:root {
    --main-color: #113B7A;
    --accent-color: #1D5FD1;
    --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
    --card-bg: #10233F;
    --text-main: #F3F8FF;
    --text-secondary: #AFC4E8;
    --border-color: #244D84;
    --glow-color: #4FA8FF;
    --gold-color: #F2C14E;
    --divider-color: #1B3357;
    --deep-navy: #08162B;
}

/* Base styles for the page content, ensuring light text on dark body background */
.page-khuyen-mai-chi-tiet-uu-dai-moi {
    color: var(--text-main); /* #F3F8FF */
    background-color: var(--deep-navy); /* #08162B */
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__section-title {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--gold-color); /* #F2C14E */
    text-align: center;
    margin-bottom: 40px;
    line-height: 1.2;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__brand-highlight {
    color: var(--gold-color); /* #F2C14E */
}

/* General image responsive styles */
.page-khuyen-mai-chi-tiet-uu-dai-moi img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* CTA Button styles */
.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button--primary {
    background: var(--button-gradient); /* linear-gradient(180deg, #2B73F6 0%, #1144A6 100%) */
    color: var(--text-main); /* #F3F8FF */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button--secondary {
    background-color: transparent;
    color: var(--text-main); /* #F3F8FF */
    border: 2px solid var(--border-color); /* #244D84 */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button--secondary:hover {
    background-color: var(--border-color); /* #244D84 */
    transform: translateY(-2px);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button--small {
    padding: 8px 18px;
    font-size: 0.9em;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__inline-link {
    color: var(--glow-color); /* #4FA8FF */
    text-decoration: underline;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__inline-link:hover {
    color: var(--text-main); /* #F3F8FF */
}

/* Hero Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-section {
    padding-top: 10px; /* As per fixed header spacing rule */
    padding-bottom: 60px;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-container {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 40px 15px;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap; /* Ensure responsiveness */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-content {
    flex: 1;
    min-width: 300px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-title {
    font-size: clamp(2.5em, 5vw, 3.5em); /* Use clamp for H1 font size */
    color: var(--gold-color); /* #F2C14E */
    margin-bottom: 20px;
    line-height: 1.1;
    font-weight: 700;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-description {
    font-size: 1.1em;
    color: var(--text-secondary); /* #AFC4E8 */
    margin-bottom: 30px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-image {
    flex: 1;
    min-width: 400px;
    text-align: center;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__hero-main-img {
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Intro Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__intro-section {
    padding: 80px 0;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__intro-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    font-size: 1.05em;
    color: var(--text-secondary);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__intro-img {
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Promo List Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-list-section {
    padding: 80px 0;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-card {
    background-color: var(--card-bg); /* #10233F */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    height: 100%;
    color: var(--text-main); /* Light text on dark card background */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-card-title {
    font-size: 1.4em;
    color: var(--gold-color); /* #F2C14E */
    padding: 20px 20px 10px;
    line-height: 1.3;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-card-description {
    font-size: 0.95em;
    color: var(--text-secondary); /* #AFC4E8 */
    padding: 0 20px 20px;
    flex-grow: 1; /* Push button to bottom */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__promo-card .page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button {
    margin: 0 20px 20px;
    width: calc(100% - 40px);
}

/* Terms Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__terms-section {
    padding: 80px 0;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__terms-content {
    font-size: 1.05em;
    color: var(--text-secondary);
    text-align: justify;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__terms-list {
    list-style-type: disc;
    margin-left: 20px;
    padding-left: 10px;
    margin-top: 20px;
    margin-bottom: 30px;
    color: var(--text-main);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__terms-list li {
    margin-bottom: 10px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__terms-section .page-khuyen-mai-chi-tiet-uu-dai-moi__cta-button {
    margin-top: 30px;
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

/* Guide Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__guide-section {
    padding: 80px 0;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__guide-step {
    background-color: var(--card-bg); /* #10233F */
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    color: var(--text-main);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__guide-img {
    border-radius: 8px;
    margin-bottom: 20px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__guide-step-title {
    font-size: 1.5em;
    color: var(--gold-color); /* #F2C14E */
    margin-bottom: 15px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__guide-step p {
    color: var(--text-secondary);
}

/* FAQ Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-section {
    padding: 80px 0;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-list {
    max-width: 900px;
    margin: 0 auto 40px;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-item {
    background-color: var(--card-bg); /* #10233F */
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    color: var(--text-main);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1em;
    color: var(--gold-color); /* #F2C14E */
    list-style: none; /* Hide default marker */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-item summary::-webkit-details-marker {
    display: none; /* Hide default marker for Webkit */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    transition: transform 0.3s ease;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-item[open] .page-khuyen-mai-chi-tiet-uu-dai-moi__faq-toggle {
    transform: rotate(45deg); /* Change + to X or rotate */
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-answer {
    padding: 0 25px 20px;
    font-size: 0.95em;
    color: var(--text-secondary);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__faq-view-all {
    display: block;
    width: fit-content;
    margin: 0 auto;
}

/* CTA Bottom Section */
.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-bottom-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--deep-navy);
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-bottom-description {
    font-size: 1.1em;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai-chi-tiet-uu-dai-moi__cta-bottom-img {
    margin-top: 50px;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai-chi-tiet-uu-dai-moi__hero-container {
        flex-direction: column;
        text-align: center;
    }

    .page-khuyen-mai-chi-tiet-uu-dai-moi__hero-content {
        order: 2; /* Content below image */
    }

    .page-khuyen-mai-chi-tiet-uu-dai-moi__hero-image {
        order: 1; /* Image above content */
        min-width: unset;
        width: 100%;
    }
}