/* =========================================================================
   HPT Deck Design System v2 — built to Victor's concept mockups (2026-08-17).
   Navy canvas, course chrome (header + footer/progress), the color law
   (gold=math, green=accent/correct, teal=diagrams/cards, red=eliminated),
   the avatar guide + speech bubble, and the slide-type layouts
   (Explainer / Your Turn / Answer Reveal / Title). All programmatic — the
   only raster is the title photo + the transparent avatar PNGs.
   ========================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --navy-deep: #0e2233;
  --navy: #163a52;
  --navy-hi: #1d4a60;
  --card: #17384c;
  --line: rgba(255,255,255,0.12);
  --gold: #f2c94c;
  --green: #a8c63e;
  --green-deep: #8fae2f;
  --teal: #47b6c9;
  --red: #e06666;
  --ink: #16203f;
  --white: #ffffff;
  --soft: #c4d3df;
  --muted: #8aa0b0;
  --navy-gradient: radial-gradient(120% 90% at 30% 0%, #1d4a60 0%, #163a52 45%, #0e2233 100%);
}

/* Navy everywhere behind the slide so the 16:9 deck letterboxing on a 4:3 iPad
   shows navy (invisible against the navy slides), not white bars. */
html, body, .reveal-viewport, .reveal { background: #0e2233; }
.reveal .backgrounds { background: #0e2233; }

.reveal { font-family: 'Inter', -apple-system, sans-serif; color: var(--white); letter-spacing: -0.01em; }
.reveal .slides { text-align: left; }
.reveal .slides section { top: 0 !important; height: 100%; }

/* ---- Slide base ---------------------------------------------------------- */
.reveal section.slide {
  position: absolute; inset: 0; width: 100%; height: 100%;
  padding: 92px 70px 78px;   /* room for header + footer chrome */
  box-sizing: border-box;
  background: var(--navy-gradient);
}
/* STANDARD titled-slide layout: the title sits at a fixed position (a consistent
   gap below the header — matches the "Why do colleges care?" spot Victor likes),
   and everything after it lives in a .fill-center wrapper that centers in the
   remaining space. Both class names share this behavior so every titled slide's
   title lands in exactly the same place. (2026-08-19) */
.reveal section.slide.stack-top,
.reveal section.slide.vcenter { display: flex !important; flex-direction: column; padding-top: 124px; }
.stack-top .fill-center, .vcenter .fill-center { flex: 1; display: flex; flex-direction: column; justify-content: center; min-height: 0; }
.reveal section.slide.light { background: linear-gradient(150deg, #ffffff, #eef3f6); color: var(--ink); }
.reveal section.slide.light .slide-title { color: var(--ink); }
.reveal section.slide.light .slide-sub { color: #5a6b7a; }

/* ---- Header (injected by deck-chrome.js) --------------------------------- */
.deck-header {
  position: absolute; top: 30px; left: 70px; right: 70px;
  display: flex; align-items: center; justify-content: space-between;
}
.deck-header .dh-logo { display: flex; align-items: center; gap: 10px; }
.deck-header .dh-logo img { height: 34px; }
.deck-header .dh-word { font-size: 15px; font-weight: 800; letter-spacing: 0.01em; line-height: 1; }
.light .deck-header .dh-word { color: var(--ink); }
.deck-header .dh-word .g { color: var(--green); }
.deck-header .dh-eyebrow {
  font-size: 15px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
  color: #ccdae5; text-align: right;
}
.deck-header .dh-eyebrow .sep { color: var(--green); }
.light .deck-header .dh-eyebrow { color: #5a6b7a; }

/* ---- Footer (injected) --------------------------------------------------- */
/* left: bar-chart icon + session label · center: progress dots · right: page */
.deck-footer {
  position: absolute; bottom: 26px; left: 70px; right: 70px;
  display: flex; align-items: center;
  font-size: 15.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
}
.deck-footer .df-session { display: inline-flex; align-items: center; gap: 9px; color: var(--muted); }
.deck-footer .df-ico { color: var(--green); display: inline-flex; }
.deck-footer .df-ico svg { width: 17px; height: 17px; fill: currentColor; }
.deck-footer .df-dots { position: absolute; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; align-items: center; }
.deck-footer .df-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.20); transition: all 0.2s ease; }
.deck-footer .df-dot.on { width: 11px; height: 11px; background: var(--green); }
.light .deck-footer .df-dot { background: rgba(0,0,0,0.14); }
.light .deck-footer .df-dot.on { background: var(--green-deep); }
.deck-footer .df-page { margin-left: auto; color: var(--muted); }

/* ---- Titles -------------------------------------------------------------- */
.reveal .slide-title { font-size: 62px; font-weight: 900; line-height: 1.04; margin: 0 0 8px; color: var(--white); letter-spacing: -0.02em; }
.reveal .slide-title .g { color: var(--green); }
.reveal .slide-sub { font-size: 22px; font-weight: 500; color: var(--soft); margin: 0 0 22px; }
.reveal .center { text-align: center; }
.reveal .center .slide-title, .reveal .center .slide-sub { text-align: center; }

/* ---- Explainer layout ---------------------------------------------------- */
.explainer-body { display: flex; gap: 30px; align-items: center; height: calc(100% - 120px); }
.explainer-main { flex: 1.35; display: flex; flex-direction: column; justify-content: center; gap: 22px; }
.formula { font-size: 58px; font-weight: 800; color: var(--gold); font-style: italic; letter-spacing: 0.01em; }
.formula sup { font-size: 0.55em; font-style: normal; }

/* diagram container (inline SVG) */
.diagram svg { width: 100%; max-width: 460px; height: auto; }
.diagram .side-label { fill: var(--teal); font: 700 30px Inter, sans-serif; font-style: italic; }
.diagram .stroke { stroke: var(--teal); stroke-width: 5; fill: none; }
.diagram .right-angle { stroke: var(--teal); stroke-width: 4; fill: none; }

/* ---- Concept-card system (uniform way to present a concept) --------------- */
/* One card per idea, labeled by TYPE so students instantly know what they're
   looking at. data-type drives the icon tile color + label color. */
.concept-card {
  background: linear-gradient(180deg, #1b415a, #163a52);
  border: 1px solid rgba(255,255,255,0.10); border-radius: 20px;
  padding: 22px 28px 24px; box-shadow: 0 16px 34px rgba(0,0,0,0.28);
}
.concept-card .cc-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.concept-card .cc-icon {
  width: 38px; height: 38px; border-radius: 11px; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
}
.concept-card .cc-icon svg { width: 21px; height: 21px; fill: currentColor; }
.concept-card .cc-icon .fx { font-weight: 900; font-style: italic; font-size: 19px; line-height: 1; }
.concept-card .cc-label { font-size: 15px; font-weight: 800; letter-spacing: 0.15em; text-transform: uppercase; }
/* type accents (extend as we add types) */
.concept-card[data-type="formula"] .cc-icon,
.concept-card[data-type="strategy"] .cc-icon { background: rgba(242,201,76,0.16); color: var(--gold); }
.concept-card[data-type="formula"] .cc-label,
.concept-card[data-type="strategy"] .cc-label { color: var(--gold); }
.concept-card[data-type="keypoints"] .cc-icon,
.concept-card[data-type="keyidea"] .cc-icon,
.concept-card[data-type="concept"] .cc-icon,
.concept-card[data-type="practice"] .cc-icon { background: rgba(168,198,62,0.16); color: var(--green); }
.concept-card[data-type="keypoints"] .cc-label,
.concept-card[data-type="keyidea"] .cc-label,
.concept-card[data-type="concept"] .cc-label,
.concept-card[data-type="practice"] .cc-label { color: var(--green); }
.concept-card[data-type="definition"] .cc-icon,
.concept-card[data-type="example"] .cc-icon { background: rgba(71,182,201,0.16); color: var(--teal); }
.concept-card[data-type="definition"] .cc-label,
.concept-card[data-type="example"] .cc-label { color: var(--teal); }

