/* ═══════════════════════════════════════════════════════════
   ADO Code — Presentation deck
   Reuses design tokens + base from style.css (Azure accent,
   IBM Plex, 8px grid, named shadows). Deck-specific layout only.
   ═══════════════════════════════════════════════════════════ */

:root {
  --chrome-h: 56px;
  --canvas-w: 1280px;
  --canvas-h: 720px;

  /* slide type scale (canvas-space rem) */
  --ds-3xl: 4rem;      /* 64px — title-slide heading */
  --ds-2xl: 2.6rem;    /* 41px — slide heading */
  --ds-xl: 1.75rem;    /* 28px — card / lead */
  --ds-lg: 1.25rem;    /* 20px — body */
  --ds-md: 1rem;       /* 16px — small body */
  --ds-sm: 0.875rem;   /* 14px — captions */
  --ds-xs: 0.75rem;    /* 12px — meta */
}

/* ── No-JS fallback: slides stack and scroll ─────────── */
.deck-body { overflow: auto; }
.deck-viewport { position: relative; padding: 24px; }
.deck-stage { width: 100%; height: auto; }
.slide {
  position: relative;
  opacity: 1; visibility: visible; transform: none;
  aspect-ratio: 16 / 9;
  margin-bottom: 24px;
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 56px 64px 64px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── JS-active: fixed 16:9 canvas, scaled to fit ─────── */
.js .deck-viewport {
  position: fixed;
  top: var(--chrome-h); left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: 24px;
  background-color: var(--bg-0);
  background-image:
    linear-gradient(rgba(120, 140, 180, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 140, 180, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.js .deck-stage {
  position: relative;
  width: var(--canvas-w);
  height: var(--canvas-h);
  flex: 0 0 auto;
  transform-origin: center center;
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-3);
  overflow: hidden;
}
.js .slide {
  position: absolute;
  inset: 0;
  margin: 0;
  aspect-ratio: auto;
  border: 0; border-radius: 0;
  opacity: 0; visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), visibility 0.4s;
}
.js .slide.is-active { opacity: 1; visibility: visible; transform: none; }

/* ── Chrome (controls) ───────────────────────────────── */
.deck-chrome {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--chrome-h);
  display: flex; align-items: center; gap: 18px;
  padding: 0 16px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border-soft);
  z-index: 100;
}
.deck-chrome-brand { display: flex; align-items: center; gap: 10px; }
.deck-chrome-brand img { border-radius: 6px; }
.deck-chrome-name { font-weight: 700; font-size: 0.95rem; }
.deck-chrome-sub {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 1px 8px;
}
.deck-chrome-nav { display: flex; align-items: center; gap: 8px; }
.deck-counter {
  display: flex; align-items: baseline; justify-content: center;
  gap: 4px; min-width: 58px;
  font-family: var(--font-mono); font-size: 0.9rem; color: var(--ink-2);
}
.deck-counter-sep { color: var(--ink-4); }
#counter-cur { color: var(--ink); font-weight: 600; }

.deck-progress {
  flex: 1;
  height: 3px;
  background: var(--bg-3);
  border-radius: 99px;
  overflow: hidden;
}
.deck-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent-hi), var(--accent));
  transition: width 0.3s var(--ease);
}
.deck-chrome-tools { display: flex; align-items: center; gap: 8px; }

.deck-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--ink-2);
  cursor: pointer;
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease),
              border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}
.deck-btn:hover { color: var(--ink); border-color: var(--accent-deep); background: var(--bg-3); }
.deck-btn:active { transform: translateY(1px); }
.deck-btn:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 2px; }
.deck-btn:disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.deck-btn[aria-pressed="true"] {
  color: var(--accent-ink);
  background: linear-gradient(180deg, var(--accent-hi), var(--accent-deep));
  border-color: transparent;
}

/* ── Slide typography ────────────────────────────────── */
.s-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--ds-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}
.s-kicker-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}
.s-head { margin-bottom: 40px; }
.s-title {
  font-size: var(--ds-2xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: 12px;
}
.s-sub { color: var(--ink); font-size: var(--ds-lg); margin-top: 12px; max-width: 940px; }

.s-hero-title {
  font-size: var(--ds-3xl);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 16px 0 18px;
}
.s-hero-lead { font-size: var(--ds-xl); font-weight: 500; color: var(--ink); max-width: 860px; }
.s-hero-sub { color: var(--ink); font-size: var(--ds-lg); margin-top: 18px; max-width: 760px; }

.slide--title { justify-content: center; align-items: center; text-align: center; }
.s-title-wrap { display: flex; flex-direction: column; align-items: center; max-width: 960px; }
.s-title-wrap .s-kicker { justify-content: center; }
.s-title-wrap .s-hero-sub { margin-left: auto; margin-right: auto; }

.s-chips {
  list-style: none;
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  margin-top: 34px;
  color: var(--ink-2);
  font-size: var(--ds-sm);
  font-family: var(--font-mono);
}
.s-chips li { display: flex; align-items: center; gap: 8px; }
.s-chips li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--green-dim); }

.s-hint {
  position: absolute; bottom: 22px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: var(--ds-xs);
  color: var(--ink-2);
  white-space: nowrap;
}

/* ── Bullets / lists ─────────────────────────────────── */
.s-bullets { list-style: none; display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.s-bullets li {
  position: relative;
  padding-left: 32px;
  color: var(--ink);
  font-size: var(--ds-lg);
  line-height: 1.45;
}
.s-bullets li::before {
  content: "✓";
  position: absolute; left: 0; top: 0.05em;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: var(--ds-md);
  font-weight: 600;
}
.s-bullets strong { color: var(--ink); font-weight: 600; }

/* ── Columns & grid ──────────────────────────────────── */
.s-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.s-cols--gap { gap: 28px; }
.s-cols--3 { grid-template-columns: repeat(3, 1fr); gap: 22px; }
.s-col { display: flex; flex-direction: column; }

.s-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.s-grid--4 { grid-template-columns: repeat(4, 1fr); }

.s-card {
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.s-card h3 { display: flex; align-items: center; gap: 10px; font-size: var(--ds-xl); font-weight: 600; margin-bottom: 10px; }
.s-card p { color: var(--ink); font-size: var(--ds-md); }
.s-card-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--font-mono); font-size: var(--ds-sm); font-weight: 600;
  flex-shrink: 0;
}

/* ── Problem slide ───────────────────────────────────── */
.s-pain {
  display: flex; gap: 20px;
  padding: 22px 24px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.s-pain-num { font-family: var(--font-mono); font-size: var(--ds-xl); font-weight: 600; color: var(--accent-hi); line-height: 1.2; }
.s-pain h3 { font-size: var(--ds-lg); font-weight: 600; margin-bottom: 6px; }
.s-pain p { color: var(--ink); font-size: var(--ds-md); }

/* ── Core loop flow ──────────────────────────────────── */
.deck-flow { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.df-step {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: var(--ds-lg); font-weight: 500; color: var(--ink);
}
.df-step--done { border-color: rgba(78, 201, 176, 0.4); color: var(--green); }
.df-n {
  font-family: var(--font-mono); font-size: var(--ds-sm); font-weight: 600;
  color: var(--accent-hi);
  background: rgba(0, 120, 212, 0.12);
  border-radius: 6px;
  padding: 3px 9px;
}
.df-arrow { color: var(--ink-2); font-family: var(--font-mono); font-size: var(--ds-lg); }

.s-footnote { margin-top: 28px; color: var(--ink-2); font-size: var(--ds-sm); max-width: 980px; }
.s-footnote em { font-style: normal; color: var(--ink); font-weight: 500; }

/* ── Chat modes ──────────────────────────────────────── */
.s-mode {
  display: flex; flex-direction: column; gap: 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px;
}
.s-mode h3 { font-size: var(--ds-xl); font-weight: 600; }
.s-mode p { color: var(--ink); font-size: var(--ds-md); }
.s-mode-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--ds-xs);
  letter-spacing: 0.02em;
  color: var(--green);
  background: rgba(78, 201, 176, 0.08);
  border: 1px solid rgba(78, 201, 176, 0.4);
  border-radius: 99px;
  padding: 2px 10px;
}
.s-mode-tag--dim { color: var(--ink-2); background: rgba(255, 255, 255, 0.03); border-color: var(--border); }
.s-mode-tag--warn { color: var(--gold); background: rgba(215, 186, 125, 0.08); border-color: rgba(215, 186, 125, 0.4); }

/* ── Agents ──────────────────────────────────────────── */
.s-agents { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.s-agent {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  font-size: var(--ds-lg); font-weight: 600;
}
.s-agent-logo {
  width: 46px; height: 46px; border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

/* ── Merge loop ──────────────────────────────────────── */
.s-steps { display: flex; flex-direction: column; gap: 12px; }
.s-step {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}
.s-step-n { font-family: var(--font-mono); font-size: var(--ds-sm); font-weight: 600; color: var(--accent-hi); width: 22px; text-align: center; flex-shrink: 0; }
.s-step code { color: var(--ink); font-weight: 500; font-size: var(--ds-md); background: none; border: none; padding: 0; white-space: nowrap; }
.s-step-d { margin-left: auto; color: var(--ink-2); font-size: var(--ds-sm); text-align: right; }
.s-step--done { border-color: rgba(78, 201, 176, 0.4); }
.s-step--done code { color: var(--green); }

