font-size: 15px;
      margin-bottom: 12px;
      opacity: 0.8;
      text-decoration: none;
      display: block;
      transition: opacity 0.3s ease;
    }

    .footer-column a:hover {
      opacity: 1;
    }

    .newsletter-form {
      display: flex;
      gap: 10px;
      margin-top: 15px;
    }

    .newsletter-form input {
      flex: 1;
      padding: 12px 16px;
      border-radius: 8px;
      border: 2px solid;
      font-size: 14px;
      font-family: 'Inter', sans-serif;
    }

    .newsletter-btn {
      padding: 12px 24px;
      border-radius: 8px;
      border: none;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      font-family: 'Inter', sans-serif;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 30px;
      border-top: 1px solid;
      opacity: 0.7;
      font-size: 14px;
    }

    .modal-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 2000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .modal-overlay.active {
      display: flex;
    }

    .modal-content {
      width: 100%;
      max-width: 450px;
      padding: 40px;
      border-radius: 24px;
      position: relative;
      box-shadow: 0 20px 60px rgba(0,0,0,0.15);
      animation: modalSlideIn 0.3s ease;
    }

    .close-modal {
      position: absolute;
      top: 20px;
      right: 20px;
      background: none;
      border: none;
      font-size: 28px;
      cursor: pointer;
      opacity: 0.6;
      transition: opacity 0.3s ease;
    }

    .close-modal:hover {
      opacity: 1;
    }

    .modal-content h2 {
      font-size: 32px;
      margin-bottom: 10px;
    }

    .modal-content .subtitle {
      font-size: 15px;
      opacity: 0.7;
      margin-bottom: 30px;
    }

    .auth-form {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .toggle-auth {
      text-align: center;
      margin-top: 20px;
      font-size: 14px;
    }

    .toggle-auth button {
      background: none;
      border: none;
      font-weight: 600;
      cursor: pointer;
      text-decoration: underline;
    }

    .success-message {
      padding: 15px;
      border-radius: 12px;
      margin-bottom: 20px;
      text-align: center;
      font-weight: 500;
    }

    .error-message {
      padding: 15px;
      border-radius: 12px;
      margin-bottom: 20px;
      text-align: center;
      font-weight: 500;
    }

    .page-content {
      padding: 120px 5% 80px;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-content h1 {
      font-size: 42px;
      margin-bottom: 30px;
    }

    .page-content h2 {
      font-size: 28px;
      margin-top: 40px;
      margin-bottom: 20px;
    }

    .page-content p {
      font-size: 17px;
      margin-bottom: 20px;
      line-height: 1.8;
      opacity: 0.85;
    }

    .page-content ul {
      margin-left: 30px;
      margin-bottom: 20px;
    }

    .page-content li {
      font-size: 17px;
      margin-bottom: 12px;
      line-height: 1.7;
      opacity: 0.85;
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @keyframes modalSlideIn {
      from {
        opacity: 0;
        transform: translateY(-30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (max-width: 768px) {
      .hero-content h1 {
        font-size: 36px;
      }

      .hero-content p {
        font-size: 18px;
      }

      .section-title {
        font-size: 32px;
      }

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

      .nav-links {
        gap: 15px;
      }

      .nav-links a {
        font-size: 14px;
      }

      .auth-btn {
        padding: 8px 16px;
        font-size: 14px;
      }
    }

    .hidden {
      display: none;
    }
  .hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  font-family: 'Arial', sans-serif;
  text-align: center;
  background: url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
  animation: heroZoom 20s infinite alternate;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  animation: fadeInUp 2s ease forwards;
}

#heroTitle {
  font-size: 4rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.typewriter {
  font-size: 1.5rem;
  color: #f0f0f0;
  border-right: 3px solid #ff1f3d;
  white-space: nowrap;
  overflow: hidden;
}

.marquee {
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
  box-sizing: border-box;
  margin: 2rem 0;
}

.marquee p {
  display: inline-block;
  padding-left: 100%;
  animation: marquee 15s linear infinite;
  font-size: 1.2rem;
  letter-spacing: 2px;
}

.cta-btn {
  padding: 1rem 2rem;
  font-size: 1rem;
  background: #ff1f3d;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: white;
  font-weight: bold;
}

.cta-btn:hover {
  background: #e6002c;
  transform: scale(1.05);
}

/* Animations */
@keyframes heroZoom {
  0% { transform: scale(1) translateY(0); }
  50% { transform: scale(1.05) translateY(-10px); }
  100% { transform: scale(1) translateY(0); }
}

@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(20px);}
  100% { opacity: 1; transform: translateY(0);}
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

/* Responsive */
@media (max-width: 768px) {
  #heroTitle {
    font-size: 2.5rem;
  }
  .typewriter {
    font-size: 1.2rem;
  }
  .marquee p {
    font-size: 1rem;
  }
}
.section {
  padding: 5rem 2rem;
  background: #f9f9f9;
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #333;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: #fff;
  padding: 2rem 1.5rem;
  border-radius: 15px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 25px rgba(0,0,0,0.15);
}

.feature-icon img {
  width: 60px;
  height: 60px;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #ff1f3d;
}

.feature-card p {
  font-size: 1rem;
  color: #555;
  line-height: 1.6;
}

.section {
  padding: 5rem 2rem;
  background: #fff;
}

.about-section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.about-image img {
  width: 100%;
  max-width: 500px;
  border-radius: 15px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.about-content {
  flex: 1;
  min-width: 300px;
}

#aboutTitle {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: #ff1f3d;
}

.about-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: #555;
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .about-section {
    flex-direction: column;
    text-align: center;
  }

  .about-image img {
    max-width: 100%;
  }
}
.section {
  padding: 5rem 2rem;
  background: #f9f9f9;
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #333;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  overflow: hidden;
  border-radius: 15px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.gallery-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 25px rgba(0,0,0,0.15);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Responsive */
@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}