/* ============================================================
   MY LITUS — folha de estilo
   Conceito: gabinete de curiosidades minerais. O leitor de pedras
   como naturalista — rigor de catálogo aplicado a um ofício que a
   maioria trata como vago. "Litus" = a linha onde a terra encontra o
   mar: um limiar. Esse limiar (claro/escuro, superfície/fundo)
   organiza o layout inteiro.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600&family=Instrument+Serif:ital@0;1&family=Work+Sans:wght@300;400;500&display=swap');

:root{
  /* --- cor: 6 tokens nomeados --- */
  --stone-dark:  #212B21;   /* fundo profundo — musgo/ardósia, não preto puro */
  --stone-deep:  #17201A;   /* sombra dentro do escuro, para profundidade */
  --paper:       #F2ECDC;   /* pergaminho quente, para blocos de leitura */
  --gold:        #C69A44;   /* pirita — o lampejo irreverente */
  --clay:        #9C5B42;   /* óxido/argila — mineral, usado com parcimônia */
  --ink:         #2A271F;   /* texto sobre paper, nunca preto puro */
  --mist:        #ACB3A0;   /* texto secundário sobre stone-dark */

  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Work Sans', -apple-system, sans-serif;

  --measure: 62ch;
  --edge: clamp(24px, 6vw, 96px);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--stone-dark);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.on-paper{ background: var(--paper); color: var(--ink); }

img, svg{ display:block; max-width:100%; }

a{ color: inherit; text-decoration: none; }

::selection{ background: var(--gold); color: var(--stone-deep); }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------------------------------------------------------
   Wordmark & navegação
   --------------------------------------------------------- */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 40;
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: clamp(18px, 3vw, 30px) var(--edge);
  background: linear-gradient(to bottom, rgba(23,32,26,0.6) 0%, rgba(23,32,26,0.3) 60%, rgba(23,32,26,0) 100%);
}
.site-header.on-paper,
.on-paper .site-header{
  background: linear-gradient(to bottom, rgba(242,236,220,0.85) 0%, rgba(242,236,220,0.45) 60%, rgba(242,236,220,0) 100%);
}

.wordmark{
  font-family: 'Cinzel', serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  color: var(--paper);
}
.wordmark .accent{ color: var(--gold); }
.on-paper .wordmark{ color: var(--ink); }
.on-paper .wordmark .accent{ color: var(--clay); }

.minimal-header{
  padding: clamp(24px, 4vw, 36px) var(--edge) 0;
}
.minimal-wordmark{
  font-family: 'Cinzel', serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  color: var(--paper);
}
.minimal-wordmark .accent{ color: var(--gold); }
.on-paper .minimal-wordmark{ color: var(--ink); }
.on-paper .minimal-wordmark .accent{ color: var(--clay); }

.nav-toggle{
  background:none; border:none; cursor:pointer;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 8px;
}
.on-paper .nav-toggle{ color: var(--ink); }
.nav-toggle.is-open{ color: var(--paper) !important; }

.site-nav{
  position: fixed;
  inset: 0;
  z-index: 30;
  background: var(--stone-deep);
  display:flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(14px, 3vw, 22px);
  padding: var(--edge);
  transform: translateY(-100%);
  transition: transform 0.6s cubic-bezier(.65,0,.35,1);
}
.site-nav.is-open{ transform: translateY(0); }

.site-nav a{
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 3.4rem);
  color: var(--paper);
  position: relative;
  padding-bottom: 2px;
}
.site-nav a span{
  display:block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--mist);
  margin-bottom: 6px;
}
.site-nav a:hover{ color: var(--gold); }
.site-nav a.current{ color: var(--gold); }

/* ---------------------------------------------------------
   Etiqueta de espécime — o dispositivo estrutural recorrente.
   Cada página se apresenta como uma peça catalogada: rigor de
   museu aplicado a um ofício que a maioria trata como vago.
   --------------------------------------------------------- */
.specimen-label{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 22px;
}
.specimen-label::before{
  content:'';
  width: 22px; height: 1px;
  background: var(--gold);
}
.on-paper .specimen-label{ color: var(--clay); }
.on-paper .specimen-label::before{ background: var(--clay); }

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero{
  min-height: 100svh;
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  text-align:center;
  position: relative;
  padding: var(--edge);
  overflow:hidden;
}

.hero-field{
  position:absolute; inset:0; z-index:0;
  opacity: 0.9;
}
.hero-field img{
  width:100%; height:100%; object-fit:cover; object-position: center 30%;
  filter: sepia(0.15) saturate(0.7) contrast(1.05) brightness(0.8);
}
.hero-scrim{
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(23,32,26,0.5) 0%, rgba(23,32,26,0.62) 45%, rgba(23,32,26,0.88) 100%);
}

/* ---------------------------------------------------------
   Fotografia real — grading consistente com a paleta
   --------------------------------------------------------- */
.photo{ filter: sepia(0.12) saturate(0.82) contrast(1.02) brightness(0.99); }

.figure{ margin: 46px 0; }
.figure img{ width:100%; height:auto; display:block; border-radius: 1px; }
.figure figcaption{
  margin-top: 14px;
  font-size: 0.86rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--mist);
}
.on-paper .figure figcaption{ color: var(--clay); }

.figure-portrait{ max-width: 320px; margin: 46px auto 54px; }
.figure-portrait img{
  filter: sepia(0.1) saturate(0.85) contrast(1.03) grayscale(0.12);
  mask-image: radial-gradient(ellipse 66% 74% at center, black 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 66% 74% at center, black 55%, transparent 100%);
}
.figure-portrait figcaption{ text-align:center; font-weight: 500; }

.hero-content{ position:relative; z-index:2; max-width: 20ch; }

.hero-line{
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2rem, 5.4vw, 3.6rem);
  line-height: 1.25;
  color: var(--paper);
  text-wrap: balance;
}

.hero-credit{
  margin-top: 28px;
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--mist);
}

.scroll-cue{
  position:absolute; bottom: 34px; left:50%; transform: translateX(-50%);
  font-size: 0.62rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--mist);
  display:flex; flex-direction:column; align-items:center; gap: 10px;
  z-index:2;
}
.scroll-cue::after{
  content:''; width:1px; height: 34px; background: var(--mist);
  animation: drip 2.4s ease-in-out infinite;
}
@keyframes drip{
  0%{ transform: scaleY(0); transform-origin: top; opacity: 0; }
  40%{ transform: scaleY(1); transform-origin: top; opacity: 1; }
  60%{ transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100%{ transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ---------------------------------------------------------
   Seções gerais
   --------------------------------------------------------- */
section{ padding: clamp(70px, 12vw, 140px) var(--edge); }

.section-inner{ max-width: var(--measure); margin: 0 auto; }
.section-inner.wide{ max-width: 1100px; }

h1.page-title, h2.block-title{
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.1;
  margin: 0 0 32px;
}

.page-subtitle{
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  color: var(--gold);
  margin: -14px 0 26px;
}
.on-paper .page-subtitle{ color: var(--clay); }

.section-heading{
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.2;
  margin: 50px 0 18px;
}

p{ margin: 0 0 22px; font-size: 1.08rem; }
p.lede{ font-size: 1.18rem; }

.pull-quote{
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  line-height: 1.35;
  color: var(--gold);
  margin: 56px 0;
  max-width: 18ch;
}
.on-paper .pull-quote{ color: var(--clay); }

/* ---------------------------------------------------------
   Fluxograma — passo a passo
   --------------------------------------------------------- */
.flow{
  margin: 40px 0 56px;
  border-top: 1px solid rgba(242,236,220,0.14);
}
.on-paper .flow{ border-top-color: rgba(42,39,31,0.14); }

.flow-step{
  display: flex;
  align-items: baseline;
  gap: 26px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(242,236,220,0.14);
}
.on-paper .flow-step{ border-bottom-color: rgba(42,39,31,0.14); }

.flow-num{
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--gold);
  width: 30px;
  flex-shrink: 0;
}
.on-paper .flow-num{ color: var(--clay); }

.flow-text{
  margin: 0;
  font-size: 0.98rem;
  color: inherit;
}

.whisper-link{
  display:inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  opacity: 0.85;
  transition: opacity 0.3s ease, letter-spacing 0.3s ease;
}
.whisper-link:hover{ opacity:1; letter-spacing: 0.09em; }

/* teasers da home */
.teaser-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: rgba(242,236,220,0.14);
  border-top: 1px solid rgba(242,236,220,0.14);
  border-bottom: 1px solid rgba(242,236,220,0.14);
}
.teaser{
  background: var(--stone-dark);
  padding: 44px 34px;
  display:flex; flex-direction:column; gap: 14px;
}
.teaser .num{ font-size: 0.74rem; letter-spacing: 0.2em; color: var(--gold); }
.teaser h3{ font-family: var(--font-display); font-weight:400; font-size: 1.7rem; margin:0; }
.teaser p{ font-size: 1rem; color: var(--mist); margin:0; }
.teaser a.whisper-link{ margin-top: auto; }

/* ---------------------------------------------------------
   Galeria — obras.html
   --------------------------------------------------------- */
.gallery{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(20px, 3vw, 40px);
}
@media (min-width: 640px){
  .plate.wide-plate{ grid-column: span 2; }
}
.plate-art.wide-art{ aspect-ratio: 4/3; }
.plate{
  display:flex; flex-direction:column; gap: 14px;
}
.plate-trigger{
  display:block; width:100%; padding:0; margin:0; border:none; background:none; cursor: zoom-in;
  font: inherit; color: inherit; text-align: left;
}
.plate-art{
  aspect-ratio: 4/5;
  border-radius: 2px;
  overflow:hidden;
  background: var(--stone-deep);
}
.plate-art img{ width:100%; height:100%; object-fit:cover; transition: transform 0.5s ease; }
.plate-trigger:hover .plate-art img{ transform: scale(1.03); }
.plate-caption{
  display:flex; justify-content:space-between; gap: 12px;
  font-size: 0.78rem; letter-spacing: 0.04em; color: var(--mist);
}
.plate-caption strong{ color: var(--paper); font-weight: 400; font-family: var(--font-display); font-size: 1rem; }

.gallery-note{
  margin-top: 50px;
  font-size: 0.8rem;
  color: var(--mist);
  border-top: 1px solid rgba(242,236,220,0.14);
  padding-top: 22px;
  max-width: 60ch;
}

/* ---------------------------------------------------------
   Lightbox — ampliar obras
   --------------------------------------------------------- */
.lightbox{
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(20px, 5vw, 60px);
  background: rgba(15, 19, 14, 0.93);
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s ease;
}
.lightbox.is-open{ opacity: 1; visibility: visible; }
.lightbox-inner{
  display: flex; flex-direction: column; align-items: center;
  gap: 22px; max-width: 1100px; max-height: 100%;
}
.lightbox-inner img{
  max-width: 100%; max-height: 70vh;
  width: auto; height: auto;
  object-fit: contain;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.lightbox-caption{ text-align: center; max-width: 56ch; }
.lightbox-artist{
  font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); margin: 0 0 8px;
}
.lightbox-title{
  font-family: var(--font-display); font-style: italic;
  font-size: clamp(1.2rem, 2.6vw, 1.6rem);
  color: var(--paper); margin: 0 0 10px;
}
.lightbox-title .lightbox-year{ font-style: normal; color: var(--mist); }
.lightbox-medium{ font-size: 0.82rem; color: var(--mist); margin: 0 0 4px; }
.lightbox-note{ font-size: 0.78rem; color: var(--mist); opacity: 0.8; margin: 0; }
.lightbox-close{
  position: absolute; top: clamp(16px,3vw,30px); right: clamp(16px,3vw,30px);
  background: none; border: 1px solid rgba(242,236,220,0.4); color: var(--paper);
  width: 40px; height: 40px; border-radius: 50%; cursor: pointer;
  font-size: 0.9rem; line-height: 1;
  transition: border-color 0.3s ease, color 0.3s ease;
}
.lightbox-close:hover{ border-color: var(--gold); color: var(--gold); }

/* ---------------------------------------------------------
   Formulário — contato.html
   --------------------------------------------------------- */
.filter-line{
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  color: var(--gold);
  max-width: 30ch;
  margin-bottom: 48px;
}

