:root {
    /* Paleta de Cores Refinada */
    --bg-main: #0f172a;      
    --bg-card: #1e293b;
    --bg-card-hover: #26334d;       
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.3);        
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
    --border-hover: #475569;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif; /* Fonte mais moderna */
}

/* Scrollbar Personalizada */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

body {
    background-color: var(--bg-main);
    /* Gradiente sutil de fundo */
    background-image: radial-gradient(circle at top right, #1e293b 0%, transparent 40%);
    background-attachment: fixed;
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Mudado de center para flex-start para scroll natural */
    min-height: 100vh;
    padding: 40px 20px;
}

/* Container Principal */
.main-layout {
    display: grid;
    grid-template-columns: 280px 1fr; 
    gap: 30px;
    width: 100%;
    max-width: 1100px; 
}

/* --- Coluna Esquerda: Perfil --- */
.profile-section {
    background-color: var(--bg-card);
    padding: 40px 30px;
    border-radius: 24px; /* Bordas mais arredondadas */
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: fit-content; 
    position: sticky;
    top: 40px;
    text-align: center;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.avatar-placeholder {
    width: 80px;
    height: 80px;
    background: rgba(56, 189, 248, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px auto;
    color: var(--accent);
    font-size: 2rem;
    border: 2px solid var(--accent-glow);
}

.profile-header h1 {
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.profile-header .role {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 5px;
}

.separator {
    height: 1px;
    background: var(--border);
    width: 100%;
    margin: 10px 0;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.4rem;
    transition: all 0.3s ease;
}

.social-links a:hover { 
    color: var(--accent); 
    transform: translateY(-3px); 
}

.skills-container h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
    color: var(--text-secondary);
    font-weight: 600;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.tags span {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 20px; /* Estilo pílula */
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: 0.2s;
}

.tags span:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(56, 189, 248, 0.05);
}

/* --- Coluna Direita: Conteúdo --- */
.content-section {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.card {
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    color: var(--text-primary);
}

h2::before {
    content: '';
    display: block;
    width: 4px;
    height: 20px;
    background-color: var(--accent);
    margin-right: 12px;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--accent);
}

.about-card p {
    line-height: 1.7;
    color: var(--text-secondary);
}

.about-card strong {
    color: var(--accent);
}

/* Grid de Projetos */
.grid-projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 20px;
}

.project-card {
    background-color: rgba(30, 41, 59, 0.7); /* Levemente transparente */
    padding: 25px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    position: relative;
    overflow: hidden;
}

/* Efeito de Hover no Card */
.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    background-color: var(--bg-card-hover);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 15px -5px rgba(56, 189, 248, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.card-header h3 { 
    font-size: 1.1rem; 
    font-weight: 600; 
    color: var(--text-primary);
}

.card-header .links a {
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: 0.2s;
}
.card-header .links a:hover { color: var(--accent); }

.project-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1; 
}

.tech-stack-mini {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tech-stack-mini small {
    font-size: 0.75rem;
    color: var(--accent);
    font-family: 'Fira Code', monospace; /* Fonte mono para código */
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
}

.mini-footer {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* --- Mobile --- */
@media (max-width: 850px) {
    body {
        padding: 15px;
    }

    .main-layout {
        grid-template-columns: 1fr; 
        gap: 25px;
    }

    .profile-section {
        position: relative; 
        top: 0;
        padding: 30px;
    }
    
    .project-card {
        min-height: auto; 
    }
}