:root {
  --primary-color: #1E7B85;
  --secondary-color: #4FB0AA;
  --accent-color: #00BF9A;
  --light-color: #F5F7FA;
  --dark-color: #333333;
  --white-color: #FFFFFF;
  --shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--white-color);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--primary-color);
}

h1 {
  font-size: 42px;
}

h2 {
  font-size: 32px;
}

h3 {
  font-size: 24px;
}

p {
  margin-bottom: 20px;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.col {
  padding: 0 15px;
  flex: 1;
}

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

.text-right {
  text-align: right;
}

.mb-1 {
  margin-bottom: 10px;
}

.mb-2 {
  margin-bottom: 20px;
}

.mb-3 {
  margin-bottom: 30px;
}

.mb-4 {
  margin-bottom: 40px;
}

.mb-5 {
  margin-bottom: 50px;
}

.mt-1 {
  margin-top: 10px;
}

.mt-2 {
  margin-top: 20px;
}

.mt-3 {
  margin-top: 30px;
}

.mt-4 {
  margin-top: 40px;
}

.mt-5 {
  margin-top: 50px;
}

.py-1 {
  padding-top: 10px;
  padding-bottom: 10px;
}

.py-2 {
  padding-top: 20px;
  padding-bottom: 20px;
}

.py-3 {
  padding-top: 30px;
  padding-bottom: 30px;
}

.py-4 {
  padding-top: 40px;
  padding-bottom: 40px;
}

.py-5 {
  padding-top: 50px;
  padding-bottom: 50px;
}

.py-6 {
  padding-top: 80px;
  padding-bottom: 80px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--white-color);
  box-shadow: var(--shadow);
  padding: 15px 0;
  transition: var(--transition);
}

.header.scrolled {
  padding: 10px 0;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
}

.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
}

.nav-item {
  margin: 0 15px;
}

.nav-link {
  font-weight: 600;
  padding: 5px 0;
  position: relative;
}

.nav-link:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: var(--transition);
}

.nav-link:hover:after,
.nav-link.active:after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 150px 0 100px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--white-color);
  position: relative;
  overflow: hidden;
}

.hero:before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
}

.hero:after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
}

.hero h1 {
  color: var(--white-color);
  margin-bottom: 30px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 40px;
  max-width: 600px;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-bg {
  background-color: var(--light-color);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  padding: 30px;
  text-align: center;
}

/* Process */
.process-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.process-steps:before {
  content: '';
  position: absolute;
  top: 40px;
  left: 60px;
  right: 60px;
  height: 2px;
  background-color: var(--secondary-color);
  z-index: -1;
}

.process-step {
  text-align: center;
  flex: 1;
  max-width: 200px;
}

/* Testimonials */
.testimonials-slider {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s ease;
}

.testimonial-slide {
  flex: 0 0 100%;
}

.testimonial-author {
  display: flex;
  align-items: center;
  margin-top: 20px;
}

.testimonial-author-info {
  margin-left: 15px;
}

.testimonial-author-name {
  font-weight: 600;
}

.testimonial-author-title {
  color: var(--secondary-color);
  font-size: 14px;
}

/* FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

/* Contact */
.contact-info {
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
}

.contact-icon {
  margin-right: 15px;
  color: var(--primary-color);
}

.contact-form {
  background-color: var(--white-color);
  padding: 30px;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

/* Footer */
.footer {
  background-color: var(--primary-color);
  color: var(--white-color);
  padding: 60px 0 30px;
}

.footer h3 {
  color: var(--white-color);
}

.footer-links {
  list-style: none;
}

.footer-link {
  margin-bottom: 10px;
}

.footer-link a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-link a:hover {
  color: var(--white-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  margin-top: 40px;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.social-links {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  background-color: var(--accent-color);
  color: var(--white-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 99;
}

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

.back-to-top:hover {
  background-color: var(--primary-color);
}

/* Responsive */
@media (max-width: 992px) {
  h1 {
    font-size: 36px;
  }
  
  h2 {
    font-size: 28px;
  }
  
  .process-steps:before {
    display: none;
  }
  
  .process-steps {
    flex-direction: column;
    align-items: center;
  }
  
  .process-step {
    margin-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-list {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--white-color);
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .nav-list.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-item {
    margin: 10px 0;
  }
  
  .hero {
    padding: 120px 0 80px;
  }
  
  .row {
    flex-direction: column;
  }
  
  .col {
    margin-bottom: 30px;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 32px;
  }
  
  h2 {
    font-size: 24px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .hero {
    padding: 100px 0 60px;
  }
}