/* ============ PÁGINA DE IA (/inteligencia-artificial/) ============
   Depende de common.css (tokens, header/footer, .btn, .tag, .page-hero).
   Prefixo .ia-.
   ================================================================ */

.ia-sec{padding:92px 0;background:var(--paper);position:relative;overflow-x:clip}
.ia-soft{background:var(--paper-2)}
.ia-dark{background:radial-gradient(120% 100% at 20% 0%,#12283C 0%,#0A1826 45%,#050D16 100%);color:#fff}

.ia-head{max-width:780px;margin-bottom:44px}
.ia-head.ctr{margin-left:auto;margin-right:auto;text-align:center}
.ia-head.ctr .tag{justify-content:center}
.ia-head h2{
  font-family:var(--display);font-weight:700;
  font-size:clamp(26px,3.2vw,44px);line-height:1.06;letter-spacing:-.028em;
  color:var(--navy);margin:20px 0 0;
}
.ia-head p{font-size:16.5px;color:var(--ink-2);margin-top:18px;line-height:1.65;max-width:720px}
.ia-head.ctr p{margin-left:auto;margin-right:auto}
.ia-head.dk h2{color:#fff}
.ia-head.dk p{color:var(--ink-l)}

.ia-hero h1{font-size:clamp(28px,3.3vw,48px);max-width:960px}
.ia-hero .page-hero-sub{max-width:900px}
.ia-cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.ia-btn{margin-top:28px}

/* ---- Números de mercado ---- */
.ia-num-sec{padding:64px 0;background:var(--paper-2)}
.ia-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ia-nums-4{grid-template-columns:repeat(4,1fr);gap:18px}
.ia-nums-4 .ia-num b{font-size:clamp(30px,3.2vw,42px)}
.ia-nums-4 .ia-num span{font-size:13.5px}
.ia-num{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 24px}
.ia-num b{
  display:block;font-family:var(--display);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(34px,4vw,52px);line-height:1;color:var(--ignite);margin-bottom:12px;
}
.ia-num span{font-size:14.5px;line-height:1.55;color:var(--ink-2)}
.ia-fonte{margin-top:18px;font-size:12.5px;color:var(--ink-2)}

/* ---- As quatro frentes ---- */
.ia-frentes{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ia-frente{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:20px;padding:24px 22px;transition:border-color .22s,transform .22s,box-shadow .22s;
}
.ia-frente:hover{border-color:rgba(255,102,1,.5);transform:translateY(-3px);box-shadow:0 22px 44px -28px rgba(18,42,62,.45)}
.ia-frente-n{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--ignite);margin-bottom:14px}
.ia-frente h3{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.018em;color:var(--navy);margin-bottom:8px}
.ia-frente p{font-size:14px;line-height:1.55;color:var(--ink-2)}
.ia-go{
  margin-top:auto;padding-top:16px;font-size:13px;font-weight:600;color:var(--ignite-deep);
  display:inline-flex;align-items:center;gap:6px;
}
.ia-go::after{content:"";width:6px;height:6px;border-top:1.8px solid currentColor;border-right:1.8px solid currentColor;transform:rotate(45deg);transition:transform .2s}
.ia-frente:hover .ia-go::after{transform:translateX(3px) rotate(45deg)}

/* ---- Listas ---- */
.ia-list{list-style:none;display:flex;flex-direction:column}
.ia-list li{
  position:relative;padding:10px 0 10px 22px;font-size:14.5px;line-height:1.55;color:var(--ink-2);
  border-top:1px solid var(--line);
}
.ia-list li:first-child{border-top:none}
.ia-list li::before{content:"";position:absolute;left:2px;top:18px;width:7px;height:7px;border-radius:50%;background:var(--ignite)}
.ia-list b{color:var(--navy);font-weight:600}
.ia-list.dk li{color:var(--ink-l);border-top-color:rgba(255,255,255,.09)}
.ia-list.dk b{color:#fff}
.ia-note{margin-top:18px;font-size:13.5px;line-height:1.6;color:var(--ink-2)}
.ia-note.dk{color:rgba(255,255,255,.55)}

/* ---- Oktoply: texto + conversa ---- */
.ia-split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,56px);align-items:start}
.ia-chat{
  position:sticky;top:110px;background:#F2F5F8;border-radius:24px;overflow:hidden;color:var(--ink);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.7);
}
.ia-chat-bar{display:flex;align-items:center;gap:12px;padding:16px 18px;background:#fff;border-bottom:1px solid var(--line)}
.ia-chat-av{
  width:38px;height:38px;border-radius:50%;background:var(--ignite);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0;
}
.ia-chat-id{display:flex;flex-direction:column;line-height:1.3}
.ia-chat-id b{font-size:14.5px;color:var(--navy)}
.ia-chat-id i{font-style:normal;font-size:12px;color:#2E9E53}
.ia-chat-body{padding:16px 16px 8px;display:flex;flex-direction:column;gap:10px}
.ia-msg{max-width:86%;font-size:13.5px;line-height:1.5;padding:10px 13px;border-radius:16px}
.ia-msg.in{align-self:flex-end;background:var(--navy);color:#fff;border-bottom-right-radius:5px}
.ia-msg.out{align-self:flex-start;background:#fff;border-bottom-left-radius:5px;box-shadow:0 1px 0 rgba(18,42,62,.06)}
.ia-msg.sys{
  align-self:center;max-width:none;font-size:12px;font-weight:600;color:var(--ignite-deep);
  background:rgba(255,102,1,.1);border-radius:100px;padding:6px 12px;
}
.ia-chat-foot{display:block;padding:8px 18px 16px;font-size:11.5px;color:var(--ink-2)}

