:root{--brand: #111827;--bg: #f4f5f7;--card: #ffffff;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--error: #b91c1c;--success: #047857;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0}h1,h2{margin:0 0 .5rem}h1{font-size:1.5rem}h2{font-size:1.05rem}.page{min-height:100vh;display:flex;flex-direction:column}.test-banner{background:#fef3c7;color:#92400e;text-align:center;font-size:.8rem;font-weight:600;letter-spacing:.04em;padding:.4rem}.checkout{width:100%;max-width:460px;margin:0 auto;padding:1.5rem 1rem 2rem;flex:1}.shop{width:100%;max-width:1000px;margin:0 auto;padding:1.5rem 1rem 2rem}.stack{display:flex;flex-direction:column;gap:1rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.25rem}.merchant{text-align:center;margin-bottom:1.25rem}.merchant img{max-height:44px;max-width:180px}.amount{font-size:2rem;font-weight:700;margin-top:.5rem}.muted{color:var(--muted)}.small{font-size:.8rem}.center{text-align:center}label{display:flex;flex-direction:column;gap:.3rem;font-size:.85rem;color:var(--muted);margin-bottom:.75rem}input,select{font:inherit;color:var(--text);padding:.65rem .75rem;border:1px solid var(--border);border-radius:8px;background:#fff}input:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}input[type=range]{padding:0;border:none;accent-color:var(--brand);width:100%}.row{display:flex;gap:.75rem}.row>*{flex:1}button{font:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}.primary{background:var(--brand);color:#fff;border:none;border-radius:8px;padding:.85rem 1rem;font-weight:600;text-align:center;text-decoration:none;display:block;width:100%}.as-link{margin-top:.75rem}.ghost{background:transparent;border:1px solid var(--border);border-radius:8px;padding:.45rem .75rem;color:var(--text)}.link{color:var(--muted);font-size:.85rem;display:block}.token-row{border-top:1px solid var(--border);padding-top:.75rem;margin-top:.75rem}.token-head{display:flex;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.5rem}.token-value{text-align:right;font-weight:600}.summary-row{display:flex;justify-content:space-between;padding:.25rem 0}.summary-row.strong{font-weight:700;border-top:1px solid var(--border);margin-top:.4rem;padding-top:.6rem}.error-text{color:var(--error);margin:0}.notice.success h2{color:var(--success)}.notice.error h2{color:var(--error)}.test-notice{background:#fef3c7;color:#92400e;border-radius:8px;padding:.6rem .75rem;font-size:.85rem}.code-input{font-size:1.6rem;letter-spacing:.5em;text-align:center}.test-cards summary{cursor:pointer;font-size:.85rem;color:var(--muted)}.test-card{display:flex;justify-content:space-between;gap:.5rem;width:100%;background:none;border:none;border-bottom:1px dashed var(--border);padding:.5rem 0;font-size:.8rem;text-align:left}.breakdown{margin:.75rem 0}.footer{text-align:center;color:var(--muted);font-size:.8rem;padding:1rem}.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:1.4em;height:1.4em;border-radius:.35em;background:#111827;color:#fff;font-weight:700;font-size:.9em}.shop-header{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}.customer-select{min-width:280px;margin:0}.products{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.product .price{font-size:1.4rem;font-weight:700;margin:.75rem 0}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
