.buy-page { min-height: 100vh; color: var(--cream); background: var(--ink); }
.buy-shell { min-height: 100vh; overflow: hidden; background: var(--ink); }
.buy-header { display: flex; align-items: center; justify-content: space-between; min-height: 84px; padding: 18px clamp(22px, 6vw, 96px); border-bottom: 1px solid rgba(244,241,235,.15); }
.buy-header .brand { color: var(--cream); }
.buy-header .brand__mark { color: var(--lime); }
.buy-header .brand__descriptor { color: rgba(244,241,235,.55); }
.buy-back { color: rgba(244,241,235,.7); font-size: 12px; transition: color .2s ease; }
.buy-back:hover { color: var(--lime); }
.buy-main { padding: clamp(58px, 8vw, 106px) clamp(22px, 6vw, 96px) 90px; }
.buy-intro { position: relative; max-width: 760px; margin-bottom: clamp(45px, 7vw, 84px); }
.buy-intro::after { position: absolute; top: -60px; right: -2vw; width: clamp(180px, 22vw, 320px); height: clamp(180px, 22vw, 320px); border: 1px solid rgba(202,255,93,.35); border-radius: 50%; content: ""; pointer-events: none; }
.buy-intro::before { position: absolute; top: -18px; right: 6vw; width: clamp(92px, 11vw, 160px); height: clamp(92px, 11vw, 160px); border-radius: 50%; content: ""; background: var(--orange); opacity: .92; }
.buy-intro h1 { position: relative; z-index: 1; margin: 24px 0 22px; font-size: clamp(50px, 8vw, 105px); line-height: .9; }
.buy-intro h1 em { color: var(--lime); font-style: normal; }
.buy-intro p { position: relative; z-index: 1; max-width: 485px; margin-bottom: 22px; color: rgba(244,241,235,.66); font-size: 15px; line-height: 1.65; }
.buy-intro__domain { position: relative; z-index: 1; color: rgba(244,241,235,.42); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.buy-intro__domain span { padding: 0 8px; color: var(--orange); }
.buy-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(260px, .64fr); align-items: start; gap: clamp(24px, 5vw, 80px); max-width: 1180px; }
.buy-card { padding: clamp(24px, 4vw, 52px); color: var(--ink); background: var(--paper); box-shadow: 0 28px 70px rgba(0,0,0,.18); }
.buy-card__top { display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid var(--line); color: var(--orange-dark); font-size: 9px; font-weight: 700; letter-spacing: .14em; }
.buy-card__top--tip { border-bottom: 0; padding-bottom: 7px; }
.amount-label { display: block; margin: 31px 0 9px; font-family: var(--display); font-size: 20px; font-weight: 600; letter-spacing: -.04em; }
.amount-input-wrap, .tip-input-wrap { display: flex; align-items: center; gap: 12px; border-bottom: 2px solid var(--ink); }
.amount-input-wrap:focus-within, .tip-input-wrap:focus-within { border-color: var(--orange); }
.amount-input-wrap input { width: 100%; min-width: 0; padding: 5px 0 7px; color: var(--ink); border: 0; outline: 0; background: transparent; font-family: var(--display); font-size: clamp(42px, 6vw, 68px); font-weight: 600; letter-spacing: -.08em; }
.amount-input-wrap span, .tip-input-wrap span { padding-bottom: 7px; color: var(--ink-soft); font-size: 12px; font-weight: 700; white-space: nowrap; }
.amount-input-wrap input::placeholder { color: #b6bfc1; }
.amount-input-wrap input::-webkit-outer-spin-button, .amount-input-wrap input::-webkit-inner-spin-button, .tip-input-wrap input::-webkit-outer-spin-button, .tip-input-wrap input::-webkit-inner-spin-button { margin: 0; -webkit-appearance: none; }
.amount-input-wrap input[type=number], .tip-input-wrap input[type=number] { -moz-appearance: textfield; }
.input-error { margin: 7px 0 0; color: #c64228; font-size: 10px; }
.quick-amounts { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.quick-amounts button, .tip-options button { padding: 8px 12px; border: 1px solid var(--line); border-radius: 30px; color: var(--ink-soft); background: transparent; font-size: 10px; transition: border-color .2s, background .2s, color .2s; }
.quick-amounts button:hover, .tip-options button:hover, .tip-options button.is-active { color: var(--ink); border-color: var(--ink); background: var(--lime); }
.buy-divider { height: 1px; margin: 31px 0 24px; background: var(--line); }
.tip-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.tip-heading h2 { margin: 0 0 3px; font-size: 26px; line-height: 1; }
.tip-heading p { margin: 0; color: var(--ink-soft); font-size: 11px; }
.tip-spark { display: grid; width: 35px; height: 35px; flex: 0 0 auto; place-items: center; border-radius: 50%; color: var(--ink); background: var(--orange); font-size: 18px; }
.tip-options { display: flex; flex-wrap: wrap; gap: 7px; margin: 17px 0 15px; }
.tip-input-label { display: block; margin-bottom: 6px; color: var(--ink-soft); font-size: 10px; font-weight: 700; }
.tip-input-wrap { max-width: 220px; border-width: 1px; }
.tip-input-wrap input { width: 100%; min-width: 0; padding: 8px 0; color: var(--ink); border: 0; outline: 0; background: transparent; font-size: 14px; }
