/* ==========================================================================
   ItechBrasil - site institucional
   Identidade baseada na Apresentação 2026: fundo escuro, roxo/lilás, branco.
   ========================================================================== */

@font-face {
    font-family: "Montserrat";
    src: url("../fonts/Montserrat.ttf") format("truetype");
    font-weight: 100 900;
    font-display: swap;
}
@font-face {
    font-family: "Cormorant Garamond";
    src: url("../fonts/CormorantGaramond.ttf") format("truetype");
    font-weight: 300 700;
    font-display: swap;
}

:root {
    --bg: #0b0b0e;
    --bg-2: #121217;
    --card: #17171d;
    --linha: rgba(255, 255, 255, .09);
    --texto: #f3f3f6;
    --suave: #b4b4c0;
    --roxo: #7b3fb0;
    --roxo-2: #9a5fd0;
    --lilas: #c4a0e8;
    --grad-titulo: linear-gradient(180deg, #7d41b3 0%, #c7a3ea 100%);
    --grad-btn: linear-gradient(135deg, #7b3fb0, #a66be0);
    --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
    --sans: "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    --raio: 18px;
    --largura: 1200px;
    --topo-h: 84px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topo-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--sans);
    font-weight: 300;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--texto);
    background-color: var(--bg);
    background-image:
        repeating-linear-gradient(115deg, rgba(255, 255, 255, .018) 0 2px, transparent 2px 46px),
        radial-gradient(1200px 700px at 80% -10%, rgba(123, 63, 176, .16), transparent 60%);
    background-attachment: fixed;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-color: var(--roxo-2); text-underline-offset: 3px; }
a:hover { color: var(--lilas); }
:focus-visible { outline: 2px solid var(--lilas); outline-offset: 3px; border-radius: 4px; }
ul { margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin-top: 0; }
strong, b { font-weight: 700; }

.container { width: min(100% - 2.5rem, var(--largura)); margin-inline: auto; }
.icone { width: 1.25em; height: 1.25em; flex: none; }
.pular { position: absolute; left: -999px; top: 8px; background: #fff; color: #000; padding: .6rem 1rem; z-index: 200; border-radius: 8px; }
.pular:focus { left: 8px; }

/* ---------- Tipografia ---------- */
.titulo {
    font-family: var(--serif);
    font-weight: 500;
    line-height: .95;
    letter-spacing: -.01em;
    margin-bottom: 1.4rem;
    background: var(--grad-titulo);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.titulo__p { font-size: .72em; font-weight: 400; }
.titulo__g { font-size: 1em; font-weight: 600; }
h1.titulo { font-size: clamp(3rem, 7vw, 5.4rem); }
h2.titulo { font-size: clamp(2.4rem, 5vw, 4rem); }
h3 { font-weight: 600; line-height: 1.25; }
.eyebrow {
    display: inline-block;
    font-size: .8rem;
    font-weight: 500;
    letter-spacing: .32em;
    text-transform: uppercase;
    color: var(--suave);
    margin-bottom: 1.2rem;
}
.lead { font-size: 1.25rem; line-height: 1.65; color: #e8e8ee; }
.suave { color: var(--suave); }
.destaque { color: var(--lilas); font-weight: 600; }

/* ---------- Botões ---------- */
.btn {
    display: inline-flex; align-items: center; gap: .6rem;
    padding: .95rem 1.7rem;
    border-radius: 999px;
    border: 1px solid transparent;
    background: var(--grad-btn);
    color: #fff;
    font: 600 .95rem/1 var(--sans);
    text-decoration: none;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s;
    box-shadow: 0 10px 30px -12px rgba(123, 63, 176, .8);
}
.btn:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 16px 36px -12px rgba(154, 95, 208, .9); }
.btn--contorno { background: transparent; border-color: rgba(255, 255, 255, .35); box-shadow: none; }
.btn--contorno:hover { background: rgba(255, 255, 255, .08); box-shadow: none; }
.btn--pequeno { padding: .75rem 1.3rem; font-size: .85rem; }
.btn .icone { width: 1.15em; height: 1.15em; }
.acoes { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.8rem; }

