/* LLM-Assisted Analysis at the UC AF
 *
 * UChicago Analysis Facility theme.
 * Palette: UChicago Maroon (#800000) primary on warm off-white,
 * teal + slate cool accents for code/diagrams. Serif display for
 * institutional moments, Inter for body, JetBrains Mono for code.
 *
 * All font sizes use pt (points) for predictable fixed-size slides.
 */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,500;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ===========================================
   CSS VARIABLES
   =========================================== */
:root {
  /* Backgrounds */
  --background-color: #FCFBF9;          /* warm off-white */
  --section-divider-bg: #800000;        /* maroon dividers, white text */

  /* Typography */
  --display-font: "Source Serif 4", Georgia, serif;
  --heading-font: "Inter", Helvetica, sans-serif;
  --body-font: "Inter", Helvetica, sans-serif;
  --mono-font: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --base-font-size: 32px;
  --text-size: 16pt;
  --h1-size: 48pt;
  --h2-size: 32pt;
  --h3-size: 22pt;
  --footnote-size: 11pt;

  /* Colors */
  --maroon: #800000;
  --maroon-dark: #5C0000;
  --maroon-soft: #f3e6e6;     /* maroon-tinted fill */
  --teal: #1F6F78;
  --teal-soft: #e4f0f1;
  --slate: #2D3748;
  --gold: #B49759;            /* warm metallic accent, used sparingly */

  --primary-color: #800000;
  --secondary-color: #1F6F78;
  --text-color: #1A1A1A;
  --muted-color: #6B6B6B;
  --line-color: #D8D2CC;

  /* Layout */
  --slide-padding: 60px;
  --slide-padding-top: 40px;
  --content-gap: 22px;
  --box-radius: 10px;
}

/* ===========================================
   BASE
   =========================================== */
.reveal {
  font-family: var(--body-font);
  font-size: var(--base-font-size);
}

.reveal strong, .reveal b { font-weight: 700; color: inherit; }

.reveal-viewport { background-color: var(--background-color); }

.reveal-viewport.is-section-divider .slide-background.present {
  background-color: var(--section-divider-bg) !important;
}

.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6 {
  font-family: var(--heading-font);
  text-transform: none;
  color: var(--text-color);
  font-weight: 700;
  line-height: 1.15;
}

.reveal h1 { font-size: var(--h1-size); }
.reveal h2 {
  font-size: var(--h2-size);
  margin-bottom: 0;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--maroon);
}
.reveal h2 .accent { color: var(--maroon); }
.reveal h3 { font-size: var(--h3-size); color: var(--maroon-dark); }

.reveal p, .reveal li, .reveal td, .reveal th, .reveal blockquote {
  font-size: var(--text-size);
  color: var(--text-color);
  line-height: 1.45;
}

/* Underlined by default -- .reveal code is also teal, so an unstyled link is
   visually indistinguishable from styled-but-inert code text. The underline is
   the only reliable "this is clickable" signal at a glance or projected on a screen. */
.reveal a { color: var(--teal); text-decoration: underline; text-decoration-color: rgba(31,111,120,0.45); text-decoration-thickness: 1px; }
.reveal a:hover { text-decoration-color: currentColor; }

/* ===========================================
   LISTS
   =========================================== */
.reveal ul { list-style: none; padding-left: 0; margin: 12px 0; }
.reveal ol { margin: 12px 0 12px 1.1em; }
.reveal ul li { position: relative; padding-left: 26px; margin-bottom: 9px; }
.reveal ul li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 9px;
  height: 9px;
  background: var(--maroon);
  border-radius: 2px;            /* small square = sharper, more technical */
  transform: rotate(45deg);
}
.reveal ul ul { margin: 6px 0; }
.reveal ul ul li::before { background: var(--teal); width: 7px; height: 7px; }
.reveal li::marker { color: var(--maroon); }
.reveal blockquote p { font-size: inherit; }

/* ===========================================
   SLIDE LAYOUT
   =========================================== */
.reveal .slides section {
  height: 100%;
  display: flex !important;
  flex-direction: column !important;
  padding: var(--slide-padding-top) var(--slide-padding) var(--slide-padding) var(--slide-padding) !important;
  box-sizing: border-box;
  text-align: left;
}
.reveal .slides section.stack { padding: 0 !important; }

