/* Hands Arquitetura — estilos do site (sem dependências externas) */
:root {
  --paper: #f5f2ec;
  --white: #ffffff;
  --ink: #141414;
  --ink-2: #4a4743;
  --muted: #8a857d;
  --line: #dcd6cc;
  --kraft: #c69c6d;
  --sans: "Helvetica Neue", "Segoe UI", Arial, system-ui, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --gutter: clamp(20px, 4vw, 56px);
  --max: 1440px;
  --header-h: 76px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; font-weight: 400; letter-spacing: -0.01em; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: var(--ink); color: var(--white); padding: 8px 14px; }

/* ---------- tipografia utilitária ---------- */
.eyebrow { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.lead { font: 400 clamp(26px, 3.4vw, 46px)/1.22 var(--serif); letter-spacing: -0.015em; color: var(--ink); }
.lead em { font-style: italic; color: var(--ink-2); }
.link-arrow { display: inline-flex; align-items: center; gap: .6em; font-size: 14px; letter-spacing: .04em; border-bottom: 1px solid currentColor; padding-bottom: 2px; transition: gap .25s ease; }
.link-arrow::after { content: "→"; }
.link-arrow:hover { gap: 1em; }

/* ---------- cabeçalho ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); }
.site-header .wrap { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 40px; height: 40px; }
.brand span { font-size: 15px; letter-spacing: .22em; text-transform: uppercase; }
.brand b { font-weight: 600; }
.nav { display: flex; align-items: center; gap: clamp(18px, 2.6vw, 40px); font-size: 14px; letter-spacing: .06em; }
.nav a { position: relative; padding: 6px 0; }
.nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: currentColor; transition: right .3s ease; }
.nav a:hover::after, .nav a[aria-current="page"]::after { right: 0; }
.nav .social { color: var(--muted); }
.header-right { display: flex; align-items: center; gap: clamp(14px, 2vw, 28px); }

/* seletor de idioma */
.lang { position: relative; }
.lang-toggle {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 10px; cursor: pointer;
  background: transparent; border: 1px solid var(--line); border-radius: 999px; color: var(--ink);
  font: 500 12px/1 var(--sans); letter-spacing: .1em; transition: border-color .2s ease, background .2s ease;
}
.lang-toggle:hover, .lang-toggle[aria-expanded="true"] { border-color: var(--ink); }
.lang-toggle svg { display: block; }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 60; min-width: 168px;
  list-style: none; margin: 0; padding: 6px; background: var(--white); border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgb(20 20 20 / .1);
}
.lang-menu a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; font-size: 14px; }
.lang-menu a span { font-size: 11px; letter-spacing: .12em; color: var(--muted); width: 20px; }
.lang-menu a:hover { background: var(--paper); }
.lang-menu a[aria-current="true"] { font-weight: 600; }
.lang-menu a[aria-current="true"]::after { content: "✓"; margin-left: auto; color: var(--kraft); }
.footer-langs { letter-spacing: .1em; }
.footer-langs a:hover { color: var(--ink); }

.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 1.5px; background: var(--ink); margin: 6px 0; transition: transform .3s ease, opacity .3s ease; }

/* ---------- home: abertura ---------- */
.hero { padding-block: clamp(48px, 9vw, 120px) clamp(40px, 7vw, 96px); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 6vw, 96px); align-items: end; }
.hero h1 { font: 400 clamp(44px, 7.2vw, 112px)/.98 var(--serif); letter-spacing: -0.03em; }
.hero h1 em { font-style: italic; color: var(--kraft); }
.hero .intro { margin-top: clamp(28px, 4vw, 48px); max-width: 34em; color: var(--ink-2); font-size: 17px; }
.hero .intro + .link-arrow { margin-top: 8px; }
.hero figure { margin: 0; }
.hero figure img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.hero figcaption { margin-top: 10px; font-size: 12px; color: var(--muted); letter-spacing: .04em; }

/* ---------- seções ---------- */
.section { padding-block: clamp(56px, 9vw, 128px); border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: clamp(32px, 5vw, 64px); flex-wrap: wrap; }
.section-head h2 { font: 400 clamp(30px, 4vw, 56px)/1.05 var(--serif); letter-spacing: -0.02em; margin-top: 10px; }

