/* Robotics & Arduino — shared course and presentation theme.
   Change the tokens below to restyle every lesson page.
   Sections: tokens / base / frame / panels / lesson layouts / diagrams / responsive. */

:root {
  color-scheme: dark;
  --color-bg: #101c20;
  --color-surface: #17272c;
  --color-surface-raised: #203239;
  --color-code: #0c171b;
  --color-text: #e6eeeb;
  --color-muted: #a7b9b6;
  --color-accent: #b99aff;
  --color-primary: #703cf0;
  --color-primary-end: #9745ef;
  --color-on-primary: #ffffff;
  --color-water: #62d2cb;
  --color-lamp: #f3ce79;
  --color-border: #30434a;
  --color-grid: #b5d8d807;
  --color-focus: #d8c7ff;
  --radius-panel: 22px;
  --radius-small: 12px;
  --radius-pill: 999px;
  --shadow-panel: 0 16px 50px #00000024;
  --page-gutter: clamp(20px, 5vw, 90px);
  --font-body: "Segoe UI", Arial, sans-serif;
  --font-code: Consolas, "Courier New", monospace;
}

/* Course landing page. All lessons use this same stylesheet. */
.course-shell { max-width: 1440px; margin: auto; padding: 28px var(--page-gutter) 0; min-height: 100svh; display: flex; flex-direction: column; }
.page-course main { padding: 42px 0 56px; gap: 32px; }
.course-hero { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 32px; }
.course-kicker { color: var(--color-water); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 700; margin: 0 0 20px; }
.page-course h1 { font-size: clamp(50px, 6.8vw, 96px); letter-spacing: -.06em; margin-bottom: 24px; }
.page-course h1 span { display: block; font-size: .61em; line-height: 1.08; margin-top: 16px; }
.course-intro { font-size: clamp(18px, 1.6vw, 23px); color: var(--color-muted); margin: 0; }
.course-robot { width: 100%; max-height: 400px; }
.course-lessons h2 { font-size: 22px; color: var(--color-text); }
.course-lesson-list { list-style: none; padding: 0; }
.course-lesson-list li { padding: 0; }
.course-lesson-card { display: flex; align-items: center; gap: 26px; padding: 28px 32px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); transition: border-color .15s, background-color .15s; }
.course-lesson-card:hover { border-color: var(--color-accent); background: var(--color-surface-raised); color: var(--color-text); }
.course-lesson-number { width: 68px; height: 68px; flex-shrink: 0; display: grid; place-items: center; border-radius: 18px; background: linear-gradient(135deg, var(--color-primary), var(--color-primary-end)); color: var(--color-on-primary); font-family: var(--font-code); font-size: 27px; }
.course-lesson-copy { display: flex; flex: 1; flex-direction: column; gap: 5px; min-width: 0; font-size: 16px; color: var(--color-muted); }
.course-lesson-copy strong { font-size: 28px; color: var(--color-text); }
.course-lesson-label { color: var(--color-accent); text-transform: uppercase; letter-spacing: .14em; font-size: 11px; font-weight: 700; }
.course-lesson-action { display: flex; gap: 18px; align-items: center; color: var(--color-accent); font-size: 16px; font-weight: 600; white-space: nowrap; }
.course-lesson-action > span { font-size: 27px; }
@media (max-width: 700px) {
  .course-hero { grid-template-columns: 1fr; gap: 15px; }
  .course-robot { max-height: 240px; }
  .page-course main { padding-top: 32px; }
  .course-lesson-card { padding: 22px; gap: 18px; flex-wrap: wrap; }
  .course-lesson-action { width: 100%; justify-content: flex-end; }
  .course-lesson-copy { min-width: 160px; }
}

/* Base */
* { box-sizing: border-box; }
body {
  margin: 0;
  background-color: var(--color-bg);
  background-image: linear-gradient(var(--color-grid) 1px, transparent 1px),
                    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--color-text);
  font-family: var(--font-body);
}
::selection { background: var(--color-primary); color: var(--color-on-primary); }
h1 { margin: 0 0 28px; font-size: clamp(38px, 4.3vw, 68px); line-height: 1.1; letter-spacing: -.045em; font-weight: 750; }
h1 span, h2, h3 { color: var(--color-accent); }
h2 { margin: 0 0 20px; font-size: clamp(24px, 2.1vw, 34px); line-height: 1.2; letter-spacing: -.025em; }
h3 { margin: 22px 0 12px; font-size: clamp(20px, 1.8vw, 28px); }
p { line-height: 1.5; }
strong { font-weight: 650; }
ul { margin: 0; padding-left: 1.1em; font-size: clamp(21px, 2.05vw, 33px); line-height: 1.45; font-weight: 500; }
li { padding-left: .25em; margin: 0 0 15px; }
li:last-child { margin-bottom: 0; }
li::marker { color: var(--color-accent); font-size: .85em; }
a { color: var(--color-text); text-decoration: none; }
a:hover { color: var(--color-accent); }
button { font: inherit; cursor: pointer; }
button, footer a {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 11px 19px; border: 1px solid var(--color-border);
  border-radius: var(--radius-pill); background: var(--color-surface); color: var(--color-text);
  font-weight: 600; line-height: 1.2; transition: background-color .15s, border-color .15s;
}
button:hover, footer a:hover { background: var(--color-surface-raised); border-color: var(--color-accent); color: var(--color-text); }
button[hidden] { display: none; }
:is(a, button, pre):focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
button svg { width: 17px; height: 17px; }
img, svg { max-width: 100%; }
figure { margin: 0; }

