/* ============ Hero da página ============ */
.fn-hero { padding: 80px 0 60px; }
.fn-back {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 14px; font-weight: 500;
  margin-bottom: 32px; transition: color .2s;
}
.fn-back:hover { color: var(--accent); }
.fn-hero__title { margin-bottom: 24px; }
.fn-hero__meta {
  display: flex; gap: 48px; margin-top: 48px; flex-wrap: wrap;
  padding-top: 32px; border-top: 1px solid var(--border);
}
.fn-hero__meta > div { display: flex; flex-direction: column; }
.fn-hero__meta strong {
  font-family: var(--display); font-size: 48px; font-weight: 700;
  line-height: 1; letter-spacing: -0.02em;
}
.fn-hero__meta span { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ============ Filtros ============ */
.fn-filters {
  position: sticky; top: 72px; z-index: 40;
  background: var(--nav-bg-scrolled);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.fn-tabs {
  display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.fn-tabs::-webkit-scrollbar { display: none; }
.fn-tab {
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 500;
  color: var(--muted); border: 1px solid var(--border); background: var(--card);
  white-space: nowrap; transition: var(--transition);
}
.fn-tab:hover { color: var(--text-strong); border-color: var(--border-strong); }
.fn-tab.is-active {
  background: var(--accent); color: #fff; border-color: var(--accent);
}

/* ============ Section ============ */
.fn-section { padding: 60px 0 100px; border-top: none; }

/* ============ Grid ============ */
.fn-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.fn-card {
  position: relative;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px 24px 24px;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
  overflow: hidden;
}
.fn-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.fn-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  background: var(--card-hover);
}
.fn-card:hover::before { transform: scaleX(1); }
.fn-card__cat {
  display: inline-block; font-size: 11px; font-weight: 600;
  color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.fn-card h3 {
  font-size: 17px; margin-bottom: 8px; line-height: 1.3;
  color: var(--text-strong);
}
.fn-card p { color: var(--muted); font-size: 14px; line-height: 1.55; }
.fn-card[hidden] { display: none; }

.fn-empty {
  text-align: center; padding: 80px 24px; color: var(--muted);
}

/* Animação de entrada dos cards ao filtrar */
@keyframes fnCardIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.fn-card:not([hidden]) { animation: fnCardIn .35s ease both; }

/* ============ Responsive ============ */
@media (max-width: 900px) {
  .fn-grid { grid-template-columns: repeat(2, 1fr); }
  .fn-hero__meta { gap: 32px; }
  .fn-hero__meta strong { font-size: 36px; }
}
@media (max-width: 600px) {
  .fn-hero { padding: 60px 0 40px; }
  .fn-grid { grid-template-columns: 1fr; }
  .fn-filters { top: 72px; padding: 12px 0; }
}