/* card body helpers */
.cc-formula { text-align: center; color: var(--white); font-size: 52px; margin: 6px 0 16px; }
.cc-formula .katex { color: var(--white); }
.cc-row { display: flex; gap: 28px; align-items: center; }
.cc-bullets { list-style: none; padding: 0; margin: 4px 0 0; }
.cc-bullets li { position: relative; padding-left: 24px; margin-bottom: 12px; font-size: 21px; line-height: 1.35; color: var(--soft); }
.cc-bullets li:last-child { margin-bottom: 0; }
.cc-bullets li::before { content: ''; position: absolute; left: 2px; top: 10px; width: 9px; height: 9px; border-radius: 50%; background: var(--green); }
.cc-bullets b { color: var(--white); }

/* centered diagram inside a card (formula stacked over the triangle) */
.concept-card .diagram.center { text-align: center; margin-top: 6px; }
.concept-card .diagram.center svg { max-width: 330px; }

/* green checkmark list (sits below the card) */
.check-list { list-style: none; padding: 0; margin: 22px 4px 0; }
.check-list li { position: relative; padding-left: 42px; margin-bottom: 15px; font-size: 22px; line-height: 1.35; color: var(--soft); }
.check-list li:last-child { margin-bottom: 0; }
.check-list li::before { content: ''; position: absolute; left: 0; top: 1px; width: 27px; height: 27px; border-radius: 50%; background: var(--green); }
.check-list li::after { content: ''; position: absolute; left: 9.5px; top: 7px; width: 6px; height: 12px; border: solid #14240a; border-width: 0 3px 3px 0; transform: rotate(45deg); }
.check-list b { color: var(--white); }

/* ---- Avatar guide + speech bubble ---------------------------------------- */
.avatar-zone { position: absolute; right: 40px; top: 120px; bottom: 70px; width: 400px; }
.avatar-zone img.avatar { position: absolute; right: 0; bottom: 0; height: 600px; width: auto; filter: drop-shadow(0 18px 28px rgba(0,0,0,0.4)); }

/* Classic outlined speech bubble: white fill, green outline, lightbulb badge,
   downward tail toward the avatar. Sits up-and-left of the avatar's head. */
.speech-bubble {
  position: absolute; top: 60px; right: 208px; width: 290px;
  background: #ffffff; color: var(--ink); border: 2.5px solid var(--green);
  border-radius: 22px; padding: 15px 18px; font-size: 18px; font-weight: 600; line-height: 1.34;
  box-shadow: 0 12px 26px rgba(0,0,0,0.30);
}
.speech-bubble b { color: var(--green-deep); }
/* thought-bubble trail: white/green-outlined dots getting smaller toward the
   avatar (largest nearest the bubble) — classic thought-bubble instead of a tail */
.speech-bubble .sb-trail i {
  position: absolute; border-radius: 50%; background: #ffffff; border: 2.5px solid var(--green);
  box-shadow: 0 4px 8px rgba(0,0,0,0.18);
}
.speech-bubble .sb-trail i:nth-child(1) { width: 15px; height: 15px; bottom: -24px; right: 42px; }
.speech-bubble .sb-trail i:nth-child(2) { width: 9px;  height: 9px;  bottom: -42px; right: 27px; }
.speech-bubble .sb-icon {
  position: absolute; top: -16px; left: -15px; width: 34px; height: 34px; border-radius: 50%;
  background: var(--green); display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.28);
}
.speech-bubble .sb-icon svg { width: 19px; height: 19px; fill: #ffffff; }

/* ---- Answer choices (pills) ---------------------------------------------- */
.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; }
.choices.row { display: flex; gap: 12px; }
.choice {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px; cursor: pointer;
  background: rgba(255,255,255,0.05); border: 2px solid var(--line); border-radius: 14px;
  color: var(--white); font-size: 21px; font-weight: 600; transition: all 0.15s ease;
}
.choice .badge {
  flex: 0 0 auto; width: 34px; height: 34px; border-radius: 9px; display: inline-flex;
  align-items: center; justify-content: center; background: rgba(255,255,255,0.12);
  color: var(--white); font-weight: 800; font-size: 18px;
}
.choice:hover { border-color: var(--teal); }
.choice.selected { border-color: var(--teal); background: rgba(71,182,201,0.14); }
.choice.correct { border-color: var(--green); background: rgba(168,198,62,0.16); }
.choice.correct .badge { background: var(--green); color: #14240a; }
.choice.eliminated { opacity: 0.5; text-decoration: line-through; border-color: var(--red); }
.choice.eliminated .badge { background: var(--red); }

/* ---- Timer chip ---------------------------------------------------------- */
.timer-chip {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 18px;
  padding: 10px 16px; border-radius: 999px; background: rgba(255,255,255,0.06);
  border: 1px solid var(--line); font-size: 17px; color: var(--soft);
}
.timer-chip b { color: var(--white); }

/* Reserve the right zone for the avatar guide so content doesn't collide. */
.with-avatar .explainer-body, .with-avatar .two-col { padding-right: 372px; }
.with-avatar .score-track { padding-right: 392px; }

/* ---- Two-column generic (Your Turn / Answer Reveal) ---------------------- */
.two-col { display: flex; gap: 34px; align-items: center; height: calc(100% - 120px); }
.two-col > .col { flex: 1; }
.given { font-size: 24px; line-height: 1.5; }
.given .q { color: var(--teal); font-weight: 700; }

/* worked solution (Answer Reveal) */
.worked { font-size: 30px; font-weight: 700; color: var(--gold); font-style: italic; line-height: 1.7; }
.worked .final { display: inline-block; margin-top: 8px; padding: 4px 14px; border: 2px solid var(--green); border-radius: 10px; color: var(--green); font-style: normal; }

/* big answer box */
.answer-box { border: 3px solid var(--gold); border-radius: 18px; padding: 18px 22px; text-align: center; background: rgba(242,201,76,0.06); }
.answer-box .lab { font-size: 20px; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); }
.answer-box .big { font-size: 84px; font-weight: 900; color: var(--white); line-height: 1; }

/* info card (teal) */
.info-card { margin-top: 16px; padding: 14px 16px; border-radius: 14px; background: var(--card); border: 1px solid rgba(71,182,201,0.4); font-size: 20px; line-height: 1.4; }
.info-card b { color: var(--gold); }
.info-card .ico { color: var(--gold); margin-right: 6px; }

/* ---- Chips (title slide) ------------------------------------------------- */
.chips { display: flex; gap: 12px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 9px; padding: 11px 18px; border-radius: 999px; background: var(--green); color: #14240a; font-weight: 800; font-size: 18px; }
.chip svg { width: 19px; height: 19px; fill: #14240a; flex: 0 0 auto; }

