.param-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.param-modal {
    background: white;
    border-radius: 20px;
    padding: 48px;
    max-width: 650px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.4s ease-out;
    position: relative;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.param-modal h1 {
    font-size: 32px;
    margin-bottom: 24px;
    margin-top: 0;
    color: #1a202c;
    font-weight: 700;
}

.param-modal p {
    font-size: 17px;
    line-height: 1.4;
    color: #2d3748;
    margin-bottom: 24px;
}

.param-modal-company-name {
    color: #14B8A6;
    font-weight: 700;
}

.param-modal-section-title {
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 16px;
    font-size: 18px;
}

.param-modal-about-list {
    margin-left: 0;
    margin-bottom: 24px;
}

.param-modal-about-item {
    color: #4a5568;
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
    line-height: 1.6;
}

.param-modal-about-item:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #14B8A6;
    font-weight: bold;
}

.param-modal a {
    color: #2c5364;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.param-modal a:hover {
    color: #203a43;
    text-decoration: underline;
}

.param-modal-closing {
    margin-top: 32px;
    padding-top: 24px;
    margin-bottom: 0 !important;
    border-top: 2px solid #e2e8f0;
    font-style: italic;
    color: #4a5568;
}


.param-modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 28px;
    color: #a0aec0;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
}

.param-modal-close-btn:hover {
    background: #f7fafc;
    color: #4a5568;
}

@media (max-width: 768px) {
    .param-modal {
        padding: 32px 24px;
    }

    .param-modal h1 {
        font-size: 26px;
    }

    .param-modal p {
        font-size: 16px;
    }
}