:root {
  --ivory: #f4efe6;
  --paper: #fbf8f1;
  --maroon: #4c0013;
  --maroon-2: #741a32;
  --navy: #10233f;
  --teal: #0f7f80;
  --blue: #2d86b7;
  --coral: #eb5946;
  --amber: #f2aa00;
  --ink: #172132;
  --muted: #5f6772;
  --line: rgba(16, 35, 63, .16);
  --shadow: 0 30px 90px rgba(14, 24, 39, .28);
}
* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }
body {
  overflow: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 12%, rgba(45,134,183,.22), transparent 28%),
    radial-gradient(circle at 86% 82%, rgba(76,0,19,.24), transparent 30%),
    #0b1526;
  font-family: "Source Sans 3", "Avenir Next", sans-serif;
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
button { font: inherit; }
.deck-shell { position: fixed; inset: 0; display: grid; place-items: center; }
.deck {
  position: relative;
  width: 1600px;
  height: 900px;
  overflow: hidden;
  transform: scale(var(--deck-scale, 1));
  transform-origin: center;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 24px;
  padding: 58px 72px 72px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateX(28px);
  transition: opacity .32s ease, transform .42s cubic-bezier(.2,.75,.2,1), visibility .32s;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(16,35,63,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,35,63,.035) 1px, transparent 1px);
  background-size: 32px 32px;
}
.slide::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 12px; background: var(--maroon); z-index: 4; }
.slide.active { opacity: 1; visibility: visible; transform: translateX(0); z-index: 2; }
.slide.active .visual > * { animation: rise .52s both; }
.slide.active .visual > *:nth-child(2) { animation-delay: .05s; }
.slide.active .visual > *:nth-child(3) { animation-delay: .1s; }
.slide.active .visual > *:nth-child(4) { animation-delay: .15s; }
.slide.active .visual > *:nth-child(5) { animation-delay: .2s; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
header { position: relative; z-index: 3; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: "IBM Plex Sans Condensed", "Avenir Next Condensed", sans-serif; }
h1 { margin-bottom: 24px; font-size: 78px; line-height: .98; letter-spacing: -.035em; }
h2 { margin-bottom: 0; max-width: 1400px; font-size: 58px; line-height: 1.04; letter-spacing: -.025em; }
h3 { font-size: 30px; line-height: 1.05; }
p { font-size: 27px; line-height: 1.35; }
small { font-size: 19px; line-height: 1.2; }
.eyebrow { margin-bottom: 10px; color: var(--maroon-2); font-family: "IBM Plex Mono", monospace; font-size: 18px; font-weight: 600; letter-spacing: .13em; }
.dark { color: #fff; background: var(--navy); }
.dark .eyebrow { color: #ffd79c; }
.notes { display: none; }
.full-bleed { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.full-bleed.muted { filter: saturate(.78) contrast(.92) brightness(.9); }
.image-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(9,20,38,.96) 0%, rgba(9,20,38,.85) 35%, rgba(9,20,38,.2) 68%, transparent 100%); }
.image-shade.left-heavy { background: linear-gradient(90deg, rgba(7,18,34,.97) 0%, rgba(7,18,34,.84) 38%, rgba(7,18,34,.12) 68%, transparent 100%); }
.hero-copy { position: relative; z-index: 2; align-self: center; width: 820px; }
.hero-thesis { width: 690px; margin-bottom: 32px; font-size: 31px; }
.course-facts { display: flex; gap: 12px; flex-wrap: wrap; }
.course-facts span { padding: 9px 16px; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; background: rgba(9,20,38,.45); font: 600 18px "IBM Plex Mono", monospace; }
.brand-footer { position: absolute; z-index: 8; left: 46px; right: 48px; bottom: 20px; height: 40px; display: flex; align-items: center; justify-content: space-between; color: var(--ink); font: 600 15px "IBM Plex Mono", monospace; letter-spacing: .02em; }
.dark .brand-footer, .image-slide .brand-footer { color: #fff; text-shadow: 0 1px 8px rgba(0,0,0,.8); }
.brand-left, .brand-right, .slide-meta { display: flex; align-items: center; gap: 12px; }
.brand-chip { display: flex; align-items: center; gap: 10px; padding: 5px 10px; border: 1px solid rgba(255,255,255,.35); border-radius: 8px; background: rgba(255,255,255,.93); color: var(--ink); text-shadow: none; }
.brand-chip img { max-width: 95px; height: 28px; object-fit: contain; }
.brand-chip img.ncku { width: 34px; }
.time-pill { padding: 4px 10px; border-radius: 999px; background: var(--maroon); color: #fff; text-shadow: none; }
.slide-index { min-width: 55px; text-align: right; }
.source, .citation-note { position: relative; z-index: 3; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.25; }
.dark .source, .dark .citation-note, .image-slide .source { color: rgba(255,255,255,.78); }
.takeaway { display: flex; align-items: center; gap: 20px; padding: 16px 22px; border-left: 8px solid var(--teal); background: rgba(15,127,128,.1); font-size: 27px; }
.takeaway span { color: var(--teal); font: 700 18px "IBM Plex Mono", monospace; letter-spacing: .05em; text-transform: uppercase; }
.bottom-claim { margin: 0; padding: 15px 20px; border-left: 8px solid var(--coral); background: rgba(235,89,70,.1); font-weight: 600; }
.warning-box { padding: 15px 22px; border: 2px solid rgba(235,89,70,.5); border-left-width: 10px; border-radius: 10px; background: rgba(235,89,70,.08); font-size: 23px; }
blockquote { margin: 0; padding-left: 22px; border-left: 7px solid var(--amber); font: 500 31px/1.25 "IBM Plex Sans Condensed", sans-serif; }

.outcome-map { align-self: center; display: grid; grid-template-columns: repeat(9, auto); align-items: center; gap: 12px; }
.outcome-card { width: 238px; min-height: 250px; padding: 28px 24px; border: 2px solid var(--line); border-top: 10px solid var(--teal); border-radius: 14px; background: rgba(255,255,255,.78); box-shadow: 0 12px 32px rgba(16,35,63,.08); }
.outcome-card:nth-of-type(3), .outcome-card:nth-of-type(4) { border-top-color: var(--blue); }
.outcome-card:nth-of-type(5) { border-top-color: var(--coral); }
.outcome-card b { display: block; margin-bottom: 30px; color: var(--maroon); font: 700 44px "IBM Plex Mono", monospace; }
.outcome-card span { font-size: 26px; font-weight: 650; line-height: 1.15; }
.arrow { color: var(--maroon); font-size: 35px; font-weight: 700; }

.semester-map { align-self: center; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; position: relative; padding-bottom: 120px; }
.semester-block { min-height: 300px; padding: 30px 25px; border-radius: 15px; color: #fff; }
.semester-block small { display: block; margin-bottom: 38px; font: 600 17px "IBM Plex Mono", monospace; letter-spacing: .08em; }
.semester-block b { display: block; margin-bottom: 24px; font: 700 32px/1.05 "IBM Plex Sans Condensed", sans-serif; }
.semester-block span { font-size: 22px; line-height: 1.4; }
.semester-block.maroon { background: var(--maroon); }.semester-block.blue { background: var(--blue); }.semester-block.teal { background: var(--teal); }.semester-block.coral { background: var(--coral); }
.evidence-spine { position: absolute; left: 0; right: 0; bottom: 16px; display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); align-items: center; gap: 4px; padding: 20px 25px; border: 2px solid var(--navy); border-radius: 12px; background: var(--paper); }
.evidence-spine strong { color: var(--maroon); font: 700 18px "IBM Plex Mono", monospace; }.evidence-spine span { padding-left: 22px; border-left: 1px solid var(--line); font-size: 22px; font-weight: 600; }

