/* Página de apresentação do Sintonia Operating System (antes do login) */
:root {
    --verde: #178a5c;
    --verde-escuro: #0e3b29;
    --noite: #0a1d15;
    --tinta: #141b18;
    --texto: #46524c;
    --texto-suave: #6f7b75;
    --linha: #dfe6e2;
    --fundo: #fdfdfb;
    --fundo-2: #f3f6f3;
    --amarelo: #ffd166;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    margin: 0;
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    color: var(--texto);
    background: var(--fundo);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0; color: var(--tinta); }
h1, h2 {
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 500;
    font-variation-settings: 'opsz' 120;
    letter-spacing: -0.015em;
    line-height: 1.08;
}
h3 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.s-container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 28px; }
.s-sobre {
    margin: 0 0 16px;
    font-size: 12.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    color: var(--verde);
}
.s-sobre-claro { color: var(--amarelo); }
.s-paragrafo { font-size: 18px; margin: 20px 0 0; max-width: 520px; }
.s-paragrafo-pequeno { font-size: 15.5px; color: var(--texto-suave); }
.s-num {
    font-family: 'Fraunces', Georgia, serif; font-weight: 500; font-size: 15px;
    color: var(--verde); letter-spacing: .04em;
}

/* ---------- Botões e links ---------- */
.s-botao {
    display: inline-flex; align-items: center; justify-content: center;
    height: 54px; padding: 0 28px; border-radius: 8px;
    background: var(--verde); color: #fff; font-weight: 700; font-size: 16px;
    transition: background .15s ease;
    white-space: nowrap;
}
.s-botao:hover { background: #126f4a; }
.s-botao-pequeno { height: 42px; padding: 0 18px; font-size: 14.5px; }
.s-botao-largo { width: 100%; }
.s-link-seta { font-weight: 700; font-size: 16px; display: inline-flex; align-items: center; gap: 8px; padding: 0 6px; }
.s-link-seta:hover span { transform: translateY(2px); }
.s-link-seta span { transition: transform .15s ease; }

/* ---------- Topo ---------- */
.s-topo {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10,29,21,.9);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.s-topo-linha { display: flex; align-items: center; gap: 24px; height: 70px; }
.s-marca { display: flex; align-items: center; gap: 11px; color: #fff; }
.s-marca-icone { width: 40px; height: 40px; flex-shrink: 0; display: flex; }
.s-marca-icone svg { width: 100%; height: 100%; }
.s-marca-nome i { font-style: normal; font-weight: 500; opacity: .8; }
.s-marca-nome { font-weight: 700; font-size: 18px; line-height: 1; letter-spacing: -0.01em; display: flex; flex-direction: column; }
.s-marca-nome small { font-weight: 600; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.6); margin-top: 4px; }
.s-nav { display: flex; gap: 2px; margin-left: auto; }
.s-nav a { color: rgba(255,255,255,.75); font-size: 14.5px; font-weight: 600; padding: 8px 12px; border-radius: 6px; }
.s-nav a:hover { color: #fff; }
.s-topo-acoes { display: flex; align-items: center; gap: 8px; }
.s-link-entrar { color: #fff; font-weight: 700; font-size: 14.5px; padding: 8px 14px; }

