/* Roman Numeral Converter — style.css v1.0 */
.roman-wrap { max-width:620px; margin:0 auto; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif; color:#1a1a1a; }
.roman-header { display:flex; align-items:center; gap:12px; margin-bottom:20px; }
.roman-icon { font-size:32px; line-height:1; }
.roman-title { font-size:22px !important; font-weight:600 !important; margin:0 0 3px !important; padding:0 !important; border:none !important; color:#1a1a1a !important; }
.roman-sub { font-size:13px; color:#666; margin:0; }

/* Converter row */
.roman-converter-row { display:flex; align-items:flex-start; gap:12px; margin-bottom:14px; }
@media(max-width:480px){ .roman-converter-row { flex-direction:column; } .roman-swap-col { align-self:center; transform:rotate(90deg); } }
.roman-box { flex:1; }
.roman-box-lbl { display:block; font-size:12px; font-weight:700; color:#888; text-transform:uppercase; letter-spacing:.5px; margin-bottom:6px; }
.roman-input { width:100%; box-sizing:border-box; padding:12px 14px; border:2px solid #d0d0d0; border-radius:10px; font-size:20px; font-weight:600; color:#1a1a1a; background:#fff; outline:none; transition:border-color .15s; font-family:monospace; letter-spacing:1px; -moz-appearance:textfield; }
.roman-input::-webkit-inner-spin-button,.roman-input::-webkit-outer-spin-button { -webkit-appearance:none; }
.roman-input:focus { border-color:#7C3AED; box-shadow:0 0 0 3px rgba(124,58,237,.1); }
.roman-input-text { text-transform:uppercase; }
.roman-result-area { min-height:60px; background:#f3e8ff; border:1px solid #c4b5fd; border-radius:9px; padding:10px 14px; margin-top:8px; }
.roman-result-val { font-size:24px; font-weight:700; color:#6B21A8; font-family:serif; letter-spacing:2px; word-break:break-all; }
.roman-result-sub { font-size:12px; color:#888; margin-top:4px; }
.roman-result-area.error { background:#fee2e2; border-color:#fca5a5; }
.roman-result-area.error .roman-result-val { color:#991b1b; font-family:sans-serif; font-size:14px; letter-spacing:0; }

/* Swap button */
.roman-swap-col { display:flex; align-items:center; justify-content:center; padding-top:24px; }
.roman-swap-btn { width:40px; height:40px; border-radius:50%; border:2px solid #d0d0d0; background:#fff; font-size:20px; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:background .13s,border-color .13s; color:#1a1a1a; }
.roman-swap-btn:hover { background:#f3e8ff; border-color:#c4b5fd; }

/* Quick buttons */
.roman-quick-row { display:flex; align-items:center; gap:6px; flex-wrap:wrap; margin-bottom:16px; }
.roman-quick-lbl { font-size:12px; color:#888; }
.roman-quick-btn { padding:4px 10px; font-size:12px; border:1px solid #d0d0d0; border-radius:6px; background:#fff; color:#555; cursor:pointer; transition:background .13s; font-family:monospace; }
.roman-quick-btn:hover { background:#f3e8ff; border-color:#c4b5fd; color:#6B21A8; }

/* Section label */
.roman-section-lbl { font-size:11px; font-weight:700; color:#999; text-transform:uppercase; letter-spacing:.6px; margin-bottom:10px; }

/* Steps */
.roman-steps-block { background:#fafafa; border:1px solid #e8e8e8; border-radius:10px; overflow:hidden; margin-bottom:14px; }
.roman-step { display:flex; gap:10px; padding:10px 14px; border-bottom:1px solid #f0f0f0; font-size:13px; align-items:flex-start; }
.roman-step:last-child { border-bottom:none; }
.roman-step-num { width:22px; height:22px; border-radius:50%; background:#7C3AED; color:#fff; font-size:11px; font-weight:700; display:flex; align-items:center; justify-content:center; flex-shrink:0; margin-top:1px; }
.roman-step-body { flex:1; line-height:1.5; }
.roman-step-eq { font-family:serif; font-size:15px; color:#6B21A8; font-weight:700; }

/* Reference grid */
.roman-ref-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(80px,1fr)); gap:7px; margin-bottom:14px; }
.roman-ref-item { background:#f3e8ff; border:1px solid #c4b5fd; border-radius:8px; padding:8px 6px; text-align:center; }
.roman-ref-sym { font-size:18px; font-weight:700; color:#6B21A8; font-family:serif; }
.roman-ref-val { font-size:11px; color:#888; margin-top:2px; }

/* Conversion table */
.roman-table-wrap { overflow-x:auto; margin-bottom:14px; }
table.roman-table { width:100%; border-collapse:collapse; font-size:13px; }
table.roman-table th { padding:7px 10px; text-align:left; color:#888; font-size:11px; text-transform:uppercase; letter-spacing:.4px; border-bottom:1px solid #e8e8e8; background:#fafafa; font-weight:600; }
table.roman-table th:last-child { text-align:right; }
table.roman-table td { padding:7px 10px; border-bottom:1px solid #f5f5f5; }
table.roman-table td:first-child { font-family:monospace; font-weight:600; font-size:14px; color:#1a1a1a; }
table.roman-table td:last-child { text-align:right; font-family:serif; font-size:16px; font-weight:700; color:#6B21A8; }
table.roman-table tr:hover td { background:#f3e8ff; }
table.roman-table tr:last-child td { border-bottom:none; }