/* UAP Files — gallery styles
 * Dark-archival terminal aesthetic. Mobile-first responsive.
 */

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

:root {
  --bg: #0a0a0f;
  --surface: #111118;
  --surface2: #1a1a24;
  --border: #2a2a3a;
  --text: #e0e0ee;
  --text-muted: #888899;
  --accent: #4a9eff;
  --accent-dim: #1a3a6a;
  --tag-bg: #1e1e2e;
  --transcript-bg: #0d1117;
  --radius: 8px;
}

html {
  scroll-behavior: smooth;
  /* Avoid iOS zoom-on-focus and unwanted scaling */
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  /* iPhone notch / safe-area insets */
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* Sticky header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.site-header h1 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  flex: 0 0 auto;
}

.filter-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--tag-bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  /* WCAG / iOS recommended touch target */
  min-height: 36px;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.filter-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.filter-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
}

.filter-count {
  font-size: 11px;
  opacity: 0.75;
}

/* Intro */
.intro {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 20px 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.intro p + p {
  margin-top: 8px;
}

.intro-source {
  font-size: 12.5px;
}

.intro-source a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
}

.intro-source a:hover {
  border-bottom-color: var(--accent);
}

/* Layout */
.gallery {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 20px 64px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Card */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s;
}

.card:hover {
  border-color: #3a3a5a;
}

.card-meta {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 10px;
  /* Allow long titles to wrap nicely on narrow screens */
  overflow-wrap: anywhere;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--text-muted);
  /* Wrap inside long location/agency strings instead of overflowing */
  overflow-wrap: anywhere;
  max-width: 100%;
}

.tag-agency   { color: #88aacc; border-color: #2a3a4a; }
.tag-date     { color: #99bb88; border-color: #2a3a2a; }
.tag-location { color: #cc9966; border-color: #3a2a1a; }

/* Transcript — collapsible to avoid trapping page scroll */
.transcript {
  background: var(--transcript-bg);
  border-bottom: 1px solid var(--border);
}

.transcript-summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  user-select: none;
}

.transcript-summary::-webkit-details-marker { display: none; }

.transcript-summary::after {
  content: "▸";
  margin-left: auto;
  color: var(--text-muted);
  font-size: 12px;
  transition: transform 0.15s ease;
}

.transcript[open] .transcript-summary::after {
  transform: rotate(90deg);
}

.transcript-summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.transcript-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.transcript-alpha {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d4a04a;
  background: rgba(212, 160, 74, 0.12);
  border: 1px solid rgba(212, 160, 74, 0.35);
  border-radius: 3px;
  padding: 2px 6px;
}

.transcript-text {
  font-size: 13px;
  line-height: 1.7;
  color: #b0b0c4;
  white-space: pre-wrap;
  font-family: "SF Mono", "Fira Code", "Cascadia Code", Menlo, monospace;
  padding: 0 20px 16px;
}

/* Media / video */
.media {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: #000;
}

.media video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.duration-badge {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
  pointer-events: none;
  z-index: 2;
}

/* Centered play affordance — overlays the poster until playback starts */
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  z-index: 1;
  transition: opacity 0.15s ease;
}

.play-overlay svg {
  width: 78px;
  height: 78px;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.5));
  transition: transform 0.15s ease;
}

.play-overlay:hover svg { transform: scale(1.06); }

.play-overlay:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -4px;
}

.media-video.playing .play-overlay,
.media-video.played .play-overlay {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 600px) {
  .play-overlay svg { width: 64px; height: 64px; }
}

/* Title + permalink row — title flex-grows, button anchors top-right */
.card-meta-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.card-meta-top .card-title {
  flex: 1;
  min-width: 0;
  margin-bottom: 0;
}

/* Per-card link back to the official record on war.gov */
.source-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 11.5px;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.source-link:hover {
  color: var(--accent);
}

.source-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.copy-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 2px;
  background: transparent;
  border: 0;
  padding: 0;
  font-family: inherit;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s;
}

.copy-link:hover { color: var(--accent); }

.copy-link svg {
  width: 12px;
  height: 12px;
  opacity: 0.85;
  transform: rotate(-45deg);
}

.copy-link.copied {
  color: #88cc88;
}

.copy-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.media.pdf-link {
  padding: 16px 20px;
  background: var(--surface2);
  border-top: 1px solid var(--border);
  /* Reset the 16:9 padding-top from .media */
  padding-top: 16px;
  position: static;
}

.media.pdf-link a {
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  /* Larger tap target */
  display: inline-block;
  padding: 6px 0;
}

.media.pdf-link a:hover { text-decoration: underline; }

.media.pdf-link a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.media.img-block {
  padding-top: 0;
  position: static;
  background: #000;
  border-top: 1px solid var(--border);
}

.media.img-block img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 640px;
  object-fit: contain;
}

/* Description */
.card-description {
  padding: 16px 20px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.card-description p + p {
  margin-top: 10px;
}

.card-description:empty {
  display: none;
}

/* Mobile (≤ 600px) */
@media (max-width: 600px) {
  body {
    font-size: 14px;
  }

  .site-header {
    padding: 10px 16px;
    gap: 8px;
  }

  .site-header h1 {
    font-size: 14px;
  }

  .filter-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  .gallery {
    padding: 16px 12px 48px;
    gap: 20px;
  }

  .card-meta,
  .transcript,
  .card-description {
    padding-left: 14px;
    padding-right: 14px;
  }

  .card-meta {
    padding-top: 16px;
    padding-bottom: 12px;
  }

  .transcript-summary {
    padding: 12px 14px;
  }

  .transcript-text {
    padding: 0 14px 12px;
  }

  .media.pdf-link {
    padding-left: 14px;
    padding-right: 14px;
  }

  .media.img-block img {
    max-height: 480px;
  }
}

/* Very narrow (≤ 360px — iPhone SE 1st-gen, small Androids) */
@media (max-width: 360px) {
  .site-header {
    padding: 10px 12px;
  }
  .site-header h1 {
    font-size: 13px;
    letter-spacing: 0.03em;
  }
  .gallery {
    padding-left: 8px;
    padding-right: 8px;
  }
  .card-meta,
  .transcript,
  .card-description,
  .media.pdf-link {
    padding-left: 12px;
    padding-right: 12px;
  }
}

/* Single-item permalink page */
.header-link {
  color: inherit;
  text-decoration: none;
}

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

.item-page-main {
  padding-top: 32px;
}

.back-to-gallery {
  display: inline-block;
  margin-top: 8px;
  padding: 6px 0;
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
}

.back-to-gallery:hover { color: var(--accent); }

.back-to-gallery:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Reduce motion when requested */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .filter-btn { transition: none; }
  .card { transition: none; }
}