/* ==========================================================================
   Aily Arquitetura — folha de estilo única
   Sumário:
   01. Tokens (cores, tipografia, espaçamento)
   02. Reset e base
   03. Tipografia e utilitários de texto
   04. Layout (container, grid, seções)
   05. Cabeçalho e navegação
   06. Botões e links
   07. Placeholders de imagem
   08. Hero
   09. Projetos
   10. Serviços, processo, números
   11. Sobre / equipe
   12. Diário (blog)
   13. Contato e formulário
   14. Rodapé e WhatsApp flutuante
   15. Animações e responsivo final
   ========================================================================== */

/* 01. Tokens ------------------------------------------------------------- */
:root{
  --paper:#f7f5f2;
  --paper-2:#efebe5;
  --paper-3:#e6e1d9;
  --ink:#16171a;
  --ink-2:#50555c;
  --ink-3:#8b9099;
  --line:rgba(22,23,26,.13);
  --line-2:rgba(22,23,26,.28);
  --accent:#a6543a;
  --accent-soft:rgba(166,84,58,.10);

  --f-display:"Instrument Serif",Georgia,"Times New Roman",serif;
  --f-sans:"Inter","Helvetica Neue",Arial,system-ui,-apple-system,sans-serif;

  --max:1280px;
  --gut:clamp(20px,5vw,72px);
  --sec:clamp(72px,11vw,160px);

  --ease:cubic-bezier(.22,.61,.36,1);
  --radius:2px;
}

@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#121312;
    --paper-2:#1a1b1a;
    --paper-3:#232422;
    --ink:#ece9e4;
    --ink-2:#a9a5a0;
    --ink-3:#78756f;
    --line:rgba(236,233,228,.14);
    --line-2:rgba(236,233,228,.3);
    --accent:#d1795a;
    --accent-soft:rgba(209,121,90,.12);
  }
}

/* 02. Reset e base ------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--f-sans);
  font-size:clamp(15px,.55vw + 14px,17px);
  line-height:1.65;
  font-feature-settings:"cv11","ss01";
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}

img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit}
button{font:inherit;color:inherit}
hr{border:0;border-top:1px solid var(--line);margin:0}

::selection{background:var(--accent);color:var(--paper)}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:var(--radius);
}

.skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:var(--paper);
  padding:.75rem 1.25rem;font-size:.85rem;
}
.skip:focus{left:.5rem;top:.5rem}

/* 03. Tipografia --------------------------------------------------------- */
h1,h2,h3,h4{
  font-family:var(--f-display);
  font-weight:400;
  letter-spacing:-.02em;
  line-height:1.03;
  margin:0;
  text-wrap:balance;
}
h1{font-size:clamp(2.7rem,8.4vw,6.6rem)}
h2{font-size:clamp(2rem,4.6vw,3.6rem)}
h3{font-size:clamp(1.35rem,2.1vw,1.9rem);line-height:1.15}
h4{font-size:1.1rem;line-height:1.25}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}

.eyebrow{
  font-size:.7rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--ink-3);
  margin:0 0 1.5rem;
  display:flex;align-items:center;gap:.9rem;
  font-weight:500;
}
.eyebrow::before{
  content:"";width:clamp(24px,4vw,56px);height:1px;
  background:var(--line-2);flex:none;
}
.lead{
  font-size:clamp(1.1rem,1.5vw,1.4rem);
  line-height:1.5;
  color:var(--ink-2);
  max-width:34ch;
}
.prose{max-width:66ch;color:var(--ink-2)}
.prose h3{color:var(--ink);margin:2.4em 0 .7em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.2em}
.prose li{margin-bottom:.45em}
.prose strong{color:var(--ink);font-weight:600}
.prose blockquote{
  margin:2em 0;padding:0 0 0 1.4rem;
  border-left:2px solid var(--accent);
  font-family:var(--f-display);
  font-size:1.35rem;line-height:1.35;color:var(--ink);
}
.muted{color:var(--ink-3)}
.mono{
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-3);font-weight:500;
}

