/* style/khuyen-mai.css */

/* General Styles for page-khuyen-mai */
.page-khuyen-mai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #FFF6D6; /* Text Main */
    background-color: #0A0A0A; /* Background */
}

.page-khuyen-mai__container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
    box-sizing: border-box;
}

.page-khuyen-mai__section-title {
    font-size: 2.5em;
    font-weight: bold;
    color: #F2C14E; /* Primary color */
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-khuyen-mai__section-description {
    font-size: 1.1em;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #FFF6D6; /* Text Main */
}

/* Buttons */
.page-khuyen-mai__btn-primary {
    display: inline-block;
    padding: 12px 25px;
    font-size: 1em;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); /* Button color */
    color: #111111; /* Dark text for light button */
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(242, 193, 78, 0.6);
}

.page-khuyen-mai__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    font-size: 1em;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    background-color: transparent;
    color: #F2C14E; /* Primary color */
    border: 2px solid #F2C14E; /* Primary color as border */
    cursor: pointer;
    transition: all 0.3s ease;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: #F2C14E;
    color: #111111;
    transform: translateY(-2px);
}

.page-khuyen-mai__btn-small {
    padding: 8px 18px;
    font-size: 0.9em;
}

.page-khuyen-mai__btn-large {
    padding: 15px 30px;
    font-size: 1.1em;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding to avoid double header offset */
    padding-bottom: 60px;
    background-color: #0A0A0A; /* Background */
    position: relative;
    overflow: hidden;
}

.page-khuyen-mai__hero-container {
    max-width: 1170px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    padding: 40px 16px;
    box-sizing: border-box;
}

.page-khuyen-mai__hero-content {
    flex: 1 1 50%;
    min-width: 300px;
    text-align: left;
    color: #FFF6D6; /* Text Main */
}

.page-khuyen-mai__main-title {
    font-size: clamp(2em, 4vw, 3.2em); /* Responsive font size */
    font-weight: 800;
    color: #F2C14E; /* Primary color */
    margin-bottom: 15px;
    line-height: 1.2;
}

.page-khuyen-mai__hero-description {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: #FFF6D6; /* Text Main */
}

.page-khuyen-mai__cta-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.page-khuyen-mai__hero-image {
    flex: 1 1 40%;
    min-width: 300px;
    text-align: center;
}

.page-khuyen-mai__hero-main-img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    display: block;
    margin: 0 auto;
}

/* Intro Section */
.page-khuyen-mai__intro-section {
    background-color: #111111; /* Card BG */
    padding: 60px 0;
}

/* Promo Types Section */
.page-khuyen-mai__promo-types-section {
    background-color: #0A0A0A; /* Background */
    padding: 60px 0;
}

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

.page-khuyen-mai__promo-card {
    background-color: #111111; /* Card BG */
    border: 1px solid #3A2A12; /* Border */
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(242, 193, 78, 0.2);
}

.page-khuyen-mai__promo-card-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
}

.page-khuyen-mai__promo-card-title {
    font-size: 1.5em;
    color: #FFD36B; /* Glow */
    margin-bottom: 15px;
    font-weight: bold;
}

.page-khuyen-mai__promo-card-text {
    font-size: 1em;
    color: #FFF6D6; /* Text Main */
    margin-bottom: 20px;
    flex-grow: 1; /* Ensures text fills space */
}

/* Guide Section */
.page-khuyen-mai__guide-section {
    background-color: #111111; /* Card BG */
    padding: 60px 0;
}

.page-khuyen-mai__guide-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__guide-item {
    background-color: #0A0A0A; /* Background */
    border: 1px solid #3A2A12; /* Border */
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    flex: 1 1 calc(33.333% - 20px); /* 3 items per row on desktop */
    max-width: calc(33.333% - 20px);
    box-sizing: border-box;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__guide-icon {
    width: 60px;
    height: 60px;
    line-height: 60px;
    border-radius: 50%;
    background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); /* Button color */
    color: #111111;
    font-size: 1.8em;
    font-weight: bold;
    margin: 0 auto 20px;
}

.page-khuyen-mai__guide-title {
    font-size: 1.4em;
    color: #F2C14E; /* Primary color */
    margin-bottom: 10px;
    font-weight: bold;
}

.page-khuyen-mai__guide-text {
    font-size: 1em;
    color: #FFF6D6; /* Text Main */
}

/* Terms Section */
.page-khuyen-mai__terms-section {
    background-color: #0A0A0A; /* Background */
    padding: 60px 0;
}

.page-khuyen-mai__terms-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__terms-item {
    background-color: #111111; /* Card BG */
    border: 1px solid #3A2A12; /* Border */
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    font-size: 1.1em;
    color: #FFF6D6; /* Text Main */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__terms-item strong {
    color: #FFD36B; /* Glow */
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
    background-color: #111111; /* Card BG */
    padding: 60px 0;
}

