/* style/khuyen-mai.css */

:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-bg-dark: #08160F;
    --color-card-bg: #11271B;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
    --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-khuyen-mai {
    font-family: Arial, sans-serif;
    color: var(--color-text-main);
    background-color: var(--color-bg-dark);
    line-height: 1.6;
}

.page-khuyen-mai__container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

/* Top Section / Hero */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 40px;
}

.page-khuyen-mai__hero-image-wrapper {
    position: relative;
    width: 100%;
    height: 600px; /* Fixed height for desktop hero image */
    overflow: hidden;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.page-khuyen-mai__hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 900px;
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
    background: rgba(17, 39, 27, 0.7); /* Card BG with transparency */
    border-radius: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--color-border);
}

.page-khuyen-mai__main-title {
    font-size: 3.2em;
    font-weight: bold;
    color: var(--color-gold);
    margin-bottom: 15px;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

.page-khuyen-mai__description {
    font-size: 1.1em;
    color: var(--color-text-main);
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.page-khuyen-mai__btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-sizing: border-box;
    max-width: 100%;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
    background: var(--btn-gradient);
    color: var(--color-text-main);
    border: none;
    box-shadow: 0 5px 15px rgba(42, 209, 111, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

.page-khuyen-mai__btn-secondary {
    background: var(--color-card-bg);
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
    box-shadow: 0 5px 15px rgba(34, 199, 104, 0.2);
}

.page-khuyen-mai__btn-secondary:hover {
    transform: translateY(-3px);
    background: var(--color-secondary);
    color: var(--color-text-main);
}

/* General Sections */
.page-khuyen-mai__section-title {
    font-size: 2.5em;
    color: var(--color-gold);
    text-align: center;
    margin-bottom: 20px;
    margin-top: 40px;
    font-weight: bold;
}

.page-khuyen-mai__section-description {
    font-size: 1.05em;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px auto;
    line-height: 1.7;
}

/* Promo Categories Grid */
.page-khuyen-mai__promo-categories {
    padding: 60px 0;
}

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

.page-khuyen-mai__promo-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-khuyen-mai__promo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai__card-image {
    max-width: 100%;
    border-radius: 8px;
    margin-bottom: 20px;
    height: 200px; /* Fixed height for card images */
    object-fit: cover;
}

.page-khuyen-mai__card-title {
    font-size: 1.5em;
    color: var(--color-gold);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-khuyen-mai__card-text {
    font-size: 0.95em;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-khuyen-mai__btn-detail {
    display: inline-block;
    background: var(--btn-gradient);
    color: var(--color-text-main);
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.9em;
    transition: opacity 0.3s ease;
    margin-top: auto;
}

.page-khuyen-mai__btn-detail:hover {
    opacity: 0.9;
}

/* How To Claim Section */
.page-khuyen-mai__how-to-claim {
    padding: 60px 0;
    background-color: var(--color-deep-green);
    margin-top: 40px;
}

.page-khuyen-mai__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-khuyen-mai__step-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__step-icon {
    width: 60px;
    height: 60px;
    line-height: 60px;
    border-radius: 50%;
    background: var(--btn-gradient);
    color: var(--color-text-main);
    font-size: 2em;
    font-weight: bold;
    margin: 0 auto 20px auto;
    border: 2px solid var(--color-glow);
    box-shadow: 0 0 15px var(--color-glow);
}

.page-khuyen-mai__step-title {
    font-size: 1.3em;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.page-khuyen-mai__step-text {
    font-size: 0.95em;
    color: var(--color-text-secondary);
}

.page-khuyen-mai__guide-image-wrapper {
    text-align: center;
    margin-top: 40px;
}

.page-khuyen-mai__guide-image {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

/* Terms Summary Section */
.page-khuyen-mai__terms-summary {
    padding: 60px 0;
}

.page-khuyen-mai__terms-list {
    list-style: disc inside;
    color: var(--color-text-secondary);
    font-size: 1em;
    line-height: 1.8;
    margin: 0 auto 30px auto;
    max-width: 900px;
    text-align: left;
    padding-left: 20px;
}

.page-khuyen-mai__terms-list li {
    margin-bottom: 10px;
}

.page-khuyen-mai__read-more-terms {
    text-align: center;
    font-size: 1.05em;
    color: var(--color-text-main);
}

.page-khuyen-mai__link-terms {
    color: var(--color-secondary);
    text-decoration: underline;
    font-weight: bold;
}

