/* Shared site header + nav (resume + work). Uses each page's tokens. */
.site-header{position:sticky;top:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px clamp(16px,4vw,40px);background:var(--bg);border-bottom:1px solid var(--line);font-family:var(--mono)}
.site-header a{text-decoration:none}
.site-header .brand{font-size:13px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--ink)}
.site-header .brand:hover{color:var(--accent)}
.site-nav{display:flex;align-items:center;gap:6px}
.site-nav a{display:inline-flex;align-items:center;justify-content:center;min-height:36px;min-width:36px;padding:6px 12px;
  font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mono-mute,var(--mute));border-bottom:2px solid transparent}
.site-nav a:hover{color:var(--accent)}
.site-nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
.site-nav a:focus-visible,.nav-toggle:focus-visible,.site-header .brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.site-nav .home svg{width:18px;height:18px;display:block}
.nav-toggle{display:none;align-items:center;gap:8px;min-height:40px;min-width:40px;padding:8px 10px;background:transparent;
  border:1px solid var(--line);color:var(--ink);font:inherit;font-size:12px;letter-spacing:.12em;text-transform:uppercase;cursor:pointer}
.nav-toggle .bars,.nav-toggle .bars::before,.nav-toggle .bars::after{display:block;width:18px;height:2px;background:currentColor;position:relative;content:""}
.nav-toggle .bars::before{position:absolute;top:-6px}.nav-toggle .bars::after{position:absolute;top:6px}
.nav-toggle[aria-expanded="true"] .bars{background:transparent}
.nav-toggle[aria-expanded="true"] .bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bars::after{top:0;transform:rotate(-45deg)}
@media (max-width:720px){
  .nav-toggle{display:inline-flex}
  .site-nav{position:absolute;top:100%;right:0;left:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);padding:6px clamp(16px,4vw,40px) 12px}
  .site-nav a{justify-content:flex-start;min-height:44px;border-bottom:1px solid var(--line);font-size:14px}
  .site-nav a[aria-current="page"]{border-bottom-color:var(--accent)}
  .js .site-nav[data-open="false"]{display:none}
}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}