.training-center {
    background-color: #F8FAFC;
}

.text-primary {
    color: #0F172A !important;
}

.text-accent {
    color: #F59E0B !important;
}

.bg-white {
    background-color: #FFFFFF;
}

.section-padding {
    padding: 100px 0;
}



/* NÚT BẤM */
.btn-rounded-custom {
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
}

.btn-solid-accent {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: #fff;
    box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

.btn-solid-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(245, 158, 11, 0.4);
    color: #fff;
    outline: none;
}

.btn-outline-dark {
    background: transparent;
    color: #0F172A;
    border: 2px solid #E2E8F0;
}

.btn-outline-dark:hover {
    border-color: #0F172A;
    color: #0F172A;
    background: #F8FAFC;
    outline: none;
}

/* HERO SECTION */
.hero {
    position: relative;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.7) 100%), url('https://images.unsplash.com/photo-1469854523086-cc02fe5d8800?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    padding: 160px 0 180px 0;
    color: white;
    overflow: hidden;
}

.badge-modern {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 25px;
    backdrop-filter: blur(5px);
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 25px;
    letter-spacing: -1px;
}

.hero-desc {
    font-size: 18px;
    color: #CBD5E1;
    line-height: 1.7;
    margin-bottom: 40px;
    font-weight: 400;
    max-width: 90%;
}

/* VIDEO WRAPPER & PLAY BUTTON */
.video-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    border: 6px solid rgba(255, 255, 255, 0.1);
    transform: translateY(0);
    transition: 0.5s ease-in-out;
    cursor: pointer;
}

.video-wrapper:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.3);
}

.video-wrapper img {
    width: 100%;
    display: block;
    transition: 0.5s;
}

.video-wrapper:hover img {
    transform: scale(1.05);
}

.play-btn-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: #EF4444;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    padding-left: 6px;
    cursor: pointer;
    z-index: 2;
    transition: 0.3s;
}

.play-btn-pulse:hover {
    background: #DC2626;
    transform: translate(-50%, -50%) scale(1.1);
}

.play-btn-pulse::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.4);
    animation: pulse 2s infinite;
    z-index: -1;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(1.6);
        opacity: 0;
    }
}

/* MODAL CUSTOMIZATION */
.modal-backdrop.in {
    opacity: 0.85;
}

/* Làm nền tối hơn khi mở video */
.modal-content {
    background: transparent;
    border: none;
    box-shadow: none;
}

.modal-header {
    border: none;
    padding: 0 0 15px 0;
}

.modal-header .close {
    color: #fff;
    opacity: 1;
    text-shadow: none;
    font-size: 36px;
    font-weight: 300;
    outline: none;
    transition: 0.3s;
}

.modal-header .close:hover {
    color: #EF4444;
    transform: scale(1.1);
}

.embed-responsive {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: #000;
}

/* OVERLAPPING FEATURES (Kỹ năng cốt lõi) */
.overlap-section {
    margin-top: -80px;
    position: relative;
    z-index: 10;
    padding-bottom: 60px;
}

.overlap-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
    text-align: center;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.02);
    transition: 0.4s;
}

.overlap-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.12);
}

.icon-box {
    width: 80px;
    height: 80px;
    border-radius: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 25px;
    transform: rotate(-5deg);
    transition: 0.3s;
}

.overlap-card:hover .icon-box {
    transform: rotate(0deg) scale(1.1);
}

.bg-blue-soft {
    background: linear-gradient(135deg, #E0F2FE, #BAE6FD);
    color: #0284C7;
}

.bg-orange-soft {
    background: linear-gradient(135deg, #FFEDD5, #FED7AA);
    color: #EA580C;
}

.bg-green-soft {
    background: linear-gradient(135deg, #DCFCE7, #BBF7D0);
    color: #16A34A;
}

.overlap-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #0F172A;
    margin-bottom: 15px;
}

.overlap-card p {
    font-size: 15px;
    color: #64748B;
    line-height: 1.7;
    margin-bottom: 0;
}

/* SECTION HEADERS */
.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #0F172A;
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 16px;
    color: #64748B;
    max-width: 600px;
    margin: 0 auto 50px;
    line-height: 1.7;
}

/* BENEFITS GRID CARDS */
.benefit-grid-card {
    background: #fff;
    padding: 35px 30px;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    transition: 0.3s;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.01);
    height: 100%;
}

.benefit-grid-card:hover {
    border-color: #F59E0B;
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.08);
    transform: translateY(-5px);
}

.benefit-icon {
    width: 65px;
    height: 65px;
    background: #FFFBEB;
    color: #F59E0B;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    flex-shrink: 0;
    margin-right: 20px;
    transition: 0.3s;
}

.benefit-grid-card:hover .benefit-icon {
    background: #F59E0B;
    color: #fff;
}

.benefit-content h4 {
    font-size: 18px;
    font-weight: 700;
    color: #0F172A;
    margin: 0 0 12px 0;
}

.benefit-content p {
    color: #64748B;
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
}

/* FINAL CTA BANNER */
.cta-banner {
    background: linear-gradient(135deg, #0F172A, #1E3A8A);
    border-radius: 30px;
    padding: 70px 40px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
    margin: 60px 0;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.3);
}

.cta-banner::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 50%;
    height: 200%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    transform: rotate(30deg);
    z-index: 1;
    pointer-events: none;
}

.cta-banner h2 {
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.cta-banner p {
    font-size: 18px;
    color: #CBD5E1;
    margin-bottom: 40px;
    font-weight: 300;
    position: relative;
    z-index: 2;
}


/* FLEX UTILITIES */
.flex-row {
    display: flex;
    flex-wrap: wrap;
}

.flex-col {
    display: flex;
    flex-direction: column;
}

@media (max-width: 767px) {
    .hero {
        padding: 120px 0 80px;
        text-align: center;
    }

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

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .video-wrapper {
        margin-top: 40px;
    }

    .overlap-section {
        margin-top: 40px;
        padding-bottom: 20px;
    }

    .flex-row {
        display: block;
    }

    .section-title {
        font-size: 28px;
    }

    .benefit-grid-card {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .benefit-icon {
        margin-bottom: 20px;
    }

    .cta-banner {
        padding: 50px 20px;
        border-radius: 20px;
    }

    .cta-banner h2 {
        font-size: 28px;
    }
}