.tip-input-wrap span { padding-bottom: 0; font-size: 10px; }
.buy-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; margin-top: 22px; }
.buy-field { display: grid; gap: 7px; }
.buy-field--wide { grid-column: 1 / -1; }
.buy-field > span { color: var(--ink-soft); font-size: 10px; font-weight: 700; }
.buy-field input { width: 100%; height: 45px; padding: 0 12px; border: 1px solid var(--line); border-radius: 2px; outline: 0; color: var(--ink); background: var(--cream); font-size: 12px; }
.buy-field input:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255,112,67,.12); }
.buy-consent { display: flex; align-items: flex-start; gap: 8px; margin: 18px 0 23px; color: var(--ink-soft); font-size: 10px; line-height: 1.35; }
.buy-consent input { margin-top: 1px; accent-color: var(--orange); }
.buy-total { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 14px; }
.buy-total span { color: var(--ink-soft); font-size: 11px; }
.buy-total strong { font-family: var(--display); font-size: clamp(24px, 4vw, 34px); line-height: 1; letter-spacing: -.06em; }
.buy-submit { min-height: 56px; color: var(--ink); }
.buy-submit:disabled { cursor: wait; opacity: .6; }
.buy-card__hint { display: block; margin-top: 12px; color: var(--ink-soft); font-size: 9px; line-height: 1.4; text-align: center; }
.buy-aside { display: grid; gap: 14px; }
.aside-card { padding: 26px; }
.aside-card--dark { color: var(--cream); background: #122d46; }
.aside-card--lime { color: var(--ink); background: var(--lime); }
.aside-card__label { color: rgba(244,241,235,.55); font-size: 9px; font-weight: 700; letter-spacing: .15em; }
.buy-steps { display: grid; gap: 23px; padding: 27px 0 0; margin: 0; list-style: none; }
.buy-steps li { display: grid; grid-template-columns: 28px 1fr; gap: 11px; align-items: start; }
.buy-steps li > span { color: var(--lime); font-family: var(--display); font-size: 11px; }
.buy-steps strong, .buy-steps small { display: block; }
.buy-steps strong { margin-bottom: 3px; font-family: var(--display); font-size: 15px; line-height: 1.05; }
.buy-steps small { color: rgba(244,241,235,.58); font-size: 10px; line-height: 1.4; }
.aside-card__icon { display: grid; width: 36px; height: 36px; margin-bottom: 24px; place-items: center; border-radius: 50%; color: var(--cream); background: var(--ink); font-size: 17px; }
.aside-card--lime strong { display: block; font-family: var(--display); font-size: 23px; line-height: .98; letter-spacing: -.05em; }
.aside-card--lime p { max-width: 220px; margin: 15px 0 0; color: rgba(11,31,51,.68); font-size: 11px; line-height: 1.45; }
.aside-link { color: rgba(244,241,235,.65); font-size: 11px; transition: color .2s; }
.aside-link:hover { color: var(--lime); }
.buy-result { max-width: 650px; margin: 0 auto; padding: 52px; color: var(--ink); background: var(--paper); text-align: center; }
.buy-result .payment-result__icon { display: grid; width: 70px; height: 70px; margin: 0 auto 20px; place-items: center; border-radius: 50%; background: var(--lime); font-size: 30px; }
.buy-result h2 { margin: 13px 0 8px; font-size: 40px; }
.buy-result p { max-width: 460px; margin: 0 auto 14px; color: var(--ink-soft); font-size: 13px; }
.buy-result code { display: block; margin: 0 auto 24px; padding: 9px; color: var(--ink-soft); background: var(--cream); font-size: 10px; word-break: break-all; }
.buy-footer { display: flex; justify-content: space-between; gap: 20px; padding: 24px clamp(22px, 6vw, 96px); border-top: 1px solid rgba(244,241,235,.15); color: rgba(244,241,235,.44); font-size: 10px; }
.buy-footer a:hover { color: var(--lime); }
.buy-page .toast { background: var(--cream); color: var(--ink); }

@media (max-width: 820px) {
  .buy-layout { grid-template-columns: 1fr; max-width: 650px; }
  .buy-aside { grid-template-columns: 1fr 1fr; }
  .aside-link { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .buy-header { min-height: 72px; padding-top: 14px; padding-bottom: 14px; }
  .buy-header .brand__descriptor { display: none; }
  .buy-back { font-size: 10px; }
  .buy-main { padding-top: 46px; padding-bottom: 60px; }
  .buy-intro { margin-bottom: 42px; }
  .buy-intro::after { top: -33px; right: -52px; width: 180px; height: 180px; }
  .buy-intro::before { top: 17px; right: 16px; width: 64px; height: 64px; }
  .buy-intro h1 { font-size: clamp(48px, 15vw, 70px); }
  .buy-intro p { max-width: 320px; font-size: 13px; }
  .buy-card { padding: 23px 18px; }
  .amount-input-wrap input { font-size: 49px; }
  .quick-amounts button, .tip-options button { padding: 8px 10px; font-size: 9px; }
  .buy-fields { grid-template-columns: 1fr; }
  .buy-field--wide { grid-column: auto; }
  .buy-aside { grid-template-columns: 1fr; }
  .aside-link { grid-column: auto; }
  .buy-result { padding: 38px 20px; }
  .buy-footer { flex-direction: column; gap: 8px; }
}