/* Page frame and navigation */
.slide { min-height: 100svh; display: flex; flex-direction: column; padding: 24px var(--page-gutter) 0; }
header { display: flex; justify-content: space-between; align-items: center; gap: 24px; border-bottom: 1px solid var(--color-border); padding-bottom: 19px; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.brand svg { width: 34px; height: 34px; color: var(--color-accent); }
.edition { padding: 8px 15px; border: 1px solid var(--color-border); border-radius: var(--radius-pill); background: var(--color-surface); color: var(--color-muted); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
main { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: center; padding: 36px 0; }
footer { display: flex; justify-content: space-between; align-items: center; gap: 16px; border-top: 1px solid var(--color-border); padding: 17px 0; font-size: 12px; letter-spacing: .04em; color: var(--color-muted); }
footer a[rel="next"] { border-color: transparent; color: var(--color-on-primary); background: linear-gradient(110deg, var(--color-primary), var(--color-primary-end)); }
footer a[rel="next"]:hover { border-color: var(--color-focus); }
.footer-right, .controls { display: flex; align-items: center; gap: 12px; }
.bottom-rule { height: 3px; margin: 0 calc(-1 * var(--page-gutter)); background: linear-gradient(90deg, var(--color-primary), var(--color-water)); }

/* Shared panels and multi-column lessons */
.comparison, .code-layout, .showcase-layout, .contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 2.5vw, 42px); align-items: stretch; }
.comparison > section, .code-layout > section, .robotics, .contact-layout > section,
.page-list main > ul, .wifi, .reset-note, .type-note {
  border: 1px solid var(--color-border); border-radius: var(--radius-panel);
  background: var(--color-surface); box-shadow: var(--shadow-panel);
}
.comparison > section, .code-layout > section, .robotics, .contact-layout > section { padding: clamp(22px, 2.5vw, 38px); min-width: 0; }
.page-list main > ul { padding: 28px 32px 28px 58px; }
.detail, .explanation, .type-note, .intro { color: var(--color-muted); }
.explanation { font-size: .8em; margin: 10px 0 0; }
.page-first-projects li { margin-bottom: 24px; }
.page-first-projects li:last-child { margin-bottom: 0; }
.page-pwm main > ul { font-size: clamp(18px, 1.5vw, 25px); line-height: 1.45; }
.page-pwm li { margin-bottom: 17px; }
.page-pwm li:last-child { margin-bottom: 0; color: var(--color-water); }

/* Lesson directory */
.page-index main { justify-content: flex-start; padding: 28px 0; }
.index-opening { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; margin: 0 0 24px; font-size: 17px; }
.index-opening li { margin: 0; padding: 0; }
.index-opening a { display: block; padding: 10px 17px; border: 1px solid var(--color-border); border-radius: var(--radius-pill); background: var(--color-surface); }
.index-sections { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.page-lesson-two-index .index-sections { grid-template-columns: 1fr; }
.index-sections section { padding: 24px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); min-width: 0; }
.index-sections h2 { font-size: clamp(23px, 2vw, 31px); margin-bottom: 15px; }
.index-sections ul { list-style: none; padding: 0; font-size: clamp(17px, 1.3vw, 22px); line-height: 1.3; }
.index-sections li { padding: 0; margin: 0; border-bottom: 1px solid var(--color-border); }
.index-sections li:last-child { border-bottom: 0; }
.index-sections a { display: block; padding: 10px 8px; border-radius: var(--radius-small); }
.lesson-directory a:hover { background: var(--color-surface-raised); color: var(--color-accent); }
.lesson-directory a[aria-current="page"], .index-button[aria-current="page"] { color: var(--color-accent); border-color: var(--color-accent); }
@media (max-width: 800px) { .index-sections { grid-template-columns: 1fr; } }

/* Cover and section dividers */
.page-cover main { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3vw; align-items: center; padding: 42px 0; }
.page-cover h1 { font-size: clamp(50px, 5.8vw, 91px); line-height: 1.025; letter-spacing: -.055em; margin: 0; }
.eyebrow { margin: 0 0 28px; display: flex; align-items: center; gap: 13px; font-size: 17px; font-weight: 600; }
.number { color: var(--color-on-primary); background: linear-gradient(110deg, var(--color-primary), var(--color-primary-end)); padding: 9px 13px; border-radius: var(--radius-small); font-size: 14px; }
.subtitle { font-size: clamp(23px, 2vw, 31px); margin: 30px 0 0; }
.subtitle span { color: var(--color-muted); }
.page-cover figure { padding: 18px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); }
.illustration { width: 100%; max-height: 62vh; display: block; }
.page-divider main { padding-left: 3vw; }
.page-divider h1 { font-size: clamp(42px, 6vw, 100px); }
.presenter, .questions { margin: 0; color: var(--color-accent); font-size: clamp(30px, 3.5vw, 54px); font-weight: 600; }
.page-agenda .contact-layout ul { font-size: clamp(21px, 1.9vw, 30px); }
.page-agenda .contact-layout li { margin-bottom: 18px; }
.page-recap h1 { font-size: clamp(38px, 4.3vw, 68px); }
.recap-points { margin-bottom: 30px; font-size: clamp(20px, 1.9vw, 30px); }
.recap-points strong { color: var(--color-accent); }
.page-recap .questions { font-size: clamp(26px, 2.5vw, 38px); }

