/* 1. Variáveis e Design System (Linear/Vercel Vibe) */
        :root {
            /* Cores Dark (Default) */
            --bg-color: #0a0a0a;
            --surface-color: #111111;
            --surface-hover: #1a1a1a;
            --border-color: rgba(255, 255, 255, 0.1);
            --text-primary: #ededed;
            --text-secondary: #a1a1aa;
            --brand-color: #ffffff;
            --brand-color-invert: #000000;
            --focus-ring: rgba(255, 255, 255, 0.3);
            
            /* Tipografia */
            --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
            
            /* Fluid Typography (clamp) */
            --text-sm: clamp(0.875rem, 0.8vw + 0.5rem, 0.95rem);
            --text-base: clamp(1rem, 1vw + 0.75rem, 1.125rem);
            --text-lg: clamp(1.125rem, 1.5vw + 0.875rem, 1.5rem);
            --text-xl: clamp(1.5rem, 2vw + 1rem, 2rem);
            --text-xxl: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            
            /* Espaçamentos e Layout */
            --container-width: 1000px;
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 4rem;
            --space-xl: 8rem;
            
            /* Transições */
            --transition-fast: 0.15s ease;
            --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        [data-theme="light"] {
            --bg-color: #fafafa;
            --surface-color: #ffffff;
            --surface-hover: #f4f4f5;
            --border-color: rgba(0, 0, 0, 0.1);
            --text-primary: #171717;
            --text-secondary: #52525b;
            --brand-color: #000000;
            --brand-color-invert: #ffffff;
            --focus-ring: rgba(0, 0, 0, 0.3);
        }

        /* 2. Reset Profissional */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-color);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            transition: background-color var(--transition-normal), color var(--transition-normal);
            overflow-x: hidden;
        }

        /* 3. Acessibilidade Base */
        .skip-link {
            position: absolute;
            top: -40px;
            left: 0;
            background: var(--brand-color);
            color: var(--brand-color-invert);
            padding: 8px 16px;
            z-index: 1000;
            font-weight: 500;
            text-decoration: none;
            transition: top var(--transition-fast);
        }
        .skip-link:focus {
            top: 0;
        }

        :focus-visible {
            outline: 2px solid var(--text-primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        /* 4. Layout e Container */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        section {
            padding: clamp(4rem, 10vw, 8rem) 0; 
        }

        /* 5. Header & Navegação */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background-color: color-mix(in srgb, var(--bg-color) 80%, transparent);
            border-bottom: 1px solid var(--border-color);
            z-index: 100;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo {
            font-weight: 700;
            font-size: var(--text-lg);
            text-decoration: none;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .nav-controls {
    display: flex;
    gap: 0.75rem; /* Respiro entre os ícones */
    align-items: center;
}

        .icon-btn {
    background: transparent;
    border: 1px solid var(--border-color, rgba(255,255,255,0.1));
    color: var(--text-secondary, #a1a1aa);
    width: 36px;
    height: 36px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

        .icon-btn:hover {
    color: var(--text-primary, #ededed);
    background: var(--surface-hover, #1a1a1a);
    border-color: var(--text-secondary, #a1a1aa);
}

       .icon-btn svg {
    width: 18px !important;
    height: 18px !important;
}

        /* --- CLASSES UTILITÁRIAS PARA SVGs --- */
       .svg-fill {
    fill: currentColor !important;
    stroke: none !important;
}

.svg-stroke {
    fill: none !important;
    stroke: currentColor !important;
    stroke-width: 2 !important;
    stroke-linecap: round !important;
    stroke-linejoin: round !important;
}

        /* Divisor visual elegante no header */
        .nav-divider {
    width: 1px;
    height: 20px;
    background-color: var(--border-color, rgba(255,255,255,0.1));
    margin: 0 0.25rem;
}

        /* 6. Typography H1, H2, P */
        h1, h2, h3 {
            line-height: 1.2;
            letter-spacing: -0.03em;
        }

        h2 {
            font-size: var(--text-xl);
            margin-bottom: var(--space-md);
            font-weight: 600;
        }

