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

:root {
  --blue: #7c3aed;
  --blue-dark: #6d28d9;
  --blue-light: #f5f3ff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  line-height: 1.6;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex; align-items: center;
  text-decoration: none;
}
.logo-img {
  height: 36px; width: auto; max-width: 180px;
  object-fit: contain;
}
.nav-links {
  display: flex; align-items: center; gap: 28px;
}
.nav-links a {
  text-decoration: none; color: var(--gray-600);
  font-size: 14px; font-weight: 500; transition: color 0.15s;
}
.nav-links a:hover { color: var(--gray-900); }
.nav-links a.btn-primary { color: #fff; }
.nav-links a.btn-primary:hover { color: #fff; }
.nav-github {
  display: flex; align-items: center; gap: 6px;
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--gray-700); margin: 4px 0; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none; font-weight: 600; border-radius: 8px;
  transition: all 0.15s; cursor: pointer; border: none; font-family: inherit;
}
.btn-primary {
  background: var(--blue); color: #fff !important;
}
.btn-primary:hover { background: var(--blue-dark); }
.btn-outline {
  background: #fff; color: var(--gray-700);
  border: 1px solid var(--gray-300);
}
.btn-outline:hover { border-color: var(--gray-400); background: var(--gray-50); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-block { width: 100%; justify-content: center; padding: 12px; font-size: 14px; }

/* Hero */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--blue-light) 0%, #fff 100%);
}
.badge {
  display: inline-block; padding: 6px 16px;
  background: var(--blue-light); color: var(--blue);
  border-radius: 20px; font-size: 13px; font-weight: 600;
  margin-bottom: 24px; border: 1px solid #c4b5fd;
}
.hero h1 {
  font-size: 52px; font-weight: 800; line-height: 1.15;
  color: var(--gray-900); margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 18px; color: var(--gray-500);
  max-width: 600px; margin: 0 auto 36px; line-height: 1.7;
}
.hero-actions {
  display: flex; gap: 12px; justify-content: center;
  flex-wrap: wrap; margin-bottom: 60px;
}

/* Browser mockup */
.hero-image { max-width: 900px; margin: 0 auto; }
.browser-frame {
  border: 1px solid var(--gray-200); border-radius: 12px;
  overflow: hidden; background: #fff;
  box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}
.browser-dots {
  display: flex; gap: 6px; padding: 12px 16px;
  background: var(--gray-50); border-bottom: 1px solid var(--gray-200);
}
.browser-dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--gray-300);
}
.browser-content {
  display: flex; height: 400px;
}
.mock-sidebar {
  width: 48px; background: var(--gray-800); flex-shrink: 0;
}
.mock-canvas {
  flex: 1; padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 12px;
  background: var(--gray-50);
}
.mock-widget {
  border-radius: 8px; border: 1px solid var(--gray-200);
  background: #fff;
}
.mock-bar {
  background: linear-gradient(to top, var(--blue) 40%, #a78bfa 40%, #a78bfa 55%, #c4b5fd 55%, #c4b5fd 70%, #fff 70%);
  background-size: 20% 100%;
  background-repeat: repeat-x;
  background-position: bottom;
}
.mock-line {
  background: linear-gradient(135deg, #fff 30%, #a78bfa 50%, #fff 70%);
}
.mock-pie {
  background: conic-gradient(var(--blue) 0% 35%, #a78bfa 35% 60%, #c4b5fd 60% 80%, #ddd6fe 80% 100%);
  border-radius: 50% !important;
  width: 80%; height: 80%; margin: auto;
  border: none !important;
}
.mock-table {
  background: repeating-linear-gradient(0deg, #fff 0px, #fff 28px, var(--gray-100) 28px, var(--gray-100) 29px);
}
.mock-kpi {
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 800; color: var(--blue);
}
.mock-kpi::after { content: '1,247'; }
.mock-filter {
  background: repeating-linear-gradient(0deg, #fff 0px, #fff 24px, var(--blue-light) 24px, var(--blue-light) 25px);
}
.mock-panel {
  width: 200px; background: #fff; flex-shrink: 0;
  border-left: 1px solid var(--gray-200);
}

/* Sections */
section { padding: 100px 0; }
section h2 {
  font-size: 36px; font-weight: 800; text-align: center;
  color: var(--gray-900); margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-sub {
  text-align: center; color: var(--gray-500);
  font-size: 17px; margin-bottom: 48px;
  max-width: 500px; margin-left: auto; margin-right: auto;
}

