/* style/khuyen-mai.css */

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

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

.page-khuyen-mai__section {
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
}

.page-khuyen-mai__section-title {
    font-size: 2.5em;
    color: var(--gold-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.05em;
}

.page-khuyen-mai__section-description {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Rely on body padding-top from shared.css */
    position: relative;
    text-align: center;
    overflow: hidden;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Cover for desktop */
    max-height: 600px;
}

.page-khuyen-mai__hero-content {
    position: relative;
    z-index: 1;
    padding: 40px 20px;
    background: rgba(8, 22, 15, 0.7); /* Slightly transparent dark background for readability */
    margin-top: -100px; /* Pull content up slightly over the image for visual flow */
    border-radius: 10px 10px 0 0;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.3);
}

.page-khuyen-mai__main-title {
    font-size: clamp(2em, 3.5vw, 3.2em); /* Responsive font size */
    color: var(--gold-color);
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

.page-khuyen-mai__intro-text {
    font-size: 1.1em;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1.05em;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
    background: var(--btn-gradient);
    color: var(--text-main);
    border: none;
    box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-khuyen-mai__btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 15px;
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-main);
    transform: translateY(-2px);
}

/* Promotion Grid */
.page-khuyen-mai__promo-grid,
.page-khuyen-mai__game-promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-khuyen-mai__promo-card,
.page-khuyen-mai__game-promo-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    text-align: center;
    padding-bottom: 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover,
.page-khuyen-mai__game-promo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.page-khuyen-mai__promo-card-image,
.page-khuyen-mai__game-promo-card-image {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
    margin-bottom: 20px;
}

.page-khuyen-mai__promo-card-title,
.page-khuyen-mai__game-promo-card-title {
    font-size: 1.5em;
    color: var(--gold-color);
    margin-bottom: 10px;
    padding: 0 15px;
}

.page-khuyen-mai__promo-card-title a,
.page-khuyen-mai__game-promo-card-title a {
    color: var(--gold-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-khuyen-mai__promo-card-title a:hover,
.page-khuyen-mai__game-promo-card-title a:hover {
    color: var(--glow-color);
}

.page-khuyen-mai__promo-card-description,
.page-khuyen-mai__game-promo-card-description {
    color: var(--text-secondary);
    font-size: 0.95em;
    padding: 0 15px 20px;
}

/* How to Claim Section */
.page-khuyen-mai__how-to-claim-content {
    display: flex;
    gap: 40px;
    align-items: center;
    flex-wrap: wrap;
}

.page-khuyen-mai__guide-steps {
    flex: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.page-khuyen-mai__step-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
    text-align: left;
    position: relative;
    padding-left: 70px; /* Space for step number */
}

.page-khuyen-mai__step-number {
    position: absolute;
    left: 20px;
    top: 25px;
    background: var(--btn-gradient);
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4em;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(42, 209, 111, 0.3);
}

.page-khuyen-mai__step-title {
    font-size: 1.3em;
    color: var(--gold-color);
    margin-bottom: 8px;
}

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

.page-khuyen-mai__step-description a {
    color: var(--glow-color);
    text-decoration: none;
}

.page-khuyen-mai__step-description a:hover {
    text-decoration: underline;
}

.page-khuyen-mai__guide-image-wrapper {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-khuyen-mai__guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.4);
}

.page-khuyen-mai__cta-block {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background: var(--deep-green);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.page-khuyen-mai__cta-text {
    font-size: 1.4em;
    color: var(--text-main);
    margin-bottom: 25px;
    font-weight: bold;
}

/* Terms and Conditions */
.page-khuyen-mai__terms-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.page-khuyen-mai__terms-intro {
    color: var(--text-secondary);
    font-size: 1.1em;
    margin-bottom: 25px;
}

.page-khuyen-mai__terms-list {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.page-khuyen-mai__terms-list li {
    background-color: rgba(46, 122, 78, 0.1);
    border-left: 4px solid var(--primary-color);
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 6px;
    color: var(--text-main);
    font-size: 1em;
}

