/* =========================================================
   AROE ARQUITETURA - folha de estilo unica
   Sistema: CSS nativo (custom properties + grid). Sem framework.
   Paleta travada: papel frio + tinta quase-preta + 1 acento tijolo.
   Raio de canto travado em 0 (linguagem de prancha tecnica).
   ========================================================= */

:root {
  --paper:      #edede9;
  --paper-2:    #e5e5df;
  --paper-3:    #dcdcd4;
  --ink:        #15171a;
  --ink-2:      #33373c;
  --muted:      #6c7176;
  --accent:     #b2442b;
  --accent-hi:  #e0714e;  /* mesmo acento, versao clara para fundo escuro */
  --accent-ink: #ffffff;
  --line:       rgba(21, 23, 26, 0.16);
  --line-soft:  rgba(21, 23, 26, 0.08);

  /* superficie escura fixa: NAO inverte no dark mode, senao o texto some */
  --surface-dark: #15171a;
  --on-dark:      #f4f2ee;
  --on-dark-soft: rgba(244, 242, 238, 0.76);
  --on-dark-mid:  rgba(244, 242, 238, 0.6);
  --on-dark-line: rgba(244, 242, 238, 0.24);

  --font-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --shell: 1440px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --nav-h: 76px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  --z-chat: 30;
  --z-nav: 40;
  --z-menu: 50;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #131518;
    --paper-2:    #191c1f;
    --paper-3:    #212529;
    --ink:        #eceae4;
    --ink-2:      #c3c1bb;
    --muted:      #8d9298;
    --accent:     #d9603f;
    --accent-hi:  #e0714e;
    --accent-ink: #14161a;
    --line:       rgba(236, 234, 228, 0.18);
    --line-soft:  rgba(236, 234, 228, 0.09);
    /* um degrau mais escuro que o fundo da pagina, para o bloco nao sumir */
    --surface-dark: #0d0f12;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

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

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

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- utilitarios ---------- */

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

.mono {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.section { padding-block: clamp(4.5rem, 11vw, 9rem); scroll-margin-top: calc(var(--nav-h) + 8px); }

.h-display {
  font-size: clamp(2.5rem, 6.4vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: 0;
  text-wrap: balance;
}

.h-section {
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0;
  text-wrap: balance;
}

.lead {
  font-size: clamp(1.0625rem, 1.5vw, 1.3125rem);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 60ch;
}

.body { color: var(--ink-2); max-width: 62ch; }

/* ---------- botoes ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
  padding: 0.9rem 1.5rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease),
              border-color 0.35s var(--ease), transform 0.15s var(--ease);
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:active { transform: translateY(1px); }

/* claro sobre foto ou sobre bloco escuro */
.btn--light {
  background: var(--on-dark);
  border-color: var(--on-dark);
  color: #15171a;
}
.btn--light:hover { background: var(--accent-hi); border-color: var(--accent-hi); color: #15171a; }

.btn--outline {
  background: rgba(21, 23, 26, 0.28);
  border-color: rgba(244, 242, 238, 0.55);
  color: var(--on-dark);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.btn--outline:hover { background: var(--on-dark); border-color: var(--on-dark); color: #15171a; }

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

.btn__arrow { transition: transform 0.35s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.link-underline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.link-underline:hover { color: var(--accent); border-color: var(--accent); }
.link-underline--dark { border-color: var(--on-dark-line); color: var(--on-dark); }
.link-underline--dark:hover { color: var(--accent-hi); border-color: var(--accent-hi); }

/* ---------- navegacao ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  color: var(--on-dark);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), color 0.4s var(--ease),
              border-color 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}

.nav[data-solid="true"] {
  color: var(--ink);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line-soft);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: 100%;
}

.wordmark {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.wordmark span {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  font-weight: 400;
  opacity: 0.66;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2.25rem);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav__links a { position: relative; padding-block: 0.35rem; }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }

/* CTA da nav: contorno claro sobre a foto, tinta cheia depois do hero */
.nav__cta {
  padding: 0.6rem 1.15rem;
  font-size: 0.8125rem;
  background: transparent;
  border-color: rgba(244, 242, 238, 0.55);
  color: var(--on-dark);
}
.nav__cta:hover { background: var(--on-dark); border-color: var(--on-dark); color: #15171a; }
.nav[data-solid="true"] .nav__cta { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.nav[data-solid="true"] .nav__cta:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.nav__toggle {
  display: none;
  border: 1px solid currentColor;
  background: transparent;
  padding: 0.55rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav__drawer {
  position: fixed;
  inset: var(--nav-h) 0 auto 0;
  z-index: var(--z-menu);
  background: var(--paper);
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.25rem;
  padding: 1.5rem var(--gutter) 2rem;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.nav__drawer[data-open="true"] { opacity: 1; transform: none; pointer-events: auto; }
.nav__drawer a {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  padding-block: 0.5rem;
  border-bottom: 1px solid var(--line-soft);
}

.nav-sentinel { display: block; height: 1px; margin-top: -1px; }

/* ---------- hero em tela cheia ---------- */

.hero {
  position: relative;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: #15171a;
  color: var(--on-dark);
  scroll-margin-top: 0;
}

.hero__bg { position: absolute; inset: 0; overflow: hidden; }
.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 55%;
  transform-origin: 55% 60%;
  animation: kenBurns 38s ease-in-out infinite;
  will-change: transform;
}

@keyframes kenBurns {
  0%   { transform: scale(1.05) translate3d(0, 0, 0); }
  50%  { transform: scale(1.15) translate3d(-1.4%, -1.2%, 0); }
  100% { transform: scale(1.05) translate3d(0, 0, 0); }
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 13, 15, 0.72) 0%, rgba(11, 13, 15, 0.22) 26%,
                    rgba(11, 13, 15, 0.42) 62%, rgba(11, 13, 15, 0.86) 100%),
    radial-gradient(120% 85% at 25% 75%, rgba(11, 13, 15, 0.55), transparent 60%);
}

.hero__content {
  position: relative;
  display: grid;
  gap: clamp(1.25rem, 2.4vw, 2rem);
  padding-top: var(--nav-h);
  padding-bottom: clamp(3rem, 8vh, 6rem);
  max-width: min(var(--shell), 100%);
}

.hero__title {
  max-width: 15ch;
  color: var(--on-dark);
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.35);
}
.hero__title em {
  font-style: italic;
  font-weight: 600;
  color: var(--accent-hi);
  line-height: 1.1;
  padding-bottom: 0.06em;
  display: inline-block;
}

.hero__sub {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
  line-height: 1.5;
  color: var(--on-dark-soft);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.5rem; }

/* entrada do hero */
.hero__title, .hero__sub, .hero__actions {
  animation: rise 1s var(--ease) both;
}
.hero__sub { animation-delay: 0.12s; }
.hero__actions { animation-delay: 0.22s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- numeros ---------- */

.figures {
  background: var(--paper);
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--line-soft);
}
.figures__grid {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem clamp(1rem, 3vw, 3rem);
}
.figures__grid dt {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.figures__grid dd {
  margin: 0.45rem 0 0;
  font-size: clamp(1.5rem, 2.6vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

/* ---------- manifesto ---------- */

.manifesto__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.manifesto__aside { display: grid; gap: 1.5rem; position: sticky; top: calc(var(--nav-h) + 32px); }
.manifesto__aside img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}
.manifesto__text { display: grid; gap: 1.75rem; }
.manifesto__text p { margin: 0; }
.manifesto__quote {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  line-height: 1.28;
  letter-spacing: -0.02em;
  font-weight: 500;
  max-width: 24ch;
  color: var(--ink);
  border-left: 2px solid var(--accent);
  padding-left: clamp(1rem, 2vw, 1.75rem);
}

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

.projects__head { display: grid; gap: 1rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.projects__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 2rem) clamp(1rem, 2.5vw, 2.5rem);
}

.project { display: grid; gap: 1rem; }
.project--wide { grid-column: span 12; }
.project--half { grid-column: span 6; }
.project--offset { grid-column: 4 / span 5; }
.project--tall  { grid-column: 9 / span 4; }

.project__frame { position: relative; overflow: hidden; background: var(--paper-3); }
.project__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.6s var(--ease);
}
.project:hover .project__frame img { transform: scale(1.04); }

