/* style/khuyen-mai.css */
.page-khuyen-mai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333333; /* Text Main color */
    background-color: #F5F7FA; /* Background color */
}

/* Fixed Header Spacing: Assuming shared.css handles body padding-top */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, relying on body padding for header offset */
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column; /* Image on top, content below */
    align-items: center;
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%); /* Button gradient for hero background */
    color: #ffffff;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    max-width: 1200px; /* Max width for the image */
    height: auto;
    object-fit: cover;
    display: block;
    margin: 20px auto 0 auto; /* Image below content */
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__hero-content {
    max-width: 900px;
    margin: 40px auto 0 auto; /* Content above image */
    padding: 0 20px;
    z-index: 1;
}

.page-khuyen-mai__hero-title {
    font-size: 2.8em;
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.2;
    color: #ffffff;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__hero-description {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: #f0f0f0;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__hero-button,
.page-khuyen-mai__promo-card-button,
.page-khuyen-mai__guide-button,
.page-khuyen-mai__cta-button {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    cursor: pointer;
    text-align: center;
    box-sizing: border-box;
    max-width: 100%;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__hero-button,
.page-khuyen-mai__guide-button,
.page-khuyen-mai__cta-button {
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%); /* Button gradient */
    color: #ffffff;
    border: none;
}

.page-khuyen-mai__btn-primary:hover,
.page-khuyen-mai__hero-button:hover,
.page-khuyen-mai__guide-button:hover,
.page-khuyen-mai__cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__promo-card-button {
    background: #ffffff; /* Card BG color */
    color: #E53935; /* Main color */
    border: 2px solid #E53935; /* Main color */
}

.page-khuyen-mai__btn-secondary:hover,
.page-khuyen-mai__promo-card-button:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-khuyen-mai__section-title {
    font-size: 2.2em;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
    color: #E53935; /* Main color */
}

.page-khuyen-mai__section-intro {
    font-size: 1.1em;
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #333333;
}

.page-khuyen-mai__promotions-overview-section,
.page-khuyen-mai__game-specific-promos-section,
.page-khuyen-mai__guide-section,
.page-khuyen-mai__faq-section,
.page-khuyen-mai__conclusion-section {
    padding: 60px 0;
    margin-bottom: 20px;
}

.page-khuyen-mai__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-khuyen-mai__promo-card {
    background: #ffffff; /* Card BG color */
    border: 1px solid #E0E0E0; /* Border color */
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    text-align: center;
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-khuyen-mai__promo-card-image {
    width: 100%;
    height: 250px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
    border-bottom: 1px solid #E0E0E0;
}

.page-khuyen-mai__promo-card-title {
    font-size: 1.4em;
    font-weight: bold;
    margin: 20px 15px 10px 15px;
    color: #E53935; /* Main color */
}

.page-khuyen-mai__promo-card-description {
    font-size: 1em;
    padding: 0 15px 20px 15px;
    flex-grow: 1;
    color: #333333;
}

.page-khuyen-mai__promo-card-button {
    margin: 0 15px 20px 15px;
}

.page-khuyen-mai__game-promo-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.page-khuyen-mai__game-promo-item {
    background: #ffffff;
    border: 1px solid #E0E0E0;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.page-khuyen-mai__game-promo-item:hover {
    transform: translateY(-3px);
}

.page-khuyen-mai__game-promo-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 10px;
    color: #E53935;
}

.page-khuyen-mai__game-promo-description {
    font-size: 1em;
    color: #333333;
}

.page-khuyen-mai__cta-wrapper {
    text-align: center;
    margin-top: 30px;
}

.page-khuyen-mai__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-khuyen-mai__guide-item {
    background: #ffffff;
    border: 1px solid #E0E0E0;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__guide-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 15px;
    color: #E53935;
}

.page-khuyen-mai__guide-description,
.page-khuyen-mai__guide-list {
    font-size: 1em;
    color: #333333;
    margin-bottom: 15px;
}

.page-khuyen-mai__guide-list {
    padding-left: 20px;
    list-style-type: decimal;
}

.page-khuyen-mai__guide-list li {
    margin-bottom: 8px;
}

.page-khuyen-mai__dark-bg {
    background: #E53935; /* Main color as background */
    color: #ffffff; /* White text for contrast */
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__section-intro,
.page-khuyen-mai__dark-bg .page-khuyen-mai__benefit-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__benefit-description {
    color: #ffffff;
}

.page-khuyen-mai__benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.page-khuyen-mai__benefit-item {
    background: rgba(255, 255, 255, 0.15); /* Slightly transparent white on dark background */
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__benefit-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 10px;
}

.page-khuyen-mai__faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.page-khuyen-mai__faq-item {
    background: #ffffff;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__faq-question {
    display: block; /* Make summary fill width */
    padding: 18px 25px;
    font-size: 1.1em;
    font-weight: bold;
    color: #E53935;
    cursor: pointer;
    position: relative;
    list-style: none; /* Remove default marker */
}

