:root {
  --bg: #ffffff; --fg: #111827; --muted: #4b5563; --line: #e5e7eb; --card: #f9fafb;
  --accent: #15803d; --accent-fg: #ffffff; --soft: #dcfce7;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220; --fg: #f3f4f6; --muted: #9ca3af; --line: #1f2937; --card: #111827;
    --accent: #22c55e; --accent-fg: #052e16; --soft: #052e16;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; color: var(--fg); text-decoration: none; }
.logo img { width: 28px; height: 28px; }
nav .links a { margin-left: 18px; color: var(--muted); text-decoration: none; font-size: 15px; }
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; padding: 40px 0 60px; }
.hero h1 { font-size: clamp(32px, 5vw, 48px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p { color: var(--muted); font-size: 19px; margin: 0 0 24px; }
.hero img { width: 100%; max-width: 420px; border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(0,0,0,.12); justify-self: center; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-fg); padding: 12px 20px; border-radius: 10px; font-weight: 700; text-decoration: none; }
.btn.secondary { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.note { font-size: 14px; color: var(--muted); margin-top: 12px; }
section { padding: 56px 0; border-top: 1px solid var(--line); }
h2 { font-size: 30px; margin: 0 0 24px; letter-spacing: -0.01em; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.price { font-size: 36px; font-weight: 800; margin: 8px 0; }
.price small { font-size: 15px; color: var(--muted); font-weight: 500; }
.card ul { padding-left: 18px; margin: 12px 0 18px; color: var(--muted); font-size: 15px; }
.card.featured { border: 2px solid var(--accent); }
.badge { display: inline-block; background: var(--soft); color: var(--accent); font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 999px; }
table.compare { width: 100%; border-collapse: collapse; font-size: 15px; }
table.compare th, table.compare td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; }
table.compare td:not(:first-child), table.compare th:not(:first-child) { text-align: center; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 8px 0 0; }
footer { padding: 32px 0 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
footer a { color: var(--muted); margin-right: 16px; }
.doc { max-width: 760px; padding: 24px 16px 64px; margin: 0 auto; }
.doc h1 { font-size: 34px; }
.doc h2 { font-size: 22px; margin-top: 32px; }
@media (max-width: 760px) {
  .hero, .grid3 { grid-template-columns: 1fr; }
  nav .links a:not(:last-child) { display: none; }
  .hero { padding-top: 16px; }
  table.compare { font-size: 13px; }
}