@layer layout {
    /* ==========================================================================
   LAYOUT.CSS - Header, Footer e Estrutura Global
   ========================================================================== */

    /* 1. HEADER */
    .social-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        padding: 15px 50px;
        background-color: rgba(244, 247, 249, 0.9);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        z-index: 1000;
        border-bottom: 1px solid var(--border-color);
        transition: all var(--transition-speed) ease;
    }

    html.dark-theme .social-header {
        background-color: rgba(26, 30, 38, 0.9);
    }

    .header-container {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    /* Bloco Esquerda: Logo + Nav */
    .header-branding {
        display: flex;
        align-items: center;
        gap: 25px;
    }

    .header-logo-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 30px;
        width: auto;
        transition: transform 0.3s ease;
    }

    .header-logo-btn:hover {
        transform: scale(1.1);
        opacity: 1;
    }

    .header-logo-btn img {
        height: 100%;
        width: auto;
        object-fit: contain;
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    }

    /* Padrão (light): ícone escuro legível em fundo claro */
    .header-logo-btn img {
        content: url('/assets/imagens/icons/icon-dark.webp');
    }

    /* Dark theme: ícone claro legível em fundo escuro */
    html.dark-theme .header-logo-btn img {
        content: url('/assets/imagens/icons/icon.webp');
    }

    .header-divider {
        height: 20px;
        width: 1px;
        background-color: var(--border-color);
        display: block;
    }

    .social-nav {
        display: flex;
        gap: 20px;
    }

    .social-nav a {
        display: flex;
        align-items: center;
        color: var(--secondary-text-color);
        font-size: 14px;
    }

    .social-nav a:hover {
        color: var(--text-color);
    }

    .social-nav a i,
    .social-nav a svg {
        margin-right: 8px;
        font-size: 18px;
    }

    .nav-portfolio-link i,
    .nav-portfolio-link svg {
        opacity: 0.85;
        transition: opacity var(--transition-speed) ease;
    }

    .nav-portfolio-link:hover i,
    .nav-portfolio-link:hover svg {
        opacity: 1;
    }

    /* Bloco Direita: Controles */
    .header-controls {
        display: flex;
        align-items: center;
        gap: 15px;
    }

    #theme-toggle,
    #current-lang {
        background: transparent;
        border: 1px solid var(--border-color);
        color: var(--secondary-text-color);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        cursor: pointer;
        font-size: 16px;
        display: flex;
        justify-content: center;
        align-items: center;
        transition: all var(--transition-speed) ease;
    }

    #theme-toggle:hover,
    #current-lang:hover {
        color: var(--text-color);
        border-color: var(--text-color);
    }

    /* Padrão (light): mostra sol */
    #theme-toggle .fa-sun,
    #theme-toggle .lucide-sun {
        display: block !important;
    }

    #theme-toggle .fa-moon,
    #theme-toggle .lucide-moon {
        display: none !important;
    }

    /* Dark theme: mostra lua */
    html.dark-theme #theme-toggle .fa-sun,
    html.dark-theme #theme-toggle .lucide-sun {
        display: none !important;
    }

    html.dark-theme #theme-toggle .fa-moon,
    html.dark-theme #theme-toggle .lucide-moon {
        display: block !important;
    }

    .lang-selector {
        position: relative;
    }

    .lang-options {
        display: none;
        position: absolute;
        top: calc(100% + 10px);
        right: 0;
        background-color: var(--container-bg-color);
        border: 1px solid var(--border-color);
        border-radius: 8px;
        box-shadow: var(--card-shadow);
        overflow: hidden;
        z-index: 1001;
        width: 150px;
    }

    .lang-options.show {
        display: block;
    }

    .lang-options button {
        display: block;
        width: 100%;
        padding: 10px 15px;
        background: none;
        border: none;
        color: var(--text-color);
        text-align: left;
        cursor: pointer;
        font-size: 14px;
    }

    .lang-options button:hover {
        background-color: rgba(125, 125, 125, 0.1);
    }

    /* 2. FOOTER */
    .site-footer {
        padding: 60px 20px 30px;
        background-color: var(--bg-color);
        position: relative;
    }

    /* Linha de luz sutil separando o conteúdo do footer */
    .site-footer::before {
        content: '';
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 80%;
        height: 1px;
        background: linear-gradient(90deg,
                transparent 0%,
                rgba(255, 255, 255, 0.1) 20%,
                rgba(255, 255, 255, 0.2) 50%,
                rgba(255, 255, 255, 0.1) 80%,
                transparent 100%);
        box-shadow: 0 -1px 10px rgba(var(--highlight-color-rgb), 0.1);
    }

    .footer-content {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 40px;
        margin-bottom: 50px;
    }

    .footer-col h3 {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }

    .footer-col p {
        color: var(--secondary-text-color);
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .footer-col p svg {
        flex-shrink: 0;
    }

    .footer-link {
        display: block;
        color: var(--secondary-text-color);
        margin-bottom: 8px;
    }

    .footer-link:hover {
        color: var(--highlight-color);
    }

    .footer-bottom {
        text-align: center;
        color: var(--secondary-text-color);
        font-size: 0.9rem;
        padding-top: 20px;
        border-top: 1px solid var(--border-color);
    }

    .footer-socials {
        display: flex;
        gap: 15px;
        margin-top: 15px;
    }

    .footer-socials a {
        font-size: 1.2rem;
        color: var(--secondary-text-color);
        transition: color 0.3s ease;
    }

    .footer-socials a:hover {
        color: var(--highlight-color);
    }

    /* 3. FOOTER UTILITIES */
    .footer-location {
        font-size: 0.8rem;
        opacity: 0.7;
    }

    /* 4. HEADER MOBILE */
    @media (max-width: 768px) {
        .header-branding {
            gap: 15px;
        }

        .header-divider {
            display: none;
        }

        .link-text {
            display: none;
        }

        .header-logo-btn {
            height: 24px;
            width: 24px;
        }

        .social-header {
            padding: 10px 20px;
        }

        .social-nav a i,
        .social-nav a svg {
            margin-right: 0;
            font-size: 1.1rem;
        }

        .nav-portfolio-link i,
        .nav-portfolio-link svg {
            font-size: 0.95rem;
        }
    }
}