.about-section {
    padding: 100px 0;
    background: #fff;
}

.about-row {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-main-img {
    width: 100%;
    border-radius: 20px;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: #99AA38;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulseBtn 2s infinite;
    cursor: pointer;
}

.play-btn svg {
    width: 25px;
    margin-left: 4px;
}

@keyframes pulseBtn {
    0% { box-shadow: 0 0 0 0 rgba(153,170,56,0.4); }
    70% { box-shadow: 0 0 0 25px rgba(153,170,56,0); }
    100% { box-shadow: 0 0 0 0 rgba(153,170,56,0); }
}

.about-content {
    flex: 1;
}

.highlight {
    color: #99AA38;
    position: relative;
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 25px 0;
}

.about-list li {
    padding: 10px 0;
    font-size: 16px;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-list li i {
    color: #99AA38;
    font-size: 20px;
}

.btn-enroll {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #99AA38;
    color: #0A210F;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-enroll:hover {
    background: transparent;
    color: #99AA38;
    border-color: #99AA38;
    transform: translateY(-3px);
}

@media (max-width: 991.98px) {
    .about-section { padding: 70px 0; }
    .about-row { flex-direction: column; gap: 40px; }
    .main-title { font-size: 32px; }
}

@media (max-width: 767.98px) {
    .about-section { padding: 50px 0; }
    .main-title { font-size: 28px; }
    .play-btn { width: 60px; height: 60px; }
    .play-btn svg { width: 20px; }
}

@media (max-width: 575.98px) {
    .main-title { font-size: 24px; }
}

.video-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-container {
    position: relative;
    width: 90%;
    max-width: 900px;
    aspect-ratio: 16/9;
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

.close-video {
    position: absolute;
    top: -40px;
    right: 0;
    color: #fff;
    font-size: 35px;
    cursor: pointer;
    transition: color 0.3s;
}

.close-video:hover { color: #99AA38; }