/* RAPP site — components
 * Site chrome: header, nav, footer, theme toggle, cards, kicker, button.
 * Used by partials/header.html + partials/footer.html.
 */

/* ───── Site header ───── */
.site-header{
  position:sticky; top:0; z-index:50;
  width:100%;
  border-bottom:1px solid var(--border);
  background:rgba(13,17,23,.82);
  -webkit-backdrop-filter:blur(var(--header-blur));
  backdrop-filter:blur(var(--header-blur));
}
[data-theme="light"] .site-header{ background:rgba(255,255,255,.85); }

.site-header-inner{
  max-width:var(--site-max);
  margin:0 auto;
  padding:0 var(--s-5);
  height:var(--header-h);
  display:flex; align-items:center; gap:var(--s-5);
}

.site-brand{
  display:flex; align-items:center; gap:10px;
  color:var(--text); font-weight:700; font-size:15px;
  text-decoration:none;
}
.site-brand:hover{ text-decoration:none; }
.site-brand .logo{ font-size:22px; line-height:1; }
.site-brand .name{ letter-spacing:.2px; }
.site-brand .ver{ color:var(--dim); font-weight:400; font-size:12px; margin-left:6px; }

.site-nav{
  margin-left:auto;
  display:flex; align-items:center; gap:var(--s-5);
  font-size:14px;
}
.site-nav a{
  color:var(--text-dim);
  padding:6px 0;
  border-bottom:2px solid transparent;
  transition:color .15s, border-color .15s;
}
.site-nav a:hover{ color:var(--text); text-decoration:none; }
.site-nav a[aria-current="page"]{
  color:var(--text);
  border-bottom-color:var(--accent);
}

.site-nav .sep{ color:var(--muted); font-size:11px; }

.theme-toggle{
  background:transparent; border:1px solid var(--border2); color:var(--text-dim);
  width:34px; height:32px; border-radius:6px; cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:14px; line-height:1;
  transition:border-color .15s, color .15s;
}
.theme-toggle:hover{ border-color:var(--accent); color:var(--text); }
.theme-toggle .sun{ display:none; }
[data-theme="light"] .theme-toggle .sun{ display:inline; }
[data-theme="light"] .theme-toggle .moon{ display:none; }

/* ───── Mobile nav ───── */
.nav-toggle{
  display:none;
  background:transparent; border:1px solid var(--border2); color:var(--text);
  width:34px; height:32px; border-radius:6px; cursor:pointer;
  align-items:center; justify-content:center; font-size:18px;
  margin-left:auto;
}
@media (max-width:720px){
  .site-nav{
    position:absolute; top:var(--header-h); left:0; right:0;
    flex-direction:column; align-items:stretch;
    background:var(--bg);
    border-bottom:1px solid var(--border);
    padding:var(--s-3) var(--s-5);
    gap:0;
    display:none;
  }
  .site-nav.open{ display:flex; }
  .site-nav a{ padding:10px 0; border-bottom:1px solid var(--border); }
  .site-nav .sep{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .theme-toggle{ margin-left:8px; }
}

/* ───── Site footer ───── */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--panel);
  padding:var(--s-7) var(--s-5);
  margin-top:var(--s-8);
}
.site-footer-inner{
  max-width:var(--site-max);
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:var(--s-7);
  font-size:14px;
  color:var(--text-dim);
}
.site-footer h4{
  font-size:11px; text-transform:uppercase; letter-spacing:.1em;
  color:var(--text); font-weight:700; margin-bottom:var(--s-3);
}
.site-footer ul{ list-style:none; display:grid; gap:8px; }
.site-footer .cols{
  display:grid; grid-template-columns:repeat(3,1fr); gap:var(--s-5);
}
.site-footer .meta{
  margin-top:var(--s-5);
  padding-top:var(--s-4);
  border-top:1px solid var(--border);
  font-size:12px; color:var(--muted);
}
@media (max-width:720px){
  .site-footer-inner{ grid-template-columns:1fr; gap:var(--s-5); }
  .site-footer .cols{ grid-template-columns:1fr 1fr; }
}

/* ───── Cards (used on landing + docs index) ───── */
.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));
  gap:var(--s-4);
}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:var(--s-5);
  transition:border-color .15s, transform .15s;
  display:flex; flex-direction:column; gap:8px;
  text-decoration:none; color:inherit;
}
.card:hover{
  border-color:var(--accent);
  transform:translateY(-2px);
  text-decoration:none;
}
.card .card-eyebrow{
  font-size:11px; text-transform:uppercase; letter-spacing:.1em;
  color:var(--accent); font-weight:600;
}
.card h3{
  font-size:18px; font-weight:700; line-height:1.3;
  color:var(--text);
}
.card p{
  color:var(--text-dim); font-size:14px; line-height:1.55;
}
.card .card-meta{
  margin-top:auto;
  padding-top:8px;
  font-size:12px; color:var(--muted);
}

/* ───── Eyebrow / kicker tag ───── */
.kicker{
  display:inline-block;
  font-size:.78rem; font-weight:700; letter-spacing:2px; text-transform:uppercase;
  color:var(--accent);
  padding:6px 14px;
  border:1px solid var(--accent);
  border-radius:999px;
  background:rgba(88,166,255,.08);
}
[data-theme="light"] .kicker{ background:rgba(9,105,218,.08); }

/* ───── Buttons ───── */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 18px;
  border-radius:8px;
  font-size:14px; font-weight:600;
  text-decoration:none;
  transition:transform .15s, border-color .15s, background .15s;
  cursor:pointer;
  border:1px solid var(--border2);
  color:var(--text);
  background:var(--surface);
}
.btn:hover{ border-color:var(--accent); transform:translateY(-1px); text-decoration:none; }
.btn-primary{
  border-color:var(--accent);
  background:var(--accent);
  color:#0d1117;
}
.btn-primary:hover{ background:var(--blue); border-color:var(--blue); color:#fff; }

/* ───── Animations ───── */
@keyframes fadeUp{ from{opacity:0; transform:translateY(14px)} to{opacity:1; transform:translateY(0)} }
.animate{ animation:fadeUp .6s ease both; }
.animate.d1{ animation-delay:.06s }
.animate.d2{ animation-delay:.14s }
.animate.d3{ animation-delay:.22s }
.animate.d4{ animation-delay:.30s }
.animate.d5{ animation-delay:.38s }
.animate.d6{ animation-delay:.46s }
@media (prefers-reduced-motion:reduce){ .animate{ animation:none; } }