.project--wide .project__frame { aspect-ratio: 16 / 8; }
.project--offset .project__frame { aspect-ratio: 4 / 3; }
.project--tall .project__frame { aspect-ratio: 3 / 4; }
.project--half .project__frame { aspect-ratio: 5 / 4; }

.project__info {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}
.project__name { font-size: 1.125rem; font-weight: 600; letter-spacing: -0.02em; margin: 0; }
.project__where { margin: 0.25rem 0 0; font-size: 0.8125rem; color: var(--muted); }
.project__year { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }

/* ---------- atuacao (acordeao) ---------- */

.expertise { background: var(--paper-2); border-block: 1px solid var(--line-soft); }
.expertise__grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.acc { border-top: 1px solid var(--line); }
.acc__item { border-bottom: 1px solid var(--line); }
.acc__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.1rem, 2.2vw, 1.6rem) 0;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-size: clamp(1.15rem, 2.2vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  transition: color 0.3s var(--ease);
}
.acc__btn:hover { color: var(--accent); }
.acc__sign { flex: none; width: 22px; height: 22px; position: relative; }
.acc__sign::before, .acc__sign::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  background: currentColor;
  transition: transform 0.4s var(--ease), opacity 0.3s var(--ease);
}
.acc__sign::after { transform: rotate(90deg); }
.acc__item[data-open="true"] .acc__sign::after { transform: rotate(0deg); opacity: 0; }

.acc__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.45s var(--ease); }
.acc__item[data-open="true"] .acc__panel { grid-template-rows: 1fr; }
.acc__panel > div { overflow: hidden; }
.acc__panel p { margin: 0 0 1.25rem; max-width: 58ch; color: var(--ink-2); }
.acc__tags { display: flex; flex-wrap: wrap; gap: 0.5rem 0.75rem; padding: 0 0 1.5rem; margin: 0; }
.acc__tags li {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.35rem 0.6rem;
}

/* ---------- processo ---------- */

.process__head { display: grid; gap: 1rem; margin-bottom: clamp(2rem, 4vw, 3.25rem); }

.process__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 28vw);
  gap: clamp(1rem, 2vw, 1.75rem);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 1.5rem;
  scrollbar-width: thin;
}
.process__track::-webkit-scrollbar { height: 2px; }
.process__track::-webkit-scrollbar-thumb { background: var(--line); }

.step {
  scroll-snap-align: start;
  border-top: 2px solid var(--ink);
  padding-top: 1.25rem;
  display: grid;
  gap: 0.75rem;
  align-content: start;
}
.step:first-child { border-top-color: var(--accent); }
.step h3 { margin: 0; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.02em; }
.step p { margin: 0; font-size: 0.9375rem; color: var(--ink-2); }
.step__dur {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- depoimentos ---------- */

.voices { background: var(--surface-dark); color: var(--on-dark); }
.voices .h-section { color: var(--on-dark); }
.voices__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.voice { display: grid; gap: 1.5rem; }
.voice blockquote {
  margin: 0;
  font-size: clamp(1.2rem, 2.1vw, 1.65rem);
  line-height: 1.32;
  letter-spacing: -0.02em;
  font-weight: 500;
  max-width: 30ch;
}
.voice figcaption {
  display: grid;
  gap: 0.15rem;
  border-top: 1px solid var(--on-dark-line);
  padding-top: 0.9rem;
}
.voice__name { font-weight: 600; font-size: 0.9375rem; }
.voice__role { font-size: 0.8125rem; color: var(--on-dark-mid); }

/* ---------- escritorio + mapa ---------- */

.office__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: stretch;
}
.office__info { display: grid; gap: 2rem; align-content: start; }
.office__rows { display: grid; gap: 1.5rem; margin: 0; }
.office__row { display: grid; gap: 0.3rem; }
.office__row dt {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.office__row dd { margin: 0; font-size: 1.0625rem; font-weight: 500; line-height: 1.45; }

.map {
  position: relative;
  min-height: 420px;
  border: 1px solid var(--line);
  background: var(--paper-3);
  overflow: hidden;
}
.map iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; filter: grayscale(1) contrast(1.05); }
.map__fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.875rem;
}