.page-khuyen-mai__terms-list li strong {
    color: var(--gold-color);
}

/* FAQ Section */
.page-khuyen-mai__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.page-khuyen-mai__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-khuyen-mai__faq-item[open] {
    box-shadow: 0 5px 25px rgba(0,0,0,0.3);
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2em;
    color: var(--gold-color);
    font-weight: bold;
    cursor: pointer;
    list-style: none; /* For <summary> */
    position: relative;
}

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

.page-khuyen-mai__faq-qtext {
    flex-grow: 1;
    text-align: left;
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.8em;
    line-height: 1;
    margin-left: 20px;
    color: var(--primary-color);
    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: 0 25px 20px;
    color: var(--text-secondary);
    font-size: 1em;
    line-height: 1.6;
}

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

/* General image styling to prevent small icons */
.page-khuyen-mai img {
    min-width: 200px;
    min-height: 200px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__section {
        padding: 30px 15px;
    }

    .page-khuyen-mai__section-title {
        font-size: 2em;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8em, 4vw, 2.8em);
    }

    .page-khuyen-mai__hero-content {
        margin-top: -80px;
        padding: 30px 15px;
    }

    .page-khuyen-mai__promo-grid,
    .page-khuyen-mai__game-promo-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

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

    .page-khuyen-mai__how-to-claim-content {
        flex-direction: column;
    }

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

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

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

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

    .page-khuyen-mai__section-title {
        font-size: 1.8em;
        margin-bottom: 25px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.5em, 6vw, 2.2em);
    }

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

    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
    }

    .page-khuyen-mai__hero-image {
        object-fit: contain !important; /* Contain for mobile */
        max-height: none !important;
        aspect-ratio: unset !important;
    }

    .page-khuyen-mai__hero-content {
        margin-top: -60px;
        padding: 25px 15px;
    }

    /* General image and container responsive for mobile */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        min-width: 200px !important;
        min-height: 200px !important;
    }
    
    .page-khuyen-mai__section,
    .page-khuyen-mai__promo-card,
    .page-khuyen-mai__game-promo-card,
    .page-khuyen-mai__how-to-claim-content,
    .page-khuyen-mai__guide-steps,
    .page-khuyen-mai__guide-image-wrapper,
    .page-khuyen-mai__cta-block,
    .page-khuyen-mai__terms-content,
    .page-khuyen-mai__faq-list,
    .page-khuyen-mai__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden;
    }

    /* Buttons and button containers responsive for mobile */
    .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 !important;
        margin-left: 0 !important;
        margin-bottom: 15px;
    }

    .page-khuyen-mai__hero-content .page-khuyen-mai__btn-primary {
        margin-bottom: 0;
    }

    .page-khuyen-mai__promo-card .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai__game-promo-card .page-khuyen-mai__btn-secondary {
        margin-left: 0 !important;
        margin-bottom: 0;
    }

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

    .page-khuyen-mai__guide-steps {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .page-khuyen-mai__step-item {
        padding: 20px 15px 20px 60px;
    }

    .page-khuyen-mai__step-number {
        left: 15px;
        top: 20px;
        width: 35px;
        height: 35px;
        font-size: 1.2em;
    }

    .page-khuyen-mai__game-specific-promos .page-khuyen-mai__section-description {
        padding: 0 15px;
    }

    .page-khuyen-mai__terms-list li {
        padding: 12px 15px;
    }

    .page-khuyen-mai__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
    }

    .page-khuyen-mai__faq-toggle {
        font-size: 1.5em;
    }

    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px;
    }

    /* Ensure no horizontal scroll for content areas */
    .page-khuyen-mai__promo-card-image,
    .page-khuyen-mai__game-promo-card-image {
        height: auto;
    }
}

@media (max-width: 480px) {
    .page-khuyen-mai__hero-content {
        margin-top: -40px;
    }

    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary {
        margin-left: 0;
        width: 100%;
        margin-bottom: 10px;
    }
    .page-khuyen-mai__hero-content .page-khuyen-mai__btn-primary {
        margin-bottom: 10px;
    }
}