/* =========================================
   FOOTER (Mobile First)
   ========================================= */
.site-footer {
    background-color: var(--bg-base); /* Fundo #0A0F1A */
    border-top: 1px solid var(--border-glass);
    padding: 40px 0;
    margin-top: auto; /* Empurra o footer para o final da tela caso haja pouco conteúdo */
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 32px;
    align-items: center;
    text-align: center;
}

/* Marca e Copyright */
.footer-branding {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.footer-logo-link {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
}

.footer-logo {
    height: auto;
    max-height: 38px;
    width: auto;
    object-fit: contain;
    background: transparent !important;
    border-radius: 0 !important;
    padding: 0 !important;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), filter 0.3s ease;
}

.footer-logo-link:hover .footer-logo {
    transform: scale(1.04);
    filter: drop-shadow(0 0 8px rgba(251, 146, 60, 0.4));
}

.footer-copyright {
    color: var(--color-primary); /* Laranja #E3872D conforme o design */
    font-family: var(--font-body);
    font-size: 14px;
    margin: 0;
}

/* Navegação Social */
.footer-social ul,
.footer-social ol,
.footer-social li,
.footer-navigation ul,
.footer-navigation li {
    list-style: none !important;
    list-style-type: none !important;
}

.footer-social ul,
.footer-navigation ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    padding: 0;
    margin: 0;
}

.footer-social li,
.footer-navigation li {
    padding: 0;
    margin: 0;
}

.footer-social li::before,
.footer-social li::after,
.footer-navigation li::before,
.footer-navigation li::after {
    content: none !important;
    display: none !important;
}

.footer-social a,
.footer-navigation a {
    font-family: var(--font-mono); /* Tipografia técnica: JetBrains Mono */
    font-size: 14px;
    color: var(--text-muted); /* Cor cinza sutil do design */
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
}

.footer-social a:hover,
.footer-social a:focus,
.footer-navigation a:hover,
.footer-navigation a:focus {
    color: var(--color-secondary); /* Efeito neon blue ao passar o mouse */
    outline: none;
}

/* =========================================
   MEDIA QUERIES (DESKTOP)
   ========================================= */
@media (min-width: 768px) {
    .site-footer {
        padding: 56px 0;
    }

    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }

    .footer-branding {
        align-items: flex-start;
    }

    .footer-social ul {
        justify-content: flex-end;
        gap: 32px;
    }
}

/* =========================================
   BOTÃO VOLTAR AO TOPO (Back to Top)
   ========================================= */
.back-to-top-btn {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(10, 15, 26, 0.85);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: #38bdf8;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.back-to-top-btn.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top-btn:hover {
    background: var(--color-primary, #ea580c);
    color: #ffffff;
    border-color: #ea580c;
    transform: translateY(-4px);
    box-shadow: 0 0 20px rgba(234, 88, 12, 0.5);
}