:root {
    color-scheme: light;
    --ink: #1a2235;
    --muted: #68738a;
    --line: #e4e6f0;
    --brand: #654ff0;
    --brand2: #d9469a;
    --soft: #f6f5ff;
    --surface: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: linear-gradient(180deg, #fbfaff 0, #f4f6fb 100%);
    color: var(--ink);
    font-family: Inter, Arial, sans-serif;
}

.affiliate-header {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 18px 0;
}
.affiliate-brand { font-size: 1.08rem; font-weight: 850; color: var(--ink); text-decoration: none; }
.affiliate-header nav { display: flex; gap: 16px; margin-inline-start: auto; }
.affiliate-header a { color: var(--ink); text-decoration: none; font-weight: 650; }
.affiliate-header select {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    padding: .52rem .75rem;
    font: inherit;
}

main { width: min(1120px, calc(100% - 32px)); margin: 0 auto 50px; }
.eyebrow {
    display: block;
    color: var(--brand);
    font-size: .75rem;
    font-weight: 850;
    letter-spacing: .08em;
    text-transform: uppercase;
}
h2 { margin: .32rem 0 .85rem; font-size: clamp(1.15rem, 2vw, 1.42rem); line-height: 1.25; }
h3 { margin: 0 0 .42rem; font-size: 1rem; line-height: 1.35; }
.section-copy { max-width: 790px; }
.section-copy > p { margin: 0; color: var(--muted); line-height: 1.72; }

.affiliate-hero { text-align: center; padding: 42px 20px 28px; }
.affiliate-hero h1 {
    max-width: 760px;
    margin: .55rem auto .75rem;
    font-size: clamp(1.45rem, 2.8vw, 2rem);
    line-height: 1.15;
    letter-spacing: -.025em;
}
.affiliate-hero > p { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: 1rem; line-height: 1.72; }
.affiliate-highlights { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; max-width: 720px; margin: 24px auto 0; }
.affiliate-highlights article { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 15px; }
.affiliate-highlights strong, .affiliate-highlights span { display: block; }
.affiliate-highlights strong { font-size: 1.42rem; }
.affiliate-highlights span { margin-top: 4px; color: var(--muted); font-size: .82rem; }

.affiliate-explainer, .affiliate-promotion, .affiliate-card, .affiliate-terms {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 21px;
    padding: 24px;
    box-shadow: 0 16px 38px rgba(42, 37, 81, .055);
}
.affiliate-explainer { margin-bottom: 18px; }
.explain-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 11px; margin-top: 18px; }
.explain-grid article, .promotion-steps article, .sample-grid article, .terms-list article {
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #f8f9fc;
}
.explain-grid p, .promotion-steps p, .sample-grid p, .terms-list p { margin: 0; color: var(--muted); font-size: .88rem; line-height: 1.64; }

.affiliate-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 18px; align-items: start; }
.affiliate-card ol { padding: 0; list-style: none; counter-reset: steps; }
.affiliate-card li { counter-increment: steps; display: grid; grid-template-columns: 40px 1fr; gap: 3px 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.affiliate-card li::before { content: counter(steps); grid-row: 1/3; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: var(--soft); color: var(--brand); font-weight: 850; }
.affiliate-card li b, .affiliate-card li span { grid-column: 2; }
.affiliate-card li span { color: var(--muted); line-height: 1.55; }

form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: grid; gap: 7px; font-size: .87rem; font-weight: 750; }
input, select, button { font: inherit; }
input, form select { width: 100%; height: 46px; border: 1px solid #ccd1df; border-radius: 12px; background: #fff; padding: 0 12px; color: var(--ink); }
input:focus, select:focus { outline: 3px solid rgba(101, 79, 240, .14); border-color: var(--brand); }
.terms-check { grid-column: 1/-1; display: flex; align-items: flex-start; gap: 9px; font-weight: 500; color: var(--muted); line-height: 1.5; }
.terms-check input { width: 18px; height: 18px; margin-top: 2px; flex: 0 0 auto; }
.terms-check a { color: var(--brand); font-weight: 750; }
.form-card form > button { grid-column: 1/-1; border: 0; border-radius: 13px; padding: .85rem 1rem; background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; font-weight: 850; cursor: pointer; }
.form-card form > button:disabled { opacity: .6; cursor: wait; }
.honeypot { position: absolute !important; left: -10000px !important; }
.form-message { grid-column: 1/-1; min-height: 1.3em; margin: 0; color: var(--muted); }
.form-message.error { color: #b42318; }
.affiliate-result { margin-top: 18px; padding: 18px; border-radius: 16px; background: #f1efff; border: 1px solid #d9d4ff; }
.affiliate-result > strong { display: block; margin-bottom: 10px; }
.affiliate-result > div { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.affiliate-result button { border: 0; border-radius: 11px; padding: 0 16px; background: var(--brand); color: #fff; font-weight: 800; }
.affiliate-result p { margin: .8rem 0 0; color: var(--muted); font-size: .84rem; line-height: 1.55; }

.affiliate-promotion, .affiliate-terms { margin-top: 18px; scroll-margin-top: 20px; }
.promotion-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 11px; margin-top: 18px; }
.promotion-steps article { position: relative; padding-top: 43px; }
.promotion-steps article > span { position: absolute; inset-block-start: 13px; inset-inline-start: 15px; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 8px; background: var(--soft); color: var(--brand); font-size: .78rem; font-weight: 850; }
.promotion-samples { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.sample-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 11px; }
.sample-grid b { display: block; margin-bottom: 6px; font-size: .9rem; }

.terms-list { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; margin-top: 18px; }
.terms-list article { background: #fff; }
.terms-footer { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 17px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }
.terms-footer p { margin: 0; }
.terms-footer a { color: var(--brand); }

footer { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 20px 0 35px; display: flex; gap: 18px; color: var(--muted); border-top: 1px solid var(--line); }
footer span { font-weight: 850; color: var(--ink); margin-inline-end: auto; }
footer a { color: inherit; text-decoration: none; }

@media (max-width: 920px) {
    .explain-grid, .promotion-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
    .affiliate-grid { grid-template-columns: 1fr; }
    .affiliate-hero { padding-top: 30px; }
    .affiliate-header nav { display: none; }
}
@media (max-width: 620px) {
    .affiliate-highlights, .explain-grid, .promotion-steps, .sample-grid, .terms-list { grid-template-columns: 1fr; }
    .affiliate-header { gap: 10px; }
    .affiliate-header select { margin-inline-start: auto; }
    form { grid-template-columns: 1fr; }
    label, .terms-check, .form-card form > button, .form-message { grid-column: 1; }
    .affiliate-explainer, .affiliate-promotion, .affiliate-card, .affiliate-terms { padding: 18px; border-radius: 17px; }
    .affiliate-hero h1 { font-size: 1.5rem; }
    .affiliate-result > div { grid-template-columns: 1fr; }
    .affiliate-result button { min-height: 42px; }
}