.page-khuyen-mai__faq-list {
    max-width: 900px;
    margin: 40px auto 0;
}

.page-khuyen-mai__faq-item {
    background-color: #0A0A0A; /* Background */
    border: 1px solid #3A2A12; /* Border */
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.page-khuyen-mai__faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.2em;
    font-weight: bold;
    color: #F2C14E; /* Primary color */
    cursor: pointer;
    list-style: none; /* Hide default marker */
    outline: none;
    user-select: none;
}

.page-khuyen-mai__faq-item summary::-webkit-details-marker {
    display: none; /* Hide default marker for webkit */
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    transform: rotate(45deg); /* Rotate for 'x' effect */
}

.page-khuyen-mai__faq-answer {
    padding: 0 20px 20px;
    font-size: 1em;
    color: #FFF6D6; /* Text Main */
}

/* Benefits Section */
.page-khuyen-mai__benefits-section {
    background-color: #0A0A0A; /* Background */
    padding: 60px 0;
}

.page-khuyen-mai__benefits-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__benefits-item {
    background-color: #111111; /* Card BG */
    border: 1px solid #3A2A12; /* Border */
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    font-size: 1.1em;
    color: #FFF6D6; /* Text Main */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__benefits-item strong {
    color: #FFD36B; /* Glow */
}

.page-khuyen-mai__cta-bottom {
    text-align: center;
    margin-top: 50px;
}


/* --- Responsive Design --- */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
    .page-khuyen-mai__section-title {
        font-size: 2em;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1.1em;
    }

    .page-khuyen-mai__guide-item {
        flex: 1 1 calc(50% - 15px); /* 2 items per row */
        max-width: calc(50% - 15px);
    }
}

/* Mobile (max-width: 768px) - MUST INCLUDE ALL CHECKLIST ITEMS */
@media (max-width: 768px) {
    /* General Mobile Adjustments */
    .page-khuyen-mai {
        font-size: 16px;
        line-height: 1.6;
    }
    
    .page-khuyen-mai__container {
        padding: 20px 15px !important; /* Ensure padding for containers */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important; /* Prevent horizontal scroll */
    }

    .page-khuyen-mai__section-title {
        font-size: 1.8em;
        margin-bottom: 15px;
    }

    .page-khuyen-mai__section-description {
        font-size: 1em;
        margin-bottom: 30px;
    }

    /* HERO Section */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important; /* Enforce small top padding */
        padding-bottom: 40px;
    }

    .page-khuyen-mai__hero-container {
        flex-direction: column;
        gap: 30px;
        padding: 30px 15px !important;
    }

    .page-khuyen-mai__hero-content {
        text-align: center;
        width: 100%;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8em, 7vw, 2.5em); /* Adjust for smaller screens */
    }

    .page-khuyen-mai__hero-description {
        font-size: 1em;
    }

    .page-khuyen-mai__cta-group {
        flex-direction: column;
        gap: 15px;
        align-items: center; /* Center buttons */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__hero-image {
        width: 100%;
    }

    .page-khuyen-mai__hero-main-img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    /* Buttons - General Mobile Adaption */
    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai a[class*="button"],
    .page-khuyen-mai 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;
    }

    /* Promo Types Section */
    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr; /* Single column */
        gap: 20px;
    }

    .page-khuyen-mai__promo-card {
        padding: 20px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .page-khuyen-mai__promo-card-img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    /* Guide Section */
    .page-khuyen-mai__guide-steps {
        flex-direction: column; /* Stack items vertically */
        gap: 20px;
    }

    .page-khuyen-mai__guide-item {
        flex: 1 1 100%;
        max-width: 100%;
        padding: 25px;
    }

    /* Terms Section */
    .page-khuyen-mai__terms-list {
        margin-top: 30px;
    }

    .page-khuyen-mai__terms-item {
        font-size: 1em;
        padding: 15px;
    }

    /* FAQ Section */
    .page-khuyen-mai__faq-list {
        margin-top: 30px;
    }

    .page-khuyen-mai__faq-item summary {
        font-size: 1.1em;
        padding: 15px;
    }

    .page-khuyen-mai__faq-answer {
        padding: 0 15px 15px;
        font-size: 0.95em;
    }

    /* Benefits Section */
    .page-khuyen-mai__benefits-list {
        margin-top: 30px;
    }

    .page-khuyen-mai__benefits-item {
        font-size: 1em;
        padding: 15px;
    }

    .page-khuyen-mai__cta-bottom {
        margin-top: 40px;
    }

    /* Generic Image Responsiveness (for all img tags within .page-khuyen-mai) */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    
    /* Ensure containers with images also adapt */
    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container,
    .page-khuyen-mai__promo-card {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}