/* ============================================================
   layout.css — header, container, hero, grids
   ============================================================ */

/* ---------- Header ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center;
  gap: 1.5rem;
  padding: 0 1.5rem;
  background: oklch(1 0 0 / 0.82);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 0.75rem; margin-right: auto; }
.brand__logo {
  width: 42px; height: 42px; flex: none;
  border-radius: 12px;
  background: var(--gradient-frost);
  display: grid; place-items: center;
  color: #fff;
  box-shadow: 0 4px 12px oklch(0.55 0.16 230 / 0.35);
}
.brand__logo svg { width: 24px; height: 24px; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-weight: 800; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand__tag { font-size: 0.78rem; color: var(--muted-foreground); }

.nav { display: flex; align-items: center; gap: 0.35rem; }
.nav__link {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.5rem 0.9rem; border-radius: var(--radius-md);
  font-size: 0.9rem; font-weight: 600; color: var(--muted-foreground);
  transition: background .15s, color .15s;
}
.nav__link svg { width: 17px; height: 17px; }
.nav__link:hover { background: var(--muted); color: var(--foreground); }
.nav__link.is-active {
  background: var(--primary); color: var(--primary-foreground);
  box-shadow: 0 2px 8px oklch(0.55 0.16 230 / 0.3);
}

/* ---------- Container / page ---------- */
.page { max-width: var(--container); margin: 0 auto; padding: 2.25rem 1.5rem 4rem; }

.hero { margin-bottom: 1.75rem; }
.hero__title { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; }
.hero__sub { margin-top: 0.35rem; color: var(--muted-foreground); font-size: 1rem; }

.section { margin-top: 1.5rem; }
.section__head { margin-bottom: 0.9rem; }
.section__title { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; }
.section__sub { margin-top: 0.1rem; font-size: 0.88rem; color: var(--muted-foreground); }

/* ---------- Grids ---------- */
.kpi-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
}
.param-grid { display: grid; gap: 0.85rem; grid-template-columns: repeat(4, 1fr); }
.empresa-grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, 1fr); }

@media (max-width: 980px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .param-grid { grid-template-columns: repeat(2, 1fr); }
  .empresa-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .topbar { gap: 0.75rem; padding: 0 1rem; }
  .brand__tag { display: none; }
  .nav__link span { display: none; }
  .nav__link { padding: 0.5rem 0.6rem; }
  .page { padding: 1.5rem 1rem 3rem; }
  .kpi-grid, .param-grid, .empresa-grid { grid-template-columns: 1fr; }
}