.s-guard {
  background: rgba(0, 120, 212, 0.05);
  border: 1px solid rgba(0, 120, 212, 0.18);
  border-radius: var(--radius);
  padding: 26px 28px;
}
.s-guard h3 { font-size: var(--ds-xl); font-weight: 600; margin-bottom: 12px; }

/* ── Split slides (media + text) ─────────────────────── */
.slide--split { flex-direction: row; align-items: center; gap: 56px; }
.s-split-media { flex: 1.15; min-width: 0; }
.s-split-txt { flex: 1; min-width: 0; }

.slide .mini-tree { font-size: 1.05rem; padding: 24px 22px; border-radius: var(--radius); }
.slide .mini-row { padding: 5px 0; }
.slide .mini-row b { font-size: 0.85rem; }
.slide .mini-row em { font-size: 0.82rem; }

.slide .window { transform: none; box-shadow: var(--shadow-2); }
.slide .win-body { height: 400px; }
.slide .sidebar { width: 200px; }
.slide .chat { font-size: 0.86rem; }

/* ── Closing ─────────────────────────────────────────── */
.s-close-links { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; justify-content: center; }
.s-close-meta { margin-top: 28px; color: var(--ink-2); font-size: var(--ds-sm); font-family: var(--font-mono); }

/* ── Focus visibility for in-slide interactive elements ── */
.slide a:focus-visible, .copy-btn:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 2px; }

/* ── Speaker notes (hidden on stage) ─────────────────── */
.slide__notes { display: none; }

.deck-notes {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  max-height: 40vh;
  display: flex; flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.3s var(--ease);
  z-index: 90;
}
body.notes-open .deck-notes { transform: translateY(0); }
body.notes-open .deck-viewport { bottom: 220px; }
.deck-notes-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.02em; color: var(--ink-2);
}
.deck-notes-body { padding: 16px 20px; color: var(--ink); font-size: 0.95rem; line-height: 1.6; overflow-y: auto; }

/* ── Overview grid ───────────────────────────────────── */
.deck-overview {
  position: fixed; inset: 0; z-index: 110;
  background: var(--bg-0);
  overflow-y: auto;
  padding: 0 32px 40px;
}
.deck-overview[hidden] { display: none; }
.deck-overview-head {
  position: sticky; top: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
  background: var(--bg-0);
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 24px;
  font-size: 1.1rem; font-weight: 600;
}
.deck-overview-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.ov-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-1);
  padding: 0;
  transition: border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}
.ov-thumb:hover { border-color: var(--accent-hi); transform: translateY(-2px); }
.ov-thumb:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 2px; }
.ov-thumb.ov-active { border-color: var(--accent); }
.ov-thumb.ov-active .ov-num { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.ov-thumb-inner {
  position: absolute; top: 0; left: 0;
  width: var(--canvas-w); height: var(--canvas-h);
  transform-origin: top left;
  pointer-events: none;
  background: var(--bg-0);
}
.ov-thumb-inner .slide {
  opacity: 1 !important;
  visibility: visible !important;
  transform: none !important;
  transition: none !important;
}
.ov-num {
  position: absolute; top: 10px; left: 10px; z-index: 1;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink);
  background: rgba(11, 14, 20, 0.78);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 8px;
}

/* ── Print / export (16:9 page) ──────────────────────── */
@page { size: 13.333in 7.5in; margin: 0; }
@media print {
  .deck-chrome, .deck-notes, .deck-overview, .s-hint { display: none !important; }
  .deck-viewport { position: static; padding: 0; background: none !important; }
  .deck-stage { width: var(--canvas-w); height: auto; transform: none !important; border: 0; }
  .slide {
    position: relative; inset: auto; margin: 0;
    width: var(--canvas-w); height: var(--canvas-h);
    opacity: 1 !important; visibility: visible !important; transform: none !important;
    page-break-after: always; break-after: page;
  }
  .slide:last-child { page-break-after: auto; }
}

/* ── Reduced motion ──────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .js .slide { transition: none; transform: none; }
  .deck-progress-fill { transition: none; }
  .deck-notes { transition: none; }
  .ov-thumb { transition: none; }
  .deck-btn { transition: none; }
}

/* ── Small screens (chrome only — canvas scales itself) ── */
@media (max-width: 640px) {
  .deck-chrome { gap: 10px; padding: 0 10px; }
  .deck-chrome-sub, .deck-chrome-brand img { display: none; }
  .deck-counter { min-width: 48px; }
}

/* ── Launch film slide ───────────────────────────────── */
.s-launch-video {
  display: block;
  width: min(760px, 78%);
  max-height: 46vh;
  margin: 18px auto 0;
  border-radius: 14px;
  border: 1px solid var(--border, #232a3b);
  background: #000;
}