/* Shared tool-page navigation styles. */
:root{--purple:#8b5cf6;--ink:#211f33;--sub:#71708a;}
.topbar{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 10px;border-radius:0;background:rgba(255,255,255,.62);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);border:1px solid rgba(255,255,255,.75);box-shadow:0 1px 3px rgba(76,68,140,.10);}
.tb-home{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:10px;background:rgba(255,255,255,.7);border:1px solid #e5e7eb;color:#475569;text-decoration:none;font-size:12.5px;font-weight:600;white-space:nowrap;}
.tb-home:hover{background:#e2e8f0;}
.langswitch{display:flex;gap:3px;background:rgba(255,255,255,.5);border-radius:10px;padding:2.5px;}
.langswitch .tb-lang{padding:4px 11px;border-radius:8px;font-size:12px;font-weight:600;color:var(--sub);text-decoration:none;transition:.18s;}
.langswitch .tb-lang.active{background:var(--purple);color:#fff;box-shadow:0 4px 10px rgba(139,92,246,.35);}
body{padding-top:74px;}
@media(max-width:849px){
 .topbar{padding:5px 9px;}
 .tb-home{padding:4px 10px;font-size:11.5px;}
 .langswitch .tb-lang{padding:4px 9px;font-size:11.5px;}
 body{padding-top:68px;}
}

/* Keep the shared tool layout usable on very narrow phones. */
@media(max-width:360px){
 .container,.custom-container{min-width:0;max-width:100%;}
 .container>* ,.custom-container>*{min-width:0;max-width:100%;box-sizing:border-box;}
 .tool-header,.tool-title,.tool-desc,.center-tool,#tutorialBox,#faqBox,
 .content-box,.content-text,#faqContent,.faq-item,.faq-answer,
 .sec,.def-box,.example-box,.note-box{min-width:0;max-width:100%;overflow-wrap:anywhere;}
 .topbar{gap:4px;padding-inline:6px;}
 .topbar .tb-home{padding-inline:6px;font-size:10.5px;}
 .topbar .langswitch .tb-lang{padding-inline:6px;}
 .form-group,.form-row,.form-item,.row{min-width:0;max-width:100%;}
 .form-row{gap:8px;}
 .form-row>*{min-width:0;}
 .form-row input[type=range]{flex:1 1 0%;min-width:0;width:100%;}
 .form-row select,.form-row .form-select{flex:1 1 0%;min-width:0;width:0;max-width:100%;box-sizing:border-box;}
 .city-row{min-width:0;gap:8px;}
 .city-row>select,.city-row>input{flex:1 1 0%;min-width:0;width:0;max-width:100%;box-sizing:border-box;}
 .form-group select,.form-group .form-select{min-width:0;max-width:100%;box-sizing:border-box;}
 .row{gap:8px;}
 .row>*{min-width:0;}
 .row input{flex:1 1 0%;min-width:0;width:0;max-width:100%;}
 .value-text{flex:0 1 40px;min-width:0;}
 .sr-card{min-width:0;white-space:normal;overflow-wrap:anywhere;}
}