/* ---------- Abertura com foto ---------- */
.s-hero { position: relative; color: #fff; min-height: 640px; display: flex; flex-direction: column; justify-content: flex-end; isolation: isolate; }
.s-hero-foto { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 40%; z-index: -2; }
.s-hero-sombra {
    position: absolute; inset: 0; z-index: -1;
    background:
        linear-gradient(90deg, rgba(8,24,17,.92) 0%, rgba(8,24,17,.78) 40%, rgba(8,24,17,.25) 75%, rgba(8,24,17,.15) 100%),
        linear-gradient(180deg, rgba(8,24,17,.35) 0%, rgba(8,24,17,0) 30%, rgba(8,24,17,.55) 100%);
}
.s-hero-conteudo { padding-top: 120px; padding-bottom: 64px; }
.s-hero h1 { color: #fff; font-size: clamp(42px, 6vw, 76px); max-width: 11ch; }
.s-hero-sub { font-size: 19px; max-width: 560px; margin: 26px 0 36px; color: rgba(255,255,255,.86); }
.s-hero-acoes { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.s-hero-fatos {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    padding-top: 26px; padding-bottom: 30px;
    border-top: 1px solid rgba(255,255,255,.18);
}
.s-hero-fatos div { display: flex; flex-direction: column; gap: 2px; }
.s-hero-fatos strong { font-family: 'Fraunces', Georgia, serif; font-weight: 500; font-size: 26px; color: #fff; }
.s-hero-fatos span { font-size: 14px; color: rgba(255,255,255,.72); }

/* ---------- Seções ---------- */
.s-secao { padding: 110px 0; }
.s-secao-clara { background: var(--fundo-2); }
.s-secao-escura { background: var(--noite); color: rgba(255,255,255,.78); }
.s-secao-escura h2 { color: #fff; }
.s-secao h2 { font-size: clamp(32px, 4vw, 48px); }
.s-cabecalho-secao { max-width: 640px; margin-bottom: 56px; }
.s-duas-colunas { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 72px; align-items: start; }
.s-duas-colunas-invertida { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); align-items: center; }
.s-coluna-fixa { position: sticky; top: 100px; }
.s-figura { margin: 44px 0 0; border-radius: 10px; overflow: hidden; }
.s-figura img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.s-figura-escura { margin: 0; }
.s-figura-escura img { aspect-ratio: 5 / 4; }

/* Lista numerada de recursos */
.s-lista-recursos { list-style: none; margin: 0; padding: 0; }
.s-lista-recursos li { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 26px 0; border-top: 1px solid var(--linha); }
.s-lista-recursos li:last-child { border-bottom: 1px solid var(--linha); }
.s-lista-recursos .s-num { padding-top: 4px; }
.s-lista-recursos p { margin: 6px 0 0; font-size: 16px; color: var(--texto-suave); }

/* Lista simples com traço */
.s-lista-simples { list-style: none; margin: 28px 0 0; padding: 0; }
.s-lista-simples li { position: relative; padding: 11px 0 11px 26px; font-size: 16.5px; border-top: 1px solid rgba(255,255,255,.12); }
.s-lista-simples li::before { content: ''; position: absolute; left: 0; top: 23px; width: 12px; height: 2px; background: var(--amarelo); }
.s-lista-escura li { border-color: var(--linha); color: var(--tinta); }
.s-lista-escura li::before { background: var(--verde); }

/* Como funciona */
.s-passos { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; }
.s-passos li { border-top: 2px solid var(--tinta); padding-top: 18px; }
.s-passos .s-num { display: block; margin-bottom: 14px; }
.s-passos p { margin: 8px 0 0; font-size: 15.5px; color: var(--texto-suave); }

/* Preço */
.s-preco { align-items: center; }
.s-plano { background: #fff; border: 1px solid var(--linha); border-radius: 12px; padding: 36px; max-width: 460px; justify-self: end; width: 100%; }
.s-plano-valor { display: flex; align-items: baseline; gap: 3px; color: var(--tinta); margin-bottom: 8px; }
.s-plano-valor small { font-size: 20px; font-weight: 700; margin-right: 4px; }
.s-plano-valor strong { font-family: 'Fraunces', Georgia, serif; font-weight: 500; font-size: 72px; line-height: 1; letter-spacing: -0.03em; }
.s-plano-valor span { font-family: 'Fraunces', Georgia, serif; font-size: 28px; }
.s-plano-valor em { font-style: normal; font-size: 15px; color: var(--texto-suave); margin-left: 6px; }
.s-plano .s-lista-simples { margin: 18px 0 28px; }
.s-plano .s-lista-simples li { font-size: 15.5px; padding: 9px 0 9px 24px; }
.s-plano-nota { display: block; text-align: center; margin-top: 12px; font-size: 13.5px; color: var(--texto-suave); }