.image-split { display: block; padding: 0; }
.image-split::before { display: none; }
.split-image { position: absolute; top: 0; bottom: 0; width: 58%; height: 100%; object-fit: cover; }
.split-image.right { right: 0; }.split-image.left { left: 0; }.split-image.focus-left { object-position: 24% center; }
.split-copy { position: absolute; z-index: 3; left: 0; top: 0; bottom: 0; width: 48%; padding: 65px 70px 78px; display: flex; flex-direction: column; gap: 24px; background: linear-gradient(90deg, var(--navy) 84%, transparent); color: #fff; }
.split-copy.light-copy { background: linear-gradient(90deg, var(--paper) 86%, rgba(244,239,230,.75), transparent); color: var(--ink); }
.split-copy.right-copy { left: auto; right: 0; width: 55%; padding-left: 115px; background: linear-gradient(90deg, transparent, rgba(244,239,230,.95) 16%, var(--paper) 35%); }
.cost-chart { position: relative; height: 350px; padding: 10px 0 0 28px; }
.cost-chart svg { width: 100%; height: 230px; overflow: visible; }.gridline { fill: none; stroke: rgba(255,255,255,.2); stroke-width: 2; }.curve { fill: none; stroke-width: 8; stroke-linecap: round; }.coral-line { stroke: var(--coral); }.teal-line { stroke: #43c2ba; }.pivot { fill: var(--amber); stroke: #fff; stroke-width: 4; }
.chart-axis { position: absolute; font: 600 15px "IBM Plex Mono", monospace; color: rgba(255,255,255,.7); }.chart-axis.y { left: -10px; top: 105px; transform: rotate(-90deg); }.chart-axis.x { right: 25px; bottom: 90px; }
.legend { display: flex; gap: 28px; font-size: 19px; }.legend span { display: flex; align-items: center; gap: 9px; }.legend i { width: 28px; height: 7px; border-radius: 5px; }.legend i.coral { background: var(--coral); }.legend i.teal { background: #43c2ba; }

.metric-bars { align-self: center; display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.metric-bars article { min-height: 410px; padding: 30px; border: 2px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.82); }
.metric-number { color: var(--maroon); font: 700 76px/1 "IBM Plex Sans Condensed", sans-serif; }
.meter { height: 28px; margin: 22px 0 38px; border-radius: 20px; background: #dce2e4; overflow: hidden; }.meter i { display: block; width: var(--value); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--teal)); }
.metric-bars h3 { margin-bottom: 18px; font-size: 31px; }.metric-bars p { color: var(--muted); font-size: 23px; }
.logic-strip { display: flex; justify-content: center; align-items: center; gap: 24px; padding: 15px; border: 2px solid var(--maroon); border-radius: 12px; color: var(--maroon); font-size: 26px; }.logic-strip span { font-size: 38px; }

.benchmark-panel { align-self: center; display: grid; gap: 20px; padding: 28px 32px; border: 2px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.85); }
.benchmark-row { display: grid; grid-template-columns: 280px 1fr 115px; gap: 22px; align-items: center; }.benchmark-label { font-size: 24px; font-weight: 650; line-height: 1.05; }.benchmark-label small { color: var(--muted); font-weight: 400; }.benchmark-row > b { font: 700 25px "IBM Plex Mono", monospace; }
.bar-track { height: 34px; border-radius: 4px; background: repeating-linear-gradient(90deg, #dde2e5 0, #dde2e5 9.5%, #fff 9.5%, #fff 10%); overflow: hidden; }.bar-track i { display: block; width: var(--value); height: 100%; background: var(--bar); }

.claim-audit { align-self: center; display: grid; grid-template-columns: 260px 1fr; grid-template-rows: auto auto; gap: 24px 42px; }
.accuracy-dial { grid-row: 1 / 3; width: 260px; height: 260px; display: flex; align-items: baseline; justify-content: center; padding-top: 74px; border: 18px solid var(--teal); border-right-color: #d6dcde; border-radius: 50%; position: relative; }.accuracy-dial strong { font: 700 88px/1 "IBM Plex Sans Condensed", sans-serif; }.accuracy-dial > span { font-size: 34px; }.accuracy-dial small { position: absolute; bottom: 48px; font: 600 15px "IBM Plex Mono", monospace; color: var(--muted); }
.claim-context { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 24px 30px; background: var(--navy); color: #fff; border-radius: 14px; }.claim-context p { margin: 0; font: 650 31px "IBM Plex Sans Condensed", sans-serif; }.audit-question { width: 340px; padding: 15px; border: 2px solid var(--amber); border-radius: 9px; font-size: 23px; text-align: center; }
.evidence-holes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }.hole { min-height: 180px; padding: 20px; border: 3px dashed var(--maroon); border-radius: 12px; background: rgba(76,0,19,.05); }.hole b { display: block; margin-bottom: 18px; color: var(--maroon); font: 700 25px "IBM Plex Mono", monospace; }.hole span { font-size: 22px; line-height: 1.2; }
.reveal-item { opacity: 0 !important; transform: translateY(14px) scale(.97) !important; transition: opacity .25s ease, transform .25s ease; }
.show-reveals .reveal-item { opacity: 1 !important; transform: none !important; }

.top-band { position: absolute; z-index: 4; left: 0; right: 0; top: 0; padding: 42px 72px 35px; background: linear-gradient(180deg, rgba(244,239,230,.98) 0%, rgba(244,239,230,.9) 75%, transparent 100%); color: var(--ink); }.top-band h2 { font-size: 54px; }
.stage-overlay { position: absolute; z-index: 4; left: 85px; right: 85px; bottom: 122px; display: flex; align-items: center; justify-content: center; gap: 14px; padding: 16px 20px; border-radius: 15px; background: rgba(10,28,48,.92); color: #fff; }.stage-overlay span { display: flex; align-items: center; gap: 8px; font-size: 22px; font-weight: 600; }.stage-overlay b { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--coral); }.stage-overlay i { color: var(--amber); font-size: 30px; font-style: normal; }
.failure-callout { position: absolute; z-index: 5; right: 90px; top: 205px; width: 380px; padding: 18px 22px; border-left: 9px solid var(--coral); background: rgba(255,255,255,.94); box-shadow: 0 18px 50px rgba(0,0,0,.18); }.failure-callout b { display: block; color: var(--coral); font: 700 20px "IBM Plex Mono", monospace; }.failure-callout span { font-size: 24px; line-height: 1.2; }

.section-slide { display: block; }.section-slide::before { display: none; }.section-copy { position: absolute; z-index: 3; left: 74px; top: 180px; width: 700px; }.section-copy.left { color: var(--ink); }.section-number { margin: 0; color: var(--amber); font: 700 110px/1 "IBM Plex Sans Condensed", sans-serif; opacity: .9; }.section-copy h2 { margin-bottom: 30px; font-size: 70px; }

.two-col { align-self: center; display: grid; grid-template-columns: .95fr 1.05fr; gap: 35px; }.code-card { padding: 30px; border-radius: 16px; background: var(--navy); color: #fff; }.equation { font: 600 31px/1.25 "IBM Plex Mono", monospace; }.equation.large { font-size: 35px; }.code-card .equation { margin-bottom: 24px; color: #8edbd4; }.code-card pre, .right-pipeline pre { margin: 0; padding: 24px; border-radius: 10px; background: #081424; color: #f6eddc; font: 500 22px/1.45 "IBM Plex Mono", monospace; white-space: pre-wrap; }
.flow-diagram { display: grid; grid-template-columns: 1fr auto 1fr auto 1.15fr; align-items: center; gap: 12px; padding: 30px; border: 2px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.8); }.flow-node { display: grid; place-items: center; min-height: 110px; padding: 16px; border: 3px solid var(--blue); border-radius: 12px; text-align: center; font: 650 27px/1.1 "IBM Plex Sans Condensed", sans-serif; }.flow-node small { margin-top: 8px; font-family: "IBM Plex Mono", monospace; }.flow-diagram > span, .training-loop > span { color: var(--maroon); font-size: 32px; }.branch { grid-column: 3 / 6; display: flex; gap: 20px; }.branch b { flex: 1; padding: 13px; border-radius: 8px; color: #fff; text-align: center; background: var(--coral); }.branch b:last-child { background: var(--teal); }.tradeoffs { grid-column: 1 / 6; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }.tradeoffs p { margin: 0; padding: 15px; background: rgba(45,134,183,.1); font-size: 21px; }