.form-error{
  background: rgba(156, 91, 66, 0.15);
  border-left: 2px solid var(--clay);
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--paper);
  max-width: 46ch;
  margin-bottom: 34px;
}
.on-paper .form-error{ color: var(--ink); }

form.encounter-form{
  display:flex; flex-direction:column; gap: 30px;
  max-width: 560px;
}
.field{ display:flex; flex-direction:column; gap: 8px; }
.field label{
  font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--mist);
}
.field input, .field textarea{
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(242,236,220,0.3);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 300;
  padding: 10px 2px;
  resize: vertical;
}
.field input:focus, .field textarea:focus{
  outline: none;
  border-bottom-color: var(--gold);
}
.field textarea{ min-height: 110px; }

.on-paper .field label{ color: var(--clay); }
.on-paper .field input, .on-paper .field textarea{
  color: var(--ink);
  border-bottom-color: rgba(42,39,31,0.3);
}
.on-paper .field input:focus, .on-paper .field textarea:focus{
  border-bottom-color: var(--clay);
}

.pair-bad{ margin: 4px 0 10px 6px; font-style: italic; font-size: 0.95rem; color: var(--clay); }
.pair-good{ margin: 4px 0 22px 6px; font-style: italic; font-size: 0.95rem; }

.hp-field{
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

button.submit-whisper{
  align-self: flex-start;
  background:none;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 14px 30px;
  cursor:pointer;
  transition: background 0.35s ease, color 0.35s ease;
}
button.submit-whisper:hover{ background: var(--gold); color: var(--stone-deep); }
.on-paper button.submit-whisper{ color: var(--clay); border-color: var(--clay); }
.on-paper button.submit-whisper:hover{ background: var(--clay); color: var(--paper); }

.checkbox-label{
  display:flex; align-items:flex-start; gap: 12px;
  font-size: 0.85rem; color: var(--mist); cursor: pointer;
}
.checkbox-label input[type="checkbox"]{
  margin-top: 3px; width: 16px; height: 16px; flex-shrink: 0;
  accent-color: var(--gold);
}

.next-step-note{
  margin-top: 30px;
  font-size: 0.85rem;
  color: var(--mist);
  max-width: 46ch;
  border-top: 1px solid rgba(242,236,220,0.14);
  padding-top: 22px;
}

.alt-contact{ margin-top: 24px; font-size: 0.9rem; color: var(--mist); }
.on-paper .alt-contact{ color: var(--clay); }

/* ---------------------------------------------------------
   Rodapé
   --------------------------------------------------------- */
.site-footer{
  padding: 96px var(--edge) 64px;
  display:flex; flex-direction:column; align-items:center;
  text-align:center; gap: 20px;
  border-top: 1px solid rgba(242,236,220,0.14);
}
.on-paper .site-footer{ border-top-color: rgba(42,39,31,0.14); }

.footer-mark{ opacity: 0.9; margin-bottom: 2px; }
.footer-mark img, .footer-mark svg{ width: 46px; height: auto; display:block; margin: 0 auto; }

.footer-wordmark{
  font-family: 'Cinzel', serif;
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.24em;
  color: var(--paper);
}
.on-paper .footer-wordmark{ color: var(--ink); }

.footer-tagline{
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--mist);
  max-width: 32ch;
  margin: 2px 0 8px;
}

.footer-nav{
  display:flex; flex-wrap:wrap; justify-content:center; gap: clamp(18px, 3vw, 30px);
}
.footer-nav a{
  font-family: var(--font-body);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--paper);
  opacity: 0.82;
  transition: opacity 0.3s ease, color 0.3s ease;
}
.on-paper .footer-nav a{ color: var(--ink); }
.footer-nav a:hover{ opacity: 1; color: var(--gold); }
.on-paper .footer-nav a:hover{ color: var(--clay); }

.footer-email{
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--mist);
  margin-top: 6px;
}
.footer-email:hover{ color: var(--gold); }

.footer-copy{
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  opacity: 0.8;
  margin: 14px 0 0;
}

/* ---------------------------------------------------------
   Revelação ao rolar
   --------------------------------------------------------- */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.is-visible{ opacity:1; transform: translateY(0); }

@media (max-width: 640px){
  .plate-caption{ flex-direction:column; gap: 2px; }
}