/* =========================================================================
   SPKR - Portfolio
   Estilo escuro / minimalista inspirado em portfolios fotograficos editoriais.
   Tudo que voce normalmente vai querer trocar (cores, espacamentos, fontes)
   esta nas variaveis :root logo abaixo.
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. VARIAVEIS (edite aqui as cores e medidas do site inteiro)
   ------------------------------------------------------------------------- */
:root {
  --bg: #0b0b0b;            /* fundo geral (preto suave, nao puro) */
  --bg-elev: #141414;       /* fundo de blocos elevados */
  --text: #f2f2f2;          /* texto principal */
  --muted: #9a9a9a;         /* texto secundario / legendas */
  --line: #1f1f1f;          /* linhas e bordas finas */
  --accent: #f6cc1d;        /* dourado da marca (usar com parcimonia) */

  --gap: 10px;              /* espaco entre as fotos da grade */
  --pad-x: clamp(16px, 4vw, 64px);   /* margem lateral do conteudo */

  --font-display: "Fira Sans", system-ui, sans-serif;  /* titulos e botoes (Semibold, maiusculo) */
  --font-body: "Inter", system-ui, -apple-system, sans-serif; /* textos menores */

  --header-h: 72px;        /* altura do cabecalho */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* -------------------------------------------------------------------------
   2. RESET BASICO
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* -------------------------------------------------------------------------
   3. CABECALHO / NAVEGACAO
   ------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 11, 11, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: var(--header-h);
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: 1fr auto 1fr;  /* esquerda | marca | direita */
  align-items: center;
  gap: 16px;
}

/* Links do menu (esquerda) */
.nav-left {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.25s var(--ease);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.is-active { color: var(--text); }

/* Marca / logo central */
.brand {
  grid-column: 2;
  justify-self: center;
  line-height: 0;          /* evita espaco extra ao redor da logo */
  display: inline-flex;
  align-items: center;
}

/* Logo (imagem) no cabecalho */
.brand-logo { height: 30px; width: auto; display: block; }

/* Redes sociais (direita) */
.socials {
  grid-column: 3;
  justify-self: end;
  display: flex;
  gap: 18px;
  align-items: center;
}

.socials a {
  opacity: 0.7;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}

.socials a:hover { opacity: 1; transform: translateY(-2px); }
.socials img { width: 18px; height: 18px; }

/* Botao hamburguer (so aparece no mobile) */
.nav-toggle {
  display: none;
  grid-column: 3;
  justify-self: end;
  background: none;
  border: 0;
  width: 32px;
  height: 32px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

/* -------------------------------------------------------------------------
   4. SECAO HERO (usada na pagina de Cases: logo SPKR + chamada)
   ------------------------------------------------------------------------- */
.hero {
  min-height: 52vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(64px, 12vh, 140px) var(--pad-x) clamp(48px, 8vh, 90px);
}

/* Variante "capa": ocupa quase a tela inteira na pagina de Cases, deixando
   so uma fresta da grade aparecer embaixo (convida a rolar ate as fotos). */
.hero--cover {
  min-height: calc(100dvh - var(--header-h) - 72px);
}

/* Entrada suave do logo e da chamada (so CSS, nao depende de JS) */
@media (prefers-reduced-motion: no-preference) {
  .hero--cover .hero-logo,
  .hero--cover .hero-logo-wrap { animation: heroIn 0.9s var(--ease) both; }
  .hero--cover .hero-sub { animation: heroIn 0.9s var(--ease) 0.15s both; }
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

.hero-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(64px, 14vw, 180px);
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
  padding-left: 0.12em;
}

/* Logo (imagem) grande na capa */
.hero-logo-wrap { line-height: 0; margin: 0; }
.hero-logo-img {
  width: min(440px, 76vw);
  height: auto;
  display: block;
  margin: 0 auto;
}

.hero-sub {
  margin-top: 22px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(13px, 1.4vw, 16px);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 0.4em;
}

/* -------------------------------------------------------------------------
   5. GRADE DE TRABALHOS (pagina Work e dentro dos Cases)
   ------------------------------------------------------------------------- */
.work {
  padding: var(--gap) var(--pad-x) clamp(60px, 10vh, 120px);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}

/* Um item da grade pode ocupar a largura inteira: adicione class="span-2" */
.tile.span-2 { grid-column: 1 / -1; }

.tile {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--bg-elev);
}

.tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.tile:hover img { transform: scale(1.05); }

