@font-face {
  font-family: "Archivo Black";
  src: url("fonts/ArchivoBlack-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/IBMPlexSans.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/IBMPlexMono-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f3f5f4;
  --ink: #151a22;
  --muted: #68717e;
  --line: #c7cdd5;
  --cobalt: #1648d8;
  --cobalt-dark: #103bb7;
  --cobalt-wash: #e8edff;
  --film: #111722;
  --film-muted: #b9c2d0;
  --white: #f8fafd;
  --surface: #eef0f2;
  --pending: #805500;
  --pending-wash: #fff0c9;
  --page-gutter: clamp(1.25rem, 4.5vw, 4rem);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", Arial, sans-serif;
  -webkit-tap-highlight-color: rgba(22, 72, 216, 0.16);
}

a,
button,
audio,
video {
  touch-action: manipulation;
}

a:focus-visible,
button:focus-visible,
audio:focus-visible,
video:focus-visible {
  outline: 3px solid var(--cobalt);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--white);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.sheet {
  width: min(100%, 90rem);
  min-height: 100dvh;
  margin: 0 auto;
  background: var(--paper);
}

.session-header {
  min-height: 4.75rem;
  padding: 0 var(--page-gutter);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark,
.session-type,
.eyebrow,
.review-status strong,
.chapters-label,
.audio-label {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.wordmark {
  min-height: 2.75rem;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
}

.session-type {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
}

.hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--page-gutter) clamp(2rem, 4vw, 3.25rem);
}

.eyebrow {
  display: block;
  margin-bottom: 1.25rem;
  color: var(--cobalt);
  font-size: 0.75rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  scroll-margin-top: 2rem;
  text-wrap: balance;
}

h1 {
  max-width: 11ch;
  font-family: "Archivo Black", Impact, sans-serif;
  font-size: clamp(4.6rem, 9vw, 8rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.88;
}

.deck {
  margin-top: 1.5rem;
  font-size: clamp(1.0625rem, 2vw, 1.375rem);
  font-weight: 600;
  line-height: 1.35;
}

.watch-link {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 3rem;
  margin-top: 1.5rem;
  padding: 0.75rem 1.125rem;
  background: var(--cobalt);
  border: 0;
  color: var(--white);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.watch-link:hover {
  background: var(--cobalt-dark);
}

.watch-link:disabled,
.chapter-button:disabled {
  opacity: 0.6;
  cursor: progress;
}

.watch-link span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8125rem;
}

.review-status {
  margin-top: 1.5rem;
  min-height: 3.875rem;
  padding: 0.9rem 1.125rem;
  border-left: 5px solid var(--pending);
  background: var(--pending-wash);
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem 1.125rem;
}

.review-status strong {
  color: var(--pending);
  font-size: 0.75rem;
}

.review-status span {
  min-width: 0;
  font-weight: 700;
  line-height: 1.35;
}

.media-section,
.compare-section,
.changes-section {
  padding: 0 var(--page-gutter) clamp(3rem, 6vw, 5rem);
}

.media-section h2,
.compare-section h2,
.changes-section h2 {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  line-height: 1.2;
}

.media-section h2 span,
.compare-section h2 span {
  flex: none;
}

.film-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--film);
  color: var(--white);
}

.film-frame video {
  width: 100%;
  height: 100%;
  display: none;
  object-fit: contain;
  background: var(--film);
}

.film-frame.has-media video {
  display: block;
}

.film-frame.has-media .media-pending {
  display: none;
}

.media-pending {
  position: absolute;
  inset: 0;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  text-align: center;
}

.media-pending strong {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.media-pending span {
  color: var(--film-muted);
  font-size: 0.9375rem;
}

.chapters {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 0.75rem 1.5rem;
}

.chapters-label {
  padding-top: 0.65rem;
  color: var(--muted);
  font-size: 0.6875rem;
  font-weight: 700;
}

.chapter-list {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chapter-button {
  min-height: 2.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: 700 0.8125rem/1.1 "IBM Plex Sans", Arial, sans-serif;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.chapter-button:hover {
  border-color: var(--cobalt);
  color: var(--cobalt);
}

.chapter-button:active {
  transform: translateY(1px);
}

.chapter-button time {
  margin-left: 0.4rem;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.6875rem;
  font-variant-numeric: tabular-nums;
}

.audio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.125rem;
}

.audio-card {
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--line);
  background: var(--surface);
}

.audio-label {
  display: block;
  margin-bottom: 1rem;
  color: var(--cobalt);
  font-size: 0.6875rem;
  font-weight: 700;
}

.audio-card h3 {
  margin-bottom: 1.25rem;
  font-size: 1.375rem;
}

.audio-card audio {
  width: 100%;
  min-height: 3.375rem;
}

.edit-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 2.5rem;
  margin: 1.5rem 0;
  padding-left: 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.5;
}

.edit-list li::marker {
  color: var(--cobalt);
  font-family: "IBM Plex Mono", monospace;
}

.verified-note {
  font-weight: 600;
  line-height: 1.5;
}

.recording-notes {
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  line-height: 1.5;
}

.recording-notes summary {
  padding: 1rem 0;
  font-weight: 700;
  cursor: pointer;
}

.recording-notes ul {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
  max-width: 75ch;
}

.download-section {
  padding: 1.75rem var(--page-gutter);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.download-section h2 {
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.3125rem;
}

.download-section span {
  color: var(--muted);
  font-size: 0.9375rem;
}

.download-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.download-link {
  min-height: 3rem;
  padding: 0 1rem;
  background: var(--cobalt);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 150ms ease, transform 150ms ease;
}

.download-link:hover {
  background: var(--cobalt-dark);
}

.download-link:active {
  transform: translateY(1px);
}

footer {
  min-height: 10rem;
  padding: 2rem var(--page-gutter) calc(2rem + env(safe-area-inset-bottom));
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

footer strong {
  font-size: 0.9375rem;
}

footer span {
  color: var(--muted);
  font: 500 0.6875rem/1.4 "IBM Plex Mono", monospace;
}

.noscript-note {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  padding: 1rem;
  background: var(--ink);
  color: var(--white);
  font-weight: 700;
  text-align: center;
}

[hidden] {
  display: none !important;
}

@media (max-width: 47.99rem) {
  .session-header {
    min-height: 3.75rem;
  }

  h1 {
    white-space: normal;
  }

  .review-status {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .chapters {
    grid-template-columns: 1fr;
  }

  .chapters-label {
    padding-top: 0;
  }

  .chapter-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scroll-snap-type: x proximity;
  }

  .chapter-button {
    min-height: 2.75rem;
    flex: none;
    scroll-snap-align: start;
  }

  .audio-grid,
  .edit-list {
    grid-template-columns: 1fr;
  }

  .audio-card {
    padding: 1.125rem;
  }

  .download-section,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .download-links {
    width: 100%;
    justify-content: stretch;
  }

  .download-link {
    min-height: 3rem;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}