/* 04. Layout ------------------------------------------------------------- */
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:var(--sec)}
.section--tight{padding-block:clamp(48px,7vw,96px)}
.section--alt{background:var(--paper-2)}
.section__head{
  display:grid;gap:clamp(1.5rem,4vw,4rem);
  grid-template-columns:1fr;
  margin-bottom:clamp(2.5rem,5vw,4.5rem);
  align-items:end;
}
@media (min-width:900px){
  .section__head{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}
}
.grid{display:grid;gap:clamp(1.5rem,3vw,2.5rem)}
.g-2{grid-template-columns:1fr}
.g-3{grid-template-columns:1fr}
@media (min-width:720px){.g-2{grid-template-columns:1fr 1fr}}
@media (min-width:900px){.g-3{grid-template-columns:repeat(3,1fr)}}
.rule{height:1px;background:var(--line);margin-block:clamp(48px,7vw,88px)}

/* 05. Cabeçalho ---------------------------------------------------------- */
.head{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.head.is-stuck{border-bottom-color:var(--line)}
.head__in{
  max-width:var(--max);margin-inline:auto;
  padding:clamp(.85rem,1.4vw,1.15rem) var(--gut);
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
}
.brand{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none}
.brand__mark{
  width:34px;height:34px;flex:none;
  display:grid;place-items:center;
  background:var(--ink);color:var(--paper);
  font-family:var(--f-display);font-size:1.15rem;line-height:1;
  padding-top:2px;
}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__txt strong{
  font-size:.95rem;letter-spacing:.2em;font-weight:600;
}
.brand__txt small{
  font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--ink-3);margin-top:.28rem;
}

.nav{display:flex;align-items:center;gap:clamp(1.2rem,2.4vw,2.4rem)}
.nav ul{
  display:flex;align-items:center;gap:clamp(1.2rem,2.4vw,2.2rem);
  list-style:none;margin:0;padding:0;
}
.nav a{
  text-decoration:none;font-size:.86rem;letter-spacing:.02em;
  color:var(--ink-2);padding-block:.3rem;position:relative;
  transition:color .2s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}

.burger{
  display:none;width:44px;height:44px;margin-right:-10px;
  background:none;border:0;cursor:pointer;
  position:relative;
}
.burger span{
  position:absolute;left:11px;right:11px;height:1.5px;background:var(--ink);
  transition:transform .3s var(--ease),opacity .2s var(--ease);
}
.burger span:nth-child(1){top:19px}
.burger span:nth-child(2){top:25px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(3px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}

@media (max-width:860px){
  .burger{display:block}
  .nav{
    position:fixed;inset:0;
    flex-direction:column;align-items:flex-start;justify-content:center;
    gap:0;padding:var(--gut);
    background:var(--paper);
    transform:translateY(-101%);
    transition:transform .45s var(--ease);
    z-index:99;
  }
  .nav.is-open{transform:translateY(0)}
  .nav ul{flex-direction:column;align-items:flex-start;gap:.2rem;width:100%}
  .nav ul li{width:100%;border-bottom:1px solid var(--line)}
  .nav ul li:first-child{border-top:1px solid var(--line)}
  .nav a{
    font-family:var(--f-display);font-size:2rem;color:var(--ink);
    display:block;padding:.6rem 0;letter-spacing:-.01em;
  }
  .nav a::after{display:none}
  .nav .btn{margin-top:2rem}
}

/* 06. Botões ------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.9rem 1.5rem;
  background:var(--ink);color:var(--paper);
  text-decoration:none;font-size:.82rem;letter-spacing:.06em;
  text-transform:uppercase;font-weight:500;
  border:1px solid var(--ink);border-radius:var(--radius);
  cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.btn:active{transform:translateY(1px)}
.btn--ghost{background:none;color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.btn--sm{padding:.62rem 1.05rem;font-size:.74rem}
.btn[disabled]{opacity:.55;pointer-events:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:.55rem;
  text-decoration:none;font-size:.82rem;letter-spacing:.08em;
  text-transform:uppercase;font-weight:500;
  padding-bottom:.35rem;border-bottom:1px solid var(--line-2);
  transition:gap .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.link-arrow::after{content:"→";font-size:1rem;line-height:1}
.link-arrow:hover{gap:1rem;color:var(--accent);border-color:var(--accent)}

