/* Dias Studio — folha de estilo v2 (papel, Italiana + Fraunces + Manrope) */
:root{
  --paper:#f2f2ef;
  --paper-2:#e9e9e4;
  --ink:#15160a;
  --ink-2:#5c5d52;
  --ink-3:#8d8e84;
  --line:#d6d6cf;
  --accent:#4a5a3b;     /* oliva */
  --accent-2:#6b7a5a;
  --display:'Italiana',Georgia,serif;
  --serif:'Fraunces',Georgia,serif;
  --sans:'Manrope','Helvetica Neue',Arial,sans-serif;
  --wrap:1200px;
  --gut:clamp(18px,4vw,64px);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-weight:300;font-size:16px;line-height:1.7;letter-spacing:.01em}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
p{margin:0 0 1.1em}
h1,h2,h3{margin:0 0 .5em;font-weight:400;line-height:1.15}
h2{font-family:var(--display);font-size:clamp(26px,3.4vw,44px);letter-spacing:.06em;text-transform:uppercase}
h1{font-family:var(--display);font-size:clamp(34px,5vw,64px);letter-spacing:.06em;text-transform:uppercase}
h3{font-family:var(--display);font-size:clamp(22px,2.2vw,28px);letter-spacing:.14em;text-transform:uppercase}
.serif-title{font-family:var(--serif);font-weight:300;font-style:italic;text-transform:none;letter-spacing:0;font-size:clamp(28px,3vw,40px)}
.eyebrow{font-family:var(--sans);font-weight:400;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-3);margin:0 0 14px}
.lead{font-size:17px;color:var(--ink-2);max-width:58ch}
.muted{color:var(--ink-2);font-size:14px}
.center{text-align:center}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:8px 12px}
.skip:focus{left:8px;z-index:100}
.btn{display:inline-block;font-family:var(--sans);font-weight:500;font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;padding:14px 26px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);cursor:pointer;transition:all .3s var(--ease)}
.btn:hover{background:transparent;color:var(--ink)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper)}
.btn--accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn--accent:hover{background:var(--accent-2);border-color:var(--accent-2);color:#fff}
.link{font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;font-weight:500;border-bottom:1px solid var(--ink-3);padding-bottom:3px;transition:border-color .3s}
.link:hover{border-color:var(--ink)}

/* navegação */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;padding:26px var(--gut);background:rgba(242,242,239,.92);backdrop-filter:blur(8px);transition:padding .3s}
.nav.is-scrolled{padding:16px var(--gut);box-shadow:0 1px 0 var(--line)}
.nav__brand{font-family:var(--display);font-size:24px;letter-spacing:.3em;text-transform:uppercase;white-space:nowrap}
.nav__left,.nav__right{display:flex;gap:28px;font-size:11px;letter-spacing:.22em;text-transform:uppercase;font-weight:500}
.nav__left{justify-content:flex-end}
.nav__right{justify-content:flex-start}
.nav__left a,.nav__right a{position:relative;padding:4px 0}
.nav__left a::after,.nav__right a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav__left a:hover::after,.nav__right a:hover::after{transform:scaleX(1)}
.nav__toggle{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:7px;align-items:center;justify-self:end}
.nav__toggle span{display:block;width:24px;height:1px;background:var(--ink);transition:transform .3s}
.nav__mobile{display:none}
@media (max-width:900px){
  .nav{grid-template-columns:1fr auto}
  .nav__left,.nav__right{display:none}
  .nav__brand{justify-self:start;font-size:20px}
  .nav__toggle{display:flex}
  .nav__mobile{display:flex;position:fixed;inset:0;z-index:45;background:var(--paper);flex-direction:column;justify-content:center;align-items:center;gap:26px;font-size:14px;letter-spacing:.26em;text-transform:uppercase;transform:translateY(-100%);transition:transform .5s var(--ease)}
  .nav__mobile.is-open{transform:none}
  .nav.is-open .nav__toggle span:first-child{transform:translateY(4px) rotate(45deg)}
  .nav.is-open .nav__toggle span:last-child{transform:translateY(-4px) rotate(-45deg)}
}

