/* =============================================================================
   TREED · ART WOOD — Design System
   Luxo silencioso · Minimalismo extremo · Precisão milimétrica
   Referência: Apple · Linear · Boffi
   ========================================================================== */

/* ---------------------------------------------------------------- Tokens --- */
:root {
    /* Neutros quentes (Ink) — a espinha do sistema */
    --ink-900: #141310;
    --ink-800: #1c1a16;
    --ink-700: #2c2924;
    --ink-500: #6b655b;
    --ink-400: #8a8479;
    --ink-300: #bdb6a7;
    --ink-100: #ede9e0;
    --paper:   #f6f4ef;
    --paper-alt: #efece4;
    --surface: #ffffff;

    /* Acento — Bronze (Wood). Usado em ≤10% da interface */
    --bronze:      #9a7b4f;
    --bronze-400:  #b2966b;
    --bronze-100:  #ece2d1;

    /* Semânticas empoeiradas */
    --sage:  #5f7357;
    --ochre: #b08a3e;
    --clay:  #9e5a4c;
    --slate: #5a6b78;

    /* Tipografia */
    --font-ui:      'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-display: 'Fraunces', 'Georgia', 'Times New Roman', serif;
    --font-mono:    'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;

    /* Escala de espaçamento — base 8 */
    --s-1: 4px;   --s-2: 8px;   --s-3: 12px;  --s-4: 16px;
    --s-5: 24px;  --s-6: 32px;  --s-7: 48px;  --s-8: 64px;
    --s-9: 96px;  --s-10: 128px;

    /* Raio & elevação */
    --r-control: 8px;
    --r-card: 12px;
    --shadow: 0 1px 2px rgba(20, 19, 16, .04), 0 24px 48px -32px rgba(20, 19, 16, .28);

    /* Hairlines */
    --line: rgba(20, 19, 16, .12);
    --line-strong: rgba(20, 19, 16, .22);
    --line-dark: rgba(246, 244, 239, .14);
    --line-dark-strong: rgba(246, 244, 239, .28);

    --wrap: 1240px;
    --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ----------------------------------------------------------------- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-ui);
    font-size: 15px;
    line-height: 1.6;
    font-weight: 400;
    color: var(--ink-700);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
::selection { background: var(--bronze); color: var(--paper); }

.skip-link {
    position: absolute; left: -999px; top: 0; z-index: 200;
    background: var(--ink-900); color: var(--paper);
    padding: var(--s-3) var(--s-5); border-radius: 0 0 var(--r-control) 0;
}
.skip-link:focus { left: 0; }

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

/* ------------------------------------------------------------ Tipografia --- */
.display {
    font-family: var(--font-display);
    font-weight: 300;
    font-optical-sizing: auto;
    letter-spacing: -.02em;
    line-height: 1.04;
}
.display em { font-style: italic; color: var(--bronze); font-weight: 400; }

.editorial {
    font-family: var(--font-display);
    font-weight: 300;
    line-height: 1.3;
    letter-spacing: -.01em;
}
.editorial em { font-style: italic; color: var(--bronze); }

.accent-serif {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    color: var(--bronze);
    letter-spacing: -.01em;
}

.mono-label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--ink-500);
    display: inline-block;
}

/* ------------------------------------------------------------- Utilitário --- */
.wrap {
    width: 100%;
    max-width: var(--wrap);
    margin-inline: auto;
    padding-inline: var(--s-6);
}
.section { padding-block: clamp(var(--s-8), 11vw, var(--s-10)); }
.section--paper { background: var(--paper); color: var(--ink-700); }
.section--paper-alt { background: var(--paper-alt); color: var(--ink-700); }
.section--ink { background: var(--ink-900); color: var(--ink-100); }
.section--ink .mono-label { color: var(--ink-300); }
.section--ink .section-title { color: var(--paper); }

/* ---------------------------------------------------------------- Botões --- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
    padding: 13px 22px;
    border-radius: var(--r-control);
    border: 1px solid transparent;
    font-weight: 600; font-size: 14px; letter-spacing: -.01em;
    transition: transform .4s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
    will-change: transform;
}
.btn--lg { padding: 16px 28px; font-size: 15px; }
.btn:active { transform: translateY(1px); }