.reveal .slides section > .content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: var(--content-gap);
  text-align: left;
  min-height: 0;
}

.reveal .slides section > .footnote {
  position: absolute;
  bottom: 14px;
  /* left has extra clearance beyond --slide-padding so a wrapped 2nd line never
     collides with the bottom-left slide number (its box can render text out to ~60px) */
  left: 105px;
  right: var(--slide-padding);
  font-size: var(--footnote-size);
  color: var(--muted-color);
}

/* Eyebrow / kicker label above a title */
.reveal .kicker {
  font-family: var(--heading-font);
  font-size: 12pt;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 4px 0;
}

/* ===========================================
   SECTION DIVIDERS - white on maroon
   =========================================== */
.reveal .slides section.section-divider {
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: flex-start !important;
  text-align: left;
  padding-left: 90px !important;
}
.reveal .slides section.section-divider h1 {
  font-family: var(--display-font);
  font-size: 54pt;
  font-weight: 600;
  color: #ffffff;
  text-align: left;
  line-height: 1.1;
}
.reveal .slides section.section-divider h2 {
  border: none;
  color: #ffffff;
}
.reveal .slides section.section-divider p,
.reveal .slides section.section-divider li { color: #F3E3E3; }
.reveal .slides section.section-divider .kicker { color: var(--gold); }
.reveal .slides section.section-divider .section-num {
  font-family: var(--display-font);
  font-size: 20pt;
  color: var(--gold);
  margin-bottom: 10px;
}

/* ===========================================
   TITLE SLIDE (id=title) - special, light with maroon bar
   =========================================== */
.reveal .slides section#title {
  background: var(--background-color);
  justify-content: center !important;
  align-items: flex-start !important;
}
.reveal .slides section#title h1 {
  font-family: var(--display-font);
  font-weight: 700;
  font-size: 50pt;
  color: var(--maroon);
  line-height: 1.08;
  border-left: 8px solid var(--maroon);
  padding-left: 28px;
  text-align: left;
}
.reveal .slides section#title .subtitle {
  font-size: 22pt;
  color: var(--slate);
  margin-top: 18px;
  padding-left: 36px;
}
.reveal .slides section#title .byline {
  font-size: 15pt;
  color: var(--muted-color);
  padding-left: 36px;
  margin-top: 6px;
}

/* Override the centered divider rule for the title (we want left-mid) */
.reveal .slides section#title.section-divider {
  align-items: flex-start !important;
  justify-content: center !important;
  padding-left: 70px !important;
}

/* ===========================================
   TEXT UTILITIES
   =========================================== */
.text-lg  { font-size: 18pt !important; }
.text-xl  { font-size: 20pt !important; }
.text-2xl { font-size: 24pt !important; }
.text-3xl { font-size: 28pt !important; }
.text-4xl { font-size: 32pt !important; }
.text-muted { color: var(--muted-color) !important; }
.text-maroon { color: var(--maroon) !important; }
.text-teal { color: var(--teal) !important; }
.text-center { text-align: center !important; }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.1em; }
.font-light { font-weight: 300; }
.font-bold { font-weight: 700; }
.mono { font-family: var(--mono-font); }

/* ===========================================
   BLOCKQUOTES
   =========================================== */
.reveal blockquote {
  border-left: 4px solid var(--maroon);
  padding: 6px 0 6px 22px;
  margin: 16px 0;
  font-style: italic;
  background: none;
  box-shadow: none;
  width: 100%;
  max-width: none;
  font-family: var(--display-font);
  font-size: 22pt;
  line-height: 1.3;
}
.reveal blockquote cite {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-family: var(--body-font);
  font-size: 14pt;
  color: var(--muted-color);
}