/* seções */
.section{width:min(var(--wrap),100% - 2*var(--gut));margin-inline:auto;padding-block:clamp(56px,8vw,112px)}
.shead{text-align:center;margin-bottom:clamp(36px,5vw,64px)}
.shead h2{margin:0}
.section--dark{width:100%;background:var(--ink);color:var(--paper)}
.section--dark .eyebrow{color:var(--ink-3)}
.section--dark .shead{padding-inline:var(--gut)}

/* hero */
.hero{width:min(var(--wrap),100% - 2*var(--gut));margin-inline:auto;padding-top:clamp(110px,14vw,150px);text-align:center}
.hero__frame{max-width:1040px;margin-inline:auto;border-radius:16px;overflow:hidden;background:#000;aspect-ratio:16/8.4;box-shadow:0 30px 80px rgba(21,22,10,.12)}
.hero__frame video{width:100%;height:100%;object-fit:cover;filter:grayscale(1)}
.hero__quote{font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(24px,2.8vw,34px);line-height:1.4;color:var(--ink-2);margin:clamp(40px,6vw,72px) auto 0;max-width:30ch}
@media (max-width:600px){.hero__quote br{display:none}.hero__quote{font-size:22px}}

/* carrossel de arcos */
.carousel{position:relative}
.carousel__track{display:flex;gap:clamp(14px,2.2vw,28px);overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:6px 2px 10px}
.carousel__track::-webkit-scrollbar{display:none}
.arch{flex:0 0 clamp(170px,19vw,230px);aspect-ratio:11/17;border-radius:999px;overflow:hidden;scroll-snap-align:start;background:var(--paper-2);position:relative}
.arch img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.arch:hover img{transform:scale(1.04)}
.arch--static{flex:none;width:min(100%,360px);margin-inline:auto}
.carousel__nav{display:flex;justify-content:center;gap:12px;margin-top:28px}
.cbtn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);font-family:var(--serif);font-size:20px;cursor:pointer;transition:all .3s}
.cbtn:hover{border-color:var(--ink)}
.section .center{margin-top:36px}

/* conceito */
.concept{text-align:center;max-width:760px}
.concept__title{font-family:var(--serif);font-style:italic;font-weight:300;text-transform:none;letter-spacing:0;font-size:clamp(28px,3.4vw,42px);margin-bottom:28px}
.concept p{color:var(--ink-2);font-size:15.5px}
.concept em{font-style:normal;color:var(--accent);font-weight:500}
.ornament{display:block;margin-top:28px;color:var(--ink-3);font-size:14px}

/* filmes */
.films{display:grid;grid-template-columns:1fr 1fr;gap:36px 28px}
.film{margin:0}
.film__frame{border-radius:14px;overflow:hidden;background:#000;aspect-ratio:16/9}
.film__frame video{width:100%;height:100%;object-fit:cover}
.film figcaption{text-align:center;padding-top:14px}
.film figcaption em{display:block;font-family:var(--serif);font-size:19px}
.film figcaption small{display:block;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3);margin-top:4px}
@media (max-width:720px){.films{grid-template-columns:1fr}}

/* sobre */
.about{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(32px,6vw,96px);align-items:center}
.about__text p{color:var(--ink-2)}
@media (max-width:860px){.about{grid-template-columns:1fr}}

/* coleções */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.col{padding:36px clamp(16px,3vw,40px);text-align:center;border-left:1px solid var(--line)}
.col:first-child{border-left:0}
.col__num{display:block;font-family:var(--display);font-size:18px;letter-spacing:.2em;color:var(--ink-3);margin-bottom:14px}
.col h3{margin-bottom:12px}
.col__desc{font-family:var(--serif);font-style:italic;color:var(--ink-2);font-size:16px;min-height:3.4em}
.col__details{text-align:left;margin-top:26px;border-top:1px solid var(--line);padding-top:18px}
.col__details ul{list-style:none;padding:0;margin:0 0 18px}
.col__details li{padding:9px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.col__price{font-family:var(--serif);font-size:20px;margin:0 0 14px}
@media (max-width:860px){.cols{grid-template-columns:1fr}.col{border-left:0;border-top:1px solid var(--line)}.col:first-child{border-top:0}}