.btn--key { background: var(--bronze); color: var(--paper); }
.btn--key:hover { background: var(--bronze-400); }

.btn--dark { background: var(--ink-900); color: var(--paper); }
.btn--dark:hover { background: var(--ink-700); }

.btn--secondary { background: var(--surface); color: var(--ink-900); border-color: var(--line-strong); }
.btn--secondary:hover { border-color: var(--ink-900); }

.btn--ghost-light { background: transparent; color: var(--paper); border-color: var(--line-dark-strong); }
.btn--ghost-light:hover { border-color: var(--paper); background: rgba(246, 244, 239, .06); }

.link-arrow, .link-back {
    display: inline-flex; align-items: center; gap: var(--s-2);
    font-weight: 600; font-size: 14px; color: var(--ink-900);
    border-bottom: 1px solid transparent; padding-bottom: 2px;
    transition: gap .3s var(--ease), border-color .3s var(--ease);
}
.link-arrow span { transition: transform .3s var(--ease); }
.link-arrow:hover { gap: var(--s-3); border-color: var(--bronze); }
.link-arrow:hover span { transform: translateX(4px); }
.link-back { color: var(--ink-500); margin-bottom: var(--s-6); font-size: 13px; }
.link-back:hover { color: var(--bronze); }

/* --------------------------------------------------------------- Header --- */
.site-header {
    position: fixed; inset: 0 0 auto 0; z-index: 100;
    transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s var(--ease);
    border-bottom: 1px solid transparent;
}
.site-header__inner {
    max-width: var(--wrap); margin-inline: auto;
    padding: var(--s-4) var(--s-6);
    display: flex; align-items: center; gap: var(--s-6);
}
.site-header.is-scrolled {
    background: rgba(246, 244, 239, .82);
    backdrop-filter: saturate(140%) blur(14px);
    border-bottom-color: var(--line);
}
.site-header.is-over-dark { color: var(--paper); }
.site-header.is-over-dark.is-scrolled { color: var(--ink-900); }
.site-header.is-solid { color: var(--ink-900); position: sticky; }
body.page-portfolio, body.page-project, body.page-contacto { padding-top: 0; }

.brand { display: inline-flex; align-items: center; gap: var(--s-3); margin-right: auto; }
.brand__mark { width: 34px; height: 34px; color: currentColor; }
.brand__word { display: flex; flex-direction: column; line-height: 1; }
.brand__name {
    font-family: var(--font-ui); font-weight: 600; font-size: 22px;
    letter-spacing: -.02em; color: currentColor;
}
.brand__sub {
    font-family: var(--font-ui); font-weight: 700; font-size: 9.5px;
    letter-spacing: .04em; text-transform: uppercase;
    color: currentColor; opacity: .75; margin-top: 3px;
}
.brand__sub-sl { font-weight: 500; opacity: .7; }

.site-nav__list { display: flex; align-items: center; gap: var(--s-6); }
.site-nav__list a {
    font-size: 14px; font-weight: 500; color: currentColor; opacity: .82;
    position: relative; padding-block: 4px;
    transition: opacity .3s var(--ease);
}
.site-nav__list a::after {
    content: ""; position: absolute; left: 0; bottom: -2px; width: 100%;
    height: 1px; background: var(--bronze); transform: scaleX(0); transform-origin: left;
    transition: transform .35s var(--ease);
}
.site-nav__list a:hover { opacity: 1; }
.site-nav__list a:hover::after { transform: scaleX(1); }

.site-header__cta { padding: 10px 18px; font-size: 13px; }

/* Seletor de idioma */
.lang-switch { display: inline-flex; align-items: center; gap: 1px; }
.lang-switch__opt {
    font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; font-weight: 500;
    color: currentColor; opacity: .55; padding: 5px 7px; border-radius: 6px;
    transition: opacity .25s var(--ease), background .25s var(--ease);
}
.lang-switch__opt:hover { opacity: 1; }
.lang-switch__opt.is-active { opacity: 1; color: var(--bronze-400); }
.site-header.is-scrolled .lang-switch__opt.is-active,
.site-header.is-solid .lang-switch__opt.is-active { color: var(--bronze); }