/* ===========================================
   CODE / COMMAND BOXES
   =========================================== */
.reveal pre {
  width: 100%;
  margin: 10px 0;
  box-shadow: none;
  font-size: 13.5pt;
}
.reveal pre code,
.reveal code.block {
  display: block;
  font-family: var(--mono-font);
  font-size: 13.5pt;
  line-height: 1.5;
  background: #FBF4F4;
  border: 1px solid var(--line-color);
  border-left: 4px solid var(--maroon);
  border-radius: 6px;
  padding: 14px 18px;
  color: var(--slate);
  max-height: none;
  overflow: visible;
  white-space: pre-wrap;
  word-break: break-word;
}
.reveal code {
  font-family: var(--mono-font);
  font-size: 0.9em;
  background: var(--teal-soft);
  color: var(--teal);
  padding: 1px 6px;
  border-radius: 4px;
}
/* inline code inside a styled code block shouldn't double-style */
.reveal pre code code { background: none; padding: 0; }
.reveal .cmd-prompt { color: var(--maroon); font-weight: 700; }
.reveal .cmt { color: var(--muted-color); font-style: italic; }
.reveal .kw { color: var(--maroon); font-weight: 600; }

/* ===========================================
   CARDS
   =========================================== */
.card {
  background: #ffffff;
  border: 1px solid var(--line-color);
  border-top: 4px solid var(--maroon);
  border-radius: var(--box-radius);
  padding: 16px 18px;
  box-shadow: 0 2px 10px rgba(92, 0, 0, 0.06);
}
.card.teal { border-top-color: var(--teal); }
.card h3 { margin: 0 0 6px 0; font-size: 18pt; }
.card .card-icon { font-size: 22pt; color: var(--maroon); margin-bottom: 6px; }
.card.teal .card-icon { color: var(--teal); }
.card p, .card li { font-size: 14pt; }

/* ===========================================
   TAGS / PILLS
   =========================================== */
.tag {
  display: inline-block;
  font-family: var(--heading-font);
  font-size: 12pt;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--maroon-soft);
  color: var(--maroon-dark);
  margin: 2px 4px 2px 0;
}
.tag.teal { background: var(--teal-soft); color: var(--teal); }
.tag.slate { background: #E7EAEF; color: var(--slate); }

/* ===========================================
   STAT BOXES
   =========================================== */
.stat { text-align: center; }
.stat .num {
  font-family: var(--display-font);
  font-size: 42pt;
  font-weight: 700;
  color: var(--maroon);
  line-height: 1;
}
.stat .label { font-size: 13pt; color: var(--muted-color); margin-top: 4px; }

/* ===========================================
   TABLES
   =========================================== */
.reveal table { width: 100%; border-collapse: collapse; margin: 8px 0; }
.reveal table th {
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 14pt;
  text-align: left;
  background: var(--maroon);
  color: #fff;
  padding: 8px 12px;
}
.reveal table td {
  font-size: 13.5pt;
  padding: 7px 12px;
  border-bottom: 1px solid var(--line-color);
  vertical-align: top;
}
.reveal table tr:nth-child(even) td { background: #F6F1ED; }
.reveal table td code { font-size: 12.5pt; }

/* ===========================================
   DIAGRAM NODES + FLOW
   =========================================== */
.node {
  background: #fff;
  border: 2px solid var(--maroon);
  border-radius: 8px;
  padding: 10px 14px;
  text-align: center;
  font-family: var(--heading-font);
  font-weight: 600;
  font-size: 15pt;
  color: var(--maroon-dark);
}
.node.teal { border-color: var(--teal); color: var(--teal); }
.node.slate { border-color: var(--slate); color: var(--slate); }
.node.fill { background: var(--maroon); color: #fff; border-color: var(--maroon); }
.node .sub { display:block; font-family: var(--body-font); font-weight: 400; font-size: 11.5pt; color: var(--muted-color); margin-top: 3px; }
.node.fill .sub { color: #f0dada; }
.flow-arrow { color: var(--maroon); font-size: 24pt; display: flex; align-items: center; justify-content: center; }

