/* Casa Stone | Chapecó/SC */

:root{
  --stone-900:#1C1310;
  --stone-800:#2A1D18;
  --stone-700:#4E352C;
  --stone-500:#7A5A47;
  --sand:#EFDEBD;
  --sand-deep:#D9C093;
  --paper:#FAF7F1;
  --paper-2:#F1EBE0;
  --ink:#221915;
  --ink-soft:#5A4A42;
  --line:rgba(78,53,44,.16);
  --line-dark:rgba(239,222,189,.18);
  --sand-light:#F8ECD2;
  --sand-dark:#A8844F;
  --sand-glow:rgba(217,192,147,.45);
  --wa:#25D366;
  --wa-deep:#128C7E;
  --ease:cubic-bezier(.16,.84,.44,1);

  --ff-display:"Jost",-apple-system,"Segoe UI",sans-serif;
  --ff-body:"Karla",-apple-system,"Segoe UI",sans-serif;

  --wrap:1200px;
  --gut:clamp(20px,5vw,64px);
  --sec:clamp(72px,10vw,132px);
  --cut:26px; /* corte de 45 graus */
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--ff-body);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:400;margin:0;line-height:1.08}
p{margin:0}

.wrap{width:min(100% - var(--gut)*2,var(--wrap));margin-inline:auto}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:999;background:var(--stone-700);color:#fff;padding:10px 16px}
:focus-visible{outline:2px solid var(--stone-700);outline-offset:3px}
.dark :focus-visible{outline-color:var(--sand)}

/* ---------- tipografia ---------- */
.eyebrow{
  font-family:var(--ff-display);font-size:12px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--stone-500);margin-bottom:20px;
  display:flex;align-items:center;gap:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--stone-500);flex:none}
.dark .eyebrow{color:var(--sand-deep)}
.dark .eyebrow::before{background:var(--sand-deep)}

.h-sec{font-size:clamp(30px,4.6vw,52px);letter-spacing:-.015em;max-width:19ch}
.h-sec em{font-style:normal;color:var(--stone-500)}
.dark .h-sec em{color:var(--sand-deep)}
.lead{font-size:clamp(16px,1.6vw,18.5px);color:var(--ink-soft);max-width:56ch;margin-top:22px}
.dark .lead{color:rgba(239,222,189,.75)}

.dark{background:var(--stone-900);color:var(--sand)}

/* ---------- botoes ---------- */
.btn{
  position:relative;overflow:hidden;isolation:isolate;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--ff-display);font-size:14px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  padding:17px 32px;text-decoration:none;border:1px solid transparent;border-radius:999px;cursor:pointer;
  white-space:nowrap;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s ease,color .25s ease,border-color .25s ease;
}
.btn svg{width:18px;height:18px;flex:none}
.btn .arr{transition:transform .35s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}
/* brilho que atravessa o botao */
.btn-solid::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.55) 50%,transparent 70%);
  transform:translateX(-120%);animation:btn-shine 4.5s ease-in-out infinite;
}
@keyframes btn-shine{0%,60%{transform:translateX(-120%)}100%{transform:translateX(120%)}}

.btn-solid{
  background:linear-gradient(135deg,var(--sand-light) 0%,var(--sand-deep) 60%,var(--sand-dark) 100%);
  color:var(--stone-900);
  box-shadow:0 10px 28px -10px var(--sand-glow);
}
.btn-solid:hover{transform:translateY(-3px);box-shadow:0 18px 38px -12px var(--sand-glow)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:currentColor;backdrop-filter:blur(4px)}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--sand-deep);color:var(--sand-light);background:rgba(239,222,189,.08)}

/* em fundo claro (formulario) */
.form-sec .btn-solid{
  background:linear-gradient(135deg,var(--stone-500) 0%,var(--stone-700) 55%,var(--stone-900) 100%);
  color:var(--sand);box-shadow:0 12px 30px -12px rgba(28,19,16,.55);
}
.form-sec .btn-solid:hover{box-shadow:0 20px 40px -14px rgba(28,19,16,.6)}
.form-sec .btn-ghost{color:var(--stone-700);border-color:var(--stone-700);background:transparent}
.form-sec .btn-ghost:hover{background:var(--stone-700);color:var(--sand);border-color:var(--stone-700)}

/* ---------- header ---------- */
.hdr{position:fixed;inset:0 0 auto;z-index:60;transition:background .3s ease,box-shadow .3s ease}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0}
.hdr .brand img{height:44px;width:auto}
.hdr.is-stuck{background:rgba(28,19,16,.94);backdrop-filter:blur(8px)}
.nav{display:flex;gap:30px;align-items:center}
.nav a{
  font-family:var(--ff-display);font-size:13px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--sand);text-decoration:none;opacity:.82;
}
.nav a:hover{opacity:1}
.hdr .btn{padding:12px 22px;font-size:12.5px}
@media(max-width:900px){.nav{display:none}.hdr .hdr-cta{display:none}}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;color:var(--sand);isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(28,19,16,.72) 0%,rgba(28,19,16,.34) 38%,rgba(28,19,16,.9) 100%);
}
.hero-in{padding-bottom:clamp(52px,8vw,92px);padding-top:140px}
.hero h1{font-size:clamp(38px,6.6vw,80px);letter-spacing:-.02em;max-width:15ch}
.hero h1 span{display:block;color:var(--sand-deep)}
.hero p{margin-top:26px;max-width:50ch;color:rgba(239,222,189,.86);font-size:clamp(16px,1.7vw,19px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}


