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:root{
–bone:#F4EBDD; –bone-2:#EFE3D0; –ink:#1B1410; –ink-soft:#3D2E22;
–terra:#C44A2E; –terra-deep:#9F3A22; –forest:#3B5239; –butter:#E4B23E;
–berry:#B43159; –mute:#8C7A66; –line:rgba(27,20,16,.16);
}
.serif-italic{font-family:’Fraunces’,serif;font-style:italic;font-weight:400}

.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:15px 34px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;font-size:13px;transition:.25s;cursor:pointer;border:none}
.btn-terra{background:var(–terra);color:#fff}.btn-terra:hover{background:var(–terra-deep)}
.btn-ghost{background:transparent;color:var(–ink);border:1.5px solid var(–line)}.btn-ghost:hover{border-color:var(–ink)}

/* INTRO */
.page-intro{padding:64px 0 36px;text-align:center}
.page-intro .eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;color:var(–terra);font-weight:600;margin-bottom:16px}
.page-intro h1{font-size:clamp(38px,5vw,64px)}
.page-intro h1 em{color:var(–terra-deep)}
.page-intro p{color:var(–ink-soft);font-size:18px;max-width:620px;margin:20px auto 0}

/* TABS */
.tabs-wrap{padding:8px 0 0}
.tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.tab{border-radius:999px;padding:11px 26px;border:1.5px solid var(–line);background:var(–bone);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:.2s;white-space:nowrap}
.tab.active,.tab:hover{background:var(–terra);color:#fff;border-color:var(–terra)}

/* HOW TO MEASURE */
.measure{padding:80px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 50px}
.sec-head .eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;color:var(–terra);font-weight:600;margin-bottom:16px}
.sec-head h2{font-size:clamp(28px,4vw,46px)}
.sec-head p{color:var(–ink-soft);margin-top:14px;font-size:16.5px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:var(–bone-2);border:1px solid var(–line);border-radius:6px;padding:30px 24px;text-align:center;position:relative}
.step .num{position:absolute;top:18px;right:20px;font-family:’Fraunces’,serif;font-style:italic;font-size:34px;color:var(–terra);opacity:.4}
.step .ic{font-size:42px;margin-bottom:16px}
.step h3{font-size:20px;margin-bottom:10px}
.step p{font-size:14px;color:var(–ink-soft)}

/* TABLES */
.tables{background:var(–bone-2);padding:80px 0}
.table-block{margin-bottom:60px}
.table-block:last-child{margin-bottom:0}
.table-block h3{font-size:26px;margin-bottom:6px}
.table-block h3 em{color:var(–terra)}
.table-block .note{color:var(–mute);font-size:14px;margin-bottom:22px}
.table-scroll{overflow-x:auto;border:1px solid var(–line);border-radius:6px;background:var(–bone)}
table{width:100%;border-collapse:collapse;min-width:560px}
th,td{padding:14px 18px;text-align:left;font-size:14.5px}
th{background:var(–ink);color:var(–bone);font-family:’Instrument Sans’;font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;position:sticky;left:auto}
thead th:first-child,tbody td:first-child{position:sticky;left:0;z-index:2}
thead th:first-child{background:var(–terra-deep)}
tbody td:first-child{background:var(–bone-2);font-weight:600}
tbody tr:nth-child(even) td{background:var(–bone-2)}
tbody tr:nth-child(even) td:first-child{background:var(–bone)}
tbody tr:hover td{background:rgba(196,74,46,.08)}

/* CALCULATOR */
.calc{padding:90px 0}
.calc-card{max-width:880px;margin:0 auto;background:var(–forest);color:var(–bone);border-radius:8px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.calc-card h2{font-size:34px;color:#fff;margin-bottom:10px}
.calc-card h2 em{color:var(–butter)}
.calc-card p{opacity:.9;font-size:15px;margin-bottom:24px}
.calc-field{margin-bottom:16px}
.calc-field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;letter-spacing:.03em}
.calc-field input,.calc-field select{width:100%;padding:13px 16px;border-radius:5px;border:none;font-family:inherit;font-size:15px;background:rgba(255,255,255,.95);color:var(–ink)}
.calc-result{background:rgba(255,255,255,.1);border:1px dashed rgba(244,235,221,.4);border-radius:6px;padding:34px;text-align:center}
.calc-result .lbl{font-size:12px;text-transform:uppercase;letter-spacing:.12em;opacity:.8}
.calc-result .big{font-family:’Fraunces’,serif;font-size:64px;color:var(–butter);line-height:1;margin:10px 0}
.calc-result .sub{font-size:14px;opacity:.9}
.calc .btn-terra{margin-top:6px}

/* TIPS */
.tips{background:var(–bone-2);padding:70px 0}
.tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tip{background:var(–bone);border:1px solid var(–line);border-radius:6px;padding:26px}
.tip .ic{font-size:26px;margin-bottom:12px}
.tip h4{font-size:18px;margin-bottom:8px}
.tip p{font-size:14px;color:var(–ink-soft)}
.brand-note{max-width:880px;margin:36px auto 0;background:var(–butter);color:var(–ink);border-radius:6px;padding:20px 26px;font-size:15px;display:flex;gap:14px;align-items:flex-start}
.brand-note b{font-family:’Fraunces’,serif;font-style:italic}

@media(max-width:880px){
.tabs{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;padding-bottom:8px}
.steps{grid-template-columns:1fr 1fr}
.calc-card{grid-template-columns:1fr;padding:30px;gap:26px}
.tips-grid{grid-template-columns:1fr}
}
@media(max-width:520px){.steps{grid-template-columns:1fr}}