.training-visual { align-self: center; display: grid; gap: 22px; }.math-panel { display: flex; align-items: center; gap: 35px; padding: 18px 26px; border-left: 9px solid var(--maroon); background: rgba(76,0,19,.07); }.math-panel > span { font: 700 20px "IBM Plex Mono", monospace; color: var(--maroon); }
.training-loop { position: relative; display: grid; grid-template-columns: repeat(7, auto); align-items: center; gap: 18px; padding: 28px 80px 75px; }.training-loop .flow-node { min-width: 215px; color: #fff; }.maroon-node { background: var(--maroon); border-color: var(--maroon); }.blue-node { background: var(--blue); border-color: var(--blue); }.amber-node { background: #b57a00; border-color: #b57a00; }.teal-node { background: var(--teal); border-color: var(--teal); }.training-loop svg { position: absolute; left: 260px; right: 100px; bottom: 0; width: 900px; height: 80px; }.training-loop svg path { fill: none; stroke: var(--maroon); stroke-width: 4; }.training-loop svg polygon { fill: var(--maroon); }
.definition-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }.definition-grid span { padding: 14px 18px; border: 1px solid var(--line); border-radius: 8px; background: #fff; font-size: 20px; }.definition-grid b { display: block; color: var(--teal); }

.lever-grid { align-self: center; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }.lever-grid article { min-height: 380px; padding: 28px; border: 2px solid var(--line); border-radius: 16px; background: #fff; }.lever-icon { display: grid; place-items: center; width: 70px; height: 70px; margin-bottom: 30px; border-radius: 50%; background: var(--maroon); color: #fff; font: 700 32px "IBM Plex Mono", monospace; }.lever-grid article:nth-child(2) .lever-icon { background: var(--blue); }.lever-grid article:nth-child(3) .lever-icon { background: var(--amber); color: var(--navy); }.lever-grid article:nth-child(4) .lever-icon { background: var(--teal); }.lever-grid h3 { margin-bottom: 14px; }.lever-grid p { min-height: 90px; font-size: 23px; }.lever-grid small { display: block; padding-top: 18px; border-top: 1px solid var(--line); color: var(--maroon); font-weight: 650; }

.agent-pipeline { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 10px; }.agent-pipeline span { padding: 12px 14px; border-radius: 8px; background: var(--blue); color: #fff; font-size: 21px; font-weight: 650; }.agent-pipeline i { color: var(--maroon); font-size: 26px; font-style: normal; }.agent-pipeline .gate { background: var(--maroon); }.definition-box { padding: 20px 24px; border-left: 8px solid var(--teal); background: rgba(255,255,255,.82); }.definition-box b { color: var(--teal); font: 700 19px "IBM Plex Mono", monospace; }.definition-box p { margin: 7px 0 0; font-size: 23px; }

.layer-table { align-self: center; border: 2px solid var(--navy); border-radius: 14px; overflow: hidden; background: #fff; }.table-head, .table-row { display: grid; grid-template-columns: 210px 280px 1fr 1fr; align-items: center; }.table-head { background: var(--navy); color: #fff; font: 600 18px "IBM Plex Mono", monospace; }.table-head span, .table-row > * { padding: 18px 22px; }.table-row { min-height: 105px; border-top: 1px solid var(--line); font-size: 23px; }.table-row b { align-self: stretch; display: flex; align-items: center; color: #fff; font: 700 24px "IBM Plex Sans Condensed", sans-serif; }.table-row.s1 b { background: var(--maroon); }.table-row.s2 b { background: var(--blue); }.table-row.s3 b { background: var(--coral); }.table-row span:last-child { color: var(--maroon); font-weight: 650; }
.stack-equation { display: flex; justify-content: center; align-items: center; gap: 13px; font-size: 24px; }.stack-equation span { padding: 9px 14px; border-radius: 6px; background: rgba(15,127,128,.12); }

.workflow-agent { align-self: center; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }.workflow-agent article { min-height: 410px; padding: 30px; border: 2px solid var(--line); border-radius: 18px; background: #fff; }.workflow-agent h3 { margin-bottom: 6px; font-size: 36px; }.workflow-agent .sub { color: var(--muted); font-size: 22px; }.fixed-flow, .agent-cycle { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 150px; }.fixed-flow span, .agent-cycle span { padding: 16px; border-radius: 9px; background: var(--navy); color: #fff; font-size: 21px; }.agent-cycle span { background: var(--teal); }.fixed-flow i, .agent-cycle i { color: var(--coral); font-size: 27px; font-style: normal; }.formal { padding: 18px; border-radius: 8px; background: var(--ivory); text-align: center; font: 600 28px "IBM Plex Mono", monospace; }

.agent-loop { align-self: center; }.agent-loop svg { width: 100%; height: 500px; }.loop-path { fill: rgba(45,134,183,.05); stroke: var(--blue); stroke-width: 4; stroke-dasharray: 11 9; }.loop-node rect { fill: #fff; stroke: var(--navy); stroke-width: 4; }.loop-node text { fill: var(--navy); font: 700 24px "IBM Plex Sans Condensed", sans-serif; text-anchor: middle; }.loop-node text.small { font: 500 16px "IBM Plex Mono", monospace; }.gate-node rect { fill: #e8f5f2; stroke: var(--teal); }.stop-node rect { fill: #fff0ed; stroke: var(--coral); }.loop-rules { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }.loop-rules span { padding: 13px; border: 1px solid var(--line); border-radius: 7px; background: #fff; text-align: center; font: 600 18px "IBM Plex Mono", monospace; }

.permission-strip { position: absolute; z-index: 4; left: 80px; right: 80px; bottom: 115px; display: grid; grid-template-columns: repeat(7, auto); align-items: center; gap: 12px; padding: 18px; border-radius: 14px; background: rgba(8,24,41,.93); color: #fff; }.permission-strip div { min-width: 220px; padding: 13px 18px; border: 2px solid var(--teal); border-radius: 9px; }.permission-strip div:nth-of-type(2) { border-color: var(--amber); }.permission-strip div:nth-of-type(3) { border-color: var(--blue); }.permission-strip div.locked { border-color: var(--coral); }.permission-strip b { display: block; font: 700 22px "IBM Plex Mono", monospace; }.permission-strip span { color: rgba(255,255,255,.74); font-size: 18px; }.permission-strip i { color: var(--amber); font-size: 28px; font-style: normal; }.permission-question { position: absolute; z-index: 6; left: 420px; right: 420px; top: 320px; padding: 20px 25px; border: 3px solid var(--coral); border-radius: 12px; background: #fff; color: var(--ink); font-size: 25px; box-shadow: 0 18px 50px rgba(0,0,0,.25); }

.decision-bars { align-self: center; display: grid; gap: 28px; }.decision-bars article { display: grid; grid-template-columns: 280px 1fr 430px; align-items: center; gap: 22px; padding: 25px 28px; border: 2px solid var(--line); border-radius: 14px; background: #fff; }.decision-bars h3 { margin: 0; }.decision-bars p { margin: 0; color: var(--muted); font-size: 21px; }.split-bar { display: flex; height: 74px; overflow: hidden; border-radius: 10px; color: #fff; }.split-bar i { display: grid; place-items: center; width: calc(100% - var(--value)); font: 600 20px "IBM Plex Mono", monospace; font-style: normal; }.split-bar i.human { width: var(--value); background: var(--maroon); }.split-bar i.agent { flex: 1; background: var(--teal); }.scope-card { display: grid; grid-template-columns: 230px 1fr; gap: 24px; padding: 18px 24px; border-left: 9px solid var(--amber); background: rgba(242,170,0,.1); }.scope-card b { color: #8c5f00; font: 700 20px "IBM Plex Mono", monospace; }.scope-card span { font-size: 22px; }