/* dúvidas */
.faqs{max-width:900px;margin-inline:auto;border-top:1px solid var(--line)}
.faq{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 4px;font-family:var(--serif);font-size:19px}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{font-family:var(--sans);font-size:18px;color:var(--ink-3);transition:transform .3s}
.faq[open] summary span{transform:rotate(45deg)}
.faq p{padding:0 4px 22px;color:var(--ink-2);max-width:70ch}

/* contato */
.contact{width:min(var(--wrap),100% - 2*var(--gut));margin-inline:auto;display:grid;grid-template-columns:1fr 1.8fr;gap:clamp(32px,5vw,72px);align-items:start}
.contact__text p{color:#c9cac0}
.contact__channel{font-size:14px;color:#9c9d92!important}
.form{background:var(--paper);color:var(--ink);padding:clamp(24px,4vw,44px);border-radius:6px}
.form label{display:block;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3);margin-bottom:18px}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:8px;border:0;border-bottom:1px solid var(--line);background:transparent;padding:10px 0;font:inherit;font-size:15px;letter-spacing:0;text-transform:none;color:var(--ink);border-radius:0}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--ink)}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.chips{border:0;padding:0;margin:0 0 20px}
.chips legend{font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;padding:0}
.chips label{display:inline-block;margin:0 8px 8px 0}
.chips input{position:absolute;opacity:0;width:0;height:0}
.chips span{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;transition:all .25s}
.chips input:checked+span{border-color:var(--accent);background:var(--accent);color:#fff}
.form__note{margin:14px 0 0;font-size:14px;color:var(--accent)}
@media (max-width:860px){.contact{grid-template-columns:1fr}.form__row{grid-template-columns:1fr}}

/* rodapé */
.footer{background:var(--ink);color:var(--paper);padding:48px var(--gut) 28px;border-top:1px solid rgba(255,255,255,.08)}
.footer__top{width:min(var(--wrap),100%);margin-inline:auto;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.footer__brand{font-family:var(--display);font-size:24px;letter-spacing:.3em;text-transform:uppercase}
.footer__nav{display:flex;gap:22px;flex-wrap:wrap;align-items:center;font-size:13px;letter-spacing:.04em;color:#c9cac0}
.footer__bottom{width:min(var(--wrap),100%);margin:36px auto 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#8d8e84;border-top:1px solid rgba(255,255,255,.08);padding-top:18px}

/* página de fotografias */
.page-head{padding-top:clamp(130px,16vw,180px);padding-bottom:16px;text-align:center}
.page-head .lead{margin-inline:auto}
.masonry-wrap{padding-top:24px}
.masonry{columns:3;column-gap:18px}
.masonry__item{display:block;break-inside:avoid;margin-bottom:18px;overflow:hidden;background:var(--paper-2);border-radius:4px}
.masonry__item img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.masonry__item:hover img{transform:scale(1.03)}
@media (max-width:1000px){.masonry{columns:2}}
@media (max-width:600px){.masonry{columns:1}}

/* whatsapp flutuante */
.wa{position:fixed;right:22px;bottom:22px;z-index:40;width:54px;height:54px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.2)}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(21,22,10,.96);display:flex;align-items:center;justify-content:center}
.lb[hidden]{display:none}
.lb__fig{margin:0}
.lb__fig img{max-width:92vw;max-height:92vh;width:auto;height:auto;object-fit:contain}
.lb button{position:absolute;background:none;border:0;color:var(--paper);font-family:var(--serif);font-size:44px;line-height:1;cursor:pointer;padding:16px 20px;opacity:.75}
.lb button:hover{opacity:1}
.lb__close{top:10px;right:14px}
.lb__prev{left:6px;top:50%;transform:translateY(-50%)}
.lb__next{right:6px;top:50%;transform:translateY(-50%)}
.lb__count{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);color:var(--paper);font-size:11px;letter-spacing:.3em;opacity:.7}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}