/* Legenda que aparece ao passar o mouse */
.tile-caption {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: rgba(7, 7, 7, 0.45);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  padding: 16px;
}

.tile:hover .tile-caption,
.tile:focus-within .tile-caption { opacity: 1; }

.tile-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(16px, 1.8vw, 24px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tile-year {
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--muted);
}

/* -------------------------------------------------------------------------
   6. GRADE DE CASES (quadrados clicaveis -> portfolio completo do cliente)
   ------------------------------------------------------------------------- */
.cases {
  padding: 0 var(--pad-x) clamp(60px, 10vh, 120px);
}

/* Texto pequeno acima da grade de cases (no lugar da antiga "capa") */
.cases-head {
  padding: clamp(44px, 7.5vh, 80px) 0;  /* mesma folga em cima e embaixo (equilibrado) */
  text-align: center;
}
.cases-head-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 2.6vw, 32px);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.cases-head-sub {
  margin-top: 10px;
  color: var(--muted);
  font-size: clamp(13px, 1.3vw, 16px);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}

/* Um card pode ocupar a largura inteira (destaque): class="span-2" */
.case-card.span-2 { grid-column: 1 / -1; }

.case-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;  /* mesma proporcao das capas */
  background: var(--bg-elev);
  display: block;
}

.case-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.case-card:hover img { transform: scale(1.06); }

.case-card-overlay {
  position: absolute;
  inset: 0;
  display: none;   /* sem nome/legenda sobre os cards: a capa ja traz essa info */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, rgba(7,7,7,0) 35%, rgba(7,7,7,0.7) 100%);
  transition: background 0.4s var(--ease);
}
.case-card:hover .case-card-overlay { background: rgba(7,7,7,0.55); }

.case-card-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(15px, 1.6vw, 22px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  position: absolute;
  bottom: 22px;
  transition: transform 0.4s var(--ease);
}
.case-card:hover .case-card-name { transform: translateY(-6px); }

.case-card-tag {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  position: absolute;
  bottom: 2px;
}
.case-card:hover .case-card-tag { opacity: 1; bottom: 0; }

/* -------------------------------------------------------------------------
   7. PAGINA DE UM CASE (portfolio completo do cliente)
   ------------------------------------------------------------------------- */
.case-head {
  padding: 20px var(--pad-x);
  text-align: left;
}

.case-back {
  display: inline-block;
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.25s var(--ease);
}
.case-back:hover { color: var(--accent); }

.case-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 7vw, 96px);
  letter-spacing: 0.06em;
  line-height: 1.02;
  text-transform: uppercase;
}

.case-meta {
  margin-top: 16px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.case-intro {
  max-width: 60ch;
  margin: 26px auto 0;
  color: var(--muted);
  font-size: 16px;
}

/* Galeria do case: pranchas de identidade empilhadas, largura total,
   SEM cortar a imagem (cada prancha aparece inteira). */
.case-gallery {
  max-width: 1200px;      /* um pouco menor: limita a largura das pranchas */
  margin: 0 auto;         /* centraliza, com margem fina nos dois lados */
  padding: 0 0 clamp(60px, 10vh, 120px);
  display: grid;
  gap: 0;                 /* pranchas continuas, coladas, sem espaco entre elas */
}

.board {
  position: relative;
  background: var(--bg-elev);
  overflow: hidden;
}

.board img { width: 100%; height: auto; display: block; }

/* Botao "Visitar site" no canto da prancha (pranchas que mostram um site) */
.board-visit {
  position: absolute;
  left: clamp(20px, 3vw, 52px);
  bottom: clamp(20px, 3vw, 52px);
  border-radius: 10px;
  background: var(--accent);
  color: #0b0b0b;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(11px, 1.1vw, 14px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 10px 18px;
  white-space: nowrap;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.28);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}
.board-visit:hover { transform: translateY(-2px); background: #ffd942; }
.board-visit:active { transform: translateY(0); }

/* "Conheca tambem": grade com os outros cases (no fim de cada case) */
.cases-also {
  padding: clamp(48px, 9vh, 100px) var(--pad-x) clamp(20px, 4vh, 40px);
  border-top: 1px solid var(--line);
}
.cases-also-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(15px, 1.8vw, 22px);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: clamp(18px, 3vh, 30px);
}
/* Carrossel automatico (os cards rolam sozinhos de 5 em 5s via JS) */
.cases-also-carousel,
.cases-also-grid { overflow: hidden; }
.cases-also-grid,
.cases-also-track {
  display: flex;
  gap: var(--gap);
  will-change: transform;
}
.cases-also-grid > .case-card,
.cases-also-track > .case-card {
  flex: 0 0 calc((100% - 3 * var(--gap)) / 4);  /* 4 cards por vez no desktop */
}