.nested-fields { position: absolute; inset: 0; }.field { position: absolute; display: flex; align-items: flex-start; justify-content: center; border-radius: 50%; color: #fff; font: 700 18px "IBM Plex Mono", monospace; letter-spacing: .06em; }.field.ai { right: 110px; top: 110px; width: 700px; height: 700px; padding-top: 50px; background: rgba(76,0,19,.92); }.field.ml { left: 105px; top: 120px; width: 490px; height: 490px; padding-top: 45px; background: rgba(45,134,183,.94); }.field.dl { left: 95px; top: 115px; width: 290px; height: 290px; padding-top: 125px; background: rgba(15,127,128,.96); }.agent-dependency { position: absolute; right: 54px; bottom: 75px; width: 430px; padding: 18px; border-radius: 12px; background: #fff; box-shadow: 0 18px 50px rgba(0,0,0,.2); }.agent-dependency b { display: block; margin-bottom: 10px; color: var(--maroon); font: 700 24px "IBM Plex Sans Condensed", sans-serif; }.agent-dependency span { display: inline-block; margin: 3px; padding: 6px 9px; border-radius: 6px; background: var(--ivory); font: 600 16px "IBM Plex Mono", monospace; }

.tpe { align-self: center; display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }.tpe-card { min-height: 340px; padding: 28px; border-radius: 16px; color: #fff; }.tpe-card.t { background: var(--maroon); }.tpe-card.p { background: var(--blue); }.tpe-card.e { background: var(--teal); }.tpe-card > b { display: grid; place-items: center; width: 72px; height: 72px; margin-bottom: 28px; border: 3px solid rgba(255,255,255,.7); border-radius: 50%; font: 700 38px "IBM Plex Mono", monospace; }.tpe-card h3 { margin-bottom: 12px; font-size: 34px; }.tpe-card p { font-size: 24px; }.mitchell-quote { padding: 15px 24px; border: 2px solid var(--navy); border-radius: 10px; background: #fff; font-size: 23px; text-align: center; }

.classification { align-self: center; display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 40px; }.scatter { width: 100%; height: 450px; }.axis { fill: none; stroke: var(--navy); stroke-width: 4; }.decision-line { stroke: var(--coral); stroke-width: 5; stroke-dasharray: 12 8; }.scatter text { fill: var(--ink); font: 600 20px "IBM Plex Mono", monospace; }.scatter .threshold-label { fill: var(--coral); }.points.healthy { fill: var(--blue); }.points.damaged { fill: var(--coral); }.points circle { stroke: #fff; stroke-width: 3; }
.confusion { display: grid; grid-template-columns: 130px repeat(2, 130px); gap: 6px; align-items: center; text-align: center; }.confusion > b { font-size: 20px; }.confusion > span { display: grid; place-items: center; height: 105px; border-radius: 8px; color: #fff; font: 700 25px "IBM Plex Mono", monospace; }.tn, .tp { background: var(--teal); }.fp, .fn { background: var(--coral); }.confusion p { grid-column: 1 / 4; padding: 18px; border-left: 8px solid var(--coral); background: rgba(235,89,70,.09); font-size: 23px; text-align: left; }

.regression { align-self: center; display: grid; grid-template-columns: 340px 1fr; grid-template-rows: 1fr auto; align-items: center; gap: 20px 35px; }.reg-formula { display: grid; gap: 22px; padding: 28px; border-radius: 14px; background: var(--navy); color: #fff; }.reg-formula p { margin: 0; color: #b9d8e7; font-size: 22px; }.residual-plot { width: 100%; height: 440px; }.residual-plot text { fill: var(--ink); font: 600 18px "IBM Plex Mono", monospace; }.trend { fill: none; stroke: var(--coral); stroke-width: 7; opacity: .75; }.residual-points { fill: var(--blue); }.residual-points circle { stroke: #fff; stroke-width: 2; }.residual-flags { grid-column: 1 / 3; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }.residual-flags span { padding: 13px; border-radius: 7px; background: rgba(45,134,183,.1); font-size: 20px; font-weight: 600; text-align: center; }

.cluster-lesson { align-self: center; display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; }.cluster-lesson svg { width: 100%; height: 450px; }.cluster-lesson svg text { fill: var(--ink); font: 600 17px "IBM Plex Mono", monospace; }.cluster circle { stroke: #fff; stroke-width: 3; }.cluster.c1 { fill: var(--maroon); }.cluster.c2 { fill: var(--blue); }.cluster.c3 { fill: var(--teal); }.cluster-questions { padding: 25px 30px; border: 2px solid var(--line); border-radius: 16px; background: #fff; }.cluster-questions h3 { margin-bottom: 15px; }.cluster-questions ol { margin: 0 0 20px; padding-left: 30px; font-size: 24px; line-height: 1.45; }.standardize { padding: 15px; border-left: 8px solid var(--teal); background: rgba(15,127,128,.1); }.standardize b, .standardize span, .standardize small { display: block; }.standardize span { margin: 5px 0; font: 600 23px "IBM Plex Mono", monospace; }

.split-design { align-self: center; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }.partition { min-height: 360px; padding: 26px; border: 2px solid var(--line); border-radius: 16px; background: #fff; }.partition h3 { margin-bottom: 28px; }.partition p { margin: 28px 0 0; color: var(--muted); font-size: 22px; }.blocks { display: flex; gap: 5px; height: 90px; }.blocks i, .timeline i { flex: 1; display: grid; place-items: center; color: #fff; font: 600 16px "IBM Plex Mono", monospace; font-style: normal; }.blocks .train, .timeline .train { background: var(--blue); }.blocks .val, .timeline .val { background: var(--amber); color: var(--navy); }.blocks .test, .timeline .test { background: var(--coral); }.blocks i.wide { min-width: 105px; }.timeline { display: flex; height: 90px; }.split-contract { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }.split-contract span { padding: 15px; background: var(--navy); color: #fff; font-size: 19px; }.split-contract b { color: #9ee5dc; }

.leakage { align-self: center; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }.leakage article { min-height: 400px; padding: 28px; border-radius: 16px; background: #fff; }.wrong-pipeline { border: 3px solid var(--coral); }.right-pipeline { border: 3px solid var(--teal); }.wrong-pipeline h3 { color: var(--coral); }.right-pipeline h3 { color: var(--teal); }.pipeline { display: flex; align-items: center; gap: 8px; min-height: 120px; }.pipeline span { flex: 1; padding: 16px 10px; border-radius: 7px; background: var(--navy); color: #fff; font-size: 19px; text-align: center; }.pipeline span.danger { background: var(--coral); }.pipeline i { font-style: normal; font-size: 24px; }.leakage article > p { color: var(--muted); font-size: 22px; }.leak-arrow { margin-top: 20px; padding: 20px; background: rgba(235,89,70,.12); color: var(--coral); font: 700 24px "IBM Plex Mono", monospace; text-align: center; }.right-pipeline pre { font-size: 17px; }

.baseline-metric { align-self: center; display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; }.baseline-ladder, .metric-matrix { padding: 26px; border: 2px solid var(--line); border-radius: 16px; background: #fff; }.baseline-ladder > div { display: grid; grid-template-columns: 50px 1fr; gap: 4px 15px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); }.baseline-ladder b { grid-row: 1 / 3; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--maroon); color: #fff; }.baseline-ladder span { font-size: 23px; font-weight: 650; }.baseline-ladder small { color: var(--muted); }.formula-row { display: grid; grid-template-columns: 120px 1.2fr 1fr; gap: 15px; align-items: center; padding: 13px 0; border-top: 1px solid var(--line); }.formula-row span { color: var(--teal); font: 700 20px "IBM Plex Mono", monospace; }.formula-row b { font: 600 19px "IBM Plex Mono", monospace; }.formula-row small { color: var(--muted); }

.repro-stack { position: absolute; z-index: 4; left: 90px; right: 90px; bottom: 210px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; padding: 14px; border-radius: 13px; background: rgba(8,24,41,.92); }.repro-stack span { padding: 13px 8px; border: 1px solid rgba(255,255,255,.35); border-radius: 7px; color: #fff; font: 600 17px "IBM Plex Mono", monospace; text-align: center; }.repro-contract { position: absolute; z-index: 4; left: 160px; right: 160px; bottom: 92px; display: grid; grid-template-columns: 190px 1fr 1fr; gap: 18px; padding: 16px 22px; border-left: 10px solid var(--teal); background: rgba(255,255,255,.95); }.repro-contract b { color: var(--teal); font: 700 19px "IBM Plex Mono", monospace; }.repro-contract span { font-size: 19px; line-height: 1.25; }

