/* layout.css — Container, Grid, Header, Footer */

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section { padding-block: var(--space-5); }
.section--tight { padding-block: var(--space-4); }

.grid { display: grid; gap: var(--space-3); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Skip link ---------- */
.skip {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 200;
  background: var(--black);
  color: var(--yellow);
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
}
.skip:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: var(--border-thick);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.brand__mark {
  width: 38px; height: 38px;
  flex: none;
  display: grid;
  place-items: center;
  background: var(--black);
  color: var(--yellow);
}
.brand__name b { color: var(--black); }
.brand__name span { color: var(--grey-600); font-weight: 400; font-size: 0.7rem; display: block; letter-spacing: 0.18em; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
  margin: 0;
}
.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.5rem 0.7rem;
  border: 2px solid transparent;
  transition: all 0.18s var(--ease);
}
.nav__links a:hover { background: var(--yellow); border-color: var(--black); }
.nav__links a[aria-current="page"] {
  background: var(--black);
  color: var(--white);
}

.nav__toggle {
  display: none;
  width: 46px; height: 46px;
  background: var(--black);
  color: var(--white);
  border: var(--border);
  cursor: pointer;
  font-size: 1.3rem;
  align-items: center;
  justify-content: center;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--black);
  color: var(--paper);
  border-top: var(--border-thick);
  margin-top: var(--space-5);
}
.site-footer a { color: var(--paper); }
.site-footer a:hover { color: var(--yellow); }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-3);
  padding-block: var(--space-4);
}
.footer-col h4 {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  color: var(--yellow);
  margin-bottom: var(--space-2);
}
.footer-col ul { list-style: none; margin: 0; }
.footer-col li { margin-bottom: 0.5rem; font-size: 0.92rem; }
.footer-brand p { color: var(--grey-400); font-size: 0.9rem; max-width: 34ch; }

.footer-bottom {
  border-top: 1px solid #2a2a2a;
  padding-block: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--grey-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.social {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
}
.social a {
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid #333;
  transition: all 0.18s var(--ease);
}
.social a:hover { background: var(--yellow); border-color: var(--yellow); color: var(--black) !important; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 780px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: var(--border-thick);
    padding: var(--space-2);
    transform: translateY(-130%);
    transition: transform 0.3s var(--ease);
    box-shadow: 0 20px 30px rgba(0,0,0,0.12);
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { padding: 0.9rem; border: 2px solid var(--grey-100); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .brand__name span { display: none; }
}