.mobile-menu__langs { display: flex; gap: var(--s-2); margin-top: var(--s-6); }
.mobile-menu__langs .lang-switch__opt {
    border: 1px solid var(--line-dark-strong); color: var(--paper); opacity: .8;
    padding: 8px 14px; font-size: 12px;
}
.mobile-menu__langs .lang-switch__opt.is-active { color: var(--bronze-400); border-color: var(--bronze); opacity: 1; }

.nav-toggle { display: none; }

/* Mobile menu */
.mobile-menu {
    background: var(--ink-900); color: var(--paper);
    padding: var(--s-6);
}
.mobile-menu ul { display: flex; flex-direction: column; gap: var(--s-2); }
.mobile-menu a {
    display: block; padding: var(--s-3) 0; font-family: var(--font-display);
    font-size: 26px; font-weight: 300; letter-spacing: -.01em;
    border-bottom: 1px solid var(--line-dark);
}
.mobile-menu__cta { margin-top: var(--s-5); width: 100%; }

/* ---------------------------------------------------------------- Hero --- */
.hero {
    position: relative; min-height: 100svh;
    background: var(--ink-900); color: var(--ink-100);
    display: flex; flex-direction: column; justify-content: center;
    padding: 148px var(--s-6) var(--s-8);
    overflow: hidden;
}
.hero__bg {
    position: absolute; inset: 0; color: var(--bronze);
    opacity: .16; pointer-events: none;
}
.hero__mesh { position: absolute; right: -6%; top: 50%; transform: translateY(-50%); width: 78%; height: auto; }
.hero::after {
    /* Vinheta subtil + textura de papel/grão */
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background:
        radial-gradient(120% 80% at 20% 15%, rgba(154, 123, 79, .10), transparent 60%),
        linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, .35));
}
.hero__photo {
    position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
    opacity: .34; z-index: 0; filter: saturate(.9) contrast(1.02);
}
.hero__inner { position: relative; z-index: 1; max-width: var(--wrap); margin-inline: auto; width: 100%; }

.eyebrow { display: flex; align-items: center; gap: var(--s-4); margin-bottom: var(--s-6); }
.eyebrow .mono-label { color: var(--ink-300); }
.eyebrow__sep { width: 48px; height: 1px; background: var(--line-dark-strong); }

.hero__title {
    font-size: clamp(2.6rem, 6.4vw, 5rem);
    color: var(--paper); max-width: 15ch;
    margin-bottom: var(--s-6);
}
.hero__lead {
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    color: var(--ink-300); max-width: 42ch; line-height: 1.5;
    margin-bottom: var(--s-7);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-bottom: var(--s-9); }

.hero__stats {
    display: flex; flex-wrap: wrap; gap: clamp(var(--s-6), 6vw, var(--s-9));
    border-top: 1px solid var(--line-dark); padding-top: var(--s-6); margin: 0;
    max-width: 720px;
}
.stat dt { margin-bottom: var(--s-2); }
.stat__value {
    font-size: clamp(2rem, 3.4vw, 2.9rem); color: var(--paper);
    margin: 0; line-height: 1;
}
.stat__sub { color: var(--ink-400); font-size: 13px; margin: var(--s-2) 0 0; }

.hero__scroll {
    position: absolute; left: 50%; bottom: var(--s-6); transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: var(--s-3);
    color: var(--ink-300);
}
.hero__scroll .mono-label { color: var(--ink-400); font-size: 10px; }
.hero__scroll-line {
    width: 1px; height: 42px;
    background: linear-gradient(var(--bronze-400), transparent);
    animation: scrollcue 2.4s var(--ease) infinite;
}
@keyframes scrollcue { 0%,100% { opacity: .3; transform: scaleY(.6); } 50% { opacity: 1; transform: scaleY(1); } }