.interpret-questions { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }.interpret-questions div { min-height: 145px; padding: 18px; border: 2px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.85); }.interpret-questions b, .interpret-questions span, .interpret-questions small { display: block; }.interpret-questions b { margin-bottom: 6px; color: var(--maroon); font: 700 20px "IBM Plex Mono", monospace; }.interpret-questions span { font-size: 21px; font-weight: 650; line-height: 1.15; }.interpret-questions small { margin-top: 8px; color: var(--muted); }

.causal-split { align-self: center; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }.causal-split article { min-height: 390px; padding: 28px; border: 2px solid var(--line); border-radius: 16px; background: #fff; }.causal-split h3 { padding-bottom: 14px; border-bottom: 6px solid var(--blue); }.causality-side h3 { border-bottom-color: var(--coral); }.causal-graph, .intervention { position: relative; display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 130px; }.causal-graph span, .intervention span { padding: 15px; border-radius: 8px; background: var(--navy); color: #fff; font-size: 20px; text-align: center; }.causal-graph i, .intervention i { color: var(--coral); font-size: 28px; font-style: normal; }.confound { position: absolute; top: 0; color: var(--maroon); font: 600 16px "IBM Plex Mono", monospace; }.causal-split .equation { min-height: 65px; padding: 14px; background: var(--ivory); font-size: 21px; text-align: center; }.causal-split p { margin: 17px 0 0; color: var(--muted); font-size: 21px; }.boundary-line { display: grid; grid-template-columns: 1fr 70px 1fr; align-items: center; gap: 12px; text-align: center; }.boundary-line span { padding: 11px; border-radius: 7px; background: rgba(45,134,183,.1); font-size: 20px; }.boundary-line span:last-child { background: rgba(235,89,70,.1); }.boundary-line b { color: var(--coral); font-size: 35px; }

.audit-board { position: absolute; z-index: 4; left: 70px; right: 70px; top: 210px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }.audit-checks, .exit-ticket { padding: 24px; border-radius: 14px; background: rgba(8,24,41,.93); color: #fff; }.audit-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }.audit-checks span { padding: 13px; border: 1px solid rgba(255,255,255,.28); border-radius: 7px; font: 600 19px "IBM Plex Mono", monospace; }.exit-ticket { background: rgba(255,255,255,.96); color: var(--ink); }.exit-ticket h3 { margin-bottom: 10px; color: var(--maroon); }.exit-ticket ol { margin: 0; padding-left: 26px; font-size: 21px; line-height: 1.45; }.exit-ticket .answer { margin-top: 12px; padding: 10px; border-left: 7px solid var(--teal); background: rgba(15,127,128,.12); font-size: 17px; }.next-hour { position: absolute; z-index: 5; left: 210px; right: 210px; bottom: 88px; padding: 14px 20px; border-radius: 10px; background: var(--maroon); color: #fff; font-size: 22px; text-align: center; }

.progress { position: fixed; z-index: 100; left: 0; right: 0; top: 0; height: 5px; background: rgba(255,255,255,.1); }.progress i { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--coral), var(--amber), var(--teal)); transition: width .25s ease; }
.controls { position: fixed; z-index: 120; right: 18px; bottom: 18px; display: flex; gap: 6px; padding: 6px; border: 1px solid rgba(255,255,255,.18); border-radius: 10px; background: rgba(8,20,36,.7); backdrop-filter: blur(12px); opacity: .28; transition: opacity .2s; }.controls:hover, .controls:focus-within { opacity: 1; }.controls button, .notes-head button { width: 38px; height: 34px; border: 0; border-radius: 6px; background: rgba(255,255,255,.12); color: #fff; cursor: pointer; font: 600 16px "IBM Plex Mono", monospace; }.controls button:hover { background: var(--maroon-2); }
.help { position: fixed; z-index: 110; left: 16px; bottom: 14px; color: rgba(255,255,255,.48); font: 500 12px "IBM Plex Mono", monospace; }
.notes-panel { position: fixed; z-index: 140; top: 0; right: 0; bottom: 0; width: min(520px, 92vw); padding: 24px; transform: translateX(105%); transition: transform .3s ease; background: #0c1a2d; color: #fff; box-shadow: -20px 0 60px rgba(0,0,0,.4); }.notes-panel.open { transform: translateX(0); }.notes-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.2); font: 600 19px "IBM Plex Mono", monospace; }.notes-head button { font-size: 24px; }.notes-panel #notesContent { padding-top: 22px; font-size: 22px; line-height: 1.55; }
.overview-panel { position: fixed; z-index: 130; inset: 0; padding: 34px; opacity: 0; visibility: hidden; transition: opacity .25s; background: rgba(5,14,27,.96); color: #fff; overflow: auto; }.overview-panel.open { opacity: 1; visibility: visible; }.overview-head { display: flex; justify-content: space-between; margin-bottom: 24px; font: 600 18px "IBM Plex Mono", monospace; }.overview-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }.overview-card { min-height: 150px; padding: 18px; border: 1px solid rgba(255,255,255,.18); border-top: 6px solid var(--teal); border-radius: 10px; background: rgba(255,255,255,.06); color: #fff; cursor: pointer; text-align: left; }.overview-card:hover, .overview-card.current { border-color: var(--amber); background: rgba(255,255,255,.12); }.overview-card b { display: block; margin-bottom: 15px; color: var(--amber); font: 700 17px "IBM Plex Mono", monospace; }.overview-card span { font: 600 22px/1.15 "IBM Plex Sans Condensed", sans-serif; }
body.presenter .controls, body.presenter .help { opacity: 0; pointer-events: none; }

/* P16 overflow correction */
.loop-node text.small { font: 500 13px "IBM Plex Mono", monospace; letter-spacing: -.02em; }

/* Deep-tech image-first description slides */
.deep-tech-slide {
  isolation: isolate;
  background: #f5efe3;
}

.deep-tech-slide .deep-tech-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(.94) contrast(1.02);
}

.deep-tech-slide .deep-tech-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg,
    rgba(248, 243, 233, .99) 0%,
    rgba(248, 243, 233, .98) 39%,
    rgba(248, 243, 233, .86) 45%,
    rgba(248, 243, 233, .12) 55%,
    rgba(248, 243, 233, 0) 68%);
  pointer-events: none;
}

.deep-tech-slide.deep-left .deep-tech-scrim {
  background: linear-gradient(270deg,
    rgba(248, 243, 233, .99) 0%,
    rgba(248, 243, 233, .98) 39%,
    rgba(248, 243, 233, .86) 45%,
    rgba(248, 243, 233, .12) 55%,
    rgba(248, 243, 233, 0) 68%);
}

.deep-tech-slide > :not(.deep-tech-bg):not(.deep-tech-scrim):not(.deep-tech-caption):not(header):not(footer):not(.source):not(.source-note):not(.brand-row):not(.brand-lockup):not(.institution-logos):not(.logo-row):not(.logos):not(.slide-number):not(.time-cue) {
  display: none !important;
}

.deep-tech-slide header,
.deep-tech-slide footer,
.deep-tech-slide .source,
.deep-tech-slide .source-note,
.deep-tech-slide .brand-row,
.deep-tech-slide .brand-lockup,
.deep-tech-slide .institution-logos,
.deep-tech-slide .logo-row,
.deep-tech-slide .logos,
.deep-tech-slide .slide-number,
.deep-tech-slide .time-cue {
  position: relative;
  z-index: 4;
}

.deep-tech-slide header {
  width: 43%;
  max-width: 43%;
}

.deep-tech-slide.deep-left header {
  width: 40%;
  max-width: 40%;
  margin-left: auto;
}

.deep-tech-slide header h2 {
  max-width: 100%;
  font-size: clamp(38px, 3.05vw, 54px);
  line-height: 1.02;
  text-wrap: balance;
}

.deep-tech-slide header p:not(.eyebrow) {
  max-width: 94%;
  font-size: 18px;
  line-height: 1.34;
}

.deep-tech-caption {
  position: absolute;
  z-index: 5;
  left: 4.35%;
  top: 34%;
  width: 37.5%;
  display: grid;
  gap: 12px;
}

.deep-tech-slide.deep-left .deep-tech-caption {
  left: auto;
  right: 4.35%;
  width: 36.5%;
}

.deep-tech-caption p {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 13px;
  align-items: start;
  margin: 0;
  padding: 14px 16px;
  border: 1px solid rgba(62, 75, 86, .17);
  border-left: 5px solid #7f2635;
  border-radius: 7px;
  background: rgba(255, 253, 248, .90);
  box-shadow: 0 9px 24px rgba(34, 43, 52, .08);
  backdrop-filter: blur(7px);
}

.deep-tech-caption b {
  color: #7f2635;
  font-family: "IBM Plex Mono", monospace;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: .01em;
}

.deep-tech-caption span {
  color: #243441;
  font-size: 18px;
  font-weight: 560;
  line-height: 1.28;
}

.deep-tech-slide .source,
.deep-tech-slide .source-note {
  position: absolute;
  z-index: 5;
  left: 4.35%;
  right: auto;
  bottom: 5.2%;
  width: 38%;
  max-width: 38%;
  font-size: 12px;
}

.deep-tech-slide.deep-left .source,
.deep-tech-slide.deep-left .source-note {
  left: auto;
  right: 4.35%;
  width: 36.5%;
  max-width: 36.5%;
}

@media (max-width: 900px) {
  .deep-tech-slide header,
  .deep-tech-slide.deep-left header {
    width: 48%;
    max-width: 48%;
  }

  .deep-tech-slide.deep-left header {
    margin-left: auto;
  }

  .deep-tech-caption {
    top: 36%;
    width: 41%;
  }

  .deep-tech-slide.deep-left .deep-tech-caption {
    width: 40%;
  }

  .deep-tech-caption p {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 10px 12px;
  }

  .deep-tech-caption span {
    font-size: 15px;
  }
}

/* AI history, generative AI, RL, and engineering examples */
.history-slide { color: var(--ink); }
.history-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(251,248,241,.96) 0%, rgba(251,248,241,.7) 26%, transparent 52%, rgba(251,248,241,.25) 100%); }
.history-hero-copy { position: absolute; z-index: 4; left: 72px; top: 48px; width: 790px; }
.history-hero-copy h2 { font-size: 64px; }.history-hero-copy p:not(.eyebrow) { margin-top: 12px; font-size: 24px; }
.history-era-ribbon { position: absolute; z-index: 5; left: 70px; right: 70px; bottom: 105px; display: grid; grid-template-columns: repeat(7, auto); align-items: center; gap: 10px; padding: 15px; border-radius: 14px; background: rgba(8,24,41,.93); color: #fff; }
.history-era-ribbon div { min-width: 275px; padding: 11px 13px; border: 1px solid rgba(255,255,255,.25); border-radius: 8px; }
.history-era-ribbon b, .history-era-ribbon span, .history-era-ribbon small { display: block; }
.history-era-ribbon b { color: #8fe0d7; font: 700 17px "IBM Plex Mono", monospace; }.history-era-ribbon span { margin: 3px 0; font-size: 19px; font-weight: 650; }.history-era-ribbon small { color: rgba(255,255,255,.7); font-size: 14px; }
.history-era-ribbon i { color: var(--amber); font-size: 25px; font-style: normal; }
.history-source { position: absolute; z-index: 5; left: 75px; top: 195px; width: 680px; color: var(--muted); font-size: 15px; }

.tradition-compare { align-self: center; display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.tradition-compare article { position: relative; min-height: 330px; padding: 25px 28px 22px 115px; border: 2px solid var(--line); border-radius: 15px; background: #fff; }
.symbolic-tradition { border-top: 9px solid var(--maroon) !important; }.learning-tradition { border-top: 9px solid var(--teal) !important; }
.tradition-mark { position: absolute; left: 25px; top: 27px; display: grid; place-items: center; width: 68px; height: 68px; border-radius: 50%; background: var(--maroon); color: #fff; font: 700 27px "IBM Plex Mono", monospace; }
.learning-tradition .tradition-mark { background: var(--teal); }
.tradition-compare h3 { margin-bottom: 18px; }.tradition-compare p { margin: 9px 0; font-size: 20px; }
.mini-flow { display: flex; align-items: center; gap: 7px; margin-bottom: 18px; }.mini-flow span { flex: 1; padding: 10px; border-radius: 7px; background: var(--ivory); text-align: center; font: 600 16px "IBM Plex Mono", monospace; }.mini-flow i { color: var(--coral); font-style: normal; font-size: 22px; }
.history-pulse { display: grid; grid-template-columns: repeat(7, auto); align-items: center; gap: 8px; padding: 12px 15px; border-radius: 10px; background: var(--navy); color: #fff; }.history-pulse span { font-size: 16px; }.history-pulse b { display: block; color: var(--amber); font: 700 15px "IBM Plex Mono", monospace; }.history-pulse i { color: var(--teal); font-style: normal; font-size: 22px; }

.deep-forces { align-self: center; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 17px; }
.deep-forces article { min-height: 180px; padding: 23px; border-radius: 14px; background: var(--navy); color: #fff; }
.deep-forces article:nth-of-type(2) { background: var(--maroon); }.deep-forces article:nth-of-type(3) { background: var(--teal); }
.deep-forces b, .deep-forces span, .deep-forces small { display: block; }.deep-forces b { color: var(--amber); font: 700 19px "IBM Plex Mono", monospace; }.deep-forces span { margin: 15px 0 8px; font: 650 25px "IBM Plex Sans Condensed", sans-serif; }.deep-forces small { color: rgba(255,255,255,.72); }
.force-plus { color: var(--coral); font-size: 40px; font-weight: 700; }
.milestone-rail { display: grid; grid-template-columns: repeat(9, auto); align-items: center; gap: 8px; padding: 14px; border: 2px solid var(--navy); border-radius: 12px; background: #fff; }
.milestone-rail div { min-width: 205px; }.milestone-rail b, .milestone-rail span, .milestone-rail small { display: block; }.milestone-rail b { color: var(--maroon); font: 700 18px "IBM Plex Mono", monospace; }.milestone-rail span { font-size: 22px; font-weight: 700; }.milestone-rail small { color: var(--muted); font-size: 15px; }.milestone-rail i { color: var(--teal); font-size: 24px; font-style: normal; }

.rl-layout { align-self: center; display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; }
.rl-loop { position: relative; min-height: 365px; display: grid; grid-template-columns: repeat(7, auto); align-items: start; gap: 8px; padding: 55px 18px 105px; border: 2px solid var(--line); border-radius: 15px; background: #fff; }
.rl-node { display: grid; place-items: center; min-width: 125px; min-height: 90px; padding: 10px; border-radius: 9px; background: var(--navy); color: #fff; font: 650 19px "IBM Plex Sans Condensed", sans-serif; text-align: center; }
.rl-node.policy { background: var(--teal); }.rl-node.action { background: var(--coral); }.rl-node.environment { background: var(--maroon); }
.rl-loop > i { align-self: center; color: var(--amber); font-size: 27px; font-style: normal; }
.rl-return { position: absolute; left: 75px; right: 75px; bottom: 63px; display: flex; justify-content: center; gap: 14px; padding: 10px; border: 2px dashed var(--teal); border-radius: 8px; font: 600 16px "IBM Plex Mono", monospace; }.rl-return b { color: var(--coral); font-size: 23px; }
.rl-objective { position: absolute; left: 125px; right: 125px; bottom: 13px; padding: 9px; border-radius: 7px; background: var(--ivory); text-align: center; font: 600 19px "IBM Plex Mono", monospace; }
.game-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.game-compare article { min-height: 365px; padding: 24px; border: 2px solid var(--line); border-top: 9px solid var(--blue); border-radius: 15px; background: #fff; }.game-compare article:last-child { border-top-color: var(--teal); }
.game-year { display: inline-block; padding: 5px 10px; border-radius: 999px; background: var(--navy); color: #fff; font: 700 16px "IBM Plex Mono", monospace; }.game-compare h3 { margin: 18px 0 12px; font-size: 34px; }.game-compare p { min-height: 105px; font-size: 20px; }.game-compare small { display: block; padding-top: 15px; border-top: 1px solid var(--line); color: var(--maroon); font-weight: 650; }
.rl-milestones { display: grid; grid-template-columns: repeat(9, auto); align-items: center; gap: 7px; padding: 10px 14px; border-radius: 9px; background: var(--navy); color: #fff; }.rl-milestones span { font-size: 15px; }.rl-milestones b { display: block; color: var(--amber); font: 700 14px "IBM Plex Mono", monospace; }.rl-milestones i { color: var(--teal); font-style: normal; font-size: 21px; }

