/* IAX — design system
   Paleta e tipografia herdadas do design aprovado (Claude Design, IAX Home v3).
   Uma folha só: home, blog, diagnóstico e painel usam esta base. */

:root{
  --paper:#EDEDEA;        /* fundo */
  --surface:#F4F4F0;      /* cartão claro */
  --surface-2:#E6E6E1;    /* cartão claro afundado */
  --ink:#0A0A0A;          /* texto */
  --ink-2:#57574F;        /* texto secundário */
  --ink-3:#6E6E66;        /* apoio */
  --ink-4:#67675F;        /* legenda */
  --line:#D7D7D0;         /* borda */
  --lime:#DEF56E;         /* acento da marca */
  --lime-2:#D6EF5B;       /* acento pressionado */
  --lime-soft:#E8FA92;
  --dark:#0C0C0B;         /* seções escuras */
  --dark-2:#161614;
  --dark-line:rgba(255,255,255,.10);

  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px; --r-pill:9999px;
  --pad:clamp(20px,5vw,64px);
  --maxw:1240px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Hanken Grotesk","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease)}
button{font:inherit;cursor:pointer;font-family:inherit;border:0;background:none;color:inherit}
::selection{background:var(--lime);color:var(--ink)}

/* ---------- tipografia ---------- */
.serif{font-family:"Instrument Serif",Georgia,serif;font-weight:400}
h1,h2,h3,h4{margin:0;font-weight:400;letter-spacing:-.02em;line-height:1.04}
h1{font-size:clamp(40px,7.2vw,86px)}
h2{font-size:clamp(30px,4.6vw,56px)}
h3{font-size:clamp(20px,2.2vw,27px);letter-spacing:-.015em}
p{margin:0;line-height:1.55}

.eyebrow{
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-4);font-weight:500;
}
.lead{font-size:clamp(16px,1.5vw,19px);color:var(--ink-2);line-height:1.6}
.muted{color:var(--ink-3)}
.small{font-size:13px;color:var(--ink-4)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.sec{padding:clamp(72px,10vw,140px) 0}
.sec-head{max-width:720px;margin-bottom:clamp(36px,5vw,64px)}
.sec-head h2{margin:14px 0 18px}
.rule{height:1px;background:var(--line);border:0;margin:0}
.grid{display:grid;gap:clamp(14px,1.6vw,22px)}
@media(min-width:760px){
  .g-2{grid-template-columns:repeat(2,1fr)}
  .g-3{grid-template-columns:repeat(3,1fr)}
  .g-4{grid-template-columns:repeat(4,1fr)}
}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:15px 22px;border-radius:var(--r-pill);
  font-size:15px;line-height:1;white-space:nowrap;
  transition:transform .3s var(--ease-out),box-shadow .3s var(--ease),background .25s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 1px 0 rgba(10,10,10,.08),0 12px 30px -14px rgba(10,10,10,.5)}
.btn-primary:hover{background:var(--lime-2);box-shadow:0 1px 0 rgba(10,10,10,.08),0 18px 40px -16px rgba(10,10,10,.55)}
.btn-ghost{background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.btn-ghost:hover{background:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn .dot{
  width:26px;height:26px;border-radius:var(--r-pill);display:grid;place-items:center;
  background:var(--ink);color:var(--lime);font-size:13px;flex:none;
}
.btn-primary .dot{background:var(--ink);color:var(--lime)}
.btn-dark .dot{background:var(--lime);color:var(--ink)}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-2)}
.link-arrow:hover{color:var(--ink)}
.link-arrow svg{transition:transform .3s var(--ease-out)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- cartões ---------- */
.card{
  background:var(--surface);border-radius:var(--r-lg);
  box-shadow:inset 0 0 0 1px var(--line);
  overflow:hidden;
}
.card-dark{background:var(--dark);color:#fff;box-shadow:inset 0 0 0 1px var(--dark-line)}
.card-pad{padding:clamp(22px,2.6vw,34px)}

/* ---------- reveal (nunca deixa conteúdo invisível se o JS falhar) ---------- */
.rv{opacity:1;transform:none}
html.js .rv{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
html.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html.js .rv{opacity:1!important;transform:none!important;transition:none}
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* ---------- topbar + nav ---------- */
.topbar{
  background:var(--ink);color:#fff;font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;padding:9px 0;position:relative;z-index:60;
}
.topbar .wrap{display:flex;gap:26px;justify-content:center;align-items:center;flex-wrap:wrap}
.topbar span{color:rgba(255,255,255,.62)}
.topbar .on{color:var(--lime)}

