@charset "UTF-8";
/* =============================================================
   Mariane Bitencourt | Arquitetura
   Direção: bone quente com faixa espresso no rodapé.
   Sistema: cantos retos (radius 0) em toda a página.
   Tipografia: Archivo (display e corpo), IBM Plex Mono (micro-labels).
   Acento único: marrom quente, em marcadores, links e foco.
   ============================================================= */

@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('../fonts/archivo-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal; font-weight: 400; font-display: swap;
  src: url('../fonts/plexmono-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal; font-weight: 500; font-display: swap;
  src: url('../fonts/plexmono-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- tokens ---------- */

:root {
  color-scheme: light dark;

  --display: 'Archivo', ui-sans-serif, system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --paper:    #f5efe4;
  --paper-2:  #ece4d5;
  --paper-3:  #e3d9c7;
  --espresso: #241d17;
  --espresso-2: #191410;

  --line:      #d9cfba;
  --line-soft: #e6ddcb;

  --text:     #2b241d;
  --text-mid: #63564a;
  --text-lo:  #645848; /* 6.05:1 sobre --paper, 4.95:1 sobre --paper-3 */

  --accent:     #6f4e2e;
  --accent-hov: #543a21;
  --accent-ink: #f5efe4;

  /* cores fixas usadas por cima do vídeo, iguais nos dois temas */
  --on-media:     #f7f2e8;
  --on-media-mid: #d7cdbb;

  --gutter: clamp(1.25rem, 4.5vw, 4.5rem);
  --nav-h: 64px;
  --ease: cubic-bezier(.16, 1, .3, 1);

  --step--2: .68rem;
  --step--1: clamp(.82rem, .78rem + .2vw, .93rem);
  --step-0:  clamp(.98rem, .93rem + .25vw, 1.08rem);
  --step-1:  clamp(1.18rem, 1.06rem + .5vw, 1.5rem);
  --step-2:  clamp(1.7rem, 1.3rem + 1.7vw, 2.9rem);
  --step-3:  clamp(2.2rem, 1.5rem + 3vw, 4.4rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:    #1e1813;
    --paper-2:  #262019;
    --paper-3:  #2e2720;
    --espresso: #100c09;
    --espresso-2: #0b0806;

    --line:      #3a3229;
    --line-soft: #2c251e;

    --text:     #efe7d9;
    --text-mid: #b3a794;
    --text-lo:  #998e7b; /* 5.45:1 sobre --paper, 5.00:1 sobre --paper-2 */

    --accent:     #c89a68;
    --accent-hov: #dcb083;
    --accent-ink: #1e1813;
  }
}

/* ---------- base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 1rem);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--display);
  font-size: var(--step-0);
  font-weight: 400;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; }
figure { margin: 0; }

h1, h2, h3 { margin: 0; font-weight: 500; letter-spacing: -.025em; line-height: 1.04; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }

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

.wrap { width: 100%; max-width: 1560px; margin-inline: auto; padding-inline: var(--gutter); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}

.skip {
  position: absolute; top: -100%; left: var(--gutter); z-index: 100;
  padding: .75rem 1.25rem; background: var(--espresso); color: var(--paper);
  font-family: var(--mono); font-size: var(--step--2);
  letter-spacing: .14em; text-transform: uppercase;
}
.skip:focus { top: .75rem; }

/* micro-label com marcador, assinatura da direção visual */
.tag {
  display: flex; align-items: center; gap: .55rem;
  font-family: var(--mono); font-size: var(--step--2); font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--text-lo);
}
.tag::before { content: '::'; letter-spacing: 0; color: var(--accent); }

/* ---------- botões ---------- */

.btn {
  display: inline-flex; align-items: stretch;
  border: 1px solid currentColor; border-radius: 0;
  font-family: var(--mono); font-size: var(--step--2); font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase;
  /* line-height igual a min-height centraliza o texto anônimo do botão,
     e o stretch faz o fio vertical do chevron ocupar a altura toda */
  min-height: 3rem; line-height: 3rem; cursor: pointer;
  padding-left: 1.15rem;
  background: none; color: var(--text);
  transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.btn > i {
  font-style: normal; font-size: 1.05em; line-height: 1;
  display: flex; align-items: center;
  margin-left: 1.4rem; padding-inline: .85rem;
  border-left: 1px solid currentColor;
}
.btn:hover { background: var(--espresso); color: var(--paper); border-color: var(--espresso); }
.btn:active { transform: translateY(1px); }

