/* Shared theme for the d2bot history decks (reveal.js 5.x).
   Aesthetic: a research lab's "sim viewer" — dark ink, warm parchment type, an elegant
   display serif (Fraunces) paired with a technical mono (JetBrains Mono), era color-coding. */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400..700;1,9..144,400..600&family=Newsreader:ital,opsz@0,6..72;1,6..72&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  --ink: #0e1014;
  --ink2: #161922;
  --panel: #1b1f2a;
  --line: #2b3140;
  --paper: #ece8df;       /* main text */
  --muted: #9a9686;       /* secondary text */
  --gold: #ffb454;        /* accent / milestones */
  --commit: #7aa2ff;
  --slack: #ffb454;
  --doc: #5ad19a;
  --release: #ff7a90;
  /* era palette 2020 -> 2026 */
  --e2020: #ff7a90; --e2021: #ffb454; --e2022: #ffd34e;
  --e2023: #9ad36a; --e2024: #5ad19a; --e2025: #56c6e6; --e2026: #7aa2ff;
}

.reveal { font-family: 'Newsreader', Georgia, serif; color: var(--paper);
  font-size: 30px; font-weight: 400; }
.reveal .slides { text-align: left; }
.reveal-viewport {
  background:
    radial-gradient(1200px 700px at 75% -10%, #1a1f2b 0%, transparent 60%),
    radial-gradient(900px 600px at 0% 110%, #181c26 0%, transparent 55%),
    var(--ink);
}
/* faint network-node texture */
.reveal-viewport::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; opacity: 0.05;
  background-image: radial-gradient(var(--paper) 1px, transparent 1.4px);
  background-size: 46px 46px;
}

.reveal h1, .reveal h2, .reveal h3 {
  font-family: 'Fraunces', Georgia, serif; color: var(--paper);
  font-weight: 600; letter-spacing: -0.01em; text-transform: none; line-height: 1.05;
  text-shadow: none; margin: 0 0 .35em;
}
.reveal h1 { font-size: 2.4em; }
.reveal h2 { font-size: 1.7em; }
.reveal h3 { font-size: 1.15em; color: var(--gold); font-weight: 600; }
.reveal p, .reveal li { line-height: 1.4; }
.reveal a { color: var(--gold); text-decoration: none; }
.reveal em { font-style: italic; color: #fff; }
.reveal strong { color: #fff; font-weight: 600; }
.mono { font-family: 'JetBrains Mono', monospace; }
.muted { color: var(--muted); }
.center { text-align: center; }
.kicker { font-family: 'JetBrains Mono', monospace; font-size: .5em; letter-spacing: .28em;
  text-transform: uppercase; color: var(--muted); }

/* progress bar / controls in gold */
.reveal .progress { color: var(--gold); height: 4px; }
.reveal .controls { color: var(--gold); }
.reveal .slide-number { background: transparent; color: var(--muted);
  font-family: 'JetBrains Mono', monospace; }

/* --- cover --- */
.cover { text-align: center; }
.cover .logo { width: 200px; height: auto; margin: 0 auto .4em; display: block; filter: drop-shadow(0 6px 30px rgba(255,180,84,.25)); }
.cover .wordmark { display: block; margin: 0 auto; width: min(600px, 80%); height: auto;
  filter: invert(1) sepia(.14) saturate(1.3) brightness(1.03) drop-shadow(0 6px 34px rgba(255,180,84,.22)); }
.cover h1 { font-size: 3.1em; }
.cover .sub { color: var(--muted); font-size: 1em; margin-top: .3em; }

/* --- era chapter divider --- */
.era { text-align: center; }
.era .year { font-family: 'JetBrains Mono', monospace; font-size: 4.2em; font-weight: 600;
  line-height: 1; color: var(--era, var(--gold)); text-shadow: 0 4px 40px color-mix(in srgb, var(--era, var(--gold)) 40%, transparent); }
.era .title { font-family: 'Fraunces', serif; font-size: 1.9em; margin-top: .1em; }
.era .blurb { color: var(--muted); max-width: 24em; margin: .5em auto 0; font-size: .78em; }
.era-badge { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: .5em;
  letter-spacing: .2em; text-transform: uppercase; padding: .25em .7em; border-radius: 99px;
  border: 1px solid var(--era, var(--gold)); color: var(--era, var(--gold)); }

