/* Modern CSS with mobile responsiveness - Teal/Blue Theme */
:root {
  --primary-color: #00BCD4;
  --secondary-color: #0097A7;
  --dark-color: #006064;
  --light-color: #E0F7FA;
  --text-color: #263238;
  --accent-color: #FF9800;
  --white: #ffffff;
  --background: #ECEFF1;
  --gradient: linear-gradient(120deg, var(--primary-color), var(--dark-color));
  --box-shadow: 0 6px 20px rgba(0, 188, 212, 0.15);
}

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

body {
  font-family: 'Roboto', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Utility Classes */
.flex {
  display: flex;
}

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

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

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

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

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(255, 152, 0, 0.25);
}

.btn-primary:hover {
  background-color: #FB8C00;
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(255, 152, 0, 0.35);
}

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

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

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

.section-title {
  margin-bottom: 50px;
  position: relative;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.section-title p {
  color: var(--text-color);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.card {
  background-color: var(--white);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0, 188, 212, 0.2);
}

/* Header */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.header-inner {
  height: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo svg {
  width: 40px;
  height: 40px;
}

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

/* Hero Section */
.hero {
  background: var(--light-color);
  padding-top: 160px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  right: -200px;
  top: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: var(--gradient);
  opacity: 0.05;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  left: -200px;
  bottom: -200px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: var(--gradient);
  opacity: 0.05;
  z-index: 0;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--dark-color);
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-text p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: var(--text-color);
  max-width: 500px;
}

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

.hero-image svg {
  max-width: 100%;
  height: auto;
}

/* Features Section */
.features {
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

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

.feature-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--secondary-color);
}

.feature-description {
  color: var(--text-color);
}

/* How It Works */
.how-it-works {
  background-color: var(--background);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step {
  position: relative;
  z-index: 1;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 20px;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 10px;
}

.step-description {
  font-size: 0.95rem;
  color: var(--text-color);
}

/* CTA Section */
.cta {
  background: var(--gradient);
  color: var(--white);
  text-align: center;
  padding: 100px 0;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.cta p {
  margin-bottom: 30px;
  font-size: 1.2rem;
  opacity: 0.9;
}

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

.cta .btn:hover {
  background: var(--light-color);
  color: var(--dark-color);
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  gap: 10px;
}

.footer-logo svg {
  width: 30px;
  height: 30px;
}

.footer-about p {
  opacity: 0.8;
  margin-bottom: 20px;
}

.footer-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--primary-color);
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--white);
  opacity: 0.8;
  text-decoration: none;
  transition: opacity 0.3s;
}

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

.copyright {
  text-align: center;
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0.7;
  font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 992px) {
  .features-grid, 
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-image {
    order: -1;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .hero {
    padding-top: 140px;
  }
  
  .hero-text h1 {
    font-size: 2.5rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 576px) {
  .features-grid,
  .steps {
    grid-template-columns: 1fr;
  }
  
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }
}