/* Reset di base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Definizione del colore Rosso LabArtStudio */
    --primary-red: #D32F2F; 
    --hover-red: #B71C1C;
    --text-white: #ffffff;
}

body, html {
    height: 100%;
    font-family: 'Montserrat', sans-serif;
    overflow: hidden; /* Evita barre di scorrimento indesiderate */
}

/* Gestione dello Sfondo */
body {
    /* URL dell'immagine di sfondo (Tutor e studenti) */
    background-image: url('LArt.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-white);
    position: relative;
}

/* Overlay Scuro (Filtro rosso/nero sopra l'immagine) */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradiente che va dal nero al rosso molto scuro trasparente */
    /*background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(60, 10, 10, 0.7) 100%);*/
    z-index: 1;
}

/* Contenitore principale */
.container {
    position: relative;
    z-index: 2; /* Sta sopra l'overlay */
    max-width: 800px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.3); /* Sfondo semitrasparente per il box */
    backdrop-filter: blur(5px); /* Effetto sfocato moderno */
    border-radius: 15px;
    box-shadow: 0 15px 25px rgba(0,0,0,0.5);
}

/* Tipografia */
.logo {
    font-size: 3.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.divider {
    height: 4px;
    width: 80px;
    background-color: var(--primary-red);
    margin: 0 auto 30px auto;
    border-radius: 2px;
}

h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 20px;
}

p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #f0f0f0;
}

/* Pulsante (Call to Action) */
.cta-button {
    display: inline-block;
    padding: 15px 35px;
    background-color: var(--primary-red);
    color: var(--text-white);
    text-decoration: none;
    font-weight: bold;
    border-radius: 30px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.cta-button:hover {
    background-color: var(--hover-red);
    transform: translateY(-2px);
}

.small-text {
    font-size: 0.9rem;
    margin-top: 10px;
    opacity: 0.8;
}

.highlight {
    color: #ff6659; /* Un rosso più chiaro per il numero di telefono */
    font-weight: bold;
}

footer {
    margin-top: 40px;
    font-size: 0.8rem;
    opacity: 0.6;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 20px;
}

/* Adattamento per Cellulari (Responsive) */
@media (max-width: 768px) {
    .logo {
        font-size: 2.5rem;
    }
    .container {
        padding: 20px;
        margin: 20px;
    }
    h2 {
        font-size: 1.5rem;
    }
}