/* Showcase and Arduino comparison */
.showcase-layout { grid-template-columns: .85fr 1.15fr; align-items: start; }
.videos { list-style: none; padding: 0; font-size: clamp(26px, 2.8vw, 43px); }
.videos li { margin: 0 0 16px; padding: 0; }
.videos a { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 23px 28px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.videos a:hover { border-color: var(--color-accent); background: var(--color-surface-raised); }
.videos a span { color: var(--color-accent); font-size: .75em; }
.showcase-note { margin: 14px 4px 0; color: var(--color-muted); font-size: clamp(17px, 1.4vw, 23px); line-height: 1.4; }
.robotics p, .robotics ul { font-size: clamp(20px, 1.65vw, 27px); line-height: 1.5; }
.robotics p { margin: 0 0 14px; }
.comparison { grid-template-columns: .8fr 1.2fr; }
.comparison ul { font-size: clamp(20px, 1.85vw, 29px); }

/* Code concepts and copyable sketches */
pre { margin: 0; padding: 20px 26px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-code); color: var(--color-text); overflow-x: auto; tab-size: 2; }
code { font-family: var(--font-code); }
.code-layout { grid-template-columns: 1.1fr 1fr; }
.code-layout ul { font-size: clamp(19px, 1.55vw, 26px); line-height: 1.4; }
.ideas ul { margin-top: 10px; }
.ideas ul li { margin-bottom: 5px; }
.examples pre { margin: 12px 0 22px; padding: 16px 20px; white-space: pre-wrap; overflow-wrap: anywhere; font-size: clamp(20px, 1.8vw, 28px); line-height: 1.5; border-radius: var(--radius-small); }
.keyword { color: var(--color-accent); font-weight: 700; }
.value { color: var(--color-water); font-weight: 700; }
.type-note { padding: 17px 22px; margin: 20px 0 0; font-size: clamp(16px, 1.3vw, 21px); }
.type-note code { color: var(--color-text); }
.page-sketch main { padding: 22px 0; }
.page-sketch h1 { margin-bottom: 14px; font-size: clamp(36px, 3.8vw, 58px); }
.code-heading { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; margin-bottom: 12px; }
.code-heading p { margin: 0; font-size: clamp(18px, 1.55vw, 25px); }
#copy-code { font-size: 14px; }
#copy-status { color: var(--color-muted); font-size: 14px; }
.page-sketch code { font-size: clamp(13px, 1.1vw, 19px); line-height: 1.45; }
.finish { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; margin-top: 18px; }
.finish p { margin: 0; font-size: clamp(18px, 1.6vw, 26px); }
.steps span { color: var(--color-accent); padding: 0 8px; }
.congrats { color: var(--color-water); font-weight: 700; }

/* IDE installation and annotated screenshot */
.wifi { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 32px; padding: 20px 24px; margin: 0 0 28px; font-size: clamp(18px, 1.65vw, 25px); }
.wifi > strong { color: var(--color-accent); }
.password { font-family: var(--font-code); font-variant-numeric: tabular-nums; }
.page-install ul { font-size: clamp(20px, 1.9vw, 30px); }
.page-install li { margin-bottom: 20px; }
.download-link { text-decoration: underline; text-underline-offset: 5px; text-decoration-color: var(--color-accent); overflow-wrap: anywhere; }
.install-steps { margin: 14px 0 8px; font-weight: 650; font-size: .9em; line-height: 1.6; }
.page-ide main { padding: 24px 0 12px; }
.page-ide h1 { margin-bottom: 12px; font-size: clamp(36px, 3.8vw, 58px); }
.intro { margin: 0 0 18px; font-size: clamp(18px, 1.65vw, 26px); line-height: 1.4; }
.intro strong { color: var(--color-text); }
.ide-map { display: block; width: 100%; max-height: 65vh; margin: auto; overflow: visible; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-panel); padding: 12px; }
.leaders { fill: none; stroke: var(--color-accent); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.targets { fill: none; stroke: var(--color-accent); stroke-width: 3; }
.ide-map .labels { fill: var(--color-text); font: 30px var(--font-body); }
.label-title { fill: var(--color-accent); font-weight: 700; font-size: 35px; }

/* First contact */
.contact-layout { gap: 24px; }
.contact-layout ul, .pin-groups, .pin-note, .reset-note p { font-size: clamp(18px, 1.55vw, 25px); line-height: 1.4; }
.contact-layout li { margin-bottom: 10px; padding-left: .15em; }
.detail { font-size: .88em; }
.pin-groups { margin: 0; font-weight: 650; }
.pin-groups span { color: var(--color-accent); padding: 0 8px; }
.pin-note { margin: 9px 0 0; }
.connect li { margin-bottom: 17px; }
.reset-note { background: var(--color-surface-raised); padding: 17px 21px; margin-top: 24px; box-shadow: none; border-radius: var(--radius-small); }
.reset-note h3 { margin: 0 0 10px; }
.reset-note p { margin: 7px 0 0; }

