.page-game-bai-tien-len-mien-nam {
    color: #FFF1E8; /* Text Main color on Background #140C0C */
    background: #140C0C; /* Background color */
    line-height: 1.6;
    font-family: Arial, sans-serif;
}

.page-game-bai-tien-len-mien-nam a {
    color: #F3C54D; /* Gold color for links */
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-game-bai-tien-len-mien-nam a:hover {
    color: #FFB04A;
}

.page-game-bai-tien-len-mien-nam__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    padding-bottom: 40px;
    overflow: hidden;
}

.page-game-bai-tien-len-mien-nam__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.page-game-bai-tien-len-mien-nam__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.page-game-bai-tien-len-mien-nam__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 40px 20px;
    background: rgba(42, 18, 18, 0.85); /* Card B G with opacity */
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
    margin-top: 80px; /* Adjust based on hero image size */
    color: #FFF1E8; /* Text Main */
}

.page-game-bai-tien-len-mien-nam__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: #F3C54D; /* Gold color */
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.page-game-bai-tien-len-mien-nam__description {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    margin-bottom: 30px;
    opacity: 0.9;
}

.page-game-bai-tien-len-mien-nam__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-game-bai-tien-len-mien-nam__btn-primary,
.page-game-bai-tien-len-mien-nam__btn-secondary {
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-game-bai-tien-len-mien-nam__btn-primary {
    background: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(255, 176, 74, 0.4);
}

.page-game-bai-tien-len-mien-nam__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 176, 74, 0.6);
}

.page-game-bai-tien-len-mien-nam__btn-secondary {
    background: #2A1212; /* Card B G */
    color: #F3C54D; /* Gold */
    border: 2px solid #F3C54D; /* Gold border */
}

.page-game-bai-tien-len-mien-nam__btn-secondary:hover {
    background: #3A2222;
    color: #FFB04A;
    border-color: #FFB04A;
}

.page-game-bai-tien-len-mien-nam__section {
    padding: 60px 0;
    width: 100%;
    box-sizing: border-box;
}

.page-game-bai-tien-len-mien-nam__dark-bg {
    background: #140C0C;
    color: #FFF1E8;
}

.page-game-bai-tien-len-mien-nam__card-bg {
    background: #2A1212;
    color: #FFF1E8;
}

.page-game-bai-tien-len-mien-nam__light-bg {
    background: #FFF1E8;
    color: #333333; /* Dark text for light background */
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.page-game-bai-tien-len-mien-nam__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-game-bai-tien-len-mien-nam__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    color: #F3C54D; /* Gold color */
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.page-game-bai-tien-len-mien-nam__sub-title {
    font-size: clamp(1.4rem, 2.5vw, 2.2rem);
    color: #FFB04A; /* Orange from button gradient */
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: 600;
}

.page-game-bai-tien-len-mien-nam__article-body {
    max-width: 100%;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.page-game-bai-tien-len-mien-nam__article-body p {
    margin-bottom: 15px;
}

.page-game-bai-tien-len-mien-nam__list,
.page-game-bai-tien-len-mien-nam__ordered-list {
    list-style-type: disc;
    margin-left: 25px;
    margin-bottom: 20px;
    padding: 0;
}

.page-game-bai-tien-len-mien-nam__ordered-list {
    list-style-type: decimal;
}

.page-game-bai-tien-len-mien-nam__list li,
.page-game-bai-tien-len-mien-nam__ordered-list li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.page-game-bai-tien-len-mien-nam__article-figure {
    margin: 30px auto;
    text-align: center;
    max-width: 800px;
    width: 100%;
}

.page-game-bai-tien-len-mien-nam__article-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
}

.page-game-bai-tien-len-mien-nam__article-figure figcaption {
    margin-top: 15px;
    font-style: italic;
    color: #F3C54D;
    font-size: 0.95rem;
}

.page-game-bai-tien-len-mien-nam__button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

/* FAQ Section */
.page-game-bai-tien-len-mien-nam__faq-section {
    padding: 60px 0;
}

.page-game-bai-tien-len-mien-nam__faq-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

details.page-game-bai-tien-len-mien-nam__faq-item {
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #6A1E1E; /* Border color */
    overflow: hidden;
    background: #2A1212; /* Card B G */
    color: #FFF1E8; /* Text Main */
}

details.page-game-bai-tien-len-mien-nam__faq-item summary.page-game-bai-tien-len-mien-nam__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background-color 0.3s ease;
}

details.page-game-bai-tien-len-mien-nam__faq-item summary.page-game-bai-tien-len-mien-nam__faq-question::-webkit-details-marker {
    display: none;
}

details.page-game-bai-tien-len-mien-nam__faq-item summary.page-game-bai-tien-len-mien-nam__faq-question:hover {
    background: rgba(110, 30, 30, 0.5); /* Slightly lighter border color for hover */
}

.page-game-bai-tien-len-mien-nam__faq-qtext {
    flex: 1;
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.5;
    text-align: left;
    color: #F3C54D; /* Gold */
}

.page-game-bai-tien-len-mien-nam__faq-toggle {
    font-size: 28px;
    font-weight: bold;
    color: #F3C54D; /* Gold */
    flex-shrink: 0;
    margin-left: 20px;
    width: 30px;
    text-align: center;
}

details.page-game-bai-tien-len-mien-nam__faq-item .page-game-bai-tien-len-mien-nam__faq-answer {
    padding: 0 25px 20px;
    background: #140C0C; /* Background color */
    border-radius: 0 0 8px 8px;
    color: #FFF1E8; /* Text Main */
}