/* CTA de contato no fim do case */
.case-cta {
  text-align: center;
  padding: clamp(44px, 9vh, 100px) var(--pad-x) clamp(56px, 11vh, 120px);
  border-top: 1px solid var(--line);
}
.case-cta-text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 3vw, 34px);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: clamp(20px, 3vh, 30px);
}
.btn-cta {
  display: inline-block;
  background: var(--accent);
  color: #0b0b0b;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 16px 36px;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}
.btn-cta:hover { transform: translateY(-2px); background: #ffd942; }
.btn-cta:active { transform: translateY(0); }

/* -------------------------------------------------------------------------
   8. PAGINA ABOUT & CONTACT
   ------------------------------------------------------------------------- */
.about {
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(64px, 12vh, 140px) var(--pad-x) clamp(60px, 10vh, 120px);
}

.about h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 72px);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 28px;
}

.about p {
  color: var(--muted);
  font-size: clamp(16px, 1.4vw, 19px);
  max-width: 62ch;
  margin-bottom: 22px;
}
.about p strong { color: var(--text); font-weight: 600; }

.contact-block {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}

.contact-block h3 {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
  font-weight: 500;
}

.contact-block a, .contact-block p {
  font-size: 17px;
  color: var(--text);
  margin: 0;
}
.contact-block a { transition: opacity 0.25s var(--ease); }
.contact-block a:hover { opacity: 0.65; }

/* -------------------------------------------------------------------------
   9. RODAPE
   ------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 16px;
  padding-left: 0.3em;
}

.footer-note {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* Logo (imagem) no rodape */
.footer-logo { height: 24px; width: auto; display: block; }

/* Redes sociais no rodape */
.footer-socials { display: flex; gap: 18px; align-items: center; }
.footer-socials a {
  opacity: 0.7;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.footer-socials a:hover { opacity: 1; transform: translateY(-2px); }
.footer-socials img { width: 18px; height: 18px; }

/* -------------------------------------------------------------------------
   10. BOTAO VOLTAR AO TOPO (controle flutuante - circulo por convencao)
   ------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(20, 20, 20, 0.8);
  backdrop-filter: blur(6px);
  color: var(--text);
  font-size: 20px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), background 0.25s var(--ease);
  z-index: 40;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: rgba(40, 40, 40, 0.95); }

/* -------------------------------------------------------------------------
   11. ANIMACAO DE ENTRADA (fade-up quando o item aparece na tela)
   ------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* -------------------------------------------------------------------------
   12. RESPONSIVO
   ------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-also-grid > .case-card,
  .cases-also-track > .case-card { flex-basis: calc((100% - var(--gap)) / 2); }  /* 2 por vez */
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }

  /* Cabecalho vira: marca centralizada + botao hamburguer */
  .header-inner { grid-template-columns: 1fr auto 1fr; }
  .nav-toggle { display: flex; }

  .nav-left, .socials {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease), padding 0.4s var(--ease);
  }

  .site-header.open .nav-left { max-height: 240px; padding: 14px 0; }
  .site-header.open .socials { max-height: 120px; padding: 18px 0 24px; flex-direction: row; gap: 26px; justify-self: center; }

  .nav-left { grid-column: 1 / -1; }
  .socials { grid-column: 1 / -1; top: calc(var(--header-h) + 0px); }

  .nav-link { padding: 12px 0; font-size: 14px; }

  /* Empilha menu e redes: posiciona redes abaixo do menu quando aberto */
  .site-header.open .socials { top: calc(var(--header-h) + 152px); }

  .work-grid { grid-template-columns: 1fr; }
  .tile.span-2 { grid-column: auto; }
  .cases-grid { grid-template-columns: 1fr; }
  .cases-also-grid > .case-card,
  .cases-also-track > .case-card { flex-basis: 100%; }  /* 1 por vez no celular */

  .to-top { right: 18px; bottom: 18px; }
}

/* -------------------------------------------------------------------------
   13. ACESSIBILIDADE: respeita quem prefere menos movimento
   ------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .tile img, .case-card img { transition: none; }
  .tile:hover img, .case-card:hover img { transform: none; }
}