/* ---------- faixa de diferenciais ---------- */
.strip{background:var(--stone-700);color:var(--sand)}
.strip ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr)}
.strip li{padding:34px 30px;border-left:1px solid var(--line-dark)}
.strip li:first-child{border-left:0}
.strip b{display:block;font-family:var(--ff-display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;margin-bottom:8px}
.strip span{font-size:15px;color:rgba(239,222,189,.72);line-height:1.5}
@media(max-width:900px){
  .strip ul{grid-template-columns:1fr 1fr}
  .strip li{padding:24px 20px;border-top:1px solid var(--line-dark)}
  .strip li:nth-child(odd){border-left:0}
}
@media(max-width:520px){.strip ul{grid-template-columns:1fr}.strip li{border-left:0}}

/* ---------- secoes ---------- */
.sec{padding-block:var(--sec)}
.sec-head{margin-bottom:clamp(38px,5vw,62px)}
.sec-head.split{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:end}
@media(max-width:860px){.sec-head.split{grid-template-columns:1fr}}

/* cozinhas */
.kitchen-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(12px,1.6vw,22px)}
.fig{position:relative;margin:0;overflow:hidden;background:var(--paper-2)}
.fig img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.fig:hover img{transform:scale(1.04)}
.fig figcaption{
  position:absolute;left:0;bottom:0;padding:12px 18px;background:var(--stone-900);color:var(--sand);
  font-family:var(--ff-display);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
}
.k-a{grid-column:span 7}
.k-b{grid-column:span 5}
.k-a,.k-b{height:clamp(300px,40vw,520px)}
.k-c{grid-column:span 4;aspect-ratio:1/1}
.k-d{grid-column:span 4;aspect-ratio:1/1}
.k-e{grid-column:span 4;aspect-ratio:1/1}
.cut{clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%)}
@media(max-width:860px){
  .k-a,.k-b{grid-column:span 12;height:auto;aspect-ratio:4/3}
  .k-c,.k-d,.k-e{grid-column:span 6;aspect-ratio:1/1}
}

/* servicos */
.svc{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}
.svc li{
  padding:22px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  font-family:var(--ff-display);font-size:16px;letter-spacing:.04em;display:flex;gap:12px;align-items:baseline;
}
.svc li::before{content:"/";color:var(--sand-deep);font-size:14px}

/* pedras */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}
.tab{
  background:none;border:1px solid var(--line-dark);color:var(--sand);
  font-family:var(--ff-display);font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  padding:12px 22px;cursor:pointer;transition:.2s;
}
.tab:hover{border-color:var(--sand)}
.tab[aria-selected="true"]{background:var(--sand);color:var(--stone-900);border-color:var(--sand)}
.panel{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.panel[hidden]{display:none}
.panel .ptxt h3{font-size:clamp(24px,3vw,34px);margin-bottom:16px}
.panel dl{margin:26px 0 0;display:grid;gap:0;border-top:1px solid var(--line-dark)}
.panel dt{font-family:var(--ff-display);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--sand-deep);padding-top:16px}
.panel dd{margin:4px 0 16px;color:rgba(239,222,189,.8);font-size:15.5px;border-bottom:1px solid var(--line-dark);padding-bottom:16px}
.panel dd:last-child{border-bottom:0}
.panel .pimg{aspect-ratio:4/5;overflow:hidden}
.panel .pimg img{width:100%;height:100%;object-fit:cover}
@media(max-width:860px){.panel{grid-template-columns:1fr}.panel .pimg{aspect-ratio:4/3;order:-1}}

/* producao */
.prod{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,72px);align-items:center}
.prod-img{position:relative;aspect-ratio:3/4;overflow:hidden}
.prod-img img{width:100%;height:100%;object-fit:cover}
.machines{list-style:none;margin:34px 0 0;padding:0;display:grid;gap:0}
.machines li{padding:20px 0;border-top:1px solid var(--line-dark);display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:baseline}
.machines b{font-family:var(--ff-display);font-size:16px;letter-spacing:.06em;min-width:170px}
.machines span{color:rgba(239,222,189,.75);font-size:15.5px}
@media(max-width:860px){.prod{grid-template-columns:1fr}.prod-img{aspect-ratio:4/3}.machines li{grid-template-columns:1fr;gap:4px}}

