.spine-section,.spine-heading h3{scroll-margin-top:72px}.spine-section{background:#f0f0ee;color:#17191d}
.spine-heading{max-width:760px;margin-bottom:2.5rem}
.spine-heading h2{font:800 clamp(3rem,6vw,5.8rem)/1 Barlow Condensed,Arial,sans-serif;text-transform:uppercase;margin:.45rem 0 1rem}
.spine-heading h3{font:750 clamp(2rem,4vw,3.2rem)/1.1 Barlow Condensed,Arial,sans-serif;text-transform:uppercase;margin:0 0 1rem;color:#ba0712}
.spine-disclosure{max-width:1100px}
.spine-disclosure>summary{display:flex;align-items:center;justify-content:space-between;gap:1rem;cursor:pointer;background:#111318;color:#fff;padding:1rem 1.4rem;font:750 clamp(1.65rem,3vw,2.3rem)/1.2 Barlow Condensed,Arial,sans-serif;text-transform:uppercase;list-style:none}
.spine-disclosure>summary::-webkit-details-marker{display:none}
.spine-disclosure>summary:after{content:'+';font:400 2rem/1 Arial,sans-serif;color:#ff3543}
.spine-disclosure[open]>summary:after{content:'−'}
.spine-disclosure>summary:focus-visible{outline:3px solid #d20a16;outline-offset:3px}
.spine-content{padding-top:1.5rem}
.spine-intro{max-width:650px;color:#53575c;font-size:1.1rem;margin:0 0 1.5rem}
.spine-heading>p:last-child{font-size:1.1rem;color:#53575c;max-width:650px}
.spine-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:1.2rem;align-items:stretch}
.spine-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;background:#fff;padding:clamp(1.25rem,3vw,2.5rem);border-top:5px solid #d20a16}
.spine-form label{display:flex;flex-direction:column;gap:.55rem;font-weight:700;line-height:1.4;font-size:.96rem;min-width:0}
.spine-form input,.spine-form select{width:100%;min-height:48px;padding:.65rem .8rem;border:1px solid #b6b8bc;background:#fff;border-radius:2px;font:inherit;font-weight:500;color:#17191d}
.spine-form input:focus-visible,.spine-form select:focus-visible{outline:3px solid #d20a16;outline-offset:2px}
.spine-field-note{grid-column:1/-1;margin:0;color:#555b61;font-size:.9rem}
.spine-result{background:#111318;color:#fff;padding:clamp(1.5rem,4vw,3rem);display:flex;flex-direction:column;justify-content:center;min-width:0}
.spine-result-label{text-transform:uppercase;font-weight:800;letter-spacing:.11em;font-size:.78rem;color:#c6c8cc}
.spine-result strong{font:800 clamp(2.5rem,5vw,5rem)/1.05 Barlow Condensed,Arial,sans-serif;color:#ff3543;margin:1.15rem 0 .3rem;overflow-wrap:anywhere}
.spine-nearest{font-weight:700;font-size:1rem}
.spine-result p{line-height:1.55}
.spine-principle{border-top:1px solid #494b50;padding-top:1rem;color:#d6d8dc;font-size:.9rem}
.spine-explainer{max-width:1000px;margin-top:2rem;color:#50545a}
.spine-explainer h3{color:#17191d;font:700 1.75rem Barlow Condensed,Arial,sans-serif;text-transform:uppercase;margin:0}
.spine-explainer a{color:#af0711;text-decoration:underline;text-underline-offset:3px;font-weight:700}
@media(max-width:800px){.spine-layout{grid-template-columns:1fr}}
@media(max-width:580px){.spine-form{grid-template-columns:1fr}.spine-section{padding-inline:1.2rem}.spine-result strong{font-size:3.2rem}}