/* ===========================================
   IMAGE / SCREENSHOT PLACEHOLDER
   =========================================== */
.shot {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 220px;
  border: 2px dashed var(--maroon);
  border-radius: var(--box-radius);
  background: repeating-linear-gradient(45deg, #fbf4f4, #fbf4f4 14px, #f6ebeb 14px, #f6ebeb 28px);
  color: var(--maroon-dark);
  text-align: center;
  padding: 18px;
}
.shot i { font-size: 30pt; margin-bottom: 8px; }
.shot .shot-label { font-family: var(--heading-font); font-weight: 700; font-size: 14pt; }
.shot .shot-hint { font-size: 11.5pt; color: var(--muted-color); margin-top: 4px; }
.shot img { max-width: 100%; max-height: 100%; border-radius: 6px; }
.shot video { max-width: 100%; max-height: 100%; border-radius: 6px; }
/* When a .shot holds a real asset, drop the dashed placeholder look */
.shot.filled { border-style: solid; border-color: var(--line-color); background: #000; padding: 6px; }
.shot.filled.light { background: #fff; }

/* callout box for "why it matters" / key insight */
.callout {
  background: var(--maroon-soft);
  border-radius: var(--box-radius);
  padding: 14px 18px;
  border-left: 5px solid var(--maroon);
}
.callout.teal { background: var(--teal-soft); border-left-color: var(--teal); }
.callout p, .callout li { font-size: 15pt; }
.callout .label {
  font-family: var(--heading-font); font-weight: 700; font-size: 11pt;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--maroon); margin-bottom: 4px;
}
.callout.teal .label { color: var(--teal); }

/* ===========================================
   SLIDE NUMBER — bottom-left
   =========================================== */
.reveal .slide-number {
  background: none;
  color: var(--muted-color);
  font-family: var(--body-font);
  font-size: 11pt;
  left: 14px;
  right: auto;
  bottom: 10px;
}
.reveal .slide-number a { color: var(--muted-color); }

/* ===========================================
   BUILD STAMP (deploy.yml injects sha + date, links to the repo)
   top-right, out of the way of titles and the bottom-left slide number
   =========================================== */
.build-stamp {
  position: fixed;
  right: 14px;
  top: 10px;
  z-index: 40;
  font-family: var(--body-font);
  font-size: 9.5pt;
}
.build-stamp a {
  color: var(--muted-color);
  opacity: 0.6;
  text-decoration: none;
}
.build-stamp a:hover { opacity: 1; }

/* ===========================================
   THEME LEAD-IN (§3 sub-section openers: theme-trust/ops/commons)
   Not a title slide, not a full divider — large text, no boxes,
   vertically + horizontally centered on the normal page background.
   =========================================== */
.theme-lead {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.theme-lead .theme-num {
  font-family: var(--display-font);
  font-size: 15pt;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 10px;
}
.theme-lead h2 {
  font-size: 42pt;
  margin: 0;
  max-width: 900px;
}
.theme-lead .theme-thesis {
  font-size: 17pt;
  max-width: 760px;
  margin-top: 24px;
  color: var(--text-color);
}
.theme-lead .theme-covers {
  font-size: 12.5pt;
  color: var(--muted-color);
  margin-top: 20px;
}

