:root {
    --bg-color: #0F172A;
    --text-main: #F8FAFC;
    --text-secondary: #94A3B8;
    --accent-cyan: #22D3EE;
    --card-glass: rgba(30, 41, 59, 0.6);
    --border-ui: rgba(148, 163, 184, 0.1);
    --grid-color: rgba(34, 211, 238, 0.05);
    --glow-opacity: 0.15;
    --btn-text: #0F172A;

    /* VARIÁVEIS PARA AS TAGS */
    --tag-bg: rgba(30, 41, 59, 0.5);
    --tag-text: #F8FAFC;
    --tag-border: rgba(255, 255, 255, 0.05);
}

/* CRÍTICO: Define o comportamento de scroll globalmente no HTML.
   Isso permite que o navegador gerencie a suavidade nativamente.
*/
html {
    scroll-behavior: smooth;
}

/* --- TEMA CLARO (LIGHT MODE) --- */
body.light-mode {
    --bg-color: #F8FAFC;
    --text-main: #0F172A;
    --text-secondary: #475569;
    --accent-cyan: #0891B2;
    --card-glass: rgba(255, 255, 255, 0.8);
    --border-ui: rgba(15, 23, 42, 0.1);
    --grid-color: rgba(8, 145, 178, 0.08);
    --glow-opacity: 0.1;
    --btn-text: #F8FAFC;

    /* Override de Tags para Alto Contraste */
    --tag-bg: #E2E8F0;
    --tag-text: #0F172A;
    --tag-border: #CBD5E1;
}

/* --- ESTILOS GERAIS DO CORPO --- */
body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* --- CLASSES UTILITÁRIAS E COMPONENTES --- */

/* Tags de Tecnologia (Badges) */
.tech-tag {
    background-color: var(--tag-bg);
    color: var(--tag-text);
    border: 1px solid var(--tag-border);
    transition: all 0.3s ease;
}

/* Fontes Personalizadas */
.title-font { font-family: 'Outfit', sans-serif; }
.mono { font-family: 'JetBrains Mono', monospace; }

/* Efeito de Vidro (Glassmorphism) */
.glass {
    background: var(--card-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-ui);
    transition: background 0.4s ease, border 0.4s ease;
}

/* Hover com Brilho */
.glow-hover:hover {
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.2);
    border-color: var(--accent-cyan);
}

/* Texto Gradiente */
.gradient-text {
    background: linear-gradient(90deg, var(--accent-cyan), #818CF8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Background Glows (Parallax) */
.bg-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    z-index: -1;
    opacity: var(--glow-opacity);
    pointer-events: none;
    transition: transform 0.2s ease-out;
}

/* Ajuste específico para botão primário no modo claro */
body.light-mode .btn-primary {
    color: #FFFFFF;
}