:root {
  --deck-bg: #ffffff;
  --deck-ink: #111111;
  --deck-ink-soft: #4d4d4d;
  --deck-ink-muted: #6f6f6f;
  --deck-rule: #e5e5e5;
  --deck-rule-strong: #151515;
  --deck-surface: #f0f0ec;
  --deck-sans: "Montserrat", sans-serif;
  --deck-serif: "Source Serif 4", serif;
  --deck-max-w: 1280px;

  /* Heights of each chrome layer */
  --nav-h: 4.25rem;
  --topbar-h: 3.25rem;
  --ctrl-h: 2.75rem;
  --thumb-h: 4.75rem;
  --caption-h: 1.75rem;

  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --text-xs: 0.72rem;
  --text-sm: 0.875rem;
  --text-lg: 1.125rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  background: var(--deck-bg);
  color: var(--deck-ink);
  font-family: var(--deck-serif);
  overflow: hidden;
  height: 100dvh;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ─── skip link ─────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -60px;
  z-index: 100;
  background: var(--deck-ink);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  font-family: "Staatliches", var(--deck-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: top 0.2s ease;
}
.skip-link:focus { top: var(--space-4); }

/* ─── site header / nav ─────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--deck-bg);
  border-bottom: 1px solid var(--deck-rule);
}

.site-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-5) 0;
}

.site-nav-brand {
  font-family: "Staatliches", var(--deck-sans);
  font-size: var(--text-lg);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--deck-ink);
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-nav-links a {
  font-family: "Staatliches", var(--deck-sans);
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--deck-ink-soft);
  transition: color 0.15s ease;
}

.site-nav-links a:hover { color: var(--deck-ink); }

/* ─── outer shell ───────────────────────────────────────────────────────── */
.deck-shell {
  height: calc(100dvh - var(--nav-h));
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.deck-shell__inner {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  max-width: var(--deck-max-w);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ─── compact top bar ───────────────────────────────────────────────────── */
.deck-hero {
  flex-shrink: 0;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--deck-rule);
  overflow: hidden;
}

.deck-hero__eyebrow { display: none; }
.deck-hero__dek { display: none; }

.deck-hero__title {
  flex-shrink: 1;
  min-width: 0;
  margin: 0;
  font-family: var(--deck-sans);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--deck-ink);
}

.deck-meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  border: none;
}

.deck-meta__block {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.deck-meta__label {
  display: block;
  font-family: var(--deck-sans);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--deck-ink-muted);
  white-space: nowrap;
}

.deck-meta__value {
  font-family: var(--deck-sans);
  font-size: 0.76rem;
  font-weight: 500;
  line-height: 1;
  color: var(--deck-ink);
  white-space: nowrap;
}

/* ─── viewer ────────────────────────────────────────────────────────────── */
.deck-viewer {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* ─── stage ─────────────────────────────────────────────────────────────── */
.deck-stage {
  flex: 1;
  min-height: 0;
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--deck-bg);
  user-select: none;
}

.deck-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.deck-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.deck-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.deck-slide--html {
  padding: 0;
  align-items: stretch;
}

.deck-slide--html > * {
  width: 100%;
  height: 100%;
  overflow: auto;
}

/* ─── controls bar ───────────────────────────────────────────────────────── */
.deck-controls {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--ctrl-h);
  padding: 0 0.5rem;
  background: var(--deck-bg);
  border-top: 1px solid var(--deck-rule);
}

.deck-controls__left,
.deck-controls__right {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

/* ─── buttons ────────────────────────────────────────────────────────────── */
.deck-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--deck-ink-soft);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.deck-btn:hover:not(:disabled) {
  color: var(--deck-ink);
  border-color: var(--deck-rule);
}

.deck-btn:focus-visible {
  outline: 2px solid var(--deck-ink);
  outline-offset: 1px;
}

.deck-btn:disabled {
  opacity: 0.28;
  cursor: default;
}

/* ─── counter ────────────────────────────────────────────────────────────── */
.deck-counter {
  font-family: var(--deck-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--deck-ink-muted);
  padding: 0 0.35rem;
  min-width: 4rem;
  text-align: center;
}