.btn--solid { background: var(--espresso); color: var(--paper); border-color: var(--espresso); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn--solid[disabled] { opacity: .55; cursor: progress; }
.btn--block { width: 100%; justify-content: space-between; }

/* ---------- nav ---------- */

.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: background-color .35s var(--ease), border-color .35s var(--ease);
}
.nav.is-solid {
  background: var(--paper); /* fallback sem color-mix */
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.nav__inner {
  height: 100%; max-width: 1560px; margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex; align-items: center; gap: clamp(1rem, 3vw, 3rem);
}

.nav__brand { display: flex; align-items: center; gap: .7rem; margin-right: auto; color: var(--on-media); }
.nav__brand-mark {
  font-family: var(--mono); font-weight: 500; font-size: .74rem;
  letter-spacing: .1em;
  border: 1px solid currentColor; padding: .3rem .42rem; line-height: 1;
}
.nav__brand-name { font-size: var(--step--1); font-weight: 500; letter-spacing: -.01em; }

.nav__links { display: flex; gap: clamp(1rem, 2.2vw, 2.1rem); }
.nav__links a, .nav__contact {
  font-family: var(--mono); font-size: var(--step--2); font-weight: 400;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--on-media-mid);
  transition: color .22s var(--ease);
}
.nav__contact { color: var(--on-media); border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.nav__links a:hover, .nav__contact:hover { color: var(--accent); }

.nav.is-solid .nav__brand { color: var(--text); }
.nav.is-solid .nav__links a { color: var(--text-mid); }
.nav.is-solid .nav__contact { color: var(--text); }

.nav__toggle {
  display: none; width: 38px; height: 38px; padding: 0;
  background: none; border: 1px solid currentColor; border-radius: 0;
  color: var(--on-media); cursor: pointer;
  align-items: center; justify-content: center;
}
.nav.is-solid .nav__toggle { color: var(--text); }
.nav__toggle-bar, .nav__toggle-bar::before, .nav__toggle-bar::after {
  content: ''; display: block; width: 15px; height: 1px; background: currentColor;
  transition: transform .3s var(--ease);
}
.nav__toggle-bar::before { transform: translateY(-5px); }
.nav__toggle-bar::after  { transform: translateY(4px); }
.nav__toggle[aria-expanded='true'] .nav__toggle-bar { background: transparent; }
.nav__toggle[aria-expanded='true'] .nav__toggle-bar::before { transform: rotate(45deg); }
.nav__toggle[aria-expanded='true'] .nav__toggle-bar::after  { transform: rotate(-45deg); }

.nav__mobile {
  display: none; flex-direction: column;
  background: var(--paper); border-bottom: 1px solid var(--line);
  padding: .25rem var(--gutter) 1.25rem;
}
.nav__mobile a {
  padding: .95rem 0; border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono); font-size: var(--step--1);
  letter-spacing: .16em; text-transform: uppercase; color: var(--text);
}
.nav__mobile a:last-child { border-bottom: 0; color: var(--accent); }

@media (max-width: 900px) {
  .nav__links, .nav__contact { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav__mobile:not([hidden]) { display: flex; }
  .nav:has(.nav__mobile:not([hidden])) { height: auto; background: var(--paper); backdrop-filter: none; }
  .nav:has(.nav__mobile:not([hidden])) .nav__brand,
  .nav:has(.nav__mobile:not([hidden])) .nav__toggle { color: var(--text); }
}

/* =============================================================
   HERO
   O track define a distância de rolagem; o stage fica preso na
   viewport enquanto o JS move video.currentTime.
   --p (0 a 1) é escrito pelo JS a cada frame.
   ============================================================= */

.hero__track { position: relative; height: 340vh; }

.hero__stage {
  position: sticky; top: 0;
  height: 100dvh; overflow: hidden;
  background: var(--espresso-2);

