:root { --ink: #1b2a49; --accent: #ff5b4a; --bg: #f7f3ec; --line: #e3ddd2; }
* { box-sizing: border-box; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; margin: 0; color: var(--ink); background: var(--bg); }
.topbar { background: var(--ink); color: #fff; padding: 12px 20px; font-size: 14px; }
.wrap { max-width: 900px; margin: 0 auto; padding: 24px 20px 60px; display: grid; grid-template-columns: 1fr; gap: 32px; }
@media (min-width: 760px) { .wrap { grid-template-columns: 1.4fr 1fr; } }
h1 { font-size: 22px; } h2 { font-size: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.card h3 { margin: 0 0 8px; font-size: 15px; }
.price { font-weight: 700; margin-bottom: 12px; }
button { background: var(--accent); color: #fff; border: 0; border-radius: 10px; padding: 9px 14px; cursor: pointer; font-size: 14px; }
button:disabled { opacity: .5; cursor: not-allowed; }
.checkout { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 20px; align-self: start; }
.checkout form { display: grid; gap: 12px; }
.checkout label { display: grid; gap: 4px; font-size: 13px; }
.checkout input[type=text], .checkout input:not([type]), .checkout input[type=email] { padding: 9px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }
.agree { flex-direction: row; display: flex; align-items: center; gap: 8px; }
.cart { border: 1px dashed var(--line); border-radius: 10px; padding: 12px; font-size: 14px; display: grid; gap: 6px; }
.cart-row { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.cart-row button { background: transparent; color: var(--ink); padding: 0 6px; }
.cart-total { font-weight: 700; margin-top: 6px; }
.result { margin-top: 16px; padding: 14px; border-radius: 10px; display: grid; gap: 10px; font-size: 14px; }
.result.ok { background: #eaf6ee; } .result.err { background: #fdecea; }
.paylink { color: var(--accent); font-weight: 700; }