/* style/download.css */
.page-download {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f7f6;
}

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

.page-download__hero-section {
    background: linear-gradient(135deg, #1A237E 0%, #3949AB 100%); /* Chủ đạo: Xanh tím đậm */
    color: #fff;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-download__hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('[GALLERY:bg:abstract,pattern,geometric,dark_blue]');
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

.page-download__hero-title {
    font-size: 2.8em;
    margin-bottom: 20px;
    color: #FFC107; /* Phụ đạo: Vàng cam */
    position: relative;
    z-index: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-download__hero-description {
    font-size: 1.2em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.page-download__btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.page-download__btn--hero {
    background-color: #FFC107; /* Phụ đạo: Vàng cam */
    color: #1A237E; /* Chủ đạo: Xanh tím đậm */
    box-shadow: 0 5px 15px rgba(255, 193, 7, 0.4);
    position: relative;
    z-index: 1;
}

.page-download__btn--hero:hover {
    background-color: #e6b000;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 193, 7, 0.6);
}

.page-download__section {
    padding: 60px 0;
    background-color: #fff;
    border-bottom: 1px solid #eee;
}

.page-download__section--dark {
    background-color: #1A237E;
    color: #e0e0e0;
}

.page-download__section--dark .page-download__section-title {
    color: #FFC107;
}

.page-download__section-title {
    font-size: 2.2em;
    color: #1A237E;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.page-download__section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: #FFC107;
    margin: 15px auto 0;
    border-radius: 2px;
}

.page-download__text-content {
    font-size: 1.05em;
    margin-bottom: 20px;
    text-align: justify;
}

.page-download__feature-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.page-download__feature-list li {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    border-left: 4px solid #1A237E;
}

.page-download__feature-list li:hover {
    transform: translateY(-5px);
}

.page-download__feature-list li strong {
    color: #1A237E;
    font-size: 1.1em;
    display: block;
    margin-bottom: 10px;
}

.page-download__platform-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 60px;
}

.page-download__card {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    border: 1px solid #eee;
}

.page-download__section--dark .page-download__card {
    background-color: #2e3a8b; /* Nền card tối */
    color: #e0e0e0;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    border: 1px solid #3d4bb5;
}

.page-download__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.page-download__card-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.page-download__card-title {
    font-size: 1.6em;
    color: #1A237E;
    margin-bottom: 15px;
}

.page-download__section--dark .page-download__card-title {
    color: #FFC107;
}

.page-download__card-title a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.page-download__card-title a:hover {
    color: #FFC107;
}

.page-download__section--dark .page-download__card-title a:hover {
    color: #fff;
}

.page-download__card-description {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 25px;
    flex-grow: 1;
}

.page-download__section--dark .page-download__card-description {
    color: #ccc;
}

.page-download__btn--primary {
    background-color: #FFC107;
    color: #1A237E;
    margin-bottom: 10px;
    width: 100%;
    max-width: 200px;
    box-shadow: 0 3px 10px rgba(255, 193, 7, 0.3);
}

.page-download__btn--primary:hover {
    background-color: #e6b000;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 193, 7, 0.5);
}

.page-download__btn--secondary {
    background-color: transparent;
    color: #1A237E;
    border: 2px solid #1A237E;
    width: 100%;
    max-width: 200px;
}

.page-download__btn--secondary:hover {
    background-color: #1A237E;
    color: #fff;
    transform: translateY(-2px);
}

.page-download__section--dark .page-download__btn--secondary {
    color: #FFC107;
    border-color: #FFC107;
}

.page-download__section--dark .page-download__btn--secondary:hover {
    background-color: #FFC107;
    color: #1A237E;
}

.page-download__installation-guides {
    margin-top: 50px;
}

.page-download__sub-title {
    font-size: 1.8em;
    color: #1A237E;
    margin-top: 40px;
    margin-bottom: 25px;
    text-align: center;
}

.page-download__section--dark .page-download__sub-title {
    color: #FFC107;
}

.page-download__installation-steps {
    list-style: none;
    padding: 0;
    counter-reset: step-counter;
    margin-bottom: 40px;
}

.page-download__installation-steps li {
    counter-increment: step-counter;
    margin-bottom: 15px;
    padding-left: 40px;
    position: relative;
    font-size: 1.05em;
    color: #444;
}

.page-download__section--dark .page-download__installation-steps li {
    color: #d0d0d0;
}

.page-download__installation-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    background-color: #1A237E;
    color: #fff;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9em;
}

.page-download__installation-steps li strong {
    color: #1A237E;
}

.page-download__section--dark .page-download__installation-steps li strong {
    color: #FFC107;
}

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

.page-download__requirement-item {
    background-color: #f9f9f9;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border-top: 5px solid #FFC107;
}

.page-download__requirement-item .page-download__sub-title {
    font-size: 1.5em;
    color: #1A237E;
    margin-top: 0;
    text-align: left;
}

.page-download__list {
    list-style: disc;
    padding-left: 20px;
    margin-top: 15px;
    color: #555;
}

.page-download__list li {
    margin-bottom: 8px;
}

.page-download__list li strong {
    color: #1A237E;
}

.page-download__section--promo {
    background: #f0f8ff;
}

.page-download__promo-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.page-download__promo-list li {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-left: 4px solid #FFC107;
    font-size: 1.05em;
}

.page-download__promo-list li strong {
    color: #1A237E;
}

.page-download__promo-banner {
    background: linear-gradient(90deg, #1A237E 0%, #3949AB 100%);
    border-radius: 15px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-top: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.page-download__promo-banner .page-download__promo-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(255, 193, 7, 0.5));
}

.page-download__promo-banner h3 {
    color: #FFC107;
    font-size: 2em;
    margin-bottom: 15px;
}

.page-download__promo-banner p {
    font-size: 1.1em;
    margin-bottom: 25px;
    max-width: 700px;
}

.page-download__btn--large {
    padding: 18px 40px;
    font-size: 1.2em;
    background-color: #FFC107;
    color: #1A237E;
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.4);
}

.page-download__btn--large:hover {
    background-color: #e6b000;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 193, 7, 0.6);
}

.page-download__faq {
    margin-top: 40px;
}

.page-download__faq-item {
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-download__faq-question {
    padding: 18px 25px;
    background-color: #1A237E;
    color: #fff;
    cursor: pointer;
    margin: 0;
    font-size: 1.2em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
    position: relative;
}

.page-download__faq-question::after {
    content: '+';
    font-size: 1.5em;
    font-weight: bold;
    transition: transform 0.3s ease;
    color: #FFC107;
}

.page-download__faq-question.active::after {
    content: '-';
    transform: rotate(180deg);
}

.page-download__faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    background-color: #fff;
    color: #444;
    font-size: 1.05em;
}

.page-download__faq-answer.active {
    max-height: 200px; /* Adjust based on content */
    padding: 15px 25px 25px;
}

.page-download__section--cta {
    background: linear-gradient(45deg, #1A237E, #3F51B5);
    color: #fff;
    text-align: center;
    padding: 80px 0;
    margin-top: 50px;
}

.page-download__section--cta .page-download__section-title {
    color: #FFC107;
}

.page-download__section--cta .page-download__text-content {
    color: #e0e0e0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 30px;
}

/* Floating Promotion Menu */
.page-download__floating-promo {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.page-download__floating-promo-toggle {
    background-color: #FFC107; /* Vàng cam */
    color: #1A237E; /* Xanh tím đậm */
    border: none;
    padding: 10px 15px;
    border-radius: 8px 0 0 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1em;
    box-shadow: -3px 0 10px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease;
    line-height: 1.2;
    text-align: center;
}

.page-download__floating-promo-toggle:hover {
    background-color: #e6b000;
}

.page-download__floating-promo-content {
    background-color: #1A237E; /* Xanh tím đậm */
    color: #fff;
    padding: 15px;
    border-radius: 8px 0 0 8px;
    box-shadow: -3px 0 10px rgba(0, 0, 0, 0.2);
    margin-top: 10px;
    width: 220px;
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease-out, opacity 0.3s ease-out, visibility 0.3s ease-out;
}

.page-download__floating-promo-content.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

.page-download__floating-promo-content p {
    font-size: 0.95em;
    margin-bottom: 15px;
    color: #e0e0e0;
}

.page-download__btn--small {
    padding: 10px 20px;
    font-size: 0.9em;
    border-radius: 25px;
    background-color: #FFC107;
    color: #1A237E;
    display: block;
    width: fit-content;
    margin: 0 auto;
}

.page-download__btn--small:hover {
    background-color: #e6b000;
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-download__hero-title {
        font-size: 2em;
    }

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

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

    .page-download__feature-list,
    .page-download__platform-cards,
    .page-download__requirements-grid,
    .page-download__promo-list {
        grid-template-columns: 1fr;
    }

    .page-download__card {
        padding: 25px;
    }

    .page-download__installation-steps li {
        padding-left: 35px;
    }

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

    .page-download__faq-answer.active {
        padding: 10px 20px 20px;
    }

    .page-download__promo-banner {
        padding: 20px;
    }

    .page-download__promo-banner h3 {
        font-size: 1.5em;
    }

    .page-download__promo-banner p {
        font-size: 1em;
    }

    .page-download__floating-promo-content {
        width: 180px;
        padding: 10px;
    }

    .page-download__floating-promo-content p {
        font-size: 0.85em;
    }

    .page-download__btn--small {
        font-size: 0.8em;
        padding: 8px 15px;
    }
}

@media (max-width: 480px) {
    .page-download__hero-title {
        font-size: 1.6em;
    }

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

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

    .page-download__btn--hero,
    .page-download__btn--large {
        padding: 12px 25px;
        font-size: 1em;
    }

    .page-download__card-title {
        font-size: 1.4em;
    }
}