:root {
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --bg-dark: #0B0F19;
  --bg-card: rgba(17, 24, 39, 0.7);
  --text-main: #F3F4F6;
  --text-muted: #9CA3AF;
  --accent: #10B981;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Header */
header {
  padding: 1.5rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(90deg, #60A5FA, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav a {
  font-weight: 500;
  color: var(--text-main);
  transition: color 0.3s;
}

nav a:hover {
  color: #A78BFA;
}

.btn-primary {
  background: var(--primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
  background: radial-gradient(circle at center, rgba(79, 70, 229, 0.15) 0%, rgba(11, 15, 25, 1) 70%);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

/* Section Common */
section {
  padding: 6rem 5%;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 4rem;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(79, 70, 229, 0.2);
  position: relative;
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
}

.plan-name {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.plan-price {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.plan-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin: 2rem 0;
  flex-grow: 1;
}

.plan-features li {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
}

.plan-features li::before {
  content: "✓";
  color: var(--accent);
  font-weight: bold;
}

.btn-outline {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  text-align: center;
  font-weight: 600;
  transition: all 0.3s;
  display: block;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-block {
  width: 100%;
  text-align: center;
}

/* Reviews */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.review-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stars {
  color: #FBBF24;
  margin-bottom: 1rem;
}

.review-text {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}

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

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

/* FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  padding: 1.5rem;
}

.faq-question {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

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

/* Blog Links */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: transform 0.3s;
}

.blog-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
}

.blog-date {
  font-size: 0.875rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.blog-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.blog-excerpt {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.read-more {
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Footer */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 3rem 5%;
  text-align: center;
  color: var(--text-muted);
}

.seo-links {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
}

/* Article Page specific styles */
.article-header {
  padding-top: 8rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem 6rem;
}

.article-content h2 {
  font-size: 1.75rem;
  margin: 2rem 0 1rem;
  color: #fff;
}

.article-content p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

.article-content ul, .article-content ol {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-cta {
  background: rgba(79, 70, 229, 0.1);
  border: 1px solid var(--primary);
  padding: 2rem;
  border-radius: 1rem;
  text-align: center;
  margin-top: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav ul {
    display: none; /* Hide for simplicity on mobile, or add hamburger menu */
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
}