:root {
  color-scheme: dark;
  --ink: #f5f7ff;
  --muted: #aab3c8;
  --night: #05070d;
  --night-2: #0a0f1c;
  --panel: rgba(15, 21, 36, 0.82);
  --line: rgba(255, 255, 255, 0.12);
  --blue: #64b5ff;
  --cyan: #79f2dd;
  --violet: #a985ff;
  --danger: #ffca79;
  --radius: 1.35rem;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 6%, rgba(90, 120, 255, 0.18), transparent 27rem),
    radial-gradient(circle at 4% 33%, rgba(56, 222, 202, 0.09), transparent 26rem),
    var(--night);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
.wrap { width: min(1160px, calc(100% - 2rem)); margin-inline: auto; }
.skip-link { position: fixed; left: 1rem; top: -4rem; padding: .75rem 1rem; background: white; color: #000; z-index: 100; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  background: rgba(5, 7, 13, .82);
  backdrop-filter: blur(18px);
}
.nav { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; text-decoration: none; font-size: 1.12rem; font-weight: 760; letter-spacing: -.02em; white-space: nowrap; }
.brand-mark { width: 2rem; height: 2rem; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: linear-gradient(145deg, rgba(121, 242, 221, .16), rgba(100, 181, 255, .12)); }
.brand-mark::after { content: ""; width: 1rem; height: .45rem; border-radius: 50%; border-top: 2px solid var(--cyan); transform: rotate(-18deg); }
.nav-links { display: flex; gap: 1.35rem; align-items: center; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .94rem; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); }

.hero { min-height: 44rem; position: relative; display: grid; align-items: center; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before {
  content: "";
  position: absolute;
  width: 48rem;
  height: 48rem;
  right: -22rem;
  top: 2rem;
  border: 1px solid rgba(121, 242, 221, .18);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(100, 181, 255, .018), 0 0 0 11rem rgba(169, 133, 255, .014);
}
.hero::after { content: ""; position: absolute; right: 8%; top: 24%; width: .55rem; height: .55rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 1.4rem var(--cyan); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(2rem, 7vw, 6rem); align-items: center; padding: 6rem 0 5rem; }
.eyebrow { display: inline-flex; align-items: center; gap: .55rem; margin: 0 0 1rem; color: var(--cyan); font-size: .82rem; font-weight: 780; letter-spacing: .11em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 1.7rem; height: 1px; background: currentColor; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.045em; }
h1 { max-width: 14ch; font-size: clamp(2.7rem, 7vw, 5.7rem); margin-bottom: 1.4rem; }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); margin-bottom: 1.15rem; }
h3 { font-size: 1.3rem; letter-spacing: -.025em; }
.lead { max-width: 46rem; color: #c6cede; font-size: clamp(1.08rem, 2vw, 1.3rem); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .85rem; margin: 2rem 0 1rem; }
.button { display: inline-flex; min-height: 3.25rem; align-items: center; justify-content: center; gap: .6rem; padding: .8rem 1.15rem; border: 1px solid transparent; border-radius: .85rem; background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #061016; font-weight: 800; text-decoration: none; box-shadow: 0 10px 34px rgba(100, 181, 255, .18); transition: transform .18s ease, opacity .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.is-disabled { background: rgba(255, 255, 255, .08); border-color: var(--line); color: #dce3f2; box-shadow: none; cursor: default; }
.button.secondary { color: var(--ink); background: transparent; border-color: var(--line); box-shadow: none; }
.button.secondary:hover { background: rgba(255, 255, 255, .05); }
.referral-status { margin: 0; color: var(--muted); font-size: .9rem; }
.referral-status::before { content: ""; display: inline-block; width: .5rem; height: .5rem; border-radius: 50%; margin-right: .5rem; background: var(--danger); box-shadow: 0 0 .8rem rgba(255, 202, 121, .45); }
.referral-status[data-active="true"]::before { background: var(--cyan); }

.reward-card { position: relative; padding: 1.35rem; border: 1px solid var(--line); border-radius: calc(var(--radius) + .4rem); background: linear-gradient(160deg, rgba(20, 29, 48, .94), rgba(9, 13, 24, .88)); box-shadow: var(--shadow); }
.reward-card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(130deg, rgba(121, 242, 221, .11), transparent 42%); pointer-events: none; }
.reward-label { color: var(--muted); font-size: .83rem; text-transform: uppercase; letter-spacing: .08em; }
.reward-main { margin: .6rem 0 1.1rem; font-size: clamp(2.2rem, 5vw, 3.7rem); line-height: 1; font-weight: 840; letter-spacing: -.06em; }
.reward-main span { display: block; margin-top: .55rem; color: var(--cyan); font-size: 1rem; letter-spacing: 0; }
.reward-steps { display: grid; gap: .65rem; padding: 0; margin: 0; list-style: none; }
.reward-steps li { display: grid; grid-template-columns: 1.7rem 1fr; gap: .65rem; align-items: start; color: #c7d0df; }
.reward-steps b { display: grid; place-items: center; width: 1.55rem; height: 1.55rem; border-radius: 50%; border: 1px solid rgba(121, 242, 221, .3); color: var(--cyan); font-size: .75rem; }

