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

:root {
  --primary: #1e40af;
  --primary-foreground: #ffffff;
  --secondary: #e0f2fe;
  --secondary-foreground: #0c4a6e;
  --accent: #38bdf8;
  --muted: #64748b;
  --background: #ffffff;
  --foreground: #0f172a;
  --card: #ffffff;
  --border: #e2e8f0;
  --destructive: #ef4444;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--foreground);
  background: var(--background);
}

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

/* Header Styles */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  padding: 1rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--foreground);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: var(--primary-foreground);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--foreground);
}

.nav-buttons {
  display: flex;
  gap: 0.75rem;
}

.desktop-nav {
  display: none;
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
  }
}

.mobile-menu-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--foreground);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 1rem;
}

.mobile-menu-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.nav-link-mobile {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.nav-link-mobile:hover {
  color: var(--foreground);
}

.hidden {
  display: none !important;
}

/* Button Styles */
.btn {
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: #1e3a8a;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--foreground);
}

.btn-outline:hover {
  background: var(--secondary);
}

.btn-lg {
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
}

.w-full {
  width: 100%;
}

/* Hero Section */
.hero-section {
  padding: 4rem 0;
  background: var(--background);
}

@media (min-width: 768px) {
  .hero-section {
    padding: 6rem 0;
  }
}

.hero-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--secondary);
  color: var(--secondary-foreground);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  width: fit-content;
}

.badge-pulse {
  position: relative;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: 50%;
}

.badge-pulse-ring {
  position: absolute;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.75;
  animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--foreground);
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

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

.hero-description {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 40rem;
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

.social-proof {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1rem;
}

.avatar-group {
  display: flex;
  margin-left: -0.75rem;
}

.avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 2px solid var(--background);
  background: var(--secondary);
  margin-left: -0.75rem;
}

.social-proof-text {
  font-size: 0.875rem;
}

.font-semibold {
  font-weight: 600;
}

.text-muted {
  color: var(--muted);
}

.hero-image {
  position: relative;
}

.image-card {
  position: relative;
  background: rgba(226, 232, 240, 0.5);
  border-radius: 1rem;
  padding: 1rem;
}

@media (min-width: 1024px) {
  .image-card {
    padding: 2rem;
  }
}

.main-image {
  width: 100%;
  border-radius: 0.75rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.floating-card {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  display: none;
}

@media (min-width: 1024px) {
  .floating-card {
    display: block;
  }
}

.floating-card-left {
  top: 25%;
  left: -1rem;
}

.floating-card-right {
  bottom: 25%;
  right: -1rem;
}

.floating-card-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.floating-card-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(30, 64, 175, 0.1);
  font-size: 1.25rem;
}

.floating-card-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
}

.floating-card-subtitle {
  font-size: 0.75rem;
  color: var(--muted);
}

/* Trust Section */
.trust-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(248, 250, 252, 0.3);
  padding: 2rem 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.trust-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .trust-item {
    text-align: left;
  }
}

.trust-icon {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(30, 64, 175, 0.1);
  color: var(--primary);
}

.trust-title {
  font-weight: 600;
  color: var(--foreground);
}

.trust-subtitle {
  font-size: 0.875rem;
  color: var(--muted);
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.5rem;
  }
}

.section-description {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 48rem;
  margin: 0 auto;
}

/* Why Section */
.why-section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .why-section {
    padding: 6rem 0;
  }
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  transition: all 0.2s;
}

.feature-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.feature-description {
  color: var(--muted);
  line-height: 1.6;
}

/* Courses Section */
.courses-section {
  padding: 4rem 0;
  background: var(--secondary);
}

@media (min-width: 768px) {
  .courses-section {
    padding: 6rem 0;
  }
}

.courses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .courses-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.course-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  position: relative;
  transition: all 0.2s;
}

.course-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.course-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--accent);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.course-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 0.75rem;
}

.course-description {
  color: var(--muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.course-features {
  list-style: none;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.course-features li {
  color: var(--muted);
  font-size: 0.875rem;
}

/* How It Works */
.how-it-works-section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .how-it-works-section {
    padding: 6rem 0;
  }
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step {
  text-align: center;
}

.step-number {
  width: 4rem;
  height: 4rem;
  background: var(--primary);
  color: var(--primary-foreground);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.step-description {
  color: var(--muted);
  line-height: 1.6;
}

/* Testimonials */
.testimonials-section {
  padding: 4rem 0;
  background: var(--secondary);
}

@media (min-width: 768px) {
  .testimonials-section {
    padding: 6rem 0;
  }
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

.testimonial-content {
  margin-bottom: 1.5rem;
}

.testimonial-text {
  color: var(--muted);
  line-height: 1.6;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--secondary);
  flex-shrink: 0;
}

.author-name {
  font-weight: 600;
  color: var(--foreground);
}

.author-role {
  font-size: 0.875rem;
  color: var(--muted);
}

/* Contact Section */
.contact-section {
  padding: 4rem 0;
  background: var(--primary);
}

@media (min-width: 768px) {
  .contact-section {
    padding: 6rem 0;
  }
}

.contact-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
  }
}

.contact-content {
  color: var(--primary-foreground);
}

.contact-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .contact-title {
    font-size: 2.5rem;
  }
}

.contact-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
  line-height: 1.75;
}

.benefits-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.benefits-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.check-icon {
  color: var(--accent);
  flex-shrink: 0;
}

.benefits-list span {
  color: rgba(255, 255, 255, 0.9);
}

.form-card {
  background: var(--card);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.form-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  color: var(--foreground);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  color: var(--foreground);
  background: var(--background);
  transition: border-color 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
}

.form-input.error {
  border-color: var(--destructive);
}

.form-error {
  display: block;
  color: var(--destructive);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-disclaimer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 1rem;
}

.success-card {
  background: var(--card);
  border-radius: 0.75rem;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.success-icon {
  width: 4rem;
  height: 4rem;
  background: rgba(34, 197, 94, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.success-icon svg {
  color: #22c55e;
}

.success-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.success-description {
  color: var(--muted);
}

/* Footer */
.footer {
  background: var(--foreground);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0 1.5rem;
}

.footer-content {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 3fr;
  }
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand .logo-icon {
  background: var(--primary);
}

.footer-brand .logo-text {
  color: white;
}

.footer-description {
  color: rgba(255, 255, 255, 0.6);
  max-width: 20rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-heading {
  color: white;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-list a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-list a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}