/* ==========================================================================
   NETSPACE COURSE STYLER - COMPLETE OPTIMIZED UI/UX & COLLAPSIBLE SYSTEM
   ========================================================================== */

:root {
    --ncs-red: #ed1c24;
    --ncs-red-dark: #c41219;
    --ncs-blue-gray: #ecf1f8;
    --ncs-border: #e2e8f0;
    --ncs-text: #2d3748;
}

/* 1. KHUNG ĐỌC NỘI DUNG CHÍNH (THEME FONT) */
.courseFullText,
.courseText,
.et_pb_text_inner:has(.courseText) {
    font-family: inherit !important;
    font-size: 15px !important;
    line-height: 1.75 !important;
    color: var(--ncs-text) !important;
    max-width: 1140px !important;
    margin: 20px auto !important;
    padding: 35px !important;
    background: #ffffff !important;
    border-radius: 16px !important;
    box-shadow: 0 10px 35px rgba(37, 17, 17, 0.06) !important;
    border: 1px solid #efd3ca !important;
    box-sizing: border-box !important;
}

.courseText *, 
.courseText *:before, 
.courseText *:after {
    box-sizing: border-box !important;
}

/* 2. TYPOGRAPHY */
.courseText h1 {
    font-family: inherit !important;
    font-size: 24px !important;
    font-weight: 800 !important;
    line-height: 1.4 !important;
    text-transform: uppercase !important;
    text-align: center !important;
    color: var(--ncs-red) !important;
    margin: 0 0 25px 0 !important;
    padding: 10px 15px 20px 15px !important;
    border-bottom: 2px solid var(--ncs-blue-gray) !important;
    letter-spacing: -0.02em !important;
}

.courseText h2 {
    font-family: inherit !important;
    display: block !important;
    padding: 10px 18px !important;
    font-size: 16px !important;
    font-weight: 800 !important;
    line-height: 1.5 !important;
    text-align: left !important;
    text-transform: uppercase !important;
    color: var(--ncs-red) !important;
    background: var(--ncs-blue-gray) !important;
    border-radius: 6px !important;
    margin: 25px 0 16px 0 !important;
    border-left: 5px solid var(--ncs-red) !important;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02) !important;
}

.courseText h3 {
    font-family: inherit !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    color: #1a202c !important;
    margin: 18px 0 10px 0 !important;
}

.courseText p {
    font-family: inherit !important;
    color: var(--ncs-text) !important;
    font-size: 15px !important;
    line-height: 1.75 !important;
    margin-bottom: 16px !important;
    text-align: justify !important;
}

.courseText blockquote {
    background: #fdf8f8 !important;
    border-left: 5px solid var(--ncs-red) !important;
    margin: 18px 0 25px 0 !important;
    padding: 18px 24px !important;
    border-radius: 0 10px 10px 0 !important;
    box-shadow: 0 3px 12px rgba(237, 28, 36, 0.05) !important;
}

.courseText blockquote p {
    font-size: 15px !important;
    line-height: 1.75 !important;
    color: #4a5568 !important;
    margin: 0 !important;
    font-style: italic !important;
}

/* 3. ĐIỀU CHỈNH CHIỀU CAO & CĂN GIỮA VIDEO YOUTUBE NHÚNG */
.courseText iframe,
.courseText .ns-youtube-iframe,
.courseText iframe[src*="youtube.com"],
.courseText iframe[src*="youtu.be"] {
    display: block !important;
    max-width: 820px !important;
    width: 100% !important;
    aspect-ratio: 16 / 9 !important;
    height: auto !important;
    margin: 25px auto !important;
    border-radius: 14px !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
    border: none !important;
}

/* 4. CÁC MỤC BÀI HỌC (SESSION ITEM ACCORDION) */
.courseText .session-item,
.session-item {
    width: 100% !important;
    background: #ffffff !important;
    border: 1px solid var(--ncs-border) !important;
    border-radius: 10px !important;
    margin-bottom: 16px !important;
    overflow: hidden !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03) !important;
    transition: all 0.25s ease !important;
}

.courseText .session-item:hover {
    border-color: #cbd5e1 !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.07) !important;
}

