/* About Section - Tinh Hoa Giáo Trình Q Academy */
.about-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #F9F9F5 0%, #F5F5F0 100%);
}

.about-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

/* Image Side */
.about-image {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.about-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 4/3;
    object-fit: cover;
}

/* Text Side */
.about-text {
    max-width: 560px;
}

.about-title {
    font-size: 40px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    line-height: 1.3;
    margin-bottom: 24px;
}

.about-title .highlight {
    color: #8B9A5B;
}

.about-description {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-description:last-of-type {
    margin-bottom: 40px;
}

/* Stats Grid */
.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-card {
    background-color: #fff;
    border: 1px solid #E8E8E8;
    border-radius: 16px;
    padding: 24px 20px;
    text-align: center;
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal),
                border-color var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: #8B9A5B;
}

.stat-number {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: #8B9A5B;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #666;
    line-height: 1.4;
}

/* Responsive - Large Desktop */
@media (max-width: 1200px) {
    .about-section {
        padding: 80px 0;
    }

    .about-content {
        gap: 60px;
    }

    .about-title {
        font-size: 36px;
    }

    .stat-number {
        font-size: 32px;
    }
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-image {
        max-width: 600px;
        margin: 0 auto;
    }

    .about-text {
        max-width: 100%;
        text-align: center;
    }

    .about-stats {
        max-width: 500px;
        margin: 0 auto;
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .about-section {
        padding: 60px 0;
    }

    .about-container {
        padding: 0 20px;
    }

    .about-content {
        gap: 40px;
    }

    .about-title {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .about-description {
        font-size: 15px;
    }

    .about-description:last-of-type {
        margin-bottom: 32px;
    }

    .about-stats {
        gap: 12px;
    }

    .stat-card {
        padding: 20px 12px;
        border-radius: 12px;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-label {
        font-size: 12px;
    }
}

/* Responsive - Small Mobile */
@media (max-width: 480px) {
    .about-section {
        padding: 48px 0;
    }

    .about-container {
        padding: 0 16px;
    }

    .about-title {
        font-size: 24px;
    }

    .about-description {
        font-size: 14px;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 12px;
        max-width: 280px;
    }

    .stat-card {
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .stat-number {
        font-size: 32px;
    }

    .stat-label {
        font-size: 13px;
    }
}