/* ----------------------------------------------------------- Cabeçalhos --- */
.section-head { margin-bottom: var(--s-8); }
.section-head__idx { display: block; margin-bottom: var(--s-4); }
.section-head--split {
    display: grid; grid-template-columns: 1.2fr .9fr; gap: var(--s-7); align-items: end;
}
.section-title {
    font-family: var(--font-ui); font-weight: 600;
    font-size: clamp(1.6rem, 3.2vw, 2.5rem); letter-spacing: -.02em; line-height: 1.1;
    color: var(--ink-900);
}
.section-head__desc { color: var(--ink-500); max-width: 46ch; font-size: 16px; }

/* --------------------------------------------------------- Manifesto --- */
.manifesto__lead {
    font-size: clamp(1.5rem, 3.4vw, 2.4rem);
    color: var(--ink-900); max-width: 26ch; margin-bottom: var(--s-8);
}
.manifesto__cols {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-7);
    max-width: 860px; margin-left: auto;
}
.manifesto__cols p { color: var(--ink-500); font-size: 16px; }

/* ------------------------------------------------------- Disciplinas --- */
.disciplines {
    display: grid; grid-template-columns: repeat(2, 1fr);
    column-gap: var(--s-8); border-top: 1px solid var(--line);
}
.discipline {
    position: relative; padding: var(--s-6) 0 var(--s-6);
    border-bottom: 1px solid var(--line);
}
.discipline__num { color: var(--bronze); margin-bottom: var(--s-3); }
.discipline__title {
    font-size: 20px; font-weight: 600; letter-spacing: -.01em;
    color: var(--ink-900); margin-bottom: var(--s-2);
}
.discipline__desc { color: var(--ink-500); max-width: 42ch; }
.discipline__rule {
    position: absolute; left: 0; bottom: -1px; height: 1px; width: 0;
    background: var(--bronze); transition: width .5s var(--ease);
}
.discipline:hover .discipline__rule { width: 100%; }

/* ----------------------------------------------------- Capacidade / Art --- */
.capacity__grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5);
}
.material-card { display: flex; flex-direction: column; gap: var(--s-4); }
.material-card__title {
    font-family: var(--font-display); font-weight: 400; font-size: 22px;
    color: var(--paper); letter-spacing: -.01em; margin-bottom: var(--s-2);
}
.material-card__text p { color: var(--ink-400); font-size: 14px; }
.material-card:nth-child(4) { grid-column: 1; }

.art {
    position: relative; margin: 0; border-radius: var(--r-card); overflow: hidden;
    aspect-ratio: 4 / 3; background: var(--ink-700);
    border: 1px solid var(--line-dark);
    isolation: isolate;
}
.art.is-portrait { aspect-ratio: 3 / 4; }
.art__img { width: 100%; height: 100%; object-fit: cover; }
.art__mesh {
    position: absolute; inset: 0; width: 100%; height: 100%;
    color: rgba(246, 244, 239, .16); mix-blend-mode: overlay;
    transition: transform 1.2s var(--ease); transform: scale(1.02);
}
.art__grain {
    position: absolute; inset: 0; z-index: -1;
    background-image:
        radial-gradient(60% 50% at 30% 20%, rgba(255,255,255,.10), transparent 60%),
        radial-gradient(70% 60% at 80% 90%, rgba(0,0,0,.35), transparent 60%);
}
.art__label {
    position: absolute; left: var(--s-4); bottom: var(--s-4);
    color: rgba(246, 244, 239, .72); font-size: 10px;
}
/* Tonalidades de superfície (madeira / grafite) */
.art--oak      { background: linear-gradient(150deg, #b9975f 0%, #8a6a3d 55%, #5f4a2c 100%); }
.art--walnut   { background: linear-gradient(150deg, #7c5a3c 0%, #4f3a26 60%, #2e2318 100%); }
.art--bronze   { background: linear-gradient(150deg, #b2966b 0%, #9a7b4f 55%, #6a5535 100%); }
.art--graphite { background: linear-gradient(150deg, #34322c 0%, #201e1a 60%, #141310 100%); }
.art--smoke    { background: linear-gradient(150deg, #6b655b 0%, #45413a 60%, #2a2723 100%); }