.courseText .session-header,
.session-header {
    background: #f8fafc !important;
    padding: 14px 20px !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    color: var(--ncs-red) !important;
    border-bottom: 1px solid var(--ncs-border) !important;
    cursor: pointer !important;
    display: flex !important;
    justify-content: flex-start !important;
    align-items: center !important;
    transition: background 0.2s !important;
    user-select: none !important;
}

.courseText .session-header:hover {
    background: var(--ncs-blue-gray) !important;
}

.courseText .btn-session {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 26px !important;
    height: 26px !important;
    background: var(--ncs-red) !important;
    color: #ffffff !important;
    border-radius: 50% !important;
    font-size: 18px !important;
    font-weight: bold !important;
    line-height: 1 !important;
    margin-right: 12px !important;
    flex-shrink: 0 !important;
    transition: transform 0.2s !important;
}

.courseText .session-title-text {
    flex-grow: 1 !important;
}

.courseText .session-body,
.session-body {
    padding: 22px 25px !important;
    background: #ffffff !important;
}

/* 5. TỐI ƯU UI/UX MỤC CÂU HỎI THƯỜNG GẶP (FAQ ACCORDION) */
.courseText .question-item {
    background: #ffffff !important;
    border: 1px solid var(--ncs-border) !important;
    border-radius: 10px !important;
    margin-bottom: 12px !important;
    overflow: hidden !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02) !important;
    transition: border-color 0.2s, box-shadow 0.2s !important;
}

.courseText .question-item:hover {
    border-color: #cbd5e1 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
}

.courseText .faq-item {
    padding: 14px 20px !important;
    cursor: pointer !important;
    background: #f8fafc !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    transition: background 0.2s !important;
    user-select: none !important;
}

.courseText .faq-item:hover {
    background: var(--ncs-blue-gray) !important;
}

.courseText .faq-item a,
.courseText .faq-item .faq-title {
    color: #1e293b !important;
    font-weight: 700 !important;
    font-size: 15px !important;
    text-decoration: none !important;
    flex-grow: 1 !important;
}

.courseText .faq-toggle-icon {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 24px !important;
    height: 24px !important;
    border-radius: 50% !important;
    background: #fee2e2 !important;
    color: var(--ncs-red) !important;
    font-weight: bold !important;
    font-size: 16px !important;
    line-height: 1 !important;
    margin-left: 12px !important;
    flex-shrink: 0 !important;
    transition: all 0.2s ease !important;
}

.courseText .faq-item.active .faq-toggle-icon {
    background: var(--ncs-red) !important;
    color: #ffffff !important;
}

.courseText .faq-text {
    padding: 18px 22px !important;
    background: #ffffff !important;
    border-top: 1px solid #f1f5f9 !important;
    color: #4a5568 !important;
    font-size: 14.5px !important;
    line-height: 1.75 !important;
}

.courseText .faq-text p {
    margin-bottom: 10px !important;
}

/* 6. LƯỚI ẢNH MÓN ĂN CHUẨN 3X3 */
.courseText .photos-widget {
    margin: 25px 0 !important;
    background: #f8fafc !important;
    border-radius: 12px !important;
    padding: 20px !important;
    border: 1px solid var(--ncs-border) !important;
}

.courseText .widget-header {
    font-size: 16px !important;
    font-weight: 700 !important;
    color: var(--ncs-red) !important;
    margin-bottom: 15px !important;
    padding-bottom: 8px !important;
    border-bottom: 2px solid #e2e8f0 !important;
}

.courseText .popup-gallery .row {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 15px !important;
    margin: 0 !important;
}

.courseText .popup-gallery .col-sm-4,
.courseText .popup-gallery .col-xs-6 {
    flex: none !important;
    max-width: 100% !important;
    padding: 0 !important;
}

.courseText .popup-gallery .figure,
.courseText .popup-gallery .image {
    width: 100% !important;
    height: 100% !important;
    overflow: hidden !important;
    border-radius: 10px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06) !important;
}

.courseText .popup-gallery img {
    width: 100% !important;
    height: 220px !important;
    object-fit: cover !important;
    border-radius: 10px !important;
    display: block !important;
    transition: transform 0.35s ease, filter 0.35s ease !important;
}

.courseText .popup-gallery img:hover {
    transform: scale(1.05) !important;
    filter: brightness(1.03) !important;
}

