:root {
  --primary-color: #2563eb;
  --secondary-color: #3b82f6;
  --accent-color: #f97316;
  --text-color: #1e293b;
  --light-text: #64748b;
  --white: #ffffff;
  --gray: #f8fafc;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--gray);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background-color: var(--white);
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.nav__list {
  display: flex;
  gap: 1.5rem;
}

.nav__link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

/* Hero */
.hero {
  padding: 4rem 0;
  background: linear-gradient(to right, var(--gray), var(--white));
}

.hero__content {
  max-width: 600px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.hero__subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

.hero__cta {
  background-color: var(--gray);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.cta__badge {
  font-weight: bold;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.cta__bonus {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--light-text);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.btn--primary:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.hero__image {
  margin-top: 2rem;
}

.hero__image img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

/* Features */
.features {
  padding: 4rem 0;
  background-color: var(--white);
}

.section-title {
  font-size: 2rem;
  font-family: var(--font-heading);
  margin-bottom: 2rem;
  text-align: center;
  color: var(--primary-color);
}

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

.feature-card {
  background-color: var(--gray);
  padding: 1.5rem;
  border-radius: 10px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.feature-card__icon {
  margin-bottom: 1rem;
}

.feature-card__icon img {
  width: 80px;
  height: 80px;
  margin: 0 auto;
}

.feature-card__title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--secondary-color);
}

/* Reviews */
.reviews {
  padding: 4rem 0;
}

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.review-card {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

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

.review-card__avatar {
  margin-bottom: 1rem;
}

.review-card__avatar img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
}

.review-card__quote {
  font-style: italic;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.review-card__author {
  color: var(--light-text);
}

/* FAQ */
.faq {
  padding: 4rem 0;
  background-color: var(--gray);
}

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

.accordion-item {
  background-color: var(--white);
  margin-bottom: 1rem;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.accordion-toggle {
  display: none;
}

.accordion-label {
  display: block;
  padding: 1.25rem;
  font-weight: bold;
  cursor: pointer;
  position: relative;
  transition: background-color 0.3s ease;
}

.accordion-label::after {
  content: '+';
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.accordion-toggle:checked + .accordion-label {
  background-color: var(--gray);
}

.accordion-toggle:checked + .accordion-label::after {
  content: '-';
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.25rem;
}

.accordion-toggle:checked ~ .accordion-content {
  max-height: 200px;
  padding: 1rem 1.25rem;
}

/* CTA Section */
.cta-section {
  padding: 4rem 0;
  background-color: var(--primary-color);
  color: var(--white);
}

.cta-box {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-box__title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-box__text {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.btn--large {
  font-size: 1.25rem;
  padding: 1rem 2rem;
}

/* Footer */
.footer {
  padding: 2rem 0;
  background-color: var(--white);
  border-top: 1px solid #e2e8f0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer__contact {
  color: var(--light-text);
}

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

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* Responsive */
@media (max-width: 768px) {
  .hero__title {
    font-size: 2rem;
  }
  
  .hero__subtitle {
    font-size: 1rem;
  }
  
  .features__grid,
  .reviews__grid {
    grid-template-columns: 1fr;
  }
}