/* ---- Title slide (live text over photo) ---------------------------------- */
.reveal section.title-slide { padding: 0; background: var(--navy-deep); overflow: hidden; }
/* Photo lives in the right panel, centered on the student+laptop (crops the
   bookshelf deadspace). Its left edge is FEATHERED with a mask so it dissolves
   softly into the navy instead of a hard vertical seam. */
.title-photo { position: absolute; left: 40%; right: 0; top: 0; bottom: 0; background-size: cover; background-position: center;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 34%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 34%); }
/* light navy wash over the text area; the photo's own feather does the blend */
.title-scrim { position: absolute; inset: 0;
  background: linear-gradient(90deg, #0e2233 0%, #0e2233 38%, rgba(14,34,51,0) 56%); }
/* space-between spreads the three groups top / middle / bottom so the text
   fills the full height like the photo does (Victor 2026-08-17). */
.title-content { position: absolute; left: 74px; top: 0; bottom: 0; width: 48%; display: flex; flex-direction: column; justify-content: space-between; padding: 92px 0; box-sizing: border-box; }
.title-content .tc-mid { display: flex; flex-direction: column; justify-content: center; }

/* brand lockup — bigger, bolder, HIGH PERFORMANCE > TUTORING, performance green */
.title-content .brandline { display: flex; align-items: center; gap: 15px; margin-bottom: 34px; }
.title-content .brandline img { height: 62px; width: auto; }
.title-content .wm1 { font-size: 33px; font-weight: 900; letter-spacing: 0.015em; line-height: 1; text-transform: uppercase; }
.title-content .wm1 .g { color: var(--green); }
.title-content .wm2 { font-size: 20px; font-weight: 800; letter-spacing: 0.34em; line-height: 1; margin-top: 5px; text-transform: uppercase; color: var(--white); }

.title-eyebrow { font-size: 17px; font-weight: 800; letter-spacing: 0.17em; text-transform: uppercase; color: var(--green); margin-bottom: 14px; }
.title-big { font-size: 96px; font-weight: 900; line-height: 0.96; letter-spacing: -0.03em; margin: 0; }
.title-big .g { color: var(--green); }
.title-tag { font-size: 27px; font-weight: 600; color: var(--soft); margin: 18px 0 28px; }

/* green line + payoff subline under the chips */
.title-foot { display: flex; align-items: center; gap: 16px; margin-top: 30px; }
.title-foot .gline { width: 56px; height: 3px; border-radius: 2px; background: var(--green); }
.title-foot .txt { font-size: 19px; font-weight: 600; color: var(--soft); }

/* ============ Concept Card Design Patterns (2026-08-18) ==================
   Reusable card designs by PURPOSE. Dark variants on navy; light (cream)
   variants for tips / grammar / examples. Faithful to Victor's pattern sheet. */
.pcard { position: relative; border-radius: 20px; overflow: hidden; }
.pcard .pc-title { font-weight: 800; color: #fff; font-size: 26px; letter-spacing: -0.01em; }
.pcard .pc-underline { width: 46px; height: 3px; background: var(--green); border-radius: 2px; margin: 9px 0 13px; }
.pcard .pc-text { font-size: 21px; line-height: 1.42; color: var(--soft); }

/* 1 · DEFINITION — dark, circled book icon + green divider, horizontal */
.pcard.definition { background: #11273a; border: 1px solid rgba(255,255,255,0.09); padding: 28px 30px; display: flex; align-items: center; gap: 24px; }
.pcard.definition .pc-ic { width: 66px; height: 66px; border-radius: 50%; border: 2px solid var(--green); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.pcard.definition .pc-ic svg { width: 32px; height: 32px; stroke: var(--green); fill: none; stroke-width: 2; }
.pcard.definition .pc-div { width: 3px; align-self: stretch; border-radius: 2px; background: linear-gradient(var(--green), rgba(168,198,62,0.12)); }

/* 2 · FORMULA — dark with a green glow, centered (the featured card) */
.pcard.formula { background: #0f2536; border: 2px solid var(--green); box-shadow: 0 0 26px rgba(168,198,62,0.42), inset 0 0 22px rgba(168,198,62,0.05); padding: 22px 30px 26px; text-align: center; }
.pcard.formula .pc-hd { display: flex; align-items: center; gap: 13px; }
.pcard.formula .pc-badge { width: 46px; height: 46px; border-radius: 12px; background: var(--green); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.pcard.formula .pc-badge svg { width: 26px; height: 26px; fill: #14240a; }
.pcard.formula .pc-lab { font-size: 25px; font-weight: 800; color: var(--green); }
.pcard.formula .pc-formula { font-size: 46px; color: #fff; margin: 16px 0 12px; }
.pcard.formula .pc-formula .katex { color: #fff; }
.pcard.formula .pc-sub { font-size: 18px; color: var(--muted); }

/* 3 · STRATEGY — dark, target icon in a white disc overlapping the top */
.pcard.strategy { background: #11273a; border: 1px solid rgba(255,255,255,0.09); padding: 50px 30px 30px; text-align: center; overflow: visible; }
.pcard.strategy .pc-topic { position: absolute; top: -32px; left: 50%; transform: translateX(-50%); width: 68px; height: 68px; border-radius: 50%; background: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 18px rgba(0,0,0,0.35); z-index: 3; }
.pcard.strategy .pc-topic svg { width: 34px; height: 34px; stroke: var(--green-deep); fill: none; stroke-width: 2; }
.pcard.strategy .pc-flank { position: absolute; top: 0; height: 3px; width: 24%; background: var(--green); border-radius: 2px; }
.pcard.strategy .pc-flank.l { left: 13%; } .pcard.strategy .pc-flank.r { right: 13%; }
.pcard.strategy .pc-lab { font-size: 25px; font-weight: 800; color: var(--green); margin-bottom: 8px; }
.pcard.strategy .pc-text { color: #fff; }

/* 4 · SAT TIP — light card, green sidebar with a lightbulb */
.pcard.tip { background: #f5f6f1; display: flex; align-items: stretch; }
.pcard.tip .pc-side { width: 84px; background: var(--green); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.pcard.tip .pc-side svg { width: 36px; height: 36px; fill: #14240a; }
.pcard.tip .pc-body { padding: 26px 28px; }
.pcard.tip .pc-title { color: var(--ink); }
.pcard.tip .pc-text { color: #4a5169; }

/* 5 · GRAMMAR RULE — light, navy top bar + circled doc icon, green highlight */
.pcard.grammar { background: #f5f6f1; padding: 92px 28px 30px; text-align: center; }
.pcard.grammar::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 48px; background: #14324a; }
.pcard.grammar .pc-topic { position: absolute; top: 16px; left: 50%; transform: translateX(-50%); width: 62px; height: 62px; border-radius: 50%; background: #14324a; border: 4px solid #f5f6f1; display: flex; align-items: center; justify-content: center; z-index: 2; }
.pcard.grammar .pc-topic svg { width: 28px; height: 28px; stroke: #fff; fill: none; stroke-width: 2; }
.pcard.grammar .pc-title { color: var(--ink); margin-top: 4px; }
.pcard.grammar .pc-text { color: var(--ink); }
.pcard.grammar .hl { background: rgba(168,198,62,0.55); padding: 1px 4px; border-radius: 3px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }

/* 6 · EXAMPLE — light, circled pencil icon, quote mark, navy base bar */
.pcard.example { background: #f5f6f1; padding: 28px 30px 40px; display: flex; gap: 22px; align-items: flex-start; }
.pcard.example::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 14px; background: #14324a; }
.pcard.example .pc-ic { width: 60px; height: 60px; border-radius: 50%; background: #14324a; display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.pcard.example .pc-ic svg { width: 27px; height: 27px; stroke: #fff; fill: none; stroke-width: 2; }
.pcard.example .pc-title { color: var(--ink); }
.pcard.example .pc-text { color: #4a5169; font-style: italic; }
.pcard.example .pc-quote { position: absolute; right: 26px; bottom: 24px; font-size: 46px; line-height: 1; color: var(--green); font-family: Georgia, serif; }

/* ---- Card-lab showcase layout ---- */
.card-lab { position: absolute; inset: 0; padding: 34px 60px 40px; background: var(--navy-gradient); box-sizing: border-box; }
.card-lab .lab-head { display: flex; align-items: center; gap: 14px; }
.card-lab .lab-head img { height: 40px; }
.card-lab .lab-head .wm1 { font-size: 22px; font-weight: 900; color: #fff; letter-spacing: 0.01em; }
.card-lab .lab-head .wm1 .g { color: var(--green); }
.card-lab h1 { text-align: center; font-size: 46px; font-weight: 900; color: #fff; margin: 2px 0 4px; }
.card-lab .lab-sub { text-align: center; font-size: 20px; color: var(--soft); margin-bottom: 46px; }
.pcard-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px 26px; align-items: start; }

/* ============ Graph / Table / Number-line patterns (2026-08-18) ============
   Reusable visual cards: coordinate graphs (SVG), data tables, number lines. */
.vcard { background: #11273a; border: 1px solid rgba(255,255,255,0.09); border-radius: 20px; padding: 22px 26px 24px; position: relative; overflow: hidden; }
.vcard.glow { background: #0f2536; border: 2px solid var(--green); box-shadow: 0 0 26px rgba(168,198,62,0.4); }
.vcard .vc-head { display: flex; align-items: center; gap: 12px; }
.vcard .vc-badge { width: 42px; height: 42px; border-radius: 11px; background: rgba(168,198,62,0.16); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.vcard.glow .vc-badge { background: var(--green); }
.vcard .vc-badge svg { width: 23px; height: 23px; stroke: var(--green); fill: none; stroke-width: 2; }
.vcard.glow .vc-badge svg { stroke: #14240a; }
.vcard .vc-lab { font-size: 22px; font-weight: 800; color: #fff; }
.vcard.glow .vc-lab { color: var(--green); }
.vcard .vc-underline { width: 42px; height: 3px; background: var(--green); border-radius: 2px; margin: 8px 0 12px; }
.vcard .vc-text { font-size: 17px; color: var(--soft); line-height: 1.4; }
.vcard .vc-row { display: flex; gap: 18px; align-items: center; }
.vcard .vc-eq { font-size: 25px; color: #fff; font-weight: 700; }
.vcard .vc-note { font-size: 16px; color: var(--soft); margin-top: 4px; }
.vcard .vc-note b { color: var(--green); }
.vcard .vc-hl { background: rgba(168,198,62,0.5); color: #fff; padding: 1px 5px; border-radius: 4px; font-weight: 700; }

/* mini coordinate graph (SVG) */
.graph-mini { width: 100%; max-width: 232px; height: auto; }
.graph-mini .axis { stroke: #5e7688; stroke-width: 1.6; }
.graph-mini .plot { stroke: var(--green); stroke-width: 3; fill: none; }
.graph-mini .pt { fill: var(--green); }
.graph-mini .lbl { fill: #7d93a3; font: 500 11px Inter, sans-serif; text-anchor: middle; }

/* data table */
.data-table { border-collapse: collapse; width: 100%; font-size: 18px; }
.data-table th { background: var(--green); color: #14240a; font-weight: 800; padding: 7px 14px; border: 1px solid rgba(255,255,255,0.14); }
.data-table td { color: var(--soft); text-align: center; padding: 7px 14px; border: 1px solid rgba(255,255,255,0.13); }
.data-table td.hl { background: rgba(168,198,62,0.22); color: #fff; font-weight: 700; }

/* number line (SVG) */
.number-line { width: 100%; height: auto; }
.number-line .nl-axis { stroke: #5e7688; stroke-width: 2; }
.number-line .nl-tick { stroke: #5e7688; stroke-width: 1.5; }
.number-line .nl-range { stroke: var(--green); stroke-width: 5; }
.number-line .nl-closed { fill: var(--green); }
.number-line .nl-open { fill: #11273a; stroke: var(--green); stroke-width: 3; }
.number-line .nl-num { fill: #7d93a3; font: 600 13px Inter, sans-serif; text-anchor: middle; }

/* ============ Multiple-choice question slide (2026-08-18) ============ */
.mc-body { display: flex; gap: 30px; align-items: stretch; margin-top: 16px; }
.mc-card { flex: 1; background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 20px; padding: 26px 30px; display: flex; flex-direction: column; }
.mc-lab { display: flex; align-items: center; gap: 11px; margin-bottom: 18px; padding-bottom: 15px; border-bottom: 1px solid rgba(255,255,255,0.13); }
.mc-lab .mc-ic { width: 36px; height: 36px; border-radius: 50%; border: 2px solid currentColor; display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.mc-lab .mc-ic svg { width: 19px; height: 19px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mc-lab .mc-ic svg .fill { fill: currentColor; stroke: none; }
.mc-lab .mc-name { font-size: 15px; font-weight: 800; letter-spacing: 0.15em; text-transform: uppercase; }
/* card titles use teal so they read as a distinct label, separate from the
   white content and the green answer badges */
.mc-card.q { color: var(--teal); }
.mc-card.passage { color: var(--teal); }
.mc-card.choices { color: var(--teal); }
.mc-content { color: #fff; font-size: 23px; line-height: 1.44; font-weight: 500; }
.mc-content .blank { color: var(--green); font-weight: 800; letter-spacing: 0.05em; }
.mc-content em { font-style: italic; color: #fff; }
.mc-sub { color: var(--soft); font-size: 18px; margin-top: 14px; }
.mc-eq { color: #fff; font-size: 34px; margin: 14px 0; }
.mc-eq .katex { color: #fff; }
/* worked-answer emphasis: the resolved value glows green (color law: answer) */
.mc-eq.ans .katex { color: var(--green); }

.mc-choices { list-style: none; padding: 0; margin: 6px 0 0; }
.mc-choices li { display: flex; align-items: center; gap: 15px; margin-bottom: 18px; font-size: 23px; color: #fff; }
.mc-choices li:last-child { margin-bottom: 0; }
.mc-choices .ch-b { width: 42px; height: 42px; border-radius: 50%; border: 2px solid var(--green); color: var(--green); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 20px; flex: 0 0 auto; }
.mc-choices li.correct { color: var(--green); }
.mc-choices li.correct .ch-b { background: var(--green); color: #14240a; }

.mc-chips { display: flex; flex-direction: column; align-items: center; gap: 13px; margin-top: 24px; }
.mc-chip { display: inline-flex; align-items: center; gap: 10px; padding: 11px 22px; border-radius: 999px; border: 1.6px solid var(--green); background: rgba(168,198,62,0.07); font-size: 17.5px; color: var(--soft); }
.mc-chip svg { width: 19px; height: 19px; stroke: var(--green); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
.mc-chip b { color: var(--green); font-weight: 800; }

/* ============ Keynote "moment" slides (2026-08-18) ========================
   The motivational beats every deck needs: cold-open hook, section dividers,
   payoff moments, the close. Big centered type over the navy canvas. Deck 01
   (the intro) leans on these; content decks use them sparingly. */
.reveal section.slide.center-stack {
  display: flex !important; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
}
.center-stack .eyebrow-c { font-size: 18px; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; color: var(--green); margin: 0 0 18px; }
.center-stack .ghost-num { font-size: 168px; font-weight: 900; color: rgba(255,255,255,0.06); line-height: 0.78; letter-spacing: -0.04em; margin: 0 0 4px; }
.center-stack .moment { font-size: 78px; font-weight: 900; line-height: 1.02; letter-spacing: -0.03em; color: #fff; margin: 0; max-width: 17em; }
.center-stack .moment .g { color: var(--green); }
.center-stack .big-number { font-size: 132px; font-weight: 900; color: var(--green); line-height: 1; letter-spacing: -0.02em; margin: 16px 0 0; text-shadow: 0 0 40px rgba(168,198,62,0.28); }
.center-stack .lead-in { font-size: 27px; font-weight: 500; color: var(--soft); line-height: 1.42; max-width: 22em; margin: 22px 0 0; }
.center-stack .lead-in b, .center-stack .foot-note b { color: #fff; font-weight: 700; }
.center-stack .foot-note { font-size: 21px; color: var(--muted); line-height: 1.5; max-width: 25em; margin: 18px 0 0; }
.center-stack .foot-note .g { color: var(--green); }

/* Emphasis reveal: on a reveal.js fragment, fade in while ballooning up big,
   then settle back to normal size (with a subtle bounce). Add class "pop-emph"
   to a `.fragment`. Great for a punchline number/word. */
.reveal .fragment.pop-emph { opacity: 0; }
.reveal .fragment.pop-emph.visible { opacity: 1; animation: pop-emph 0.72s cubic-bezier(0.22,0.68,0.3,1) both; }
@keyframes pop-emph {
  0%   { opacity: 0; transform: scale(0.4); }
  45%  { opacity: 1; transform: scale(1.45); }
  70%  { transform: scale(0.92); }
  100% { transform: scale(1); }
}

/* center-stack with a character on the right: reserve the avatar column so the
   centered text sits in the left region, clear of the avatar. */
.reveal section.slide.center-stack.with-avatar { padding-right: 400px; }

/* payoff highlight chip (few words, big number) */
.pay-hl { margin-top: 24px; display: inline-flex; align-items: baseline; gap: 11px; padding: 12px 26px; border-radius: 999px; border: 1.7px solid var(--green); background: rgba(168,198,62,0.08); font-size: 34px; font-weight: 900; color: #fff; }
.pay-hl b { font-size: 17px; font-weight: 800; letter-spacing: 0.14em; color: var(--green); }

/* Zoom / CTA card used on the close moment */
.join-card {
  margin: 26px 0 0; padding: 20px 30px; border-radius: 16px;
  background: #12293b; border: 1px solid rgba(71,182,201,0.4);
  font-size: 22px; line-height: 1.5; color: var(--soft);
}
.join-card .jc-lab { font-size: 15px; font-weight: 800; letter-spacing: 0.15em; text-transform: uppercase; color: var(--teal); display: block; margin-bottom: 6px; }
.join-card b { color: #fff; }

/* ============ Score-climb track (Stephanie story; reusable data beat) ====== */
.score-track { display: flex; align-items: flex-end; justify-content: center; gap: 0; margin: 30px 0 0; }
.score-node { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.score-node .sn-num { font-size: 48px; font-weight: 900; color: #fff; line-height: 1; }
.score-node .sn-bar { width: 104px; border-radius: 13px 13px 0 0; background: linear-gradient(180deg, #1d4a60, #12293b); border: 1px solid var(--line); border-bottom: none; }
.score-node .sn-lab { font-size: 15px; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.score-node.final .sn-num { color: var(--green); font-size: 58px; }
.score-node.final .sn-bar { background: linear-gradient(180deg, var(--green), var(--green-deep)); border-color: transparent; box-shadow: 0 0 30px rgba(168,198,62,0.42); }
.score-gap { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; padding: 0 8px 30px; }
.score-gap .sg-delta { font-size: 22px; font-weight: 900; color: var(--green); }
.score-gap .sg-what { font-size: 14px; color: var(--muted); max-width: 9em; text-align: center; line-height: 1.3; margin-top: 4px; }
.score-gap .sg-arrow { color: var(--green); font-size: 26px; line-height: 1; margin-top: 2px; }

/* ============ Mini-card grid (3-across info rows: format, why, resources) == */
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 14px; }
.mini-card { background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 18px; padding: 24px 26px 26px; }
.mini-card .mk-h { font-size: 23px; font-weight: 800; color: var(--teal); margin: 0 0 11px; }
.mini-card .mk-t { font-size: 19.5px; line-height: 1.44; color: var(--soft); }
.mini-card .mk-t b { color: #fff; font-weight: 700; }
.mini-card .mk-t .g { color: var(--green); font-weight: 700; }
.mini-card.accent { background: #0f2536; border: 2px solid var(--green); box-shadow: 0 0 24px rgba(168,198,62,0.30); }
.mini-card.accent .mk-h { color: var(--green); }

/* ============ Chart card (shared container for scatter / histogram) ======= */
.chart-card { width: 960px; max-width: 100%; align-self: center; margin: 30px 0 0; background: #11273a; border: 1px solid rgba(255,255,255,0.09); border-radius: 20px; padding: 28px 40px 30px; box-shadow: 0 16px 34px rgba(0,0,0,0.26); }

/* histogram (grouped bars — "success rate by score band") */
.histogram { width: 100%; height: auto; display: block; }
.histogram .hg-axis { stroke: #6c8496; stroke-width: 2.4; }
.histogram .hg-grid { stroke: rgba(255,255,255,0.055); stroke-width: 1; }
.histogram .hb { fill: var(--green); }
.histogram .hg-axlbl { fill: #9fb2c0; font: 800 16px Inter, sans-serif; letter-spacing: 0.12em; text-transform: uppercase; }
.histogram .hg-ylbl { fill: #9fb2c0; font: 800 14px Inter, sans-serif; letter-spacing: 0.1em; text-transform: uppercase; }
.histogram .hg-band { fill: #8fa4b3; font: 600 14px Inter, sans-serif; text-anchor: middle; }
/* bars grow up from the x-axis, left-to-right, when the slide becomes active.
   transform-box:fill-box + origin:bottom → each bar scales from its own baseline.
   Per-bar animation-delay (inline) creates the left-to-right wave. */
.histogram .hb { transform: scaleY(0); transform-box: fill-box; transform-origin: bottom; }
.reveal section.present .histogram .hb { animation: hb-grow 0.6s cubic-bezier(0.2,0.75,0.3,1) forwards; }
@keyframes hb-grow { to { transform: scaleY(1); } }