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

.contact {
  background: var(--surface-dark);
  color: var(--on-dark);
  padding-block: clamp(4rem, 9vw, 7.5rem);
  scroll-margin-top: calc(var(--nav-h) + 8px);
}
.contact .h-section { color: var(--on-dark); }

.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}

.contact__intro { display: grid; gap: 1.5rem; align-content: start; }
.contact__lead { margin: 0; color: var(--on-dark-soft); max-width: 44ch; font-size: 1.0625rem; }

.contact__facts {
  margin: 1rem 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem 2rem;
  border-top: 1px solid var(--on-dark-line);
  padding-top: 2rem;
}
.contact__facts dt {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--on-dark-mid);
}
.contact__facts dd { margin: 0.45rem 0 0; font-size: 0.9875rem; line-height: 1.5; }
.contact__facts a { border-bottom: 1px solid var(--on-dark-line); padding-bottom: 1px; transition: color 0.3s var(--ease), border-color 0.3s var(--ease); }
.contact__facts a:hover { color: var(--accent-hi); border-color: var(--accent-hi); }

.form { display: grid; gap: 1.25rem; align-content: start; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.field { display: grid; gap: 0.5rem; align-content: start; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}
.field input, .field textarea, .field select {
  width: 100%;
  background: transparent;
  border: 1px solid rgba(244, 242, 238, 0.38);
  color: var(--on-dark);
  padding: 0.85rem 0.9rem;
  font: inherit;
  font-size: 0.9375rem;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.field textarea { min-height: 132px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: rgba(244, 242, 238, 0.58); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent-hi);
  background: rgba(244, 242, 238, 0.06);
}
.field select option { color: #15171a; }
.field__help { margin: 0; font-size: 0.75rem; color: var(--on-dark-mid); }
.field__error { margin: 0; font-size: 0.75rem; color: #f2a58e; min-height: 1rem; }
.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea { border-color: #f2a58e; }

.form .btn { justify-self: start; }
.form .btn[data-state="loading"] { opacity: 0.7; pointer-events: none; }

.form__status {
  margin: 0;
  border: 1px solid var(--on-dark-line);
  padding: 1rem;
  font-size: 0.9375rem;
  display: none;
}
.form__status[data-visible="true"] { display: block; }

/* ---------- rodape ---------- */

.footer {
  background: var(--surface-dark);
  color: var(--on-dark-soft);
  padding-bottom: 2.5rem;
  border-top: 1px solid var(--on-dark-line);
  padding-top: clamp(3rem, 6vw, 4.5rem);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.footer__brand { display: grid; gap: 1rem; justify-items: start; }
.footer__name {
  margin: 0;
  color: var(--on-dark);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.footer__name span {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  font-weight: 400;
  opacity: 0.6;
  margin-left: 0.4rem;
}
.footer__addr { margin: 0; font-size: 0.875rem; line-height: 1.6; }

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  font-size: 0.875rem;
}
.footer__nav .mono { margin-bottom: 0.9rem; color: var(--on-dark-mid); }
.footer__nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.footer__nav a { transition: color 0.3s var(--ease); }
.footer__nav a:hover { color: var(--on-dark); }

.footer__mark {
  margin: clamp(2.5rem, 6vw, 4rem) 0 0;
  font-size: clamp(4rem, 19vw, 17rem);
  line-height: 0.78;
  font-weight: 700;
  letter-spacing: -0.055em;
  color: rgba(244, 242, 238, 0.09);
  user-select: none;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--on-dark-line);
  font-size: 0.75rem;
  color: var(--on-dark-mid);
}

/* ---------- chat online ---------- */

.chat {
  position: fixed;
  right: clamp(1rem, 2.5vw, 2rem);
  bottom: clamp(1rem, 2.5vw, 2rem);
  z-index: var(--z-chat);
  display: grid;
  justify-items: end;
  gap: 0.85rem;
}

.chat__fab {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 1.25rem;
  background: var(--surface-dark);
  color: var(--on-dark);
  border: 1px solid var(--on-dark-line);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 14px 34px rgba(15, 17, 20, 0.28);
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.2s var(--ease);
}
.chat__fab:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.chat__fab:active { transform: translateY(1px); }

