/* ============================================================
   .s-agents-md — Act 4 opener (the Map pillar).
   "Give the agent a project map."

   4-step reveal — concept -> file -> legend -> landing:
     step 0  concept hero (.map-intro): README (use) vs AGENTS
             (change), so the audience learns WHAT the file is
             before seeing one. Houses the tool-agnostic filename
             cycler. No file content yet.
     step 1  the real AGENTS.md excerpt (fabric8 K8s client) lands.
     step 2  the map legend of three gems reveals beside it:
               Golden path      — what should I run?      (canonical command)
               Known trap       — what will waste time?   (~7-8s TLS gotcha, the laugh)
               Local checkpoint — how do I know before opening a PR? (CI repro)
     step 3  the "Not generated. Project-specific." takeaway lands.
   The audience reads the artifact, not bullets.

   The filename cycler (in the step-0 hero) rolls AGENTS.md /
   CLAUDE.md / GEMINI.md / .cursorrules to show the convention is
   tool-agnostic (frozen to AGENTS.md in every capture — see the
   determinism guards at the bottom of this file). A large faint
   fa-map watermark sits bottom-right, echoing the recap card.

   Theme: light slide. The AGENTS.md panel stays a dark terminal
   so it reads as a file, not a text block.
   ============================================================ */

/* The .light class on the section pulls in cream bg + navy ink
   via light-overrides.css; chrome rails inherit shared.css. */

/* Faint dotted grid — atmosphere only */
.s-agents-md::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--grid) 1.2px, transparent 1.4px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   Body grid — header / stage / tagline
   ============================================================ */
.s-agents-md .body {
  position: absolute;
  inset: 56px 0 56px 0;
  z-index: 1;
  /* Act-4 uniform: 36px top, 64px gutter (chrome-bar width). */
  padding: 36px var(--pad-x) 28px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  row-gap: 24px;
}

/* === Header === */
.s-agents-md .head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  /* Center the subtitle against the title's vertical midline (uniform Act 4 + 5). */
  align-items: center;
  column-gap: 48px;
}
.s-agents-md .head .eyebrow {
  grid-column: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  letter-spacing: 0.18em;
  text-transform: lowercase;
  color: var(--accent-ink);
  margin-bottom: 14px;
}
.s-agents-md .head .title {
  grid-column: 1;
  font-size: 64px;
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0;
  color: var(--fg);
}
.s-agents-md .head .title em {
  font-style: normal;
  color: var(--accent);
}
/* Persistent subtitle (top-right) — the quiet, always-on version of the
   README/AGENTS contrast; the step-0 hero is the loud version. */
.s-agents-md .head .sub {
  grid-column: 2;
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 24px;
  line-height: 1.45;
  color: var(--fg-dim);
  text-align: right;
}
.s-agents-md .head .sub .t-readme { color: var(--fg-mute); }
.s-agents-md .head .sub .t-agents { color: var(--accent-ink); font-weight: 600; }

/* ============================================================
   Step-0 concept hero (.map-intro) — overlays the stage before
   any file content. Absolutely positioned so the cross-fade with
   the file panel on step 1 never reflows (the stage keeps its
   grid height from the still-laid-out, opacity:0 panel + callouts).
   ============================================================ */
.s-agents-md .map-intro {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 16px;
  font-family: 'JetBrains Mono', monospace;
  transition: opacity .35s cubic-bezier(.2, .7, .2, 1);
}
.s-agents-md .map-intro .mi-line {
  font-size: 46px;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--fg-dim);
}
.s-agents-md .map-intro .mi-line .t-readme { color: var(--fg-mute); }
.s-agents-md .map-intro .mi-line .t-agents { color: var(--accent-ink); font-weight: 600; }
.s-agents-md .map-intro .mi-line em { font-style: normal; font-weight: 700; color: var(--fg); }
.s-agents-md .map-intro .mi-files {
  margin-top: 14px;
  font-size: 28px;
  /* line-height matches the cycler's 1em roll window so the rolling
     filename shares this line's baseline (overflow:hidden makes the
     window's baseline its bottom edge — equal box heights align them). */
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--fg-mute);
}
.s-agents-md .map-intro .mi-files .fname-cycle { color: var(--accent-ink); }

