/* tools-common.css ??Shared styles for all 5 tool pages */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:#0f172a;color:#f1f5f9;line-height:1.6}
a{color:#3b82f6;text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:2rem;font-weight:800;color:#f1f5f9;margin-bottom:16px;text-align:center;padding:32px 20px 0}
h2{color:#f1f5f9;font-size:17px;margin-bottom:14px}
h3{color:#60a5fa;font-size:14px;margin:14px 0 8px}
label{display:block;font-weight:600;font-size:14px;color:#94a3b8;margin-bottom:6px}
input,select{width:100%;padding:10px 14px;border:1px solid #475569;border-radius:8px;font-size:1rem;margin-bottom:16px;background:#0f172a;color:#f1f5f9}
input:focus,select:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,.2)}
.btn,button[type="submit"]{display:block;width:100%;padding:12px 28px;border-radius:8px;font-size:1rem;font-weight:600;background:#2563eb;color:#fff;border:none;cursor:pointer;min-height:48px}
.btn:hover,button[type="submit"]:hover{background:#1d4ed8}
.card{background:#1e293b;border-radius:12px;padding:24px;margin-bottom:24px}
.note{font-size:13px;color:#94a3b8;line-height:1.8}
.note strong{color:#f1f5f9}
.ref-table{width:100%;border-collapse:collapse;margin-top:12px}
.ref-table th{background:#334155;color:#f1f5f9;padding:10px 14px;text-align:left;font-size:13px}
.ref-table td{padding:10px 14px;border-bottom:1px solid #334155;color:#f1f5f9;font-size:13px}
.ref-table tr:hover td{background:rgba(59,130,246,.05)}
.result,.results{display:none;margin-top:16px;padding:20px;background:#1e293b;border:2px solid #3b82f6;border-radius:10px}
.result .val,.result-value{font-size:2rem;font-weight:800;color:#60a5fa}
.result .label,.result-label{font-size:13px;color:#94a3b8;margin-top:2px}
.result-unit{font-size:0.9rem;color:#94a3b8;margin-left:4px}
.result-item{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid #334155}
.result-item:last-child{border-bottom:none}
.brand-ref{background:#0f172a;padding:12px;border-left:4px solid #3b82f6;border-radius:4px;margin-top:8px;font-size:13px;color:#94a3b8}
.brand-ref strong{color:#60a5fa}
.error{color:#fca5a5;margin-top:12px;padding:12px;background:rgba(239,68,68,.15);border-radius:6px;font-size:13px;display:none}
.tip-icon{display:inline-block;width:16px;height:16px;border-radius:50%;background:#334155;color:#94a3b8;font-size:11px;text-align:center;line-height:16px;cursor:help;margin-left:4px;position:relative;vertical-align:middle}
.tip-icon:hover::after,.tip-icon:focus::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:#1e293b;color:#f1f5f9;padding:8px 12px;border-radius:6px;font-size:12px;line-height:1.4;width:220px;white-space:normal;border:1px solid #475569;z-index:50;pointer-events:none;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.tip-icon:hover::before,.tip-icon:focus::before{content:'';position:absolute;bottom:calc(100% + 2px);left:50%;transform:translateX(-50%);border:4px solid transparent;border-top-color:#475569;z-index:51}
.skip-link{position:absolute;left:-9999px;top:4px;z-index:999;background:#2563eb;color:#fff;padding:8px 16px;border-radius:4px;font-size:14px;font-weight:600}
.skip-link:focus{left:4px}
footer{border-top:1px solid #334155;padding:32px 20px;text-align:center;color:#94a3b8;font-size:.85rem;margin-top:48px}
footer a{color:#94a3b8;text-decoration:none}
@media print{nav,#cookie-banner,footer,.skip-link,.tip-icon{display:none!important}body{background:#fff!important;color:#000!important}.card,.container,.results,.result{background:#fff!important;color:#000!important;box-shadow:none!important;border-color:#ddd!important}h1,h2,h3,strong,.result-value,.result .val{color:#000!important}p,label,.result-label,.note{color:#333!important}.ref-table th{background:#eee!important;color:#000!important}.ref-table td{color:#000!important;border-color:#ddd!important}}
@media(max-width:768px){.container{grid-template-columns:1fr!important}.form-group{grid-template-columns:1fr!important}}

.hero{background:linear-gradient(135deg,#1e293b,#2563eb);color:#fff;padding:40px 24px;text-align:center}
.hero h1{font-size:2rem;font-weight:800;margin-bottom:8px;color:#fff}
.hero p{color:rgba(255,255,255,.8);font-size:1rem}