/* 7. HỆ THỐNG GRID CHUẨN BOOTSTRAP / RESPONSIVE */
.courseText .row {
    display: flex !important;
    flex-wrap: wrap !important;
    margin-left: -10px !important;
    margin-right: -10px !important;
    width: auto !important;
}

.courseText .col-sm-4, 
.courseText .col-md-4 {
    flex: 0 0 33.333333% !important;
    max-width: 33.333333% !important;
    padding: 10px !important;
    box-sizing: border-box !important;
}

.courseText .col-sm-6, 
.courseText .col-md-6 {
    flex: 0 0 50% !important;
    max-width: 50% !important;
    padding: 10px !important;
    box-sizing: border-box !important;
}

.courseText .col-sm-3, 
.courseText .col-md-3 {
    flex: 0 0 25% !important;
    max-width: 25% !important;
    padding: 10px !important;
    box-sizing: border-box !important;
}

.courseText .col-sm-7 {
    flex: 0 0 58.333333% !important;
    max-width: 58.333333% !important;
    padding: 10px !important;
    box-sizing: border-box !important;
}

.courseText .col-sm-5 {
    flex: 0 0 41.666667% !important;
    max-width: 41.666667% !important;
    padding: 10px !important;
    box-sizing: border-box !important;
}

.courseText .col-xs-12 {
    width: 100% !important;
}

/* 8. LƯỚI KHÓA HỌC KHÁC */
.courseText .course-list {
    margin-top: 10px !important;
}

.courseText .course-item-ext {
    background: #ffffff !important;
    border: 1px solid var(--ncs-border) !important;
    border-radius: 12px !important;
    overflow: hidden !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04) !important;
    transition: transform 0.25s, box-shadow 0.25s !important;
    height: 100% !important;
    text-align: center !important;
}

.courseText .course-item-ext:hover {
    transform: translateY(-4px) !important;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08) !important;
}

.courseText .course-item-ext img {
    width: 100% !important;
    height: 170px !important;
    object-fit: cover !important;
    display: block !important;
}

.courseText .course-item-ext .title {
    padding: 12px 15px !important;
    font-weight: 700 !important;
    font-size: 15px !important;
}

.courseText .course-item-ext .title a {
    color: var(--ncs-text) !important;
    text-decoration: none !important;
}

.courseText .course-item-ext .title a:hover {
    color: var(--ncs-red) !important;
}

/* 9. KHỐI LIÊN HỆ */
#lien-he-de-duoc-tu-van .row {
    background: #fdf8f8 !important;
    border: 1px solid #fee2e2 !important;
    border-radius: 12px !important;
    padding: 20px !important;
    margin: 0 !important;
}

#lien-he-de-duoc-tu-van strong {
    color: var(--ncs-red) !important;
    font-size: 16px !important;
}

/* 10. BẢNG BIỂU HỌC PHÍ */
.courseText table {
    width: 100% !important;
    border-collapse: collapse !important;
    margin: 20px 0 !important;
    background: #ffffff !important;
    border-radius: 8px !important;
    overflow: hidden !important;
    border: 1px solid var(--ncs-border) !important;
}

.courseText table th {
    background: var(--ncs-red) !important;
    color: #ffffff !important;
    padding: 12px 16px !important;
    font-weight: 700 !important;
    text-align: center !important;
    font-size: 14px !important;
}

.courseText table td {
    padding: 12px 16px !important;
    border: 1px solid var(--ncs-border) !important;
    font-size: 14px !important;
    color: #4a5568 !important;
}

.courseText table tr:nth-child(even) td {
    background: #f8fafc !important;
}

/* 11. RESPONSIVE MOBILE / TABLET */
@media (max-width: 900px) {
    .courseText {
        padding: 24px 18px !important;
        margin: 10px auto !important;
        border-radius: 12px !important;
    }
    .courseText .popup-gallery .row {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
    .courseText .col-sm-4, 
    .courseText .col-md-4,
    .courseText .col-sm-7,
    .courseText .col-sm-5 {
        flex: 0 0 100% !important;
        max-width: 100% !important;
    }
}

@media (max-width: 540px) {
    .courseText .popup-gallery .row {
        grid-template-columns: 1fr !important;
    }
    .courseText h1 {
        font-size: 20px !important;
    }
}