.discriminative-generative { align-self: center; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.discriminative-generative article { min-height: 240px; padding: 20px 22px; border: 2px solid var(--line); border-top: 9px solid var(--blue); border-radius: 14px; background: #fff; }
.discriminative-generative article:last-child { border-top-color: var(--coral); }.discriminative-generative h3 { margin-bottom: 8px; }.discriminative-generative p { margin: 8px 0 0; font-size: 18px; }
.dg-sketch { position: relative; display: flex; align-items: center; justify-content: center; gap: 15px; height: 72px; margin-top: 8px; background: var(--ivory); }
.sample-cloud { width: 95px; height: 60px; background: radial-gradient(circle at 20% 25%, var(--blue) 0 5px, transparent 6px), radial-gradient(circle at 45% 65%, var(--blue) 0 5px, transparent 6px), radial-gradient(circle at 70% 35%, var(--coral) 0 5px, transparent 6px), radial-gradient(circle at 82% 70%, var(--coral) 0 5px, transparent 6px); }
.boundary-line-sketch { width: 5px; height: 62px; background: var(--maroon); transform: rotate(18deg); }.dg-sketch b { font-size: 17px; }
.generated-sketch span, .generated-sketch b { padding: 10px 14px; border-radius: 7px; background: var(--navy); color: #fff; }.generated-sketch i { color: var(--coral); font-size: 28px; font-style: normal; }
.gen-milestones { display: grid; grid-template-columns: repeat(9, auto); align-items: center; gap: 7px; padding: 9px 14px; border-radius: 9px; background: var(--navy); color: #fff; }.gen-milestones span { font-size: 15px; }.gen-milestones b { display: block; color: var(--amber); font: 700 13px "IBM Plex Mono", monospace; }.gen-milestones i { color: var(--teal); font-style: normal; font-size: 20px; }
.llm-definition { display: grid; grid-template-columns: 90px 1fr; align-items: center; gap: 14px; padding: 9px 14px; border-left: 8px solid var(--coral); background: rgba(235,89,70,.08); }.llm-definition b { color: var(--coral); font: 700 25px "IBM Plex Mono", monospace; }.llm-definition span { font-size: 16px; line-height: 1.2; }
.foundation-recipe { display: flex; align-items: center; justify-content: center; gap: 9px; padding: 9px; border-left: 8px solid var(--teal); background: rgba(15,127,128,.09); font-size: 15px; }.foundation-recipe b { color: var(--teal); font-family: "IBM Plex Mono", monospace; }.foundation-recipe span { padding: 5px 8px; background: #fff; }.foundation-recipe i { color: var(--coral); font-style: normal; }

.gen-mechanism-slide { color: var(--ink); }.gen-mechanism-slide .full-bleed { filter: saturate(.83) brightness(.92); }
.gen-top-copy { position: absolute; z-index: 5; left: 70px; top: 40px; width: 900px; }.gen-top-copy h2 { font-size: 55px; }
.gen-equation-card { position: absolute; z-index: 5; bottom: 145px; width: 500px; padding: 16px 19px; border-radius: 12px; background: rgba(255,255,255,.94); box-shadow: 0 16px 45px rgba(0,0,0,.18); }
.language-card { left: 55px; border-top: 8px solid var(--teal); }.diffusion-card { right: 55px; border-top: 8px solid var(--coral); }
.gen-equation-card > b { color: var(--maroon); font: 700 16px "IBM Plex Mono", monospace; }.gen-equation-card .equation { margin: 8px 0; font-size: 19px; }.gen-equation-card ol { display: grid; grid-template-columns: 1fr 1fr; gap: 3px 22px; margin: 0; padding-left: 22px; font-size: 16px; }
.shared-principle { position: absolute; z-index: 5; left: 300px; right: 300px; bottom: 82px; padding: 11px 16px; border-radius: 9px; background: var(--navy); color: #fff; font-size: 17px; text-align: center; }.shared-principle b { color: #8fe0d7; }

.ml-example-grid { align-self: center; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ml-example-grid article { min-height: 390px; padding: 22px; border: 2px solid var(--line); border-top: 9px solid var(--blue); border-radius: 14px; background: #fff; }
.ml-example-grid article:nth-child(2) { border-top-color: var(--teal); }.ml-example-grid article:nth-child(3) { border-top-color: var(--amber); }.ml-example-grid article:nth-child(4) { border-top-color: var(--coral); }
.example-type { display: inline-block; margin-bottom: 18px; color: var(--maroon); font: 700 14px "IBM Plex Mono", monospace; }.ml-example-grid h3 { min-height: 74px; margin-bottom: 13px; font-size: 27px; }.ml-example-grid p { margin: 7px 0; font-size: 19px; }.ml-example-grid small { display: block; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--teal); font-weight: 650; }
.problem-template { display: flex; justify-content: center; align-items: center; gap: 9px; padding: 11px; border-radius: 9px; background: var(--navy); color: #fff; font-size: 16px; }.problem-template b { color: var(--amber); font-family: "IBM Plex Mono", monospace; }.problem-template span { padding: 5px 8px; border: 1px solid rgba(255,255,255,.28); border-radius: 5px; }.problem-template i { color: var(--teal); font-style: normal; }

.engineering-ml-grid { align-self: center; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.engineering-ml-grid article { min-height: 235px; padding: 18px 21px; border: 2px solid var(--line); border-radius: 12px; background: #fff; }
.engineering-ml-grid h3 { margin: 10px 0 5px; font-size: 26px; }.engineering-ml-grid p { margin: 0; font-size: 18px; }.engineering-ml-grid small { display: block; margin-top: 7px; color: var(--maroon); font-size: 15px; font-weight: 600; line-height: 1.2; }
.example-diagram { display: flex; align-items: center; gap: 7px; }.example-diagram span, .example-diagram b { flex: 1; padding: 8px; border-radius: 6px; background: var(--ivory); text-align: center; font-size: 14px; }.example-diagram b { background: var(--teal); color: #fff; }.example-diagram i { color: var(--coral); font-size: 20px; font-style: normal; }

.agent-history-slide { color: var(--ink); }.agent-history-slide .full-bleed { filter: saturate(.78) brightness(.93); }
.agent-history-title { position: absolute; z-index: 5; left: 70px; top: 42px; width: 820px; }.agent-history-title h2 { font-size: 56px; }
.agent-stage-strip { position: absolute; z-index: 5; left: 55px; right: 55px; bottom: 180px; display: grid; grid-template-columns: repeat(9, auto); align-items: center; gap: 7px; padding: 13px; border-radius: 13px; background: rgba(8,24,41,.93); color: #fff; }
.agent-stage-strip div { min-width: 220px; padding: 10px 12px; border: 1px solid rgba(255,255,255,.28); border-radius: 7px; }.agent-stage-strip div.governed { border: 2px solid var(--amber); }
.agent-stage-strip b, .agent-stage-strip span { display: block; }.agent-stage-strip b { color: #8fe0d7; font: 700 14px "IBM Plex Mono", monospace; }.agent-stage-strip span { margin-top: 4px; font-size: 15px; }.agent-stage-strip i { color: var(--amber); font-style: normal; font-size: 22px; }
.agent-history-claim { position: absolute; z-index: 5; left: 180px; right: 180px; bottom: 100px; padding: 12px 16px; border-left: 9px solid var(--coral); background: rgba(255,255,255,.94); font-size: 18px; text-align: center; }
.agent-history-source { position: absolute; z-index: 5; left: 75px; bottom: 73px; color: var(--muted); font-size: 13px; }

