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

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  transition: background 0.3s ease, color 0.3s ease;
}

/* Custom Properties */
:root {
  --primary-color: #4a90e2;
  --secondary-color: #ff6b6b;
  --text-color: #2d3436;
  --bg-color: #f4f7fa;
  --card-bg: #fff;
  --bg-gradient: linear-gradient(135deg, #4a90e2, #ff6b6b);
  --glass-bg: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --card-bg: #2c2c2c;
  --text-color: #e0e0e0;
  --glass-bg: rgba(255, 255, 255, 0.1);
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  background: var(--card-bg);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

.nav-links ul {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin: 0 1rem;
}

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

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

/* CTA Button */
.cta-button {
  padding: 0.75rem 1.5rem;
  background: var(--bg-gradient);
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Theme Toggle */
.theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--text-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
  margin-left: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.theme-toggle:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: scale(1.1);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-color);
  margin: 2px 0;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-gradient);
  color: white;
  text-align: center;
  padding: 2rem;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

/* Features Section */
.features {
  padding: 5rem 5%;
  text-align: center;
  background: var(--bg-color);
}

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

.feature-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

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

.feature-card img {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
  margin-top: 1rem;
}

/* Pricing Section */
.pricing {
  padding: 5rem 5%;
  text-align: center;
  background: var(--bg-color);
}

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

.pricing-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.pricing-card.popular {
  border: 2px solid var(--primary-color);
  transform: scale(1.05);
}

.pricing-card:hover {
  transform: translateY(-5px) scale(1.05);
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.pricing-card .price {
  font-size: 2rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 1.5rem;
}

.pricing-card ul li {
  margin: 0.5rem 0;
}

/* Contact Section - Glassmorphism */
section.contact {
  padding: 5rem 5%;
  text-align: center;
  background: var(--bg-color);
}

.contact-form.glass {
  max-width: 600px;
  margin: 2rem auto;
  display: grid;
  gap: 1.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-group label {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--text-color);
  border-radius: 5px;
  font-size: 1rem;
  background: var(--glass-bg);
  color: var(--text-color);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 5px rgba(74, 144, 226, 0.3);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .cta-button {
  justify-self: center;
  width: 200px;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  background: var(--bg-color);
  color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--card-bg);
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links ul {
    flex-direction: column;
  }

  .nav-links li {
    margin: 1rem 0;
  }

  .cta-button {
    margin-left: auto;
  }

  .theme-toggle {
    margin-left: 1rem;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .hero-content h1 {
    font-size: 2rem;
  }

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

  .contact-form {
    padding: 1rem;
  }

  .form-group input,
  .form-group textarea {
    font-size: 0.9rem;
  }

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