/* style/download.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

:root {
  --page-download-primary-color: #11A84E;
  --page-download-secondary-color: #22C768;
  --page-download-card-bg: #11271B;
  --page-download-bg: #08160F;
  --page-download-text-main: #F2FFF6;
  --page-download-text-secondary: #A7D9B8;
  --page-download-border-color: #2E7A4E;
  --page-download-glow-color: #57E38D;
  --page-download-gold-color: #F2C14E;
  --page-download-divider-color: #1E3A2A;
  --page-download-deep-green-color: #0A4B2C;
  --page-download-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-download {
  font-family: 'Arial', sans-serif;
  color: var(--page-download-text-main); /* Mặc định cho nền tối */
}

.page-download__dark-bg {
  background-color: var(--page-download-bg);
  color: var(--page-download-text-main);
}

.page-download__light-bg {
  background-color: #f8f9fa; /* Nền sáng an toàn cho text tối */
  color: #333333; /* Text tối cho nền sáng */
}

.page-download__section {
  padding: 60px 20px;
  text-align: center;
}

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

/* HERO SECTION */
.page-download__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 10px; /* Nhỏ gọn vì body đã có padding-top */
  padding-bottom: 60px;
  position: relative;
  overflow: hidden;
  color: var(--page-download-text-main);
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  padding: 0 20px;
}

.page-download__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem); /* Sử dụng clamp cho font-size */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--page-download-gold-color);
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-download__hero-description {
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 30px;
  color: var(--page-download-text-secondary);
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary {
  background: var(--page-download-button-gradient);
  color: var(--page-download-text-main);
  border: none;
}

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-download__btn-secondary {
  background: transparent;
  color: var(--page-download-gold-color);
  border: 2px solid var(--page-download-gold-color);
}

.page-download__btn-secondary:hover {
  background: var(--page-download-gold-color);
  color: var(--page-download-bg);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

/* SECTION TITLES & INTROS */
.page-download__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--page-download-gold-color);
  text-shadow: 0 0 8px rgba(87, 227, 141, 0.3);
}

.page-download__section-intro {
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--page-download-text-secondary);
}

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

.page-download__feature-card {
  background-color: var(--page-download-card-bg);
  color: var(--page-download-text-main);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--page-download-border-color);
}

.page-download__card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
}

.page-download__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--page-download-gold-color);
}

.page-download__card-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--page-download-text-secondary);
}

/* DOWNLOAD STEPS */
.page-download__download-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.page-download__platform-guide {
  background-color: var(--page-download-card-bg);
  color: var(--page-download-text-main);
  padding: 35px;
  border-radius: 12px;
  text-align: left;
  border: 1px solid var(--page-download-border-color);
  display: flex;
  flex-direction: column;
}

.page-download__guide-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 25px;
  color: var(--page-download-gold-color);
  text-align: center;
}

.page-download__step-list {
  list-style: none;
  padding: 0;
  margin: 0;
  flex-grow: 1;
}

.page-download__step-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 25px;
}

.page-download__step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background: var(--page-download-primary-color);
  color: var(--page-download-text-main);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-right: 15px;
}

.page-download__step-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 8px;
  color: var(--page-download-text-main);
}

.page-download__step-content p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--page-download-text-secondary);
}

.page-download__btn-platform {
  margin-top: auto; /* Đẩy nút xuống dưới cùng */
  width: fit-content;
  align-self: center;
  padding: 12px 25px;
  font-size: 1rem;
}

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

.page-download__step-card {
  background-color: var(--page-download-card-bg);
  color: var(--page-download-text-main);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  border: 1px solid var(--page-download-border-color);
}

.page-download__step-card .page-download__card-image {
  width: 100%;
  max-width: 400px; /* Đảm bảo hình ảnh không quá lớn trong card */
  height: auto;
  object-fit: contain;
  margin: 0 auto 20px auto;
  border-radius: 8px;
  min-width: 200px;
  min-height: 200px;
}

.page-download__step-card .page-download__card-title {
  font-size: 1.4rem;
  color: var(--page-download-gold-color);
}

.page-download__step-card .page-download__card-text {
  color: var(--page-download-text-secondary);
}

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

.page-download__requirement-item {
  background-color: var(--page-download-card-bg);
  color: var(--page-download-text-main);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--page-download-border-color);
}

.page-download__icon-image {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 5px var(--page-download-glow-color));
  min-width: 200px; /* Override nhỏ icon */
  min-height: 200px;
}

.page-download__requirement-item .page-download__card-title {
  font-size: 1.4rem;
  color: var(--page-download-text-main);
  margin-bottom: 15px;
}

.page-download__list {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--page-download-text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.page-download__list li::before {
  content: '✓';
  color: var(--page-download-primary-color);
  font-weight: bold;
  display: inline-block;
  width: 1.5em;
  margin-left: -1.5em;
}

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

.page-download__security-card {
  background-color: var(--page-download-card-bg);
  color: var(--page-download-text-main);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  text-align: left;
  border: 1px solid var(--page-download-border-color);
}

.page-download__security-card .page-download__card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
}

.page-download__security-card .page-download__card-title {
  font-size: 1.5rem;
  color: var(--page-download-gold-color);
}

.page-download__security-card .page-download__card-text {
  color: var(--page-download-text-secondary);
}

/* FAQ SECTION */
.page-download__faq-list {
  margin-top: 40px;
  text-align: left;
}

.page-download__faq-item {
  background-color: var(--page-download-card-bg);
  color: var(--page-download-text-main);
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--page-download-border-color);
  overflow: hidden;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--page-download-deep-green-color);
  color: var(--page-download-text-main);
  border-bottom: 1px solid var(--page-download-divider-color);
}

.page-download__faq-item[open] .page-download__faq-question {
  border-bottom: 1px solid var(--page-download-divider-color);
}

.page-download__faq-qtext {
  flex-grow: 1;
  color: var(--page-download-text-main);
}

.page-download__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--page-download-gold-color);
}

.page-download__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--page-download-text-secondary);
}

.page-download__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-download__faq-item summary::marker {
  display: none;
}

/* FINAL CTA */
.page-download__final-cta {
  margin-top: 40px;
  font-size: 1.2rem;
  padding: 18px 40px;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .page-download__hero-section {
    padding: 40px 20px;
    padding-top: 10px;
  }
  .page-download__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }
  .page-download__hero-description {
    font-size: 1rem;
  }
  .page-download__section {
    padding: 40px 15px;
  }
  .page-download__section-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }
  .page-download__feature-card,
  .page-download__platform-guide,
  .page-download__step-card,
  .page-download__requirement-item,
  .page-download__security-card {
    padding: 25px;
  }
  .page-download__card-title {
    font-size: 1.3rem;
  }
  .page-download__guide-title {
    font-size: 1.6rem;
  }
  .page-download__faq-question {
    font-size: 1.1rem;
    padding: 18px 20px;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding-bottom: 40px;
  }
  .page-download__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }
  .page-download__hero-description {
    font-size: 0.95rem;
  }
  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__section-intro {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }
  .page-download__card-image,
  .page-download__icon-image {
    min-width: 200px !important;
    min-height: 200px !important;
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-download__feature-card,
  .page-download__platform-guide,
  .page-download__step-card,
  .page-download__requirement-item,
  .page-download__security-card,
  .page-download__faq-item,
  .page-download__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__section {
    padding-left: 0;
    padding-right: 0;
  }
  .page-download__download-steps,
  .page-download__installation-steps,
  .page-download__requirements-grid,
  .page-download__security-features {
    gap: 20px;
  }
  .page-download__step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .page-download__step-number {
    margin-right: 0;
    margin-bottom: 10px;
  }
  .page-download__step-content h4 {
    font-size: 1.15rem;
  }
  .page-download__step-content p {
    font-size: 0.9rem;
  }
  .page-download__faq-question {
    font-size: 1rem;
    padding: 15px;
  }
  .page-download__faq-answer {
    font-size: 0.9rem;
    padding: 15px;
  }
  .page-download__final-cta {
    font-size: 1.1rem;
    padding: 15px 30px;
  }
}