/* ==========================================================================
   Adobe Acrobat Reader - Update Landing Page
   Authentic, minimal, clean Adobe-inspired design
   ========================================================================== */

:root {
  --color-red: #EB1000;
  --color-red-hover: #D30F00;
  --color-red-active: #B50D00;
  --color-charcoal: #2C2C2C;
  --color-charcoal-muted: #505050;
  --color-charcoal-subtle: #747474;
  --color-white: #FFFFFF;
  --color-bg-page: #F8F8F8;
  --color-bg-subtle: #FAFAFA;
  --color-bg-meta: #F2F2F2;
  --color-border: #E1E1E1;
  --color-border-subtle: #EBEBEB;
  --font-family-base: "Adobe Clean", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  min-height: 100%;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-page);
  color: var(--color-charcoal);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
}

/* Minimal Site Header */
.site-header {
  width: 100%;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.adobe-logo {
  display: block;
}

.adobe-wordmark {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--color-charcoal);
}

.header-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-charcoal-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.header-link:hover {
  color: var(--color-charcoal);
  text-decoration: underline;
}

/* Page Wrapper */
.page-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 44px 24px 32px;
}

/* Main Update Card */
.update-card {
  margin: auto 0;
  width: 100%;
  max-width: 560px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 48px 40px;
  text-align: center;
}

/* Brand Icon */
.brand-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 22px;
}

.brand-icon svg {
  width: 64px;
  height: 64px;
  display: block;
}

/* Eyebrow & Headings */
.brand-eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-charcoal-subtle);
  margin-bottom: 12px;
}

.main-heading {
  font-size: 2.125rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-charcoal);
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}

.description {
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--color-charcoal-muted);
  max-width: 440px;
  margin: 0 auto 20px;
}

/* Release Metadata Badge */
.update-meta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px 14px;
  background-color: var(--color-bg-meta);
  border-radius: 16px;
  font-size: 0.8125rem;
  color: var(--color-charcoal-muted);
  margin-bottom: 28px;
}

.meta-badge {
  background-color: var(--color-red);
  color: var(--color-white);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 10px;
}

.meta-item {
  font-weight: 500;
}

.meta-dot {
  color: #A0A0A0;
}

/* Highlights Box */
.update-highlights {
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border-subtle);
  border-radius: 6px;
  padding: 18px 20px;
  text-align: left;
  margin-bottom: 30px;
}

.highlights-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-charcoal);
  margin-bottom: 12px;
}

.highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-charcoal-muted);
  line-height: 1.45;
}

.check-icon {
  color: var(--color-red);
  flex-shrink: 0;
  margin-top: 2px;
}

/* CTA Download Button */
.cta-container {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-red);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  padding: 16px 36px;
  border-radius: 28px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-download:hover {
  background-color: var(--color-red-hover);
}

.btn-download:active {
  background-color: var(--color-red-active);
}

.btn-download:focus-visible {
  outline: 2px solid var(--color-charcoal);
  outline-offset: 4px;
}

/* Legal & System Details */
.update-legal {
  text-align: center;
}

.system-note {
  font-size: 0.8125rem;
  color: var(--color-charcoal-subtle);
  margin-bottom: 6px;
}

.disclaimer-text {
  font-size: 0.75rem;
  color: var(--color-charcoal-subtle);
  line-height: 1.45;
}

.legal-link {
  color: var(--color-charcoal-muted);
  text-decoration: underline;
  transition: color 0.15s ease;
}

.legal-link:hover {
  color: var(--color-charcoal);
}

/* Page Footer */
.page-footer {
  width: 100%;
  max-width: 580px;
  text-align: center;
  padding-top: 32px;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-link {
  font-size: 0.8125rem;
  color: var(--color-charcoal-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--color-charcoal);
  text-decoration: underline;
}

.footer-dot {
  color: #B0B0B0;
  font-size: 0.75rem;
}

.copyright {
  font-size: 0.8125rem;
  color: var(--color-charcoal-subtle);
}

/* Responsive Adjustments */
@media (max-width: 600px) {
  .header-inner {
    padding: 12px 16px;
  }

  .page-wrapper {
    padding: 24px 16px 20px;
  }

  .update-card {
    padding: 32px 18px;
    border-radius: 6px;
  }

  .brand-icon svg {
    width: 54px;
    height: 54px;
  }

  .main-heading {
    font-size: 1.75rem;
  }

  .description {
    font-size: 1rem;
    margin-bottom: 16px;
  }

  .update-highlights {
    padding: 14px 14px;
  }

  .btn-download {
    width: 100%;
    padding: 15px 24px;
  }

  .footer-links {
    gap: 6px;
  }
}