/* 07. Placeholders de imagem -------------------------------------------- */
/* Cada .ph é um lugar reservado para foto. Ver assets/img/README.txt         */
.ph{
  position:relative;margin:0;overflow:hidden;
  aspect-ratio:var(--ar,4/3);
  background:
    repeating-linear-gradient(45deg,
      var(--paper-3) 0 2px, transparent 2px 11px),
    var(--paper-2);
  border:1px solid var(--line);
  display:grid;place-items:center;
}
.ph img{width:100%;height:100%;object-fit:cover}
.ph__label{
  font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);background:var(--paper);
  padding:.5rem .8rem;border:1px solid var(--line);
  text-align:center;max-width:80%;
}
.ph--dark{background:var(--ink);border-color:var(--ink)}
.ph--dark .ph__label{background:transparent;border-color:rgba(255,255,255,.25);color:rgba(255,255,255,.6)}

.media{overflow:hidden}
.media .ph{transition:transform .8s var(--ease)}
a:hover .media .ph{transform:scale(1.03)}

/* 08. Hero --------------------------------------------------------------- */
.hero{
  padding-top:clamp(48px,9vw,110px);
  padding-bottom:clamp(40px,6vw,80px);
  position:relative;
}
.hero__title{
  max-width:16ch;
  margin-bottom:clamp(2rem,4vw,3rem);
}
.hero__title em{font-style:italic;color:var(--accent)}
.hero__bottom{
  display:grid;gap:clamp(1.5rem,4vw,3rem);align-items:end;
  grid-template-columns:1fr;
  border-top:1px solid var(--line);padding-top:1.6rem;
}
@media (min-width:800px){
  .hero__bottom{grid-template-columns:minmax(0,1fr) auto}
}
.hero__figure{margin-top:clamp(2.5rem,5vw,4.5rem)}
.hero__figure .ph{--ar:21/9}
@media (max-width:640px){.hero__figure .ph{--ar:4/3}}

.hero--page{padding-bottom:0}
.hero--page .hero__title{max-width:22ch;font-size:clamp(2.4rem,6.4vw,5rem)}

.crumb{
  display:flex;gap:.6rem;align-items:center;flex-wrap:wrap;
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:clamp(1.5rem,3vw,2.5rem);
}
.crumb a{text-decoration:none}
.crumb a:hover{color:var(--ink)}

/* 09. Projetos ----------------------------------------------------------- */
.projects{display:grid;gap:clamp(2.5rem,5vw,5rem);grid-template-columns:1fr}
@media (min-width:760px){.projects{grid-template-columns:1fr 1fr}}
.project{text-decoration:none;display:block}
.project .media{margin-bottom:1.1rem}
.project__meta{
  display:flex;justify-content:space-between;gap:1rem;align-items:baseline;
  border-top:1px solid var(--line);padding-top:.9rem;
}
.project__name{
  font-family:var(--f-display);font-size:clamp(1.3rem,2vw,1.75rem);
  line-height:1.1;letter-spacing:-.01em;
  transition:color .25s var(--ease);
}
.project:hover .project__name{color:var(--accent)}
.project__tag{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);flex:none}
.project--wide{grid-column:1/-1}
.project--wide .ph{--ar:16/9}
.project .ph{--ar:4/5}
@media (max-width:759px){.project .ph{--ar:4/5}}

.facts{
  display:grid;gap:0;grid-template-columns:1fr 1fr;
  border-top:1px solid var(--line);
}
@media (min-width:760px){.facts{grid-template-columns:repeat(4,1fr)}}
.fact{padding:1.4rem 0;border-bottom:1px solid var(--line)}
.fact dt{
  font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:.5rem;
}
.fact dd{margin:0;font-family:var(--f-display);font-size:1.35rem;line-height:1.1}

