:root {
  --blue-50: #eff6ff;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --gray-50: #f9fafb;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--gray-800); background: #fff; font-family: Arial, Helvetica, sans-serif; }
button, input { font: inherit; }
.page-shell { min-height: 100vh; display: flex; flex-direction: column; background: linear-gradient(to bottom, var(--blue-50), #fff); }
.wide-container { width: 100%; max-width: 80rem; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
.narrow-container { width: 100%; max-width: 64rem; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
.site-header { position: sticky; top: 0; z-index: 10; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / 0.1); }
.header-inner { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; padding-top: 1rem; padding-bottom: 1rem; }
.brand { margin: 0; color: var(--blue-600); font-size: 1.5rem; line-height: 2rem; font-weight: 700; }
.release-note { color: var(--gray-500); font-size: 0.875rem; }
.hero { padding-top: 4rem; padding-bottom: 4rem; text-align: center; }
.hero-title { margin: 0 0 1.5rem; color: var(--blue-700); font-size: 2.25rem; line-height: 2.5rem; font-weight: 800; letter-spacing: -0.025em; }
.hero-title span { display: block; }
.hero-copy { margin: 0 auto 2.5rem; max-width: 58rem; color: var(--gray-600); font-size: 1.125rem; line-height: 1.75rem; }
.hero-image { display: block; width: 16rem; height: auto; margin: 0 auto 2.5rem; opacity: 0.9; }
.primary-button { display: inline-block; border-radius: 9999px; background: var(--blue-600); padding: 0.75rem 2rem; color: #fff; font-weight: 600; text-decoration: none; box-shadow: 0 4px 6px rgb(0 0 0 / 0.1); transition: background-color 150ms ease; }
.primary-button:hover, .waitlist-form button:hover { background: var(--blue-700); }
.section { width: 100%; padding: 4rem 0; }
.section-white { background: #fff; }
.section-gradient { background: linear-gradient(to bottom, #fff, var(--gray-50)); }
.section-heading { margin-bottom: 3rem; text-align: center; }
.section-heading h3 { margin: 0 0 1rem; color: var(--gray-800); font-size: 1.875rem; line-height: 2.25rem; font-weight: 700; }
.section-heading p { margin: 0; color: var(--gray-600); line-height: 1.625; }
.feature-grid { display: grid; gap: 2rem; }
.three-columns { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-card { padding: 1.5rem; border-radius: 0.5rem; background: var(--blue-50); text-align: center; box-shadow: 0 1px 2px rgb(0 0 0 / 0.05); }
.feature-icon, .trust-icon { width: 2.5rem; height: 2.5rem; margin: 0 auto 1rem; fill: none; stroke: var(--blue-600); stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.feature-card h4, .capability-item h4 { margin: 0 0 0.5rem; font-size: 1.25rem; line-height: 1.75rem; font-weight: 600; }
.feature-card p, .capability-item p { margin: 0; color: var(--gray-600); line-height: 1.625; }
.capability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
.capability-column { display: flex; flex-direction: column; gap: 1rem; }
.capability-item { display: flex; align-items: flex-start; gap: 0.75rem; }
.check-icon { flex: 0 0 auto; width: 1.5rem; height: 1.5rem; margin-top: 0.25rem; fill: none; stroke: var(--blue-600); stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.capability-item h4 { font-size: 1.125rem; line-height: 1.75rem; }
.trust-message { max-width: 48rem; color: var(--gray-700); text-align: center; line-height: 1.625; }
.trust-message p { margin: 0; }
.waitlist-section { background: linear-gradient(to bottom, var(--gray-50), #fff); }
.waitlist-heading { margin-bottom: 2.5rem; }
.fine-print { display: block; margin-top: 0.5rem; color: var(--gray-500); font-size: 0.875rem; }
.form-container { max-width: 28rem; margin: 0 auto; padding: 0 1.5rem; }
.waitlist-form { display: flex; flex-direction: column; gap: 0.75rem; }
.waitlist-form input { min-width: 0; flex: 1; border: 1px solid #d1d5db; border-radius: 0.25rem; padding: 0.5rem 0.75rem; color: var(--gray-800); outline: none; }
.waitlist-form input:focus { border-color: var(--blue-600); box-shadow: 0 0 0 1px var(--blue-600); }
.waitlist-form button { border: 0; border-radius: 0.25rem; background: var(--blue-600); padding: 0.5rem 1rem; color: #fff; font-weight: 600; cursor: pointer; box-shadow: 0 1px 3px rgb(0 0 0 / 0.1); transition: background-color 150ms ease; }
.form-note { margin: 0.75rem 0 0; color: var(--gray-500); font-size: 0.875rem; line-height: 1.5; }
.site-footer { width: 100%; padding: 1rem 1.5rem; background: var(--blue-600); color: #fff; text-align: center; font-size: 0.875rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (min-width: 640px) {
  .hero-title { font-size: 3rem; line-height: 1; }
  .waitlist-form { flex-direction: row; }
}

@media (max-width: 767px) {
  .three-columns, .capability-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .header-inner { align-items: flex-start; gap: 0.75rem; }
  .release-note { text-align: right; }
  .hero-title { font-size: 2rem; line-height: 2.4rem; }
  .hero-copy { font-size: 1rem; line-height: 1.625rem; }
}