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

:root {
  --primary-foreground: #ffffff;
  --secondary: #f1f5f9;
  --gradient-start: #6366f1;
  --gradient-end: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --info: #3b82f6;
  --primary: hsl(217, 91%, 60%);
  --primary-dark: hsl(217, 91%, 50%);
  --accent: hsl(259, 94%, 51%);
  --bg: hsl(0, 0%, 100%);
  --card-bg: hsl(0, 0%, 100%);
  --foreground: hsl(222, 84%, 5%);
  --muted: hsl(210, 40%, 96%);
  --muted-foreground: hsl(215, 16%, 47%);
  --border: hsl(214, 32%, 91%);
  --green-500: hsl(142, 71%, 45%);
  --gradient-hero: linear-gradient(
    135deg,
    hsl(217 91% 60%),
    hsl(259 94% 51%),
    hsl(280 100% 70%)
  );
  --gradient-primary: linear-gradient(
    135deg,
    hsl(217 91% 60%),
    hsl(259 94% 51%)
  );
  --gradient-secondary: linear-gradient(
    135deg,
    hsl(259, 94%, 51%),
    hsl(280, 100%, 70%)
  );
  --shadow-card: 0 4px 20px -8px rgba(59, 130, 246, 0.15);
  --shadow-primary: 0 10px 30px -5px rgba(59, 130, 246, 0.25);
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--bg);
  color: var(--foreground);
  line-height: 1.6;
  min-height: 100vh;
}

nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(214, 232, 241, 0.5);
  box-shadow: 0 0 30px rgba(168, 85, 247, 0.3);
}

/* Utility Classes */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Button */
.button {
  width: 100%;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.button-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

.button-primary:hover {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
  transform: translateY(-2px);
}

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

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

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

.button-hero:hover {
  background: rgba(255, 255, 255, 0.9);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

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

.btn-white:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
}

.button-outline-white {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid white;
}

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

/* Hero Section */
.hero-section {
  padding: 5rem 1rem;
  background: var(--gradient-secondary);
  text-align: center;
}

.hero-section h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 1.5rem;
}

.hero-section p {
  font-size: 1.25rem;
  color: var(--primary-foreground);
  max-width: 48rem;
  margin: 0 auto 2rem;
}

/* Navigation */
.nav-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-logo img {
  height: 2.5rem;
  width: auto;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: color 0.3s ease;
}

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

.nav-links a.active {
  color: var(--primary);
}

.nav-cta {
  display: none;
  align-items: center;
  gap: 1rem;
}

.nav-button-ghost {
  background: transparent;
  color: var(--foreground);
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background-color 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.nav-button-ghost:hover {
  background-color: rgba(59, 130, 246, 0.1);
}

.nav-button-primary {
  background: var(--gradient-primary);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.25);
}

.nav-button-primary:hover {
  opacity: 0.9;
  box-shadow: 0 6px 15px rgba(59, 130, 246, 0.35);
}

.mobile-menu-button {
  display: block;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-button svg {
  width: 1.25rem;
  height: 1.25rem;
}

.mobile-menu {
  display: none;
  padding: 0.5rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.mobile-menu.active {
  display: block;
}

.mobile-nav-links {
  list-style: none;
  margin-bottom: 0.5rem;
}

.mobile-nav-links a {
  display: block;
  padding: 0.75rem;
  border-radius: 0.375rem;
  text-decoration: none;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: all 0.3s ease;
}

.mobile-nav-links a:hover {
  color: var(--foreground);
  background-color: var(--muted);
}

.mobile-nav-links a.active {
  color: var(--primary);
  background-color: var(--muted);
}

.mobile-cta {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-cta .nav-button-ghost,
.mobile-cta .nav-button-primary {
  width: 100%;
  text-align: center;
}

/* Section */
.section {
  padding: 5rem 1rem;
}

.section-muted {
  background-color: rgba(210, 220, 240, 0.3);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--muted-foreground);
  text-align: center;
  max-width: 42rem;
  margin: 0 auto 4rem;
}

/* Desktop Navigation */
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: flex;
  }

  .mobile-menu-button {
    display: none;
  }
}

/* Footer */
footer {
  background-color: rgba(210, 220, 240, 0.3);
  border-top: 1px solid var(--border);
}

.footer-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 3rem 1rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  grid-column: span 1;
}

.footer-logo {
  height: 2rem;
  width: auto;
  margin-bottom: 1rem;
}

.footer-description {
  color: var(--muted-foreground);
  max-width: 28rem;
  line-height: 1.6;
}

.footer-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 1rem;
}

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

.footer-links a {
  color: var(--muted-foreground);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--foreground);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  color: var(--muted-foreground);
}

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

  .footer-brand {
    grid-column: span 2;
  }
}

@media (min-width: 768px) {
  .footer-brand {
    grid-column: span 2;
  }

  .hero-section h1 {
    font-size: 3rem;
  }

  .section-title {
    font-size: 2.5rem;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }

  .hero-section p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .card-popular {
    transform: scale(1);
  }

  .price {
    font-size: 2.5rem;
  }
  .footer-grid {
    flex-direction: column;
  }
}

/* Extra Small phones (up to 374px) */
@media (max-width: 374px) {
  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-logo {
    height: 3rem !important;
  }

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

/* Small phones (375px - 479px) */
@media (min-width: 375px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-logo {
    height: 4rem !important;
  }
}

/* Large phones (480px - 639px) */
@media (min-width: 480px) {
  .hero-float-1,
  .hero-float-2 {
    display: block;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1.0625rem;
  }
}

/* Tablets (640px - 767px) */
@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
    gap: 1rem;
  }

  .hero-buttons a {
    width: auto;
  }

  .hero-title {
    font-size: 2.5rem;
    padding: 0 2rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
    max-width: 85%;
  }

  .hero-float-1 {
    width: 15rem;
    height: 15rem;
    left: -3rem;
  }

  .hero-float-2 {
    width: 20rem;
    height: 20rem;
    right: -3rem;
  }
}

/* Desktop (768px - 1023px) */
@media (min-width: 768px) {
  .hero-content {
    padding: 5rem 2rem;
  }

  .hero-title {
    font-size: 3rem;
    margin-bottom: 1.25rem;
    padding: 0 3rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
    max-width: 48rem;
  }

  .hero-float-1 {
    width: 18rem;
    height: 18rem;
    left: 2rem;
    top: 5rem;
  }

  .hero-float-2 {
    width: 22rem;
    height: 22rem;
    right: 2rem;
    bottom: 5rem;
  }
}

/* Large Desktop (1024px - 1279px) */
@media (min-width: 1024px) {
  .hero-content {
    padding: 6rem 2rem;
  }

  .hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
  }

  .hero-subtitle {
    font-size: 1.375rem;
  }

  .hero-float-1 {
    width: 18rem;
    height: 18rem;
    left: 5rem;
  }

  .hero-float-2 {
    width: 24rem;
    height: 24rem;
    right: 5rem;
  }
}

/* Extra Large Desktop (1280px+) */
@media (min-width: 1280px) {
  .hero-title {
    font-size: 3.75rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }
}

.text-white {
  color: white !important;
}

        /* Button Styles */
        .btn {
            padding: 0.5rem 1rem;
            border-radius: 0.375rem;
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            border: 1px solid var(--border);
            background-color: var(--card-bg);
            color: var(--foreground);
        }

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