* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

/* CSS variables */
:root {
  --primary-color: #4ade80;
  --primary-dark: #22c55e;
  --primary-light: #86efac;
  --bg-dark: #1a1a1a;
  --text-light: #f3f4f6;
  --text-gray: #9ca3af;
  --card-bg: #252525;
  --card-hover: #2e2e2e;
  --border-radius: 12px;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
}

body {
  background-color: var(--bg-dark);
  color: var(--text-light);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 15px;
  line-height: 1.6;
}

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

header {
  text-align: center;
  margin-bottom: 50px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  background: linear-gradient(to right, var(--primary-color), var(--primary-light));
  display: inline-block;
  background-clip: text;
  -webkit-background-clip: text; /* For Safari */
  color: transparent;
}

header p {
  color: var(--text-gray);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  height: 100%;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  background-color: var(--card-hover);
}

.card-header {
  padding: 30px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.plan-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, rgba(74, 222, 128, 0.2), rgba(74, 222, 128, 0.05));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.plan-icon i {
  font-size: 1.8rem;
  color: var(--primary-color);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.price {
  margin-bottom: 15px;
}

.currency {
  font-size: 1.5rem;
  margin-right: 2px;
  color: var(--primary-color);
  vertical-align: top;
}

.amount {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--primary-color);
}

.period {
  font-size: 1rem;
  color: var(--text-gray);
}

.description {
  font-size: 0.95rem;
  color: var(--text-gray);
}

.card-body {
  padding: 30px;
  flex-grow: 1;
}

.features {
  list-style: none;
}

.features li {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.features li i {
  margin-right: 10px;
  font-size: 0.9rem;
}

.features li i.fa-check {
  color: var(--primary-color);
}

.features li i.fa-times {
  color: #ef4444;
}

.features li.disabled {
  opacity: 0.7;
  color: var(--text-gray);
}

.card-footer {
  padding: 20px 30px 30px;
}

.btn {
  display: block;
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  color: var(--text-light);
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn:hover {
  border-color: var(--primary-color);
  background-color: rgba(74, 222, 128, 0.1);
}

.btn-accent {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: #000;
  animation: pulse 2s infinite;
}

.btn-accent:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

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

.popular:hover {
  transform: translateY(-10px) scale(1.05);
}

.popular-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: var(--primary-color);
  color: #000;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
  z-index: 3;
}

.testimonial {
  margin-top: 60px;
  display: flex;
  justify-content: center;
}

.quote {
  max-width: 700px;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 40px;
  position: relative;
  box-shadow: var(--shadow-md);
}

.quote i {
  color: var(--primary-color);
  font-size: 2rem;
  opacity: 0.3;
  position: absolute;
  top: 20px;
  left: 20px;
}

.quote p {
  font-size: 1.1rem;
  margin-bottom: 20px;
  line-height: 1.7;
  position: relative;
  padding-left: 15px;
}

.author {
  display: flex;
  align-items: center;
}

.avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: 15px;
  border: 2px solid var(--primary-color);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.info h4 {
  font-size: 1.1rem;
  margin-bottom: 3px;
}

.info p {
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--primary-color);
}

@media (max-width: 768px) {
  body {
    padding: 30px 15px;
  }

  header {
    margin-bottom: 30px;
  }

  header h1 {
    font-size: 2rem;
  }

  .pricing-cards {
    grid-template-columns: 1fr;
    min-width: 400px;
    margin: 0 auto 40px;
  }

  .card,
  .popular {
    transform: none;
  }

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

  .testimonial {
    margin-top: 40px;
  }

  .quote {
    padding: 30px;
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(74, 222, 128, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
  }
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  animation: fadeIn 0.3s ease;
}

.modal {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 30px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.modal-content p {
  font-size: 1.1rem;
  color: var(--text-light);
}

.modal-content strong {
  color: var(--primary-color);
}

.close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--text-gray);
  transition: color 0.2s ease;
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Selected card highlight */
.card.selected {
  border: 2px solid var(--primary-color);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px) scale(1.03);
}