/* ---------- Topo / menu ---------- */
.topo {
    position: sticky; top: 0; z-index: 100;
    background: rgba(11, 11, 14, .82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--linha);
}
.topo__linha { display: flex; align-items: center; justify-content: space-between; height: var(--topo-h); gap: 1.5rem; }
.topo__logo img { height: 36px; width: auto; }
.menu { display: flex; align-items: center; gap: 1.6rem; }
.menu ul { list-style: none; display: flex; gap: 1.5rem; }
.menu a { text-decoration: none; font-size: .86rem; font-weight: 500; letter-spacing: .02em; padding: .4rem 0; position: relative; }
.menu ul a::after {
    content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 2px;
    background: var(--grad-btn); transition: right .25s ease;
}
.menu ul a:hover::after, .menu ul a.ativo::after { right: 0; }
.menu a.ativo { color: var(--lilas); }
.menu .btn { color: #fff; }
.topo__burger { display: none; width: 46px; height: 46px; border: 1px solid var(--linha); border-radius: 12px; background: transparent; cursor: pointer; padding: 0; }
.topo__burger span { display: block; width: 22px; height: 2px; background: #fff; margin: 5px auto; transition: transform .25s, opacity .25s; }
.topo__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.topo__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.topo__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1120px) {
    /* backdrop-filter cria um "containing block" e prenderia o menu fixed dentro do topo */
    .topo { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(11, 11, 14, .97); }
    .topo__burger { display: block; }
    .menu {
        position: fixed; inset: var(--topo-h) 0 0 0;
        flex-direction: column; align-items: stretch; justify-content: flex-start;
        gap: 1rem; padding: 1.5rem 1.5rem 3rem;
        background: rgba(11, 11, 14, .98);
        overflow-y: auto;
        transform: translateX(100%); visibility: hidden;
        transition: transform .3s ease, visibility .3s;
    }
    .menu.aberto { transform: none; visibility: visible; }
    .menu ul { flex-direction: column; gap: 0; }
    .menu ul li { border-bottom: 1px solid var(--linha); }
    .menu ul a { display: block; padding: 1.1rem 0; font-size: 1.1rem; }
    .menu ul a::after { display: none; }
    .menu__cta { justify-content: center; font-size: 1rem; }
}

/* ---------- Seções ---------- */
.secao { padding: clamp(4rem, 9vw, 7.5rem) 0; position: relative; }
.secao--alt { background: linear-gradient(180deg, rgba(255, 255, 255, .025), rgba(255, 255, 255, .0)); border-block: 1px solid var(--linha); }
.secao__cab { max-width: 760px; margin-bottom: 3rem; }
.secao__cab--centro { margin-inline: auto; text-align: center; }
.grade-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.grade-2--topo { align-items: start; }
@media (max-width: 860px) { .grade-2 { grid-template-columns: 1fr; } }

/* ---------- Hero ---------- */
.hero {
    min-height: calc(100svh - var(--topo-h));
    display: flex; align-items: center;
    padding: 4rem 0 3rem;
    text-align: center;
    background: radial-gradient(900px 500px at 50% 0, rgba(123, 63, 176, .22), transparent 70%);
}
.hero__logo { width: min(760px, 88%); margin: 1.2rem auto 2rem; }
.hero__tag { max-width: 700px; margin: 0 auto; color: #e3e3ea; font-size: 1.2rem; }
.hero .acoes { justify-content: center; }
.hero__fotos { display: grid; grid-template-columns: repeat(5, 1fr); gap: .9rem; margin-top: 3.5rem; }
.hero__fotos img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; border-radius: 12px; border: 1px solid var(--linha); }
@media (max-width: 760px) {
    .hero__fotos { grid-template-columns: repeat(3, 1fr); }
    .hero__fotos img:nth-child(n+4) { display: none; }
}

