/* ============================================
   CASE THEMES — variações controladas
   ============================================ */

.case-theme-default {
  --case-accent: #1D3E8C;
  --case-accent-soft: rgba(29,62,140,.10);
}

.case-theme-sinal {
  --case-accent: #8B5CF6;
  --case-accent-soft: rgba(139,92,246,.10);
  --sinal-0:#22C55E; --sinal-1:#3B82F6; --sinal-2:#8B5CF6;
  --sinal-3:#F59E0B; --sinal-4:#F97316; --sinal-5:#EF4444;
}

.case-theme-tipo {
  --case-accent: #1D3E8C;
  --case-accent-soft: rgba(29,62,140,.08);
}

.case-theme-cnp {
  --case-accent: #213F99;
  --case-accent-soft: rgba(33,63,153,.08);
  --cnp-insights:#213F99;
  --cnp-business:#55B8D2;
  --cnp-institutional:#58A987;
  --cnp-social:#D28B67;
}

.item-sinal-0 { --item-accent:var(--sinal-0); }
.item-sinal-1 { --item-accent:var(--sinal-1); }
.item-sinal-2 { --item-accent:var(--sinal-2); }
.item-sinal-3 { --item-accent:var(--sinal-3); }
.item-sinal-4 { --item-accent:var(--sinal-4); }
.item-sinal-5 { --item-accent:var(--sinal-5); }

.item-cnp-insights { --item-accent:var(--cnp-insights); }
.item-cnp-business { --item-accent:var(--cnp-business); }
.item-cnp-institutional { --item-accent:var(--cnp-institutional); }
.item-cnp-social { --item-accent:var(--cnp-social); }

/* Componentes específicos que continuam sem criar CSS por página */
.signal-levels {
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:.45rem;
  margin:0;
  padding:0;
  list-style:none;
}
.signal-levels li {
  padding-top:.6rem;
  border-top:3px solid var(--level-color);
}
.signal-levels span {
  display:block;
  font-family:var(--font-display);
}
.signal-levels small {
  color:var(--ink-faint);
  font-size:.65rem;
}

.signal-table {
  width:100%;
  border-collapse:collapse;
}
.signal-table th,
.signal-table td {
  padding:.75rem .5rem;
  border-bottom:1px solid var(--rule);
  text-align:left;
}
.signal-table th {
  color:var(--ink-faint);
  font-size:var(--size-micro);
  letter-spacing:.08em;
  text-transform:uppercase;
}
.signal-table td:first-child {
  font-family:var(--font-display);
  font-size:1.05rem;
}

.research-inventory {
  grid-column:1 / -1;
  padding:clamp(2rem,5vw,4rem) 0;
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
}
.research-inventory__head {
  display:grid;
  grid-template-columns:1fr 3fr;
  gap:var(--gutter);
  margin-bottom:2rem;
}
.research-inventory__list {
  margin:0;
  padding:0;
  list-style:none;
}
.research-inventory__list li {
  display:grid;
  grid-template-columns:3.5rem minmax(10rem,1fr) minmax(12rem,2fr);
  gap:1rem;
  padding:.8rem 0;
  border-top:1px solid var(--rule);
}
.research-inventory__list span { color:var(--case-accent); }
.research-inventory__list strong {
  font-family:var(--font-display);
  font-weight:400;
}
.research-inventory__list small { color:var(--ink-faint); }

@media (max-width:600px) {
  .signal-levels { grid-template-columns:repeat(3,minmax(0,1fr)); }
  .research-inventory__head { grid-template-columns:1fr; }
  .research-inventory__list li { grid-template-columns:2.5rem 1fr; }
  .research-inventory__list small { grid-column:2; }
}


/* ============================================
   SINAL V2 — impacto cromático e ritmo próprio
   ============================================ */

.case-theme-sinal {
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 16%, rgba(139,92,246,.12), transparent 24rem),
    radial-gradient(circle at 88% 38%, rgba(59,130,246,.07), transparent 26rem),
    var(--paper);
}

.case-theme-sinal::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .028;
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.75'/%3E%3C/svg%3E");
}

.case-theme-sinal .case-header {
  background:
    linear-gradient(135deg, rgba(139,92,246,.08), transparent 48%),
    rgba(245,243,238,.72);
}

.case-theme-sinal .case-header__title {
  position: relative;
  color: var(--ink);
}

.case-theme-sinal .case-header__title::after {
  content: "";
  display: block;
  width: clamp(4rem, 12vw, 10rem);
  height: .42rem;
  margin-top: 1.2rem;
  background: linear-gradient(
    90deg,
    var(--sinal-0) 0 16.6%,
    var(--sinal-1) 16.6% 33.2%,
    var(--sinal-2) 33.2% 49.8%,
    var(--sinal-3) 49.8% 66.4%,
    var(--sinal-4) 66.4% 83%,
    var(--sinal-5) 83% 100%
  );
}

.signal-spectrum {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0 calc(var(--gutter) * -1);
  padding: 0 var(--gutter);
  border-top: 1px solid var(--rule);
}

.signal-spectrum > div {
  min-width: 0;
  padding: 1rem .75rem 1.1rem;
  border-top: 4px solid var(--signal-color);
}

.signal-spectrum > div + div {
  border-left: 1px solid var(--rule);
}

.signal-spectrum strong {
  display: block;
  margin-bottom: .3rem;
  color: var(--signal-color);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  font-weight: 400;
  line-height: 1;
}

.signal-spectrum span {
  color: var(--ink-faint);
  font-size: var(--size-micro);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.case-theme-sinal .case-section--lead {
  position: relative;
  padding-left: clamp(1rem, 3vw, 2rem);
  border-left: 4px solid var(--case-accent);
}

.case-theme-sinal .case-section--lead::before {
  content: "CAPACIDADE DEIXA DE SER INVISÍVEL";
  display: block;
  margin-bottom: 1rem;
  color: var(--case-accent);
  font-size: .62rem;
  letter-spacing: .13em;
}

.case-theme-sinal .case-quote {
  max-width: 38ch;
  margin-left: auto;
  margin-right: auto;
  border-left-width: 4px;
  background: rgba(139,92,246,.045);
  padding: 1.5rem 1.5rem 1.5rem 1.75rem;
}

.case-theme-sinal .signal-table tr[data-level="0"] td:first-child { color:var(--sinal-0); }
.case-theme-sinal .signal-table tr[data-level="1"] td:first-child { color:var(--sinal-1); }
.case-theme-sinal .signal-table tr[data-level="2"] td:first-child { color:var(--sinal-2); }
.case-theme-sinal .signal-table tr[data-level="3"] td:first-child { color:var(--sinal-3); }
.case-theme-sinal .signal-table tr[data-level="4"] td:first-child { color:var(--sinal-4); }
.case-theme-sinal .signal-table tr[data-level="5"] td:first-child { color:var(--sinal-5); }

.case-theme-sinal .signal-table td:first-child {
  font-size: 1.35rem;
}

.signal-evidence {
  background: rgba(139,92,246,.035);
}

.signal-evidence .case-metric strong {
  color: var(--case-accent);
}

@media (max-width: 700px) {
  .signal-spectrum {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .signal-spectrum > div:nth-child(4) {
    border-left: 0;
  }
}