  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: calc(var(--nav-h) + clamp(1rem, 4vh, 2.75rem)) auto minmax(0, 1fr) auto;
  grid-template-areas:
    ".    .   "
    "rail mark"
    ".    .   "
    "foot foot";
  column-gap: clamp(1.25rem, 3.5vw, 3.5rem);
  padding-inline: var(--gutter);
  padding-bottom: clamp(1.25rem, 3.5vh, 2.25rem);
}

.hero__video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; transform: scale(1.02);
}

.hero__scrim {
  position: absolute; inset: 0; pointer-events: none;
  background:
    /* Véu geral: o render é claro demais para texto branco sem ele.
       Medido: sem o véu, o pior pixel sob a assinatura dá 1,61:1. */
    linear-gradient(rgba(14,10,7,.14), rgba(14,10,7,.14)),
    /* faixa da assinatura */
    linear-gradient(to bottom, rgba(14,10,7,.70) 0%, rgba(14,10,7,.62) 16%,
                               rgba(14,10,7,.52) 32%, rgba(14,10,7,.18) 46%,
                               rgba(14,10,7,0) 62%),
    linear-gradient(to top,    rgba(14,10,7,.90) 0%, rgba(14,10,7,.58) 22%,
                               rgba(14,10,7,.10) 44%, rgba(14,10,7,0) 58%),
    linear-gradient(to right,  rgba(14,10,7,.50) 0%, rgba(14,10,7,.14) 44%, rgba(14,10,7,0) 72%);
}

/* trilho de números à esquerda */
.rail {
  grid-area: rail; z-index: 2;
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: clamp(1rem, 2.6vh, 1.9rem);
  opacity: calc(1 - var(--p, 0) * 4.2);
  transition: opacity .2s linear;
}
.rail b {
  display: block;
  font-size: clamp(1.15rem, 1.9vw, 1.65rem); font-weight: 600;
  letter-spacing: -.02em; line-height: 1; color: var(--on-media);
  text-shadow: 0 1px 16px rgba(12,9,6,.8);
}
.rail span {
  display: block; margin-top: .4rem;
  font-family: var(--mono); font-size: var(--step--2);
  letter-spacing: .16em; text-transform: uppercase; color: var(--on-media-mid);
  max-width: 9ch;
  text-shadow: 0 1px 16px rgba(12,9,6,.85);
}

/* assinatura em escala grande */
.hero__mark {
  grid-area: mark; z-index: 2; align-self: start;
  display: grid; justify-items: start;
  text-transform: uppercase;
  font-weight: 600; line-height: .84;
  color: var(--on-media);
  opacity: calc(1 - var(--p, 0) * 3.6);
  transform: translate3d(0, calc(var(--p, 0) * -2.5rem), 0);
  will-change: opacity, transform;
  /* halo suave: garante o contraste nos quadros mais claros do render */
  text-shadow: 0 2px 46px rgba(12,9,6,.55), 0 1px 3px rgba(12,9,6,.3);
}
.hero__mark span:first-child { font-size: clamp(3rem, 12.5vw, 12.5rem); letter-spacing: -.045em; }
.hero__mark span:last-child  { font-size: clamp(1.95rem, 8.1vw, 8.1rem); letter-spacing: .012em; font-weight: 500; }

/* rodapé do hero */
.hero__foot {
  grid-area: foot; z-index: 2; align-self: end;
  display: flex; flex-wrap: wrap; align-items: flex-end;
  justify-content: space-between; gap: clamp(1.25rem, 3vw, 3rem);
  opacity: calc(1 - var(--p, 0) * 4.2);
  transform: translate3d(0, calc(var(--p, 0) * -2rem), 0);
  will-change: opacity, transform;
}
.hero__stage.is-past .hero__foot { pointer-events: none; }

.hero__claim {
  font-size: clamp(1.3rem, 2.5vw, 2.15rem); font-weight: 500;
  letter-spacing: -.028em; line-height: 1.08;
  text-transform: uppercase; color: var(--on-media);
  text-shadow: 0 2px 26px rgba(12,9,6,.6);
}
.hero__foot-left { display: grid; gap: clamp(1rem, 2.4vh, 1.75rem); justify-items: start; }
.hero__foot-left .btn {
  background: var(--espresso); color: var(--paper); border-color: var(--espresso);
}
.hero__foot-left .btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.hero__note {
  flex: 0 1 34ch;
  font-family: var(--mono); font-size: var(--step--2); line-height: 1.75;
  letter-spacing: .04em; color: var(--on-media-mid);
  text-shadow: 0 1px 16px rgba(12,9,6,.85);
}

