/* ============================================================
   Apple Immersive Video & Spatial Computing — Site Stylesheet
   styles.css
   Used by: index.html, creators.html, usecases.html,
            newsletters/index.html, newsletter web versions
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #1d1d1f;
  background-color: #f5f5f7;
}

a { color: #0176ba; text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid #0176ba; outline-offset: 3px; border-radius: 2px; }

img { max-width: 100%; display: block; }

/* ── Layout ───────────────────────────────────────────────── */
.site-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Site Header ──────────────────────────────────────────── */
.site-header {
  background-color: #1d1d1f;
  padding: 0;
}

.site-header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  gap: 24px;
}

.site-header-logo {
  font-size: 14px;
  font-weight: 600;
  color: #f5f5f7;
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.site-header-logo:hover { text-decoration: none; color: #ffffff; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav li a {
  display: block;
  padding: 18px 14px;
  font-size: 13px;
  font-weight: 500;
  color: #ababab;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.15s;
}
.site-nav li a:hover,
.site-nav li a.active { color: #ffffff; text-decoration: none; }

/* ── Site Footer ──────────────────────────────────────────── */
.site-footer {
  background-color: #1d1d1f;
  margin-top: 64px;
  padding: 32px 24px;
}

.site-footer-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.site-footer p {
  margin: 0 0 8px;
  font-size: 12px;
  color: #6e6e73;
  line-height: 1.6;
}

.site-footer p:last-child { margin: 0; }

.site-footer a { color: #6e6e73; text-decoration: underline; }
.site-footer a:hover { color: #ababab; }

/* ── Page Hero ────────────────────────────────────────────── */
.page-hero {
  background-color: #1d1d1f;
  padding: 48px 24px 40px;
  text-align: center;
}

/* Image variant — add this class alongside .page-hero for a background image with overlay */
.page-hero-image {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Semi-transparent dark overlay sits between image and text */
.page-hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.62);
  z-index: 0;
}

/* Text must sit above the overlay */
.page-hero-image h1,
.page-hero-image p {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  margin: 0 0 12px;
  font-size: 32px;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-hero p {
  margin: 0 auto;
  max-width: 600px;
  font-size: 16px;
  color: #ababab;
  line-height: 1.6;
}

/* ── Main Content Area ────────────────────────────────────── */
.page-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

/* ── Section Headings ─────────────────────────────────────── */
.section-heading {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6e6e73;
  border-bottom: 1px solid #dddee1;
  padding-bottom: 8px;
  margin: 40px 0 16px;
}

.section-heading:first-child { margin-top: 0; }

.subsection-heading {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #86868b;
  margin: 24px 0 10px;
}

/* ── Catalog Entry List ───────────────────────────────────── */
.catalog-list {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
}

.catalog-list li {
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
  font-size: 15px;
  line-height: 1.5;
}

.catalog-list li:last-child { border-bottom: none; }

.entry-name {
  font-weight: 600;
  font-size: 16px;
  display: block;
  color: #1d1d1f;
  margin-bottom: 2px;
}

a.entry-name { color: #0176ba; }
a.entry-name:hover { text-decoration: underline; }

.entry-platform {
  font-size: 12px;
  color: #6e6e73;
  display: block;
  margin-bottom: 3px;
}

.entry-note {
  font-size: 13px;
  color: #6e6e73;
  display: block;
  line-height: 1.5;
  margin-top: 4px;
}

/* ── Status Pills ─────────────────────────────────────────── */
.pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  margin-right: 6px;
  vertical-align: middle;
}

.pill-new      { background: #dcfce7; color: #166534; }
.pill-pending  { background: #fef3c7; color: #92400e; }
.pill-gone     { background: #fee2e2; color: #991b1b; }

/* ── Search Bar ───────────────────────────────────────────── */
.search-wrap {
  margin: 0 0 28px;
}

.search-input {
  width: 100%;
  max-width: 480px;
  padding: 10px 16px;
  font-size: 15px;
  font-family: inherit;
  color: #1d1d1f;
  background: #ffffff;
  border: 1px solid #dddee1;
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s;
}

.search-input:focus { border-color: #0176ba; }
.search-input::placeholder { color: #ababab; }

/* ── Newsletter Archive List ──────────────────────────────── */
.newsletter-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.newsletter-list li {
  padding: 16px 0;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.newsletter-list li:last-child { border-bottom: none; }

.newsletter-date {
  font-size: 12px;
  color: #6e6e73;
  white-space: nowrap;
  min-width: 90px;
}

.newsletter-title {
  font-size: 15px;
  font-weight: 500;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 16px;
    gap: 8px;
    min-height: auto;
  }

  .site-nav { flex-wrap: wrap; gap: 0; }
  .site-nav li a { padding: 8px 10px; font-size: 12px; }

  .page-hero h1 { font-size: 24px; }
  .page-hero { padding: 32px 16px 28px; }
  .page-content { padding: 24px 16px 48px; }
}

/* ── Newsletter Web Version ───────────────────────────────── */
/* Used in newsletters/*.html — wider than email, takes advantage of browser width */
/* Email version (immersive_next_draft.html) stays at 600px max-width */
.nl-wrap { max-width: 900px; margin: 32px auto; background: #ffffff; border-radius: 10px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.nl-section { padding: 32px 48px; }
.nl-label { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; color: #6e6e73; margin: 0 0 10px; }
.nl-hr { border: none; border-top: 1px solid #dddee1; margin: 0; }
.nl-h2 { font-size: 17px; font-weight: 600; color: #1d1d1f; margin: 0 0 8px; line-height: 1.3; }
.nl-h3 { font-size: 15px; font-weight: 600; color: #1d1d1f; margin: 0 0 6px; }
.nl-p { margin: 0 0 12px; font-size: 14px; color: #1d1d1f; line-height: 1.6; }
.nl-img-crop { overflow: hidden; border-radius: 8px; }
.nl-img-crop img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 640px) {
  .nl-section { padding: 20px 16px; }
}


.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.text-muted { color: #6e6e73; }
.text-small { font-size: 13px; }