:root {
  /* Kelyko palette: Framboise #E51D55, Carmin #C91843, Bordeaux #981B3D, Charbon #242329. */
  --ink: #242329;
  --muted: #5f5d66;
  --line: #e8e6ea;
  --bg: #ffffff;
  --soft: #f7f6f8;
  --framboise: #e51d55;
  --brand: #c91843;
  --brand-dark: #981b3d;
  --brand-soft: #fdecf1;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--brand); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.logo { font-weight: 800; font-size: 21px; color: var(--brand); text-decoration: none; letter-spacing: 1px; text-transform: uppercase; }
header { border-top: 4px solid var(--framboise); }
nav { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; font-size: 15px; }
nav a.cta { background: var(--brand); color: #fff; padding: 8px 14px; border-radius: 8px; font-weight: 600; }

.hero { padding: 72px 0 56px; }
.hero h1 { font-size: clamp(32px, 5vw, 50px); line-height: 1.1; letter-spacing: -1px; margin: 0 0 18px; max-width: 760px; }
.hero p { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.button { display: inline-block; padding: 13px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; }
.button.primary { background: var(--brand); color: #fff; }
.button.primary:hover, nav a.cta:hover { background: var(--brand-dark); }
.button.secondary { border: 1px solid var(--line); color: var(--ink); }

section { padding: 56px 0; }
section.soft { background: var(--soft); }
h2 { font-size: 30px; letter-spacing: -0.5px; margin: 0 0 12px; }
.lead { color: var(--muted); max-width: 680px; margin: 0 0 32px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

.methods { display: flex; flex-wrap: wrap; gap: 10px; }
.method { border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; background: #fff; font-weight: 600; font-size: 15px; }

.steps { counter-reset: step; display: grid; gap: 16px; padding: 0; list-style: none; max-width: 720px; }
.steps li { counter-increment: step; padding-left: 48px; position: relative; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-weight: 700; display: grid; place-items: center; }

pre { background: var(--ink); color: #f7f6f8; padding: 18px; border-radius: 12px; overflow-x: auto; font-size: 14px; line-height: 1.5; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92em; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }

.doc { max-width: 760px; padding: 48px 0 72px; }
.doc h1 { font-size: 34px; letter-spacing: -0.6px; }
.todo { background: #fffaeb; color: #93370d; border-radius: 8px; padding: 2px 6px; }
.notice { background: #fffaeb; color: #93370d; border-radius: 10px; padding: 14px 16px; margin: 20px 0; }

footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }

@media (max-width: 640px) {
  nav a:not(.cta) { display: none; }
  .hero { padding: 48px 0 40px; }
}