/* Interactive classification threshold demo */
.threshold-demo { align-self: center; display: grid; grid-template-columns: .95fr 1.05fr; gap: 18px 24px; }
.threshold-panel, .interactive-confusion { padding: 20px 22px; border: 2px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.9); }
.threshold-control label { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font: 650 23px "IBM Plex Sans Condensed", sans-serif; }
.threshold-control output { padding: 5px 12px; border-radius: 7px; background: var(--maroon); color: #fff; font: 700 21px "IBM Plex Mono", monospace; }
.threshold-control input { width: 100%; accent-color: var(--maroon); cursor: ew-resize; }
.threshold-extremes { display: flex; justify-content: space-between; color: var(--muted); font: 500 14px "IBM Plex Mono", monospace; }
.score-legend { display: flex; gap: 18px; margin-top: 10px; font-size: 15px; }
.score-legend span { display: flex; align-items: center; gap: 7px; }
.score-legend i { width: 14px; height: 14px; border-radius: 50%; }
.score-legend .actual-positive { background: var(--coral); }.score-legend .actual-negative { background: var(--blue); }
.score-legend .predicted-ring { border: 4px solid var(--amber); background: transparent; }
.score-ruler { position: relative; height: 185px; margin-top: 8px; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: linear-gradient(90deg, rgba(45,134,183,.08), rgba(45,134,183,.08) 50%, rgba(235,89,70,.08) 50%, rgba(235,89,70,.08)); }
.prediction-zone { position: absolute; top: 6px; font: 600 13px "IBM Plex Mono", monospace; color: var(--muted); text-transform: uppercase; }
.negative-zone { left: 10px; }.positive-zone { right: 10px; }
.threshold-marker { position: absolute; z-index: 3; top: 0; bottom: 28px; width: 3px; background: var(--maroon); transform: translateX(-50%); transition: left .16s ease; }
.threshold-marker b { position: absolute; top: 26px; left: 7px; color: var(--maroon); font: 700 19px "IBM Plex Mono", monospace; }
.case-dot { position: absolute; z-index: 4; width: 19px; height: 19px; padding: 0; transform: translate(-50%, -50%); border: 2px solid #fff; border-radius: 50%; cursor: help; transition: left .15s, opacity .15s, box-shadow .15s; }
.case-dot.actual-damage { top: 78px; background: var(--coral); }.case-dot.actual-healthy { top: 122px; background: var(--blue); }
.case-dot.predicted-damage { box-shadow: 0 0 0 4px var(--amber); }.case-dot.predicted-healthy { opacity: .58; }
.score-axis { position: absolute; left: 8px; right: 8px; bottom: 6px; display: flex; justify-content: space-between; color: var(--muted); font: 500 12px "IBM Plex Mono", monospace; }
.matrix-grid { display: grid; grid-template-columns: 125px 1fr 1fr; gap: 6px; align-items: stretch; text-align: center; }
.matrix-grid > b { display: grid; place-items: center; font-size: 16px; line-height: 1.05; }
.matrix-cell { min-height: 105px; padding: 9px; border: 0; border-radius: 8px; color: #fff; cursor: pointer; transition: transform .15s, box-shadow .15s; }
.matrix-cell:hover, .matrix-cell.active { transform: translateY(-2px); box-shadow: 0 0 0 4px var(--amber); }
.matrix-cell small, .matrix-cell strong, .matrix-cell span { display: block; }
.matrix-cell small { font: 600 12px "IBM Plex Mono", monospace; }.matrix-cell strong { margin: 3px 0; font: 700 35px "IBM Plex Sans Condensed", sans-serif; }.matrix-cell span { font-size: 15px; }
.matrix-explain { min-height: 64px; margin-top: 8px; padding: 9px 12px; border-left: 7px solid var(--amber); background: var(--ivory); font-size: 15px; line-height: 1.25; }
.matrix-explain b, .matrix-explain span { display: block; }
.matrix-explain b { color: var(--maroon); margin-bottom: 3px; }
.live-metrics { grid-column: 1 / 3; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.live-metrics article { min-height: 100px; padding: 11px 13px; border: 1px solid var(--line); border-top: 6px solid var(--teal); border-radius: 8px; background: #fff; }
.live-metrics small, .live-metrics strong, .live-metrics span { display: block; }
.live-metrics small { min-height: 30px; color: var(--maroon); font: 600 13px/1.1 "IBM Plex Mono", monospace; }
.live-metrics strong { font: 700 29px "IBM Plex Sans Condensed", sans-serif; }
.live-metrics span { color: var(--muted); font: 500 13px "IBM Plex Mono", monospace; }

/* Interactive metric scenarios */
.metric-lab { align-self: center; display: grid; grid-template-columns: 430px 1fr; gap: 20px; }
.scenario-panel { padding: 18px; border: 2px solid var(--line); border-radius: 14px; background: #fff; }
.preset-buttons { display: grid; grid-template-columns: 1fr; gap: 7px; margin-bottom: 12px; }
.preset-buttons button { padding: 9px 12px; border: 1px solid var(--line); border-left: 7px solid var(--blue); border-radius: 7px; background: var(--paper); color: var(--ink); cursor: pointer; text-align: left; font-weight: 650; }
.preset-buttons button:hover, .preset-buttons button.active { border-left-color: var(--coral); background: rgba(235,89,70,.1); }
.mini-matrix { display: grid; grid-template-columns: 95px 1fr 1fr; gap: 5px; text-align: center; }
.mini-matrix > b { display: grid; place-items: center; font-size: 15px; }
.mini-matrix > span { display: flex; justify-content: space-between; align-items: center; padding: 9px; border-radius: 6px; color: #fff; font: 600 14px "IBM Plex Mono", monospace; }
.mini-matrix strong { font-size: 24px; }
.scenario-narrative { min-height: 60px; margin-top: 10px; padding: 10px; border-left: 7px solid var(--coral); background: rgba(235,89,70,.08); font-size: 17px; font-weight: 600; line-height: 1.22; }
.baseline-reminder { margin-top: 8px; color: var(--muted); font-size: 14px; }.baseline-reminder b { color: var(--teal); }
.metric-glossary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.metric-glossary article { min-height: 150px; padding: 12px; border: 1px solid var(--line); border-top: 6px solid var(--teal); border-radius: 8px; background: #fff; }
.metric-glossary article:nth-child(2), .metric-glossary article:nth-child(6) { border-top-color: var(--blue); }
.metric-glossary article:nth-child(7), .metric-glossary article:nth-child(8) { border-top-color: var(--coral); }
.metric-glossary small, .metric-glossary strong, .metric-glossary span, .metric-glossary code { display: block; }
.metric-glossary small { min-height: 31px; color: var(--maroon); font: 600 12px/1.1 "IBM Plex Mono", monospace; }
.metric-glossary strong { margin: 2px 0; font: 700 26px "IBM Plex Sans Condensed", sans-serif; }
.metric-glossary span { min-height: 42px; font-size: 14px; line-height: 1.18; }
.metric-glossary code { margin-top: 5px; color: var(--teal); font: 600 12px "IBM Plex Mono", monospace; }
.metric-rule { display: flex; justify-content: center; gap: 12px; padding: 9px 16px; border-radius: 8px; background: var(--navy); color: #fff; font-size: 18px; }
.metric-rule b { color: #8fe0d7; }

@media (max-width: 760px) {
  .help { display: none; }
  .controls { right: 8px; bottom: 8px; opacity: .75; transform: scale(.9); transform-origin: right bottom; }
}
@media print {
  @page { size: 16in 9in; margin: 0; }
  body { overflow: visible; background: #fff; }
  .deck-shell { position: static; display: block; }
  .deck { width: 1600px; height: auto; overflow: visible; transform: none !important; box-shadow: none; }
  .slide { position: relative; display: grid; width: 1600px; height: 900px; opacity: 1; visibility: visible; transform: none; break-after: page; }
  .controls, .progress, .help, .notes-panel, .overview-panel { display: none !important; }
}