/* ============================================================
   DataHack Summit 2026 — deck design system
   Ported 1:1 from HackSession_Summit_2026_Content.pptx
   Slide canvas: 13.333in x 7.5in  ->  1280 x 720 px @ 96dpi
   ============================================================ */

:root {
  /* --- brand palette (extracted from pptx) --- */
  --navy-900:  #0C1830;   /* deepest panel */
  --navy-800:  #0F2247;   /* headings on light */
  --navy-700:  #16264A;
  --navy-600:  #1A1330;   /* chip fill */
  --ink-600:   #3A4866;   /* body on light */
  --slate-500: #7E8AA3;
  --slate-400: #8A93A8;
  --slate-300: #9AA4C0;
  --slate-200: #AEB6CF;

  --panel-tint: #F3F6FC;  /* light card fill */
  --panel-line: #B9C7DF;  /* light card border */
  --line-soft:  #D6E1F5;

  --orange:  #FE7202;     /* primary accent */
  --orange-2:#E8632A;     /* title-chip border */
  --blue:    #2D7FF9;     /* section number */
  --blue-2:  #3886F0;
  --teal:    #1FB6A6;     /* speaker / AI accent */
  --pink:    #FF7EB6;
  --cyan:    #5CD0FF;
  --green:   #9DECA0;

  /* --- type --- */
  --font-head: "Arial", "Helvetica Neue", Helvetica, sans-serif;
  --font-body: "Calibri", "Segoe UI", system-ui, sans-serif;
  --font-mono: "Consolas", "SF Mono", "Menlo", monospace;
}

/* ---------- reveal frame ---------- */
.reveal { font-family: var(--font-body); }
.reveal .slides { text-align: left; }
.reveal .slides section {
  padding: 0;
  height: 720px;
  width: 1280px;
  overflow: hidden;
}

/* The stage is the 1280x720 canvas. Everything positions absolutely
   inside it, exactly like shapes on a PowerPoint slide. */
.stage {
  position: absolute;
  inset: 0;
  width: 1280px;
  height: 720px;
  overflow: hidden;
}

/* absolute element helper: use inline style for left/top/width/height in px */
.abs { position: absolute; }

/* ============================================================
   BACKGROUNDS
   ============================================================ */
.bg-dark  { background: #0a1430 url("../assets/bg-dark.jpg")  center/cover no-repeat; }
.bg-dark2 { background: #0a1430 url("../assets/bg-dark-alt.jpg") center/cover no-repeat; }
.bg-light { background: #ffffff; }

/* ============================================================
   SHARED PARTIALS
   ============================================================ */

/* top-left logo (title slide) */
.logo-tl { left: 53px; top: 28px; width: 336px; }
.logo-tl img { width: 100%; display: block; }

/* glowing orb graphic */
.orb img { width: 100%; display: block; }

/* bottom-left date line */
.footer-date {
  left: 53px; top: 672px; width: 780px;
  font-family: var(--font-body);
  font-size: 14.7px; color: var(--slate-300);
}

/* bottom-right Human × AI lockup */
.footer-hxai {
  top: 672px; width: 362px; right: 42px; left: auto;
  text-align: right;
  font-family: var(--font-head);
  font-size: 17.3px; font-weight: 700;
}
.footer-hxai .human { color: var(--blue); }
.footer-hxai .x     { color: var(--slate-300); font-weight: 400; }
.footer-hxai .ai    { color: var(--teal); }

/* centered brand footer (content slides) */
.footer-brand {
  left: 0; top: 694px; width: 1280px;
  text-align: center;
  font-family: var(--font-head);
  font-size: 10.7px; color: var(--slate-400);
  letter-spacing: 2.3px;
}