/* ============ Correlation scatter plot ("X predicts Y" visual) ============ */
.scatter-wrap { width: 960px; max-width: 100%; align-self: center; margin: 30px 0 0; background: #11273a; border: 1px solid rgba(255,255,255,0.09); border-radius: 20px; padding: 28px 40px 30px; box-shadow: 0 16px 34px rgba(0,0,0,0.26); }
.scatter { width: 100%; height: auto; display: block; }
.scatter .sc-axis { stroke: #6c8496; stroke-width: 2.4; }
.scatter .sc-grid { stroke: rgba(255,255,255,0.055); stroke-width: 1; }
.scatter .sc-dot { fill: var(--green); }
.scatter .sc-fit { stroke: #fff; stroke-width: 4; stroke-linecap: round; }
.scatter .sc-axlbl { fill: #9fb2c0; font: 800 16px Inter, sans-serif; letter-spacing: 0.12em; text-transform: uppercase; }
.scatter .sc-tag { fill: #fff; font: 700 15px Inter, sans-serif; }
.scatter .sc-lead { stroke: rgba(255,255,255,0.5); stroke-width: 1.4; }

/* ============ Format "at a glance" — section stat cards ================== */
.fmt-grid { display: flex; gap: 28px; align-self: center; width: 100%; max-width: 1020px; margin-top: 8px; }
.fmt-card { flex: 1; background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 20px; padding: 26px 30px 28px; }
.fmt-h { display: flex; align-items: center; gap: 13px; margin-bottom: 20px; }
.fmt-ic { width: 44px; height: 44px; border-radius: 12px; background: rgba(71,182,201,0.16); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.fmt-ic svg { width: 24px; height: 24px; stroke: var(--teal); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.fmt-name { font-size: 26px; font-weight: 800; color: var(--teal); }
.fmt-stats { display: flex; gap: 14px; }
.fmt-stat { flex: 1; text-align: center; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06); border-radius: 14px; padding: 16px 8px 14px; }
.fmt-stat .n { font-size: 44px; font-weight: 900; color: #fff; line-height: 1; }
.fmt-stat .l { font-size: 13px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }
.fmt-foot { display: flex; gap: 16px; justify-content: center; margin-top: 26px; }
.fmt-chip { display: inline-flex; align-items: center; gap: 10px; padding: 12px 24px; border-radius: 999px; border: 1.6px solid var(--green); background: rgba(168,198,62,0.07); font-size: 18.5px; color: var(--soft); }
.fmt-chip b { color: #fff; font-weight: 800; }
.fmt-chip svg { width: 19px; height: 19px; stroke: var(--green); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }

/* adaptive-flow diagram (Module 1 → branch → harder / easier Module 2) */
.adaptive { width: 100%; max-width: 940px; height: auto; display: block; margin: 0 auto; }
.adaptive .ad-box { fill: #12293b; stroke: rgba(255,255,255,0.15); stroke-width: 2; }
.adaptive .ad-box.m1 { stroke: var(--teal); }
.adaptive .ad-box.hard { fill: #14311f; stroke: var(--green); stroke-width: 2.5; }
.adaptive .ad-t { fill: #fff; font: 800 20px Inter, sans-serif; text-anchor: middle; letter-spacing: 0.02em; }
.adaptive .ad-t.teal { fill: var(--teal); }
.adaptive .ad-t.green { fill: var(--green); }
.adaptive .ad-s { fill: var(--muted); font: 600 14px Inter, sans-serif; text-anchor: middle; }
.adaptive .ad-s.green { fill: var(--green); }
.adaptive .ad-arrow { fill: none; stroke: #6c8496; stroke-width: 2.6; }
.adaptive .ad-arrow.up { stroke: var(--green); }
.adaptive .ad-lab { font: 800 13px Inter, sans-serif; text-anchor: middle; letter-spacing: 0.09em; text-transform: uppercase; }
.adaptive .ad-lab.up { fill: var(--green); }
.adaptive .ad-lab.dn { fill: var(--muted); }

/* lower stack (diagram + score spectrum) */
.fmt-lower { display: flex; flex-direction: column; align-items: center; gap: 20px; width: 100%; }

/* score-spectrum number line (400 → 1600) */
.score-spectrum { width: 100%; max-width: 940px; height: auto; display: block; margin: 0 auto; }
.score-spectrum .sp-zone { font: 800 15px Inter, sans-serif; text-anchor: middle; letter-spacing: 0.02em; text-transform: uppercase; }
.score-spectrum .sp-div { stroke: #0e2233; stroke-width: 2.5; }
.score-spectrum .sp-num { fill: #c4d3df; font: 700 19px Inter, sans-serif; text-anchor: middle; }

/* ===== "What does your score mean?" — breakdown card + testing-policy pie == */
.wsm-lower { display: flex; flex-direction: column; align-items: center; gap: 30px; width: 100%; }
.wsm-row { display: flex; gap: 34px; width: 100%; max-width: 1020px; align-self: center; }
.wsm-card { flex: 1; background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 18px; padding: 22px 30px 24px; display: flex; flex-direction: column; }
.wsm-h { font-size: 20px; font-weight: 800; color: var(--teal); letter-spacing: 0.03em; margin-bottom: 14px; }
/* score breakdown rows */
.brk-row { display: flex; justify-content: space-between; align-items: baseline; padding: 9px 0; font-size: 23px; }
.brk-row .brk-name { color: var(--soft); font-weight: 600; }
.brk-row .brk-range { color: #fff; font-weight: 800; font-variant-numeric: tabular-nums; }
.brk-rule { height: 1px; background: rgba(255,255,255,0.14); margin: 6px 0; }
.brk-row.tot { padding-top: 11px; }
.brk-row.tot .brk-name { color: #fff; font-weight: 800; }
.brk-row.tot .brk-range { color: var(--green); font-size: 28px; }
/* testing-policy pie */
.pie-wrap { display: flex; align-items: center; gap: 22px; flex: 1; }
.pie { width: 184px; height: auto; flex: 0 0 auto; }
.pie-legend { display: flex; flex-direction: column; gap: 12px; flex: 1; }
.pl-row { display: flex; align-items: center; gap: 11px; font-size: 19px; }
.pl-dot { width: 15px; height: 15px; border-radius: 4px; flex: 0 0 auto; }
.pl-lab { color: var(--soft); font-weight: 600; }
.pl-pct { margin-left: auto; color: #fff; font-weight: 800; }
.pie-src { font-size: 13px; color: var(--muted); margin-top: 14px; font-style: italic; }
.pie .pie-in { fill: #14240a; font: 900 19px Inter, sans-serif; text-anchor: middle; }
.pie .pie-lab { font: 800 15px Inter, sans-serif; }
.pie .pie-leader { stroke: rgba(255,255,255,0.45); stroke-width: 1.2; fill: none; }

/* ============ "How do I raise my score?" section (2026-08-19) ============= */
/* generic multi-card rows */
.cards-2 { display: flex; gap: 30px; width: 100%; max-width: 1000px; align-self: center; align-items: stretch; }
.cards-3 { display: flex; gap: 24px; width: 100%; max-width: 1060px; align-self: center; align-items: stretch; }
.cards-2 > *, .cards-3 > * { flex: 1; }