/* Cabeçalho de páginas internas */
.pagina-topo { padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(2rem, 5vw, 3.5rem); border-bottom: 1px solid var(--linha); background: radial-gradient(800px 400px at 15% 0, rgba(123, 63, 176, .2), transparent 70%); }
.pagina-topo .lead { max-width: 720px; margin-bottom: 0; }

/* ---------- Números ---------- */
.numeros { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 2.5rem; }
.numero { padding: 1.5rem 1.2rem; border: 1px solid var(--linha); border-radius: var(--raio); background: var(--card); text-align: center; }
.numero strong { display: block; font: 600 clamp(2.2rem, 4vw, 3.2rem)/1 var(--serif); background: var(--grad-titulo); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; }
.numero span { display: block; margin-top: .5rem; font-size: .85rem; color: var(--suave); line-height: 1.4; }
@media (max-width: 760px) { .numeros { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.4rem; }
.card {
    padding: 2rem 1.8rem; border-radius: var(--raio);
    background: var(--card); border: 1px solid var(--linha);
    transition: transform .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(196, 160, 232, .45); }
.card h3 { font: 600 1.7rem/1.1 var(--serif); color: var(--lilas); margin-bottom: 1rem; }
.card p { color: var(--suave); margin-bottom: 0; }
.card ul { list-style: none; }
.card li { padding: .35rem 0; border-bottom: 1px dashed var(--linha); }
.card li:last-child { border-bottom: 0; }
.card--link { text-decoration: none; display: block; }

/* ---------- Método 3R's ---------- */
.rs { display: grid; gap: 1.2rem; }
.r { display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; align-items: start; padding: 1.5rem; border-radius: var(--raio); background: var(--card); border: 1px solid var(--linha); }
.r__n { font: 700 3.4rem/1 var(--serif); background: var(--grad-titulo); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; min-width: 4.2rem; }
.r h3 { margin-bottom: .3rem; font-size: 1.05rem; letter-spacing: .08em; text-transform: uppercase; }
.r h3 span { color: var(--lilas); }
.r p { margin: 0; color: var(--suave); }

/* ---------- Listas com marcador ---------- */
.lista-marca { list-style: none; }
.lista-marca--topo { margin-top: 1.5rem; }
.lista-marca li { position: relative; padding: .5rem 0 .5rem 1.8rem; }
.lista-marca li::before { content: ""; position: absolute; left: 0; top: 1.05rem; width: .65rem; height: .65rem; border-radius: 50%; background: var(--grad-btn); }

/* ---------- Imagens ---------- */
.moldura { border-radius: var(--raio); overflow: hidden; border: 1px solid var(--linha); background: var(--card); }
.moldura img { width: 100%; }
.moldura button { display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; }
.numeros--solto { margin-top: 0; }
.grade-2 > .numeros { margin-top: 0; }
.galeria { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.galeria--larga { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.galeria button, .galeria a { padding: 0; border: 0; background: none; cursor: zoom-in; display: block; border-radius: 14px; overflow: hidden; position: relative; }
.galeria img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 1 / 1; transition: transform .45s ease; }
.galeria--16x9 img { aspect-ratio: 16 / 10; }
.galeria button:hover img { transform: scale(1.05); }

/* Filtros do portfólio */
.filtros { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; }
.filtro { padding: .6rem 1.2rem; border-radius: 999px; border: 1px solid var(--linha); background: transparent; color: var(--texto); font: 500 .85rem var(--sans); cursor: pointer; transition: background .2s, border-color .2s; }
.filtro:hover { border-color: var(--lilas); }
.filtro[aria-pressed="true"] { background: var(--grad-btn); border-color: transparent; }
.portfolio-grade { columns: 4 240px; column-gap: 1rem; }
.portfolio-grade .item { break-inside: avoid; margin-bottom: 1rem; }
.portfolio-grade .item[hidden] { display: none; }
.portfolio-grade button { width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; border-radius: 14px; overflow: hidden; display: block; }
.portfolio-grade img { width: 100%; height: auto; transition: transform .45s ease, filter .3s; }
.portfolio-grade button:hover img { transform: scale(1.04); filter: brightness(1.08); }