/* ── MCP portal live diagram (slide: proof-gateway) ─────────────────────
   Faithful port of the mcp-portal.af.uchicago.edu landing-page diagram
   (af-mcp-platform: portal/src/pages/index.astro styles + gatewayPulse.ts
   colors). Dark panel deliberately keeps the portal's own palette so the
   slide reads as "the real product", not a redrawn figure. */
.pdiag-panel {
  background: #0a0e1a;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 14px 18px 18px;
}
.reveal .pdiag-url {
  font-family: var(--mono-font);
  font-size: 8.5pt;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #00d4c8;
  margin: 0 0 12px;
}
.pdiag {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  --af-surface: #111827;
  --af-border: #1f2937;
  --af-dim: #9ca3af;
  --af-label: #838d99;
  --af-text: #e8ecf0;
  --af-teal: #00d4c8;
  --af-red: #ef4444;
  --af-green: #10b981;
}
.pdiag .d-node {
  font-family: var(--mono-font);
  font-size: 10.5pt;
  color: var(--af-text);
  background: var(--af-surface);
  border: 1px solid var(--af-border);
  border-radius: 4px;
  padding: 8px 22px;
  transition: border-color 200ms, box-shadow 200ms;
}
.pdiag .is-pulse-active {
  border-color: var(--af-teal) !important;
  box-shadow: 0 0 16px 2px rgba(0, 212, 200, 0.3);
}
.pdiag .is-pulse-denied {
  border-color: var(--af-red) !important;
  box-shadow: 0 0 16px 2px rgba(239, 68, 68, 0.3);
  animation: pdiag-denied-buzz 160ms ease-in-out 3;
}
@keyframes pdiag-denied-buzz {
  0%, 100% { box-shadow: 0 0 16px 2px rgba(239, 68, 68, 0.3); }
  50% { box-shadow: 0 0 24px 4px rgba(239, 68, 68, 0.65); }
}
.pdiag .d-client { display: inline-flex; align-items: center; gap: 6px; color: var(--af-dim); }
.pdiag .d-gateway {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  border-color: var(--af-teal);
}
.pdiag .d-gwname { font-weight: 700; font-size: 11.5pt; letter-spacing: 0.02em; color: var(--af-text); }
.pdiag .d-tags { display: flex; gap: 7px; }
.pdiag .d-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--mono-font);
  font-size: 7.5pt;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--af-label);
  border: 1px solid var(--af-border);
  border-radius: 2px;
  padding: 2.5px 7px;
}
.pdiag .d-icon { position: relative; display: inline-block; width: 11px; height: 11px; flex-shrink: 0; }
.pdiag .d-spin, .pdiag .d-check, .pdiag .d-x {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 150ms;
}
.pdiag .d-spin { border: 1.5px solid var(--af-border); border-top-color: var(--af-teal); border-radius: 50%; }
.pdiag .d-check { color: var(--af-green); }
.pdiag .d-x { color: var(--af-red); }
.pdiag [data-state='checking'] .d-spin { opacity: 1; animation: pdiag-spin 550ms linear infinite; }
.pdiag [data-state='ok'] .d-check { opacity: 1; }
.pdiag [data-state='fail'] .d-x { opacity: 1; }
@keyframes pdiag-spin { to { transform: rotate(360deg); } }
.pdiag .d-link { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 5px 0; }
.pdiag .d-link::before, .pdiag .d-link::after { content: ''; width: 1px; height: 11px; background: var(--af-border); }
.pdiag .d-linklabel {
  font-family: var(--mono-font);
  font-size: 7.5pt;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--af-teal);
}
.pdiag .d-stem { width: 1px; height: 18px; background: var(--af-border); }
.pdiag .d-fanout {
  display: flex;
  justify-content: center;
  gap: 18px;
  width: 100%;
  padding-top: 18px;
  border-top: 1px solid var(--af-border);
}
.pdiag .d-branch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono-font);
  font-size: 9.5pt;
  color: var(--af-text);
  background: var(--af-surface);
  border: 1px solid var(--af-border);
  border-radius: 4px;
  padding: 7px 14px;
  transition: border-color 200ms, box-shadow 200ms;
}
.pdiag .d-branch::before {
  content: '';
  position: absolute;
  top: -18px;
  left: 50%;
  width: 1px;
  height: 18px;
  background: var(--af-border);
}
.pdiag .d-pulse {
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  margin: -4px;
  border-radius: 50%;
  background: var(--af-teal);
  box-shadow: 0 0 10px 2px rgba(0, 212, 200, 0.7);
  opacity: 0;
  pointer-events: none;
}
.pdiag .d-cred { position: absolute; top: 0; left: 0; font-size: 8.5pt; padding: 6px 11px; opacity: 0; pointer-events: none; }
.pdiag .d-chat {
  position: absolute;
  top: 0;
  right: -4px;
  display: flex;
  flex-direction: column;
  width: 210px;
  pointer-events: none;
}
.pdiag .d-chatline {
  display: flex;
  align-items: baseline;
  gap: 5px;
  height: 0;
  overflow: hidden;
  opacity: 0;
  font-family: var(--mono-font);
  font-size: 8pt;
  padding: 0 7px;
  border-left: 1px solid var(--af-border);
}
.pdiag .d-chatrole { flex-shrink: 0; color: var(--af-teal); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.pdiag .d-chattext { color: var(--af-dim); }
@media (prefers-reduced-motion: reduce) {
  .pdiag [data-state='checking'] .d-spin, .pdiag .is-pulse-denied { animation: none; }
}