/* v3: página /tecnologia — mapa da stack interativo (substitui o padrão 01/02/03/04). */
/* Escopo: tudo sob .v3-tech, para não vazar para outras páginas. */

.v3-tech .page-intro { border-bottom: 0; padding-bottom: 40px; }
.v3-tech .page-intro h1 { max-width: 16ch; }

/* ---------- Mapa da stack ---------- */

.v3-tech .stack-map {
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 34px;
  background: var(--bg-2);
}

.v3-tech .stack-tablist {
  position: relative;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
}

.v3-tech .stack-line {
  position: absolute;
  inset: 0;
  width: 26px;
  height: 100%;
  pointer-events: none;
}
.v3-tech .stack-line-rail { stroke: var(--border); stroke-width: 1.4; }
.v3-tech .stack-dot {
  fill: var(--bg-2);
  stroke: var(--muted);
  stroke-width: 1.4;
  transition: fill .3s ease, stroke .3s ease, r .3s ease;
}

.v3-tech .stack-tablist button {
  position: relative;
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: center;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
  text-align: left;
  padding: 22px 20px 22px 46px;
  cursor: pointer;
}
.v3-tech .stack-tablist button:last-child { border-bottom: 0; }
.v3-tech .stack-tablist button:hover { background: var(--bg); }
.v3-tech .stack-tablist button[aria-selected="true"] { background: var(--accent-soft); }
.v3-tech .stack-tablist button[aria-selected="true"]::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--accent);
}
.v3-tech .stack-tab-index { font: 11px var(--font-mono); color: var(--muted); transition: color .3s ease; }
.v3-tech .stack-tablist button[aria-selected="true"] .stack-tab-index { color: var(--accent); }
.v3-tech .stack-tab-copy b { display: block; font-size: 15px; font-weight: 600; margin-bottom: 3px; }
.v3-tech .stack-tab-copy small { display: block; font-size: 12px; color: var(--fg-2); }

/* Camada ativa acende o ponto correspondente na linha (progressive enhancement). */
.v3-tech .stack-tablist:has(#interface[aria-selected="true"]) .stack-dot[data-dot="interface"],
.v3-tech .stack-tablist:has(#aplicacao[aria-selected="true"]) .stack-dot[data-dot="aplicacao"],
.v3-tech .stack-tablist:has(#dados[aria-selected="true"]) .stack-dot[data-dot="dados"],
.v3-tech .stack-tablist:has(#ia[aria-selected="true"]) .stack-dot[data-dot="ia"],
.v3-tech .stack-tablist:has(#integracoes[aria-selected="true"]) .stack-dot[data-dot="integracoes"] {
  fill: var(--accent);
  stroke: var(--accent);
  r: 4.4;
}

.v3-tech .stack-panels {
  position: relative;
  padding: 40px;
  min-height: 320px;
  background: radial-gradient(ellipse at 100% 0%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 60%);
}
.v3-tech .stack-panel .eyebrow { margin-bottom: 20px; }
.v3-tech .stack-panel > p:not(.eyebrow) { max-width: 56ch; color: var(--fg-2); font-size: 15px; }
.v3-tech .stack-panel .tech-tags { margin: 24px 0; }
.v3-tech .stack-panel:not([hidden]) { animation: stackPanelIn .35s ease; }
@keyframes stackPanelIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- Como isso vira produto ---------- */

.v3-tech .stack-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 34px;
}
.v3-tech .stack-proof-card {
  display: block;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-2);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.v3-tech .stack-proof-card:hover {
  text-decoration: none;
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 18px 40px color-mix(in srgb, var(--accent) 12%, transparent);
}
.v3-tech .stack-proof-image { display: block; aspect-ratio: 16/10; overflow: hidden; background: var(--bg); }
.v3-tech .stack-proof-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.v3-tech .stack-proof-card:hover .stack-proof-image img { transform: scale(1.04); }
.v3-tech .stack-proof-copy { display: block; padding: 22px; }
.v3-tech .stack-proof-copy b { display: block; font-size: 17px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 8px; }
.v3-tech .stack-proof-copy span { display: block; font-size: 14px; line-height: 1.55; color: var(--fg-2); }

/* ---------- Fechamento ---------- */

.v3-tech .stack-close { border-top: 1px solid var(--border); }
.v3-tech .stack-close h2 { max-width: 14ch; }

/* ---------- Responsivo ---------- */

@media (max-width: 960px) {
  .v3-tech .stack-map { grid-template-columns: minmax(0, 300px) minmax(0, 1fr); }
  .v3-tech .stack-panels { padding: 32px; }
}

@media (max-width: 720px) {
  .v3-tech .stack-map { grid-template-columns: 1fr; }
  .v3-tech .stack-tablist { border-right: 0; border-bottom: 1px solid var(--border); }
  .v3-tech .stack-tablist button { padding: 18px 18px 18px 42px; }
  .v3-tech .stack-panels { padding: 26px; min-height: 0; }
  .v3-tech .stack-proof-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .v3-tech .stack-panel:not([hidden]) { animation: none; }
  .v3-tech .stack-proof-card,
  .v3-tech .stack-proof-image img,
  .v3-tech .stack-dot,
  .v3-tech .stack-tab-index {
    transition: none;
  }
}