/* =========================================================================
   Sellers Sanity — brand site stylesheet (v2)
   Cool neutral palette · centered layout · alternating section bands
   ========================================================================= */

:root {
  --brand: #ff6b1a;
  --brand-ink: #cf5810;
  --brand-soft: #fff2e8;

  --ink: #14181f;
  --ink-soft: #3d4552;
  --muted: #667085;
  --line: #e6e8ec;

  --bg: #ffffff;
  --bg-alt: #f7f8fa;
  --footer-bg: #14181f;

  --radius: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04), 0 6px 18px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 18px 46px rgba(16, 24, 40, 0.10);

  --container: 1120px;
  --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: 1.65;
  -webkit-font-smoothing: antialiased;
  border-top: 3px solid var(--brand);
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}
img, svg { max-width: 100%; display: block; }
a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- header ---------------------------------------------------- */

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 16.5px; color: var(--ink); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand__mark { width: 32px; height: 32px; flex: 0 0 32px; border-radius: 8px; }

.nav__links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav__links a {
  font-family: var(--font-head); font-weight: 600; font-size: 14px;
  color: var(--ink-soft); padding: 8px 12px; border-radius: 8px;
}
.nav__links a:hover { color: var(--ink); background: var(--bg-alt); text-decoration: none; }
.nav__links a[aria-current="page"] { color: var(--brand-ink); }

.nav__toggle {
  display: none; background: none; border: 1px solid var(--line); border-radius: 9px;
  width: 40px; height: 40px; cursor: pointer; color: var(--ink);
}
.nav__toggle svg { margin: 0 auto; }

@media (max-width: 760px) {
  .nav__toggle { display: grid; place-items: center; }
  .nav__links {
    position: absolute; left: 0; right: 0; top: 66px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 8px 24px 14px;
  }
  .nav__links[hidden] { display: none; }
  .nav__links a { padding: 12px 10px; font-size: 15.5px; border-radius: 8px; }
}

/* ---------- section scaffold ---------------------------------------- */

.section { padding: 76px 0; }
.section--alt { background: var(--bg-alt); }
.section__head { max-width: 660px; margin: 0 auto 44px; text-align: center; }
.section__head--left { margin-left: 0; text-align: left; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-size: 12px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--brand-ink);
  background: var(--brand-soft); border-radius: 999px; padding: 6px 12px;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
h2.section__title { font-size: clamp(25px, 3.2vw, 33px); font-weight: 800; }
.section__lead { color: var(--muted); font-size: 16.5px; margin-top: 14px; }

/* ---------- hero --------------------------------------------------- */

.hero { padding: 84px 0 76px; text-align: center; }
.hero .container { max-width: 820px; }
.hero h1 { font-size: clamp(33px, 5vw, 52px); font-weight: 800; letter-spacing: -0.03em; }
.hero p { margin: 20px auto 0; font-size: 18px; color: var(--muted); max-width: 60ch; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 30px; }
.chips--left { justify-content: flex-start; }
.chip {
  border: 1px solid var(--line); background: var(--bg); border-radius: 999px;
  padding: 8px 16px; font-size: 13px; font-weight: 600; color: var(--ink-soft);
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-weight: 700; font-size: 15px;
  padding: 13px 24px; border-radius: 11px; border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--brand-ink); transform: translateY(-1px); }
.btn--ghost { background: var(--bg); color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn-row--center { justify-content: center; }

/* ---------- grids / cards ----------------------------------------- */

.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 26px; box-shadow: var(--shadow-sm);
}
.card__num {
  font-family: var(--font-head); font-size: 13px; font-weight: 800;
  color: var(--brand); letter-spacing: 0.08em;
}
.card h3 { font-size: 17px; font-weight: 800; margin: 10px 0 8px; }
.card p { font-size: 14px; color: var(--muted); }

/* how-we-work steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: step; }
.step { padding-top: 18px; border-top: 2px solid var(--brand); }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-head); font-weight: 800; font-size: 12.5px;
  letter-spacing: 0.1em; color: var(--brand); margin-bottom: 8px;
}
.step h3 { font-size: 17px; font-weight: 800; margin: 0 0 6px; }
.step p { color: var(--muted); font-size: 14.5px; }

/* ---------- split (prose + facts) -------------------------------- */

.split { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 52px; align-items: start; }
.prose p { color: var(--ink-soft); font-size: 16px; }
.prose p + p { margin-top: 16px; }
.prose h3 { font-size: 19px; font-weight: 800; margin: 30px 0 8px; }
.prose > h3:first-child { margin-top: 0; }

.facts {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 24px; box-shadow: var(--shadow-sm);
}
.section--alt .facts { background: var(--bg); }
.facts h3 {
  font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 14px;
}
.facts ul { list-style: none; display: grid; gap: 12px; }
.facts li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink-soft); }
.facts li::before { content: ""; flex: 0 0 7px; width: 7px; height: 7px; margin-top: 7px; border-radius: 50%; background: var(--brand); }

/* ---------- definition list ------------------------------------- */

.deflist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 40px; }
.deflist dt { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.deflist dd { font-size: 16px; font-weight: 600; color: var(--ink); }

.note {
  margin-top: 36px; border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 20px 22px; background: var(--bg); color: var(--ink-soft); font-size: 14.5px;
}

/* ---------- footer --------------------------------------------- */

.site-footer { background: var(--footer-bg); color: #c4c8d0; padding: 56px 0 30px; }
.site-footer .brand { color: #fff; }
.footer__top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 36px; }
.footer__brand p { margin-top: 12px; font-size: 14px; color: #9aa0ac; max-width: 34ch; }
.footer__col h4 { font-family: var(--font-head); font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: #fff; margin-bottom: 12px; }
.footer__col ul { list-style: none; }
.footer__col li { padding: 4px 0; }
.footer__col a { color: #c4c8d0; font-size: 14px; }
.footer__col a:hover { color: #fff; }
.footer__bottom {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.10);
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between;
  font-size: 13px; color: #8b909c;
}

/* ---------- responsive --------------------------------------- */

@media (max-width: 900px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .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: 56px 0; }
  .hero { padding: 60px 0 54px; }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .deflist { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}