/* ============================================================
   TEMPLATE 1 — TITLE  (slide 1)
   ============================================================ */
.t-chip {
  left: 53px; top: 197px; width: 206px; height: 44px;
  background: var(--navy-600);
  border: 1.6px solid var(--orange-2);
  border-radius: 22px;          /* pptx roundRect adj=50000 → 50% of height */
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-size: 15.3px; font-weight: 700; color: var(--orange-2);
  letter-spacing: 2.7px;
}
.t-title {
  left: 53px; top: 274px; width: 823px;
  font-family: var(--font-head);
  font-size: 42.7px; font-weight: 700; color: #fff;
  letter-spacing: 1.3px; line-height: 1.28;
}
.t-subtitle {
  left: 54px; top: 437px; width: 700px;
  font-family: var(--font-body);
  font-size: 21.3px; color: var(--teal);
}
.t-speaker-label {
  left: 54px; top: 499px; width: 400px;
  font-family: var(--font-head);
  font-size: 16px; font-weight: 700; color: var(--teal);
  letter-spacing: 4px;
}
.t-rule {
  left: 54px; top: 530px; width: 134px; height: 4px;
  background: var(--teal);
}
.t-speaker-name {
  left: 53px; top: 543px; width: 720px;
  font-family: var(--font-head);
  font-size: 30.7px; font-weight: 700; color: #fff;
}
.t-orb { left: 716px; top: 85px; width: 537px; }

/* ============================================================
   TEMPLATE 2 — SECTION DIVIDER  (slide 3)
   ============================================================ */
.s-number {
  left: 53px; top: 149px; width: 400px;
  font-family: var(--font-head);
  font-size: 138.7px; font-weight: 700; color: var(--blue);
  line-height: 1;
}
.s-label {
  left: 56px; top: 322px; width: 500px;
  font-family: var(--font-head);
  font-size: 17.3px; font-weight: 700; color: var(--teal);
  letter-spacing: 5.3px;
}
.s-title {
  left: 53px; top: 360px; width: 820px;
  font-family: var(--font-head);
  font-size: 56px; font-weight: 700; color: #fff;
  line-height: 1.1;
}
.s-desc {
  left: 54px; top: 480px; width: 720px;
  font-family: var(--font-body);
  font-size: 21.3px; color: var(--slate-200);
}
.s-orb { left: 704px; top: 50px; width: 576px; }

/* ============================================================
   TEMPLATE 3 — CONTENT PAGE  (slide 2 style, the "normal page")
   ============================================================ */
.c-accent {                    /* orange vertical tab beside title */
  left: 53px; top: 58px; width: 9px; height: 63px;
  background: var(--orange);
}
.c-title {                     /* vertically centered on the accent bar */
  left: 77px; top: 58px; width: 900px; height: 63px;
  display: flex; align-items: center;
  font-family: var(--font-head);
  font-size: 38.7px; font-weight: 700; color: var(--navy-800);
}

/* small AV × DataHack logo, top-right corner of content pages */
.c-logo {
  right: 53px; top: 66px; left: auto; width: 160px;
}
.c-logo img { width: 100%; display: block; }
.c-rule {                      /* orange horizontal divider */
  left: 53px; top: 139px; width: 1174px; height: 3px;
  background: var(--orange);
}
/* content body region: a free canvas between the title-rule and the footer.
   Flex column by default so content fills the full height instead of piling
   up at the top. Pick a distribution modifier per slide. */
.c-body {
  left: 53px; top: 164px; width: 1174px; height: 494px;
  display: flex; flex-direction: column; justify-content: center;
}
.c-body.spread  { justify-content: space-between; }   /* push blocks to fill top→bottom */
.c-body.around  { justify-content: space-around; }
.c-body.top     { justify-content: flex-start; }
.c-body.end     { justify-content: flex-end; }
/* a horizontal split that fills the whole height */
.c-body.split { flex-direction: row; align-items: stretch; gap: 40px; }
.c-body.split > * { display: flex; flex-direction: column; justify-content: center; }
/* make direct children that should grow actually grow */
.c-body .grow { flex: 1; }

/* small orb, top-right of content pages (same asset as slide 1) */
.c-orb { left: 1133px; top: 39px; width: 90px; }

/* ---- handy content building blocks (light theme) ---- */
.card {
  background: var(--panel-tint);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
}
.eyebrow {
  font-family: var(--font-head);
  font-size: 13px; font-weight: 700; letter-spacing: 3px;
  color: var(--teal); text-transform: uppercase;
}
.lead   { color: var(--navy-800); font-size: 20px; font-weight: 700; }
.body   { color: var(--ink-600);  font-size: 16px; line-height: 1.5; }
.muted  { color: var(--slate-500); font-size: 13.5px; }

/* code block on light pages */
.code {
  font-family: var(--font-mono);
  font-size: 14px; line-height: 1.5;
  background: var(--navy-900); color: #d6e1f5;
  border-radius: 10px; padding: 18px 20px;
  white-space: pre; overflow: hidden;
}
.code .kw  { color: var(--pink); }
.code .fn  { color: var(--cyan); }
.code .str { color: var(--green); }
.code .com { color: var(--slate-400); }
.code .num { color: var(--orange); }
.code .self{ color: var(--slate-300); font-style: italic; }
.code.sm  { font-size: 12.5px; line-height: 1.45; padding: 14px 16px; }
.code.xs  { font-size: 11px;   line-height: 1.4;  padding: 12px 14px; }
/* highlight a line inside a code block */
.code .hl { display:block; background: rgba(254,114,2,.14);
            margin: 0 -20px; padding: 0 20px; border-left: 3px solid var(--orange); }

/* ============================================================
   REUSABLE CONTENT COMPONENTS  (added for the talk)
   ============================================================ */

/* ---- eyebrow variants on dark backgrounds ---- */
.eyebrow.on-dark { color: var(--teal); }
.lead.on-dark    { color: #fff; }
.body.on-dark    { color: var(--slate-200); }
.muted.on-dark   { color: var(--slate-400); }

/* ---- section kicker used at top of content bodies ---- */
.kicker {
  font-family: var(--font-head);
  font-size: 14px; font-weight: 700; letter-spacing: 3px;
  color: var(--teal); text-transform: uppercase; margin: 0 0 14px;
}
/* bigger body/lead helpers for full-canvas slides */
.lead.xl { font-size: 26px; }
.lead.lg { font-size: 22px; }
.body.lg { font-size: 19px; line-height: 1.55; }

/* ---- pills / tags ---- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 14px; border-radius: 999px;
  font-family: var(--font-head); font-size: 13px; font-weight: 700;
  letter-spacing: .4px; line-height: 1;
  background: var(--panel-tint); border: 1px solid var(--panel-line);
  color: var(--navy-800);
}
.pill.orange { background: #FFF1E6; border-color: #FFD2AC; color: #C4560E; }
.pill.teal   { background: #E5F7F4; border-color: #A9E6DD; color: #0E7A6E; }
.pill.blue   { background: #E8F1FE; border-color: #B7D3FB; color: #1E5FC4; }
.pill.dot::before { content:""; width:7px; height:7px; border-radius:50%; background: currentColor; }

/* ---- about-me slide (portrait + roles + podcast card) ---- */
.me-photo {
  border-radius: 20px; overflow: hidden; border: 1px solid var(--panel-line);
  background: var(--panel-tint); box-shadow: 0 10px 30px rgba(15,34,71,.10);
  position: relative;
}
.me-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; display: block; }
.me-caption { margin: 0; text-align: center; font-family: var(--font-head); font-size: 14px; letter-spacing: .14em; text-transform: uppercase; color: var(--slate-500); }
.me-roles { display: flex; flex-wrap: wrap; gap: 12px; max-width: 520px; }
.me-roles .pill { font-size: 15.5px; padding: 10px 18px; }
.me-podcast {
  display: inline-flex; align-self: flex-start; align-items: center; gap: 18px; margin-top: 30px;
  padding: 16px 26px 16px 18px; border-radius: 16px;
  background: var(--panel-tint); border: 1px solid var(--panel-line);
  box-shadow: 0 5px 18px rgba(15,34,71,.07);
}
.me-podcast .mp-logo { width: 66px; height: 66px; border-radius: 12px; display: block; }
.me-podcast .mp-txt { margin-right: 6px; }
.me-podcast .mp-role {
  margin: 0 0 3px; font-family: var(--font-head); font-weight: 800;
  font-size: 12px; letter-spacing: 2.5px; color: var(--orange);
}
.me-podcast .mp-name {
  margin: 0; font-family: var(--font-head); font-weight: 700;
  font-size: 19px; color: var(--navy-800);
}
.me-podcast .mp-desc {
  margin: 5px 0 0; font-size: 13.5px; line-height: 1.35; color: var(--slate-500); max-width: 400px;
}
.me-podcast .mp-link {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 12px 0 0; padding: 9px 16px; border-radius: 999px;
  text-decoration: none; white-space: nowrap;
  font-family: var(--font-head); font-weight: 700; line-height: 1;
  color: #fff; background: linear-gradient(135deg, var(--orange) 0%, var(--orange-2) 100%);
  box-shadow: 0 4px 14px rgba(254,114,2,.32);
}
.me-podcast .mp-link-label {
  font-size: 11px; letter-spacing: 1.6px; text-transform: uppercase;
  padding-right: 10px; border-right: 1px solid rgba(255,255,255,.42);
  color: rgba(255,255,255,.92);
}
.me-podcast .mp-link-url { font-size: 15.5px; }
.me-podcast .mp-link-arrow { font-size: 15px; color: rgba(255,255,255,.9); }

/* ---- tick / cross lists ---- */
.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li {
  position: relative; padding: 0 0 18px 38px;
  color: var(--ink-600); font-size: 18.5px; line-height: 1.5;
}
.ticks.tight li { padding-bottom: 12px; font-size: 16.5px; }
.ticks li::before {
  position: absolute; left: 0; top: -1px;
  width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; font-family: var(--font-head);
}
.ticks li.ok::before  { content:"✓"; background:#E5F7F4; color:#0E7A6E; }
.ticks li.no::before  { content:"✕"; background:#FCE9E9; color:#C0392B; }
.ticks li.dot::before { content:""; background:var(--orange); width:9px; height:9px; margin:6px 0 0 6px; }
.ticks li b { color: var(--navy-800); }
.ticks.on-dark li   { color: var(--slate-200); }
.ticks.on-dark li b { color: #fff; }

/* ---- callout / note box ---- */
.callout {
  border-radius: 12px; padding: 16px 20px;
  border: 1px solid var(--panel-line); background: var(--panel-tint);
}
.callout .ct {
  font-family: var(--font-head); font-weight: 700; font-size: 14px;
  letter-spacing: .3px; margin: 0 0 6px; color: var(--navy-800);
  display:flex; align-items:center; gap:8px;
}
.callout .cb { color: var(--ink-600); font-size: 17px; line-height: 1.55; margin: 0; }
.callout.big { padding: 22px 26px; }
.callout.big .ct { font-size: 16px; }
.callout.big .cb { font-size: 19px; }
.callout.warn { background:#FFF6EC; border-color:#FFD2AC; }
.callout.warn .ct { color:#C4560E; }
.callout.good { background:#E9F8F4; border-color:#A9E6DD; }
.callout.good .ct { color:#0E7A6E; }
.callout.info { background:#EAF2FE; border-color:#B7D3FB; }
.callout.info .ct { color:#1E5FC4; }
/* dark-slide callout */
.callout.dark { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.14); }
.callout.dark .ct { color:#fff; } .callout.dark .cb { color: var(--slate-200); }
/* "did you know" aside — deliberately quiet: worth knowing, not today's focus */
.callout.aside {
  background: #FBFCFE; border-style: dashed; border-color: var(--line-soft);
}
.callout.aside .ct { color: var(--slate-500); }
.callout.aside .cb { color: var(--slate-500); font-size: 15.5px; }
.callout.aside .cb b { color: var(--ink-600); }
.callout.aside.big .cb { font-size: 17px; }

/* ---- stat / KPI tiles ---- */
.stat { text-align: left; }
.stat .num {
  font-family: var(--font-head); font-weight: 700; line-height: 1;
  font-size: 58px; color: var(--orange);
}
.stat .lbl { color: var(--ink-600); font-size: 16px; margin-top: 10px; line-height:1.4; }
.stat.teal .num { color: var(--teal); }
.stat.blue .num { color: var(--blue); }
.stat.on-dark .num { color: var(--cyan); }
.stat.on-dark .lbl { color: var(--slate-200); }

/* ---- compare table (two/three columns) ---- */
.cmp { width: 100%; border-collapse: separate; border-spacing: 0; }
.cmp th, .cmp td {
  text-align: left; padding: 18px 18px; font-size: 18px;
  border-bottom: 1px solid var(--line-soft); color: var(--ink-600);
}
.cmp th {
  font-family: var(--font-head); font-weight: 700; color: var(--navy-800);
  font-size: 15px; letter-spacing: .3px;
  border-bottom: 2px solid var(--panel-line);
}
.cmp tr td:first-child, .cmp tr th:first-child {
  font-family: var(--font-head); font-weight: 700; color: var(--navy-800); font-size: 16px;
}
.cmp .win { color:#0E7A6E; font-weight:700; }
.cmp .lose{ color:#C0392B; }
/* compact variant for dense reference tables */
.cmp.compact th, .cmp.compact td { padding:9px 16px; font-size:16.5px; }
.cmp.compact th { font-size:13.5px; }
.cmp.compact tr td:first-child, .cmp.compact tr th:first-child { font-size:15px; }

