:root{--bg:#f4f8f6;--card:#fffffff0;--ink:#12352c;--muted:#678077;--brand:#087f5b;--brand-dark:#056047;--line:#dce9e3;--danger:#b42318;--success:#087f5b}*{box-sizing:border-box}html,body{min-height:100%;margin:0;padding:0}body{background:radial-gradient(circle at top,#e7f5ef 0,var(--bg)42%,#eef5f2 100%);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;padding:18px 16px 30px}.container{width:min(100%,520px);margin:0 auto}.hero{padding:14px 4px 20px}.logo{letter-spacing:-.02em;align-items:center;gap:10px;font-weight:800;display:flex}.logo-mark{background:var(--brand);color:#fff;border-radius:14px;place-items:center;width:42px;height:42px;display:grid;box-shadow:0 10px 25px #087f5b33}.hero h1{letter-spacing:-.045em;margin:18px 0 8px;font-size:clamp(30px,8vw,44px);line-height:1.02}.hero p{color:var(--muted);margin:0;font-size:15px;line-height:1.6}.card{background:var(--card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid #dce9e3e6;border-radius:24px;padding:18px;box-shadow:0 18px 50px #16493b14}.amount-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin:14px 0;display:grid}.amount-btn{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:16px;padding:15px 12px;font-weight:750;transition:all .18s}.amount-btn:hover{border-color:#9dcabb;transform:translateY(-1px)}.amount-btn.active{color:var(--brand-dark);background:#e5f5ef;border-color:#6fbea6;box-shadow:inset 0 0 0 1px #087f5b1a}.label{color:#3e5b53;margin:16px 0 7px;font-size:13px;font-weight:700;display:block}.input,.textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:14px;outline:none;padding:13px 14px}.input:focus,.textarea:focus{border-color:#65b89e;box-shadow:0 0 0 4px #087f5b14}.textarea{resize:vertical;min-height:82px}.row{align-items:center;gap:10px;display:flex}.checkbox{width:18px;height:18px;accent-color:var(--brand)}.donate-btn{background:var(--brand);color:#fff;border:0;border-radius:16px;width:100%;margin-top:18px;padding:16px;font-weight:800;box-shadow:0 12px 28px #087f5b38}.donate-btn:hover{background:var(--brand-dark)}.donate-btn:disabled{opacity:.6;cursor:not-allowed}.notice{color:var(--muted);text-align:center;margin-top:12px;font-size:12px;line-height:1.5}.error{color:var(--danger);background:#fff2f0;border:1px solid #f5c7c2;border-radius:12px;margin-top:12px;padding:11px 13px;font-size:13px}.success{text-align:center;padding:14px 4px}.success-icon{width:62px;height:62px;color:var(--success);background:#e2f5ee;border-radius:50%;place-items:center;margin:0 auto 15px;font-size:28px;display:grid}.small{color:var(--muted);font-size:13px;line-height:1.55}.order-id{word-break:break-all;background:#f2f6f4;border-radius:10px;margin-top:12px;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.spinner{vertical-align:-4px;border:2px solid #ffffff73;border-top-color:#fff;border-radius:50%;width:18px;height:18px;margin-right:7px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}