:root {
    /* Cores principais */
    --azul-escuro: #0a1f44;
    --azul-medio: #1a3a8f;
    --azul-claro: #4da6ff;
    --branco: #ffffff;
    --fundo-claro: #f8f9fa;
    --texto-escuro: #333333;
    --sombra: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* === ESTILOS GERAIS === */
body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--branco);
    color: var(--texto-escuro);
    line-height: 1.6;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* ===== HEADER ===== */
header {
    background: linear-gradient(rgba(10, 31, 68, 0.7), rgba(26, 58, 143, 0.7)), 
                url('../css/plano.jpg') center/cover no-repeat;
    color: var(--branco);
    padding: 2.5rem 1rem;
    text-align: center;
    border-bottom: 5px solid var(--azul-claro);
}

header h1 {
    margin: 0;
    font-weight: 700;
    font-size: 2.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.menu-lateral {
    width: 260px;
    background: var(--gradiente-menu);
    padding: 25px 15px;
    box-shadow: var(--sombra-destaque);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    border-radius: 0 20px 20px 0;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

.menu-lateral::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    z-index: -1;
}

.menu-lateral::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
    z-index: -1;
}

.menu-lateral:hover {
    width: 280px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

/* Estilização dos itens do menu */
.menu-lateral .nav-link {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    margin-bottom: 8px;
}

.menu-lateral .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    transition: width 0.4s ease;
    z-index: -1;
}

.menu-lateral .nav-link:hover {
    color: white;
    transform: translateX(5px);
}

.menu-lateral .nav-link:hover::before {
    width: 100%;
}

.menu-lateral .nav-link i {
    font-size: 20px;
    margin-right: 15px;
    width: 25px;
    text-align: center;
}

.menu-lateral .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.menu-lateral .nav-link.active::before {
    width: 100%;
}

/* Logo no menu */
.menu-lateral .logo {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    padding: 0 10px;
}

/* ===== CONTEÚDO PRINCIPAL ===== */
.conteudo-principal {
    flex: 1;
    padding: 30px;
    background-color: var(--branco);
}

/* ===== SEÇÃO "SOBRE" ===== */
.sobre-container {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    margin-bottom: 40px;
}

.imagem-perfil {
    width: 250px;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--sombra);
    border: 2px solid var(--azul-claro);
}

.sobre-texto {
    flex: 1;
}

.sobre-container h2 {
    color: var(--azul-escuro);
    margin-top: 0;
    border-bottom: 2px solid var(--azul-claro);
    padding-bottom: 10px;
}

.sobre-container p {
    text-align: justify;
    text-indent: 30px;
    margin-bottom: 15px;
    line-height: 1.7;
}

/* ===== RODAPÉ ===== */
footer {
    background-color: var(--azul-escuro);
    color: var(--branco);
    text-align: center;
    padding: 25px;
    margin-top: auto;
}

footer p {
    margin: 0;
    font-size: 1rem;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .menu-lateral {
        width: 100%;
        padding: 15px;
    }
    
    .sobre-container {
        flex-direction: column;
    }
    
    .imagem-perfil {
        width: 100%;
        max-width: 300px;
        margin: 0 auto 20px;
    }
    
    header h1 {
        font-size: 2rem;
    }
}

/* Opcional: Menu ainda mais estreito em telas grandes */
@media (min-width: 1200px) {
    .menu-lateral {
        width: 200px;
    }
}