/* Chalés & Energia Solar — chalesolar.com
   Identidade própria: verde de mata, madeira e amarelo solar. */

:root {
  --mata: #1e3a2f;
  --mata-2: #2b5141;
  --mata-escura: #13261f;
  --madeira: #a8703a;
  --madeira-clara: #d9b48a;
  --sol: #f2b632;
  --creme: #f7f2e9;
  --creme-2: #efe6d6;
  --branco: #ffffff;
  --texto: #1d2420;
  --texto-2: #56615a;
  --borda: #e2d8c6;
  --font-titulo: "Fraunces", Georgia, serif;
  --font-corpo: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --raio: 18px;
  --sombra: 0 10px 30px rgba(19, 38, 31, .10);
  --largura: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--creme); color: var(--texto); font: 17px/1.65 var(--font-corpo); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-titulo); font-weight: 600; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--largura); margin: 0 auto; padding: 0 20px; }
section { padding: 96px 0; }
.secao--clara { background: var(--branco); }
.secao--escura { background: var(--mata); color: var(--creme); }
.secao--escura .sub { color: #c7d3cb; }

.rotulo { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--madeira); margin-bottom: 14px; }
.secao--escura .rotulo { color: var(--sol); }
.sub { color: var(--texto-2); font-size: 1.1rem; max-width: 640px; }
.cabeca { margin-bottom: 48px; }
.cabeca--centro { text-align: center; }
.cabeca--centro .sub { margin: 0 auto; }

/* Botões */
.botao { display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px; border-radius: 999px; font-weight: 600; font-size: 1rem; text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: transform .15s, background .15s; font-family: var(--font-corpo); }
.botao:hover { transform: translateY(-1px); }
.botao svg { width: 20px; height: 20px; flex-shrink: 0; }
.botao--sol { background: var(--sol); color: var(--mata-escura); }
.botao--sol:hover { background: #ffc440; }
.botao--mata { background: var(--mata); color: var(--creme); }
.botao--mata:hover { background: var(--mata-2); }
.botao--contorno { border-color: currentColor; color: inherit; background: transparent; }
.botoes { display: flex; flex-wrap: wrap; gap: 12px; }

/* Cabeçalho */
.topo { position: sticky; top: 0; z-index: 50; background: rgba(247, 242, 233, .94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--borda); }
.topo .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 72px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--mata); }
.logo svg { width: 40px; height: 40px; flex-shrink: 0; }
.logo__nome { font-family: var(--font-titulo); font-weight: 700; font-size: 1.2rem; line-height: 1.05; }
.logo__nome small { display: block; margin-top: 4px; font-family: var(--font-corpo); font-weight: 600; font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--madeira); }
.menu { display: flex; align-items: center; gap: 4px; }
.menu a { text-decoration: none; padding: 8px 12px; border-radius: 8px; font-weight: 500; font-size: .95rem; color: var(--texto); }
.menu a:hover, .menu a.ativo { color: var(--mata); background: var(--creme-2); }
.menu .botao { margin-left: 8px; padding: 10px 18px; font-size: .95rem; border-radius: 999px; }
.menu .botao:hover { background: #ffc440; }
.menu-botao { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--mata); }
.menu-botao svg { width: 28px; height: 28px; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 72px 0 96px; background: radial-gradient(1200px 500px at 85% 0%, #fbe9bd 0%, rgba(251, 233, 189, 0) 60%), var(--creme); }
.hero .container { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 em { font-style: italic; color: var(--madeira); }
.hero .sub { font-size: 1.2rem; margin-bottom: 28px; }
.hero__selos { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; padding: 0; list-style: none; color: var(--texto-2); font-size: .95rem; }
.hero__selos li { display: flex; align-items: center; gap: 8px; }
.hero__selos svg { width: 18px; height: 18px; color: var(--mata-2); }
.hero__arte { position: relative; }
.hero__arte img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--raio); box-shadow: var(--sombra); }
.hero__legenda, .foto-tag { position: absolute; left: 14px; bottom: 14px; background: rgba(19, 38, 31, .82); color: var(--creme); font-size: .78rem; font-weight: 600; padding: 5px 10px; border-radius: 999px; letter-spacing: .02em; }
.foto-tag { background: rgba(255, 255, 255, .88); color: var(--texto-2); font-weight: 500; }
.foto-tag--obra { background: rgba(19, 38, 31, .82); color: var(--creme); font-weight: 600; }