/* ---- pipeline flow (horizontal steps) ---- */
.flow { display: flex; align-items: stretch; gap: 0; }
.flow .step {
  flex: 1; position: relative; text-align: center;
  padding: 34px 18px; border-radius: 16px;
  background: var(--panel-tint); border: 1px solid var(--panel-line);
}
.flow .step .ic { font-size: 40px; line-height: 1; margin-bottom: 14px; }
.flow .step .st { font-family: var(--font-head); font-weight: 700;
                  color: var(--navy-800); font-size: 21px; margin: 0 0 6px; }
.flow .step .sd { color: var(--ink-600); font-size: 15px; line-height: 1.4; margin: 0; }
.flow .arrow { align-self: center; color: var(--orange); font-size: 26px;
               font-weight: 700; padding: 0 12px; }
.flow .step .no { position:absolute; top:10px; right:14px; font-family:var(--font-head);
                  font-weight:700; font-size:13px; color:var(--slate-400); }

/* ---- chat bubbles (Telegram-style) ---- */
.chat { display: flex; flex-direction: column; gap: 14px; }
.chat .row { display: flex; }
.chat .row.me { justify-content: flex-end; }
.bubble {
  max-width: 78%; padding: 13px 18px; border-radius: 18px;
  font-size: 18px; line-height: 1.45; position: relative;
}
.bubble .who { display:block; font-family:var(--font-head); font-weight:700;
               font-size: 12.5px; letter-spacing:.4px; margin-bottom: 4px; opacity:.8; }
/* incoming (user) — light grey, left */
.chat .row.them .bubble { background: var(--panel-tint); border:1px solid var(--panel-line);
                          color: var(--navy-800); border-bottom-left-radius: 5px; }
.chat .row.them .who { color: var(--slate-500); }
/* outgoing (assistant / me) — teal, right */
.chat .row.me .bubble { background: #12A594; color: #fff; border-bottom-right-radius: 5px; }
.chat .row.me .who { color: #CFF3ED; }
/* dark-background chat variant */
.chat.on-dark .row.them .bubble { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.14); color:#EAF0FF; }
.chat.on-dark .row.them .who { color: var(--slate-300); }
/* compact variant — for 6-bubble transcripts that must fit one slide */
.chat.compact { gap: 8px; }
.chat.compact .bubble { font-size: 15.5px; padding: 8px 13px; border-radius: 14px; max-width: 82%; }
.chat.compact .bubble .who { font-size: 10.5px; margin-bottom: 2px; }

/* ---- LoRA diagram helpers ---- */
.lora-diagram { display:flex; align-items:center; gap: 26px; justify-content:center; }
.wblock {
  border-radius: 12px; text-align:center; padding: 16px;
  font-family: var(--font-head); font-weight:700;
}
.wblock.frozen { background: #EEF2F9; border: 1.5px solid var(--panel-line);
                 color: var(--slate-500); }
.wblock.frozen .big { font-size: 40px; color: var(--navy-800); }
.wblock.lora   { background: #FFF1E6; border: 1.5px solid var(--orange);
                 color: #C4560E; }
.lora-plus { font-size: 34px; color: var(--slate-400); font-weight:700; }
.dim-tag { font-family:var(--font-body); font-weight:400; font-size:12px; color:var(--slate-500); margin-top:6px; }

/* ---- number-badge headings for step lists ---- */
.numlist { list-style:none; margin:0; padding:0; }
.numlist li { position:relative; padding: 0 0 20px 50px; color: var(--ink-600);
              font-size:18.5px; line-height:1.5; }
.numlist li .n { position:absolute; left:0; top:-2px; width:32px; height:32px;
                 border-radius:9px; background:var(--navy-800); color:#fff;
                 font-family:var(--font-head); font-weight:700; font-size:16px;
                 display:flex; align-items:center; justify-content:center; }
.numlist li b { color: var(--navy-800); }