.hero__end {
  grid-area: foot; z-index: 2; align-self: end;
  max-width: 24ch;
  font-size: clamp(1.3rem, 2.5vw, 2.15rem); font-weight: 500;
  letter-spacing: -.028em; line-height: 1.08;
  text-transform: uppercase; color: var(--on-media);
  text-shadow: 0 2px 26px rgba(12,9,6,.6);
  opacity: calc((var(--p, 0) - .70) * 5);
  transform: translate3d(0, calc((1 - var(--p, 0)) * 1.25rem), 0);
  will-change: opacity, transform; pointer-events: none;
}
.hero__end::after {
  content: ''; display: block; width: 3.5rem; height: 1px;
  margin-top: 1.1rem; background: var(--on-media-mid);
}

.hero__buffer {
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: rgba(247,242,232,.14);
  transition: opacity .5s var(--ease);
}
.hero__buffer span {
  display: block; height: 100%; width: 100%; background: var(--on-media);
  transform: scaleX(0); transform-origin: left; transition: transform .3s linear;
}
.hero__stage.is-buffered .hero__buffer { opacity: 0; }

/* Sem vídeo (movimento reduzido, save-data ou falha de carregamento):
   o hero vira uma imagem estática de uma viewport. */
.hero__track.is-static { height: 100dvh; }
.hero__track.is-static .hero__stage { position: relative; }
.hero__track.is-static .hero__end,
.hero__track.is-static .hero__buffer { display: none; }
.hero__track.is-static .hero__mark,
.hero__track.is-static .hero__foot,
.hero__track.is-static .rail { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .hero__stage {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "." "mark" "rail" "foot";
    row-gap: clamp(1rem, 3vh, 2rem);
  }
  .rail { grid-auto-flow: column; justify-content: start; gap: clamp(1.25rem, 6vw, 2.5rem); align-self: start; }
  .rail span { max-width: none; }
  .hero__note { display: none; }
  .hero__foot-left .btn { width: 100%; justify-content: space-between; }
}

/* ---------- estúdio ---------- */

.sobre { padding-block: clamp(4.5rem, 13vh, 9rem); }
.sobre .tag { margin-bottom: clamp(2rem, 5vh, 3.5rem); }

.sobre__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 4.5rem); }
.sobre__media { background: var(--paper-3); overflow: hidden; }
.sobre__media img { width: 100%; height: 100%; object-fit: cover; }

.sobre__text { display: grid; gap: 1.35rem; align-content: start; max-width: 64ch; }
.sobre__text p { font-size: var(--step-1); line-height: 1.5; color: var(--text-mid); }
.sobre__text p:first-child { color: var(--text); }

.stats {
  margin: clamp(3rem, 8vh, 5rem) 0 0; display: grid; gap: 0;
  border-top: 1px solid var(--line);
}
.stats > div {
  display: grid; grid-template-columns: 11rem 1fr; gap: 1rem;
  padding: 1.15rem 0; border-bottom: 1px solid var(--line-soft);
}
.stats dt {
  font-family: var(--mono); font-size: var(--step--2);
  letter-spacing: .18em; text-transform: uppercase; color: var(--text-lo);
  align-self: center;
}
.stats dd { margin: 0; font-size: var(--step-0); color: var(--text); align-self: center; }

@media (min-width: 900px) {
  .sobre__grid { grid-template-columns: 4fr 8fr; align-items: start; }
  .stats { grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); }
  .stats > div {
    grid-template-columns: 1fr; gap: .5rem; border-bottom: 0;
    padding: 1.6rem clamp(1rem, 2vw, 2rem) 1.6rem 0;
    border-left: 1px solid var(--line-soft);
    padding-left: clamp(1rem, 2vw, 2rem);
  }
  .stats > div:first-child { border-left: 0; padding-left: 0; }
}