/* balao desenhado em CSS, sem SVG */
.chat__bubble {
  position: relative;
  width: 14px;
  height: 11px;
  border: 1.5px solid currentColor;
  flex: none;
}
.chat__bubble::after {
  content: "";
  position: absolute;
  left: 2px;
  bottom: -5px;
  width: 5px;
  height: 5px;
  border-left: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  background: inherit;
}

.chat__panel {
  width: min(340px, calc(100vw - 2rem));
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(15, 17, 20, 0.3);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  max-height: min(70vh, 520px);
  animation: rise 0.35s var(--ease) both;
}
.chat__panel[hidden] { display: none; }

.chat__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  background: var(--surface-dark);
  color: var(--on-dark);
}
.chat__title { margin: 0; font-weight: 600; font-size: 0.9375rem; }
.chat__status { margin: 0.2rem 0 0; font-size: 0.75rem; color: var(--on-dark-mid); }
.chat__close {
  background: transparent;
  border: 1px solid var(--on-dark-line);
  color: var(--on-dark);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.chat__close:hover { background: var(--on-dark); color: var(--surface-dark); }

.chat__log {
  padding: 1.1rem;
  display: grid;
  gap: 0.75rem;
  overflow-y: auto;
  align-content: start;
  background: var(--paper);
}
.msg { max-width: 88%; }
.msg p {
  margin: 0;
  padding: 0.7rem 0.85rem;
  font-size: 0.875rem;
  line-height: 1.5;
}
.msg--bot { justify-self: start; }
.msg--bot p { background: var(--paper-2); border-left: 2px solid var(--accent); }
.msg--user { justify-self: end; }
.msg--user p { background: var(--surface-dark); color: var(--on-dark); }
.msg--typing p { color: var(--muted); font-style: italic; }

.chat__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0 1.1rem 0.9rem;
}
.chat__quick button {
  background: transparent;
  border: 1px solid var(--line);
  padding: 0.4rem 0.65rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.chat__quick button:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chat__quick[hidden] { display: none; }

.chat__form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  border-top: 1px solid var(--line);
}
.chat__form input {
  border: 0;
  background: transparent;
  padding: 0.9rem 1.1rem;
  font: inherit;
  font-size: 0.875rem;
  color: var(--ink);
}
.chat__form input::placeholder { color: var(--muted); }
.chat__form input:focus { outline: none; background: var(--paper-2); }
.chat__form button {
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  padding-inline: 1.1rem;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.chat__form button:hover { background: var(--ink); color: var(--paper); }

/* ---------- revelacao em scroll ---------- */

.reveal { opacity: 0; transform: translateY(22px); }
.reveal[data-shown="true"] {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--delay, 0ms);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .hero__bg img { animation: none; transform: scale(1.02); }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- responsivo ---------- */

@media (max-width: 1024px) {
  .manifesto__grid,
  .expertise__grid,
  .office__grid,
  .contact__grid,
  .footer__grid { grid-template-columns: 1fr; }
  .manifesto__aside { position: static; }
  .project--offset { grid-column: span 7; }
  .project--tall { grid-column: span 5; }
  .figures__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: inline-flex; }
}

@media (max-width: 768px) {
  .hero { min-height: 92dvh; }
  .hero__content { padding-bottom: clamp(2.5rem, 7vh, 4rem); }
  .hero__title { max-width: 100%; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; }
  .project--wide,
  .project--half,
  .project--offset,
  .project--tall { grid-column: span 12; }
  .project--wide .project__frame,
  .project--offset .project__frame,
  .project--tall .project__frame,
  .project--half .project__frame { aspect-ratio: 4 / 3; }
  .voices__grid { grid-template-columns: 1fr; }
  .process__track { grid-auto-columns: 78vw; }
  .map { min-height: 340px; }
  .form__row { grid-template-columns: 1fr; }
  .contact__facts { grid-template-columns: 1fr; }
  .footer__nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chat__fab-label { display: none; }
  .chat__fab { padding: 1rem; }
}

@media (max-width: 480px) {
  .figures__grid { grid-template-columns: 1fr; }
  .figures__grid > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid var(--line-soft);
    padding-bottom: 0.6rem;
  }
  .figures__grid dd { margin-top: 0; font-size: 1.5rem; }
}