/* Signal levels and the water-cup analogy */
.page-signals main { padding: 24px 0; }
.page-signals h1 { margin-bottom: 14px; font-size: clamp(36px, 3.7vw, 58px); }
.signal-takeaway { margin: 0 0 22px; color: var(--color-accent); font-size: clamp(19px, 1.7vw, 27px); }
.signal-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(22px, 3vw, 44px); align-items: start; }
.signal-picture, .signal-explanation { min-width: 0; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); overflow: hidden; }
.signal-picture img { display: block; width: 100%; height: auto; }
.signal-picture figcaption { padding: 15px 20px; color: var(--color-muted); font-size: clamp(14px, 1.15vw, 18px); line-height: 1.5; }
.signal-explanation { padding: clamp(20px, 2vw, 30px); }
.signal-explanation h2 { font-size: clamp(23px, 2vw, 31px); margin-bottom: 14px; }
.signal-explanation ul { font-size: clamp(17px, 1.35vw, 23px); line-height: 1.4; }
.signal-explanation li { margin-bottom: 9px; }
.signal-explanation h3 { margin: 17px 0 8px; font-size: clamp(20px, 1.6vw, 26px); }
.signal-ranges { width: 100%; border-collapse: collapse; font-size: clamp(14px, 1.15vw, 19px); line-height: 1.4; }
.signal-ranges caption { color: var(--color-muted); text-align: left; padding-bottom: 8px; font-size: .9em; }
.signal-ranges th, .signal-ranges td { text-align: left; padding: 9px 7px; border-bottom: 1px solid var(--color-border); }
.signal-ranges th { color: var(--color-muted); font-weight: 600; }
.signal-ranges strong { color: var(--color-water); }
.signal-detail { color: var(--color-muted); font-size: clamp(14px, 1.15vw, 18px); margin: 10px 0 0; }
.signal-analog { margin: 0; font-size: clamp(17px, 1.4vw, 23px); }
.signal-blink { margin: 20px 0 0; padding: 17px 22px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-small); font-size: clamp(17px, 1.45vw, 23px); }
@media (max-width: 900px) { .signal-layout { grid-template-columns: 1fr; } .signal-picture { max-width: 675px; margin-inline: auto; } }

/* External LED lesson */
.page-external-led h1 { font-size: clamp(34px, 3.7vw, 58px); }
.page-external-led section > p { margin: 0 0 15px; font-size: clamp(18px, 1.55vw, 25px); line-height: 1.4; }
.page-external-led section > p.detail { font-size: clamp(15px, 1.2vw, 20px); color: var(--color-muted); }
.page-external-led pre { margin-bottom: 14px; padding: 16px 20px; border-radius: var(--radius-small); font-size: clamp(17px, 1.45vw, 23px); }
.led-polarity { margin: 18px 0; padding: 12px; border: 1px solid var(--color-border); border-radius: var(--radius-small); background: var(--color-code); }
.led-polarity svg { display: block; width: 100%; height: auto; max-height: 240px; }
.led-polarity figcaption { text-align: center; padding: 4px 6px 6px; font-size: clamp(15px, 1.2vw, 20px); line-height: 1.4; }
.led-polarity figcaption strong { color: var(--color-accent); }
.wiring-path { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 18px; margin-bottom: 16px; border: 1px solid var(--color-border); border-radius: var(--radius-small); background: var(--color-code); font-size: clamp(17px, 1.4vw, 23px); line-height: 1.5; }
.wiring-path b { color: var(--color-accent); }
.return-path { flex-basis: 100%; }

/* Water and circuit diagrams: preserve alignment of all layers. */
.page-diagram .slide { height: 100svh; min-height: 640px; }
.page-diagram main { min-height: 0; display: grid; grid-template-rows: auto auto minmax(0, 1fr); padding: 20px 0; }
.page-diagram h1 { font-size: clamp(32px, 3.5vw, 52px); margin-bottom: 8px; }
.page-diagram ul { font-size: clamp(18px, 1.7vw, 25px); margin: 0 0 14px; }
.page-diagram li { margin: 0; }
.page-diagram strong { color: var(--color-accent); }
.diagram { position: relative; min-height: 0; margin: 0; overflow: hidden; border-radius: var(--radius-panel); background: var(--color-surface); box-shadow: var(--shadow-panel); }
.diagram img, .diagram > svg { width: 100%; height: 100%; object-fit: contain; display: block; }
.diagram .labels, .diagram .wheel-overlay { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
.wheel-rotor { transform-origin: 803px 182px; animation: wheel-turn 3s linear infinite; }
.diagram.paused .wheel-rotor, .paused .current { animation-play-state: paused; }
.current { stroke-dasharray: 2 94; animation: circuit-flow 1s linear infinite; }
@keyframes wheel-turn { to { transform: rotate(-360deg); } }
@keyframes circuit-flow { to { stroke-dashoffset: -96; } }

