@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root, [data-theme="light"] {
  --primary: #2563EB;
  --secondary: #475569;
  --accent: #2563EB;
  --bg-color: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --border-color: #E2E8F0;
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-dim: #94A3B8;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
}

[data-theme="dark"] {
  --primary: #3B82F6;
  --secondary: #94A3B8;
  --accent: #3B82F6;
  --bg-color: #0B0F19;
  --bg-secondary: #111827;
  --border-color: #1E293B;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.6);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.8);
}

.logo-dark { display: none !important; }
.logo-light { display: inline-block !important; }
[data-theme="dark"] .logo-dark { display: inline-block !important; }
[data-theme="dark"] .logo-light { display: none !important; }

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-main);
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

h2 {
  font-size: 2.15rem;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-color);
  transition: border-color 0.25s ease;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: #2563EB;
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background-color: #1D4ED8;
  transform: translateY(-1px);
}

.btn-accent {
  background-color: #2563EB;
  color: #FFFFFF !important;
}

.btn-accent:hover {
  background-color: #1D4ED8;
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background-color: var(--bg-secondary);
  border-color: var(--primary);
  color: var(--primary);
}

/* Features Section */
.features {
  padding: 5rem 0;
  background-color: var(--bg-secondary);
  transition: background-color 0.25s ease;
}

.section-title {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3.5rem;
}

.section-title h2 {
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.section-title p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

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

.feature-card {
  background-color: var(--bg-color);
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--primary);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  color: var(--text-main);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Pricing Section */
.pricing {
  padding: 5rem 0;
  background-color: var(--bg-color);
  transition: background-color 0.25s ease;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  position: relative;
}

.pricing-card.popular::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pricing-card h3 {
  color: var(--text-main);
  font-size: 1.35rem;
  margin-bottom: 0.25rem;
}

.pricing-card > p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.price {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  line-height: 1;
}

.price span {
  font-size: 0.95rem;
  color: var(--text-dim);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.pricing-features li svg {
  color: var(--primary);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3.5rem 0 2rem;
  color: var(--text-muted);
  transition: background-color 0.25s ease;
}

.footer a:hover {
  color: var(--primary) !important;
}

/* Mobile Responsiveness */
@media (max-width: 992px) {
  .footer div[style*="grid-template-columns"] {
    grid-template-columns: 1fr 1fr !important;
  }
}

@media (max-width: 600px) {
  .footer div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 850px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0;
  }
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.85rem;
  }
  h1 {
    font-size: 2.25rem;
  }
  h2 {
    font-size: 1.75rem;
  }
  .pricing-grid, .feature-grid {
    grid-template-columns: 1fr;
  }
  .container {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.85rem;
  }
  .nav-links {
    gap: 0.5rem;
  }
  .nav-link {
    font-size: 0.85rem;
  }
}