/* ============================================
   DOWNLOAD PAGE — download.html Specific Styles
   ============================================ */

/* --- Download Hero --- */
.download-hero {
  width: 100%;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, #f8fafd 0%, #e8f0fe 50%, #ffffff 100%);
  padding: 100px 16px 60px;
}

.download-hero-content {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.download-hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .download-hero-title {
    font-size: 52px;
  }
}

.download-hero-subtitle {
  font-size: 17px;
  color: var(--color-secondary-text);
  line-height: 1.65;
  margin-top: 16px;
  max-width: 560px;
}

/* --- Main Download Card --- */
.main-download-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  max-width: 520px;
  width: 100%;
  margin-top: 32px;
}

.main-download-card .platform-icon {
  margin: 0 auto;
}

.main-download-card .platform-icon svg {
  width: 64px;
  height: 64px;
}

.main-download-card h3 {
  margin-top: 16px;
}

.main-download-card .version-info {
  font-size: 14px;
  color: var(--color-tertiary-text);
  margin-top: 4px;
}

.main-download-card .btn {
  margin-top: 20px;
  width: 100%;
  padding: 16px;
}

.main-download-card .platform-note {
  font-size: 13px;
  color: var(--color-tertiary-text);
  margin-top: 10px;
}

.main-download-card .security-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-secondary-text);
  margin-top: 16px;
}

.main-download-card .security-note svg {
  width: 16px;
  height: 16px;
  color: var(--color-success);
  flex-shrink: 0;
}

/* --- Download Hero Secondary Info --- */
.download-hero-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-top: 32px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-secondary-text);
}

.info-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- Multi-Platform Download Section --- */
.download-platforms-section {
  background: var(--color-surface);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .download-platforms-section {
    padding: 100px 0;
  }
}

/* --- Install Guide Section --- */
.install-guide-section {
  background: var(--color-bg);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .install-guide-section {
    padding: 100px 0;
  }
}

.install-guide-container {
  max-width: 800px;
  margin: 0 auto;
}

/* Timeline connector line */
.steps-timeline {
  position: relative;
  padding-left: 28px;
}

.steps-timeline::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: var(--color-light-primary);
}

.step {
  position: relative;
  z-index: 1;
}

/* --- macOS Guide --- */
.macos-guide-section {
  background: var(--color-surface);
  padding: 60px 0;
}

@media (min-width: 768px) {
  .macos-guide-section {
    padding: 80px 0;
  }
}

.macos-guide-section .step {
  background: #ffffff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.macos-guide-section .step-number {
  width: 36px;
  height: 36px;
  font-size: 15px;
}

/* --- System Requirements --- */
.requirements-section {
  background: var(--color-bg);
  padding: 60px 0;
}

@media (min-width: 768px) {
  .requirements-section {
    padding: 80px 0;
  }
}

/* --- Changelog --- */
.changelog-section {
  background: var(--color-surface);
  padding: 60px 0;
}

@media (min-width: 768px) {
  .changelog-section {
    padding: 80px 0;
  }
}

.changelog-container {
  max-width: 800px;
  margin: 0 auto;
}

/* --- Install FAQ --- */
.install-faq-section {
  background: var(--color-bg);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .install-faq-section {
    padding: 100px 0;
  }
}

/* --- Security Notice --- */
.security-section {
  background: #e8f0fe;
  padding: 60px 24px;
}

.security-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.security-card svg {
  width: 64px;
  height: 64px;
  color: var(--color-primary);
}

.security-card h3 {
  margin-top: 20px;
}

.security-card p {
  color: var(--color-secondary-text);
  line-height: 1.7;
  margin-top: 12px;
}

/* --- Download Card Details --- */
.download-card .platform-icon {
  margin-bottom: 16px;
}

.download-card .platform-icon svg {
  width: 56px;
  height: 56px;
}

.download-card .version-meta {
  font-size: 14px;
  color: var(--color-tertiary-text);
  margin-bottom: 16px;
}

.download-card .requirements-list {
  list-style: disc;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-secondary-text);
  line-height: 1.7;
}

.download-card .steps-list {
  list-style: decimal;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-secondary-text);
  line-height: 1.7;
}