/* Responsive and presentation accessibility */
@media (min-width: 1800px) {
  .slide { max-width: 1900px; margin-inline: auto; }
}
@media (max-width: 900px) {
  .comparison, .code-layout, .showcase-layout, .contact-layout { grid-template-columns: 1fr; gap: 24px; }
  .page-cover main { grid-template-columns: 1fr; gap: 28px; }
  .page-cover h1 { font-size: clamp(48px, 9vw, 76px); }
  .illustration { max-height: 350px; }
}
@media (max-width: 700px) {
  .slide { padding-top: 20px; }
  .brand { font-size: 10px; letter-spacing: .06em; }
  .brand svg { width: 26px; height: 26px; flex-shrink: 0; }
  .edition { font-size: 9px; padding: 7px 10px; text-align: center; }
  header { gap: 12px; }
  main { padding: 28px 0; }
  footer { flex-wrap: wrap; gap: 10px; font-size: 11px; }
  footer a, footer button { padding: 10px 13px; }
  .footer-right, .controls { gap: 6px; }
  .page-cover footer > span { flex-basis: 100%; }
  .page-cover .footer-right { width: 100%; justify-content: space-between; }
  .page-list main > ul { padding: 23px 22px 23px 43px; }
  .wifi { align-items: flex-start; flex-direction: column; gap: 10px; }
  .page-ide main { overflow-x: auto; }
  .ide-map { min-width: 900px; max-height: none; }
  pre { padding: 16px; }
  .finish { line-height: 1.6; }
  .page-diagram .slide { height: auto; min-height: 100svh; }
  .page-diagram main { display: flex; padding: 28px 0; }
  .diagram { margin-top: 12px; }
  .diagram > img:not(.labels), .diagram > svg:not(.labels):not(.wheel-overlay) { height: auto; }
}
@media (prefers-reduced-motion: reduce) {
  button, footer a { transition: none; }
  .wheel-rotor, .current { animation-play-state: paused; }
  .diagram.playing .wheel-rotor, .playing .current { animation-play-state: running; }
}
@media print {
  @page { size: landscape; margin: 0; }
  body { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  footer, #copy-code, #copy-status { display: none; }
}

/* Lesson recap: individually revealed answers and a shared hint. */
.page-recall .eyebrow { color: var(--color-muted); margin-bottom: 18px; }
.recall-question { color: var(--color-text); max-width: 1000px; margin-bottom: 32px; }
.recall-answers { display: grid; gap: 18px; }
.recall-row { display: flex; align-items: center; gap: 22px; padding: 24px 28px; min-height: 115px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.recall-number { color: var(--color-muted); font: 22px var(--font-code); }
.recall-answer { flex: 1; margin: 0; font-size: clamp(20px, 2vw, 30px); }
.recall-answer strong { color: var(--color-accent); }
.recall-row button { min-width: 85px; flex-shrink: 0; }
.recall-hint { margin-top: 22px; }
@media (max-width: 700px) { .recall-row { gap: 12px; padding: 18px; } }

/* Code reveal: questions remain visible while code is revealed in steps. */
.code-reveal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.code-reveal-column { display: grid; gap: 20px; }
.code-reveal-section { min-width: 0; padding: 24px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.code-reveal-section h2 { margin-bottom: 16px; font-size: clamp(18px, 1.7vw, 25px); }
.code-reveal-section h2 code { font-family: var(--font-code); }
.code-reveal-prompt { display: flex; align-items: center; gap: 18px; margin-bottom: 14px; }
.code-reveal-prompt p { flex: 1; margin: 0; font-size: clamp(18px, 1.5vw, 23px); }
.code-reveal-prompt button { min-width: 78px; flex-shrink: 0; }
.code-reveal-part + .code-reveal-part { margin-top: 24px; }
.code-reveal-section pre { padding: 16px; font-size: clamp(14px, 1.15vw, 19px); line-height: 1.5; }
.code-reveal-section pre[hidden] { display: none; }
.code-reveal-section .code-reveal-wrapper { border: 0; padding: 8px 0 18px; background: transparent; }
.code-reveal-section .code-reveal-wrapper:last-child { padding: 18px 0 0; }
@media (max-width: 1000px) { .code-reveal-grid { grid-template-columns: 1fr; } }

.page-ldr-questions .subtitle { margin: 0 0 28px; }
.page-ldr-questions .recall-row { padding: 0; border: 0; border-radius: 0; box-shadow: none; align-items: start; }
.page-ldr-questions .recall-answer { font-size: clamp(20px, 1.7vw, 27px); }

/* Theory questions and their short takeaway. */
.theory-reference { text-decoration: underline; text-underline-offset: 4px; color: var(--color-accent); }
.theory-conclusion { font-size: clamp(20px, 1.7vw, 27px); margin: 24px 0 0; }
.theory-conclusion > strong { color: var(--color-accent); }
.theory-footnote { font-size: clamp(15px, 1.15vw, 19px); color: var(--color-muted); margin: 26px 0 0; }

.page-pin-theory .recall-row { padding: 14px 0 0; border: 0; border-radius: 0; align-items: start; }
.page-pin-theory .recall-answer { font-size: clamp(19px, 1.6vw, 25px); }
.page-pin-theory .comparison ul { font-size: clamp(19px, 1.6vw, 25px); }