/* ---------------------------------------------------------- Processo --- */
.timeline {
    display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--s-5);
    border-top: 1px solid var(--line); padding-top: var(--s-6);
    counter-reset: step;
}
.timeline__step { position: relative; padding-top: var(--s-5); }
.timeline__node {
    position: absolute; top: -6px; left: 0; width: 11px; height: 11px;
    border-radius: 50%; background: var(--ink-900);
    box-shadow: 0 0 0 4px var(--paper);
}
.timeline__step:first-child .timeline__node { background: var(--bronze); }
.timeline__num { color: var(--bronze); display: block; margin-bottom: var(--s-3); }
.timeline__title { font-size: 16px; font-weight: 600; color: var(--ink-900); margin-bottom: var(--s-2); }
.timeline__desc { color: var(--ink-500); font-size: 13px; }

.sectors { margin-top: var(--s-8); border-top: 1px solid var(--line); padding-top: var(--s-6); }
.sectors > .mono-label { display: block; margin-bottom: var(--s-4); }
.chips { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.chip {
    padding: 9px 16px; border: 1px solid var(--line-strong); border-radius: 999px;
    font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em;
    text-transform: uppercase; color: var(--ink-700);
    transition: border-color .3s var(--ease), color .3s var(--ease);
}
.chip:hover { border-color: var(--bronze); color: var(--bronze); }

/* ---------------------------------------------------------- Portfólio --- */
.work__grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5);
}
.work-card { display: flex; flex-direction: column; gap: var(--s-4); }
.work-card .art { transition: transform .6s var(--ease); }
.work-card:hover .art { transform: translateY(-6px); }
.work-card:hover .art__mesh { transform: scale(1.1); }
.work-card__meta { display: flex; flex-direction: column; gap: var(--s-1); }
.work-card__title {
    font-size: 19px; font-weight: 600; color: var(--ink-900); letter-spacing: -.01em;
    transition: color .3s var(--ease);
}
.work-card:hover .work-card__title { color: var(--bronze); }
.work-card__loc { color: var(--ink-500); font-size: 13px; }

.gallery__grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-5); margin-top: var(--s-6);
}
.gallery__grid .art { aspect-ratio: 4 / 3; }

.filterbar { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-bottom: var(--s-8); }
.filterbar__btn {
    padding: 9px 18px; border-radius: 999px; background: transparent;
    border: 1px solid var(--line-strong); color: var(--ink-500);
    font-size: 13px; font-weight: 500;
    transition: all .3s var(--ease);
}
.filterbar__btn:hover { border-color: var(--ink-900); color: var(--ink-900); }
.filterbar__btn.is-active { background: var(--ink-900); border-color: var(--ink-900); color: var(--paper); }

/* -------------------------------------------------------------- CTA --- */
.cta__inner {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    gap: var(--s-5);
}
.cta__mark { width: 44px; height: 44px; color: var(--bronze); margin-bottom: var(--s-2); }
.cta__headline {
    font-size: clamp(1.8rem, 4.4vw, 3.4rem); color: var(--paper);
    max-width: 20ch; line-height: 1.08;
}
.cta .btn { margin-top: var(--s-3); }

/* ---------------------------------------------------- Páginas internas --- */
.page-hero {
    background: var(--ink-900); color: var(--ink-100);
    padding: clamp(140px, 18vh, 220px) var(--s-6) clamp(var(--s-8), 10vw, var(--s-10));
}
.page-hero--tight { padding-bottom: var(--s-8); }
.page-hero .wrap { padding-inline: 0; }
.page-hero .mono-label { color: var(--ink-300); }
.page-hero__title {
    font-size: clamp(2.4rem, 6vw, 4.4rem); color: var(--paper);
    margin: var(--s-4) 0 var(--s-5); max-width: 16ch;
}
.page-hero__lead { color: var(--ink-300); max-width: 52ch; font-size: clamp(1rem, 1.5vw, 1.15rem); }

