/* Soluções: painéis expansíveis com demonstração animada */
.paineis { width: 100%; max-width: var(--largura); display: grid; gap: 12px; }
.pn { position: relative; border-radius: 22px; border: 1px solid var(--linha); overflow: hidden;
  background: linear-gradient(180deg, rgb(14 20 36 / .92), rgb(8 12 22 / .95)); transition: border-color .4s, box-shadow .5s; }
.pn.is-ativo { border-color: rgb(0 212 255 / .4); box-shadow: 0 30px 80px -40px rgb(0 107 255 / .6); }
.pn-cab { all: unset; box-sizing: border-box; display: flex; align-items: center; gap: 14px; width: 100%; height: 68px; padding: 0 22px; cursor: pointer; }
.pn-cab:focus-visible { outline: 2px solid var(--acento); outline-offset: -4px; border-radius: 22px; }
.pn-n { font: 600 12px/1 var(--fonte-titulo); letter-spacing: .15em; color: var(--acento); }
.pn-curto { font: 700 17px var(--fonte-titulo); color: var(--texto); }
.pn-icone { display: grid; place-items: center; width: 40px; height: 40px; margin-left: auto; border-radius: 12px; border: 1px solid rgb(0 212 255 / .3);
  background: linear-gradient(145deg, rgb(0 212 255 / .12), rgb(138 43 226 / .12)); }
.pn-icone svg { width: 22px; height: 22px; fill: none; stroke: var(--acento); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.pn-corpo { display: none; flex-direction: column; gap: 22px; padding: 0 20px 24px; }
.pn.is-ativo .pn-corpo { display: flex; }
.pn-demo { height: 230px; }
.pn-texto h3 { font-size: clamp(22px, 2.6vw, 30px); letter-spacing: -.02em; line-height: 1.15; margin: 0; }
.pn-texto p { margin: 12px 0 0; color: var(--texto-suave); font-size: 15.5px; max-width: 62ch; }
.pn-lista { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 8px 22px; margin: 20px 0 24px; }
.pn-lista li { display: flex; align-items: center; gap: 9px; font-size: 14.5px; color: var(--texto); }
.pn-lista svg { flex: none; width: 14px; height: 14px; fill: none; stroke: var(--acento); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

@media (min-width: 900px) {
  .paineis { display: flex; height: clamp(580px, 82vh, 650px); }
  .pn { flex: 1 1 0; min-width: 0; transition: flex .7s cubic-bezier(.22, 1, .36, 1), border-color .4s, box-shadow .5s; }
  .pn.is-ativo { flex: 5.2 1 0; }
  .pn-cab { position: absolute; inset: 0 0 auto 0; z-index: 2; }
  .pn:not(.is-ativo) .pn-cab { inset: 0; height: 100%; flex-direction: column; justify-content: space-between; align-items: center; padding: 22px 0; }
  .pn:not(.is-ativo) .pn-icone { margin-left: 0; }
  .pn:not(.is-ativo) .pn-curto { flex: 1; display: flex; align-items: center; justify-content: center; writing-mode: vertical-rl; transform: rotate(180deg); font-size: 21px; color: var(--texto-suave); transition: color .3s; }
  .pn:not(.is-ativo):hover .pn-curto { color: var(--texto); }
  .pn.is-ativo .pn-curto { font: 500 11.5px var(--fonte-titulo); letter-spacing: .2em; text-transform: uppercase; color: var(--texto-suave); }
  .pn-corpo { display: flex; position: absolute; top: 68px; left: 0; bottom: 0; width: clamp(480px, 58vw, 700px); padding: 0 26px 26px; opacity: 0; visibility: hidden; transition: opacity .3s, visibility 0s .3s; }
  .pn.is-ativo .pn-corpo { opacity: 1; visibility: visible; transition: opacity .5s .25s, visibility 0s; }
}