/* ---- generic grid helpers ---- */
.grid2 { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.grid3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:18px; }
.grid4 { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.row-flex { display:flex; gap:18px; }

/* ---- live-demo screenshot frame (browser-chrome look) ---- */
.shot {
  border-radius: 12px; overflow: hidden; background: #fff;
  border: 1px solid var(--panel-line); box-shadow: 0 10px 30px rgba(15,34,71,.14);
}
.shot .bar {
  display: flex; align-items: center; gap: 7px;
  padding: 8px 12px; background: #EEF2FA; border-bottom: 1px solid var(--panel-line);
}
.shot .bar i { width: 9px; height: 9px; border-radius: 50%; background: #CBD5E8; display: block; }
.shot .bar span {
  margin-left: 8px; font-family: var(--font-mono); font-size: 11.5px; color: var(--slate-500);
}
.shot img { width: 100%; display: block; }
/* crop to the interesting top region when the source is a tall screenshot */
.shot.crop { position: relative; }
.shot.crop .win { overflow: hidden; }
.shot.crop .win img { margin-top: 0; }

/* ---- big "clone this repo" banner ---- */
.repo-banner {
  display:flex; align-items:center; gap:22px;
  padding:20px 28px; border-radius:16px;
  background:var(--navy-900); border:1px solid var(--navy-700);
  box-shadow:0 8px 26px rgba(15,34,71,.18);
}
.repo-banner .rb-ic { font-size:38px; line-height:1; flex:none; }
.repo-banner .rb-txt { flex:1; min-width:0; }
.repo-banner .rb-label {
  margin:0 0 6px; font-family:var(--font-head); font-weight:800;
  font-size:12.5px; letter-spacing:2.5px; color:var(--teal);
  text-transform:uppercase;
}
.repo-banner .rb-url {
  margin:0; font-family:var(--font-mono); font-weight:700;
  font-size:29px; line-height:1.15; color:#fff;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.repo-banner .rb-url .host { color:var(--slate-400); font-weight:400; }
.repo-banner .rb-note { margin:7px 0 0; font-size:15px; color:var(--slate-300); }

/* ---- "how to succeed" rule cards (icon + rule + why) ---- */
.rules { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.rule {
  position:relative; display:flex; align-items:flex-start; gap:14px;
  padding:16px 18px; border-radius:14px;
  background:var(--panel-tint); border:1px solid var(--panel-line);
  box-shadow:0 5px 18px rgba(15,34,71,.06);
  border-top:3px solid var(--panel-line);
}
.rule .ic {
  flex:none; font-size:24px; line-height:1;
  width:44px; height:44px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  background:#fff; border:1px solid var(--panel-line);
}
.rule .rt {
  margin:0 0 5px; font-family:var(--font-head); font-weight:700;
  font-size:18.5px; line-height:1.2; color:var(--navy-800);
}
.rule .rb { margin:0; color:var(--ink-600); font-size:14.5px; line-height:1.4; }
.rule .rb b { color:var(--navy-800); }
/* accent variants — colour the top edge + icon tile */
.rule.orange { border-top-color:var(--orange); }
.rule.orange .ic { background:#FFF1E6; border-color:#FFD2AC; }
.rule.teal   { border-top-color:var(--teal); }
.rule.teal   .ic { background:#E5F7F4; border-color:#A9E6DD; }
.rule.blue   { border-top-color:var(--blue); }
.rule.blue   .ic { background:#E8F1FE; border-color:#B7D3FB; }

/* ---- token strip (for the -100 masking slide) ---- */
.tokgrid { display:flex; align-items:stretch; gap:10px; }
.tokcol  { flex:1; display:flex; flex-direction:column; gap:10px; }
.tokcol .tk, .tokcol .lb {
  font-family: var(--font-mono); text-align:center; white-space:nowrap; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
}
.tokcol .tk { padding:18px 10px; font-size:22px; font-weight:700; }
.tokcol .lb { padding:14px 10px; font-size:19px; }
.tokcol.ctx .tk { background:#EEF2F9; color:#3A4866; border:1px solid var(--panel-line); }
.tokcol.ctx .lb { background:#F5F7FB; color:#AEB6CF; border:1.5px dashed #C6D0E4; }
.tokcol.tgt .tk { background:#DFF3EE; color:#0E7A6E; border:1px solid #A9E6DD; }
.tokcol.tgt .lb { background:#C8EBE1; color:#0E7A6E; border:1.5px solid #A9E6DD; font-weight:700; }
.tokcap { font-family:var(--font-body); font-size:15px; color:var(--slate-500); }

