/* ------------------------------

   VARIABILI GLOBALI

------------------------------ */

:root {

    --colore-primario: #2c3e50;

    --colore-secondario: #34495e;

    --colore-accento: #1abc9c;

    --colore-testo: #2c3e50;

    --colore-bg: #ffffff;

    --colore-menu-bg: #ecf0f1;

    --spazio: 1rem;

    --font-base: "Arial", sans-serif;

}



/* ------------------------------

   RESET BASE

------------------------------ */

html, body {

    height: 100%;

    margin: 0;

    padding: 0;

}



body {

    display: flex;

    flex-direction: column;

    font-family: var(--font-base);

    overflow: hidden;

}



/* ------------------------------

   HEADER

------------------------------ */

header {

    background: var(--colore-primario);

    color: white;

    padding: 10px 20px;

    display: flex;

    justify-content: space-between;

    align-items: center;

}



.header-left {

    display: flex;

    align-items: center;

    gap: 15px;

}



.logo {

    width: 50px;

    height: 50px;

    object-fit: cover;

    border-radius: 6px;

}



/* ------------------------------

   MENU ORIZZONTALE

------------------------------ */

.menu {

    display: flex;

    gap: 15px;

    align-items: center;

}



.home-btn,

.menu-btn,

.dropbtn {

    background: var(--colore-secondario);

    color: white;

    padding: 10px 15px;

    border-radius: 4px;

    text-decoration: none;

    font-weight: bold;

    border: none;

    cursor: pointer;

}



.home-btn {

    background: var(--colore-accento);

}



.home-btn:hover {

    background: #16a085;

}



.menu-btn:hover,

.dropbtn:hover {

    background: #3d5a73;

}



/* Dropdown */

.dropdown {

    position: relative;

}



.dropdown-content {

    display: none;

    position: absolute;

    background: var(--colore-menu-bg);

    min-width: 160px;

    box-shadow: 0 8px 16px rgba(0,0,0,0.2);

    border-radius: 4px;

    z-index: 1000;

}



.dropdown-content a {

    display: block;

    padding: 10px 15px;

    color: var(--colore-testo);

    text-decoration: none;

}



.dropdown-content a:hover {

    background: #d0d7de;

}



.dropdown:hover .dropdown-content {

    display: block;

}



/* ------------------------------

   LAYOUT PRINCIPALE

------------------------------ */

.container {

    flex: 1;

    display: flex;

    gap: 20px;

    padding: 20px;

    overflow: hidden;

}



.colonna {

    background: var(--colore-bg);

    padding: 1px;

    border: 1px solid #bdc3c7;

    overflow-y: auto;

}



.colonna-sx { flex: 0 0 16%; }

.colonna-centro { flex: 0 0 62%; }

.colonna-dx { flex: 0 0 22%; }



/* ------------------------------

   MENU LATERALE

------------------------------ */

.menu-colonna {

    display: flex;

    flex-direction: column;

    gap: 8px;

}



.menu-colonna a {

    text-decoration: none;

    color: var(--colore-testo);

    font-weight: normal;

}



.menu-colonna a:hover {

    text-decoration: underline;

}



.titolo-sezione {

    color: red;

    font-weight: bold;

    font-style: italic;

    margin-bottom: 5px;

}



/* ------------------------------

   BLOCCHI CONTENUTO

------------------------------ */

.blocco {

    margin-bottom: 40px;

    overflow: hidden;

}



.blocco img {

    float: left;

    margin-right: 15px;

    width: 190px;

    height: auto;

}



.blocco h2 {

    color: red;

    font-size: 1.8rem;

    margin: 0;

}



.blocco p {

    text-align: justify;

    font-size: 1.1rem;

}



.blocco a {

    text-decoration: none;



}





/* ------------------------------

   FOOTER

------------------------------ */

footer {

    background: var(--colore-primario);

    color: white;

    text-align: center;

    padding: 15px;

}



/* ------------------------------

   RESPONSIVE

------------------------------ */

@media (max-width: 768px) {



    .menu { display: none; }



    header {

        flex-direction: column;

        text-align: center;

        gap: 10px;

    }



    .container {

        flex-direction: column;

    }



    .colonna-sx,

    .colonna-dx {

        display: none;

    }



    .colonna-centro {

        flex: 1 0 auto;

        width: 100%;

    }



    .blocco img {

        float: none;

        display: block;

        margin: 0 auto 15px;

        width: 70%;

    }

}