/* pages/landing/base.css — landing ground, nav, hero type and layout.
   Split from the pre-#149 monolith — rule ORDER preserved; see docs/architecture.md
   ("CSS layers") for the load-order contract each page's <head> follows. */
/* landing.css — landing-only layout and components.
   Colors come from tokens.css only. */

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  scrollbar-gutter:stable both-edges;
}

body.landing{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(1100px circle at 12% -8%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 50%),
    radial-gradient(900px circle at 92% 6%, color-mix(in srgb, var(--accent2) 12%, transparent), transparent 44%),
    radial-gradient(800px circle at 50% -6%, color-mix(in srgb, var(--panel2) 60%, transparent), transparent 58%),
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 88%, var(--panel)) 0%, var(--bg) 42%, var(--bg) 100%);
  color:var(--ink);
  font:16px/1.7 var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
  position:relative;
  isolation:isolate;
}

body.landing::before,
body.landing::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-1;
}

body.landing::before{
  opacity:.32;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--line) 55%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--line) 55%, transparent) 1px, transparent 1px);
  background-size:120px 120px;
}

body.landing::after{
  background:
    radial-gradient(700px circle at 0% 100%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(700px circle at 100% 100%, color-mix(in srgb, var(--accent2) 12%, transparent), transparent 62%);
}

.landing ::selection{background:var(--accent);color:var(--panel)}
.landing :focus-visible{
  outline:2px solid var(--accent2);
  outline-offset:3px;
  border-radius:8px;
}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.jp{font-family:var(--jp)}

.skip{
  position:absolute;
  top:0;
  left:0;
  z-index:200;
  width:1px;
  height:1px;
  overflow:hidden;
  clip-path:inset(50%);
  white-space:nowrap;
  background:var(--accent);
  color:var(--panel);
  padding:10px 16px;
  border-radius:0 0 10px 0;
  font:600 14px var(--sans);
  text-decoration:none;
}
.skip:focus{width:auto;height:auto;clip-path:none;overflow:visible}

.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font:600 11px/1 var(--sans);
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mute);
  margin:0 0 18px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}

.lnav{
  position:sticky;
  top:0;
  z-index:50;
  background:color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--header-line, transparent);
  transition:border-color .2s ease,background .2s ease;
}
/* The line itself is components/header-line.css; the ground it sits on
   is the landing's own. */
.lnav.scrolled{background:color-mix(in srgb, var(--bg) 88%, transparent)}
.nav-in{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:72px;
}

/* The brand — mark and wordmark alike — is components/brand.css (#147).
   The gradient tile that used to live here was one of eight renderings. */

.nav-links{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-right:auto;
}
.nav-links a{
  color:var(--dim);
  text-decoration:none;
  font:600 13px/1 var(--sans);
  padding:10px 13px;
  border-radius:999px;
  border:1px solid transparent;
  transition:background .15s ease,color .15s ease,border-color .15s ease,transform .15s ease;
}
.nav-links a:hover{
  color:var(--ink);
  background:var(--hover);
  border-color:var(--line);
  transform:translateY(-1px);
}

.lbtn{
  cursor:pointer;
  transition:transform .15s ease,background .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease;
}