.gallery{display:grid;gap:clamp(1rem,2vw,1.5rem);grid-template-columns:1fr}
@media (min-width:760px){
  .gallery{grid-template-columns:1fr 1fr}
  .gallery .ph--full{grid-column:1/-1}
}

.pager{
  display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:1.6rem;
}

/* 10. Serviços, processo, números ---------------------------------------- */
.svc{border-top:1px solid var(--line)}
.svc__item{
  border-bottom:1px solid var(--line);
  display:grid;gap:.4rem 2rem;
  grid-template-columns:auto 1fr;
  padding:clamp(1.5rem,3vw,2.4rem) 0;
  align-items:start;
}
@media (min-width:900px){
  .svc__item{grid-template-columns:4rem minmax(0,1fr) minmax(0,1.1fr);align-items:baseline}
}
.svc__num{
  font-family:var(--f-display);font-size:1rem;color:var(--ink-3);
  padding-top:.35rem;
}
.svc__body{color:var(--ink-2);grid-column:2/-1;max-width:52ch}
@media (min-width:900px){.svc__body{grid-column:auto}}

.steps{counter-reset:step;display:grid;gap:clamp(1.5rem,3vw,2rem);grid-template-columns:1fr}
@media (min-width:720px){.steps{grid-template-columns:1fr 1fr}}
@media (min-width:1040px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  counter-increment:step;
  border-top:2px solid var(--ink);padding-top:1.1rem;
}
.step::before{
  content:"0" counter(step);
  display:block;font-family:var(--f-display);font-size:.95rem;
  color:var(--ink-3);margin-bottom:.9rem;
}
.step h4{margin-bottom:.5rem}
.step p{font-size:.92rem;color:var(--ink-2)}

.stats{display:grid;gap:1px;background:var(--line);grid-template-columns:1fr 1fr}
@media (min-width:820px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--paper);padding:clamp(1.5rem,3vw,2.2rem)}
.stat b{
  display:block;font-family:var(--f-display);font-weight:400;
  font-size:clamp(2rem,4vw,3rem);line-height:1;margin-bottom:.5rem;
}
.stat span{font-size:.8rem;color:var(--ink-3);letter-spacing:.04em}

/* 11. Sobre / equipe ----------------------------------------------------- */
.split{display:grid;gap:clamp(2rem,5vw,5rem);grid-template-columns:1fr;align-items:start}
@media (min-width:900px){
  .split{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}
  .split--sticky > :first-child{position:sticky;top:120px}
}
.team{display:grid;gap:clamp(2rem,4vw,3rem);grid-template-columns:1fr}
@media (min-width:640px){.team{grid-template-columns:1fr 1fr}}
.member .ph{--ar:3/4;margin-bottom:1.1rem}
.member h3{margin-bottom:.3rem}
.member .role{
  font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:.9rem;
}
.member p{font-size:.94rem;color:var(--ink-2)}

.quote{
  font-family:var(--f-display);
  font-size:clamp(1.7rem,3.6vw,2.9rem);
  line-height:1.18;letter-spacing:-.015em;
  max-width:26ch;
}

/* 12. Diário (blog) ------------------------------------------------------ */
.posts{border-top:1px solid var(--line)}
.post-row{
  display:grid;gap:.6rem 2rem;grid-template-columns:1fr;
  padding:clamp(1.6rem,3vw,2.4rem) 0;
  border-bottom:1px solid var(--line);
  text-decoration:none;
  transition:padding-left .3s var(--ease);
}
.post-row:hover{padding-left:.7rem}
@media (min-width:820px){
  .post-row{grid-template-columns:9rem minmax(0,1.4fr) minmax(0,1fr);align-items:baseline}
}
.post-row h3{transition:color .25s var(--ease)}
.post-row:hover h3{color:var(--accent)}
.post-row p{font-size:.92rem;color:var(--ink-2);margin:0}
.post-head{max-width:44ch}
.post-meta{
  display:flex;gap:1rem;flex-wrap:wrap;align-items:center;
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding-block:1rem;margin-bottom:clamp(2rem,4vw,3rem);
}

