:root {
  /* Color Palette */
  --primary-color: #1e3a8a;
  --primary-light: #3b82f6;
  --primary-dark: #1e40af;
  --secondary-color: #0ea5e9;
  --accent-color: #0284c7;
  --text-color: #0f172a;
  --text-light: #64748b;
  --text-muted: #94a3b8;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --white: #ffffff;
  --dark-blue: #0f172a;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 5rem;
  
  /* Other */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --container-max-width: 1200px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 20px rgba(0,0,0,0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Roboto', 'Arial', sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  font-size: 16px;
  background-color: var(--bg-light);
}

.page-wrapper {
  overflow: hidden;
  position: relative;
}

.container {
  width: 90%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

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

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

a:hover {
  color: var(--primary-light);
}

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  color: var(--primary-dark);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--space-md);
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: var(--space-xl);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  left: 50%;
  bottom: -15px;
  transform: translateX(-50%);
  border-radius: 5px;
}

/* Header */
.header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--space-sm) 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

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

.logo__domain {
  color: var(--primary-color);
}

.main-nav__list {
  display: flex;
  gap: var(--space-lg);
}

.main-nav__link {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
  padding: var(--space-xs) 0;
}

.main-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  transition: var(--transition);
}

.main-nav__link:hover {
  color: var(--primary-color);
}

.main-nav__link:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-color);
  margin: 5px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  background: linear-gradient(180deg, #f0f9ff 0%, var(--bg-light) 100%);
  padding: var(--space-xxl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before, .hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: 1;
}

.hero::before {
  width: 300px;
  height: 300px;
  top: -100px;
  left: -100px;
}

.hero::after {
  width: 400px;
  height: 400px;
  bottom: -200px;
  right: -200px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero__title {
  font-size: 2.8rem;
  margin-bottom: var(--space-md);
  color: var(--primary-dark);
}

.hero__text {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: var(--space-lg);
}

.hero__buttons {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.hero__feature {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-light);
  font-weight: 500;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.button--primary {
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  color: var(--white);
  border: none;
  box-shadow: 0 4px 10px rgba(30, 58, 138, 0.3);
}

.button--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(30, 58, 138, 0.4);
  color: var(--white);
}

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

.button--secondary:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

.button--large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.button--light {
  background-color: var(--white);
  color: var(--primary-color);
  border: none;
  box-shadow: var(--shadow-md);
}

.button--light:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* Advantages Section */
.advantages {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.advantage-card {
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
  height: 100%;
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.advantage-card__icon {
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
}

.advantage-card__title {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.advantage-card__text {
  color: var(--text-light);
  margin-bottom: 0;
}

/* How It Works Section */
.how-it-works {
  padding: var(--space-xxl) 0;
  background-color: var(--bg-gray);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.step-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
  text-align: center;
  height: 100%;
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.step-card__number {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
}

.step-card__title {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.step-card__text {
  color: var(--text-light);
  margin-bottom: 0;
}

.cta {
  text-align: center;
  margin-top: var(--space-xl);
}

/* Features Section */
.features {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.features::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
  bottom: -250px;
  left: -250px;
  border-radius: 50%;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  position: relative;
  z-index: 2;
}

.feature-card {
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border-top: 3px solid transparent;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--primary-color);
}

.feature-card__title {
  color: var(--primary-color);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.feature-card__text {
  color: var(--text-light);
  margin-bottom: 0;
}

/* Testimonials Section */
.testimonials {
  padding: var(--space-xxl) 0;
  background-color: var(--bg-gray);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.testimonial-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-size: 4rem;
  font-family: Georgia, serif;
  color: var(--primary-light);
  opacity: 0.2;
  position: absolute;
  top: 0;
  left: 15px;
  line-height: 1;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.testimonial-card__rating {
  color: #ffc107;
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.testimonial-card__text {
  color: var(--text-color);
  font-style: italic;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.testimonial-card__author {
  color: var(--text-light);
  font-weight: 600;
  margin-bottom: 0;
}

/* FAQ Section */
.faq {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
}

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

.faq-item {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.faq-item__question {
  padding: var(--space-md);
  background-color: var(--bg-light);
  cursor: pointer;
  position: relative;
  font-weight: 600;
  color: var(--text-color);
  transition: var(--transition);
}

.faq-item__question::after {
  content: '+';
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--primary-color);
  transition: var(--transition);
}

.faq-item.active .faq-item__question {
  color: var(--primary-color);
}

.faq-item.active .faq-item__question::after {
  content: '−';
  transform: translateY(-50%) rotate(180deg);
}

.faq-item__answer {
  padding: 0 var(--space-md);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-item__answer {
  padding: var(--space-md);
  max-height: 500px;
}

/* CTA Block */
.cta-block {
  padding: var(--space-xxl) 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--white);
}

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

.cta-block__title {
  color: var(--white);
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.cta-block__text {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  margin-bottom: var(--space-lg);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  background-color: var(--dark-blue);
  color: var(--white);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
}

.footer__brand {
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--white);
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.footer__title {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
}

.footer__menu {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__menu a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-md);
  text-align: center;
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  
  .hero__visual {
    order: -1;
    display: flex;
    justify-content: center;
  }
  
  .hero__title {
    font-size: 2.2rem;
  }
  
  .footer__content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .main-nav__list {
    flex-direction: column;
    align-items: center;
  }
  
  .menu-toggle {
    display: block;
    z-index: 1001;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  
  .hero__buttons {
    flex-direction: column;
  }
  
  .footer__links {
    grid-template-columns: 1fr;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__content, 
.advantage-card,
.step-card,
.feature-card,
.testimonial-card {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* Stagger animations */
.advantage-card:nth-child(2) { animation-delay: 0.1s; }
.advantage-card:nth-child(3) { animation-delay: 0.2s; }
.advantage-card:nth-child(4) { animation-delay: 0.3s; }

.step-card:nth-child(2) { animation-delay: 0.1s; }
.step-card:nth-child(3) { animation-delay: 0.2s; }
.step-card:nth-child(4) { animation-delay: 0.3s; }