/* ---------- cartões de projeto ---------- */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px) clamp(16px, 2.4vw, 36px); }
.project-card { display: flex; flex-direction: column; gap: 14px; }
.project-card .media { overflow: hidden; background: var(--white); aspect-ratio: 4 / 5; }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s cubic-bezier(.2,.7,.2,1), filter .6s ease; filter: grayscale(.25); }
.project-card:hover img { transform: scale(1.04); filter: grayscale(0); }
.project-card .meta { display: flex; justify-content: space-between; gap: 12px; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.project-card h3 { font: 400 24px/1.2 var(--serif); }
.project-card p { color: var(--ink-2); font-size: 15px; margin: 0; }
.project-card .more { font-size: 13px; letter-spacing: .06em; color: var(--ink); opacity: 0; transform: translateY(-4px); transition: opacity .3s ease, transform .3s ease; }
.project-card:hover .more, .project-card:focus-visible .more { opacity: 1; transform: none; }
.projects .offset { margin-top: clamp(0px, 6vw, 96px); }

/* ---------- escritório ---------- */
.studio { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(32px, 6vw, 96px); align-items: center; }
.studio figure { margin: 0; }
.studio img { width: 100%; aspect-ratio: 1; object-fit: cover; filter: grayscale(1); }
.studio figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); }
.studio .lead { margin: 14px 0 28px; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 0 0 36px; padding: 0; list-style: none; }
.pillars li { border-top: 1px solid var(--ink); padding-top: 14px; font-size: 15px; color: var(--ink-2); }
.pillars b { display: block; font-weight: 500; color: var(--ink); margin-bottom: 4px; }

/* ---------- faixa instagram ---------- */
.social-band { background: var(--ink); color: var(--paper); }
.social-band .section-head h2 { color: var(--paper); }
.social-band .eyebrow { color: #a49e95; }
.strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.strip a { overflow: hidden; aspect-ratio: 1; }
.strip img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); transition: filter .5s ease, transform .8s ease; }
.strip a:hover img { filter: none; transform: scale(1.05); }

/* ---------- contato ---------- */
.contact-cta { text-align: center; }
.contact-cta h2 { font: 400 clamp(36px, 6vw, 88px)/1.02 var(--serif); letter-spacing: -0.03em; margin: 14px auto 28px; max-width: 14em; }
.contact-cta h2 em { font-style: italic; color: var(--kraft); }
.contact-cta .actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border: 1px solid var(--ink); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; transition: background .25s ease, color .25s ease; }
.button:hover, .button.solid { background: var(--ink); color: var(--paper); }
.button.solid:hover { background: transparent; color: var(--ink); }

/* ---------- páginas internas ---------- */
.page-head { padding-block: clamp(56px, 9vw, 120px) clamp(24px, 4vw, 48px); }
.page-head h1 { font: 400 clamp(40px, 6.4vw, 96px)/1.02 var(--serif); letter-spacing: -0.03em; margin-top: 14px; max-width: 15em; }
.page-head h1 em { font-style: italic; color: var(--kraft); }
.page-head .intro { margin-top: 24px; max-width: 36em; color: var(--ink-2); font-size: 18px; }
.section.tight { border-top: 0; padding-top: 0; }
.actions { display: flex; gap: 16px; flex-wrap: wrap; }

.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: clamp(32px, 5vw, 56px); }
.filters button {
  font: inherit; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; cursor: pointer;
  padding: 10px 18px; border: 1px solid var(--line); background: transparent; color: var(--ink-2);
  transition: border-color .2s ease, background .2s ease, color .2s ease;
}
.filters button span { color: var(--muted); margin-left: 4px; }
.filters button:hover { border-color: var(--ink); color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.filters button[aria-pressed="true"] span { color: #a49e95; }

