/* ============================================================
   Wallison Esley — Portfólio de Identidade Visual
   Tokens + sistema visual — tema escuro
   ============================================================ */

:root {
  /* cor */
  --paper: #101114;
  --paper-raised: #1B1D22;
  --ink: #F4F4F2;
  --ink-soft: #A7ABB5;
  --ink-faint: #7D818A;
  --line: #2B2D33;
  --line-strong: #3D4048;
  --accent: #5B6EF5;
  --accent-ink: #FFFFFF;
  --scrim: rgba(8, 9, 11, 0.78);

  /* tipografia — uma unica familia, variando peso/estilo */
  --font-display: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;

  /* medidas */
  --wrap: 1280px;
  --wrap-narrow: 780px;
  --gutter: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: var(--wrap-narrow); }

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  margin: 0;
  letter-spacing: -0.02em;
}

p { margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85em 1.5em;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease), border-color .25s var(--ease);
  border: 1px solid var(--ink);
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-1px); }

.btn--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn--accent:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--paper); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease), gap .2s var(--ease);
}
.link-arrow:hover { border-color: var(--accent); gap: 0.6em; color: var(--accent); }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}
/* O blur fica num pseudo-elemento (nao no proprio .site-header) porque
   backdrop-filter/transform num ancestral vira "containing block" de
   descendentes position:fixed — quebraria o painel do menu mobile. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(10px);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.logo em {
  font-style: italic;
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
}
.main-nav a:not(.btn) {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color .2s var(--ease);
}
.main-nav a:not(.btn):hover { color: var(--ink); }
.main-nav .btn { font-size: 0.85rem; padding: 0.7em 1.3em; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--ink);
}
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 780px) {
  .main-nav { position: fixed; inset: 76px 0 0 0; background: var(--paper); flex-direction: column; justify-content: flex-start; align-items: flex-start; padding: 32px var(--gutter); gap: 22px; transform: translateX(100%); transition: transform .35s var(--ease); }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav a:not(.btn) { font-size: 1.3rem; color: var(--ink); }
  .nav-toggle { display: block; }
}

/* ============================================================
   Hero — video de fundo com o texto sobreposto
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  min-height: min(86vh, 740px);
  display: flex;
  align-items: center;
  padding-block: clamp(96px, 13vw, 150px) clamp(56px, 8vw, 96px);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: url('/img/hero-poster.jpg') center/cover no-repeat;
}
.hero-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(6, 7, 10, .38) 0%, rgba(6, 7, 10, .58) 65%, rgba(6, 7, 10, .8) 100%);
}
.hero .wrap { position: relative; z-index: 2; }
.hero-content { max-width: 680px; }
.hero h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.4rem);
  margin-block: 0.4em 0.35em;
  max-width: 14ch;
  color: #fff;
}
.hero .eyebrow { color: rgba(255, 255, 255, 0.75); }
.hero .lede {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 46ch;
  margin-bottom: 1.8em;
}
.hero-actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero .link-arrow { color: #fff; border-color: rgba(255, 255, 255, 0.4); }
.hero .link-arrow:hover { color: var(--accent); border-color: var(--accent); }

@media (max-width: 720px) {
  .hero-bg video { display: none; }
  .hero { min-height: 560px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-bg video { display: none; }
}

/* ============================================================
   Section headings comuns
   ============================================================ */
.section { padding-block: clamp(56px, 8vw, 108px); }
.section + .section { border-top: 1px solid var(--line); }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: clamp(32px, 5vw, 56px);
  flex-wrap: wrap;
}
.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.section-head p { color: var(--ink-soft); max-width: 42ch; }

/* ============================================================
   Grade de projetos — imagem em destaque + nome sobreposto
   ============================================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(18px, 2.6vw, 32px);
}
.project-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--ink);
  aspect-ratio: 5 / 4;
  border-radius: 20px;
  overflow: hidden;
  background: var(--paper-raised);
  border: 1px solid var(--line);
}
.project-card-media { position: absolute; inset: 0; }
.project-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.project-card:hover .project-card-media img,
.project-card:focus-visible .project-card-media img { transform: scale(1.045); }

.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,7,9,.7) 0%, rgba(6,7,9,0) 42%);
  pointer-events: none;
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.project-card:hover::after,
.project-card:focus-visible::after { opacity: 1; }

