:root{color-scheme:light;--navy:#071d35;--blue:#0b5cab;--cyan:#12a8d8;--line:#dbe5ef;--muted:#617286;--bg:#eef4f8}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top,#fff 0,var(--bg) 55%);color:var(--navy);font-family:Inter,Segoe UI,Arial,sans-serif}
.shell{min-height:100vh;display:grid;place-items:center;padding:24px}.card{width:min(100%,560px);background:#fff;border:1px solid rgba(8,40,70,.08);border-radius:24px;padding:34px;box-shadow:0 24px 70px rgba(7,29,53,.14)}
header{display:flex;justify-content:space-between;align-items:center}.brand{font-weight:900;letter-spacing:.13em;color:var(--blue)}.uat{display:inline-block;background:#fff4d6;color:#7b5700;border-radius:999px;padding:7px 11px;font-size:.75rem;font-weight:800;text-transform:uppercase}
h1{font-size:clamp(1.8rem,5vw,2.5rem);line-height:1.1;margin:26px 0 10px}.muted,p{color:var(--muted);line-height:1.6}
dl{border:1px solid var(--line);border-radius:16px;overflow:hidden;margin:28px 0}dl div{display:flex;justify-content:space-between;gap:20px;padding:15px 18px;border-bottom:1px solid var(--line)}dl div:last-child{border:0}dt{color:var(--muted)}dd{margin:0;font-weight:750;text-align:right}.total{background:#f3f8fc}.total dd{font-size:1.35rem;color:var(--blue)}
label{display:block;font-weight:800;margin-bottom:8px}select,button{width:100%;border-radius:12px;padding:14px 16px;font:inherit}select{border:1px solid #b9c9d8;background:#fff}button{margin-top:18px;border:0;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:850;cursor:pointer;box-shadow:0 8px 20px rgba(11,92,171,.22)}
.secure{margin-top:22px;padding:13px;border-radius:12px;background:#eef9f7;color:#176256;font-size:.87rem}.center{text-align:center}.status{display:inline-block;margin-top:24px;border-radius:999px;padding:8px 12px;background:#eaf0f5;font-weight:850}.status.successful{background:#dff7ec;color:#08704a}.status.failed,.status.cancelled{background:#ffebe9;color:#a42b20}.status.pending{background:#fff4d6;color:#7b5700}
@media(max-width:560px){.card{padding:24px;border-radius:18px}header{align-items:flex-start;gap:12px}dl div{display:block}dd{text-align:left;margin-top:5px}}
.simulator{--sim:#9b2c11;--sim-dark:#45150b;background:linear-gradient(145deg,#fff8ed,#f5e3ce);color:#2d1c16}.sim-shell{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:42px 0}.sim-header{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.sim-badge{display:inline-block;padding:8px 12px;border-radius:8px;background:#fff0c7;color:#7d360d;border:1px solid #e7b45b;font-size:.76rem;font-weight:900;letter-spacing:.06em}.sim-panel,.sim-card{background:#fffdf9;border:1px solid #ead4bd;box-shadow:0 24px 60px rgba(69,21,11,.12)}.sim-panel{margin-top:24px;padding:28px;border-radius:18px}.sim-card .brand{margin-top:18px;color:var(--sim)}.sim-table{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:13px 12px;border-bottom:1px solid #eadfd4;text-align:left}th{font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;color:#775b4d}.simulator input{width:100%;margin:0 0 16px;border:1px solid #cdb8a7;border-radius:12px;padding:13px 14px;font:inherit}.simulator button{background:linear-gradient(135deg,var(--sim-dark),var(--sim))}.simulator button.secondary{background:#eee3d9;color:#582618;box-shadow:none}.sim-link{display:inline-block;margin-top:20px;color:var(--sim);font-weight:800}.mono{font-family:ui-monospace,Consolas,monospace;word-break:break-all}