/* página de projeto */
.project-head { padding-block: clamp(40px, 7vw, 96px) clamp(28px, 4vw, 48px); }
.back { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.back:hover { color: var(--ink); }
.project-head h1 { font: 400 clamp(38px, 6vw, 88px)/1.02 var(--serif); letter-spacing: -0.03em; margin-top: 20px; max-width: 14em; }
.project-head .intro { margin-top: 20px; max-width: 34em; font-size: 19px; color: var(--ink-2); }
.project-body { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.project-figure { margin: 0; background: var(--white); }
.project-figure img { width: 100%; }
.project-text { position: sticky; top: calc(var(--header-h) + 32px); font-size: 17px; color: var(--ink-2); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; margin: 0 0 36px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.facts dt { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.facts dd { margin: 4px 0 0; color: var(--ink); }
.project-nav { display: flex; justify-content: space-between; gap: 24px; padding-block: clamp(48px, 7vw, 96px) 0; }
.project-nav a { display: flex; flex-direction: column; gap: 6px; font: 400 clamp(20px, 2.4vw, 30px)/1.2 var(--serif); }
.project-nav a:last-child { text-align: right; }
.project-nav span { font: 400 12px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.project-nav a:hover { color: var(--kraft); }

/* escritório */
.prose { font-size: 18px; color: var(--ink-2); max-width: 36em; }
.pillars.large { grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 56px); margin: 0; }
.pillars.large li { font-size: 17px; padding-top: 20px; }
.pillars.large b { font: 400 26px/1.2 var(--serif); margin-bottom: 10px; }
.process { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(20px, 3vw, 40px); }
.process li { border-top: 1px solid var(--line); padding-top: 18px; color: var(--ink-2); }
.process span { display: block; font: 400 13px var(--sans); letter-spacing: .12em; color: var(--kraft); margin-bottom: 18px; }
.process b { display: block; font: 400 26px/1.2 var(--serif); color: var(--ink); margin-bottom: 8px; }

/* mídia */
.media-list { display: grid; gap: clamp(28px, 4vw, 48px); }
.media-item { display: grid; grid-template-columns: 220px 1fr; gap: clamp(20px, 4vw, 48px); align-items: center; padding-bottom: clamp(28px, 4vw, 48px); border-bottom: 1px solid var(--line); }
.media-item img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: grayscale(.3); transition: filter .5s ease; }
.media-item:hover img { filter: none; }
.media-item h3 { font: 400 clamp(24px, 3vw, 36px)/1.15 var(--serif); margin: 8px 0 10px; }
.media-item p { color: var(--ink-2); }

/* contato */
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.channels { margin: 0; display: grid; gap: 22px; }
.channels dt { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.channels dd { margin: 4px 0 0; font: 400 24px/1.3 var(--serif); }
.channels a:hover { color: var(--kraft); }
.contact-grid .lead { margin-bottom: 28px; }

[hidden] { display: none !important; }

/* ---------- rodapé ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: 56px 32px; font-size: 14px; color: var(--ink-2); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid h4 { margin: 0 0 12px; font-size: 12px; font-weight: 500; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.footer-grid a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.footer-brand p { max-width: 22em; margin-top: 16px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }

/* ---------- animação de entrada ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .project-card img, .strip img { transition: none; }
}

/* ---------- responsivo ---------- */
@media (max-width: 1000px) {
  .projects { grid-template-columns: repeat(2, 1fr); }
  .projects .offset { margin-top: 0; }
  .strip { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  :root { --header-h: 64px; }
  .menu-toggle { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: flex-start;
    gap: 4px; padding: 16px var(--gutter) 28px; background: var(--paper); border-bottom: 1px solid var(--line);
    font-size: 22px; font-family: var(--serif); letter-spacing: 0;
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
  }
  .menu-open .nav { opacity: 1; transform: none; pointer-events: auto; }
  .menu-open .menu-toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
  .menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  .hero-grid, .studio { grid-template-columns: 1fr; }
  .hero figure { order: -1; max-width: 420px; }
  .projects { grid-template-columns: 1fr; }
  .project-card .more { opacity: 1; transform: none; }
  .pillars, .pillars.large, .process { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .project-body, .contact-grid { grid-template-columns: 1fr; }
  .project-text { position: static; }
  .media-item { grid-template-columns: 110px 1fr; }
  .project-nav a { font-size: 18px; }
}