/* Projeto */
.project__hero { background: var(--ink-900); color: var(--ink-100); padding: clamp(140px, 18vh, 200px) var(--s-6) var(--s-8); }
.project__hero .mono-label { color: var(--bronze-400); }
.project__title { font-size: clamp(2.4rem, 5.5vw, 4rem); color: var(--paper); margin: var(--s-4) 0 var(--s-5); }
.project__summary { color: var(--ink-300); max-width: 54ch; font-size: 1.1rem; }
.project__cover { background: var(--ink-900); padding: 0 var(--s-6) 0; }
.project__cover .art { aspect-ratio: 16 / 8; margin-top: 0; }
.project__body {
    display: grid; grid-template-columns: .8fr 1.4fr; gap: clamp(var(--s-6), 6vw, var(--s-9));
    align-items: start;
}
.project__specs { display: grid; gap: var(--s-5); position: sticky; top: 120px; }
.spec > .mono-label { display: block; margin-bottom: var(--s-2); }
.spec p { color: var(--ink-900); font-weight: 500; }
.spec__list { display: grid; gap: var(--s-1); }
.spec__list li { color: var(--ink-700); }
.spec__list li::before { content: "— "; color: var(--bronze); }
.project__text { display: grid; gap: var(--s-5); }
.project__para { font-size: clamp(1.05rem, 1.6vw, 1.35rem); color: var(--ink-700); line-height: 1.55; }
.project__para:first-child { font-family: var(--font-display); font-weight: 300; color: var(--ink-900); }

/* -------------------------------------------------------- Formulário --- */
.contact__grid {
    display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(var(--s-7), 6vw, var(--s-9));
    align-items: start;
}
.contact__desc { color: var(--ink-500); margin: var(--s-5) 0 var(--s-7); font-size: 1.05rem; max-width: 40ch; }
.contact__info { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-6); }
.contact__info--stack { grid-template-columns: 1fr; gap: var(--s-5); }
.contact__info .mono-label { display: block; margin-bottom: var(--s-2); }
.contact__info p { color: var(--ink-700); font-size: 14px; }
.contact__info a:hover { color: var(--bronze); }
.contact__form-wrap {
    background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--r-card); padding: clamp(var(--s-6), 3vw, var(--s-8));
    box-shadow: var(--shadow);
}

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-5); }
.field { display: flex; flex-direction: column; gap: var(--s-2); }
.field--full { grid-column: 1 / -1; }
.field label { color: var(--ink-500); }
.field input, .field textarea, .select-wrap select {
    width: 100%; font: inherit; font-size: 15px; color: var(--ink-900);
    background: var(--paper); border: 1px solid var(--line-strong);
    border-radius: var(--r-control); padding: 13px 14px;
    transition: border-color .25s var(--ease), background .25s var(--ease);
}
.field textarea { resize: vertical; min-height: 128px; }
.field input:focus, .field textarea:focus, .select-wrap select:focus {
    border-color: var(--bronze); background: var(--surface); outline: none;
}
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--clay); }
.field__error { color: var(--clay); font-size: 12.5px; font-weight: 500; }

.select-wrap { position: relative; }
.select-wrap::after {
    content: ""; position: absolute; right: 16px; top: 50%; width: 8px; height: 8px;
    border-right: 1.5px solid var(--ink-500); border-bottom: 1.5px solid var(--ink-500);
    transform: translateY(-70%) rotate(45deg); pointer-events: none;
}
.select-wrap select { appearance: none; padding-right: 40px; }

.contact-form__foot {
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--s-4); flex-wrap: wrap; margin-top: var(--s-6);
    border-top: 1px solid var(--line); padding-top: var(--s-5);
}
.contact-form__note { color: var(--ink-500); font-size: 13px; }

.form-note {
    border-radius: var(--r-control); padding: var(--s-4) var(--s-5); margin-bottom: var(--s-5);
    border: 1px solid transparent;
}
.form-note .mono-label { display: block; margin-bottom: 4px; }
.form-note p { font-size: 14px; }
.form-note--ok { background: rgba(95, 115, 87, .10); border-color: rgba(95, 115, 87, .32); }
.form-note--ok .mono-label { color: var(--sage); }
.form-note--error { background: rgba(158, 90, 76, .08); border-color: rgba(158, 90, 76, .30); }
.form-note--error .mono-label { color: var(--clay); }