        .text-muted {
            color: var(--text-secondary);
        }

        /* 7. Section: Hero */
        #hero {
            padding-top: calc(70px + clamp(2rem, 5vw, 4rem));
            min-height: 90vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            margin-bottom: var(--space-xl);
            animation: fadeIn 1s ease-out;
        }

        .hero-badge {
            display: inline-block;
            font-family: var(--font-mono);
            font-size: var(--text-sm);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            padding: 4px 12px;
            border-radius: 99px;
            margin-bottom: var(--space-md);
            background: var(--surface-color);
        }

        #hero h1 {
            font-size: var(--text-xxl);
            font-weight: 700;
            margin-bottom: var(--space-sm);
            max-width: 800px;
        }

        #hero p {
            font-size: var(--text-lg);
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: var(--space-md);
        }

        .hero-actions {
            display: flex;
            gap: var(--space-sm);
            margin-top: var(--space-md);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            font-weight: 500;
            font-size: var(--text-base);
            text-decoration: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .btn-primary {
            background-color: var(--brand-color);
            color: var(--brand-color-invert);
        }

        .btn-primary:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border-color: var(--border-color);
        }

        .btn-secondary:hover {
            background-color: var(--surface-hover);
        }

        /* --- NOVOS ESTILOS PARA ÍCONES E SOCIAL BAR --- */
        .icon-sm {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .social-bar {
            display: flex;
            justify-content: center;
            gap: var(--space-md);
            margin-bottom: var(--space-md);
        }

        .social-icon {
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--surface-color);
            border: 1px solid var(--border-color);
        }

        .social-icon:hover {
            color: var(--text-primary);
            border-color: var(--text-secondary);
            transform: translateY(-4px); /* Animação suave para cima */
        }

        .social-icon-svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
            stroke: none;
        }
        
        /* Ajuste específico para ícones que usam stroke nativamente (ex: email) */
        .social-icon .stroke-icon {
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
        }

        /* 8. Section: Grid de Projetos */

        .grid-projects {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--space-md);
        }

        .card {
            background: var(--surface-color);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: var(--space-md);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            transition: transform var(--transition-normal), border-color var(--transition-normal);
            text-decoration: none;
            color: inherit;
        }

        .card:hover {
            transform: translateY(-4px);
            border-color: var(--text-secondary);
        }

        .card h3 {
            font-size: var(--text-base);
            font-weight: 600;
        }

        .card p {
            font-size: var(--text-sm);
            color: var(--text-secondary);
            flex-grow: 1; /* Empurra o rodapé para o fundo */
        }

        .tech-stack {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
        }

        .tech-tag {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            padding: 2px 8px;
            background: var(--bg-color);
            border: 1px solid var(--border-color);
            border-radius: 4px;
            color: var(--text-secondary);
        }

        /* 9. Section: Skills */

        .skills-container {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
        }

        .skill-group h3 {
            font-family: var(--font-mono);
            font-size: var(--text-sm);
            color: var(--text-secondary);
            margin-bottom: var(--space-sm);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .skill-list {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm);
        }

        .skill-badge {
            background: var(--surface-color);
            border: 1px solid var(--border-color);
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: var(--text-base);
            font-weight: 500;
        }

        /* 10. Footer */
        footer {
            border-top: 1px solid var(--border-color);
            padding: var(--space-md) 0;
            text-align: center;
            color: var(--text-secondary);
            font-size: var(--text-sm);
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: var(--space-md);
            margin-bottom: var(--space-sm);
            list-style: none;
        }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--text-primary);
        }

        /* Animações utilitárias */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Responsivo Extra */
        @media (max-width: 768px) {
            :root {
                --space-xl: 4rem; /* Reduz espaço vertical no mobile */
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
        }
        
        /* Preferência do usuário por menos animação */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        /* Loading Skeleton states para Supabase Fetch */
        .skeleton {
            background: linear-gradient(90deg, var(--surface-color) 25%, var(--surface-hover) 50%, var(--surface-color) 75%);
            background-size: 200% 100%;
            animation: loading 1.5s infinite;
            border-color: transparent;
        }
        @keyframes loading {
            0% { background-position: 200% 0; }
            100% { background-position: -200% 0; }
        }