/* style/index.css */

/* Biến CSS */
:root {
    --page-index-primary-color: #007BFF; /* Deep Blue */
    --page-index-secondary-color: #FFC107; /* Bright Gold/Orange */
    --page-index-text-dark: #333333;
    --page-index-text-light: #ffffff;
    --page-index-bg-light: #f8f9fa;
    --page-index-bg-dark: #212529;
    --page-index-border-color: #e0e0e0;
}

/* Reset cơ bản cho khu vực main */
.page-index {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--page-index-text-dark);
    background-color: var(--page-index-bg-light);
}

.page-index__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-index__section-title {
    font-size: 2.5em;
    color: var(--page-index-primary-color);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 10px;
}

.page-index__section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--page-index-secondary-color);
    border-radius: 2px;
}

.page-index__text-block {
    font-size: 1.1em;
    margin-bottom: 20px;
    text-align: justify;
}

.page-index__btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
}

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

.page-index__btn--primary:hover {
    background-color: darken(var(--page-index-primary-color), 10%);
    border-color: darken(var(--page-index-primary-color), 10%);
}

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

.page-index__btn--secondary:hover {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-text-light);
}

.page-index__btn--learn-more,
.page-index__btn--download-app,
.page-index__btn--contact {
    background-color: var(--page-index-secondary-color);
    color: var(--page-index-text-dark);
    border: 2px solid var(--page-index-secondary-color);
}

.page-index__btn--learn-more:hover,
.page-index__btn--download-app:hover,
.page-index__btn--contact:hover {
    background-color: darken(var(--page-index-secondary-color), 10%);
    border-color: darken(var(--page-index-secondary-color), 10%);
}

/* Hero Section */
.page-index__hero-section {
    background: linear-gradient(135deg, var(--page-index-primary-color) 0%, #3498db 100%);
    padding: 100px 0;
    color: var(--page-index-text-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-index__hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('[IMAGE:hero_main]') no-repeat center center/cover;
    opacity: 0.2;
    z-index: 0;
}

.page-index__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.page-index__hero-title {
    font-size: 3.8em;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--page-index-text-light);
}

.page-index__hero-description {
    font-size: 1.4em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.9);
}

.page-index__hero-actions .page-index__btn {
    margin: 0 10px;
    min-width: 180px;
}

/* About Section */
.page-index__about-section {
    padding: 80px 0;
    background-color: var(--page-index-bg-light);
    text-align: center;
}

.page-index__about-section .page-index__btn {
    margin-top: 30px;
}

/* Promotions Section */
.page-index__promotions-section {
    padding: 80px 0;
    background-color: #e9ecef;
    text-align: center;
}

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

.page-index__promo-item {
    background-color: var(--page-index-text-light);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 30px;
    transition: transform 0.3s ease;
}

.page-index__promo-item:hover {
    transform: translateY(-10px);
}

.page-index__promo-image {
    max-width: 100%;
    height: 150px;
    object-fit: contain;
    margin-bottom: 20px;
}

.page-index__promo-title {
    font-size: 1.8em;
    color: var(--page-index-primary-color);
    margin-bottom: 15px;
}

.page-index__promo-description {
    font-size: 1em;
    color: var(--page-index-text-dark);
    margin-bottom: 20px;
}

.page-index__promo-subtitle {
    font-size: 2em;
    color: var(--page-index-primary-color);
    margin-top: 50px;
    margin-bottom: 20px;
}

.page-index__promo-codes {
    list-style: none;
    padding: 0;
    margin: 0 auto 40px auto;
    max-width: 600px;
    text-align: left;
}

.page-index__promo-codes li {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-text-light);
    padding: 10px 20px;
    margin-bottom: 10px;
    border-radius: 5px;
    font-size: 1.1em;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Games Section */
.page-index__games-section {
    padding: 80px 0;
    background-color: var(--page-index-bg-dark);
    color: var(--page-index-text-light);
    text-align: center;
}

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

.page-index__games-section .page-index__text-block {
    color: rgba(255, 255, 255, 0.8);
}

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

.page-index__game-item {
    background-color: #343a40;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-index__game-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-index__game-image {
    max-width: 100%;
    height: 180px;
    object-fit: contain;
    margin-bottom: 20px;
    border-radius: 5px;
}

.page-index__game-title {
    font-size: 1.8em;
    color: var(--page-index-secondary-color);
    margin-bottom: 15px;
}

.page-index__game-description {
    font-size: 1em;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
}

.page-index__games-section .page-index__btn {
    margin-top: 50px;
}

/* User Experience Section */
.page-index__user-experience-section {
    padding: 80px 0;
    background-color: var(--page-index-bg-light);
}

.page-index__ux-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 50px;
    margin-top: 40px;
}

.page-index__ux-text {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
}

.page-index__ux-image-wrapper {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    text-align: center;
}

.page-index__ux-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Latest Articles Section */
.page-index__latest-articles-section {
    padding: 80px 0;
    background-color: #f1f3f5;
}

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

.page-index__article-card {
    background-color: var(--page-index-text-light);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-index__article-card:hover {
    transform: translateY(-10px);
}

.page-index__article-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.page-index__article-card h3 {
    padding: 20px 20px 10px;
    font-size: 1.4em;
    line-height: 1.4;
}

.page-index__article-card h3 a {
    color: var(--page-index-primary-color);
    text-decoration: none;
}

.page-index__article-card h3 a:hover {
    text-decoration: underline;
}

.page-index__article-date {
    font-size: 0.9em;
    color: #6c757d;
    padding: 0 20px;
    margin-bottom: 10px;
}

.page-index__article-excerpt {
    font-size: 1em;
    color: var(--page-index-text-dark);
    padding: 0 20px 20px;
    flex-grow: 1;
}

/* Guides Section */
.page-index__guides-section {
    padding: 80px 0;
    background-color: var(--page-index-primary-color);
    color: var(--page-index-text-light);
    text-align: center;
}

.page-index__guides-section .page-index__section-title {
    color: var(--page-index-text-light);
}

.page-index__guides-section .page-index__section-title::after {
    background-color: var(--page-index-secondary-color);
}

.page-index__guides-section .page-index__text-block {
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-index__guide-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.page-index__guide-list li {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-index__guide-list li:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.page-index__guide-list li a {
    display: block;
    padding: 15px 25px;
    color: var(--page-index-text-light);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
}

/* Contact Section */
.page-index__contact-section {
    padding: 80px 0;
    background-color: var(--page-index-bg-light);
    text-align: center;
}

.page-index__contact-info {
    font-size: 1.1em;
    margin-bottom: 15px;
    color: var(--page-index-text-dark);
}

.page-index__contact-section .page-index__btn {
    margin-top: 30px;
}

/* Conclusion Section */
.page-index__conclusion-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0056b3 0%, var(--page-index-primary-color) 100%);
    color: var(--page-index-text-light);
    text-align: center;
}

.page-index__conclusion-section .page-index__section-title {
    color: var(--page-index-text-light);
}

.page-index__conclusion-section .page-index__text-block {
    color: rgba(255, 255, 255, 0.9);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-index__conclusion-section .page-index__btn {
    margin-top: 50px;
    background-color: var(--page-index-secondary-color);
    color: var(--page-index-text-dark);
    border-color: var(--page-index-secondary-color);
}

.page-index__conclusion-section .page-index__btn:hover {
    background-color: darken(var(--page-index-secondary-color), 10%);
    border-color: darken(var(--page-index-secondary-color), 10%);
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-index__hero-title {
        font-size: 3em;
    }
    .page-index__hero-description {
        font-size: 1.2em;
    }
    .page-index__section-title {
        font-size: 2em;
    }
    .page-index__game-image {
        height: 150px;
    }
    .page-index__ux-content {
        flex-direction: column;
    }
    .page-index__ux-text,
    .page-index__ux-image-wrapper {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .page-index__hero-title {
        font-size: 2.5em;
    }
    .page-index__hero-description {
        font-size: 1.1em;
    }
    .page-index__hero-actions .page-index__btn {
        margin: 10px 0;
        width: 100%;
    }
    .page-index__promo-grid,
    .page-index__game-grid,
    .page-index__articles-grid {
        grid-template-columns: 1fr;
    }
    .page-index__section-title {
        font-size: 1.8em;
    }
    .page-index__promo-title,
    .page-index__game-title {
        font-size: 1.5em;
    }
    .page-index__article-card h3 {
        font-size: 1.2em;
    }
}

@media (max-width: 576px) {
    .page-index__hero-section,
    .page-index__about-section,
    .page-index__promotions-section,
    .page-index__games-section,
    .page-index__user-experience-section,
    .page-index__latest-articles-section,
    .page-index__guides-section,
    .page-index__contact-section,
    .page-index__conclusion-section {
        padding: 50px 0;
    }
    .page-index__hero-title {
        font-size: 2em;
    }
    .page-index__hero-description {
        font-size: 1em;
    }
    .page-index__section-title {
        font-size: 1.5em;
    }
    .page-index__btn {
        padding: 10px 20px;
        font-size: 0.9em;
    }
    .page-index__promo-codes li {
        font-size: 1em;
    }
}

/* Ensure color contrast for all text */
.page-index h1, .page-index h2, .page-index h3, .page-index p, .page-index li, .page-index a, .page-index strong {
    /* Default text color for light backgrounds */
    color: var(--page-index-text-dark);
}

.page-index__hero-section h1, .page-index__hero-section p, .page-index__hero-section a {
    /* Text color for dark hero section background */
    color: var(--page-index-text-light);
}

.page-index__games-section h2, .page-index__games-section p, .page-index__games-section h3, .page-index__games-section a {
    /* Text color for dark games section background */
    color: var(--page-index-text-light);
}

.page-index__games-section .page-index__game-title {
    color: var(--page-index-secondary-color);
}

.page-index__games-section .page-index__game-description {
    color: rgba(255, 255, 255, 0.7);
}

.page-index__guides-section h2, .page-index__guides-section p, .page-index__guides-section li a {
    /* Text color for dark guides section background */
    color: var(--page-index-text-light);
}

.page-index__conclusion-section h2, .page-index__conclusion-section p, .page-index__conclusion-section a {
    /* Text color for dark conclusion section background */
    color: var(--page-index-text-light);
}

.page-index__promo-codes li {
    background-color: var(--page-index-primary-color);
    color: var(--page-index-text-light);
}

.page-index__btn--primary, .page-index__btn--secondary:hover {
    color: var(--page-index-text-light);
}

.page-index__btn--secondary, .page-index__btn--learn-more, .page-index__btn--download-app, .page-index__btn--contact, .page-index__conclusion-section .page-index__btn {
    color: var(--page-index-text-dark);
}

/* Image width 100% for collected content CSS rules */
.page-index img {
    max-width: 100%;
    height: auto;
}