/* ============================================================
   LUCAS MARTTINS FOTOGRAFIA — style.css
   Folha de estilo única para todas as páginas do site.
   Nenhuma dependência externa. 
   ============================================================ */

:root {
  --cor-fundo: #000000;
  --cor-texto: #d0cece;
  --cor-titulo: #ffffff;
  --cor-subtitulo: #919191;
  --cor-link: #aaaaaa;
  --cor-destaque: #ffffff;
  --cor-borda: rgba(255, 255, 255, 0.12);
  --fonte-base: 'Helvetica Neue', Arial, sans-serif;
  --largura-max: 1140px;
  --transicao: 0.35s ease;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--cor-fundo);
  color: var(--cor-texto);
  font-family: var(--fonte-base);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--cor-link);
  text-decoration: none;
  transition: color var(--transicao);
}

a:hover {
  color: var(--cor-titulo);
}

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

h1, h2, h3, h4 {
  color: var(--cor-titulo);
  font-weight: 300;
  letter-spacing: 1px;
  margin: 0 0 15px;
}

h1 { font-size: 34px; }
h2 { font-size: 26px; }
h3 { font-size: 18px; color: var(--cor-subtitulo); font-weight: 400; }

p {
  margin: 0 0 15px;
}

.wrap {
  width: 100%;
  max-width: var(--largura-max);
  margin: 0 auto;
  padding: 0 25px;
}

/* ---------------- HEADER / MENU ---------------- */

#site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 30px 0;
  background: transparent;
}

#site-header.fixo {
  position: fixed;
  background: rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 15px 0;
  transition: padding var(--transicao), background-color var(--transicao), backdrop-filter var(--transicao);
}

#site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#logo img {
  height: 46px;
  width: auto;
}

#logo a {
  display: inline-block;
}

/* ---------------- MENU ---------------- */

nav#menu-principal .container {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(34, 34, 34, 0.3);
  border-radius: 999px;
  padding: 6px;
}

nav#menu-principal .btn {
  position: relative;
  display: inline-block;
  padding: 9px 18px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cor-link);
  border-radius: 999px;
  white-space: nowrap;
  transition: color var(--transicao), background-color var(--transicao);
}
/* ---O último número do RGBA controla a opacidade (indo de 0 para totalmente transparente a 1 para totalmente opaco).--- */
nav#menu-principal .btn:hover,
nav#menu-principal .btn.ativo {
  color: var(--cor-titulo);
  background-color: rgba(255, 255, 255, 0.1);
}

#botao-menu-mobile {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

#botao-menu-mobile span {
  width: 26px;
  height: 2px;
  background-color: var(--cor-titulo);
  display: block;
}

@media (max-width: 820px) {
  nav#menu-principal {
    position: fixed;
    top: 0;
    right: -280px;
    width: 260px;
    height: 100%;
    background-color: #0a0a0a;
    padding: 90px 30px;
    transition: right var(--transicao);
    z-index: 99;
  }

  nav#menu-principal.aberto {
    right: 0;
  }

  nav#menu-principal .container {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    background: transparent;
    padding: 0;
  }

  nav#menu-principal .btn {
    padding: 12px 10px;
    border-radius: 8px;
    font-size: 14px;
  }

  #botao-menu-mobile {
    display: flex;
  }
}

/* ---------------- HERO / SLIDER (home) ---------------- */

#hero-slider {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 480px;
  overflow: hidden;
  background-color: #050505;
}

#hero-slider .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 2.8s ease-in-out;
}

#hero-slider .slide.ativo {
  opacity: 1;
  z-index: 2;
}

#hero-slider .slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#hero-slider .slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0) 45%);
}

.hero-nav {
  position: absolute;
  bottom: 26px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 10px;
  z-index: 3;
}

.hero-nav button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--cor-titulo);
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.hero-nav button.ativo {
  background-color: var(--cor-titulo);
}

/* ---------------- BANNER DE PÁGINA INTERNA ---------------- */

.banner-pagina {
  position: relative;
  height: 45vh;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
}

.banner-pagina::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.55);
}

.banner-pagina .conteudo-banner {
  position: relative;
  z-index: 1;
}

.banner-pagina h1 {
  margin-bottom: 6px;
}

.banner-pagina p {
  color: var(--cor-subtitulo);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 12px;
}

/* ---------------- CONTEÚDO GERAL ---------------- */

main {
  padding: 80px 0;
}

.intro-texto {
  max-width: 720px;
  margin: 0 auto 55px;
  text-align: center;
}

/* ---------------- GALERIA ---------------- */

.galeria {
  columns: 4 260px;
  column-gap: 16px;
}

.galeria .item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background-color: #111;
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  margin: 0 0 16px;
  aspect-ratio: var(--prop, 3 / 4);
}

.galeria .item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform var(--transicao);
}

/* páginas de galeria sem banner: dá espaço pro cabeçalho (que fica
   flutuando por cima, transparente) não cobrir a primeira fileira de fotos */
main.sem-banner {
  padding-top: 150px;
}

@media (max-width: 820px) {
  main.sem-banner {
    padding-top: 130px;
  }
}

.galeria .item:hover img {
  transform: scale(1.06);
}

.galeria .item .legenda {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--cor-titulo);
  opacity: 0;
  transition: opacity var(--transicao);
}

.galeria .item:hover .legenda {
  opacity: 1;
}

@media (max-width: 900px) {
  .galeria {
    columns: 3 200px;
  }
}

@media (max-width: 560px) {
  .galeria {
    columns: 2;
    column-gap: 10px;
  }

  .galeria .item {
    margin-bottom: 10px;
  }
}

/* ---------------- LIGHTBOX ---------------- */

#lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
}

#lightbox.aberto {
  display: flex;
}

#lightbox img {
  max-width: 92vw;
  max-height: 86vh;
  object-fit: contain;
}

#lightbox .fechar-lightbox,
#lightbox .anterior,
#lightbox .proximo {
  position: absolute;
  background: transparent;
  border: none;
  color: var(--cor-titulo);
  font-size: 26px;
  cursor: pointer;
  padding: 10px;
}

#lightbox .fechar-lightbox {
  top: 18px;
  right: 24px;
}

#lightbox .anterior { left: 14px; top: 50%; transform: translateY(-50%); }
#lightbox .proximo { right: 14px; top: 50%; transform: translateY(-50%); }

/* ---------------- PÁGINA QUEM SOU ---------------- */

.sobre {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 60px;
  align-items: start;
}

.sobre .foto-perfil {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background-color: #111;
}

@media (max-width: 760px) {
  .sobre {
    grid-template-columns: 1fr;
  }
}

/* ---------------- CONTATO / RODAPÉ ---------------- */

#rodape {
  padding: 20px 0;
  border-top: 1px solid var(--cor-borda);
  text-align: center;
}

#rodape .redes {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 18px;
}

#rodape .redes a {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

#rodape .copyright {
  font-size: 12px;
  color: var(--cor-subtitulo);
}

/* ---------------- BOTÃO VOLTAR AO TOPO ---------------- */

#voltar-topo {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--cor-subtitulo);
  color: #000;
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  z-index: 50;
}

#voltar-topo.visivel {
  display: flex;
}