/* --- milestone list --- */
.miles { list-style: none; margin: 0; padding: 0; }
.miles li { display: flex; gap: .7em; padding: .26em 0;
  border-bottom: 1px solid var(--line); align-items: baseline; }
.miles .d { flex: 0 0 auto; min-width: 3.6em; font-family: 'JetBrains Mono', monospace;
  font-size: .58em; color: var(--era, var(--gold)); white-space: nowrap; text-transform: uppercase; letter-spacing: .04em; }
.miles .t { flex: 1; font-size: .74em; line-height: 1.32; }
.miles .who { color: var(--muted); font-size: .74em; }

/* --- quote card --- */
.quote { background: linear-gradient(180deg, var(--panel), var(--ink2));
  border-left: 3px solid var(--gold); border-radius: 10px; padding: .9em 1.1em;
  box-shadow: 0 14px 40px rgba(0,0,0,.35); }
.quote .q { font-family: 'Fraunces', serif; font-style: italic; font-size: 1.05em; color: #fff; line-height: 1.32; }
.quote .by { font-family: 'JetBrains Mono', monospace; font-size: .56em; color: var(--muted);
  margin-top: .7em; letter-spacing: .04em; }

/* --- stat blocks (numbers deck) --- */
.stat { text-align: center; }
.stat .n { font-family: 'JetBrains Mono', monospace; font-weight: 600; font-size: 2.7em;
  color: var(--gold); line-height: 1; }
.stat .l { color: var(--muted); font-size: .62em; text-transform: uppercase; letter-spacing: .12em; margin-top: .35em; }
.grid { display: grid; gap: 1.2em; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g2 { grid-template-columns: 1fr 1fr; align-items: center; }
.chart { width: 100%; height: auto; display: block; }
.hero { width: 100%; max-height: 94vh; display: block; border-radius: 8px; }

/* --- flow / through-line (idea deck) --- */
.flow { display: flex; flex-wrap: wrap; gap: .5em; align-items: stretch; justify-content: center; }
.node { background: var(--panel); border: 1px solid var(--line); border-top: 3px solid var(--era, var(--gold));
  border-radius: 10px; padding: .6em .8em; min-width: 6.5em; text-align: center; }
.node .k { font-family: 'JetBrains Mono', monospace; font-size: .5em; color: var(--muted); }
.node .v { font-family: 'Fraunces', serif; font-size: .8em; margin-top: .2em; }
.arrow { align-self: center; color: var(--muted); font-size: 1.2em; }

/* --- labeled image slot (auto-fallback if file missing) --- */
.slot { margin: 0; position: relative; }
.slot img { width: 100%; border-radius: 10px; display: block; border: 1px solid var(--line); }
.slot.empty img { display: none; }
.slot.empty::before {
  content: "📷  drop illustration here"; display: flex; align-items: center; justify-content: center;
  min-height: 200px; border: 2px dashed var(--line); border-radius: 10px; color: var(--muted);
  font-family: 'JetBrains Mono', monospace; font-size: .5em; letter-spacing: .1em; background: rgba(255,255,255,.02);
}
.slot.sm.empty::before { min-height: 130px; }
.slot figcaption { font-family: 'JetBrains Mono', monospace; font-size: .5em; color: var(--muted);
  margin-top: .5em; text-align: center; }
/* 12-tile lab collage: uniform tile height so three rows fit */
.labgrid .slot img { height: 118px; object-fit: cover; object-position: top; }
.labgrid .slot figcaption { margin-top: .25em; }

/* --- person profile card (people grids) --- */
.person { background: linear-gradient(180deg, var(--panel), var(--ink2));
  border: 1px solid var(--line); border-top: 3px solid var(--era, var(--gold));
  border-radius: 12px; padding: .85em 1em; box-shadow: 0 10px 30px rgba(0,0,0,.3); }
.person .pname { font-family: 'Fraunces', serif; font-size: 1.15em; color: #fff; line-height: 1.1; }
.person .prole { font-family: 'JetBrains Mono', monospace; font-size: .46em; letter-spacing: .08em;
  text-transform: uppercase; color: var(--era, var(--gold)); margin-top: .35em; }
.person .pfocus { font-size: .6em; color: var(--paper); margin-top: .55em; line-height: 1.38; }
.person .pq { font-family: 'Fraunces', serif; font-style: italic; font-size: .6em; color: var(--muted);
  margin-top: .6em; border-top: 1px solid var(--line); padding-top: .5em; line-height: 1.32; }

/* utility */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6em; align-items: start; }
.small { font-size: .8em; } .tiny { font-size: .62em; }
.tag { font-family: 'JetBrains Mono', monospace; font-size: .55em; color: var(--muted);
  border: 1px solid var(--line); border-radius: 99px; padding: .15em .6em; margin-right: .3em; }