.page-khuyen-mai-chi-tiet-uu-dai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main-color, #FFF6D6); /* Default to light text for dark background */
    background-color: var(--background-color, #0A0A0A); /* Inherit or use dark background */
}

.page-khuyen-mai-chi-tiet-uu-dai__hero-section {
    background-color: var(--background-color, #0A0A0A);
    padding-top: 10px; /* Adhering to fixed header spacing rule */
    padding-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.page-khuyen-mai-chi-tiet-uu-dai__hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    padding: 40px 20px;
}

.page-khuyen-mai-chi-tiet-uu-dai__hero-content {
    flex: 1 1 50%;
    min-width: 300px;
    color: var(--text-main-color, #FFF6D6); /* Light text on dark background */
}

.page-khuyen-mai-chi-tiet-uu-dai__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem); /* H1 font size clamp */
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--primary-color, #F2C14E); /* Using brand primary for title for contrast */
}

.page-khuyen-mai-chi-tiet-uu-dai__hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-main-color, #FFF6D6);
}

.page-khuyen-mai-chi-tiet-uu-dai__cta-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.page-khuyen-mai-chi-tiet-uu-dai__hero-image {
    flex: 1 1 40%;
    min-width: 300px;
    text-align: center;
}

.page-khuyen-mai-chi-tiet-uu-dai__hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    display: block;
}

.page-khuyen-mai-chi-tiet-uu-dai__btn-primary,
.page-khuyen-mai-chi-tiet-uu-dai__btn-secondary {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%; /* For button responsiveness */
}

.page-khuyen-mai-chi-tiet-uu-dai__btn-primary {
    background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
    color: #ffffff; /* White text on button */
    border: none;
    box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
}

.page-khuyen-mai-chi-tiet-uu-dai__btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

.page-khuyen-mai-chi-tiet-uu-dai__btn-secondary {
    background: transparent;
    color: var(--primary-color, #F2C14E);
    border: 2px solid var(--primary-color, #F2C14E);
}

.page-khuyen-mai-chi-tiet-uu-dai__btn-secondary:hover {
    background: var(--primary-color, #F2C14E);
    color: #ffffff;
}

.page-khuyen-mai-chi-tiet-uu-dai__content-wrapper {
    background-color: var(--background-color, #0A0A0A);
    padding: 60px 0;
}

.page-khuyen-mai-chi-tiet-uu-dai__content-area {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    color: var(--text-main-color, #FFF6D6);
}

.page-khuyen-mai-chi-tiet-uu-dai__section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color, #F2C14E);
    margin-bottom: 30px;
    text-align: center;
    padding-top: 40px;
}

.page-khuyen-mai-chi-tiet-uu-dai__content-area p {
    font-size: 1.05rem;
    margin-bottom: 20px;
    line-height: 1.7;
    color: var(--text-main-color, #FFF6D6);
}

.page-khuyen-mai-chi-tiet-uu-dai__content-area a {
    color: var(--secondary-color, #FFD36B);
    text-decoration: underline;
}

.page-khuyen-mai-chi-tiet-uu-dai__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 30px;
    margin-bottom: 60px;
}

.page-khuyen-mai-chi-tiet-uu-dai__promo-card {
    background-color: var(--card-bg-color, #111111); /* Card BG color */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color, #3A2A12);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.page-khuyen-mai-chi-tiet-uu-dai__card-image {
    width: 100%;
    height: 225px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

.page-khuyen-mai-chi-tiet-uu-dai__promo-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color, #F2C14E);
    margin: 20px 20px 10px;
    line-height: 1.3;
}

.page-khuyen-mai-chi-tiet-uu-dai__promo-card p {
    font-size: 0.95rem;
    color: var(--text-main-color, #FFF6D6);
    margin: 0 20px 20px;
    flex-grow: 1;
}

.page-khuyen-mai-chi-tiet-uu-dai__promo-card .page-khuyen-mai-chi-tiet-uu-dai__btn-secondary {
    margin: 0 20px 20px;
    align-self: flex-start;
    width: auto;
    max-width: calc(100% - 40px);
}

.page-khuyen-mai-chi-tiet-uu-dai__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
    margin-bottom: 60px;
}

.page-khuyen-mai-chi-tiet-uu-dai__guide-item {
    background-color: var(--card-bg-color, #111111);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-color, #3A2A12);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai-chi-tiet-uu-dai__guide-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
    color: #ffffff;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai-chi-tiet-uu-dai__guide-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color, #F2C14E);
    margin-bottom: 15px;
}

.page-khuyen-mai-chi-tiet-uu-dai__guide-item p {
    font-size: 0.95rem;
    color: var(--text-main-color, #FFF6D6);
    margin-bottom: 0;
}

.page-khuyen-mai-chi-tiet-uu-dai__cta-center {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 60px;
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-list {
    margin-top: 30px;
    margin-bottom: 60px;
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-item {
    background-color: var(--card-bg-color, #111111);
    border: 1px solid var(--border-color, #3A2A12);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-color, #F2C14E);
    cursor: pointer;
    background-color: var(--card-bg-color, #111111);
    user-select: none;
    list-style: none; /* For details/summary */
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-question::-webkit-details-marker {
    display: none;
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-qtext {
    flex-grow: 1;
    margin-right: 15px;
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    color: var(--secondary-color, #FFD36B);
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    color: var(--text-main-color, #FFF6D6);
    line-height: 1.6;
}

.page-khuyen-mai-chi-tiet-uu-dai__faq-answer p {
    margin-bottom: 0;
}

.page-khuyen-mai-chi-tiet-uu-dai__why-choose-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    margin-top: 30px;
    margin-bottom: 40px;
    padding: 20px 0;
}

