:root {
  --primary: #4f46e5;
  --primary-dark: #312e81;
  --surface: #ffffff;
  --surface-alt: #f5f7ff;
  --text-main: #111827;
  --text-muted: #4b5563;
  --radius-lg: 22px;
  --radius-md: 14px;
}

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

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

a:hover {
  opacity: 0.85;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #4f46e5 0%, #7c5bfc 100%);
  color: var(--text-main);
  line-height: 1.65;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 36px 20px 48px;
}

.top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 30px;
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255,255,255,0.4);
  padding: 4px;
  box-shadow: 0 8px 16px rgba(79, 70, 229, 0.28);
  display: block;
  object-fit: contain;
}

.brand-name {
  font-size: 1.45rem;
  font-weight: 600;
}

.brand-tagline {
  font-size: 0.95rem;
  opacity: 0.85;
}

.top-nav {
  display: flex;
  gap: 18px;
  font-weight: 600;
}

main {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: 0 35px 80px rgba(79, 70, 229, 0.25);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
}

.pill {
  display: inline-block;
  background: rgba(79, 70, 229, 0.12);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 18px;
  color: var(--primary);
}

.hero p {
  font-size: 1.08rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 12px 30px rgba(79, 70, 229, 0.25);
}

.btn.ghost {
  background: rgba(239, 242, 255, 0.92);
  color: var(--text-main);
}

.btn:hover {
  transform: translateY(-2px);
}

.note {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-align: center;
}

.hero-highlights {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid rgba(79, 70, 229, 0.12);
  padding: 26px;
  box-shadow: 0 16px 36px rgba(79, 70, 229, 0.18);
}

.hero-highlights h3 {
  color: var(--primary);
  margin-bottom: 12px;
}

.hero-highlights ul {
  color: var(--text-muted);
  list-style: disc;
  margin-left: 1.2rem;
}

section {
  margin-bottom: 60px;
}

section h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 24px;
  color: var(--primary);
}

.benefit-grid,
.platform-grid,
.feature-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.benefit-grid article,
.platform-grid article,
.feature-grid article,
.pricing-card {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid rgba(79, 70, 229, 0.1);
  padding: 24px;
}

.benefit-grid h3,
.platform-grid h3,
.feature-grid h3 {
  color: var(--text-main);
  margin-bottom: 12px;
}

.benefit-grid p,
.platform-grid ul,
.feature-grid p {
  color: var(--text-muted);
}

.platform-grid ul {
  list-style: disc;
  margin-left: 1.2rem;
  line-height: 1.7;
}

.feature-grid .icon {
  font-size: 1.8rem;
  display: inline-block;
  margin-bottom: 8px;
}

.workflow {
  background: #f8f9ff;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(79, 70, 229, 0.12);
  padding: 42px;
  text-align: center;
}

.workflow ol {
  max-width: 600px;
  margin: 0 auto 20px;
  text-align: left;
  color: var(--text-muted);
  line-height: 1.8;
}

.pricing-card.highlight {
  border: 2px solid var(--primary);
  background: #eef2ff;
}

.pricing-card ul {
  list-style: disc;
  margin-left: 1.2rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.plan-link {
  display: inline-block;
  margin-top: 12px;
  font-weight: 600;
  color: var(--primary);
}

.price {
  font-size: 1.95rem;
  font-weight: 700;
  color: var(--primary);
  margin: 12px 0 8px;
}

.trial-badge {
  display: inline-block;
  background: #10b981;
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.billing-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
  font-style: italic;
}

.faq {
  margin-top: 48px;
  padding: 36px;
  background: var(--surface-alt);
  border-radius: var(--radius-md);
}

.faq h2 {
  margin-bottom: 24px;
}

.faq details {
  background: var(--surface);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 12px;
  border: 1px solid rgba(79, 70, 229, 0.1);
  cursor: pointer;
}

.faq details[open] {
  border-color: var(--primary);
}

.faq summary {
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: " ▸";
  color: var(--primary);
  float: right;
  transition: transform 0.2s;
}

.faq details[open] summary::after {
  transform: rotate(90deg);
}

.faq details p {
  margin-top: 12px;
  color: var(--text-muted);
  line-height: 1.7;
}

.cta {
  text-align: center;
  background: #f5f7ff;
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid rgba(79, 70, 229, 0.12);
}

.footer {
  text-align: center;
  color: #fff;
  margin-top: 32px;
  font-size: 0.95rem;
}

.footer span {
  margin: 0 6px;
  opacity: 0.6;
}

@media (max-width: 900px) {
  .top-bar {
    justify-content: center;
  }

  .top-nav {
    width: 100%;
    justify-content: center;
  }

  main {
    padding: 36px 28px;
  }
}

@media (max-width: 640px) {
  .hero-highlights ul {
    margin-left: 1rem;
  }

  .workflow {
    padding: 32px 24px;
  }
}