.features-section {
    position: relative;
    z-index: 1;
    background-color: #f8fafc;
    padding: 3rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-item {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 1rem;
    padding: 1.75rem 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1/1;
    min-height: 160px;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-item:hover {
    border-color: #e5e7eb;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.feature-item:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: #eef2ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon {
    background: #3b82f6;
    color: white;
}

.feature-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: #6b7280;
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.feature-title {
    font-size: 1rem;
    color: #1f2937;
    line-height: 1.4;
    font-weight: 500;
    word-break: keep-all;
    margin: 0;
}

.feature-description {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Modal styles remain the same */
#featureModal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
}

#featureModal.show {
    display: flex;
    opacity: 1;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    padding: 2rem;
    width: 90%;
    max-width: 800px;
    border-radius: 1rem;
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    margin: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

#featureModal.show .modal-content {
    transform: translateY(0);
}

.close-button {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #4b5563;
    width: 32px;
    height: 32px;
    border-radius: 16px;
    background: #f3f4f6;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 1;
}

@media (max-width: 1024px) {
    .features-grid {
        gap: 1rem;
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-item {
        min-height: 140px;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        padding: 1rem;
    }

    .feature-item {
        padding: 1.25rem 1rem;
    }
}

/* 로딩 화면 */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
    justify-content: center;
    align-items: center;
}

.overlay.active {
    display: flex;
}

.loading-message {
    color: white;
    font-size: 18px;
}