/* Input measurement: keep reference photos side by side on classroom screens. */
.page-voltmeter h1 { font-size: clamp(34px, 3.5vw, 54px); margin-bottom: 22px; }
.voltmeter-points { font-size: clamp(18px, 1.55vw, 25px); }
.voltmeter-points li { margin-bottom: 8px; }
.meter-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 26px 0; }
.meter-gallery figure { min-width: 0; overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-small); background: var(--color-surface); }
.meter-gallery img { width: 100%; height: 220px; object-fit: contain; display: block; }
.meter-gallery figcaption { padding: 12px 15px; font-size: 15px; line-height: 1.4; color: var(--color-muted); }
.meter-experiment { border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); padding: 22px 26px; }
.meter-experiment h2 { font-size: clamp(23px, 2vw, 30px); margin-bottom: 12px; }
.meter-experiment p { font-size: clamp(18px, 1.45vw, 23px); margin: 10px 0 0; }
@media (max-width: 700px) { .meter-gallery { grid-template-columns: 1fr; } .meter-gallery img { height: auto; } }

.recall-actions { display: flex; gap: 10px; flex-shrink: 0; }
.conclusion-heading { display: flex; align-items: center; gap: 20px; color: var(--color-accent); }
.conclusion-reveal p { margin: 12px 0 0; }
@media (max-width: 1100px) { .page-pin-theory .recall-row { flex-wrap: wrap; } .page-pin-theory .recall-actions { width: 100%; justify-content: flex-end; } }
@media (max-width: 700px) { .recall-row { flex-wrap: wrap; } .recall-actions { margin-left: auto; } }

/* Multiple theory questions, with independent reveals for each answer. */
.theory-questions { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
.theory-questions > section { min-width: 0; padding: 24px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.theory-questions h2 { font-size: clamp(22px, 1.8vw, 29px); margin-bottom: 16px; }
.theory-questions .recall-row { min-height: 82px; padding: 12px 0; gap: 14px; border: 0; border-radius: 0; }
.theory-questions .recall-row + .recall-row { border-top: 1px solid var(--color-border); }
.theory-questions .recall-answer { font-size: clamp(18px, 1.5vw, 24px); }
.theory-questions .theory-footnote { margin-top: 14px; }
@media (max-width: 1100px) { .theory-questions .recall-row { flex-wrap: wrap; } .theory-questions .recall-actions { margin-left: auto; } }
@media (max-width: 800px) { .theory-questions { grid-template-columns: 1fr; } }

/* First LDR activity: a vertical introduction after the recap. */
.page-ldr-intro h1 { margin-bottom: 16px; }
.page-ldr-intro .ldr-opening { margin: 0 0 24px; font-size: clamp(23px, 2vw, 31px); color: var(--color-muted); }
.page-ldr-intro .theory-questions { gap: 20px; }
.page-ldr-intro .theory-questions p,
.page-ldr-intro .theory-questions ul { font-size: clamp(19px, 1.6vw, 25px); line-height: 1.45; }
.page-ldr-intro .theory-questions p { margin: 0 0 14px; }
.page-ldr-intro .theory-questions ul { margin-bottom: 18px; }
.page-ldr-intro .theory-questions li { margin-bottom: 5px; }
.page-ldr-intro .theory-questions .ldr-takeaway { margin-bottom: 0; }
.page-ldr-intro .theory-questions strong { color: var(--color-accent); }

/* LDR sketch: one control reveals the numbered fragments in order. */
.page-ldr-cascade main { justify-content: flex-start; }
.page-ldr-cascade h1 { margin-bottom: 16px; }
.page-ldr-cascade .cascade-wiring { margin: 0 0 28px; font-size: clamp(21px, 1.9vw, 29px); }
.page-ldr-cascade .cascade-wiring strong { color: var(--color-water); }
.page-ldr-cascade h2 { margin-bottom: 8px; }
.page-ldr-cascade .cascade-no-copy { margin: 0 0 22px; color: var(--color-muted); font-size: clamp(17px, 1.4vw, 21px); }
.page-ldr-cascade .cascade-toolbar { position: sticky; top: 12px; z-index: 2; display: flex; align-items: center; gap: 20px; padding: 12px 16px; margin-bottom: 16px; border: 1px solid var(--color-border); border-radius: var(--radius-small); background: var(--color-surface-raised); box-shadow: var(--shadow-panel); }
.page-ldr-cascade #show-next { min-width: 108px; background: var(--color-primary); color: var(--color-on-primary); }
.page-ldr-cascade #reveal-progress { color: var(--color-muted); font-size: 15px; font-variant-numeric: tabular-nums; }
.page-ldr-cascade .cascade-sketch { padding: clamp(16px, 2.2vw, 32px); font-size: clamp(16px, 1.5vw, 24px); line-height: 1.65; white-space: normal; }
.page-ldr-cascade .cascade-line { display: block; white-space: pre; min-height: 1.65em; scroll-margin-top: 110px; }
.page-ldr-cascade .cascade-gap { margin-top: 1em; }
.page-ldr-cascade .cascade-block { color: var(--color-accent); font-weight: 700; }
.page-ldr-cascade .cascade-comment { color: var(--color-muted); }
.page-ldr-cascade .just-revealed { background: #62d2cb20; color: var(--color-water); border-radius: 3px; }
.page-ldr-cascade [hidden] { display: none !important; }
@media (max-width: 600px) {
  .page-ldr-cascade .cascade-toolbar { gap: 12px; padding: 10px; }
  .page-ldr-cascade .cascade-sketch { font-size: 14px; }
}