.deck-counter__sep {
  margin: 0 0.18em;
  opacity: 0.45;
}

/* ─── caption (hidden — content lives in .deck-transcript for SEO) ─────── */
.deck-caption { display: none; }

/* ─── hidden transcript (visually hidden, fully crawlable) ──────────────── */
.deck-transcript {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ─── thumbnail strip ────────────────────────────────────────────────────── */
.deck-thumbs {
  flex-shrink: 0;
  height: var(--thumb-h);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 0;
  overflow-x: auto;
  overflow-y: hidden;
  border-top: 1px solid var(--deck-rule);
  scrollbar-width: thin;
  scrollbar-color: var(--deck-rule) transparent;
}

.deck-thumbs::-webkit-scrollbar { height: 3px; }
.deck-thumbs::-webkit-scrollbar-track { background: transparent; }
.deck-thumbs::-webkit-scrollbar-thumb { background: var(--deck-rule); border-radius: 2px; }

.deck-thumb {
  flex: 0 0 auto;
  height: 100%;
  aspect-ratio: var(--slide-ratio, 4/3);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  background: #000;
  opacity: 0.45;
  padding: 0;
  transition: opacity 0.15s ease, border-color 0.15s ease;
  outline: none;
}

.deck-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

.deck-thumb--html-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--deck-sans);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--deck-ink);
}

.deck-thumb.is-active,
.deck-thumb:hover {
  border-color: var(--deck-ink);
  opacity: 1;
}

.deck-thumb:focus-visible {
  outline: 2px solid var(--deck-ink);
  outline-offset: 1px;
}

/* ─── notes / footer (hidden in cinema layout) ───────────────────────────── */
.deck-notes { display: none; }
.deck-footer { display: none; }

/* ─── fullscreen ─────────────────────────────────────────────────────────── */
.deck-viewer:-webkit-full-screen {
  width: 100vw; height: 100vh; background: #000;
  display: flex; flex-direction: column;
}
.deck-viewer:-webkit-full-screen .deck-stage { flex: 1; }
.deck-viewer:-webkit-full-screen .deck-controls,
.deck-viewer:-webkit-full-screen .deck-caption,
.deck-viewer:-webkit-full-screen .deck-thumbs {
  background: rgba(0,0,0,0.92);
  border-color: rgba(255,255,255,0.08);
}
.deck-viewer:-webkit-full-screen .deck-btn { color: rgba(255,255,255,0.5); }
.deck-viewer:-webkit-full-screen .deck-btn:hover:not(:disabled) { color: #fff; border-color: rgba(255,255,255,0.2); }
.deck-viewer:-webkit-full-screen .deck-counter,
.deck-viewer:-webkit-full-screen .deck-caption { color: rgba(255,255,255,0.4); }

.deck-viewer:fullscreen {
  width: 100vw; height: 100vh; background: #000;
  display: flex; flex-direction: column;
}
.deck-viewer:fullscreen .deck-stage { flex: 1; }
.deck-viewer:fullscreen .deck-controls,
.deck-viewer:fullscreen .deck-caption,
.deck-viewer:fullscreen .deck-thumbs {
  background: rgba(0,0,0,0.92);
  border-color: rgba(255,255,255,0.08);
}
.deck-viewer:fullscreen .deck-btn { color: rgba(255,255,255,0.5); }
.deck-viewer:fullscreen .deck-btn:hover:not(:disabled) { color: #fff; border-color: rgba(255,255,255,0.2); }
.deck-viewer:fullscreen .deck-counter,
.deck-viewer:fullscreen .deck-caption { color: rgba(255,255,255,0.4); }

/* ─── responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 760px) {
  .site-container { padding: 0 var(--space-4); }

  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) 0;
  }

  .site-nav-links {
    width: 100%;
    flex-wrap: wrap;
    gap: var(--space-5);
  }

  :root { --nav-h: 6rem; }

  .deck-shell__inner { padding: 0 var(--space-4); }

  .deck-meta { display: none; }

  .deck-hero__title { font-size: 0.82rem; }
}