/* --- Impostazioni Generali --- */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

/* --- Stili per la Pagina delle Campagne (Schede) --- */

.search-header {
    margin-bottom: 30px;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: #ffffff;
    border: 1px solid #ddd;
    border-radius: 50px;
    padding: 8px 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.search-box svg {
    color: #8e8e8e;
    margin-right: 10px;
    flex-shrink: 0;
}

.search-box input {
    border: none;
    outline: none;
    width: 100%;
    font-size: 16px;
    background-color: transparent;
}

.related-topics h2 {
    font-size: 1.5em;
    color: #1c1e21;
    margin-bottom: 20px;
}

.topics-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(2, 1fr); /* 2 colonne su mobile come da richiesta iniziale */
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.topic-card {
    background-color: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease-in-out;
    display: flex;
    flex-direction: column;
    height: 100%; /* Assicura che le card nella stessa riga abbiano la stessa altezza */
}

.topic-card:hover {
    transform: translateY(-5px);
}

.topic-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.card-content {
    padding: 16px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-content h3 {
    margin: 0 0 10px 0;
    font-size: 1.1em;
    color: #1c1e21;
}

.card-meta {
    display: flex;
    align-items: center;
    font-size: 0.9em;
    color: #65676b;
    margin-top: auto;
}

.card-meta svg {
    margin-right: 6px;
}

/* --- Stili per la pagina di ricerca (Homepage senza parametro) --- */
.search-engine-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    flex-direction: column;
    padding: 20px;
}

.search-engine-container {
    width: 100%;
    max-width: 600px;
    text-align: center;
}

.search-engine-logo {
    font-size: 3em;
    font-weight: bold;
    color: #4285F4;
    margin-bottom: 30px;
}
.search-engine-logo span:nth-child(2) { color: #DB4437; }
.search-engine-logo span:nth-child(3) { color: #F4B400; }
.search-engine-logo span:nth-child(4) { color: #0F9D58; }

.search-engine-form .search-box {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 12px 20px;
}

.search-engine-form input[type="search"] {
    font-size: 18px;
}

.search-engine-form button {
    margin-top: 20px;
    padding: 10px 25px;
    font-size: 16px;
    border: 1px solid #f0f0f0;
    background-color: #f8f8f8;
    cursor: pointer;
    border-radius: 4px;
}
.search-engine-form button:hover {
    border-color: #ddd;
    box-shadow: 0 1px 1px rgba(0,0,0,0.1);
}

/* --- Media Query per schermi più grandi (Tablet/Desktop) --- */
@media (min-width: 768px) {
    .topics-grid {
        /* Su schermi larghi 768px o più, passiamo a 3 colonne */
        grid-template-columns: repeat(3, 1fr);
    }
}