/* LDR experiment: complete sketch, observation, then the next connection. */
.page-ldr-experiment main { justify-content: flex-start; gap: 28px; }
.page-ldr-experiment h1 { margin-bottom: 0; }
.page-ldr-experiment .experiment-instruction { margin: 0; font-size: clamp(21px, 1.8vw, 28px); }
.page-ldr-experiment pre { font-size: clamp(16px, 1.35vw, 22px); line-height: 1.5; }
.page-ldr-experiment .experiment-question h2 { margin-bottom: 18px; }
.page-ldr-experiment .experiment-reconnect { padding: 24px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.page-ldr-experiment .experiment-path { font: clamp(23px, 2.2vw, 34px)/1.5 var(--font-code); color: var(--color-water); margin: 0 0 18px; }

/* Second failed LDR experiment: pause on the question. */
.page-ldr-fail-two .subtitle { margin: 0 0 32px; }
.page-ldr-fail-two .subtitle strong { color: var(--color-water); }
.page-ldr-fail-two h2 { margin-bottom: 18px; }

/* Syringe analogy: independently reveal voltage and current explanations. */
.page-water-voltage-current .water-part-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.page-water-voltage-current .water-part-heading h2 { margin: 0; }
.page-water-voltage-current .water-part-heading button { flex-shrink: 0; }
.page-water-voltage-current .water-explanation { margin-top: 22px; font-size: clamp(20px, 1.7vw, 27px); }
.page-water-voltage-current .water-explanation p { margin: 0 0 18px; }
.page-water-voltage-current .water-explanation .water-takeaway { margin-bottom: 0; }
.page-water-voltage-current .water-explanation strong { color: var(--color-water); }

/* Resistor analogy: keep the supplied diagram whole and readable. */
.page-resistors-water h1 { margin-bottom: 18px; }
.page-resistors-water .resistor-intro { font-size: clamp(21px, 1.8vw, 28px); margin: 0 0 24px; }
.page-resistors-water .resistor-intro strong { color: var(--color-accent); }
.page-resistors-water .resistor-diagram { overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.page-resistors-water .resistor-diagram img { display: block; width: 100%; height: auto; max-height: 65vh; object-fit: contain; }

/* Pressure before and after the tap, with a hidden explanation. */
.page-tap-pressure .tap-question { font-size: clamp(23px, 2vw, 31px); margin: 0 0 18px; }
.page-tap-pressure .tap-lead { font-size: clamp(19px, 1.6vw, 25px); margin: 0 0 24px; }
.page-tap-pressure .theory-questions p,
.page-tap-pressure .tap-reveal p { font-size: clamp(20px, 1.7vw, 27px); margin: 0; }
.page-tap-pressure .tap-reveal { margin-top: 26px; }
.page-tap-pressure .conclusion-heading h2 { margin: 0; }
.page-tap-pressure #tap-explanation p { margin-top: 18px; }
.page-tap-pressure #tap-explanation strong { color: var(--color-water); }

/* Fixing the flow: cue answer plus three independently hidden explanations. */
.page-pipe-fix .pipe-fix-parts { margin-top: 24px; }
.page-pipe-fix .pipe-fix-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.page-pipe-fix .pipe-fix-heading h2 { margin: 0; }
.page-pipe-fix .pipe-fix-heading button { flex-shrink: 0; }
.page-pipe-fix .pipe-fix-answer { margin-top: 22px; }
.page-pipe-fix .pipe-fix-answer p { font-size: clamp(20px, 1.7vw, 27px); margin: 0 0 18px; }
.page-pipe-fix .pipe-fix-answer p:last-child { margin-bottom: 0; }
.page-pipe-fix .pipe-fix-answer strong { color: var(--color-water); }
.page-pipe-fix .pipe-screw-demo { margin: 28px 0 0; }
.page-pipe-fix .pipe-screw-demo img { display: block; width: 100%; height: auto; border-radius: var(--radius-panel); }
.page-pipe-fix .pipe-screw-demo figcaption { margin-top: 14px; }

/* Requested corrections to the earlier recap pages. */
.page-pin-theory .comparison { grid-template-columns: 1fr; }
.page-tap-pressure .tap-block-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.page-tap-pressure .tap-block-heading h2 { margin: 0; }
.page-tap-pressure .theory-questions p { margin-top: 18px; }