.nav{position:sticky;top:0;z-index:50;padding:14px 0;transition:background .3s var(--ease),box-shadow .3s var(--ease)}
.nav.stuck{background:rgba(237,237,234,.86);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px}
.brand{font-family:"Instrument Serif",Georgia,serif;font-size:27px;letter-spacing:.01em;line-height:1}
.brand b{font-weight:400;color:var(--ink)}
.brand i{font-style:normal;color:var(--lime);-webkit-text-stroke:.6px var(--ink-3)}
.nav-links{display:none;gap:4px;margin-left:auto;background:var(--surface);
  box-shadow:inset 0 0 0 1px var(--line);border-radius:var(--r-pill);padding:6px}
.nav-links a{padding:9px 15px;border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-2)}
.nav-links a:hover{background:#fff;color:var(--ink)}
.nav-cta{margin-left:auto;display:flex;gap:10px;align-items:center}
@media(min-width:1080px){
  .nav-links{display:flex}
  .nav-cta{margin-left:0}
}
.burger{width:44px;height:44px;border-radius:var(--r-pill);background:var(--surface);
  box-shadow:inset 0 0 0 1px var(--line);display:grid;place-items:center}
@media(min-width:1080px){.burger{display:none}}
.nav-sheet{
  position:fixed;inset:0;z-index:70;background:var(--paper);padding:24px var(--pad);
  display:none;flex-direction:column;gap:6px;
}
.nav-sheet.open{display:flex}
.nav-sheet a{padding:16px 0;font-size:24px;border-bottom:1px solid var(--line)}

/* ---------- barra fixa (dispensável) ---------- */
.dock{
  position:fixed;left:50%;transform:translateX(-50%) translateY(140%);
  bottom:18px;z-index:65;width:min(560px,calc(100% - 28px));
  background:var(--dark);color:#fff;border-radius:var(--r-lg);
  box-shadow:0 24px 60px -20px rgba(0,0,0,.6);
  transition:transform .5s var(--ease-out),opacity .35s var(--ease);
  opacity:0;pointer-events:none;
}
.dock.show{transform:translateX(-50%) translateY(0);opacity:1;pointer-events:auto}
.dock.dismissed{display:none}
.dock-in{display:flex;align-items:center;gap:14px;padding:14px 16px}
.dock-txt{flex:1;min-width:0}
.dock-txt b{display:block;font-weight:400;font-size:15px}
.dock-txt span{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.5)}
.dock-close{
  width:32px;height:32px;border-radius:var(--r-pill);flex:none;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.75);
}
.dock-close:hover{background:rgba(255,255,255,.16);color:#fff}

/* ---------- formulários ---------- */
.field{display:block;margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:8px}
.input{
  width:100%;padding:15px 16px;border-radius:var(--r-md);
  background:var(--surface);box-shadow:inset 0 0 0 1px var(--line);
  font-size:16px;color:var(--ink);transition:box-shadow .25s var(--ease),background .25s var(--ease);
  border:0;outline:0;
}
.input:focus{background:#fff;box-shadow:inset 0 0 0 2px var(--ink)}
.input::placeholder{color:var(--ink-4)}
select.input{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E6E66' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center}
.choices{display:grid;gap:10px}
@media(min-width:620px){.choices.c2{grid-template-columns:1fr 1fr}}
.choice{
  padding:15px 16px;border-radius:var(--r-md);background:var(--surface);
  box-shadow:inset 0 0 0 1px var(--line);text-align:left;font-size:15px;
  transition:box-shadow .2s var(--ease),background .2s var(--ease),transform .2s var(--ease-out);
}
.choice:hover{background:#fff;transform:translateY(-1px)}
.choice.sel{background:var(--lime);box-shadow:inset 0 0 0 2px var(--ink)}
.err{color:#B03A2E;font-size:13px;margin-top:8px;min-height:18px}
.ok-msg{color:#3E6B4F;font-size:14px}

/* ---------- rodapé ---------- */
.foot{background:var(--dark);color:#fff;padding:clamp(56px,8vw,96px) 0 40px}
.foot a:not(.btn){color:rgba(255,255,255,.66)}
.foot a:not(.btn):hover{color:#fff}
.foot .btn-primary,.foot .btn-primary:hover{color:var(--ink)}
.foot h2{max-width:15ch}
.foot-cols{display:grid;gap:32px;margin-top:56px}
@media(min-width:760px){.foot-cols{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-cols h4{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.42);margin-bottom:16px;font-weight:500}
.foot-cols li{list-style:none;margin-bottom:11px;font-size:15px}
.foot-cols ul{margin:0;padding:0}
.foot-bar{margin-top:56px;padding-top:24px;border-top:1px solid var(--dark-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.42)}