/* style/khuyen-mai.css */

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

.page-khuyen-mai {
    font-family: Arial, sans-serif;
    color: var(--text-main-color); /* Body background is dark, so text is light */
    background-color: var(--background-color);
}

.page-khuyen-mai__dark-bg {
    background-color: var(--background-color);
    color: var(--text-main-color);
}

.page-khuyen-mai__card {
    background-color: var(--card-bg-color);
    color: var(--text-main-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__section-title {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--gold-color);
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-khuyen-mai__section-description {
    font-size: 1.1em;
    color: var(--text-secondary-color);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.page-khuyen-mai__content-area {
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
}

.page-khuyen-mai__center-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai a[class*="btn"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    word-wrap: normal;
    box-sizing: border-box;
    max-width: 100%;
}

.page-khuyen-mai__btn-primary {
    background: var(--button-gradient);
    color: var(--text-main-color);
    border: 2px solid var(--primary-color);
}

.page-khuyen-mai__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--glow-color), 0.3);
}

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

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-main-color);
    box-shadow: 0 6px 20px rgba(var(--primary-color), 0.3);
}

.page-khuyen-mai__btn-small {
    padding: 10px 20px;
    font-size: 0.9em;
}

.page-khuyen-mai__btn-large {
    padding: 16px 32px;
    font-size: 1.1em;
}

/* Image styles */
.page-khuyen-mai img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* HERO Section */
.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 60px;
    position: relative;
    overflow: hidden;
}

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

.page-khuyen-mai__hero-content {
    flex: 1;
    min-width: 300px;
    text-align: left;
}

.page-khuyen-mai__hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--gold-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-khuyen-mai__hero-description {
    font-size: 1.15em;
    color: var(--text-secondary-color);
    margin-bottom: 30px;
    line-height: 1.6;
}

.page-khuyen-mai__hero-cta-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.page-khuyen-mai__hero-image {
    flex: 1;
    min-width: 400px;
    text-align: center;
}

.page-khuyen-mai__hero-main-image {
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* Intro Section */
.page-khuyen-mai__intro-section {
    padding: 60px 0;
}

.page-khuyen-mai__intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__intro-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-khuyen-mai__icon-box-media {
    width: 240px;
    height: 240px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 0 8px rgba(var(--primary-color), 0.3);
}

.page-khuyen-mai__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%; /* Ensure image is also circular */
}

.page-khuyen-mai__intro-item-title {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--gold-color);
    margin-bottom: 10px;
}

.page-khuyen-mai__intro-item-text {
    font-size: 1em;
    color: var(--text-secondary-color);
    line-height: 1.5;
}

/* Promotions Grid Section */
.page-khuyen-mai__promotions-grid-section {
    padding: 60px 0;
}

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

.page-khuyen-mai__promo-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    text-align: left;
}

.page-khuyen-mai__promo-image {
    width: 100%;
    height: 220px; /* Fixed height for consistency */
    object-fit: cover;
    border-bottom: 1px solid var(--divider-color);
}

.page-khuyen-mai__promo-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page-khuyen-mai__promo-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.4;
}

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

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

.page-khuyen-mai__promo-description {
    font-size: 0.95em;
    color: var(--text-secondary-color);
    line-height: 1.5;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* How to Claim Section */
.page-khuyen-mai__how-to-claim-section {
    padding: 60px 0;
}

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

.page-khuyen-mai__step-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.page-khuyen-mai__step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--button-gradient);
    color: var(--text-main-color);
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 20px;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 0 6px rgba(var(--primary-color), 0.3);
}

.page-khuyen-mai__step-title {
    font-size: 1.4em;
    font-weight: bold;
    color: var(--gold-color);
    margin-bottom: 10px;
}

.page-khuyen-mai__step-text {
    font-size: 1em;
    color: var(--text-secondary-color);
    line-height: 1.5;
}

.page-khuyen-mai__center-cta {
    text-align: center;
    margin-top: 50px;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
    padding: 60px 0;
}

.page-khuyen-mai__faq-list {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.page-khuyen-mai__faq-item {
    cursor: pointer;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg-color);
    border-radius: 12px;
    overflow: hidden;
    color: var(--text-main-color);
}

.page-khuyen-mai__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    font-size: 1.15em;
    font-weight: bold;
    color: var(--gold-color);
    background-color: var(--deep-green-color);
    border-bottom: 1px solid var(--divider-color);
    list-style: none; /* For details/summary */
}

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

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

.page-khuyen-mai__faq-toggle {
    font-size: 1.5em;
    font-weight: normal;
    margin-left: 15px;
    color: var(--glow-color);
}

.page-khuyen-mai__faq-answer {
    padding: 0 24px 20px;
    font-size: 1em;
    color: var(--text-secondary-color);
    line-height: 1.6;
}

/* Final CTA Section */
.page-khuyen-mai__final-cta-section {
    padding: 80px 0;
}

.page-khuyen-mai__final-cta-section .page-khuyen-mai__section-title {
    margin-bottom: 20px;
}

.page-khuyen-mai__final-cta-section .page-khuyen-mai__section-description {
    margin-bottom: 40px;
}

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

/* Media Queries */

/* Desktop/Tablet (up to 1024px) */
@media (max-width: 1024px) {
    .page-khuyen-mai__hero-container {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

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

    .page-khuyen-mai__hero-cta-group {
        justify-content: center;
    }

    .page-khuyen-mai__hero-image {
        min-width: unset;
    }

    .page-khuyen-mai__intro-grid,
    .page-khuyen-mai__promotions-grid,
    .page-khuyen-mai__steps-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

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

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

    .page-khuyen-mai__faq-question {
        font-size: 1.05em;
    }
}

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

    .page-khuyen-mai__content-area,
    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px;
    }

    .page-khuyen-mai__hero-container {
        flex-direction: column;
        gap: 20px;
        padding: 20px 15px;
    }

    .page-khuyen-mai__hero-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
        margin-bottom: 15px;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1em;
        margin-bottom: 20px;
    }

    .page-khuyen-mai__hero-cta-group {
        flex-direction: column;
        gap: 10px;
    }

    .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 !important;
        padding-right: 15px !important;
    }

    .page-khuyen-mai__cta-buttons,
    .page-khuyen-mai__button-group,
    .page-khuyen-mai__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        flex-wrap: wrap !important;
        gap: 10px;
        flex-direction: column;
    }

    .page-khuyen-mai__hero-image {
        min-width: unset;
    }

    .page-khuyen-mai__hero-main-image {
        width: 100% !important;
        height: auto !important;
    }

    /* Intro Section Mobile */
    .page-khuyen-mai__intro-section {
        padding: 40px 0;
    }

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

    .page-khuyen-mai__section-description {
        font-size: 0.95em;
        margin-bottom: 30px;
    }

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

    .page-khuyen-mai__icon-box-media {
        width: 200px;
        height: 200px;
        margin-bottom: 15px;
    }

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

    /* Promotions Grid Section Mobile */
    .page-khuyen-mai__promotions-grid-section {
        padding: 40px 0;
    }

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

    .page-khuyen-mai__promo-card {
        padding: 15px;
    }

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

    .page-khuyen-mai__promo-title {
        font-size: 1.1em;
    }

    .page-khuyen-mai__promo-description {
        font-size: 0.9em;
    }

    /* How to Claim Section Mobile */
    .page-khuyen-mai__how-to-claim-section {
        padding: 40px 0;
    }

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

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

    .page-khuyen-mai__step-number {
        width: 50px;
        height: 50px;
        font-size: 1.8em;
        margin-bottom: 15px;
    }

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

    .page-khuyen-mai__step-text {
        font-size: 0.95em;
    }

    .page-khuyen-mai__center-cta {
        margin-top: 30px;
    }

    /* FAQ Section Mobile */
    .page-khuyen-mai__faq-section {
        padding: 40px 0;
    }

    .page-khuyen-mai__faq-question {
        padding: 15px 20px;
        font-size: 1em;
    }

    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px;
        font-size: 0.95em;
    }

    /* Final CTA Section Mobile */
    .page-khuyen-mai__final-cta-section {
        padding: 60px 0;
    }

    .page-khuyen-mai__final-cta-section .page-khuyen-mai__section-title {
        font-size: 1.8em;
    }

    .page-khuyen-mai__final-cta-section .page-khuyen-mai__section-description {
        font-size: 0.95em;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__cta-group {
        flex-direction: column;
    }

    /* General image responsiveness for content area */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
}