:root {
  color-scheme: light;
  --ink: #3f2d1c;
  --brown: #68451f;
  --muted: #51402f;
  --gold: #f7c844;
  --pastel: #fbf5e7;
  --soft: #fff8e8;
  --paper: #fffdf7;
  --line: #eadcb9;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--pastel);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--pastel); color: var(--ink); font-size: 16px; line-height: 1.6; }
a { color: var(--brown); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
.shell { width: min(100% - 32px, 1080px); margin-inline: auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 18px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 20px; font-weight: 800; letter-spacing: -.04em; text-decoration: none; }
.mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; background: var(--gold); color: var(--ink); box-shadow: 0 4px 10px #76512c35; font-size: 20px; }
.brand small { color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: .04em; }
.nav { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 14px; }
.nav a { color: inherit; text-decoration: none; }
.nav a:hover { color: var(--brown); }
.hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(24px, 5vw, 56px); padding-block: clamp(44px, 8vw, 84px); }
.eyebrow { margin: 0 0 12px; color: var(--brown); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 600px; margin-bottom: 16px; font-size: clamp(38px, 6vw, 64px); line-height: 1.03; letter-spacing: -.055em; }
h2 { font-size: clamp(25px, 3.8vw, 36px); line-height: 1.12; letter-spacing: -.035em; }
h3 { margin-bottom: 6px; font-size: 18px; line-height: 1.25; }
.lede { max-width: 560px; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 8px; padding: 0 18px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: var(--paper); font-weight: 750; text-decoration: none; box-shadow: 0 5px 15px #76512c10; }
.button-primary { border-color: var(--brown); color: var(--paper); background: var(--brown); box-shadow: 0 8px 18px #76512c2a; }
.note { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.demo { padding: 14px; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); box-shadow: 0 24px 55px #76512c1c, 0 4px 12px #76512c10; }
.demo-head { display: flex; align-items: center; gap: 9px; padding: 2px 2px 12px; border-bottom: 1px solid var(--line); font-weight: 750; }
.demo-head .mark { width: 28px; height: 28px; border-radius: 8px; font-size: 15px; }
.demo-status { margin-left: auto; color: var(--brown); font-size: 11px; }
.browser { margin-top: 12px; padding: 10px; border: 1px solid var(--line); border-radius: 14px; background: var(--soft); }
.browser-bar { display: flex; align-items: center; gap: 6px; padding-bottom: 9px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.browser-dot { width: 7px; height: 7px; border-radius: 50%; background: #b89562; }
.browser-label { margin-left: 5px; font-weight: 700; }
.working { display: grid; grid-template-columns: .78fr 1.22fr; align-items: start; gap: 10px; padding-top: 10px; }
.thumbnail { display: flex; min-height: 190px; flex-direction: column; justify-content: space-between; padding: 12px; border-radius: 11px; color: var(--paper); background: linear-gradient(145deg, #493521, #76512c 65%, #c08b39); box-shadow: 0 6px 14px #76512c28; }
.thumbnail-label { font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.thumbnail-title { font-size: 18px; font-weight: 850; line-height: 1.02; }
.video-title { display: block; margin-top: 8px; font-size: 12px; line-height: 1.3; }
.video-meta { color: var(--muted); font-size: 11px; }
.extension { padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); box-shadow: 0 9px 20px #76512c1d; }
.extension-head { display: flex; align-items: center; gap: 7px; margin-bottom: 10px; font-size: 12px; font-weight: 800; }
.mini-mark { display: grid; width: 22px; height: 22px; place-items: center; border-radius: 6px; background: var(--gold); }
.extension-label { display: block; margin-bottom: 5px; color: var(--brown); font-size: 10px; font-weight: 850; letter-spacing: .12em; }
.extension p { margin-bottom: 8px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.keypoint { display: flex; align-items: flex-start; gap: 7px; margin-top: 8px; font-size: 12px; line-height: 1.4; }
.keypoint b { display: grid; width: 20px; height: 20px; flex: 0 0 auto; place-items: center; border-radius: 50%; color: var(--gold); background: var(--brown); font-size: 10px; }
.trend { display: inline-flex; margin-top: 11px; padding: 5px 8px; border-radius: 7px; color: var(--brown); background: #fff0bd; font-size: 10px; font-weight: 750; }
.section { padding-block: 34px 48px; }
.section-title { max-width: 660px; margin-bottom: 22px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature { padding: 18px; border: 1px solid var(--line); border-radius: 15px; background: var(--paper); box-shadow: 0 8px 20px #76512c0d; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }
.callout { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-block: 8px 42px; padding: 20px; border: 1px solid #e7d7ad; border-radius: 16px; background: var(--paper); box-shadow: 0 9px 24px #76512c13; }
.callout p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.content { max-width: 820px; padding-block: 52px 72px; }
.content > p, .content li { color: var(--muted); }
.content li + li { margin-top: 8px; }
.steps { display: grid; gap: 12px; margin-block: 24px; }
.step { display: flex; align-items: flex-start; gap: 14px; padding: 16px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); box-shadow: 0 6px 16px #76512c12; }
.step-number { display: grid; width: 32px; height: 32px; flex: 0 0 auto; place-items: center; border-radius: 50%; color: var(--gold); background: var(--brown); font-weight: 800; }
.step p { margin: 0; color: var(--ink); font-size: 15px; }
.callout-warning { padding: 16px; border-left: 4px solid #c18b23; border-radius: 0 12px 12px 0; background: #fff2c6; color: var(--ink); }
.callout-warning p { margin: 0; color: var(--ink); }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .shell { width: min(100% - 24px, 1080px); }
  .topbar { align-items: flex-start; flex-direction: column; }
  .nav { gap: 14px; font-size: 13px; }
  .working { grid-template-columns: .72fr 1.28fr; gap: 7px; }
  .thumbnail { min-height: 175px; padding: 9px; }
  .thumbnail-title { font-size: 15px; }
  .extension { padding: 9px; }
  .callout { align-items: flex-start; flex-direction: column; }
}