:root {
  --bg-base: #0b0f19;
  --bg-surface: rgba(20, 27, 45, 0.6);
  --bg-surface-hover: rgba(30, 41, 59, 0.8);
  --primary: #00f2fe;
  --secondary: #4facfe;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.08);
  --gradient-text: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-gradient { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section { padding: 100px 0; }
.section-title { text-align: center; font-size: 2.5rem; font-weight: 700; margin-bottom: 1rem; }
.section-subtitle { text-align: center; color: var(--text-secondary); font-size: 1.125rem; margin-bottom: 4rem; max-width: 600px; margin-left: auto; margin-right: auto; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 32px; border-radius: 50px; font-weight: 600; text-decoration: none; transition: all 0.3s ease; cursor: pointer; border: none; font-size: 1rem; }
.btn-primary { background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%); color: #fff; box-shadow: 0 10px 20px -10px rgba(0, 242, 254, 0.5); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 15px 25px -10px rgba(0, 242, 254, 0.7); }
.btn-secondary { background: rgba(255, 255, 255, 0.1); color: #fff; backdrop-filter: blur(10px); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.15); transform: translateY(-2px); }

/* Navbar */
.navbar { position: fixed; top: 0; left: 0; width: 100%; padding: 20px 0; z-index: 100; backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,0.05); background: rgba(11, 15, 25, 0.8); }
.nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.logo { font-size: 1.5rem; font-weight: 700; color: #fff; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, #00f2fe, #4facfe); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: var(--text-secondary); text-decoration: none; transition: color 0.3s; font-weight: 500; }
.nav-links a:hover { color: #fff; }
.nav-actions { display: flex; gap: 16px; }

/* Hero */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; padding-top: 80px; }
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; background-image: url('hero-bg.png'); background-size: cover; background-position: center; opacity: 0.5; }
.hero-glow { position: absolute; width: 800px; height: 800px; background: radial-gradient(circle, rgba(79, 172, 254, 0.1) 0%, rgba(0, 242, 254, 0) 70%); top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: -1; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; width: 100%; }
.hero-text { max-width: 600px; }
.hero-text h1 { font-size: 4rem; font-weight: 800; line-height: 1.1; margin-bottom: 1.5rem; letter-spacing: -1px; }
.hero-text p { font-size: 1.25rem; color: var(--text-secondary); margin-bottom: 2.5rem; }
.hero-actions { display: flex; gap: 16px; justify-content: flex-start; }

/* Hero Visual & Animations */
.hero-visual { position: relative; height: 500px; display: flex; justify-content: center; align-items: center; }
.floating-cards { position: relative; width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; }
.float-card { position: absolute; background: rgba(20, 27, 45, 0.7); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 16px; padding: 20px; display: flex; align-items: center; gap: 16px; backdrop-filter: blur(12px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3); animation: floatCard linear infinite; }
.card-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(0, 242, 254, 0.1); display: flex; justify-content: center; align-items: center; }
.card-icon svg { width: 24px; height: 24px; }
.card-text h4 { font-size: 1.125rem; margin-bottom: 4px; color: #fff; }
.card-text span { font-size: 0.875rem; color: var(--text-secondary); }

/* Card specific animations */
.card-1 { top: 10%; right: 20%; animation-duration: 8s; animation-name: float1; z-index: 3; }
.card-2 { top: 40%; left: 10%; animation-duration: 10s; animation-name: float2; z-index: 2; }
.card-3 { bottom: 15%; right: 15%; animation-duration: 9s; animation-name: float3; z-index: 4; }

@keyframes float1 { 0%, 100% { transform: translateY(0) translateX(0); } 50% { transform: translateY(-20px) translateX(10px); } }
@keyframes float2 { 0%, 100% { transform: translateY(0) translateX(0); } 50% { transform: translateY(-15px) translateX(-15px); } }
@keyframes float3 { 0%, 100% { transform: translateY(0) translateX(0); } 50% { transform: translateY(20px) translateX(-10px); } }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.feature-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 20px; padding: 40px 30px; backdrop-filter: blur(10px); transition: all 0.3s ease; }
.feature-card:hover { transform: translateY(-5px); border-color: rgba(0, 242, 254, 0.3); background: var(--bg-surface-hover); }
.feature-icon { width: 60px; height: 60px; border-radius: 16px; background: rgba(0, 242, 254, 0.1); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; color: var(--primary); }
.feature-card h3 { font-size: 1.5rem; margin-bottom: 16px; }
.feature-card p { color: var(--text-secondary); }

/* Support */
.support-section { background: linear-gradient(180deg, transparent 0%, rgba(20, 27, 45, 0.5) 100%); }
.support-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 20px; }
.support-card { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-color); border-radius: 16px; padding: 30px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 16px; transition: transform 0.3s ease; }
.support-card:hover { transform: translateY(-5px); background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.15); }
.support-card svg { width: 48px; height: 48px; color: #fff; }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; align-items: center; }
.pricing-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 24px; padding: 40px; position: relative; transition: all 0.3s ease; display: flex; flex-direction: column; height: 100%; }
.pricing-card.popular { border-color: var(--primary); transform: scale(1.05); background: linear-gradient(180deg, rgba(20, 27, 45, 0.8) 0%, rgba(0, 242, 254, 0.05) 100%); z-index: 1; }
.popular-badge { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--gradient-text); color: #fff; padding: 6px 16px; border-radius: 20px; font-size: 0.875rem; font-weight: 600; }
.price { font-size: 3.5rem; font-weight: 800; margin: 24px 0; color: #fff; }
.price span { font-size: 1rem; color: var(--text-secondary); font-weight: 400; }
.pricing-features { list-style: none; margin: 30px 0; flex-grow: 1; }
.pricing-features li { margin-bottom: 16px; display: flex; align-items: center; gap: 12px; color: var(--text-secondary); }
.pricing-features li svg { color: var(--primary); flex-shrink: 0; }
.pricing-card .btn { width: 100%; }

/* FAQ */
.faq-grid { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 16px; padding: 24px; margin-bottom: 16px; }
.faq-question { font-size: 1.125rem; font-weight: 600; margin-bottom: 12px; display: flex; justify-content: space-between; align-items: center; }
.faq-answer { color: var(--text-secondary); }

/* Reviews */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.review-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 16px; padding: 30px; }
.review-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.review-avatar { width: 48px; height: 48px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 1.25rem; color: var(--primary); }
.stars { color: #fbbf24; margin-bottom: 12px; letter-spacing: 2px; }
.review-content { color: var(--text-secondary); font-style: italic; }
.reviewer-info h4 { font-size: 1rem; margin-bottom: 4px; }
.reviewer-info span { font-size: 0.875rem; color: var(--text-secondary); }

/* Footer */
footer { border-top: 1px solid var(--border-color); padding: 60px 0 40px; margin-top: 60px; background: rgba(11, 15, 25, 0.8); }
.footer-nav { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }
.footer-nav a { color: var(--text-secondary); text-decoration: none; transition: color 0.3s ease; font-weight: 500; }
.footer-nav a:hover { color: var(--primary); }
.footer-bottom { text-align: center; color: var(--text-secondary); font-size: 0.875rem; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 24px; }
.footer-logo { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 1.5rem; font-weight: 700; color: #fff; text-decoration: none; margin-bottom: 30px; }

/* Page container (for inner pages) */
.page-header { padding: 160px 0 80px; text-align: center; border-bottom: 1px solid var(--border-color); background: radial-gradient(circle at top, rgba(0, 242, 254, 0.1) 0%, transparent 60%); }
.page-content { padding: 80px 24px; max-width: 800px; margin: 0 auto; color: var(--text-secondary); }
.page-content h2 { color: var(--text-primary); margin: 2rem 0 1rem; font-size: 1.5rem; }
.page-content p { margin-bottom: 1.5rem; }
.page-content ul { margin-bottom: 1.5rem; padding-left: 2rem; }
.page-content li { margin-bottom: 0.5rem; }

/* Blog Grid */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.blog-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 16px; overflow: hidden; text-decoration: none; transition: transform 0.3s ease, border-color 0.3s ease; display: flex; flex-direction: column; }
.blog-card:hover { transform: translateY(-5px); border-color: rgba(0, 242, 254, 0.4); }
.blog-image { width: 100%; height: 180px; }
.blog-content { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
.blog-date { font-size: 0.875rem; color: var(--primary); margin-bottom: 12px; font-weight: 600; }
.blog-content h3 { color: var(--text-primary); font-size: 1.25rem; margin-bottom: 12px; line-height: 1.4; }
.blog-content p { color: var(--text-secondary); font-size: 0.95rem; }

/* Article Page Specifics */
.article-container { max-width: 800px; margin: 0 auto; padding: 120px 24px 80px; }
.article-header { margin-bottom: 40px; text-align: center; }
.article-title { font-size: 2.5rem; font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 20px; }
.article-meta { color: var(--text-secondary); font-size: 0.9rem; display: flex; justify-content: center; gap: 20px; }
.article-body { font-size: 1.1rem; line-height: 1.8; color: #d1d5db; }
.article-body h2 { color: #fff; font-size: 1.75rem; margin: 40px 0 20px; border-bottom: 1px solid var(--border-color); padding-bottom: 10px; }
.article-body h3 { color: #e5e7eb; font-size: 1.4rem; margin: 30px 0 15px; }
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 20px; }
.article-body li { margin-bottom: 10px; }
.article-body a { color: var(--primary); text-decoration: none; border-bottom: 1px dashed var(--primary); }
.article-body a:hover { color: var(--secondary); border-bottom-style: solid; }
.article-body blockquote { border-left: 4px solid var(--primary); padding: 16px 20px; background: rgba(0, 242, 254, 0.05); margin: 24px 0; border-radius: 0 8px 8px 0; font-style: italic; }

/* Responsive */
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-text { margin: 0 auto; }
  .hero-text h1 { font-size: 3rem; }
  .hero-actions { justify-content: center; }
  .hero-visual { height: 350px; }
  .card-1 { right: 5%; }
  .card-2 { left: 0%; }
  .card-3 { right: 0%; bottom: 5%; }
  .pricing-card.popular { transform: none; }
  .section { padding: 60px 0; }
  .hero { padding-top: 100px; }
  .nav-links, .nav-actions .btn-secondary { display: none; }
  .nav-container { justify-content: space-between; }
  .footer-nav { flex-direction: column; align-items: center; gap: 20px; }
}