.page-khuyen-mai__faq-question::-webkit-details-marker,
.page-khuyen-mai__faq-question::marker {
    display: none; /* Hide default marker for webkit and standard */
}

.page-khuyen-mai__faq-question:hover {
    background-color: #fffaf7;
}

.page-khuyen-mai__faq-question::after {
    content: '+';
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5em;
    color: #E53935;
    transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-question::after {
    content: '-';
    transform: translateY(-50%) rotate(180deg);
}

.page-khuyen-mai__faq-answer {
    padding: 0 25px 20px 25px;
    font-size: 1em;
    color: #333333;
}

.page-khuyen-mai__faq-answer p {
    margin: 0;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .page-khuyen-mai__hero-title {
        font-size: 2.5em;
    }
    .page-khuyen-mai__section-title {
        font-size: 2em;
    }
    .page-khuyen-mai__promo-grid,
    .page-khuyen-mai__game-promo-list,
    .page-khuyen-mai__guide-steps,
    .page-khuyen-mai__benefits-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .page-khuyen-mai {
        font-size: 16px;
        line-height: 1.6;
    }

    /* Hero Section */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important; /* Ensure small top padding */
        margin-bottom: 20px;
    }
    .page-khuyen-mai__hero-content {
        margin-top: 20px;
        padding: 0 15px;
    }
    .page-khuyen-mai__hero-title {
        font-size: 1.8em !important; /* Smaller font size for mobile H1 */
        margin-bottom: 10px;
    }
    .page-khuyen-mai__hero-description {
        font-size: 1em;
        margin-bottom: 20px;
    }
    .page-khuyen-mai__hero-image {
        margin: 15px auto 0 auto;
        border-radius: 0;
    }

    /* General sections */
    .page-khuyen-mai__promotions-overview-section,
    .page-khuyen-mai__game-specific-promos-section,
    .page-khuyen-mai__guide-section,
    .page-khuyen-mai__faq-section,
    .page-khuyen-mai__conclusion-section {
        padding: 40px 0;
        margin-bottom: 10px;
    }
    .page-khuyen-mai__container {
        padding: 0 15px;
    }
    .page-khuyen-mai__section-title {
        font-size: 1.8em;
        margin-bottom: 15px;
    }
    .page-khuyen-mai__section-intro {
        font-size: 0.95em;
        margin-bottom: 30px;
    }

    /* Promo Grid (Card-like layout for promotions) */
    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr !important; /* Single column on mobile */
        gap: 20px;
    }
    .page-khuyen-mai__promo-card-image {
        height: 200px;
    }

    /* Game Promo List */
    .page-khuyen-mai__game-promo-list {
        grid-template-columns: 1fr !important; /* Single column on mobile */
        gap: 15px;
    }
    .page-khuyen-mai__game-promo-item {
        padding: 20px;
    }
    .page-khuyen-mai__game-promo-title {
        font-size: 1.2em;
    }

    /* Guide Steps */
    .page-khuyen-mai__guide-steps {
        grid-template-columns: 1fr !important; /* Single column on mobile */
        gap: 20px;
    }
    .page-khuyen-mai__guide-item {
        padding: 20px;
    }
    .page-khuyen-mai__guide-title {
        font-size: 1.2em;
    }

    /* Benefits Grid (Why Choose Section) */
    .page-khuyen-mai__benefits-grid {
        grid-template-columns: 1fr !important; /* Single column on mobile */
        gap: 20px;
    }
    .page-khuyen-mai__benefit-item {
        padding: 20px;
    }
    .page-khuyen-mai__benefit-title {
        font-size: 1.2em;
    }

    /* FAQ List */
    .page-khuyen-mai__faq-list {
        padding: 0 !important;
    }
    .page-khuyen-mai__faq-question {
        font-size: 1em;
        padding: 15px 20px;
    }
    .page-khuyen-mai__faq-question::after {
        right: 20px;
        font-size: 1.2em;
    }
    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px 20px;
    }

    /* Universal Image and Button rules */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    .page-khuyen-mai__promotions-overview-section,
    .page-khuyen-mai__game-specific-promos-section,
    .page-khuyen-mai__guide-section,
    .page-khuyen-mai__why-choose-section,
    .page-khuyen-mai__faq-section,
    .page-khuyen-mai__conclusion-section,
    .page-khuyen-mai__promo-card,
    .page-khuyen-mai__game-promo-item,
    .page-khuyen-mai__guide-item,
    .page-khuyen-mai__benefit-item,
    .page-khuyen-mai__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai__hero-button,
    .page-khuyen-mai__promo-card-button,
    .page-khuyen-mai__guide-button,
    .page-khuyen-mai__cta-button {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-khuyen-mai__cta-wrapper {
        display: flex;
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 10px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-khuyen-mai__cta-wrapper .page-khuyen-mai__cta-button {
        margin: 0 !important;
    }
}