.page-game-bai-tien-len-mien-nam__faq-answer p {
    margin-top: 10px;
    margin-bottom: 0;
    font-size: 1rem;
}

/* Responsive styles */
@media (max-width: 1024px) {
    .page-game-bai-tien-len-mien-nam__hero-content {
        max-width: 700px;
        padding: 30px 15px;
    }
    .page-game-bai-tien-len-mien-nam__main-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }
    .page-game-bai-tien-len-mien-nam__description {
        font-size: clamp(0.95rem, 1.7vw, 1.1rem);
    }
    .page-game-bai-tien-len-mien-nam__btn-primary,
    .page-game-bai-tien-len-mien-nam__btn-secondary {
        padding: 12px 25px;
        font-size: 1rem;
    }
    .page-game-bai-tien-len-mien-nam__section-title {
        font-size: clamp(1.6rem, 3.5vw, 2.5rem);
    }
    .page-game-bai-tien-len-mien-nam__sub-title {
        font-size: clamp(1.3rem, 2.8vw, 2rem);
    }
    .page-game-bai-tien-len-mien-nam__article-body {
        font-size: 1rem;
    }
    .page-game-bai-tien-len-mien-nam__faq-qtext {
        font-size: 1.05rem;
    }
    .page-game-bai-tien-len-mien-nam__faq-toggle {
        font-size: 26px;
    }
}

@media (max-width: 768px) {
    .page-game-bai-tien-len-mien-nam__hero-section {
        padding-top: 10px; /* Ensure small top padding */
        padding-bottom: 30px;
    }
    .page-game-bai-tien-len-mien-nam__hero-image {
        object-fit: contain !important; /* Prevent cropping on mobile */
        aspect-ratio: unset !important; /* Allow natural aspect ratio */
    }
    .page-game-bai-tien-len-mien-nam__hero-content {
        max-width: 100%;
        padding: 25px 15px;
        margin-top: 60px;
        border-radius: 0;
    }
    .page-game-bai-tien-len-mien-nam__main-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
        margin-bottom: 15px;
    }
    .page-game-bai-tien-len-mien-nam__description {
        font-size: clamp(0.9rem, 3.5vw, 1rem);
        margin-bottom: 25px;
    }
    .page-game-bai-tien-len-mien-nam__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .page-game-bai-tien-len-mien-nam__btn-primary,
    .page-game-bai-tien-len-mien-nam__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-game-bai-tien-len-mien-nam__section {
        padding: 40px 0;
    }
    .page-game-bai-tien-len-mien-nam__container {
        padding: 0 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden; /* Prevent horizontal scroll */
    }
    .page-game-bai-tien-len-mien-nam__section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
        margin-bottom: 30px;
        padding: 0 10px;
    }
    .page-game-bai-tien-len-mien-nam__sub-title {
        font-size: clamp(1.2rem, 5vw, 1.6rem);
        margin-top: 25px;
        margin-bottom: 10px;
    }
    .page-game-bai-tien-len-mien-nam__article-body {
        font-size: 0.95rem;
        padding: 0 10px;
        box-sizing: border-box;
    }
    .page-game-bai-tien-len-mien-nam__article-body p,
    .page-game-bai-tien-len-mien-nam__list,
    .page-game-bai-tien-len-mien-nam__ordered-list {
        padding: 0 5px;
    }
    .page-game-bai-tien-len-mien-nam__article-figure {
        margin: 20px auto;
        padding: 0 10px;
    }
    .page-game-bai-tien-len-mien-nam__article-figure img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-game-bai-tien-len-mien-nam__button-group {
        flex-direction: column;
        gap: 10px;
        margin-top: 30px;
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .page-game-bai-tien-len-mien-nam__faq-item {
        margin-bottom: 10px;
    }
    details.page-game-bai-tien-len-mien-nam__faq-item summary.page-game-bai-tien-len-mien-nam__faq-question {
        padding: 15px 20px;
    }
    .page-game-bai-tien-len-mien-nam__faq-qtext {
        font-size: 1rem;
    }
    .page-game-bai-tien-len-mien-nam__faq-toggle {
        font-size: 24px;
        margin-left: 15px;
        width: 25px;
    }
    details.page-game-bai-tien-len-mien-nam__faq-item .page-game-bai-tien-len-mien-nam__faq-answer {
        padding: 0 20px 15px;
    }
    .page-game-bai-tien-len-mien-nam__faq-answer p {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .page-game-bai-tien-len-mien-nam__hero-content {
        margin-top: 40px;
    }
    .page-game-bai-tien-len-mien-nam__main-title {
        font-size: clamp(1.6rem, 8vw, 2.2rem);
    }
    .page-game-bai-tien-len-mien-nam__description {
        font-size: clamp(0.85rem, 4vw, 0.95rem);
    }
    .page-game-bai-tien-len-mien-nam__section-title {
        font-size: clamp(1.4rem, 7vw, 1.8rem);
    }
    .page-game-bai-tien-len-mien-nam__sub-title {
        font-size: clamp(1.1rem, 6vw, 1.4rem);
    }
    .page-game-bai-tien-len-mien-nam__faq-qtext {
        font-size: 0.95rem;
    }
}