/* tested-topic chips (you don't have to learn everything) */
.tchips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.tchip { display: inline-block; padding: 9px 15px; border-radius: 999px; border: 1.5px solid var(--green); background: rgba(168,198,62,0.09); font-size: 16.5px; font-weight: 700; color: #fff; }
.tchip em { font-style: italic; color: var(--green); }

/* 4 study-path cards (pros/cons) */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; width: 100%; max-width: 1090px; align-self: center; }
.path-card { background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 16px; padding: 20px 20px 22px; display: flex; flex-direction: column; }
.path-card.feat { border: 2px solid var(--green); box-shadow: 0 0 22px rgba(168,198,62,0.22); }
.path-ic { width: 46px; height: 46px; border-radius: 12px; background: rgba(71,182,201,0.16); display: flex; align-items: center; justify-content: center; margin-bottom: 13px; }
.path-ic svg { width: 25px; height: 25px; stroke: var(--teal); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.path-card.feat .path-ic { background: rgba(168,198,62,0.2); }
.path-card.feat .path-ic svg { stroke: var(--green); }
.path-name { font-size: 20px; font-weight: 800; color: #fff; }
.path-cost { font-size: 14px; font-weight: 800; color: var(--muted); letter-spacing: 0.1em; margin: 3px 0 15px; }
.path-line { display: flex; gap: 9px; align-items: flex-start; font-size: 16px; line-height: 1.32; margin-bottom: 10px; color: var(--soft); }
.path-line:last-child { margin-bottom: 0; }
.path-line .ic { flex: 0 0 auto; font-weight: 900; font-size: 16px; line-height: 1.3; }
.path-line.pro .ic { color: var(--green); }
.path-line.con .ic { color: var(--red); }

/* stat trio (study habits) */
.stat-trio { display: flex; gap: 28px; width: 100%; max-width: 980px; align-self: center; }
.stat-box { flex: 1; text-align: center; background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 18px; padding: 26px 18px 24px; }
.stat-box .stat-img { width: 100%; height: 150px; object-fit: contain; display: block; margin: 0 auto 16px; }
.stat-box .sb-n { font-size: 44px; font-weight: 900; color: var(--green); line-height: 1.1; }
.stat-box .sb-l { font-size: 44px; font-weight: 900; color: var(--soft); margin-top: 2px; line-height: 1.1; }

/* Bluebook app-window mockup */
.bb-window { background: #0c1f2e; border: 1px solid rgba(255,255,255,0.13); border-radius: 14px; overflow: hidden; box-shadow: 0 16px 34px rgba(0,0,0,0.34); }
.bb-bar { background: #14324a; padding: 10px 15px; display: flex; align-items: center; gap: 7px; }
.bb-bar .d { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.28); }
.bb-bar .t { margin-left: 10px; font-size: 14px; font-weight: 700; color: var(--soft); letter-spacing: 0.04em; }
.bb-scr { padding: 20px 22px 24px; }
.bb-q { font-size: 18px; color: #fff; line-height: 1.4; margin-bottom: 16px; font-weight: 600; }
.bb-opt { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border: 1.5px solid rgba(255,255,255,0.14); border-radius: 10px; margin-bottom: 10px; font-size: 16px; color: var(--soft); }
.bb-opt:last-child { margin-bottom: 0; }
.bb-opt .b { width: 26px; height: 26px; border-radius: 50%; border: 1.5px solid var(--muted); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; flex: 0 0 auto; }
.bb-opt.on { border-color: var(--green); color: #fff; }
.bb-opt.on .b { background: var(--green); border-color: var(--green); color: #14240a; }

/* power-cycle diagram (3 nodes 120° apart + thick clockwise arrows) */
.power-cycle { width: 100%; max-width: 1050px; height: auto; display: block; margin: 0 auto; }
.power-cycle .pcy-node { fill: #12293b; stroke: var(--teal); stroke-width: 3; }
.power-cycle .pcy-arrow { fill: none; stroke: var(--green); stroke-width: 8; stroke-linecap: round; }
.power-cycle .pcy-badge { fill: var(--green); }
.power-cycle .pcy-bnum { fill: #14240a; font: 900 20px Inter, sans-serif; text-anchor: middle; }
.power-cycle .pcy-lab { fill: #fff; font: 800 20px Inter, sans-serif; text-anchor: middle; }
.power-cycle .pcy-center { fill: var(--muted); font: 800 15px Inter, sans-serif; text-anchor: middle; letter-spacing: 0.14em; text-transform: uppercase; }

/* full-width green callout note */
.cycle-note { width: 100%; max-width: 1000px; align-self: center; background: rgba(168,198,62,0.08); border: 1px solid rgba(168,198,62,0.4); border-left: 4px solid var(--green); border-radius: 12px; padding: 15px 22px; font-size: 18px; line-height: 1.4; color: var(--soft); }
.cycle-note b { color: #fff; }

/* paragraph text inside a card */
.card-p { font-size: 19px; line-height: 1.46; color: var(--soft); margin: 0; }
.card-p b { color: #fff; }

/* instructor bio card — narrower + taller */
.concept-card.bio { max-width: 720px; align-self: flex-start; padding: 30px 36px 34px; }
.concept-card.bio .cc-bullets li { margin-bottom: 22px; font-size: 22px; }
.concept-card.bio .cc-bullets li:last-child { margin-bottom: 0; }

/* app-download tile (Bluebook) */
.app-card { text-align: center; justify-content: center; }
.app-icon { width: 112px; height: 112px; border-radius: 26px; background: linear-gradient(160deg, #3d7be0, #1a3a8f); display: flex; align-items: center; justify-content: center; margin: 4px auto 16px; box-shadow: 0 14px 30px rgba(0,0,0,0.42); }
.app-icon svg { width: 60px; height: 60px; fill: #fff; }
.app-img { width: 118px; height: auto; display: block; margin: 2px auto 16px; filter: drop-shadow(0 14px 30px rgba(0,0,0,0.42)); }
/* spot-illustration scene (e.g. student taking a test) */
.scene-img { max-height: 222px; width: auto; display: block; margin: 0 auto; filter: drop-shadow(0 16px 30px rgba(0,0,0,0.4)); }

/* subject-header icon (inline, before a .wsm-h label) */
.wsm-h .hicon { display: inline-block; vertical-align: -5px; margin-right: 9px; }
.wsm-h .hicon svg { width: 23px; height: 23px; stroke: var(--teal); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* "concepts to review" checklist */
.review-list { list-style: none; padding: 0; margin: 6px 0 0; }
.review-list li { display: flex; align-items: center; gap: 13px; padding: 10px 0; font-size: 20px; font-weight: 600; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.08); }
.review-list li:last-child { border-bottom: none; }
.review-list .box { width: 21px; height: 21px; border-radius: 6px; border: 2px solid var(--green); background: rgba(168,198,62,0.12); flex: 0 0 auto; }

/* flag row (which questions to review) */
.flag-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; }
.flag-row .flag-lead { font-size: 18px; color: var(--soft); font-weight: 600; }