.section { padding: clamp(4rem, 9vw, 7.5rem) 0; }
.section.alt { background: linear-gradient(180deg, rgba(14, 19, 32, .64), rgba(5, 7, 13, .3)); border-block: 1px solid rgba(255, 255, 255, .07); }
.section-head { display: grid; grid-template-columns: 1fr .8fr; gap: 2rem; align-items: end; margin-bottom: 2.3rem; }
.section-head p { margin: 0; color: var(--muted); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { padding: 1.35rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.card-num { color: var(--cyan); font-size: .78rem; font-weight: 800; letter-spacing: .1em; }
.card p, .fine { color: var(--muted); }
.notice { display: grid; grid-template-columns: auto 1fr; gap: .9rem; margin-top: 1rem; padding: 1rem 1.1rem; border: 1px solid rgba(255, 202, 121, .22); border-radius: 1rem; background: rgba(255, 202, 121, .06); color: #d9dfeb; }
.notice strong { color: var(--danger); }

.truth-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1rem; }
.truth-list { display: grid; gap: .8rem; margin: 0; padding: 0; list-style: none; }
.truth-list li { padding: 1rem 1rem 1rem 3rem; position: relative; border: 1px solid var(--line); border-radius: 1rem; background: rgba(255,255,255,.025); }
.truth-list li::before { content: "✓"; position: absolute; left: 1rem; top: 1rem; color: var(--cyan); font-weight: 900; }
.unknown { padding: 1.4rem; border-radius: var(--radius); border: 1px dashed rgba(255,255,255,.2); }
.unknown h3 { color: var(--danger); }
.unknown ul { padding-left: 1.2rem; color: var(--muted); }

.compare { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
.compare th, .compare td { padding: 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.compare th { color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .07em; }
.compare tr:last-child td { border-bottom: 0; }
.compare td:first-child { font-weight: 760; color: var(--ink); }
.compare td { color: #c2cbdb; }
.tag { display: inline-flex; min-width: 5rem; justify-content: center; padding: .2rem .55rem; border-radius: 2rem; background: rgba(121, 242, 221, .1); color: var(--cyan); font-size: .78rem; font-weight: 700; white-space: nowrap; }
.table-scroll { overflow-x: auto; border-radius: var(--radius); }

.compare th:first-child, .compare td:first-child { width: 7rem; text-align: center; }
.compare td:last-child { white-space: nowrap; }

.faq { display: grid; gap: .75rem; max-width: 56rem; }
details { border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); }
summary { cursor: pointer; list-style: none; padding: 1.1rem 3.2rem 1.1rem 1.2rem; position: relative; font-weight: 740; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 1.2rem; top: 50%; transform: translateY(-50%); display: grid; place-items: center; width: 1.5rem; height: 1.5rem; color: var(--cyan); font-size: 1.5rem; line-height: 1; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 1.2rem 1.2rem; color: var(--muted); }

.sources { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.source { display: block; padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; text-decoration: none; background: rgba(255,255,255,.025); }
.source:hover { border-color: rgba(121,242,221,.4); }
.source span { display: block; color: var(--muted); font-size: .85rem; }

.closing { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; padding: 2rem; border-radius: calc(var(--radius) + .35rem); border: 1px solid rgba(121,242,221,.24); background: linear-gradient(120deg, rgba(121,242,221,.1), rgba(100,181,255,.07)); }
.closing h2 { margin-bottom: .55rem; }
.closing p { color: var(--muted); margin: 0; }

.article-hero { padding: clamp(5rem, 10vw, 8rem) 0 3rem; border-bottom: 1px solid var(--line); }
.article-hero h1 { max-width: 17ch; font-size: clamp(2.6rem, 6vw, 5rem); }
.article-intro { max-width: 48rem; color: #c6cede; font-size: clamp(1.08rem, 2vw, 1.28rem); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 18rem; gap: clamp(2rem, 7vw, 5rem); align-items: start; }
.article-copy { max-width: 48rem; }
.article-copy h2 { margin-top: 3.2rem; font-size: clamp(1.7rem, 3vw, 2.35rem); }
.article-copy h2:first-child { margin-top: 0; }
.article-copy p, .article-copy li { color: #c2cbdb; }
.article-copy a { color: var(--cyan); }
.article-number { display: inline-grid; place-items: center; width: 2rem; height: 2rem; margin-right: .55rem; border: 1px solid rgba(121,242,221,.3); border-radius: 50%; color: var(--cyan); font-size: .85rem; vertical-align: .25rem; }
.article-aside { position: sticky; top: 6rem; padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.article-aside h2 { font-size: 1.25rem; }
.article-aside ul { display: grid; gap: .6rem; padding-left: 1.2rem; color: var(--muted); }
.breadcrumb { margin-bottom: 1.4rem; color: var(--muted); font-size: .9rem; }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--ink); }
.inline-cta { margin-top: 3rem; padding: 1.35rem; border: 1px solid rgba(121,242,221,.24); border-radius: var(--radius); background: linear-gradient(120deg, rgba(121,242,221,.1), rgba(100,181,255,.07)); }
.inline-cta p { color: var(--muted); }

footer { padding: 2.5rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 1rem; }

@media (max-width: 820px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { min-height: auto; }
  .hero-grid, .section-head, .truth-grid, .closing { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .article-aside { position: static; }
  .hero-grid { padding: 4.5rem 0; gap: 3rem; }
  .grid-3 { grid-template-columns: 1fr; }
  .sources { grid-template-columns: 1fr; }
  .closing .button { width: 100%; }
}

@media (max-width: 560px) {
  .wrap { width: min(100% - 1.25rem, 1160px); }
  .brand { font-size: 1rem; gap: .5rem; }
  .brand-mark { width: 1.85rem; height: 1.85rem; }
  .site-header .button { min-height: 2.6rem; padding: .55rem .72rem; font-size: .82rem; }
  h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .reward-card { padding: 1.1rem; }
  .section { padding: 4.2rem 0; }
  .compare { min-width: 58rem; }
  .footer-grid { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}