/* ---- Grades de card ---- */
.ia-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ia-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 22px}
.ia-card h3{font-family:var(--display);font-weight:600;font-size:17px;letter-spacing:-.015em;color:var(--navy);margin-bottom:8px}
.ia-card p{font-size:14px;line-height:1.58;color:var(--ink-2)}

/* ---- Planos do GEO ---- */
.ia-planos{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}
.ia-plano{border:1.4px dashed rgba(255,102,1,.45);border-radius:18px;padding:20px 22px;background:rgba(255,102,1,.04)}
.ia-plano b{display:block;font-family:var(--display);font-weight:700;font-size:17px;color:var(--navy);margin-bottom:8px}
.ia-plano span{font-size:13.5px;line-height:1.55;color:var(--ink-2)}

/* ---- Dois blocos ---- */
.ia-two{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.ia-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 28px 22px}
.ia-box h3{font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.02em;color:var(--navy);margin-bottom:12px}

/* ---- Passos ---- */
.ia-passos{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.ia-passos::before{content:"";position:absolute;left:0;right:0;top:8px;height:2px;background:linear-gradient(90deg,var(--ignite),rgba(255,102,1,.2))}
.ia-passos li{position:relative;padding-top:30px}
.ia-passos li::before{content:"";position:absolute;top:0;left:0;width:16px;height:16px;border-radius:50%;background:var(--paper-2);border:3px solid var(--ignite)}
.ia-when{display:block;font-size:12.5px;font-weight:600;color:var(--ignite-deep);margin-bottom:6px}
.ia-passos h3{font-family:var(--display);font-weight:600;font-size:18px;color:var(--navy);margin-bottom:6px}
.ia-passos p{font-size:14px;line-height:1.55;color:var(--ink-2)}

/* ---- FAQ ---- */
.ia-faq{max-width:840px;margin:0 auto}
.ia-faq details{background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden;transition:border-color .25s}
.ia-faq details[open]{border-color:rgba(255,102,1,.36)}
.ia-faq summary{
  font-family:var(--display);font-weight:600;font-size:16px;letter-spacing:-.01em;
  color:var(--navy);padding:20px 54px 20px 24px;cursor:pointer;position:relative;list-style:none;transition:color .2s;
}
.ia-faq summary::-webkit-details-marker{display:none}
.ia-faq summary:hover{color:var(--ignite)}
.ia-faq summary::after{
  content:"";position:absolute;right:26px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--ignite);border-bottom:2px solid var(--ignite);
  transform:translateY(-70%) rotate(45deg);transition:transform .28s;
}
.ia-faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.ia-faq details p{padding:0 24px 22px;font-size:14.5px;color:var(--ink-2);line-height:1.65}

/* ---- CTA ---- */
.ia-cta-sec{background:linear-gradient(148deg,var(--ignite),var(--ignite-deep));color:#fff}
.ia-cta-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.ia-cta-sec .tag.lt{color:rgba(255,255,255,.9)}
.ia-cta-sec .tag.lt::before{background:rgba(255,255,255,.9)}
.ia-cta-sec h2{font-family:var(--display);font-weight:700;font-size:clamp(26px,3vw,40px);line-height:1.06;letter-spacing:-.03em;color:#fff;margin:20px 0 18px}
.ia-cta-sec p{font-size:16px;line-height:1.68;color:rgba(255,255,255,.92)}

/* ---- Entrada em sequência dos cards das frentes ---- */
.ia-frentes.ia-anim .ia-frente{opacity:0;transform:translateY(14px)}
.ia-frentes.ia-anim.is-on .ia-frente{
  opacity:1;transform:none;
  transition:opacity .5s ease,transform .5s cubic-bezier(.16,1,.3,1);
  transition-delay:calc(var(--i) * 90ms);
}

/* ============ RESPONSIVO ============ */
@media(max-width:1100px){
  .ia-frentes{grid-template-columns:repeat(2,1fr)}
  .ia-grid3,.ia-planos{grid-template-columns:repeat(2,1fr)}
  .ia-passos{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .ia-passos::before{display:none}
}
@media(max-width:1024px){
  .ia-sec{padding:72px 0}
  .ia-split,.ia-two,.ia-cta-grid{grid-template-columns:1fr;gap:30px}
  .ia-chat{position:relative;top:auto;max-width:520px}
  .ia-nums,.ia-nums-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .ia-sec{padding:56px 0}
  .ia-frentes,.ia-grid3,.ia-planos,.ia-passos{grid-template-columns:1fr}
  .ia-nums,.ia-nums-4{grid-template-columns:1fr}
  .ia-cta-row .btn,.ia-cta-act .btn{width:100%;justify-content:center}
}
@media(prefers-reduced-motion:reduce){
  .ia-frentes.ia-anim .ia-frente{opacity:1;transform:none;transition:none}
}