/* =========================================================================
   Sellers Sanity — theme: BOLD BLOCK  (joinssa.com)
   White + hard black · offset shadows · oversized display type
   ========================================================================= */

:root {
  --brand: #ff6b1a;
  --brand-ink: #e2540a;
  --ink: #0a0a0a;
  --ink-soft: #333333;
  --muted: #5f5f5f;
  --line: #0a0a0a;
  --hair: #e6e6e6;
  --bg: #ffffff;
  --bg-alt: #fff6ef;

  --shadow: 6px 6px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --container: 1160px;
  --font-head: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); background: var(--bg); color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; color: var(--ink); text-transform: none; }
img, svg { max-width: 100%; display: block; }
a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 26px; }
.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--ink); color: #fff; padding: 10px 16px; }
.skip-link:focus { left: 0; }

/* header */
.site-header { border-bottom: 3px solid var(--ink); background: var(--bg); position: sticky; top: 0; z-index: 100; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 18px; color: var(--ink); text-decoration: none; letter-spacing: -0.03em; }
.brand__mark { width: 34px; height: 34px; flex: 0 0 34px; border-radius: 8px; border: 2px solid var(--ink); }
.nav__links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav__links a { font-family: var(--font-head); font-weight: 700; font-size: 13.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink); text-decoration: none; padding: 8px 12px; border: 2px solid transparent; }
.nav__links a:hover { border-color: var(--ink); text-decoration: none; }
.nav__links a[aria-current="page"] { background: var(--brand); border-color: var(--ink); }
.nav__toggle { display: none; background: #fff; border: 2px solid var(--ink); width: 44px; height: 44px; cursor: pointer; color: var(--ink); box-shadow: var(--shadow-sm); }
.nav__toggle svg { margin: 0 auto; }
@media (max-width: 780px) {
  .nav__toggle { display: grid; place-items: center; }
  .nav__links { position: absolute; left: 0; right: 0; top: 72px; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 3px solid var(--ink); padding: 10px 26px 16px; }
  .nav__links[hidden] { display: none; }
  .nav__links a { padding: 13px 12px; font-size: 15px; border: 2px solid var(--ink); margin-top: 8px; }
}

/* sections */
.section { padding: 84px 0; }
.section--alt { background: var(--bg-alt); border-top: 3px solid var(--ink); border-bottom: 3px solid var(--ink); }
.section__head { max-width: 720px; margin-bottom: 46px; }
.eyebrow { display: inline-block; font-family: var(--font-head); font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink); background: var(--brand); border: 2px solid var(--ink); padding: 5px 12px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }
h2.section__title { font-size: clamp(30px, 4.6vw, 50px); font-weight: 800; }
.section__lead { color: var(--ink-soft); font-size: 17px; margin-top: 16px; font-weight: 500; }

.prose p { color: var(--ink-soft); font-size: 16px; }
.prose p + p { margin-top: 16px; }
.prose h3 { font-size: 22px; font-weight: 800; margin: 30px 0 8px; }
.prose > h3:first-child { margin-top: 0; }

/* hero */
.hero { padding: 96px 0 84px; }
.hero h1 { font-size: clamp(42px, 7vw, 84px); font-weight: 800; max-width: 15ch; }
.hero p { margin-top: 24px; font-size: 18.5px; color: var(--ink-soft); max-width: 52ch; font-weight: 500; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.chip { font-family: var(--font-head); font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; color: var(--ink); background: #fff; border: 2px solid var(--ink); padding: 7px 14px; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-head); font-weight: 800; font-size: 15px; text-transform: uppercase; letter-spacing: 0.03em; padding: 14px 26px; border: 2px solid var(--ink); text-decoration: none; box-shadow: var(--shadow); transition: transform .1s, box-shadow .1s; }
.btn:hover { text-decoration: none; transform: translate(-2px, -2px); box-shadow: 8px 8px 0 var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--ink); }
.btn--primary { background: var(--brand); color: var(--ink); }
.btn--ghost { background: #fff; color: var(--ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.btn-row--center { justify-content: flex-start; }

/* grids */
.grid { display: grid; gap: 22px; margin-top: 40px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: #fff; border: 2px solid var(--ink); padding: 26px; box-shadow: var(--shadow); }
.section--alt .card { background: #fff; }
.card__num { font-family: var(--font-head); font-size: 14px; font-weight: 800; color: var(--ink); background: var(--brand); border: 2px solid var(--ink); display: inline-block; padding: 2px 8px; }
.card h3 { font-size: 18px; font-weight: 800; margin: 14px 0 8px; }
.card p { font-size: 14px; color: var(--muted); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; margin-top: 8px; }
.step { background: #fff; border: 2px solid var(--ink); box-shadow: var(--shadow); padding: 24px; }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); font-family: var(--font-head); font-weight: 800; font-size: 30px; color: var(--brand-ink); display: block; margin-bottom: 8px; }
.step h3 { font-size: 18px; font-weight: 800; margin: 0 0 6px; }
.step p { color: var(--muted); font-size: 14px; }

/* split + facts */
.split { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 44px; align-items: start; }
.facts { background: var(--brand); border: 2px solid var(--ink); box-shadow: var(--shadow); padding: 24px; }
.facts h3 { font-family: var(--font-head); font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink); margin-bottom: 14px; }
.facts ul { list-style: none; display: grid; gap: 12px; }
.facts li { font-size: 14.5px; font-weight: 600; color: var(--ink); padding-left: 20px; position: relative; }
.facts li::before { content: "▪"; position: absolute; left: 0; }

/* deflist */
.deflist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.deflist > div { border: 2px solid var(--ink); padding: 16px 18px; box-shadow: var(--shadow-sm); background: #fff; }
.deflist dt { font-family: var(--font-head); font-size: 11px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.deflist dd { font-family: var(--font-head); font-size: 17px; font-weight: 800; color: var(--ink); }

.note { margin-top: 40px; border: 2px dashed var(--ink); padding: 20px 22px; background: #fff; color: var(--ink-soft); font-size: 14.5px; font-weight: 500; }

/* footer */
.site-footer { background: var(--ink); color: #d6d6d6; padding: 56px 0 28px; border-top: 3px solid var(--ink); }
.site-footer .brand { color: #fff; }
.site-footer .brand__mark { border-color: #fff; }
.footer__top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 34px; }
.footer__brand p { margin-top: 14px; font-size: 14px; color: #9a9a9a; max-width: 34ch; font-weight: 500; }
.footer__col h4 { font-family: var(--font-head); font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brand); margin-bottom: 12px; }
.footer__col ul { list-style: none; }
.footer__col li { padding: 4px 0; }
.footer__col a { color: #d6d6d6; font-size: 14px; text-decoration: none; }
.footer__col a:hover { color: #fff; }
.footer__bottom { margin-top: 38px; padding-top: 20px; border-top: 2px solid #333; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-size: 12.5px; color: #8a8a8a; }

@media (max-width: 920px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .section { padding: 60px 0; }
  .hero { padding: 66px 0 58px; }
  .grid--2, .grid--3, .deflist { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .btn { box-shadow: var(--shadow-sm); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }