/* style/index.css */

/* Biến CSS */
:root {
    --page-index-primary-color: #1A237E; /* Dark Indigo */
    --page-index-secondary-color: #FFC107; /* Amber */
    --page-index-text-light: #FFFFFF; /* White */
    --page-index-text-dark: #333333; /* Dark Gray for readability on light backgrounds */
    --page-index-background-light: #F5F5F5; /* Light Gray */
    --page-index-background-dark: #0F144D; /* Darker variant of primary */
    --page-index-accent-light: #E5DC81; /* Complementary to primary */
    --page-index-accent-dark: #997404; /* Darker variant of secondary */
    --page-index-border-color: #CCCCCC;
}

/* Đảm bảo độ tương phản màu sắc */
.page-index {
    color: var(--page-index-text-dark); /* Default text color on light backgrounds */
    background-color: var(--page-index-background-light);
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.page-index__main-title, .page-index__section-title {
    color: var(--page-index-primary-color);
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.5em;
    font-weight: bold;
    line-height: 1.2;
}

.page-index__section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
    font-size: 1.1em;
    color: #555;
}

/* Hero Section */
.page-index__hero-section {
    background: linear-gradient(135deg, var(--page-index-primary-color) 0%, var(--page-index-background-dark) 100%);
    color: var(--page-index-text-light);
    padding: 80px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 40px;
}

.page-index__hero-content {
    max-width: 900px;
}

.page-index__main-title {
    color: var(--page-index-secondary-color);
    font-size: 3.2em;
    margin-bottom: 20px;
}

.page-index__hero-description {
    font-size: 1.3em;
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.page-index__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;
    white-space: nowrap;
}

.page-index__btn--primary {
    background-color: var(--page-index-secondary-color);
    color: var(--page-index-primary-color);
    border: 2px solid var(--page-index-secondary-color);
}

.page-index__btn--primary:hover {
    background-color: var(--page-index-accent-dark);
    border-color: var(--page-index-accent-dark);
    transform: translateY(-3px);
}

.page-index__btn--secondary {
    background-color: transparent;
    color: var(--page-index-secondary-color);
    border: 2px solid var(--page-index-secondary-color);
}

.page-index__btn--secondary:hover {
    background-color: var(--page-index-secondary-color);
    color: var(--page-index-primary-color);
    transform: translateY(-3px);
}

.page-index__btn--tertiary {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-secondary-color);
    border: 2px solid var(--page-index-secondary-color);
}

.page-index__btn--tertiary:hover {
    background-color: var(--page-index-background-dark);
    transform: translateY(-3px);
}

.page-index__hero-image-wrapper {
    margin-top: 40px;
}

.page-index__hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* General Section Styling */
.page-index__section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-index__section:nth-child(odd) {
    background-color: var(--page-index-background-light);
}

.page-index__section:nth-child(even) {
    background-color: #FFFFFF;
}

.page-index__section-title {
    color: var(--page-index-primary-color);
    font-size: 2.2em;
    margin-bottom: 25px;
}

.page-index__content-wrapper {
    display: flex;
    gap: 40px;
    align-items: center;
}

.page-index__text-content {
    flex: 1;
}

.page-index__text-content p {
    margin-bottom: 15px;
    font-size: 1.05em;
    color: var(--page-index-text-dark);
}

.page-index__image-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-index__image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* About Section */
.page-index__about-section .page-index__content-wrapper {
    flex-direction: row;
}

/* Games Section */
.page-index__games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-index__game-card {
    background-color: #FFFFFF;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    text-align: center;
    padding-bottom: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-index__game-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 15px;
}

.page-index__game-title {
    font-size: 1.6em;
    color: var(--page-index-primary-color);
    margin-bottom: 10px;
    padding: 0 15px;
}

.page-index__game-description {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 20px;
    padding: 0 15px;
}

.page-index__btn--play {
    background-color: var(--page-index-secondary-color);
    color: var(--page-index-primary-color);
    border: none;
    padding: 10px 25px;
    font-size: 1em;
    margin-top: auto; /* Push button to bottom */
}

.page-index__btn--play:hover {
    background-color: var(--page-index-accent-dark);
}

.page-index__view-all-games {
    text-align: center;
    margin-top: 50px;
}

/* Promotions Section */
.page-index__promotions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-index__promo-card {
    background-color: #FFFFFF;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    text-align: center;
    padding-bottom: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-index__promo-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    margin-bottom: 15px;
}

.page-index__promo-title {
    font-size: 1.5em;
    color: var(--page-index-primary-color);
    margin-bottom: 10px;
    padding: 0 15px;
}

.page-index__promo-description {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 20px;
    padding: 0 15px;
}

.page-index__btn--claim {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-secondary-color);
    border: none;
    padding: 10px 25px;
    font-size: 1em;
    margin-top: auto;
}

.page-index__btn--claim:hover {
    background-color: var(--page-index-background-dark);
}

.page-index__view-all-promos {
    text-align: center;
    margin-top: 50px;
}

/* Guides Section */
.page-index__guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-index__guide-card {
    background-color: #FFFFFF;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 25px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-index__guide-title {
    font-size: 1.4em;
    color: var(--page-index-primary-color);
    margin-bottom: 15px;
}

.page-index__guide-description {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 20px;
}

.page-index__btn--guide {
    background-color: var(--page-index-secondary-color);
    color: var(--page-index-primary-color);
    border: none;
    padding: 10px 20px;
    font-size: 0.95em;
    margin-top: auto;
}

.page-index__btn--guide:hover {
    background-color: var(--page-index-accent-dark);
}

/* Why Choose Us Section */
.page-index__why-choose-us-section .page-index__content-wrapper {
    flex-direction: row-reverse;
    align-items: flex-start;
}

.page-index__feature-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.page-index__feature-list li {
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="%23FFC107"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg>') no-repeat left center;
    background-size: 20px;
    padding-left: 30px;
    margin-bottom: 15px;
    font-size: 1.05em;
    color: var(--page-index-text-dark);
}

.page-index__feature-list li strong {
    color: var(--page-index-primary-color);
}

/* Sub-pages Section */
.page-index__sub-pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-index__sub-page-card {
    background-color: #FFFFFF;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: left;
}

.page-index__sub-page-title {
    font-size: 1.3em;
    margin-bottom: 10px;
}

.page-index__sub-page-title a {
    color: var(--page-index-primary-color);
    text-decoration: none;
}

.page-index__sub-page-title a:hover {
    text-decoration: underline;
}

.page-index__sub-page-description {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 20px;
}

.page-index__btn--sub-page {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-text-light);
    border: none;
    padding: 10px 20px;
    font-size: 0.9em;
    margin-top: auto;
    align-self: flex-start;
}

.page-index__btn--sub-page:hover {
    background-color: var(--page-index-background-dark);
}

/* Final CTA Section */
.page-index__final-cta-section {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-text-light);
    text-align: center;
    padding: 80px 20px;
}

.page-index__final-cta-section .page-index__section-title {
    color: var(--page-index-secondary-color);
}

.page-index__final-cta-section .page-index__section-description {
    color: var(--page-index-text-light);
    margin-bottom: 50px;
}

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

/* Responsive Design */
@media (max-width: 992px) {
    .page-index__hero-section {
        flex-direction: column;
        text-align: center;
    }

    .page-index__main-title {
        font-size: 2.5em;
    }

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

    .page-index__content-wrapper {
        flex-direction: column;
    }

    .page-index__text-content, .page-index__image-content {
        flex: none;
        width: 100%;
    }

    .page-index__why-choose-us-section .page-index__content-wrapper {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .page-index__main-title {
        font-size: 2em;
    }

    .page-index__section-title {
        font-size: 1.8em;
    }

    .page-index__hero-cta-group, .page-index__final-cta-group {
        flex-direction: column;
        align-items: center;
    }

    .page-index__btn {
        width: 80%;
        max-width: 300px;
    }

    .page-index__games-grid, .page-index__promotions-grid, .page-index__guides-grid, .page-index__sub-pages-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-index__hero-section, .page-index__section, .page-index__final-cta-section {
        padding: 40px 15px;
    }

    .page-index__main-title {
        font-size: 1.8em;
    }

    .page-index__section-title {
        font-size: 1.5em;
    }

    .page-index__hero-description, .page-index__section-description {
        font-size: 0.95em;
    }

    .page-index__btn {
        padding: 12px 20px;
        font-size: 1em;
    }
}