/* ---------- Performance ---------- */
.resultados { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.4rem; }
.resultado { padding: 2.2rem 2rem; border-radius: var(--raio); background: linear-gradient(160deg, #1b1426, var(--card)); border: 1px solid rgba(196, 160, 232, .25); }
.resultado__tipo { font-size: .8rem; letter-spacing: .2em; text-transform: uppercase; color: var(--suave); margin-bottom: 1.2rem; }
.resultado__linha { display: grid; grid-template-rows: auto auto; grid-auto-flow: column; grid-auto-columns: auto; justify-content: start; column-gap: 2.6rem; row-gap: .35rem; align-items: end; font-family: var(--serif); }
.resultado__par { display: contents; }
.resultado__par small { font: 500 .8rem var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); }
.resultado__invest { font-size: clamp(1.8rem, 3vw, 2.4rem); color: var(--suave); line-height: 1; position: relative; }
.resultado__invest::after { content: "\2192"; position: absolute; right: -1.8rem; bottom: .1rem; font: 400 1.3rem var(--sans); color: var(--lilas); }
.resultado__volta { font-size: clamp(2.4rem, 4.5vw, 3.6rem); font-weight: 700; background: var(--grad-titulo); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; line-height: 1; }
.resultado p { margin: 1.2rem 0 0; color: var(--suave); font-size: .95rem; }

/* ---------- Cases ---------- */
.case { padding: clamp(2.5rem, 5vw, 4rem) 0; border-bottom: 1px solid var(--linha); }
.case:last-child { border-bottom: 0; }
.case__logo { height: 70px; width: auto; object-fit: contain; object-position: left; margin-bottom: 1.5rem; }
.case h2 { font: 600 clamp(2rem, 4vw, 3rem)/1.05 var(--serif); margin-bottom: 1rem; }
.case__destaques { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .9rem; margin: 1.5rem 0; }
.case__destaques .numero { text-align: left; padding: 1.1rem 1.2rem; }
.case__destaques .numero strong { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.case__fotos { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .8rem; }
.case__fotos img { border-radius: 12px; border: 1px solid var(--linha); width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.case-nav { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.8rem; }
.case-nav a { padding: .55rem 1.1rem; border: 1px solid var(--linha); border-radius: 999px; text-decoration: none; font-size: .85rem; font-weight: 500; }
.case-nav a:hover { border-color: var(--lilas); }

/* ---------- Clientes ---------- */
.logos { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1rem; }
.logos li { list-style: none; background: #fff; border-radius: 16px; display: grid; place-items: center; padding: 1.5rem 1.2rem; min-height: 120px; }
.logos img { max-height: 64px; width: auto; max-width: 100%; object-fit: contain; }
.faixa-logos { background: #fff; border-radius: 22px; padding: 1.4rem 2rem; }
.faixa-logos ul { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-around; gap: 1.4rem 2.2rem; list-style: none; }
.faixa-logos img { height: 46px; width: auto; }

/* ---------- Faixas / CTA ---------- */
.cta { text-align: center; padding: clamp(3.5rem, 8vw, 6rem) 1.5rem; border-radius: 28px; background: radial-gradient(700px 300px at 50% 0, rgba(154, 95, 208, .35), transparent 70%), var(--card); border: 1px solid rgba(196, 160, 232, .25); }
.cta .acoes { justify-content: center; }
.cta p { max-width: 620px; margin-inline: auto; color: #e3e3ea; }