/* ---- big pull-quote (for punchline slides) ---- */
.pull {
  font-family: var(--font-head); font-weight: 700; color: #fff;
  font-size: 40px; line-height: 1.25;
}
.pull .accent { color: var(--teal); }
.pull .orange { color: var(--orange); }

/* ============================================================
   HANDS-ON / NOTEBOOK DEMO COMPONENTS
   (the "now switch to Colab" slide that closes each section)
   ============================================================ */

/* eyebrow that marks a hands-on slide */
.demo-eyebrow {
  display:inline-flex; align-items:center; gap:9px;
  font-family: var(--font-head); font-weight:700; font-size:14px;
  letter-spacing:3px; text-transform:uppercase; color:#0E7A6E;
  background:#E5F7F4; border:1px solid #A9E6DD; border-radius:999px;
  padding:7px 16px;
}

/* a notebook card — one per notebook you'll open */
.nb {
  display:flex; align-items:flex-start; gap:16px;
  background:#ECF9F5; border:1px solid #A9E6DD;
  border-left:6px solid var(--teal); border-radius:12px;
  padding:16px 20px;
}
.nb + .nb { margin-top:14px; }
.nb .ic { font-size:26px; line-height:1; flex:0 0 auto; margin-top:2px; }
.nb .meta { flex:1; min-width:0; }
.nb .nm  { font-family:var(--font-head); font-weight:700; color:var(--navy-800);
           font-size:18.5px; margin:0 0 3px; }
.nb .fl  { font-family:var(--font-mono); font-size:12.5px; color:#0E7A6E;
           background:#fff; border:1px solid #A9E6DD; border-radius:7px;
           padding:2px 8px; display:inline-block; margin:0 0 8px;
           max-width:100%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.nb .ds  { color:var(--ink-600); font-size:15.5px; line-height:1.45; margin:0; }
.nb .tag { flex:0 0 auto; align-self:flex-start; font-family:var(--font-head);
           font-weight:700; font-size:11px; letter-spacing:.4px; border-radius:999px;
           padding:4px 11px; }
.nb .tag.demo    { background:#E8F1FE; border:1px solid #B7D3FB; color:#1E5FC4; }
.nb .tag.project { background:#FFF1E6; border:1px solid #FFD2AC; color:#C4560E; }
/* "already written for you" vs "you fill the TODOs" */
.nb .tag.given   { background:#EEF2F9; border:1px solid var(--panel-line); color:var(--slate-500); }
.nb .tag.build   { background:#FFE9D6; border:1px solid var(--orange); color:#C4560E; }
/* a card for a file that is provided, not built — mute the teal accent */
.nb.given { background:#F5F7FB; border-color:var(--panel-line); border-left-color:var(--slate-400); }
.nb.given .fl { color:var(--slate-500); border-color:var(--panel-line); }

/* compact variant when a slide lists 3+ notebooks */
.nb.sm { padding:12px 16px; gap:12px; }
.nb.sm .ic { font-size:21px; }
.nb.sm .nm { font-size:16px; }
.nb.sm .ds { font-size:13.5px; }
.nb.sm .fl { font-size:11px; margin-bottom:6px; }

/* a small "what to point out" checklist beside the notebooks */
.watch { list-style:none; margin:0; padding:0; }
.watch li { position:relative; padding:0 0 12px 30px; color:var(--ink-600);
            font-size:16.5px; line-height:1.45; }
.watch li::before { content:"👁"; position:absolute; left:0; top:0; font-size:16px; }
.watch li b { color:var(--navy-800); }

/* a running "time budget" chip for the 8-hour pacing */
.timechip {
  display:inline-flex; align-items:center; gap:7px;
  font-family:var(--font-head); font-weight:700; font-size:12.5px;
  color:var(--slate-500); letter-spacing:.4px;
  background:var(--panel-tint); border:1px solid var(--panel-line);
  border-radius:999px; padding:5px 13px;
}
.timechip::before { content:"⏱"; font-size:13px; }