.page-khuyen-mai-chi-tiet-uu-dai__why-choose-image {
    flex: 1 1 45%;
    min-width: 280px;
    max-width: 600px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    display: block;
}

.page-khuyen-mai-chi-tiet-uu-dai__why-choose-list {
    flex: 1 1 45%;
    min-width: 280px;
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.page-khuyen-mai-chi-tiet-uu-dai__why-choose-list li {
    font-size: 1.1rem;
    color: var(--text-main-color, #FFF6D6);
    margin-bottom: 15px;
    position: relative;
    padding-left: 30px;
}

.page-khuyen-mai-chi-tiet-uu-dai__why-choose-list li::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: var(--secondary-color, #FFD36B);
    font-size: 1.2rem;
    line-height: 1;
}

.page-khuyen-mai-chi-tiet-uu-dai__list-highlight {
    color: var(--primary-color, #F2C14E);
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
    .page-khuyen-mai-chi-tiet-uu-dai__hero-container,
    .page-khuyen-mai-chi-tiet-uu-dai__content-area {
        padding: 0 15px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__hero-content,
    .page-khuyen-mai-chi-tiet-uu-dai__hero-image {
        flex: 1 1 100%;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__main-title {
        font-size: clamp(2rem, 6vw, 3rem);
    }
    .page-khuyen-mai-chi-tiet-uu-dai__section-title {
        font-size: 2rem;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__promo-grid,
    .page-khuyen-mai-chi-tiet-uu-dai__guide-steps {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-content {
        flex-direction: column;
        text-align: center;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-image {
        max-width: 100%;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-list {
        padding-left: 20px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-list li {
        text-align: left;
    }
}

@media (max-width: 768px) {
    /* HERO section */
    .page-khuyen-mai-chi-tiet-uu-dai__hero-section {
        padding-top: 10px !important; /* Fixed header spacing rule */
        padding-bottom: 30px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__hero-container {
        flex-direction: column;
        padding: 20px 15px;
        gap: 20px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        text-align: center;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__hero-description {
        font-size: 1rem;
        text-align: center;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__cta-group {
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__btn-primary,
    .page-khuyen-mai-chi-tiet-uu-dai__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px;
        font-size: 0.95rem;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__hero-image img {
        width: 100% !important;
        height: auto !important;
    }

    /* General content sections */
    .page-khuyen-mai-chi-tiet-uu-dai__content-wrapper {
        padding: 30px 0;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__content-area {
        padding: 0 15px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__section-title {
        font-size: 1.8rem;
        padding-top: 30px;
        margin-bottom: 20px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__content-area p {
        font-size: 0.95rem;
    }

    /* Promo Grid (cards) */
    .page-khuyen-mai-chi-tiet-uu-dai__promo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 20px;
        margin-bottom: 40px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__card-image {
        width: 100% !important;
        height: auto !important; /* Adjust height for mobile */
        max-height: 200px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__promo-card h3 {
        font-size: 1.2rem;
        margin: 15px 15px 8px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__promo-card p {
        font-size: 0.9rem;
        margin: 0 15px 15px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__promo-card .page-khuyen-mai-chi-tiet-uu-dai__btn-secondary {
        margin: 0 15px 15px;
        max-width: calc(100% - 30px);
    }

    /* Guide Steps */
    .page-khuyen-mai-chi-tiet-uu-dai__guide-steps {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 20px;
        margin-bottom: 40px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__guide-item {
        padding: 20px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__guide-number {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__guide-title {
        font-size: 1.1rem;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__guide-item p {
        font-size: 0.9rem;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__cta-center {
        margin-top: 30px;
        margin-bottom: 40px;
    }

    /* FAQ Section */
    .page-khuyen-mai-chi-tiet-uu-dai__faq-list {
        margin-top: 20px;
        margin-bottom: 40px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__faq-question {
        padding: 15px 20px;
        font-size: 1rem;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__faq-toggle {
        font-size: 1.5rem;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__faq-answer {
        padding: 0 20px 15px;
        font-size: 0.95rem;
    }

    /* Why Choose Section */
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-content {
        flex-direction: column;
        gap: 20px;
        margin-top: 20px;
        margin-bottom: 30px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-image {
        width: 100% !important;
        height: auto !important;
        max-width: 100%;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-list {
        padding-left: 0;
        text-align: left;
        width: 100%;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-list li {
        font-size: 1rem;
        padding-left: 25px;
        margin-bottom: 10px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__why-choose-list li::before {
        font-size: 1rem;
    }

    /* Universal image and container responsiveness */
    .page-khuyen-mai-chi-tiet-uu-dai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__section,
    .page-khuyen-mai-chi-tiet-uu-dai__card,
    .page-khuyen-mai-chi-tiet-uu-dai__container,
    .page-khuyen-mai-chi-tiet-uu-dai__promo-card,
    .page-khuyen-mai-chi-tiet-uu-dai__guide-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Button and button container responsiveness */
    .page-khuyen-mai-chi-tiet-uu-dai__cta-button,
    .page-khuyen-mai-chi-tiet-uu-dai__btn-primary,
    .page-khuyen-mai-chi-tiet-uu-dai__btn-secondary,
    .page-khuyen-mai-chi-tiet-uu-dai a[class*="button"],
    .page-khuyen-mai-chi-tiet-uu-dai a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-khuyen-mai-chi-tiet-uu-dai__cta-group,
    .page-khuyen-mai-chi-tiet-uu-dai__button-group,
    .page-khuyen-mai-chi-tiet-uu-dai__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
        flex-direction: column; /* Ensure vertical stacking for CTA groups */
    }
}