.rpgt-calculator { margin: 2rem 0; padding: 1.5rem; border: 1px solid #d9e2ec; border-radius: 0.75rem; background: #ffffff; }
.rpgt-calculator h2 { margin-top: 0; }
.rpgt-note, .rpgt-disclaimer { color: #475569; font-size: 0.95rem; }
.rpgt-form { display: grid; gap: 0.75rem; }
.rpgt-form label { display: flex; flex-direction: column; gap: 0.25rem; font-weight: 600; }
.rpgt-form input, .rpgt-form select { padding: 0.5rem; border: 1px solid #cbd5e1; border-radius: 0.375rem; }
.rpgt-form button { padding: 0.6rem 1rem; border: 0; border-radius: 0.375rem; background: #1e3a8a; color: #ffffff; cursor: pointer; }
.rpgt-breakdown { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 1rem; }
.rpgt-breakdown dt { font-weight: 700; }
.rpgt-warnings { color: #92400e; }
.rpgt-error { color: #b91c1c; font-weight: 700; }
.rpgt-review { color: #92400e; font-weight: 700; }
@media (max-width: 640px) {
    .rpgt-breakdown { grid-template-columns: 1fr; }
    .rpgt-form { grid-template-columns: 1fr; }
}