/* ==========================================================================
   layout.css — header/nav/shell grid, responsive layout, page scaffolding
   ========================================================================== */

.shell {
  width: min(var(--max), calc(100% - 2 * var(--space-4)));
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-8);
}

/* ------------------------------
   Header
------------------------------ */
.site-header {
  position: relative;
  padding: var(--space-6) 0 var(--space-4);
}

.header-frame {
  width: min(var(--max), calc(100% - 2 * var(--space-4)));
  margin: 0 auto;
  padding: var(--space-5);
  border-radius: var(--r-3);
  border: 1px solid var(--border-strong);
  background: var(--paper);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(6px);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--r-2);
  border: 1px dashed var(--border-strong);
  background: rgba(255,255,255,0.35);
}

body.theme-night-lamp .brand-mark {
  background: rgba(255,255,255,0.06);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, var(--accent), rgba(255,255,255,0.0) 62%),
              radial-gradient(circle at 60% 60%, var(--accent-2), rgba(255,255,255,0.0) 60%);
  box-shadow: 0 0 0 2px rgba(0,0,0,0.04);
}

.site-kicker {
  margin: 0;
  font-size: var(--fs-00);
  color: var(--muted);
  letter-spacing: 0.02em;
}

.site-title {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: 0.01em;
  text-shadow: 0 1px 0 rgba(255,255,255,0.30);
}

.header-toys {
  margin-left: auto;
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  align-items: center;
}

.toy-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.65rem;
}

.header-ornament {
  width: min(var(--max), calc(100% - 2 * var(--space-4)));
  margin: var(--space-3) auto 0;
  color: var(--ink-2);
  opacity: 0.8;
}

/* ------------------------------
   Global nav
------------------------------ */
.global-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--r-2);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.40);
}

body.theme-night-lamp .global-nav {
  background: rgba(255,255,255,0.06);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.42rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
}

.nav-link:hover {
  background: rgba(0,0,0,0.04);
}

body.theme-night-lamp .nav-link:hover {
  background: rgba(255,255,255,0.06);
}

.nav-link.is-here {
  border-color: var(--border-strong);
  background: linear-gradient(180deg, rgba(255,255,255,0.60), rgba(255,255,255,0.30));
  box-shadow: 0 0 0 3px var(--glow);
}

body.theme-night-lamp .nav-link.is-here {
  background: rgba(255,255,255,0.08);
}

/* ------------------------------
   Breadcrumbs / “You are here”
------------------------------ */
.breadcrumbs {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--r-2);
  border: 1px dashed var(--border);
  background: rgba(255,255,255,0.34);
}

body.theme-night-lamp .breadcrumbs {
  background: rgba(255,255,255,0.05);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--fs-00);
}

.crumbs li::after {
  content: "›";
  margin-left: var(--space-2);
  color: var(--muted);
}

.crumbs li:last-child::after {
  content: "";
  margin: 0;
}

.whereami {
  margin: 0;
  font-size: var(--fs-00);
  color: var(--muted);
  text-align: right;
}

/* ------------------------------
   Main shell layout
------------------------------ */
.shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.sidebar,
.main {
  min-width: 0;
}

/* Provide basic spacing even before modules.css exists */
.sidebar > * + * {
  margin-top: var(--space-5);
}
.main > * + * {
  margin-top: var(--space-6);
}

/* Wide layout: two columns */
@media (min-width: 920px) {
  .shell {
    grid-template-columns: 320px 1fr;
    align-items: start;
  }

  .sidebar {
    position: sticky;
    top: var(--space-6);
    align-self: start;
  }
}

/* ------------------------------
   Local nav (in-panel)
------------------------------ */
.local-nav {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  align-items: center;
}

.local-nav a {
  font-size: var(--fs-00);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.32rem 0.55rem;
  background: rgba(255,255,255,0.35);
  color: var(--ink);
}

body.theme-night-lamp .local-nav a {
  background: rgba(255,255,255,0.06);
}

.local-nav a:hover {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px var(--glow);
}

.local-nav.vertical {
  flex-direction: column;
  align-items: stretch;
}

.local-nav.vertical a {
  border-radius: var(--r-2);
}

/* ------------------------------
   Footer
------------------------------ */
.site-footer {
  padding: var(--space-7) 0 var(--space-9);
}

.footer-frame {
  width: min(var(--max), calc(100% - 2 * var(--space-4)));
  margin: 0 auto;
  padding: var(--space-5);
  border-radius: var(--r-3);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.52);
  box-shadow: var(--shadow-1);
}

body.theme-night-lamp .footer-frame {
  background: rgba(255,255,255,0.06);
}

/* ------------------------------
   Small-screen tweaks
------------------------------ */
@media (max-width: 520px) {
  .header-frame {
    padding: var(--space-4);
  }

  .whereami {
    text-align: left;
  }

  .breadcrumbs {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-toys {
    margin-left: 0;
  }
}