/* =========================================================================
   Sellers Sanity — theme: DARK PREMIUM  (hellossa.com)
   Near-black ground · glassy panels · orange glow accent
   ========================================================================= */

:root {
  --brand: #ff7a2f;
  --brand-ink: #ff8f4d;
  --brand-soft: rgba(255, 122, 47, 0.14);

  --ink: #eef1f6;
  --ink-soft: #b9c1cf;
  --muted: #8891a1;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --bg: #0c0e13;
  --bg-alt: #10131a;
  --panel: #141821;

  --radius: 12px;
  --radius-lg: 18px;
  --shadow-md: 0 24px 60px rgba(0, 0, 0, 0.5);
  --glow: 0 0 0 1px rgba(255, 122, 47, 0.25), 0 18px 50px rgba(255, 122, 47, 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: dark;
}

* { 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-soft); line-height: 1.68; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 800; 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(--brand); color: #0c0e13; padding: 10px 16px; border-radius: 0 0 8px 0; font-weight: 700; }
.skip-link:focus { left: 0; }

/* header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(12, 14, 19, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 16.5px; color: var(--ink); text-decoration: none; }
.brand__mark { width: 32px; height: 32px; flex: 0 0 32px; border-radius: 8px; box-shadow: var(--glow); }
.nav__links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav__links a { font-family: var(--font-head); font-weight: 600; font-size: 14px; color: var(--muted); text-decoration: none; padding: 8px 13px; border-radius: 8px; }
.nav__links a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.05); text-decoration: none; }
.nav__links a[aria-current="page"] { color: var(--brand-ink); }
.nav__toggle { display: none; background: var(--panel); border: 1px solid var(--line-strong); 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: 68px; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg-alt); 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; }
}

/* sections */
.section { padding: 78px 0; }
.section--alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.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: 1px solid rgba(255, 122, 47, 0.25); border-radius: 999px; padding: 6px 13px; margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 8px var(--brand); }
h2.section__title { font-size: clamp(25px, 3.2vw, 34px); font-weight: 800; }
.section__lead { color: var(--muted); font-size: 16.5px; margin-top: 14px; }

.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; color: var(--ink); }
.prose > h3:first-child { margin-top: 0; }

/* hero */
.hero { padding: 92px 0 80px; text-align: center; background: radial-gradient(700px 340px at 50% -10%, rgba(255, 122, 47, 0.16), transparent 60%); border-bottom: 1px solid var(--line); }
.hero .container { max-width: 820px; }
.hero h1 { font-size: clamp(34px, 5vw, 54px); font-weight: 800; letter-spacing: -0.03em; }
.hero h1 { background: linear-gradient(180deg, #ffffff, #c3c9d4); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { margin: 20px auto 0; font-size: 18px; color: var(--muted); max-width: 58ch; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 30px; }
.chips--left { justify-content: flex-start; }
.chip { background: var(--panel); border: 1px solid var(--line-strong); border-radius: 999px; padding: 8px 16px; font-size: 13px; font-weight: 600; color: var(--ink-soft); }

/* buttons */
.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; text-decoration: none; transition: transform .15s, box-shadow .15s, background .15s; }
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--brand); color: #0c0e13; box-shadow: 0 14px 34px rgba(255, 122, 47, 0.3); }
.btn--primary:hover { background: var(--brand-ink); transform: translateY(-1px); }
.btn--ghost { background: rgba(255, 255, 255, 0.04); color: var(--ink); border-color: var(--line-strong); }
.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 */
.grid { display: grid; gap: 18px; margin-top: 36px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; }
.card:hover { border-color: var(--line-strong); }
.card__num { font-family: var(--font-head); font-size: 13px; font-weight: 800; color: var(--brand); letter-spacing: 0.08em; }
.card h3 { font-size: 16.5px; font-weight: 800; margin: 10px 0 8px; color: var(--ink); }
.card p { font-size: 14px; color: var(--muted); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; margin-top: 8px; }
.step { border-top: 1px solid var(--line-strong); padding-top: 18px; }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); font-family: var(--font-head); font-weight: 800; font-size: 13px; letter-spacing: 0.1em; color: var(--brand); display: block; margin-bottom: 8px; }
.step h3 { font-size: 16.5px; font-weight: 800; margin: 0 0 6px; color: var(--ink); }
.step p { color: var(--muted); font-size: 14.5px; }

/* split + facts */
.split { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 48px; align-items: start; }
.facts { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; }
.facts h3 { font-family: var(--font-head); 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); box-shadow: 0 0 8px var(--brand); }

/* deflist */
.deflist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 40px; }
.deflist dt { font-family: var(--font-head); 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 solid var(--line-strong); border-radius: var(--radius); padding: 20px 22px; background: rgba(255, 255, 255, 0.02); color: var(--ink-soft); font-size: 14.5px; }

/* footer */
.site-footer { background: #090b0f; color: var(--muted); padding: 56px 0 28px; border-top: 1px solid var(--line); }
.site-footer .brand { color: var(--ink); }
.footer__top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 34px; }
.footer__brand p { margin-top: 12px; font-size: 14px; color: var(--muted); 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: var(--ink); margin-bottom: 12px; }
.footer__col ul { list-style: none; }
.footer__col li { padding: 4px 0; }
.footer__col a { color: var(--muted); font-size: 14px; text-decoration: none; }
.footer__col a:hover { color: var(--brand-ink); }
.footer__bottom { margin-top: 38px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-size: 13px; color: #6b7482; }

@media (max-width: 900px) {
  .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: 56px 0; }
  .hero { padding: 64px 0 56px; }
  .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; } }