:root {
  --primary-color: #05668D;
  --secondary-color: #4ECDC4;
  --tertiary-color: #00A896;
  --accent-color: #F0F3BD;
  --dark-bg: #02353C;
  --light-text: #FFFFFF;
  --dark-text: #333333;
  --card-bg: #FFFFFF;
  --gradient: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  --gradient-hover: linear-gradient(135deg, var(--tertiary-color), var(--secondary-color));
  --shadow: 0 8px 25px rgba(5, 102, 141, 0.2);
  --border-radius: 12px;
  --border-radius-small: 6px;
  --font-main: 'Nunito Sans', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-main);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: #f9f9f9;
  color: var(--dark-text);
  line-height: 1.6;
  overflow-x: hidden;
  font-size: 16px;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: color 0.3s ease;
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.section {
  padding: 80px 0;
  position: relative;
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--gradient);
  color: var(--light-text);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 50px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.btn:hover {
  background: var(--gradient-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(5, 102, 141, 0.3);
  color: var(--light-text);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: var(--light-text);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 40px;
  height: auto;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 0.5px;
}

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

.nav-list {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-item a {
  color: var(--dark-text);
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-item a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--secondary-color);
  transition: width 0.3s ease;
}

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

.hamburger {
  display: none;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  margin: 5px 0;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero Section */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
  background-color: #F7FBFC;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 168, 150, 0.05), rgba(5, 102, 141, 0.1));
  z-index: 0;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  color: var(--primary-color);
  position: relative;
}

.hero-title span {
  color: var(--tertiary-color);
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 40px;
  color: var(--dark-text);
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image {
  max-width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

/* Features Section */
.features {
  background-color: #fff;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--tertiary-color);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--primary-color);
}

.section-description {
  font-size: 1.1rem;
  color: var(--dark-text);
  max-width: 700px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient);
  z-index: -1;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--light-text);
}

.feature-icon svg {
  width: 30px;
  height: 30px;
  fill: currentColor;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--primary-color);
}

.feature-description {
  color: var(--dark-text);
  font-size: 1rem;
}

/* Process Section */
.process {
  background-color: #F7FBFC;
  position: relative;
}

.process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 168, 150, 0.05), rgba(5, 102, 141, 0.05));
  z-index: 0;
}

.process .container {
  position: relative;
  z-index: 1;
}

.steps-container {
  display: flex;
  justify-content: center;
  gap: 5%;
  margin-top: 50px;
}

.step {
  flex: 1;
  max-width: 300px;
  position: relative;
  text-align: center;
  z-index: 1;
  padding: 30px 20px;
  background: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.step:hover {
  transform: translateY(-5px);
}

.step-number {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--gradient);
  color: var(--light-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 auto 24px;
  position: relative;
  z-index: 2;
}

.step-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--primary-color);
}

.step-description {
  color: var(--dark-text);
  font-size: 1rem;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 35px;
  right: -30%;
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, var(--secondary-color), var(--tertiary-color));
  opacity: 0.3;
  z-index: 0;
}

/* Call to Action Section */
.cta {
  background: var(--gradient);
  color: var(--light-text);
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(rgba(255, 255, 255, 0.1) 10%, transparent 10.5%);
  background-size: 20px 20px;
  z-index: 0;
  opacity: 0.3;
}

.cta .container {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.cta-description {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 40px;
  opacity: 0.9;
}

.cta .btn {
  background: var(--light-text);
  color: var(--primary-color);
  font-size: 1.1rem;
  padding: 15px 40px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.cta .btn:hover {
  background: var(--accent-color);
  color: var(--primary-color);
}

/* Footer */
.footer {
  background-color: var(--dark-bg);
  color: var(--light-text);
  padding: 80px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 60px;
}

.footer-logo {
  margin-bottom: 20px;
}

.footer-logo-img {
  width: 120px;
  height: auto;
  margin-bottom: 15px;
}

.footer-text {
  opacity: 0.8;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-heading {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.footer-heading::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 2px;
  background: var(--secondary-color);
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--light-text);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--secondary-color);
  padding-left: 5px;
}

.copyright {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  opacity: 0.6;
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.active {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.active {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* Media Queries */
@media (max-width: 992px) {
  .hero {
    height: auto;
    padding: 120px 0 80px;
  }
  
  .hero-content {
    flex-direction: column;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .steps-container {
    flex-direction: column;
    align-items: center;
    gap: 50px;
  }
  
  .step {
    max-width: 400px;
    width: 100%;
  }
  
  .step:not(:last-child)::after {
    top: auto;
    bottom: -40px;
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 30px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 10px 0;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: #fff;
    padding: 20px 0;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    z-index: 999;
  }
  
  .nav-menu.active {
    transform: translateY(0);
  }
  
  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  
  .hamburger {
    display: block;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .feature-card {
    padding: 20px;
  }
  
  .feature-icon {
    width: 50px;
    height: 50px;
  }
  
  .feature-icon svg {
    width: 25px;
    height: 25px;
  }
  
  .cta-title {
    font-size: 2rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .btn {
    padding: 12px 25px;
    font-size: 0.9rem;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .footer {
    padding: 60px 0 20px;
  }
  
  .footer-content {
    gap: 30px;
  }
}