/* ------------------------------------------------------------- Footer --- */
.site-footer { background: var(--ink-900); color: var(--ink-300); padding: var(--s-9) var(--s-6) var(--s-6); }
.site-footer__top {
    max-width: var(--wrap); margin-inline: auto;
    display: grid; grid-template-columns: 1fr 2fr; gap: var(--s-8);
    padding-bottom: var(--s-8); border-bottom: 1px solid var(--line-dark);
}
.site-footer__mark { width: 40px; height: 40px; color: var(--bronze); margin-bottom: var(--s-5); }
.site-footer__tagline { font-family: var(--font-display); font-weight: 300; font-size: 1.25rem; color: var(--paper); max-width: 24ch; line-height: 1.3; }
.site-footer__cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-6); }
.footer-col .mono-label { display: block; margin-bottom: var(--s-3); color: var(--ink-500); }
.footer-col p { font-size: 13.5px; color: var(--ink-300); line-height: 1.7; }
.footer-col strong { color: var(--paper); font-weight: 600; }
.footer-col a:hover { color: var(--bronze-400); }
.site-footer__bottom {
    max-width: var(--wrap); margin: var(--s-6) auto 0;
    display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap;
}
.site-footer__bottom .mono-label { color: var(--ink-500); font-size: 10px; }
.site-footer__powered { display: inline-flex; align-items: center; gap: var(--s-3); opacity: .85; transition: opacity .3s var(--ease); }
.site-footer__powered:hover { opacity: 1; }
.site-footer__powered-logo { height: 22px; width: auto; }
@media (max-width: 760px) {
    .site-footer__bottom { flex-direction: column; align-items: flex-start; gap: var(--s-4); }
}

/* ---------------------------------------------------- Reveal ao scroll --- */
[data-reveal] {
    opacity: 0; transform: translateY(18px);
    transition: opacity .8s var(--ease), transform .8s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* -------------------------------------------------------- Responsivo --- */
@media (max-width: 1080px) {
    .section-head--split { grid-template-columns: 1fr; gap: var(--s-5); align-items: start; }
    .capacity__grid { grid-template-columns: repeat(2, 1fr); }
    .timeline { grid-template-columns: repeat(3, 1fr); row-gap: var(--s-7); }
    .work__grid { grid-template-columns: repeat(2, 1fr); }
    .project__body { grid-template-columns: 1fr; }
    .project__specs { position: static; grid-template-columns: repeat(2, 1fr); }
    .site-footer__top { grid-template-columns: 1fr; gap: var(--s-7); }
    .site-footer__cols { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
    .site-nav, .site-header__cta, .lang-switch { display: none; }
    .nav-toggle {
        display: inline-flex; flex-direction: column; gap: 5px; justify-content: center;
        width: 42px; height: 42px; background: transparent; border: 0; align-items: center;
    }
    .nav-toggle span { width: 22px; height: 1.5px; background: currentColor; transition: transform .3s var(--ease), opacity .3s var(--ease); }
    .site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
    .site-header.nav-open .nav-toggle span:nth-child(2) { transform: translateY(-6.5px) rotate(-45deg); }
    .site-header.nav-open { background: var(--ink-900); color: var(--paper); }

    .disciplines { grid-template-columns: 1fr; }
    .manifesto__cols { grid-template-columns: 1fr; gap: var(--s-5); }
    .capacity__grid { grid-template-columns: 1fr; }
    .material-card:nth-child(4) { grid-column: auto; }
    .timeline { grid-template-columns: repeat(2, 1fr); }
    .work__grid, .work__grid--index { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .contact__grid { grid-template-columns: 1fr; gap: var(--s-7); }
    .contact__info { grid-template-columns: 1fr; }
    .project__specs { grid-template-columns: 1fr; }
    .hero { padding-top: 132px; }
    .hero__actions .btn { flex: 1 1 100%; }
    .wrap { padding-inline: var(--s-5); }
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    [data-reveal] { opacity: 1; transform: none; }
}