/* method cards (Step 3 — training methods with illustrations) */
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; width: 100%; max-width: 1000px; align-self: center; }
.method-card { background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 18px; padding: 20px 20px 22px; text-align: center; }
.method-card.feat { border: 2px solid var(--green); box-shadow: 0 0 22px rgba(168,198,62,0.22); }
.method-img { width: 100%; height: 168px; object-fit: contain; display: block; margin: 0 auto 14px; }
.method-title { font-size: 23px; font-weight: 800; color: #fff; }
.method-sub { font-size: 16px; color: var(--muted); margin-top: 5px; }

/* 2x2 "ways to study" cards (image left, pros/cons right) */
.ways-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; width: 100%; max-width: 1010px; align-self: center; }
.way-card { background: #12293b; border: 1px solid rgba(255,255,255,0.09); border-radius: 16px; padding: 22px 26px 22px 20px; display: flex; align-items: center; gap: 20px; }
.way-card.feat { border: 2px solid var(--green); box-shadow: 0 0 22px rgba(168,198,62,0.22); }
.way-img { width: 144px; height: 124px; object-fit: contain; flex: 0 0 auto; }
.way-body { flex: 1; }
.way-head { display: flex; align-items: baseline; gap: 11px; margin-bottom: 9px; }
.way-name { font-size: 22px; font-weight: 800; color: #fff; }
.way-cost { font-size: 14px; font-weight: 800; color: var(--muted); letter-spacing: 0.08em; }
.way-line { display: flex; gap: 9px; align-items: flex-start; font-size: 16.5px; line-height: 1.3; margin-bottom: 8px; color: var(--soft); }
.way-line:last-child { margin-bottom: 0; }
.way-line .ic { flex: 0 0 auto; font-weight: 900; }
.way-line.pro .ic { color: var(--green); }
.way-line.con .ic { color: var(--red); }
.app-name { font-size: 30px; font-weight: 900; color: #fff; }
.app-by { font-size: 16.5px; color: var(--muted); margin-top: 5px; }
.dl-row { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin: 20px 0 0; }
.dl-chip { padding: 7px 15px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2); font-size: 15px; font-weight: 600; color: var(--soft); }
.dl-url { margin-top: 16px; font-size: 18px; font-weight: 800; color: var(--green); }

/* ============ Roadmap (14-week series list) =============================== */
.roadmap { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 44px; margin-top: 16px; }
.rm-item { display: flex; align-items: baseline; gap: 16px; padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,0.07); font-size: 21px; }
.rm-item .rm-wk { font-weight: 800; color: var(--green); min-width: 100px; letter-spacing: 0.01em; flex: 0 0 auto; }
.rm-item .rm-top { color: var(--soft); }
.rm-item.now .rm-top { color: #fff; font-weight: 700; }
.rm-item.now .rm-top .today { color: var(--green); font-weight: 800; }

/* =====================================================================
   WORKSHOP-DECK INTERACTION COMPONENTS  (promoted from 03-reading, the
   gold-standard verbal deck). Documented in docs/workshop-deck-playbook.md.
   Use these classes so every deck gets identical show-don't-tell behavior
   without a per-deck <style> block.
   ===================================================================== */

/* --- Worked-example answer rows: stay visible as a neutral choice, then
   recolor to match (green) / trap (red) / secondary-trap (amber) on the
   click that adds `.visible`. Wrap each row in `.tp-choice.fragment`, put a
   `.tp-tag` label inside, and add `.tp-red` / `.tp-green` / `.tp-amber`.
   Multi-click choreography: passage+question (idx1) -> choices shown
   neutral (idx2) -> recolor rows (idx3). --- */
.reveal .slides .tp-choice.fragment { opacity: 1 !important; visibility: visible !important; }
.reveal .slides .tp-choice { transition: background .25s ease, border-color .25s ease; }
.reveal .slides .tp-choice .tp-tag { opacity: 0; transition: opacity .2s ease; }
.reveal .slides .tp-choice.visible .tp-tag { opacity: 1; }
.reveal .slides .tp-choice.tp-red.visible { background: #3a2a2e !important; border-color: #e06666 !important; }
.reveal .slides .tp-choice.tp-red.visible .tp-badge { background: #e06666 !important; color: #2a1518 !important; }
.reveal .slides .tp-choice.tp-green.visible { background: #26402c !important; border-color: var(--green) !important; }
.reveal .slides .tp-choice.tp-green.visible .tp-badge { background: var(--green) !important; color: #16203f !important; }
.reveal .slides .tp-choice.tp-amber.visible { background: #3a3320 !important; border-color: #e7c24a !important; }
.reveal .slides .tp-choice.tp-amber.visible .tp-badge { background: #e7c24a !important; color: #2a2410 !important; }

/* --- Concept "recipe" cards: an icon (memorable image) + name + mechanism
   + one-line cue. NEVER ship a card that is just a title + blurb: give it an
   icon and, on its own practice slide, a worked example. `.bait-card.mini`
   is the compact version reused as a reminder on each practice slide. --- */
.reveal .slides .bait-card { display: flex; align-items: center; gap: 24px; padding: 30px 30px;
  background: linear-gradient(180deg, #17394a, #10283a); border: 1.5px solid rgba(71,182,201,0.28);
  border-radius: 20px; box-shadow: 0 12px 28px rgba(0,0,0,0.22); }
.reveal .slides .bait-icon { flex: 0 0 112px; width: 112px; height: 112px; display: flex; align-items: center;
  justify-content: center; border-radius: 50%;
  background: radial-gradient(circle, rgba(71,182,201,0.20), rgba(71,182,201,0) 70%); }
.reveal .slides .bait-icon img { width: 98px; height: 98px; object-fit: contain; }
.reveal .slides .bait-text { flex: 1; min-width: 0; }
.reveal .slides .bait-name { color: var(--cyan, #47b6c9); font-weight: 800; font-size: 25px; margin-bottom: 9px; }
.reveal .slides .bait-mech { color: #eaf1f5; font-size: 20px; line-height: 1.32; margin-bottom: 10px; }
.reveal .slides .bait-cue { color: #e7c24a; font-weight: 700; font-size: 17px; }
.reveal .slides .bait-card.mini { padding: 18px 20px; gap: 18px; box-shadow: 0 8px 20px rgba(0,0,0,0.20); }
.reveal .slides .bait-card.mini .bait-icon { flex: 0 0 84px; width: 84px; height: 84px; }
.reveal .slides .bait-card.mini .bait-icon img { width: 72px; height: 72px; }
.reveal .slides .bait-card.mini .bait-name { font-size: 21px; margin-bottom: 5px; }
.reveal .slides .bait-card.mini .bait-mech { font-size: 16px; line-height: 1.25; margin-bottom: 5px; }
.reveal .slides .bait-card.mini .bait-cue { font-size: 14px; }

/* --- A thinking-student avatar that sits top-right of a practice slide,
   looking down at the problem below. Pair with a concept card top-left. --- */
.reveal .slides .pc-avatar-cell { display: flex; align-items: flex-end; justify-content: center; }
.reveal .slides .pc-avatar-cell img { height: 236px; display: block; }

/* --- Method step-cards: stay visible (neutral), highlight green as each
   step is reached. Wrap each in `.step-card.fragment`. --- */
.reveal .slides .step-card.fragment { opacity: 1 !important; visibility: visible !important; transition: background .25s ease, border-color .25s ease; }
.reveal .slides .step-card.fragment.visible { background: #26402c !important; border-color: var(--green) !important; }