/* ============================================================
   Step reveals — concept (0) -> file (1) -> legend (2) -> landing (3).
   Reserve space (opacity/visibility, never display) so nothing
   reflows; the panel + callouts are laid out from step 0 even
   while invisible, keeping the callout leader-ticks aligned.
   ============================================================ */
.s-agents-md .agents-panel,
.s-agents-md .callouts {
  opacity: 0;
  visibility: hidden;
}
/* step 1+ : the real file panel */
.s-agents-md[data-step="1"] .agents-panel,
.s-agents-md[data-step="2"] .agents-panel,
.s-agents-md[data-step="3"] .agents-panel {
  opacity: 1;
  visibility: visible;
  animation: agm-reveal 360ms cubic-bezier(.2, .7, .2, 1) both;
}
/* step 2+ : the map legend */
.s-agents-md[data-step="2"] .callouts,
.s-agents-md[data-step="3"] .callouts {
  opacity: 1;
  visibility: visible;
  animation: agm-reveal 360ms cubic-bezier(.2, .7, .2, 1) both;
}
/* the concept hero fades out once the file lands */
.s-agents-md[data-step="1"] .map-intro,
.s-agents-md[data-step="2"] .map-intro,
.s-agents-md[data-step="3"] .map-intro {
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s cubic-bezier(.2, .7, .2, 1), visibility 0s linear .35s;
}
@keyframes agm-reveal {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Stage — single-row 2-col grid:
     col1 = AGENTS.md panel (left)
     col2 = annotation callouts / map legend (right)
   ============================================================ */
.s-agents-md .stage {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  grid-template-areas: "agents callouts";
  column-gap: 48px;
  align-items: stretch;
}

/* ---------- AGENTS.md panel ----------
   Dark terminal-style panel on the cream slide. All in-panel
   colors are pinned explicitly so they don't pick up the light
   theme's navy ink overrides. */
.s-agents-md .agents-panel {
  grid-area: agents;
  background: #060D3A;
  border: 1px solid rgba(10, 21, 84, 0.22);
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 24px 60px rgba(10, 21, 84, 0.20),
    0 4px 12px rgba(10, 21, 84, 0.10);
  display: flex;
  flex-direction: column;
}

.s-agents-md .agents-panel .panel-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 14px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  color: #8A93BC;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.s-agents-md .agents-panel .panel-bar .dot {
  width: 11px; height: 11px; border-radius: 50%;
}
.s-agents-md .agents-panel .panel-bar .dot.r { background: #FF5F57; }
.s-agents-md .agents-panel .panel-bar .dot.y { background: #FEBC2E; }
.s-agents-md .agents-panel .panel-bar .dot.g { background: #28C840; }
.s-agents-md .agents-panel .panel-bar .path { margin-left: 14px; color: #B4BAD8; }

.s-agents-md .agents-panel .panel-body {
  padding: 28px 34px 30px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 24px;
  line-height: 1.5;
  color: #C8CCE4;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  flex: 1;
  overflow: hidden;
}
.s-agents-md .ln { display: block; }
.s-agents-md .ln.md-h {
  color: var(--cyan);
  font-weight: 600;
  margin-top: 6px;
}
.s-agents-md .ln.md-h:first-child { margin-top: 0; }
.s-agents-md .ln.dim { color: rgba(200,204,228,0.55); }
.s-agents-md .ln.sep { height: 12px; }
.s-agents-md .ln.gem { color: #FFFFFF; }
.s-agents-md .ln .lit {
  color: var(--orange-soft);
  background: rgba(225, 99, 9, 0.14);
  border: 1px solid rgba(225, 99, 9, 0.32);
  border-radius: 4px;
  padding: 1px 6px;
}
.s-agents-md .ln .hot { color: var(--pink); font-weight: 600; }

/* ---------- Annotation callouts (right rail) ---------- */
.s-agents-md .callouts {
  grid-area: callouts;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
}
.s-agents-md .callouts .co {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 4px;
  padding: 16px 20px;
  background: #FFFFFF;                         /* lift card off the cream paper */
  border: 1px solid rgba(10, 21, 84, 0.16);
  border-left: 3px solid var(--accent-ink);    /* the colored gem stripe */
  border-radius: 8px;
  position: relative;
  box-shadow:
    0 8px 18px rgba(10, 21, 84, 0.10),
    0 2px 4px rgba(10, 21, 84, 0.06);
}
.s-agents-md .callouts .co::before {
  /* leader tick toward the AGENTS.md panel */
  content: "";
  position: absolute;
  left: -20px;
  top: 50%;
  width: 20px;
  height: 1px;
  background: rgba(10, 21, 84, 0.30);
}
.s-agents-md .callouts .co .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--accent-ink);
  align-self: baseline;
  padding-top: 2px;
}
.s-agents-md .callouts .co .lbl {
  font-size: 24px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.005em;
  line-height: 1.1;
}
.s-agents-md .callouts .co .d {
  grid-column: 2;
  font-family: 'JetBrains Mono', monospace;
  font-size: 24px;
  color: var(--fg-dim);
  line-height: 1.34;
  letter-spacing: 0.01em;
}
.s-agents-md .callouts .co.co-2 {
  /* the laugh-line callout gets the orange accent stripe so it
     visually pops out of the cyan family. */
  border-left-color: var(--accent-2-ink);
}
.s-agents-md .callouts .co.co-2::before { background: rgba(160, 71, 7, 0.45); }
.s-agents-md .callouts .co.co-2 .num { color: var(--accent-2-ink); }