/* mini-demonstrações */
.demo { height: 100%; border: 1px solid rgb(148 163 184 / .3); border-radius: 14px; background: rgb(5 8 16 / .72); overflow: hidden; }
.demo-barra { display: flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px; border-bottom: 1px solid var(--linha); }
.demo-barra i { width: 8px; height: 8px; border-radius: 50%; background: rgb(148 163 184 / .3); }
.demo-barra span { margin-left: 8px; font: 500 11px var(--fonte-texto); letter-spacing: .04em; color: var(--texto-suave); }
.demo-pagina { display: grid; gap: 9px; padding: 14px; }
.blk { display: block; border-radius: 7px; background: rgb(148 163 184 / .14); }
.blk--nav { height: 14px; }
.blk--hero { height: 70px; background: linear-gradient(110deg, rgb(0 212 255 / .3), rgb(0 107 255 / .28), rgb(138 43 226 / .3)); }
.demo-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.blk--c1, .blk--c2, .blk--c3 { height: 50px; }
.blk--cta { width: 96px; height: 22px; border-radius: 999px; background: linear-gradient(100deg, var(--acento-2), var(--roxo)); }
.carrinho { position: relative; margin-left: auto; display: grid; place-items: center; color: var(--acento); }
.cn { position: absolute; top: -7px; right: -9px; min-width: 14px; height: 14px; border-radius: 7px; background: var(--roxo); color: #fff; font: 600 11px/14px var(--fonte-titulo); text-align: center; opacity: 0; }
.cn3 { opacity: 1; }
.demo-vitrine { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 14px; }
.prod { display: grid; gap: 7px; padding: 8px; border: 1px solid var(--linha); border-radius: 11px; }
.prod-img { height: 72px; border-radius: 8px; background: linear-gradient(135deg, rgb(0 212 255 / .28), rgb(138 43 226 / .3)); }
.prod--2 .prod-img { background: linear-gradient(135deg, rgb(0 107 255 / .35), rgb(0 212 255 / .2)); }
.prod--3 .prod-img { background: linear-gradient(135deg, rgb(138 43 226 / .35), rgb(0 107 255 / .25)); }
.prod-l1, .prod-l2 { display: block; height: 7px; border-radius: 4px; background: rgb(148 163 184 / .22); }
.prod-l2 { width: 55%; }
.prod-btn { padding: 5px 0; border-radius: 999px; text-align: center; font: 600 11px var(--fonte-titulo); color: #fff; background: linear-gradient(100deg, var(--acento-2), var(--roxo)); }
.chat { display: grid; gap: 10px; align-content: start; padding: 16px; }
.bub { margin: 0; max-width: 84%; padding: 10px 14px; border-radius: 15px; font-size: 13.5px; line-height: 1.45; color: var(--texto); }
.bub--user { justify-self: end; background: rgb(0 107 255 / .35); border: 1px solid rgb(0 107 255 / .55); border-bottom-right-radius: 4px; }
.bub--bot, .bub--digitando { grid-area: 3 / 1; justify-self: start; background: rgb(138 43 226 / .22); border: 1px solid rgb(138 43 226 / .5); border-bottom-left-radius: 4px; }
.bub--digitando { display: flex; gap: 5px; align-items: center; height: 40px; opacity: 0; }
.bub--digitando span { width: 6px; height: 6px; border-radius: 50%; background: var(--texto-suave); }
.demo--fluxo svg { width: 100%; height: 100%; padding: 10px 14px; }
.fx-trilha { fill: none; stroke: rgb(148 163 184 / .3); stroke-width: 1.5; }
.fx-pulso { fill: none; stroke: url(#fluxo-g); stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 30 200; }
.fx-no rect { fill: rgb(10 15 28 / .95); stroke: rgb(0 212 255 / .4); stroke-width: 1.2; }
.fx-no text { fill: var(--texto); font: 600 13px var(--fonte-titulo); }

@media (prefers-reduced-motion: no-preference) {
  .pn.is-ativo .blk { animation: monta 7s ease infinite backwards; }
  .pn.is-ativo .blk--hero { animation-delay: .5s; }
  .pn.is-ativo .blk--c1 { animation-delay: 1s; }
  .pn.is-ativo .blk--c2 { animation-delay: 1.2s; }
  .pn.is-ativo .blk--c3 { animation-delay: 1.4s; }
  .pn.is-ativo .blk--cta { animation-delay: 1.9s; }
  @keyframes monta { 0%, 6% { opacity: 0; transform: translateY(12px) scaleY(.6); } 16%, 86% { opacity: 1; transform: none; } 96%, 100% { opacity: 0; transform: translateY(-6px); } }
  .pn.is-ativo .prod { animation: escolhe 6s ease infinite; }
  .pn.is-ativo .prod--2 { animation-delay: 2s; }
  .pn.is-ativo .prod--3 { animation-delay: 4s; }
  @keyframes escolhe { 0%, 30%, 100% { transform: none; border-color: var(--linha); } 8%, 22% { transform: translateY(-5px); border-color: rgb(0 212 255 / .7); box-shadow: 0 12px 24px -10px rgb(0 212 255 / .5); } }
  .pn.is-ativo .cn1 { animation: b1 6s step-end infinite; }
  .pn.is-ativo .cn2 { animation: b2 6s step-end infinite; }
  .pn.is-ativo .cn3 { animation: b3 6s step-end infinite; }
  @keyframes b1 { 0% { opacity: 1; } 33%, 100% { opacity: 0; } }
  @keyframes b2 { 0%, 32% { opacity: 0; } 33% { opacity: 1; } 66%, 100% { opacity: 0; } }
  @keyframes b3 { 0%, 65% { opacity: 0; } 66%, 100% { opacity: 1; } }
  .pn.is-ativo .bub--user { animation: cUser 10s ease infinite; }
  .pn.is-ativo .bub--digitando { animation: cDig 10s ease infinite; }
  .pn.is-ativo .bub--bot { animation: cBot 10s ease infinite; }
  .bub--digitando span { animation: ponto 1s ease-in-out infinite; }
  .bub--digitando span:nth-child(2) { animation-delay: .15s; }
  .bub--digitando span:nth-child(3) { animation-delay: .3s; }
  @keyframes cUser { 0%, 3% { opacity: 0; transform: translateY(8px); } 8%, 94% { opacity: 1; transform: none; } 100% { opacity: 0; } }
  @keyframes cDig { 0%, 18% { opacity: 0; } 22%, 36% { opacity: 1; } 40%, 100% { opacity: 0; } }
  @keyframes cBot { 0%, 38% { opacity: 0; transform: translateY(8px); } 44%, 94% { opacity: 1; transform: none; } 100% { opacity: 0; } }
  @keyframes ponto { 50% { transform: translateY(-4px); opacity: .5; } }
  .pn.is-ativo .fx-pulso { animation: corre 2.6s linear infinite; }
  .pn.is-ativo .fx-pulso--b { animation-delay: -1.3s; }
  @keyframes corre { from { stroke-dashoffset: 230; } to { stroke-dashoffset: 0; } }
  .pn.is-ativo .fx-no { animation: no 3.6s ease-in-out infinite; }
  @keyframes no { 0%, 100% { opacity: .7; } 20% { opacity: 1; } }
}
@media (prefers-reduced-motion: reduce) {
  .bub--digitando { display: none; }
  .bub--bot { grid-area: auto; }
  .fx-pulso { stroke-dasharray: none; }
}