/* Features */
.features { background: var(--gray-50); }
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 12px; padding: 28px;
  transition: box-shadow 0.2s;
}
.feature-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
.feature-icon { font-size: 28px; margin-bottom: 16px; display: flex; align-items: center; justify-content: flex-start; }
.feature-card h3 {
  font-size: 17px; font-weight: 700; color: var(--gray-900);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px; color: var(--gray-500); line-height: 1.6;
}

/* Visualizations */
.viz-grid {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.viz-card {
  background: var(--gray-50); border: 1px solid var(--gray-200);
  border-radius: 10px; padding: 20px; text-align: center;
  transition: all 0.2s;
}
.viz-card:hover {
  background: var(--blue-light); border-color: #c4b5fd;
}
.viz-icon { font-size: 24px; margin-bottom: 8px; display: flex; justify-content: center; }
.viz-card span {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--gray-800);
}
.viz-card small {
  display: block; font-size: 11px; color: var(--gray-400);
  margin-top: 4px;
}

/* Tech */
.tech { background: var(--gray-900); color: #fff; }
.tech h2 { color: #fff; }
.tech-grid {
  display: flex; justify-content: center; gap: 40px;
  flex-wrap: wrap;
}
.tech-item {
  text-align: center; padding: 20px;
}
.tech-item strong {
  display: block; font-size: 18px; margin-bottom: 4px;
}
.tech-item span {
  font-size: 13px; color: var(--gray-400);
}

/* Pricing */
.pricing { background: var(--gray-50); }
.pricing-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 24px; max-width: 700px; margin: 0 auto;
}
.pricing-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 12px; padding: 36px; position: relative;
}
.pricing-featured {
  border-color: var(--blue);
  box-shadow: 0 8px 32px rgba(59,130,246,0.12);
}
.pricing-badge {
  position: absolute; top: -12px; right: 20px;
  background: var(--blue); color: #fff;
  padding: 4px 14px; border-radius: 12px;
  font-size: 12px; font-weight: 600;
}
.pricing-name {
  font-size: 16px; font-weight: 700; color: var(--gray-600);
  margin-bottom: 8px;
}
.pricing-price {
  font-size: 42px; font-weight: 800; color: var(--gray-900);
}
.pricing-period {
  font-size: 14px; color: var(--gray-400); margin-bottom: 24px;
}
.pricing-card ul {
  list-style: none; margin-bottom: 28px;
}
.pricing-card li {
  font-size: 14px; color: var(--gray-600);
  padding: 6px 0; padding-left: 24px; position: relative;
}
.pricing-card li::before {
  content: '\2713'; position: absolute; left: 0;
  color: #22c55e; font-weight: 700;
}

/* Get Started */
.get-started { text-align: center; }
.code-block {
  max-width: 600px; margin: 0 auto 24px;
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--gray-200);
  text-align: left;
}
.code-header {
  background: var(--gray-800); color: var(--gray-400);
  padding: 10px 16px; font-size: 12px; font-weight: 600;
}
.code-block pre {
  background: var(--gray-900); color: #e2e8f0;
  padding: 20px; font-size: 13px; line-height: 1.8;
  overflow-x: auto;
}
.code-block code { font-family: 'JetBrains Mono', 'Fira Code', monospace; }
.comment { color: var(--gray-500); }
.get-started-sub {
  font-size: 15px; color: var(--gray-500);
}
.get-started-sub code {
  background: var(--gray-100); padding: 2px 8px;
  border-radius: 4px; font-size: 13px;
}

/* Footer */
.footer {
  background: var(--gray-900); color: var(--gray-400);
  padding: 60px 0 24px;
}
.footer-inner {
  display: flex; justify-content: space-between;
  padding-bottom: 40px; border-bottom: 1px solid var(--gray-700);
  gap: 40px;
}
.footer-brand { max-width: 260px; }
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand .logo-img { filter: brightness(0) invert(1); }
.footer-brand p { font-size: 14px; }
.footer-links {
  display: flex; gap: 60px;
}
.footer-links h4 {
  color: #fff; font-size: 13px; font-weight: 600;
  margin-bottom: 12px; text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-links a {
  display: block; color: var(--gray-400);
  text-decoration: none; font-size: 14px;
  padding: 3px 0; transition: color 0.15s;
}
.footer-links a:hover { color: #fff; }
.footer-bottom {
  padding-top: 24px; text-align: center;
  font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: #fff; padding: 16px 24px; border-bottom: 1px solid var(--gray-200); gap: 12px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .features-grid { grid-template-columns: 1fr; }
  .viz-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
  .footer-links { flex-direction: column; gap: 24px; }
  .browser-content { height: 250px; }
  .mock-panel { display: none; }
}