/* ============================================================
   Tag line — single takeaway (written, not generated).
   Lands alone on step 3, once the full artifact + legend are up.
   Space is reserved (min-height) so the reveal never reflows.
   ============================================================ */
.s-agents-md .tag-line {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 56px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s cubic-bezier(.2, .7, .2, 1);
}
.s-agents-md[data-step="3"] .tag-line {
  opacity: 1;
  visibility: visible;
}
.s-agents-md .tag-line .lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.s-agents-md .tag-line .quotes {
  position: relative;
  min-height: 40px;
}
.s-agents-md .tag-line .quote {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--fg);
  letter-spacing: -0.005em;
  text-wrap: balance;
}
.s-agents-md .tag-line .quote em {
  font-style: normal;
  color: var(--accent-ink);
}

/* ============================================================
   Print — flatten the step reveal to its final (step-3) composite
   so the PDF handout shows the whole slide: file + legend + takeaway,
   with the step-0 concept hero hidden. Also drop heavy shadows so
   Chromium's page.pdf() doesn't rasterise them as opaque rectangles.
   ============================================================ */
@media print {
  .s-agents-md .agents-panel,
  .s-agents-md .callouts .co { box-shadow: none; }
  .s-agents-md .agents-panel,
  .s-agents-md .callouts {
    opacity: 1 !important;
    visibility: visible !important;
    animation: none !important;
  }
  .s-agents-md .tag-line {
    opacity: 1 !important;
    visibility: visible !important;
  }
  .s-agents-md .map-intro {
    opacity: 0 !important;
    visibility: hidden !important;
  }
}

/* The Map pillar watermark (.pillar-watermark.map-watermark) is
   defined in shared.css — same glyph treatment as the Roads slides. */

/* ============================================================
   Filename cycler — THIS SLIDE ONLY.
   Departure-board vertical roll through equivalent agent-
   instruction filenames. Signals "whatever your agent reads,"
   not a Claude-specific convention. Lives in the step-0 concept
   hero (.map-intro .mi-files), where the "what is this file" beat
   is made — so it reinforces the point instead of competing with
   the artifact or the speaker.

   DETERMINISM: scripts/lib/deck.js settleAnimations() treats an
   infinite loop as already-settled and captures an ARBITRARY
   frame. So the track is PINNED to frame 0 (AGENTS.md) in every
   capture context — deck-stage[no-rail] covers the PNG screenshot
   + snapshot:diff paths, @media print covers export:pdf — and it
   animates only in a live browser.
   ============================================================ */
.s-agents-md .fname-cycle {
  display: inline-block;
  position: relative;
  height: 1em;
  overflow: hidden;
  vertical-align: bottom;
  min-width: 12.5ch;          /* widest token: ".cursorrules" */
  text-align: left;
}
.s-agents-md .fname-track {
  display: flex;
  flex-direction: column;
  animation: fname-roll 12s cubic-bezier(.6, 0, .2, 1) infinite;
}
.s-agents-md .fname-track > span {
  display: block;
  height: 1em;
  line-height: 1em;
  white-space: nowrap;
}
@keyframes fname-roll {
  0%,   22%  { transform: translateY(0); }
  25%,  47%  { transform: translateY(-1em); }
  50%,  72%  { transform: translateY(-2em); }
  75%,  97%  { transform: translateY(-3em); }
  100%       { transform: translateY(-4em); }  /* lands on repeated AGENTS.md */
}

/* Freeze to AGENTS.md: reduced-motion users + all capture tools. */
@media (prefers-reduced-motion: reduce) {
  .s-agents-md .fname-track { animation: none; transform: translateY(0); }
}
@media print {
  .s-agents-md .fname-track { animation: none; transform: translateY(0); }
}
deck-stage[no-rail] .s-agents-md .fname-track {
  animation: none !important;
  transform: translateY(0) !important;
}