.checkout { padding: clamp(24px, 4vw, 48px) 0 80px; }
.checkout .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
.co-form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { color: var(--brand-ink-soft); font-size: 14px; font-weight: 600; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; color: var(--brand-ink); background: var(--brand-surface);
  border: 1px solid var(--brand-line); border-radius: 12px; font: inherit;
}
.field input:focus, .field textarea:focus { border-color: transparent; outline: 2px solid var(--brand-primary); }
/* Ручка ресайза позволяла растянуть textarea шире колонки и ломала сетку страницы */
.field textarea { resize: none; }
.co-summary { position: sticky; top: 88px; padding: clamp(20px, 3vw, 28px); background: var(--brand-surface); border: 1px solid var(--brand-line); border-radius: var(--radius); }
.co-summary h3 { margin-bottom: 8px; font: 500 20px/1.2 var(--font-display); }
.co-line { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--brand-line); font-size: 15px; }
.co-line:last-of-type { border: none; }
.co-sum { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 12px; color: var(--brand-ink-soft); font-size: 14px; }
.co-sum b { font-variant-numeric: tabular-nums; }
.co-sum--discount { color: var(--brand-accent-strong); }
.co-total { display: flex; align-items: baseline; justify-content: space-between; margin-top: 10px; padding-top: 12px; border-top: 1px solid var(--brand-line); }
.co-total b { font: 500 26px/1.2 var(--font-display); font-variant-numeric: tabular-nums; }

/* Промокод: свёрнут по умолчанию, чтобы не отвлекать от состава заказа */
.co-promo-toggle {
  margin-top: 14px; padding: 0; color: var(--brand-primary-deep); background: none; border: 0;
  font: 600 14px/1 var(--font-sans); text-decoration: underline; text-underline-offset: 4px; cursor: pointer;
}
.co-promo-toggle:hover { color: var(--brand-ink); }
.co-promo { margin-top: 14px; }
.co-promo__label { display: block; margin-bottom: 6px; color: var(--brand-ink-soft); font-size: 14px; font-weight: 600; }
.co-promo__row { display: flex; gap: 8px; }
.co-promo__row input {
  flex: 1; min-width: 0; padding: 12px 14px; color: var(--brand-ink); background: var(--brand-paper);
  border: 1px solid var(--brand-line); border-radius: 12px; font: inherit; text-transform: uppercase;
}
.co-promo__row input:focus { border-color: transparent; outline: 2px solid var(--brand-primary); }
.co-promo__row input::placeholder { color: var(--brand-muted); opacity: .38; }
.co-promo__row .btn { flex: none; }
.co-promo__msg:empty { display: none; }
.co-promo__msg { margin-top: 10px; font-size: 13px; line-height: 1.5; }
.co-promo__msg--ok { color: var(--brand-primary-deep); }
.co-promo__msg--error { color: var(--brand-accent-strong); }
.co-promo__hint { margin-top: 10px; color: var(--brand-muted); font-size: 12px; line-height: 1.5; }
.co-promo__hint code { padding: 1px 5px; background: var(--brand-paper); border: 1px solid var(--brand-line); border-radius: 5px; font-size: 11px; }
.co-big-demo {
  padding: 16px 18px; color: var(--brand-accent-strong);
  background: color-mix(in oklch, var(--brand-accent) 14%, var(--brand-bg));
  border: 1px solid color-mix(in oklch, var(--brand-accent) 40%, var(--brand-bg)); border-radius: 14px;
  font-size: 14.5px; line-height: 1.5;
}
.co-done { padding: 20px 8px; animation: co-done-in .35s ease both; text-align: center; }
/* Не зелёная галочка: заказ не создан, и значок не должен читаться как успех */
.co-done__ico { width: 56px; height: 56px; margin: 0 auto 14px; padding: 12px; color: #fff; background: var(--brand-accent); border-radius: 999px; }
.co-done h3 { font: 500 26px/1.2 var(--font-display); }
.co-done p { max-width: 44ch; margin: 12px auto 22px; color: var(--brand-ink-soft); font-size: 15px; }
.checkout-heading { margin-bottom: 22px; }
.checkout-heading h2 { font-size: clamp(28px, 4vw, 42px); }
.checkout-note { font-size: 13px; text-align: center; }
.checkout-empty { margin: 16px 0; }
.space-top-10 { margin-top: 10px; }
.space-top-18 { margin-top: 18px; }

@keyframes co-done-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (max-width: 860px) { .checkout .wrap { grid-template-columns: 1fr; } .co-summary { position: static; } }
@media (prefers-reduced-motion: reduce) { .co-done { animation: none; } }