.kix-tool { padding:16px; border:1px solid var(--line); border-radius:12px; background:var(--soft); margin-top:20px; }
.kix-tool h2 { margin-top:0; }
.kix-fields { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; margin-bottom:16px; }
.kix-fields label { min-width:0; font-weight:600; }
.kix-tool table { background:white; min-width:660px; table-layout:fixed; }
.kix-tool caption { text-align:left; font-weight:600; padding:8px 0; }
#kix-result { font-weight:700; color:var(--brand-dark); }
#kix-error { color:#9b1c1c; font-weight:600; }
@media(max-width:540px) { .kix-fields { grid-template-columns:minmax(0,1fr); } .kix-tool { padding:12px; } }

.kix-tool th:nth-child(1) { width:90px; }
.kix-tool th:nth-child(2) { width:105px; }
.kix-tool th:nth-child(3) { width:110px; }
.kix-tool th:nth-child(4) { width:100px; }