.project-card-caption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 20px;
  border-radius: 999px;
  background: var(--scrim);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(100%);
  transition: opacity .35s var(--ease), transform .4s var(--ease);
}
.project-card:hover .project-card-caption,
.project-card:focus-visible .project-card-caption {
  opacity: 1;
  transform: translateY(0);
}
.pc-name,
.pc-city {
  font-weight: 400;
  font-size: 0.88rem;
  color: #fff;
}
.pc-city { color: rgba(255, 255, 255, 0.72); white-space: nowrap; }

@media (max-width: 720px) {
  .project-grid { grid-template-columns: 1fr; }
  .project-card { aspect-ratio: 4/3; }
}

/* ============================================================
   Como funciona
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 40px); }
.step { border-top: 1px solid var(--ink); padding-top: 20px; }
.step .num { font-family: var(--font-display); font-weight: 700; font-size: 1.6rem; color: var(--accent); }
.step h3 { font-size: 1.2rem; margin-block: 0.5em 0.4em; }
.step p { color: var(--ink-soft); font-size: 0.95rem; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }

/* ============================================================
   Sobre
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 0.9fr 1.4fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.about-mark {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--paper-raised);
  overflow: hidden;
}
.about-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 30%;
}
.about-copy p { color: var(--ink-soft); font-size: 1.05rem; margin-bottom: 1.1em; max-width: 56ch; }
.about-copy p:last-child { margin-bottom: 0; }
.about-copy strong { color: var(--ink); }
@media (max-width: 780px) { .about-grid { grid-template-columns: 1fr; } .about-mark { max-width: 200px; margin-inline: auto; } }

/* ============================================================
   CTA final + footer
   ============================================================ */
.cta-final {
  background: var(--accent);
  color: #fff;
  text-align: center;
  padding-block: clamp(56px, 9vw, 100px);
}
.cta-final .eyebrow { color: rgba(255, 255, 255, 0.7); }
.cta-final h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  max-width: 18ch;
  margin: 0.4em auto 0.7em;
  color: #fff;
}
.cta-final p { color: rgba(255, 255, 255, 0.85); margin-bottom: 1.8em; }
.cta-final .btn--accent { background: #fff; border-color: #fff; color: var(--accent); }
.cta-final .btn--accent:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.site-footer { padding-block: 40px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; font-size: 0.85rem; color: var(--ink-soft); }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 22px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--accent); }

/* ============================================================
   Fade de entrada ao rolar a tela
   Fica atras de uma classe posta via JS (.js-reveal na <html>): se o
   JS falhar ou nao rodar, o CSS abaixo nunca aplica e o conteudo
   permanece sempre visivel por padrao (progressive enhancement).
   ============================================================ */
.js-reveal .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.js-reveal .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   Página de projeto
   ============================================================ */
.project-hero { padding-block: 32px 0; }
.project-back { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink-soft); font-size: 0.88rem; margin-bottom: 28px; }
.project-back:hover { color: var(--accent); }
.project-cover { width: 100%; aspect-ratio: 16/9; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; margin: 0 0 clamp(28px, 4vw, 48px); }
.project-cover img { width: 100%; height: 100%; object-fit: cover; }

.project-head { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(24px, 4vw, 56px); padding-bottom: clamp(40px, 5vw, 64px); border-bottom: 1px solid var(--line); }
.project-head h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); margin-bottom: 0.3em; }
.project-meta-list { display: grid; gap: 14px; align-content: start; }
.project-meta-list dt { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); margin: 0; }
.project-meta-list dd { margin: 2px 0 0; font-size: 1rem; }

@media (max-width: 780px) { .project-head { grid-template-columns: 1fr; } }

.project-concept { padding-block: clamp(40px, 5vw, 64px); border-bottom: 1px solid var(--line); }
.project-concept p { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.3rem, 2.6vw, 1.7rem); line-height: 1.4; max-width: 40ch; }

.gallery { padding-block: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: 1fr; gap: clamp(20px, 3vw, 32px); }
.gallery figure { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: var(--paper-raised); }
.gallery figure img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform .5s var(--ease);
}
.gallery figure:hover img { transform: scale(1.015); }

.project-nav { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.project-nav a { padding: clamp(28px, 4vw, 44px) var(--gutter); text-decoration: none; display: flex; flex-direction: column; gap: 6px; transition: background .25s var(--ease); }
.project-nav a:hover { background: var(--paper-raised); }
.project-nav .dir { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); }
.project-nav .next-name { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; }
.project-nav .next { text-align: right; align-items: flex-end; border-left: 1px solid var(--line); }
@media (max-width: 640px) {
  .project-nav { grid-template-columns: 1fr; }
  .project-nav .next { border-left: none; border-top: 1px solid var(--line); text-align: left; align-items: flex-start; }
}