/* Shared calculator styling — loaded by each /tools/*.html page */
:root{--bg:#faf8f4;--ink:#1a1a1a;--ink-soft:#4a4a4a;--ink-muted:#7a7a7a;--accent:#8b6f47;--rule:#e6e0d6;--highlight:#fbf6ec;}
body{font-family:'Inter',-apple-system,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;}
.serif{font-family:'Fraunces',Georgia,serif;}
.balance{text-wrap:balance;}
.divider{border-top:1px solid var(--rule);}
.section-label{font-size:11px;text-transform:uppercase;letter-spacing:.18em;color:var(--accent);font-weight:600;}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 1.6rem;border-radius:4px;font-weight:500;font-size:15px;transition:all .15s ease;cursor:pointer;border:none;}
.btn-primary{background:var(--ink);color:var(--bg);}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px);}
.btn-ghost{color:var(--ink);border:1px solid var(--rule);background:transparent;}
.btn-ghost:hover{border-color:var(--ink);}
.topnav a.nav-link{color:var(--ink-soft);font-size:14px;font-weight:500;}
.topnav a.nav-link:hover{color:var(--ink);}
.topnav a.nav-link.active{color:var(--ink);}
.topnav a.nav-link.active::after{content:"";display:block;height:1px;background:var(--accent);margin-top:4px;}
#mobile-menu{display:none;}
#mobile-menu.open{display:block;}
.calc-panel{background:#fff;border:1px solid var(--rule);border-radius:12px;padding:2rem;}
.calc-row{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.2rem;}
.calc-row label{font-size:13px;color:var(--ink-soft);font-weight:500;}
.calc-row input, .calc-row select{background:#fff;border:1px solid var(--rule);border-radius:6px;padding:.75rem 1rem;font-size:15px;color:var(--ink);width:100%;font-family:inherit;}
.calc-row input:focus, .calc-row select:focus{outline:none;border-color:var(--accent);}
.result-panel{background:var(--ink);color:var(--bg);border-radius:12px;padding:2rem;margin-top:1.5rem;}
.result-row{display:flex;justify-content:space-between;align-items:baseline;padding:.8rem 0;border-bottom:1px dashed rgba(250,248,244,.2);}
.result-row:last-of-type{border-bottom:none;}
.result-row .label{color:rgba(250,248,244,.75);font-size:14px;}
.result-row .amount{font-family:'Fraunces',Georgia,serif;font-weight:600;font-size:18px;font-variant-numeric:tabular-nums;}
.result-total{background:var(--accent);color:#fff;border-radius:8px;padding:1.1rem 1.4rem;display:flex;justify-content:space-between;align-items:baseline;margin-top:1rem;}
.result-total .label{letter-spacing:.04em;font-size:14px;text-transform:uppercase;}
.result-total .amount{font-family:'Fraunces',Georgia,serif;font-size:28px;font-weight:600;font-variant-numeric:tabular-nums;}
.calc-note{font-size:13px;color:var(--ink-muted);line-height:1.6;margin-top:1.5rem;}