/* Aicerne — identidade Operator Amber (mesma do e-book OPERAR.IA) */
:root{
  --ink:#0B0D10; --panel:#14171C; --card:#1B1F26;
  --paper:#FAFAF7; --muted:#9AA3AF;
  --amber:#D97706; --amber-strong:#F59E0B; --amber-ink:#FCD34D; --amber-tint:#2B2213;
  --line:rgba(250,250,247,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);color:var(--paper);
  font-family:'IBM Plex Sans',system-ui,sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;
}
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace}
.wrap{max-width:60rem;margin:0 auto;padding:0 1.25rem}
.narrow{max-width:44rem}

/* header */
header.site{border-bottom:1px solid var(--line);padding:1rem 0}
header.site .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.5rem}
.brand{display:inline-flex;align-items:center;gap:.55rem;font-family:'IBM Plex Mono',monospace;
  font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--paper);
  text-decoration:none;font-size:.95rem}
.brand::before{content:"";width:1.5em;height:1.5em;flex:0 0 auto;
  background:url("/assets/logo/aicerne-mark.svg") center/contain no-repeat}
.brand .dot{color:var(--amber-strong)}
nav{display:flex;flex-wrap:wrap;gap:1.1rem}
nav a{color:var(--muted);text-decoration:none;font-size:.85rem}
nav a:hover{color:var(--amber-ink)}

/* hero */
.hero{padding:4.5rem 0 3.5rem;text-align:center}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;
  text-align:left;padding:4.2rem 0 3.2rem}
.hero-grid .hero-copy{max-width:34rem}
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;text-align:center;gap:2rem}
  .hero-grid .cover{margin:0 auto}
  .hero-grid .hero-copy{margin:0 auto}
}
.badge{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--amber-strong)}
h1{font-size:clamp(1.9rem,4.5vw,2.9rem);line-height:1.12;letter-spacing:-.02em;
  font-weight:700;margin:1rem auto .9rem;max-width:46rem}
.hero .sub,.hero-grid .sub{margin-bottom:1.6rem}
.sub{color:var(--muted);font-size:1.12rem;max-width:40rem;margin-left:auto;margin-right:auto}
.sub strong{color:var(--paper)}
.specs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.8rem}
.hero-grid .specs{justify-content:flex-start}
@media(max-width:980px){.hero-grid .specs{justify-content:center}}
.spec{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--amber-ink);background:var(--amber-tint);
  border:1px solid rgba(217,119,6,.4);border-radius:999px;padding:.4em 1em}
.cover{width:100%;max-width:320px;height:auto;border-radius:10px;border:1px solid var(--line);
  box-shadow:0 24px 70px rgba(0,0,0,.55);display:block;
  transform:rotate(1.5deg);transition:transform .25s}
.cover:hover{transform:rotate(0deg) scale(1.02)}
/* selo de fundadores */
.founders{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.7rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ink);font-weight:600;
  background:var(--amber-strong);border-radius:999px;padding:.45em 1.2em;margin-bottom:1rem}
/* checklist com marcador âmbar */
ul.check{list-style:none;margin-left:0}
ul.check li{padding-left:1.7rem;position:relative;margin:.65rem 0}
ul.check li::before{content:"✓";position:absolute;left:0;top:0;
  color:var(--amber-strong);font-weight:700}

/* botões */
.btn{display:inline-block;background:var(--amber-strong);color:var(--ink);font-weight:700;
  padding:1rem 2.2rem;border-radius:8px;text-decoration:none;font-size:1.05rem;
  letter-spacing:.01em;transition:transform .1s,background .15s}
.btn:hover{background:#FBBF24;transform:translateY(-1px)}
.btn.ghost{background:transparent;border:1px solid var(--amber);color:var(--amber-ink)}
.micro{font-size:.78rem;color:var(--muted);margin-top:.7rem}

/* seções */
section{padding:3.2rem 0;border-top:1px solid var(--line)}
h2{font-size:1.6rem;letter-spacing:-.01em;margin-bottom:1.1rem}
h2 .dot{color:var(--amber-strong)}
h3{font-size:1.05rem;margin:1.4rem 0 .5rem;color:var(--amber-ink)}
p{margin-bottom:1rem;color:#D5D9DE}
p strong{color:var(--paper)}
ul{margin:0 0 1rem 1.3rem;color:#D5D9DE}
li{margin:.45rem 0}
li strong{color:var(--paper)}