/* ---------- Formulário ---------- */
.form { display: grid; gap: 1.1rem; }
.form__linha { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
@media (max-width: 640px) { .form__linha { grid-template-columns: 1fr; } }
.campo label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: .4rem; }
.campo input, .campo select, .campo textarea {
    width: 100%; padding: .95rem 1.1rem; border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, .16); background: #101015; color: var(--texto);
    font: 400 1rem var(--sans);
}
.campo select option { color: #000; }
.campo textarea { min-height: 150px; resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--lilas); box-shadow: 0 0 0 3px rgba(196, 160, 232, .2); }
.campo .erro { display: none; color: #ff9aa8; font-size: .8rem; margin-top: .3rem; }
.campo.invalido .erro { display: block; }
.campo.invalido input, .campo.invalido textarea, .campo.invalido select { border-color: #ff6b81; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__aviso { padding: 1rem 1.2rem; border-radius: 12px; display: none; font-weight: 500; }
.form__aviso.ok { display: block; background: rgba(60, 200, 120, .12); border: 1px solid rgba(60, 200, 120, .5); }
.form__aviso.falha { display: block; background: rgba(255, 90, 110, .1); border: 1px solid rgba(255, 90, 110, .5); }
.form small { color: var(--suave); }
.contato-lista { list-style: none; display: grid; gap: .9rem; }
.contato-lista li { display: flex; gap: .8rem; align-items: flex-start; }
.contato-lista .icone { color: var(--lilas); margin-top: .25rem; }
.contato-lista a { text-decoration: none; }

/* ---------- Rodapé ---------- */
.rodape { margin-top: 3rem; border-top: 1px solid var(--linha); background: #08080b; }
.rodape__grade { display: grid; grid-template-columns: 1.5fr 1fr 1.3fr; gap: 2.5rem; padding: 3.5rem 0 2.5rem; }
@media (max-width: 820px) { .rodape__grade { grid-template-columns: 1fr; } }
.rodape__logo { width: 210px; margin-bottom: 1rem; }
.rodape p { color: var(--suave); font-size: .95rem; max-width: 360px; }
.rodape h3 { font-size: .8rem; letter-spacing: .22em; text-transform: uppercase; color: var(--lilas); margin-bottom: 1rem; }
.rodape ul { list-style: none; display: grid; gap: .5rem; }
.rodape a { text-decoration: none; font-size: .95rem; }
.rodape__base { border-top: 1px solid var(--linha); padding: 1.2rem 0; color: var(--suave); }
.redes { display: flex !important; gap: .7rem; margin-top: 1rem; }
.redes a { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--linha); display: grid; place-items: center; }
.redes a:hover { background: var(--grad-btn); border-color: transparent; color: #fff; }

.flutuante-whats {
    position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 90;
    width: 58px; height: 58px; border-radius: 50%;
    display: grid; place-items: center; background: #1fb855; color: #fff;
    box-shadow: 0 10px 30px -8px rgba(31, 184, 85, .7);
    transition: transform .2s;
}
.flutuante-whats:hover { transform: scale(1.08); color: #fff; }
.flutuante-whats .icone { width: 30px; height: 30px; }

/* ---------- Lightbox ---------- */
.lightbox { border: 0; padding: 0; background: transparent; max-width: 96vw; max-height: 96vh; color: #fff; }
.lightbox::backdrop { background: rgba(0, 0, 0, .88); backdrop-filter: blur(4px); }
.lightbox figure { margin: 0; }
.lightbox img { max-width: 94vw; max-height: 84vh; width: auto; height: auto; border-radius: 12px; margin-inline: auto; }
.lightbox figcaption { text-align: center; padding-top: .8rem; font-size: .9rem; color: #ddd; }
.lightbox__fechar { position: fixed; top: 1rem; right: 1rem; width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .3); background: rgba(0, 0, 0, .5); color: #fff; cursor: pointer; display: grid; place-items: center; z-index: 5; }

/* ---------- Animações de entrada ---------- */
.js .revelar { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.js .revelar.visivel { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js .revelar { opacity: 1; transform: none; transition: none; }
    * { animation: none !important; }
}

/* Botões de foto dentro de cases */
.botao-foto { padding: 0; border: 0; background: none; cursor: zoom-in; display: block; }
.case__fotos { margin-top: 1.5rem; }