/* Ícones de linha */
svg.ic { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Ilustrações (SVG em linha, enquanto as fotos das obras não entram) */
.ilustra { color: var(--mata); }
.ilustra .linha { fill: none; stroke: currentColor; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }

/* Faixa de diferenciais */
.faixa { background: var(--mata); color: var(--creme); padding: 28px 0; }
.faixa ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.faixa li { display: flex; align-items: center; gap: 12px; font-weight: 500; font-size: .98rem; }
.faixa svg { width: 28px; height: 28px; color: var(--sol); flex-shrink: 0; }

/* Cards de modelo */
.modelos { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.modelo { background: var(--branco); border: 1px solid var(--borda); border-radius: var(--raio); overflow: hidden; display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s; }
.modelo:hover { transform: translateY(-3px); box-shadow: var(--sombra); }
.modelo__arte { position: relative; background: var(--creme-2); aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.modelo__arte img { width: 100%; height: 100%; object-fit: cover; }
.modelo__arte .ilustra { width: 78%; height: auto; }
.modelo__corpo { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.modelo__corpo p { color: var(--texto-2); }
.modelo__corpo .lista { margin-bottom: 24px; }
.modelo__corpo .botao { margin-top: auto; align-self: flex-start; }

.lista { list-style: none; padding: 0; margin: 0 0 1em; display: grid; gap: 10px; }
.lista li { position: relative; padding-left: 30px; }
.lista li::before { content: ""; position: absolute; left: 0; top: .45em; width: 18px; height: 18px; border-radius: 50%; background: var(--mata-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 12px no-repeat; }
.secao--escura .lista li::before { background-color: var(--sol); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2313261f' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E"); }

/* Duas colunas */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split--inverte > :first-child { order: 2; }
.split .ilustra { width: 100%; height: auto; }
.painel-arte { background: var(--creme-2); border-radius: var(--raio); padding: 28px; }
.secao--escura .painel-arte { background: var(--mata-escura); }
.secao--escura .ilustra { color: var(--creme); }

/* Cards pequenos */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--branco); border: 1px solid var(--borda); border-radius: var(--raio); padding: 26px; }
.card svg.ic { width: 36px; height: 36px; color: var(--madeira); margin-bottom: 14px; }
.card h3 { font-size: 1.15rem; }
.card p { color: var(--texto-2); margin: 0; font-size: .98rem; }
.secao--escura .card { background: var(--mata-2); border-color: rgba(255, 255, 255, .08); }
.secao--escura .card p { color: #d3ddd6; }
.secao--escura .card svg.ic { color: var(--sol); }

/* Fluxo do sistema off-grid */
.fluxo { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.fluxo li { position: relative; text-align: center; background: var(--mata); border-radius: 14px; padding: 20px 10px 16px; font-size: .9rem; color: #d3ddd6; }
.fluxo li strong { display: block; color: var(--creme); font-size: .98rem; margin-bottom: 2px; }
.fluxo svg { width: 40px; height: 40px; color: var(--sol); margin: 0 auto 10px; display: block; }
.fluxo li:not(:last-child)::after { content: "→"; position: absolute; right: -13px; top: 50%; transform: translateY(-50%); color: var(--sol); font-weight: 700; z-index: 1; }
.secao--escura .fluxo li { background: var(--mata-escura); }

/* Processo */
.passos { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: passo; }
.passo { background: var(--branco); border: 1px solid var(--borda); border-radius: var(--raio); padding: 26px; counter-increment: passo; position: relative; }
.passo::before { content: counter(passo, decimal-leading-zero); font-family: var(--font-titulo); font-size: 2.2rem; font-weight: 600; color: var(--madeira-clara); display: block; line-height: 1; margin-bottom: 12px; }
.passo h3 { font-size: 1.15rem; }
.passo p { color: var(--texto-2); margin: 0; font-size: .98rem; }

/* Obras */
.obras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.obras--2 { grid-template-columns: 1fr 1fr; }
.obra { margin: 0; border-radius: 14px; overflow: hidden; background: var(--creme-2); position: relative; aspect-ratio: 4 / 3; }
.obra img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.obra:hover img { transform: scale(1.04); }
.obra figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px 14px 12px; background: linear-gradient(transparent, rgba(0, 0, 0, .65)); color: #fff; font-size: .9rem; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--borda); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; font-weight: 600; font-size: 1.08rem; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 1.6rem; font-weight: 400; color: var(--madeira); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--texto-2); padding-bottom: 20px; margin: 0; }