/* etapas */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line)}
.steps li{padding:40px 32px 0 0}
.steps li+li{border-left:1px solid var(--line);padding-left:32px}
.steps .n{font-family:var(--ff-display);font-size:12px;letter-spacing:.2em;color:var(--sand-deep);display:block;margin-bottom:16px}
.steps h3{font-size:19px;margin-bottom:10px}
.steps p{font-size:15px;color:var(--ink-soft);max-width:26ch}
@media(max-width:980px){
  .steps{grid-template-columns:1fr 1fr;border-top:0}
  .steps li,.steps li+li{padding:32px 28px 32px 0;border-left:0;border-top:1px solid var(--line)}
  .steps li:nth-child(even){border-left:1px solid var(--line);padding-left:28px}
}
@media(max-width:560px){
  .steps{grid-template-columns:1fr}
  .steps li,.steps li+li,.steps li:nth-child(even){padding:28px 0 28px 0;border-left:0}
  .steps p{max-width:none}
}

/* banheiros / galeria secundaria */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(10px,1.4vw,18px)}
.gal .fig{aspect-ratio:3/4}
@media(max-width:860px){.gal{grid-template-columns:1fr 1fr}}

/* sobre */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,72px);align-items:center}
.about-img{aspect-ratio:1/1;overflow:hidden}
.about-img img{width:100%;height:100%;object-fit:cover}
.about .cols{margin-top:24px;display:grid;gap:18px}
.about p{color:var(--ink-soft)}
.scope{
  margin-top:28px;padding-top:18px;border-top:1px solid var(--line);
  font-family:var(--ff-display);font-size:16px;color:var(--stone-700);max-width:44ch;
}
@media(max-width:860px){.about{grid-template-columns:1fr}}

/* faq */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:24px 44px 24px 0;position:relative;
  font-family:var(--ff-display);font-size:clamp(17px,2vw,21px);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:22px;font-size:22px;color:var(--stone-500);transition:transform .25s}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 40px 26px 0;color:var(--ink-soft);font-size:16px}

/* form */
.form-sec{background:var(--sand);color:var(--ink)}
.form-sec .eyebrow{color:var(--stone-700)}
.form-sec .eyebrow::before{background:var(--stone-700)}
.form-sec .h-sec em{color:var(--stone-500)}
.form-sec .lead{color:var(--ink-soft)}
.form-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(32px,5vw,80px);align-items:start}
form{display:grid;gap:18px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-family:var(--ff-display);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--stone-700);margin-bottom:8px}
input,select,textarea{
  width:100%;background:#fff;border:1px solid rgba(78,53,44,.28);color:var(--ink);
  padding:14px 16px;font-family:var(--ff-body);font-size:16px;border-radius:0;
}
input::placeholder,textarea::placeholder{color:#8b7b70}
input:focus,select:focus,textarea:focus{border-color:var(--stone-700);outline:none;box-shadow:0 0 0 2px rgba(78,53,44,.12)}
textarea{resize:vertical;min-height:96px}
.form-note{font-size:14px;color:var(--ink-soft)}
.form-msg{font-size:15px;min-height:22px;color:var(--stone-700)}
@media(max-width:860px){.form-grid,.f-row{grid-template-columns:1fr}}

/* rodape */
.ft{background:var(--stone-900);color:rgba(239,222,189,.72);padding-block:64px 34px;font-size:15px}
.ft a{text-decoration:none}
.ft a:hover{color:var(--sand)}
.ft-top{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}
.ft img{height:52px;width:auto;margin-bottom:20px}
.ft h4{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--sand);margin-bottom:16px}
.ft ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ft-bot{margin-top:52px;gap:14px 28px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px}
@media(max-width:860px){.ft-top{grid-template-columns:1fr}}

/* whatsapp flutuante */
.wa{
  position:fixed;right:22px;bottom:22px;z-index:70;
  width:62px;height:62px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--wa);color:#fff;text-decoration:none;
  box-shadow:0 12px 28px -8px rgba(18,140,126,.6),0 4px 12px rgba(0,0,0,.18);
  animation:wa-bob 3.2s ease-in-out infinite;
  transition:background .25s ease,box-shadow .25s ease;
}
.wa svg{width:34px;height:34px;fill:#fff}
.wa::before{
  content:"";position:absolute;inset:0;border-radius:50%;z-index:-1;
  background:var(--wa);animation:wa-pulse 2.2s ease-out infinite;
}
.wa:hover{background:var(--wa-deep);animation-play-state:paused}
@keyframes wa-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes wa-pulse{0%{transform:scale(1);opacity:.55}100%{transform:scale(1.7);opacity:0}}
@media(max-width:560px){.wa{right:16px;bottom:16px;width:58px;height:58px}.wa svg{width:32px;height:32px}}

/* reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .fig img{transition:none}
  .btn-solid::after,.wa,.wa::before{animation:none}
}