/* ═══════════════════════════════════════════════════════
   knowledge.css — Tudo que Sabemos + Navegação Global
   Não altera nenhum estilo existente no style.css
   ═══════════════════════════════════════════════════════ */

/* ══════════════════════════════════════════════════════
   NAVEGAÇÃO ENTRE PÁGINAS (site-nav)
   Usada em index.html E votacoes.html
══════════════════════════════════════════════════════ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(13,17,23,.92);
  border-bottom: 1px solid rgba(45,143,221,.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-nav__inner {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 clamp(16px,3vw,40px);
  display: flex;
  align-items: center;
  gap: 4px;
  height: 52px;
}

.site-nav__link {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--f-head);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 8px 18px;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: color var(--fast), background var(--fast), border-color var(--fast);
  white-space: nowrap;
}

.site-nav__link:hover {
  color: var(--text);
  background: rgba(45,143,221,.06);
  border-color: rgba(45,143,221,.2);
}

.site-nav__link--active {
  color: var(--accent-bright);
  background: rgba(45,143,221,.1);
  border-color: rgba(45,143,221,.35);
  box-shadow: 0 0 10px rgba(45,143,221,.1);
}

.site-nav__icon {
  font-size: .9rem;
  line-height: 1;
}

/* Empurra o header para baixo da nav fixa */
.header  { padding-top: 72px !important; }

/* ══════════════════════════════════════════════════════
   GRADE DE CARDS TEMÁTICOS
══════════════════════════════════════════════════════ */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-bottom: 80px;
}

/* ── CARD ────────────────────────────────────────────── */
.k-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-top: 2px solid transparent;
  display: flex;
  flex-direction: column;
  position: relative;
  /* Animação de entrada */
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity .5s var(--ease),
    transform .5s var(--ease),
    border-color var(--fast),
    box-shadow var(--fast);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.k-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, currentColor, transparent);
  opacity: .4;
}

.k-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Cores por tema (border-top) */
.k-card--accent  { border-top-color: var(--accent-dim);       color: var(--accent-bright); }
.k-card--blue    { border-top-color: #1a6baa;                  color: #5bb8ff; }
.k-card--purple  { border-top-color: #5a3a99;                  color: #a87fff; }
.k-card--green   { border-top-color: #1a6644;                  color: #4caf77; }
.k-card--gold    { border-top-color: #7a5e20;                  color: #c9a84c; }
.k-card--red     { border-top-color: #882020;                  color: #ff6b4a; }
.k-card--teal    { border-top-color: #1a5e66;                  color: #4cd4d4; }

/* ── CABEÇALHO DO CARD ───────────────────────────────── */
.k-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid rgba(255,255,255,.05);
}

.k-card__icon {
  font-size: 1.3rem;
  line-height: 1;
  flex-shrink: 0;
  filter: drop-shadow(0 0 6px currentColor);
  opacity: .9;
}

.k-card__title {
  font-family: var(--f-head);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text);
  flex: 1;
}

.k-card__count {
  font-family: var(--f-head);
  font-size: .52rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}

/* ── ITENS DO CARD ───────────────────────────────────── */
.k-card__items {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.k-item {
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,.04);
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: background var(--fast);
}

.k-item:last-child { border-bottom: none; }

.k-item:hover {
  background: rgba(255,255,255,.02);
}

/* ── BADGES ──────────────────────────────────────────── */
.k-badge {
  display: inline-block;
  font-family: var(--f-head);
  font-size: .5rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  align-self: flex-start;
  white-space: nowrap;
}

.k-badge--confirmed {
  background: rgba(76,175,119,.15);
  color: #4caf77;
  border: 1px solid rgba(76,175,119,.3);
}

.k-badge--official {
  background: rgba(45,143,221,.15);
  color: var(--accent-bright);
  border: 1px solid rgba(45,143,221,.3);
}

.k-badge--beta {
  background: rgba(168,127,255,.15);
  color: #a87fff;
  border: 1px solid rgba(168,127,255,.3);
}

.k-badge--planned {
  background: rgba(255,255,255,.06);
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,.1);
}

.k-badge--launch {
  background: rgba(201,168,76,.15);
  color: #c9a84c;
  border: 1px solid rgba(201,168,76,.3);
}

/* ── TÍTULO E TEXTO DO ITEM ──────────────────────────── */
.k-item__title {
  font-family: var(--f-head);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--text);
  line-height: 1.3;
}

.k-item__text {
  font-family: var(--f-body);
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════════
   RESPONSIVO
══════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .knowledge-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

@media (max-width: 680px) {
  .knowledge-grid { grid-template-columns: 1fr; gap: 14px; }
  .site-nav__link { padding: 8px 12px; font-size: .58rem; }
  .site-nav__link span { display: none; } /* esconde ícone no mobile muito pequeno */
  .k-card__header { padding: 14px 16px 12px; }
  .k-item { padding: 12px 16px; }
}