/* Fundo geral e fonte */
body {
    font-family: 'Inter', sans-serif;
    background-color: #000000; /* Preto absoluto */
    position: relative;        /* para organização do overlay */
}

/* Vídeo de fundo ocupando toda a tela */
#bg-video {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;              /* fica atrás do overlay e do conteúdo */
    filter: brightness(1);    /* vídeo normal; quem escurece é o overlay abaixo */
}

/* OVERLAY de transparência/escurecimento sobre o vídeo
   → ajuste o último número (0.0 a 1.0) para mais/menos transparência
   ex: 0.30 = bem escuro | 0.55 = meio termo | 0.8 = bem claro */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.25); /* ⇦ controle REAL de transparência */
    z-index: -1;
    pointer-events: none; /* não atrapalha cliques */
}

/* Modal genérico */
.modal {
    display: none; /* Oculto por padrão */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #1a1a1a;
    margin: auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 480px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    position: relative;
    animation: fadeIn 0.3s ease-out;
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-button:hover,
.close-button:focus {
    color: #fff;
    text-decoration: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =========================
   NAV DAS CALCULADORAS
   ========================= */

.calc-nav-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 2.5rem;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden; /* evita estouro visual; mobile sobrescreve */
}

.calc-nav {
    position: relative;
    --count: 4; /* 1 botão principal + 3 calculadoras extras (a quarta entra no repeat) */
}

.calc-nav-list {
    padding: 0;
    margin: 0;
    display: inline-grid;
    grid-auto-flow: column;
    list-style-type: none;
    /* primeiro item (principal) + 3 colunas expansíveis */
    grid-template-columns: auto repeat(3, calc((var(--active, 0) * 170px) + 16px));
    column-gap: 0.4rem;
    transition: grid-template-columns 0.35s cubic-bezier(0.19, 1, 0.22, 1);
}

.calc-nav-list li {
    display: grid;
    justify-content: end;
    z-index: calc(var(--count) - var(--index));
}

.calc-nav a,
.calc-nav button {
    border: none;
    cursor: pointer;
    background: rgba(79, 70, 229, 0.16); /* Indigo transparente */
    display: inline-block;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    margin: 0;
    color: #E5E7EB;
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(24px);
    transition: color 0.2s, background 0.2s, transform 0.2s;
    white-space: nowrap;
}

.calc-nav a:hover,
.calc-nav button:hover,
.calc-nav a:focus-visible,
.calc-nav button:focus-visible {
    background: #6366F1;
    color: white;
    transform: translateY(-1px);
    outline: none;
}

.calc-nav a:visited {
    color: #E5E7EB;
}

.calc-nav svg {
    height: 18px;
    width: 18px;
    fill: currentColor;
}

.calc-nav span {
    display: grid;
    align-items: center;
    grid-auto-flow: column;
    grid-template-columns: 18px 1fr;
    gap: 0.25rem;
}

/* Itens 2,3,4 começam “fechados” (texto some) e abrem com hover/click */
.calc-nav-list li:nth-of-type(n+2) span {
    opacity: var(--active, 0);
    transition: opacity 0.25s ease-out;
}

/* Quando hover/focus ou classe .open estiver ativa, expande */
.calc-nav:hover .calc-nav-list,
.calc-nav:focus-within .calc-nav-list,
.calc-nav.open .calc-nav-list {
    --active: 1;
}

/* Em telas bem pequenas, deixa um pouco mais compacto */
@media (max-width: 480px) {
    .calc-nav-list {
        grid-template-columns: auto repeat(3, calc((var(--active, 0) * 140px) + 14px));
    }
    .calc-nav a,
    .calc-nav button {
        font-size: 0.75rem;
        padding: 0.45rem 0.75rem;
    }
}

/* MOBILE: MENU COM SCROLL LATERAL */
@media (max-width: 640px) {
    .calc-nav-wrapper {
        justify-content: flex-start;
        overflow-x: auto;                 /* permite rolar horizontalmente */
        -webkit-overflow-scrolling: touch;
        padding-inline: 0.75rem;
    }

    .calc-nav {
        min-width: max-content;           /* largura baseada no conteúdo */
    }
}

/* Banner fino fixo no rodapé */
#footer-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 32px;                 /* fininho */
    background: rgba(0, 0, 0, 0.9);
    border-top: 1px solid #1f2937;
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

#footer-banner p {
    margin: 0;
    font-size: 12px;
    color: #9ca3af;               /* cinza claro */
}

/* =========================
   BOTÕES 3D ESPECIAIS
   (Salários Reais / Comissário)
   ========================= */

.cube-btn {
    position: relative;
    width: 200px;
    height: 56px;
    transition: 4s;
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateX(0deg);
}

.cube-btn:hover {
    transform: perspective(1000px) rotateX(360deg);
}

.cube-btn span {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    background: rgba(255, 255, 255, 0.9);
    font-family: sans-serif;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 2px;
    transition: 0.5s;
    border: 2px solid #000;
    box-sizing: border-box;
    box-shadow: inset 0 20px 50px rgba(0, 0, 0, 0.2);
    text-align: center;
    padding-inline: 0.5rem;
}

.cube-btn:hover span {
    color: #fff;
    background: rgba(249, 115, 22, 0.8); /* laranja no hover */
    border-color: #f97316;
}

.cube-btn span:nth-child(1) {
    transform: rotateX(360deg) translateZ(25px);
}
.cube-btn span:nth-child(2) {
    transform: rotateX(270deg) translateZ(25px);
}
.cube-btn span:nth-child(3) {
    transform: rotateX(180deg) translateZ(25px);
}
.cube-btn span:nth-child(4) {
    transform: rotateX(90deg) translateZ(25px);
}