:root {
  color-scheme: light;
  --bg: #f7f9fb;
  --paper: #ffffff;
  --ink: #111827;
  --muted: #526071;
  --line: #dbe3ea;
  --accent: #0f766e;
  --accent-dark: #0b4f4a;
  --blue: #2563eb;
  --amber: #f2b705;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--accent-dark);
  text-underline-offset: 3px;
}

.wrap {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px max(16px, calc((100vw - 1080px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.site-nav div {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.site-nav .brand-link {
  color: var(--ink);
  font-size: 18px;
  letter-spacing: 0;
}

.hero,
.page-header {
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.10), transparent 34%),
    linear-gradient(315deg, rgba(37, 99, 235, 0.10), transparent 38%),
    var(--paper);
}

.hero {
  padding: 62px 0 50px;
}

.page-header {
  padding: 52px 0 36px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 36px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 780;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 740;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 740;
}

.lede {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: var(--accent);
  color: #ffffff;
}

.button.secondary {
  background: var(--paper);
  color: var(--ink);
}

.product-preview {
  overflow: hidden;
  border: 1px solid #1f2937;
  border-radius: 8px;
  background: #0f172a;
  box-shadow: var(--shadow);
}

.preview-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #dbeafe;
}

.preview-top span {
  width: 96px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--blue), var(--amber));
}

.preview-top strong {
  color: #fef3c7;
  font-size: 12px;
}

.preview-screen {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.50), transparent 44%),
    radial-gradient(circle at 70% 30%, rgba(37, 99, 235, 0.52), transparent 30%),
    #020617;
}

.play-symbol {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #ffffff;
  clip-path: polygon(38% 28%, 38% 72%, 74% 50%);
}

.preview-guide {
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.10);
}

.preview-guide div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 11px 14px;
  background: #111827;
  color: #d1d5db;
}

.preview-guide b {
  color: #fef3c7;
  font-size: 13px;
}

.preview-guide span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 0;
}

.meta.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.meta div,
.summary,
.notice,
.feature-grid article,
.support-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.meta div {
  min-width: 0;
  padding: 12px 14px;
}

.meta dt {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.meta dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-weight: 650;
}

main {
  padding: 28px 0 64px;
}

section {
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.summary,
.notice {
  margin: 0 0 8px;
  padding: 24px;
}

.notice {
  border-left: 5px solid var(--amber);
}

.feature-grid,
.support-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article,
.support-list article {
  padding: 20px;
}

p {
  margin: 0 0 14px;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0 0 0 20px;
  padding: 0;
}

li + li {
  margin-top: 8px;
}

strong {
  font-weight: 740;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper);
  padding: 24px 0;
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 800px) {
  .hero,
  .page-header {
    padding: 38px 0 28px;
  }

  .hero-grid,
  .feature-grid,
  .support-list,
  .meta,
  .meta.two {
    grid-template-columns: 1fr;
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .summary,
  .notice,
  .feature-grid article,
  .support-list article {
    padding: 20px;
  }
}