/* Orçamento */
.orcamento { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.contatos { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.contatos li { display: flex; gap: 12px; align-items: flex-start; }
.contatos svg { width: 22px; height: 22px; color: var(--sol); flex-shrink: 0; margin-top: 3px; }
.contatos a { color: var(--creme); }
.form { background: var(--branco); color: var(--texto); border-radius: var(--raio); padding: 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; box-shadow: var(--sombra); }
.form .inteiro { grid-column: 1 / -1; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: .92rem; }
.form input, .form select, .form textarea { font: inherit; font-weight: 400; color: var(--texto); border: 1px solid #d6ccb9; border-radius: 10px; padding: 12px 14px; background: #fffdf9; width: 100%; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--sol); outline-offset: 1px; border-color: var(--madeira); }
.form textarea { resize: vertical; min-height: 96px; }
.form .botao { justify-content: center; }
.form small { color: var(--texto-2); font-size: .85rem; }

/* CTA */
.cta { text-align: center; }
.cta .sub { margin: 0 auto 28px; }
.cta .botoes { justify-content: center; }

/* Página interna */
.page-hero { padding: 64px 0 72px; background: radial-gradient(900px 400px at 90% 0%, #fbe9bd 0%, rgba(251, 233, 189, 0) 60%), var(--creme); }
.page-hero .container { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.migalha { font-size: .9rem; color: var(--texto-2); margin-bottom: 16px; }
.migalha a { color: var(--texto-2); }
.texto { max-width: 760px; }
.texto p { color: var(--texto-2); }

/* Rodapé */
.rodape { background: var(--mata-escura); color: #c7d3cb; padding: 64px 0 28px; font-size: .95rem; }
.rodape .container > .colunas { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.rodape .logo { color: var(--creme); margin-bottom: 14px; }
.rodape h4 { color: var(--creme); font-family: var(--font-corpo); font-size: .85rem; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 14px; }
.rodape ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.rodape a { color: #c7d3cb; text-decoration: none; }
.rodape a:hover { color: var(--sol); }
.rodape__base { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .85rem; }

/* WhatsApp flutuante */
.whats-flutuante { position: fixed; right: 20px; bottom: 20px; width: 60px; height: 60px; border-radius: 50%; background: #25d366; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(0, 0, 0, .25); z-index: 60; transition: transform .15s; }
.whats-flutuante:hover { transform: scale(1.06); }
.whats-flutuante svg { width: 32px; height: 32px; }

/* Revelar ao rolar */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visivel { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* Responsivo */
@media (max-width: 980px) {
  .hero .container, .page-hero .container, .split, .orcamento { grid-template-columns: 1fr; gap: 40px; }
  .split--inverte > :first-child { order: 0; }
  .faixa ul { grid-template-columns: 1fr 1fr; }
  .cards, .passos, .obras { grid-template-columns: 1fr 1fr; }
  .fluxo { grid-template-columns: repeat(3, 1fr); row-gap: 18px; }
  .fluxo li:nth-child(3)::after { display: none; }
  .rodape .container > .colunas { grid-template-columns: 1fr 1fr; }
  .rodape .colunas > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .menu-botao { display: block; }
  .menu { display: none; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--creme); border-bottom: 1px solid var(--borda); padding: 8px 16px 18px; box-shadow: var(--sombra); }
  .menu.aberto { display: flex; }
  .menu a { padding: 13px 8px; border-bottom: 1px solid var(--borda); border-radius: 0; }
  .menu .botao { margin: 14px 0 0; justify-content: center; border-radius: 999px; border-bottom: 0; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding: 72px 0; }
  .container { padding: 0 16px; }
  .hero { padding: 48px 0 72px; }
  .modelos, .cards, .passos, .obras, .faixa ul { grid-template-columns: 1fr; }
  .fluxo { grid-template-columns: 1fr; gap: 22px; }
  .fluxo li:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -21px; transform: translateX(-50%); }
  .form { grid-template-columns: 1fr; padding: 22px; }
  .rodape .container > .colunas { grid-template-columns: 1fr; }
  .botoes .botao { width: 100%; justify-content: center; }
}