body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #f9f9f9;
}

.open-modal-btn {
    margin: 40px auto;
    display: block;
    padding: 12px 24px;
    font-size: 16px;
    background-color: #000;
    color: #fff;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: 0.3s;
}

.open-modal-btn:hover {
    background-color: #333;
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: flex-end;
    z-index: 999;
    visibility: hidden;
    opacity: 0;
    transition: 0.3s ease;
    padding: 0 15px;
}

.overlay.active {
    visibility: visible;
    opacity: 1;

}

.modal {
    background: #fff;
    border-radius: 24px;
    max-width: 500px;
    width: 90%;
    padding: 24px;
    text-align: center;
    position: relative;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.3s ease;
    margin-bottom: 40px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.modal p {
    font-size: 14px;
    color: #444;
    margin-bottom: 24px;
    line-height: 1.5;
}

.modal-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn {
    padding: 12px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.25s ease;
}

.btn-login {
    background: #000;
    color: #fff;
    border: none;
}

.btn-login:hover {
    background: #333;
}

.btn-register {
    background: #fff;
    border: 1px solid #ccc;
    color: #000;
}

.btn-register:hover {
    background: #f2f2f2;
}

.modal a {
    display: inline-block;
    margin-top: 8px;
    font-size: 13px;
    color: #555;
    text-decoration: none;
    transition: color 0.25s ease;
}

.modal a:hover {
    color: #000;
    text-decoration: underline;
}

.close-modal {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 20px;
    background: none;
    border: none;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: #000;
}

@media (min-width: 600px) {
    .modal h2 {
        font-size: 22px;
    }

    .modal p {
        font-size: 15px;
    }

    .btn {
        font-size: 16px;
    }



}