.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 14, 23, 0.9);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.overlay-content {
    background-color: var(--surface-color);
    padding: 20px;
    border-radius: 10px;
    max-width: 80%;
    max-height: 80%;
    overflow-y: auto;
    box-shadow: 0 0 20px var(--primary-color);
    border: 1px solid var(--primary-color);
}

.overlay h2 {
    color: var(--accent-color);
    margin-bottom: 15px;
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 5px var(--accent-color);
}

#future-news {
    margin-bottom: 20px;
}

#future-news p {
    margin-bottom: 10px;
    padding: 10px;
    background-color: rgba(26, 31, 46, 0.8); /* Légèrement plus clair que --surface-color */
    border-radius: 5px;
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 5px var(--primary-color);
    transition: all 0.3s ease;
}

#future-news p:hover {
    background-color: rgba(32, 178, 170, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--primary-color);
}

#close-newspaper {
    display: block;
    margin: 20px auto 0;
    padding: 10px 20px;
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#close-newspaper:hover {
    background-color: var(--primary-color);
    color: var(--background-color);
    box-shadow: 0 0 15px var(--primary-color);
}

/* Animation pour l'apparition de l'overlay */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.overlay.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.investment-content {
    max-width: 800px;
    width: 90%;
}

#investment-plans {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.investment-plan {
    background-color: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    padding: 20px;
    width: calc(33% - 20px);
    min-width: 200px;
    box-shadow: 0 0 10px rgba(32, 178, 170, 0.3);
    transition: all 0.3s ease;
}

.investment-plan:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(32, 178, 170, 0.5);
}

.investment-plan h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
    text-align: center;
    font-size: 1.2em;
}

.plan-details {
    margin-bottom: 20px;
}

.plan-details p {
    margin-bottom: 10px;
    font-size: 0.9em;
}

.invest-button {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: var(--primary-color);
    color: var(--background-color);
    border: none;
    border-radius: 5px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s ease;
}

.invest-button:hover {
    background-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color);
}

#close-investment {
    display: block;
    margin: 20px auto 0;
    padding: 10px 20px;
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#close-investment:hover {
    background-color: var(--primary-color);
    color: var(--background-color);
    box-shadow: 0 0 15px var(--primary-color);
}

#start-overlay .overlay-content,
#victory-overlay .overlay-content {
    text-align: center;
}

#start-overlay ul {
    text-align: left;
    margin: 20px auto;
    max-width: 400px;
}

#start-game,
#restart-game {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: var(--background-color);
    border: none;
    border-radius: 5px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s ease;
}

#start-game:hover,
#restart-game:hover {
    background-color: var(--primary-color);
    box-shadow: 0 0 15px var(--primary-color);
}