/* GST Calculator page styles (tier-standard tool). */
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:4px}
.calc-field label{display:block;font-weight:600;margin-bottom:6px}
.calc-field input,.calc-field select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit;font-size:1rem;box-sizing:border-box}
.calc-field input:focus,.calc-field select:focus{outline:2px solid var(--focus);outline-offset:1px}
.calc-mode{display:flex;gap:16px;margin-top:14px;flex-wrap:wrap}
.calc-mode label{display:flex;gap:8px;align-items:center;font-weight:600;cursor:pointer}
.calc-result{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:18px;margin-top:16px}
.calc-result .calc-row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line)}
.calc-result .calc-row:last-child{border-bottom:0}
.calc-result .calc-row.total{font-weight:700;font-size:1.2rem}
@media (max-width:640px){.calc-grid{grid-template-columns:1fr}}