/* style/index.css */

/* Biến CSS cho màu sắc */
:root {
    --primary-color: #007bff;
    --secondary-color: #ffc107;
    --text-color-dark-bg: #ffffff;
    --text-color-light-bg: #333333;
    --background-dark: #121212;
    --background-light: #f8f9fa;
    --card-bg-dark-mode: rgba(255, 255, 255, 0.08);
    --border-color-dark-mode: rgba(255, 255, 255, 0.15);
}

/* Base styles for the specific page */
.page-index {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color-dark-bg); /* Default text color for dark body background */
    background-color: var(--background-dark); /* Inherits from shared.css body */
}

.page-index h1, .page-index h2, .page-index h3, .page-index h4, .page-index h5, .page-index h6 {
    color: var(--text-color-dark-bg);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.page-index a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-index a:hover {
    color: var(--secondary-color);
}

/* --- Fixed Navbar Spacing --- */
/* This ensures content is not hidden behind a fixed header */
.page-index__video-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    padding-top: 10px; /* Desktop: Adjust based on actual fixed header height */
}

/* --- Video Section --- */
.page-index__video-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-index__video-link {
    display: block;
    text-decoration: none;
    position: relative;
    width: 100%;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__video-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-index__video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    background-color: #000; /* Fallback for video loading */
}

.page-index__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
    object-fit: cover;
    pointer-events: none; /* Prevents video controls from blocking click event */
}

.page-index__video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1;
}

.page-index__video-link:hover .page-index__video-overlay {
    opacity: 1;
}

.page-index__video-click-hint {
    color: #ffffff;
    font-size: 18px;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    background: rgba(0, 123, 255, 0.8);
    border-radius: 5px;
    white-space: nowrap;
    text-align: center;
}

.page-index__video-cta {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.page-index__play-now-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--primary-color);
    color: var(--text-color-dark-bg);
    text-decoration: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border: none;
    cursor: pointer;
    white-space: nowrap; /* Prevent text wrapping initially */
}

.page-index__play-now-button:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.page-index__play-now-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* --- H1 Title Section --- */
.page-index__title-section {
    padding: 80px 20px;
    text-align: center;
    background: var(--background-dark);
    color: var(--text-color-dark-bg);
}

.page-index__dark-section {
    background: var(--background-dark);
    color: var(--text-color-dark-bg);
}

.page-index__light-bg {
    background: var(--background-light);
    color: var(--text-color-light-bg);
}

.page-index__title-container {
    max-width: 900px;
    margin: 0 auto;
}

.page-index__main-title {
    font-size: 3.2em;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color-dark-bg);
}

.page-index__title-description {
    font-size: 1.2em;
    margin-bottom: 40px;
    color: #cccccc;
}

.page-index__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-index__cta-button {
    display: inline-block;
    padding: 15px 35px;
    font-size: 1.1em;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    white-space: nowrap; /* Prevent text wrapping initially */
}

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

.page-index__btn-primary:hover {
    background: #0056b3;
    border-color: #0056b3;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

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

.page-index__btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-color-dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* --- FAQ Section --- */
.page-index__faq-section {
    padding: 80px 20px;
    background: var(--background-light);
    color: var(--text-color-light-bg);
}

.page-index__faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.page-index__faq-title {
    font-size: 2.5em;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-color-light-bg);
}

.page-index__faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.page-index__faq-item {
    margin-bottom: 10px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-index__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    position: relative;
}

.page-index__faq-question:hover {
    background: #f5f5f5;
    border-color: #d0d0d0;
}

.page-index__faq-question h3 {
    margin: 0;
    padding: 0;
    flex: 1;
    font-size: 1.15em;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-color-light-bg);
    pointer-events: none; /* Prevents h3 from blocking click event on question div */
}

.page-index__faq-toggle {
    font-size: 28px;
    font-weight: bold;
    line-height: 1;
    color: #666;
    transition: transform 0.3s ease, color 0.3s ease;
    flex-shrink: 0;
    margin-left: 15px;
    pointer-events: none; /* Prevents toggle icon from blocking click event on question div */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
}

.page-index__faq-item.active .page-index__faq-toggle {
    transform: rotate(45deg); /* Change to a cross or simply rotate */
    color: var(--primary-color);
}

.page-index__faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
    padding: 0 25px;
    opacity: 0;
    background: #fcfcfc;
    color: var(--text-color-light-bg);
    border-top: none;
    border-radius: 0 0 8px 8px;
}

.page-index__faq-item.active .page-index__faq-answer {
    max-height: 2000px !important; /* Sufficiently large to contain any content */
    padding: 20px 25px !important;
    opacity: 1;
    border: 1px solid #e0e0e0;
    border-top: none;
}

/* --- Brand Section --- */
.page-index__brand-section {
    padding: 80px 20px;
    background: var(--background-dark);
    color: var(--text-color-dark-bg);
    text-align: center;
}

.page-index__brand-container {
    max-width: 1200px;
    margin: 0 auto;
}

.page-index__brand-title {
    font-size: 2.8em;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color-dark-bg);
}

.page-index__brand-intro {
    font-size: 1.1em;
    margin-bottom: 50px;
    color: #cccccc;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-index__brand-item {
    background: var(--card-bg-dark-mode); /* Semi-transparent dark background */
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color-dark-mode);
}

.page-index__brand-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.page-index__brand-item-image {
    width: 100%; /* Ensure image fills card width */
    max-width: 250px; /* Max width for images inside cards */
    height: auto;
    margin-bottom: 20px;
    border-radius: 8px;
    object-fit: cover;
}

.page-index__brand-item h3 {
    font-size: 1.5em;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color-dark-bg);
}

.page-index__brand-item p {
    font-size: 0.95em;
    color: #b0b0b0;
}

/* --- Blog Section --- */
.page-index__blog-section {
    padding: 80px 20px;
    background: var(--background-light);
    color: var(--text-color-light-bg);
    text-align: center;
}

.page-index__blog-container {
    max-width: 1200px;
    margin: 0 auto;
}

.page-index__blog-title {
    font-size: 2.8em;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color-light-bg);
}

.page-index__blog-description {
    font-size: 1.1em;
    margin-bottom: 50px;
    color: #555555;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-index__blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-index__blog-item {
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: left;
    border: 1px solid #e0e0e0;
}

.page-index__blog-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-index__blog-item-image {
    width: 100%;
    height: 200px; /* Fixed height for blog images */
    object-fit: cover;
    border-bottom: 1px solid #eee;
}

.page-index__blog-link {
    display: block;
    padding: 20px;
    color: var(--text-color-light-bg);
}

.page-index__blog-link:hover {
    color: var(--primary-color);
}

.page-index__blog-item-title {
    font-size: 1.3em;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--text-color-light-bg);
}

.page-index__blog-item:hover .page-index__blog-item-title {
    color: var(--primary-color);
}

.page-index__blog-item-excerpt {
    font-size: 0.95em;
    color: #666666;
    margin-bottom: 15px;
}

.page-index__blog-item-date {
    font-size: 0.85em;
    color: #999999;
    display: block;
}

.page-index__view-all-blogs {
    margin-top: 30px;
}

/* --- General Button Styles for Blog Section --- */
.page-index__btn-primary {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1em;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    background: var(--primary-color);
    color: var(--text-color-dark-bg);
    border: 2px solid var(--primary-color);
    white-space: nowrap;
}

.page-index__btn-primary:hover {
    background: #0056b3;
    border-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .page-index__main-title {
        font-size: 2.8em;
    }
    .page-index__faq-title, .page-index__brand-title, .page-index__blog-title {
        font-size: 2.2em;
    }
    .page-index__brand-item-image {
        max-width: 200px;
    }
}

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

    /* Fixed Navbar Spacing for Mobile */
    .page-index__video-section {
        padding-top: 10px !important; /* Mobile: Adjust based on actual fixed header height */
        padding-left: 15px;
        padding-right: 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    .page-index__video-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 0;
        padding-right: 0;
        overflow: hidden !important;
    }
    
    .page-index__video-link {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .page-index__video-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        border-radius: 4px;
        overflow: hidden !important;
    }
    
    .page-index__video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        border-radius: 4px;
        object-fit: contain; /* Use contain to ensure video is fully visible */
    }

    .page-index__video-click-hint {
        font-size: 14px !important;
        padding: 8px 16px !important;
    }

    .page-index__video-cta {
        margin-top: 20px;
        padding-left: 15px;
        padding-right: 15px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .page-index__play-now-button {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 30px !important;
        font-size: 16px !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-index__title-section,
    .page-index__faq-section,
    .page-index__brand-section,
    .page-index__blog-section {
        padding: 60px 15px;
    }

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

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

    .page-index__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .page-index__cta-button {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 25px !important;
        font-size: 1em !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-index__faq-title, .page-index__brand-title, .page-index__blog-title {
        font-size: 1.8em;
    }

    .page-index__faq-question {
        padding: 15px;
        flex-wrap: wrap;
    }
    
    .page-index__faq-question h3 {
        font-size: 15px;
        margin-bottom: 0;
        width: calc(100% - 40px);
    }
    
    .page-index__faq-toggle {
        margin-left: 10px;
        width: 24px;
        height: 24px;
        font-size: 20px;
    }
    
    .page-index__faq-answer {
        padding: 0 15px;
    }
    
    .page-index__faq-item.active .page-index__faq-answer {
        padding: 15px !important;
    }

    .page-index__brand-grid, .page-index__blog-list {
        grid-template-columns: 1fr;
    }

    .page-index__brand-item-image,
    .page-index__blog-item-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    .page-index__brand-item, .page-index__blog-item {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .page-index__main-title {
        font-size: 1.8em;
    }
    .page-index__faq-title, .page-index__brand-title, .page-index__blog-title {
        font-size: 1.6em;
    }
    .page-index__play-now-button {
        padding: 10px 25px !important;
        font-size: 15px !important;
    }
}

/* Ensure all images are responsive and do not overflow */
.page-index img {
    max-width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .page-index img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    .page-index__section,
    .page-index__card,
    .page-index__container,
    .page-index__brand-grid,
    .page-index__blog-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 0px !important; /* Remove container padding if section has it */
        padding-right: 0px !important;
        overflow: hidden !important;
    }
    .page-index__brand-item,
    .page-index__blog-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
}