:root {
  --canvas: #F6F1EA; --card: #FFFDF9; --ink: #1E2A32; --ink-soft: #5B6770; --hairline: #E2D9CC;
  --teal: #0F766E; --teal-soft: #D5ECE8; --coral: #E8664F;
}
@media (prefers-color-scheme: dark) {
  :root { --canvas: #14191C; --card: #1D2428; --ink: #F1ECE4; --ink-soft: #A7B0B6; --hairline: #2F393F; --teal: #2DD4BF; --teal-soft: #173A37; --coral: #FF8A73; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: var(--teal); }
.container { max-width: 760px; margin: 0 auto; padding: 0 20px; }
.nav { border-bottom: 1px solid var(--hairline); }
.nav .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav ul { display: flex; gap: 18px; list-style: none; margin: 0; padding: 0; }
.nav a { text-decoration: none; font-weight: 600; font-size: 15px; }
.hero { text-align: center; padding: 64px 0 40px; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 10px 30px rgba(0,0,0,.15); }
.hero h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; margin: 24px 0 12px; letter-spacing: -0.02em; }
.hero p { color: var(--ink-soft); font-size: 19px; max-width: 540px; margin: 0 auto; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; padding: 24px 0 48px; }
.feature { background: var(--card); border: 1px solid var(--hairline); border-radius: 20px; padding: 20px; }
.feature h3 { margin: 0 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 15px; }
.note { color: var(--ink-soft); font-size: 14px; text-align: center; padding-bottom: 48px; }
.legal { padding: 40px 0 64px; }
.legal h1 { font-size: 34px; margin-bottom: 4px; }
.legal h2 { font-size: 20px; margin-top: 32px; }
.legal li { margin: 6px 0; }
.updated { color: var(--ink-soft); font-size: 14px; }
footer { border-top: 1px solid var(--hairline); padding: 24px 0; color: var(--ink-soft); font-size: 14px; }
footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }