/* style/download.css */

:root {
    --primary-color: #007bff;
    --secondary-color: #ffc107;
    --text-light: #ffffff;
    --text-dark: #333333;
    --background-dark: #0d0d1a;
    --background-light: #f8f9fa;
    --card-bg-dark-mode: rgba(255, 255, 255, 0.08);
    --border-color: #343a40;
    --button-hover-primary: #0056b3;
    --button-hover-secondary: #e0a800;
}

.page-download {
    color: var(--text-light); /* Body background is dark, so text should be light */
    background-color: var(--background-dark);
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
}

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

.page-download__section-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 20px;
    padding-top: 40px;
}

.page-download__section-description {
    font-size: 18px;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-download__card {
    background-color: var(--card-bg-dark-mode);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.page-download__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-download__hero-section {
    background: linear-gradient(135deg, #0d0d1a, #1a1a2e);
    padding: 120px 0 80px; /* Desktop padding-top for fixed header */
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-download__main-title {
    font-size: 48px;
    color: var(--secondary-color);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 900;
}

.page-download__description {
    font-size: 20px;
    color: var(--text-light);
    max-width: 900px;
    margin: 0 auto 40px;
}

.page-download__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.page-download__cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: none;
    cursor: pointer;
    white-space: nowrap; /* Prevent text wrapping by default */
    word-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

.page-download__btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.page-download__btn-primary:hover {
    background-color: var(--button-hover-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.page-download__btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-dark);
}

.page-download__btn-secondary:hover {
    background-color: var(--button-hover-secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.page-download__button-icon {
    width: 32px;
    height: 32px;
    margin-right: 10px;
    object-fit: contain;
    flex-shrink: 0;
}

.page-download__small-text {
    font-size: 16px;
    color: #cccccc;
    margin-top: 20px;
    margin-bottom: 15px;
}

.page-download__qr-code-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.page-download__qr-code {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    object-fit: cover;
}

.page-download__benefits-section {
    padding: 80px 0;
    background-color: var(--background-dark);
}

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

.page-download__benefit-item {
    text-align: center;
}

.page-download__benefit-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    object-fit: contain;
}

.page-download__benefit-title {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-download__benefit-text {
    font-size: 16px;
    color: #cccccc;
}

.page-download__steps-section {
    padding: 80px 0;
    background-color: #1a1a2e;
}

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

.page-download__step-item {
    text-align: center;
}

.page-download__step-number {
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-download__step-title {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.page-download__step-text {
    font-size: 16px;
    color: #cccccc;
}

.page-download__app-features-section {
    padding: 80px 0;
    background-color: var(--background-dark);
}

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

.page-download__feature-item {
    text-align: center;
}

.page-download__feature-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.page-download__feature-title {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-download__feature-text {
    font-size: 16px;
    color: #cccccc;
}

.page-download__faq-section {
    padding: 80px 0;
    background-color: #1a1a2e;
}

.page-download__faq-list {
    max-width: 800px;
    margin: 0 auto;
}

/* FAQ容器样式 */
.page-download__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

/* FAQ默认状态 - 答案隐藏 */
.page-download__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 20px;
  opacity: 0;
  background-color: var(--card-bg-dark-mode);
}

/* FAQ展开状态 - 🚨 Sử dụng!important và đủ lớn max-height để đảm bảo mở rộng */
.page-download__faq-item.active .page-download__faq-answer {
  max-height: 2000px !important; /* 🚨 Sử dụng!important đảm bảo ưu tiên, giá trị đủ lớn để chứa mọi nội dung */
  padding: 20px !important;
  opacity: 1;
  background-color: var(--card-bg-dark-mode);
}

/* Vấn đề phong cách */
.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background-color: var(--card-bg-dark-mode);
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-download__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

.page-download__faq-question:active {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Vấn đề tiêu đề phong cách */
.page-download__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--primary-color);
  pointer-events: none; /* Ngăn chặn thẻ h3 chặn sự kiện click */
}

/* Chuyển đổi biểu tượng */
.page-download__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  line-height: 1;
  color: var(--secondary-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none; /* Ngăn chặn biểu tượng chặn sự kiện click */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.page-download__faq-item.active .page-download__faq-toggle {
  transform: rotate(45deg);
  color: var(--text-light);
}

.page-download__cta-final-section {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #1a1a2e, #0d0d1a);
}

.page-download__cta-button--large {
    font-size: 24px;
    padding: 20px 40px;
    margin-bottom: 20px;
    background-color: var(--secondary-color);
    color: var(--text-dark);
}

.page-download__cta-button--large:hover {
    background-color: var(--button-hover-secondary);
}

.page-download__cta-button--small {
    font-size: 16px;
    padding: 12px 25px;
    background-color: var(--primary-color);
    color: var(--text-light);
}

.page-download__cta-button--small:hover {
    background-color: var(--button-hover-primary);
}

.page-download__arrow {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.page-download__cta-button--large:hover .page-download__arrow {
    transform: translateX(5px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-download__main-title {
        font-size: 40px;
    }
    .page-download__section-title {
        font-size: 32px;
    }
    .page-download__description {
        font-size: 18px;
    }
    .page-download__cta-button {
        padding: 12px 25px;
        font-size: 16px;
    }
    .page-download__button-icon {
        width: 28px;
        height: 28px;
    }
    .page-download__benefits-grid, .page-download__steps-grid, .page-download__features-list {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-download__hero-section {
        padding: 100px 0 60px; /* Mobile padding-top for fixed header */
    }
    .page-download__container {
        padding: 0 15px;
    }
    .page-download__main-title {
        font-size: 32px;
    }
    .page-download__description {
        font-size: 16px;
        margin-bottom: 30px;
    }
    .page-download__section-title {
        font-size: 28px;
        padding-top: 30px;
    }
    .page-download__section-description {
        font-size: 16px;
        margin-bottom: 30px;
    }
    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-download__cta-button {
        width: 100% !important; /* Ensure buttons take full width */
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 15px 20px !important;
        font-size: 16px !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-download__button-icon {
        width: 24px;
        height: 24px;
        margin-right: 8px;
    }
    .page-download__qr-code {
        width: 150px;
        height: 150px;
    }
    .page-download__benefits-section, .page-download__steps-section, .page-download__app-features-section, .page-download__faq-section, .page-download__cta-final-section {
        padding: 60px 0;
    }
    .page-download__benefit-title, .page-download__step-title, .page-download__feature-title {
        font-size: 18px;
    }
    .page-download__benefit-text, .page-download__step-text, .page-download__feature-text {
        font-size: 15px;
    }
    .page-download__feature-image {
        height: 150px;
    }

    /* FAQ Mobile Styles */
    .page-download__faq-question {
        padding: 15px;
        flex-wrap: wrap;
    }
    .page-download__faq-question h3 {
        font-size: 16px;
        margin-bottom: 0;
        width: calc(100% - 40px);
    }
    .page-download__faq-toggle {
        margin-left: 10px;
        width: 28px;
        height: 28px;
        font-size: 24px;
    }
    .page-download__faq-answer {
        padding: 0 15px;
    }
    .page-download__faq-item.active .page-download__faq-answer {
        padding: 15px !important;
    }
    
    .page-download__cta-button--large {
        font-size: 20px !important;
        padding: 18px 30px !important;
    }
    .page-download__cta-button--small {
        font-size: 15px !important;
        padding: 10px 20px !important;
    }
    /* Global image responsive styles */
    .page-download img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__hero-section,
    .page-download__benefits-section,
    .page-download__steps-section,
    .page-download__app-features-section,
    .page-download__faq-section,
    .page-download__cta-final-section,
    .page-download__container,
    .page-download__card,
    .page-download__cta-buttons,
    .page-download__qr-code-wrapper,
    .page-download__benefits-grid,
    .page-download__steps-grid,
    .page-download__features-list,
    .page-download__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
    }
}

@media (max-width: 480px) {
    .page-download__main-title {
        font-size: 28px;
    }
    .page-download__section-title {
        font-size: 24px;
    }
    .page-download__cta-buttons {
        gap: 10px;
    }
    .page-download__cta-button {
        font-size: 14px !important;
        padding: 12px 15px !important;
    }
    .page-download__button-icon {
        width: 20px;
        height: 20px;
        margin-right: 5px;
    }
    .page-download__qr-code {
        width: 120px;
        height: 120px;
    }
    .page-download__benefit-title, .page-download__step-title, .page-download__feature-title {
        font-size: 16px;
    }
    .page-download__benefit-text, .page-download__step-text, .page-download__feature-text {
        font-size: 14px;
    }
    .page-download__cta-button--large {
        font-size: 18px !important;
        padding: 15px 25px !important;
    }
    .page-download__cta-button--small {
        font-size: 14px !important;
        padding: 8px 15px !important;
    }
}