/* 13. Contato e formulário ---------------------------------------------- */
.form{display:grid;gap:1.4rem}
.field{display:grid;gap:.5rem}
.field label{
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-2);font-weight:500;
}
.field .req{color:var(--accent)}
.field input,.field select,.field textarea{
  font:inherit;font-size:.95rem;color:var(--ink);
  background:var(--paper);
  border:1px solid var(--line-2);border-radius:var(--radius);
  padding:.85rem .95rem;width:100%;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);outline:none;background:var(--paper-2);
}
.field input:user-invalid,.field textarea:user-invalid{border-color:var(--accent)}
.field .hint{font-size:.78rem;color:var(--ink-3)}
.form__row{display:grid;gap:1.4rem;grid-template-columns:1fr}
@media (min-width:640px){.form__row{grid-template-columns:1fr 1fr}}
.hp{position:absolute;left:-9999px}
.form__msg{
  font-size:.9rem;padding:.9rem 1.1rem;border:1px solid var(--line-2);
  border-left:2px solid var(--accent);background:var(--accent-soft);
}
.form__msg[hidden]{display:none!important}

.contact-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.contact-list li{border-bottom:1px solid var(--line);padding:1.15rem 0}
.contact-list dt,.contact-list .k{
  font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:.35rem;
}
.contact-list a{text-decoration:none;border-bottom:1px solid var(--line-2)}
.contact-list a:hover{color:var(--accent);border-color:var(--accent)}

/* 14. Rodapé e WhatsApp ------------------------------------------------- */
.cta{background:var(--ink);color:var(--paper);padding-block:clamp(64px,9vw,120px)}
.cta h2{max-width:24ch;margin-bottom:1.6rem}
.cta p{color:rgba(255,255,255,.68);max-width:46ch}
.cta .btn{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.cta .btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}

.foot{border-top:1px solid var(--line);padding-top:clamp(48px,7vw,80px);padding-bottom:2rem}
.foot__word{
  font-family:var(--f-display);
  font-size:clamp(2.6rem,13vw,11rem);
  line-height:.85;letter-spacing:-.03em;
  margin:0 0 clamp(2.5rem,5vw,4rem);
  color:var(--ink);
}
.foot__cols{
  display:grid;gap:2rem;grid-template-columns:1fr 1fr;
  border-top:1px solid var(--line);padding-top:2rem;
}
@media (min-width:900px){.foot__cols{grid-template-columns:repeat(4,1fr)}}
.foot h4{
  font-family:var(--f-sans);font-size:.68rem;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);
  margin-bottom:1rem;
}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.foot a{text-decoration:none;font-size:.9rem;color:var(--ink-2)}
.foot a:hover{color:var(--ink)}
.foot__base{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:clamp(2.5rem,5vw,4rem);padding-top:1.4rem;
  font-size:.75rem;color:var(--ink-3);
}

.wa{
  position:fixed;right:clamp(14px,2.5vw,28px);bottom:clamp(14px,2.5vw,28px);
  z-index:90;width:54px;height:54px;border-radius:50%;
  background:#25d366;color:#fff;display:grid;place-items:center;
  box-shadow:0 8px 26px rgba(0,0,0,.22);
  transition:transform .25s var(--ease);
}
.wa:hover{transform:scale(1.07)}
.wa svg{width:27px;height:27px}
@media (max-width:860px){.wa{width:48px;height:48px}.wa svg{width:24px;height:24px}}

/* 15. Animações ---------------------------------------------------------- */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal][data-delay="1"]{transition-delay:.09s}
[data-reveal][data-delay="2"]{transition-delay:.18s}
[data-reveal][data-delay="3"]{transition-delay:.27s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
}

@media print{
  .head,.wa,.cta,.burger{display:none!important}
  body{background:#fff;color:#000}
}