/* cards e chips */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem;margin:1.4rem 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1.3rem}
.card h3{margin-top:0}
.chip{font-family:'IBM Plex Mono',monospace;font-size:.82em;background:var(--amber-tint);
  color:var(--amber-ink);border:1px solid rgba(217,119,6,.45);border-radius:5px;
  padding:.1em .5em;white-space:nowrap}
.callout{background:var(--amber-tint);border-left:4px solid var(--amber);
  border-radius:0 8px 8px 0;padding:1.1rem 1.3rem;margin:1.5rem 0}
.callout p{margin:0;color:var(--paper)}

/* preço */
.price-box{background:linear-gradient(160deg,var(--card),var(--panel));
  border:1px solid var(--amber);border-radius:16px;
  padding:2.4rem 2.2rem;text-align:center;max-width:27rem;margin:1.8rem auto;
  box-shadow:0 12px 50px rgba(217,119,6,.12)}
.price-regular{color:var(--muted);font-size:.9rem;margin-bottom:.15rem}
.price-regular strong{color:var(--paper)}
.price{font-size:3rem;font-weight:700;color:var(--amber-ink);margin:.1rem 0 .4rem;
  letter-spacing:-.02em}
.price-note{font-size:.85rem;color:var(--muted);margin-bottom:1.4rem}

/* faq */
details{border:1px solid var(--line);border-radius:8px;margin:.6rem 0;background:var(--panel)}
summary{cursor:pointer;padding:.9rem 1.1rem;font-weight:600;color:var(--paper)}
details p{padding:0 1.1rem 1rem}

/* tabela */
table{border-collapse:collapse;width:100%;margin:1.2rem 0;font-size:.95rem}
th,td{border:1px solid var(--line);padding:.6rem .8rem;text-align:left;vertical-align:top}
th{background:var(--amber-tint);color:var(--amber-ink)}

footer{border-top:1px solid var(--line);padding:2.2rem 0;text-align:center;
  color:var(--muted);font-size:.82rem}
footer a{color:var(--amber-ink);text-decoration:none}
.center{text-align:center}


/* ── acessibilidade ── */
:focus-visible{outline:2px solid var(--amber-strong);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--amber-strong);color:var(--ink);
  padding:.6em 1.2em;font-weight:700;z-index:99;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* ── prova do mecanismo (antes/depois) ── */
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.5rem 0}
@media(max-width:720px){.proof-grid{grid-template-columns:1fr}}
.chat{border-radius:10px;padding:1.2rem;border:1px solid var(--line);font-size:.93rem}
.chat .who{font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.14em;
  text-transform:uppercase;margin-bottom:.6rem;display:block}
.chat.bad{background:var(--panel)}
.chat.bad .who{color:var(--muted)}
.chat.good{background:var(--amber-tint);border-color:rgba(217,119,6,.45)}
.chat.good .who{color:var(--amber-strong)}
.chat p{margin:0;color:var(--paper);font-style:italic}


/* ── formulários de lead ── */
.lead-form{max-width:26rem;margin:0 auto;text-align:left;display:grid;gap:.9rem}
.hero-grid .lead-form{margin:0}
.lead-form label{display:block;font-size:.85rem;color:var(--muted);font-family:'IBM Plex Mono',monospace}
.lead-form .opt{opacity:.6;text-transform:none;letter-spacing:0}
.lead-form input{width:100%;margin-top:.35rem;background:var(--panel);border:1px solid var(--line);
  border-radius:8px;padding:.75rem .9rem;color:var(--paper);font-size:1rem;font-family:'IBM Plex Sans',sans-serif}
.lead-form input:focus{border-color:var(--amber);outline:none}
.lead-form select{margin-top:.35rem;background:var(--panel);border:1px solid var(--line);
  border-radius:8px;padding:.75rem .9rem;color:var(--paper);font-size:1rem;font-family:'IBM Plex Sans',sans-serif}
.lead-form select:focus{border-color:var(--amber);outline:none}
.lead-form select option{background:var(--panel);color:var(--paper)}
.lead-form .btn{width:100%;border:none;cursor:pointer;font-family:'IBM Plex Sans',sans-serif}
.lead-form .btn:disabled{opacity:.45;cursor:not-allowed}

/* subnav do produto (dentro de /operar-ia/*) */
.subnav{background:var(--panel);border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;flex-wrap:wrap;gap:1.3rem;padding:.65rem 1.25rem}
.subnav a{color:var(--muted);font-size:.85rem;text-decoration:none;font-family:'IBM Plex Mono',monospace;letter-spacing:.03em}
.subnav a:hover{color:var(--paper)}
.subnav a.active{color:var(--amber-ink);font-weight:600}