/* ---------- método ---------- */

.metodo {
  padding-block: clamp(4.5rem, 13vh, 9rem);
  background: var(--paper-2);
  border-block: 1px solid var(--line);
}
.metodo__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 6vw, 5rem); }
.metodo__head h2 { font-size: var(--step-2); font-weight: 500; }
.metodo__head p {
  margin-top: 1.25rem; max-width: 34ch;
  font-family: var(--mono); font-size: var(--step--2);
  line-height: 1.85; letter-spacing: .04em; color: var(--text-lo);
}

.metodo__list details { border-top: 1px solid var(--line); }
.metodo__list details:last-child { border-bottom: 1px solid var(--line); }
.metodo__list summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.4rem 0;
  font-size: var(--step-1); font-weight: 500; letter-spacing: -.015em;
  transition: color .22s var(--ease);
}
.metodo__list summary::-webkit-details-marker { display: none; }
.metodo__list summary:hover { color: var(--accent); }
.metodo__list summary i {
  font-style: normal; font-size: 1.5em; line-height: 0; color: var(--text-lo);
  transition: transform .3s var(--ease);
}
.metodo__list details[open] summary i { transform: rotate(90deg); }
.metodo__list details p {
  padding-bottom: 1.6rem; max-width: 56ch;
  color: var(--text-mid); line-height: 1.68;
}

@media (min-width: 900px) {
  .metodo__grid { grid-template-columns: 4fr 8fr; align-items: start; }
}

/* ---------- espaços ---------- */

.mosaico { padding-block: clamp(4.5rem, 13vh, 9rem); }
.mosaico .tag { margin-bottom: clamp(1.75rem, 4vh, 2.75rem); }
.mosaico__head { max-width: 62ch; margin-bottom: clamp(2.5rem, 6vh, 4rem); }
.mosaico__head h2 { font-size: var(--step-2); font-weight: 500; }
.mosaico__head p { margin-top: 1.25rem; max-width: 52ch; color: var(--text-mid); font-size: var(--step-0); }

.mosaico__grid {
  display: grid; grid-template-columns: 1fr;
  gap: clamp(1rem, 2.4vw, 2rem);
}
.mosaico__grid figure { overflow: hidden; background: var(--paper-3); }
.mosaico__grid img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1s var(--ease);
}
.mosaico__grid figure:hover img { transform: scale(1.04); }

@media (min-width: 900px) {
  .mosaico__grid { grid-template-columns: repeat(12, 1fr); }
  .mosaico__grid > :nth-child(1) { grid-column: 1 / 5;  grid-row: 1; }
  .mosaico__grid > :nth-child(2) { grid-column: 5 / 8;  grid-row: 1; margin-top: clamp(2rem, 5vw, 4.5rem); }
  .mosaico__grid > :nth-child(3) { grid-column: 9 / 13; grid-row: 1 / 3; }
  .mosaico__grid > :nth-child(4) { grid-column: 1 / 6;  grid-row: 2; }
  .mosaico__grid > :nth-child(5) { grid-column: 6 / 9;  grid-row: 2; }
  .mosaico__grid > :nth-child(6) { grid-column: 4 / 9;  grid-row: 3; }
  .mosaico__grid > :nth-child(3) img { min-height: 100%; }
}

/* ---------- projetos ---------- */

.projetos {
  padding-block: clamp(4.5rem, 13vh, 9rem);
  background: var(--paper-2);
  border-block: 1px solid var(--line);
}
.projetos__title { font-size: var(--step-2); font-weight: 500; margin-bottom: clamp(2.5rem, 7vh, 4.5rem); }

.projetos__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.25rem, 4.5vw, 3.5rem); }

.proj figure { overflow: hidden; background: var(--paper-3); }
.proj img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.proj a:hover img { transform: scale(1.035); }

.proj__meta { margin-top: 1.05rem; padding-top: 1.05rem; border-top: 1px solid var(--line); }
.proj__meta h3 { font-size: var(--step-1); font-weight: 500; transition: color .22s var(--ease); }
.proj a:hover .proj__meta h3 { color: var(--accent); }
.proj__meta p {
  margin-top: .45rem;
  font-family: var(--mono); font-size: var(--step--2);
  letter-spacing: .1em; text-transform: uppercase; color: var(--text-lo);
}