.page-khuyen-mai__link-terms:hover {
    color: var(--color-gold);
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
    padding: 60px 0;
    background-color: var(--color-card-bg);
    border-top: 1px solid var(--color-divider);
    border-bottom: 1px solid var(--color-divider);
}

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

.page-khuyen-mai__faq-item {
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    font-size: 1.15em;
    font-weight: bold;
    color: var(--color-text-main);
    background-color: var(--color-deep-green);
    border-bottom: 1px solid var(--color-divider);
    list-style: none; /* For <details> summary */
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
    display: none;
}

.page-khuyen-mai__faq-qtext {
    flex-grow: 1;
    color: var(--color-gold);
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    color: var(--color-secondary);
    transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    transform: rotate(45deg);
}

.page-khuyen-mai__faq-answer {
    padding: 20px 25px;
    font-size: 1em;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-divider);
    background-color: var(--color-card-bg);
}

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

/* Join Us Section */
.page-khuyen-mai__join-us {
    padding: 60px 0;
    text-align: center;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__hero-image-wrapper {
        height: 500px;
    }

    .page-khuyen-mai__hero-content {
        max-width: 700px;
        padding: 15px;
    }

    .page-khuyen-mai__main-title {
        font-size: 2.8em;
    }

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

    .page-khuyen-mai__btn {
        padding: 12px 25px;
        font-size: 1em;
    }

    .page-khuyen-mai__section-title {
        font-size: 2em;
    }

    .page-khuyen-mai__card-title {
        font-size: 1.3em;
    }

    .page-khuyen-mai__card-image {
        height: 180px;
    }

    .page-khuyen-mai__guide-steps {
        gap: 20px;
    }

    .page-khuyen-mai__step-icon {
        width: 50px;
        height: 50px;
        line-height: 50px;
        font-size: 1.8em;
    }

    .page-khuyen-mai__faq-question {
        font-size: 1.05em;
        padding: 15px 20px;
    }

    .page-khuyen-mai__faq-answer {
        padding: 15px 20px;
    }
}

@media (max-width: 768px) {
    /* 1. Top Section / Hero */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        margin-bottom: 20px;
    }

    .page-khuyen-mai__hero-image-wrapper {
        height: 400px;
    }

    .page-khuyen-mai__hero-content {
        position: static;
        transform: none;
        padding: 20px 15px;
        max-width: 100% !important;
        margin: 0 auto;
        background: var(--color-card-bg);
        border-radius: 0;
        border: none;
        box-shadow: none;
    }

    .page-khuyen-mai__main-title {
        font-size: 2em;
        margin-bottom: 10px;
    }

    .page-khuyen-mai__description {
        font-size: 0.95em;
        margin-bottom: 20px;
    }

    /* 2. Buttons and Button Containers */
    .page-khuyen-mai__cta-buttons {
        flex-direction: column;
        gap: 10px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-khuyen-mai__btn,
    .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: 12px 15px;
        font-size: 1em;
    }

    .page-khuyen-mai__section-title {
        font-size: 1.8em;
        margin-top: 20px;
    }

    .page-khuyen-mai__section-description {
        font-size: 0.9em;
        margin-bottom: 20px;
    }

    /* 3. Single Column Long Text Container (and other general containers) */
    .page-khuyen-mai__container {
        padding-left: 15px !important;
        padding-right: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-khuyen-mai__promo-card {
        padding: 20px;
    }

    .page-khuyen-mai__card-image {
        height: 150px;
    }

    .page-khuyen-mai__card-title {
        font-size: 1.2em;
    }

    .page-khuyen-mai__card-text {
        font-size: 0.9em;
    }

    .page-khuyen-mai__guide-steps {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-khuyen-mai__step-card {
        padding: 20px;
    }

    .page-khuyen-mai__step-icon {
        width: 45px;
        height: 45px;
        line-height: 45px;
        font-size: 1.5em;
    }

    /* 4. Universal Images and Figure */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }

    .page-khuyen-mai__guide-image-wrapper {
        margin-top: 20px;
    }

    .page-khuyen-mai__terms-list {
        font-size: 0.9em;
        padding-left: 15px;
        text-align: left;
    }

    /* 5. FAQ Section */
    .page-khuyen-mai__faq-question {
        font-size: 1em;
        padding: 15px;
    }

    .page-khuyen-mai__faq-answer {
        padding: 15px;
        font-size: 0.9em;
    }
}