/**
 * Full-screen presenter: vertical scroll-snap + side dot rail (ParNotFar tokens).
 * Tokens on body: deck still works if ../css/site.css fails (e.g. file://).
 */
body.deck-present-body {
  --color-field-ink-soft: #252f2a;
  --color-field-ink-mid: #2c3832;
  --color-field-sage-deep: #4d5e52;
  --color-field-sage: #5a6b5e;
  --color-white-pure: #ffffff;
  --color-text-on-field: #f2f4ef;
  --color-text-on-field-soft: rgba(242, 244, 239, 0.82);
  --color-text-on-field-muted: rgba(242, 244, 239, 0.62);
  --color-charcoal-muted: #3d4540;
  --color-sage-accent: #6f8a78;
  --color-line-on-field: rgba(255, 255, 255, 0.12);
  --color-line-on-panel: #c5c9c0;
  --radius-md: 10px;
  --shadow-soft: 0 4px 24px rgba(26, 34, 30, 0.12);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: "Montserrat", "Sora", -apple-system, sans-serif;

  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  background: var(--color-field-ink-soft);
}

.deck-present {
  flex: 1;
  min-height: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  position: relative;
}

/* Full viewport; no chrome bar */
.deck-present__scroll {
  flex: 1;
  width: 100%;
  min-height: 0;
  height: 100vh;
  max-height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  overscroll-behavior-y: contain;
}

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

.deck-present__slide {
  min-height: 100vh;
  min-height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  box-sizing: border-box;
  padding: clamp(2rem, 6vw, 4rem) clamp(1.5rem, 5vw, 3rem) clamp(2.5rem, 6vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--color-text-on-field);
  background: linear-gradient(
    168deg,
    var(--color-field-ink-soft) 0%,
    var(--color-field-ink-mid) 42%,
    var(--color-field-sage-deep) 100%
  );
  border-bottom: 1px solid var(--color-line-on-field);
}

.deck-present__slide:last-child {
  border-bottom: none;
}

/* Alternate rhythm: slightly lighter sage band */
.deck-present__slide:nth-child(even) {
  background: linear-gradient(
    168deg,
    var(--color-field-ink-mid) 0%,
    var(--color-field-sage-deep) 55%,
    var(--color-field-sage) 100%
  );
}

.deck-present__inner {
  max-width: 38rem;
  width: 100%;
}

.deck-present__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-sage-accent);
  background: rgba(111, 138, 120, 0.18);
  border: 1px solid rgba(111, 138, 120, 0.35);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.deck-present__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  line-height: 1.1;
  color: var(--color-white-pure);
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}

.deck-present__title em {
  font-style: normal;
  color: var(--color-sage-accent);
}

.deck-present__lead {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-on-field-soft);
  margin: 0 auto;
  max-width: 32rem;
}

.deck-present__placeholder {
  margin-top: 1.75rem;
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-charcoal-muted);
  background: var(--color-white-pure);
  border: 1px solid var(--color-line-on-panel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

/* Fixed right rail — every slide is a hollow ring; current slide gets ring + label (reference-style) */
.deck-present__dots {
  position: fixed;
  z-index: 9999;
  right: clamp(0.65rem, 2vw, 1.35rem);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
  pointer-events: none;
  max-height: 92vh;
}

.deck-present__dots-inner {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.55rem;
  max-height: 88vh;
  min-width: min(12rem, 42vw);
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  padding: 0.35rem 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

.deck-present__dots-inner::-webkit-scrollbar {
  width: 4px;
}

.deck-present__dots-inner::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.22);
  border-radius: 4px;
}

.deck-present__dot-wrap {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  flex-shrink: 0;
}

/* Slide index in HTML — sage + dual keyline so it stays visible on white or green */
.deck-present__dot-num {
  display: inline-block;
  min-width: 1.15rem;
  text-align: right;
  font-size: 0.5625rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--color-sage-accent);
  text-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.55),
    0 1px 2px rgba(0, 0, 0, 0.45);
}

.deck-present__dot-wrap.is-active .deck-present__dot-num {
  display: none;
}

.deck-present__dot-label {
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-white-pure);
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: opacity 0.2s var(--ease-out), max-width 0.25s var(--ease-out);
}

.deck-present__dot-wrap.is-active .deck-present__dot-label {
  opacity: 1;
  max-width: 11rem;
}

/* Hollow ring — sage stroke + keyline so rings stay visible on white backgrounds */
.deck-present__dot {
  flex-shrink: 0;
  box-sizing: border-box;
  width: 14px;
  height: 14px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid rgba(111, 138, 120, 0.9);
  background: transparent;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.35),
    0 0 0 2px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  appearance: none;
  transition: border-color 0.2s var(--ease-out), transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.deck-present__dot:hover {
  border-color: var(--color-sage-accent);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.5),
    0 0 0 2px rgba(0, 0, 0, 0.08);
  transform: scale(1.08);
}

.deck-present__dot-wrap.is-active .deck-present__dot {
  width: 18px;
  height: 18px;
  border-width: 2px;
  border-color: var(--color-sage-accent);
  background: transparent;
  box-shadow: 0 0 0 1px rgba(111, 138, 120, 0.45);
  transform: scale(1);
}

.deck-present__dot:focus-visible {
  outline: 2px solid var(--color-white-pure);
  outline-offset: 3px;
}

.deck-present__hint {
  position: fixed;
  bottom: clamp(0.75rem, 2vw, 1.25rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 140;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 90vw;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-on-field-muted);
  pointer-events: none;
}

.deck-present__hint-keys {
  pointer-events: none;
}

.deck-present__hint-link {
  pointer-events: auto;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-on-field-muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 244, 239, 0.25);
  padding-bottom: 0.05em;
}

.deck-present__hint-link:hover {
  color: var(--color-sage-accent);
  border-bottom-color: rgba(111, 138, 120, 0.55);
}

@media (max-width: 640px) {
  .deck-present__dots {
    right: 0.45rem;
    max-height: 85vh;
  }

  .deck-present__dots-inner {
    gap: 0.45rem;
    max-height: 82vh;
  }

  .deck-present__dot-wrap.is-active .deck-present__dot-label {
    max-width: 6.5rem;
    font-size: 0.5625rem;
  }
}