.masthead{z-index:40;transition:background .5s var(--ease), border-color .5s var(--ease);border-bottom:1px solid #0000;position:fixed;inset:0 0 auto}.masthead.is-stuck{background:var(--ink-900);border-bottom-color:var(--hairline)}.masthead__inner{max-width:var(--shell);padding:.85rem var(--gutter);align-items:center;gap:1.5rem;margin-inline:auto;display:flex}@media (min-width:1200px){.masthead__inner{padding-right:calc(var(--gutter) + var(--rail))}}.masthead__brand{min-height:44px;font-family:var(--display);letter-spacing:-.02em;color:var(--bone);align-items:center;gap:.6rem;font-size:1.06rem;font-weight:600;display:inline-flex}.mark{color:var(--violet);transition:transform .6s var(--ease), color .4s var(--ease)}.masthead__brand:hover .mark{color:var(--cyan);transform:scaleY(-1)}.masthead__nav{align-items:center;gap:.25rem;margin-left:auto;display:flex}.masthead__link{font-size:var(--step--1);color:var(--mist);transition:color .3s var(--ease), background .3s var(--ease);border-radius:999px;align-items:baseline;gap:.42rem;padding:.42rem .7rem;display:inline-flex}.masthead__link:hover{color:var(--bone);background:#9aa1bb14}.masthead__link.is-active{color:var(--bone)}.masthead__idx{font-family:var(--mono);letter-spacing:.08em;color:var(--mist-dim);font-variant-numeric:tabular-nums;transition:color .3s var(--ease);font-size:.62rem}.masthead__link.is-active .masthead__idx{color:var(--violet)}.masthead__actions{align-items:center;gap:.75rem;display:flex}.masthead__cta{font-size:var(--step--1);padding:.62rem 1.2rem}.masthead__burger{border:1px solid var(--hairline);border-radius:999px;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:2.75rem;height:2.75rem;display:none}.masthead__burger span{background:var(--bone);width:15px;height:1.5px;transition:transform .4s var(--ease), opacity .3s var(--ease);display:block}.masthead.is-open .masthead__burger span:first-child{transform:translateY(3.75px)rotate(45deg)}.masthead.is-open .masthead__burger span:last-child{transform:translateY(-3.75px)rotate(-45deg)}@media (max-width:1080px){.masthead__burger{display:flex}.masthead__nav{padding:.75rem var(--gutter) 1.5rem;-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--hairline);transition:transform .5s var(--ease);background:#05060df5;flex-direction:column;align-items:stretch;gap:0;position:fixed;inset:4rem 0 auto;transform:translateY(-125%)}.masthead.is-open .masthead__nav{transform:none}.masthead__link{border-bottom:1px solid var(--hairline);font-size:var(--step-0);border-radius:0;padding:.85rem .25rem}}@media (max-width:520px){.masthead__cta{padding:.72rem .95rem}.masthead__brand span{display:none}.masthead__brand{justify-content:center;min-width:44px}}
.footer{z-index:1;border-top:1px solid var(--hairline);background:var(--ink-900);padding-block:clamp(2.2rem,5vh,3.4rem);position:relative}.footer__inner{flex-wrap:wrap;align-items:center;gap:1.2rem 2rem;display:flex}.footer__brand{min-height:44px;font-family:var(--display);letter-spacing:-.02em;align-items:center;gap:.55rem;font-weight:600;display:inline-flex}.footer__links{flex-wrap:wrap;gap:1.4rem;margin-left:auto;display:flex}.footer__links a{min-height:44px;font-size:var(--step--1);color:var(--mist);transition:color .3s var(--ease), border-color .3s var(--ease);border-bottom:1px solid #0000;align-items:center;display:inline-flex}.footer__links a:hover{color:var(--bone);border-bottom-color:var(--violet)}.footer__note{border-top:1px solid var(--hairline);width:100%;font-size:var(--step--2);color:var(--mist-dim);padding-top:1.3rem}