/* Dúvidas */
.s-duvidas-linha { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); }
.s-duvidas details { border-top: 1px solid var(--linha); }
.s-duvidas details:last-child { border-bottom: 1px solid var(--linha); }
.s-duvidas summary { list-style: none; cursor: pointer; padding: 20px 36px 20px 0; position: relative; font-weight: 700; font-size: 17.5px; color: var(--tinta); }
.s-duvidas summary::-webkit-details-marker { display: none; }
.s-duvidas summary::after { content: '+'; position: absolute; right: 4px; top: 18px; font-size: 22px; color: var(--verde); font-weight: 400; }
.s-duvidas details[open] summary::after { content: '–'; }
.s-duvidas details p { margin: -4px 0 22px; padding-right: 36px; font-size: 16px; }

/* Chamada final com foto */
.s-final { position: relative; color: #fff; isolation: isolate; padding: 120px 0; }
.s-final-foto { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 35%; z-index: -2; }
.s-final-sombra { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(8,24,17,.9) 0%, rgba(8,24,17,.7) 55%, rgba(8,24,17,.35) 100%); }
.s-final h2 { color: #fff; font-size: clamp(30px, 3.8vw, 46px); max-width: 16ch; margin-bottom: 34px; }

/* Rodapé */
.s-rodape { background: var(--noite); color: rgba(255,255,255,.55); padding: 36px 0; font-size: 13.5px; border-top: 1px solid rgba(255,255,255,.08); }
.s-rodape-linha { display: flex; align-items: center; justify-content: space-between; gap: 18px 32px; flex-wrap: wrap; }
.s-rodape p { margin: 0; max-width: 560px; }
.s-marca-rodape .s-marca-icone { width: 32px; height: 32px; }
.s-marca-rodape .s-marca-nome { font-size: 15px; }
.s-rodape-links { display: flex; gap: 18px; }
.s-rodape-links a:hover { color: #fff; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* ---------- Telas menores ---------- */
@media (max-width: 1000px) {
    .s-nav { display: none; }
    .s-topo-acoes { margin-left: auto; }
    .s-duas-colunas, .s-duas-colunas-invertida, .s-duvidas-linha { grid-template-columns: 1fr; gap: 44px; }
    .s-coluna-fixa { position: static; }
    .s-figura { max-width: 560px; }
    .s-figura-escura { order: 2; }
    .s-passos { grid-template-columns: 1fr 1fr; }
    .s-plano { justify-self: start; }
    .s-secao { padding: 80px 0; }
}
@media (max-width: 600px) {
    body { font-size: 16px; }
    .s-container { padding: 0 18px; }
    .s-topo-linha { height: 62px; gap: 10px; }
    .s-marca-icone { width: 34px; height: 34px; }
    .s-marca-nome { font-size: 16px; }
    .s-marca-nome small { display: none; }
    .s-link-entrar { padding: 8px 8px; }
    .s-hero { min-height: 0; }
    .s-hero-foto { object-position: 60% 30%; }
    .s-hero-conteudo { padding-top: 88px; padding-bottom: 44px; }
    .s-hero h1 { max-width: none; }
    .s-hero-sub { font-size: 17px; margin: 20px 0 28px; }
    .s-hero-acoes .s-botao { width: 100%; }
    .s-hero-fatos { grid-template-columns: 1fr; gap: 14px; padding-bottom: 24px; }
    .s-hero-fatos strong { font-size: 22px; }
    .s-secao { padding: 64px 0; }
    .s-passos { grid-template-columns: 1fr; gap: 28px; }
    .s-plano { padding: 26px 22px; }
    .s-plano-valor strong { font-size: 60px; }
    .s-final { padding: 84px 0; }
    .s-rodape-linha { flex-direction: column; align-items: flex-start; }
}