@media (min-width: 900px) {
  .projetos__grid { grid-template-columns: repeat(12, 1fr); }
  .projetos__grid > :nth-child(1) { grid-column: 1 / 8;  align-self: end; }
  .projetos__grid > :nth-child(2) { grid-column: 9 / 13; }
  .projetos__grid > :nth-child(3) { grid-column: 2 / 8;  margin-top: clamp(1.5rem, 5vw, 4rem); }
  .projetos__grid > :nth-child(4) { grid-column: 8 / 13; align-self: end; }
}

/* ---------- contato ---------- */

.contato { padding-block: clamp(4.5rem, 13vh, 9rem); }
.contato__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 6vw, 5rem); }
.contato__media { background: var(--paper-3); overflow: hidden; }
.contato__media img { width: 100%; height: 100%; object-fit: cover; }

.contato__form .tag { margin-bottom: 1.5rem; }
.contato__form h2 { font-size: var(--step-3); font-weight: 500; text-transform: uppercase; letter-spacing: -.035em; }
.contato__lede { margin-top: 1.5rem; max-width: 42ch; color: var(--text-mid); }

@media (min-width: 900px) {
  /* stretch faz a imagem acompanhar a altura do formulário */
  .contato__grid { grid-template-columns: 5fr 7fr; align-items: stretch; }
  .contato__media { height: 100%; }
}

/* ---------- formulário ---------- */

.form { display: grid; gap: 1.6rem; margin-top: clamp(2.25rem, 5vh, 3.25rem); }

.field { display: grid; gap: .45rem; }
.field label {
  font-family: var(--mono); font-size: var(--step--2); font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase; color: var(--text-lo);
}
.field__help { font-size: var(--step--1); color: var(--text-lo); margin: 0; }

.field input, .field select, .field textarea {
  width: 100%; padding: .7rem 0;
  border: 0; border-bottom: 1px solid var(--line); border-radius: 0;
  background: none; color: var(--text);
  font: inherit; font-size: var(--step-0);
  transition: border-color .22s var(--ease);
}
.field select { padding-inline-end: .5rem; }
.field textarea { resize: vertical; min-height: 4.5rem; }

.field input:hover, .field select:hover, .field textarea:hover { border-bottom-color: var(--text-lo); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  outline: none; border-bottom-color: var(--accent);
  box-shadow: 0 1px 0 0 var(--accent);
}
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { border-bottom-color: var(--accent); }
.field__error { margin: 0; font-size: var(--step--1); color: var(--accent); }

.form__status {
  margin: 0; padding: .9rem 1rem; border: 1px solid var(--line);
  font-size: var(--step--1);
}
.form__status.is-ok  { border-color: var(--accent); color: var(--text); }
.form__status.is-err { border-color: var(--accent); color: var(--accent); }

/* ---------- rodapé ---------- */

.footer {
  background: var(--espresso-2); color: #d9cdb8;
  padding-block: clamp(3rem, 9vh, 5.5rem);
}
.footer__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 3rem); }

.footer__mark {
  font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 600;
  line-height: .95; letter-spacing: -.03em; text-transform: uppercase; color: #f5efe4;
}
.footer__role {
  margin-top: .8rem;
  font-family: var(--mono); font-size: var(--step--2);
  letter-spacing: .18em; text-transform: uppercase; color: #a2937c;
}

.footer__nav { display: grid; gap: .65rem; align-content: start; }
.footer__col { display: grid; gap: .65rem; align-content: start; }
.footer__label {
  font-family: var(--mono); font-size: var(--step--2);
  letter-spacing: .18em; text-transform: uppercase; color: #a2937c;
  margin-bottom: .2rem;
}
.footer a, .footer span { font-size: var(--step--1); color: #d9cdb8; }
.footer__nav a { font-family: var(--mono); letter-spacing: .12em; text-transform: uppercase; font-size: var(--step--2); }
.footer a { transition: color .22s var(--ease); }
.footer a:hover { color: #f5efe4; }

@media (min-width: 760px) {
  .footer__grid { grid-template-columns: 2fr 1fr 1.4fr 1fr; }
}

/* ---------- reveal ---------- */

[data-reveal] {
  opacity: 0; transform: translate3d(0, 1.5rem, 0);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- movimento reduzido ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .hero__mark, .hero__foot, .rail { opacity: 1; transform: none; }
  .mosaico__grid figure:hover img, .proj a:hover img { transform: none; }
}