/* Divider, recap, materials, and potentiometer lesson pages. */
.page-lesson-content main { justify-content: flex-start; gap: 24px; }
.page-lesson-content h1 { margin: 0 0 4px; }
.page-lesson-content .lesson-lead { font-size: clamp(22px, 1.9vw, 30px); margin: 0; }
.lesson-card { padding: 24px; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.lesson-card p { font-size: clamp(20px, 1.6vw, 26px); margin: 0 0 18px; }
.lesson-card p:last-child { margin-bottom: 0; }
.lesson-points { font-size: clamp(20px, 1.6vw, 26px); }
.page-lesson-content strong { color: var(--color-water); }
.page-lesson-content .lesson-note { font-size: clamp(15px, 1.15vw, 18px); color: var(--color-muted); margin: 16px 0 0; }
.page-lesson-content .lesson-wiring { font: clamp(18px, 1.7vw, 26px)/1.5 var(--font-code); overflow-wrap: anywhere; }
.lesson-reveal-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.lesson-reveal-heading h2 { margin: 0; }
.lesson-reveal-heading button { flex-shrink: 0; }
.lesson-reveal-content { margin-top: 22px; }
.page-lesson-content [hidden] { display: none !important; }
.divider-art { border: 1px solid var(--color-border); border-radius: var(--radius-panel); overflow: hidden; background: var(--color-surface); }
.divider-art img { display: block; width: 100%; height: auto; max-height: 75vh; object-fit: contain; }
.divider-art figcaption { padding: 16px 22px; font-size: clamp(17px, 1.3vw, 22px); line-height: 1.5; }
.divider-animation { display: block; width: 100%; height: auto; margin: 22px 0 16px; border-radius: var(--radius-small); }
.lesson-celebrate { font-size: clamp(36px, 4vw, 62px); color: var(--color-water); font-weight: 750; margin: 8px 0; }
.lesson-table-wrap { overflow-x: auto; }
.lesson-table { width: 100%; border-collapse: collapse; font-size: clamp(16px, 1.2vw, 21px); line-height: 1.5; }
.lesson-table th, .lesson-table td { text-align: left; padding: 16px; border-bottom: 1px solid var(--color-border); vertical-align: top; min-width: 180px; }
.lesson-table thead th { color: var(--color-accent); }
.lesson-activity { border-color: var(--color-accent); }
.pot-demo svg { display: block; width: 100%; max-width: 850px; margin: 0 auto; }
.pot-demo label { display: block; font-size: 20px; margin-top: 12px; }
.pot-demo input[type="range"] { width: min(100%, 700px); display: block; accent-color: var(--color-water); margin: 18px 0; }
.pot-demo output { display: block; font: 26px var(--font-code); color: var(--color-water); }
@media (max-width: 600px) { .lesson-reveal-heading { flex-wrap: wrap; } .lesson-card { padding: 18px; } }

/* A poetry break: gentle water motion and four unaltered ABAB stanzas. */
.page-poetry .poetry-kicker { margin: 0; color: var(--color-muted); font-size: 18px; }
.page-poetry .poetry-waterfall { overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-panel); background: var(--color-surface); }
.page-poetry .poetry-waterfall img { display: block; width: 100%; height: auto; }
.page-poetry .poetry-waterfall figcaption { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding: 16px 22px; color: var(--color-muted); font-size: 17px; }
.page-poetry .poetry-reading h2 { font-size: clamp(21px, 1.8vw, 28px); }
.page-poetry blockquote { margin: 0; padding: 4px 0 4px clamp(18px, 2.5vw, 36px); border-left: 3px solid var(--color-accent); }
.page-poetry blockquote p { font-family: Georgia, 'Times New Roman', serif; font-size: clamp(20px, 2vw, 30px); line-height: 1.65; margin: 0 0 26px; }
.page-poetry blockquote p:last-child { margin-bottom: 0; }
.page-poetry .poetry-meaning h2 { font-size: clamp(24px, 2vw, 32px); }

/* Potentiometer answer reveals. */
.page-diy-answers pre { font-size: clamp(15px, 1.35vw, 22px); line-height: 1.55; }
.page-diy-answers .answer-circuit { display: block; width: 100%; height: auto; margin: 22px 0; border-radius: var(--radius-panel); }
.page-diy-answers .answers-finish { margin: 28px 0 14px; font-size: clamp(32px, 3.5vw, 56px); line-height: 1.2; color: var(--color-water); }

/* Interactive H-bridge lesson. */

    #hb-switch-demo .hb-scene { position: relative; }
    #hb-switch-demo .hb-art { position: relative; }
    #hb-switch-demo .hb-picture { display: block; width: 100%; height: auto; }
    #hb-switch-demo .hb-overlay { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
    #hb-switch-demo .hb-anchor { position: absolute; transform: translate(-50%, -50%); }
    #hb-switch-demo .hb-s1 { left: 17.4%; top: 28.3%; }
    #hb-switch-demo .hb-s2 { left: 82.6%; top: 28.3%; }
    #hb-switch-demo .hb-s3 { left: 17.4%; top: 65.9%; }
    #hb-switch-demo .hb-s4 { left: 82.6%; top: 65.9%; }
    #hb-switch-demo .hb-trace { fill: none; stroke: var(--color-water); stroke-width: 12; stroke-linecap: round; opacity: .75; }
    #hb-switch-demo .hb-short { stroke: var(--color-danger); }
    #hb-switch-demo .hb-brake { stroke: var(--color-lamp); stroke-dasharray: 18 14; }
    #hb-switch-demo .hb-particle { fill: var(--color-water); stroke: var(--color-bg); stroke-width: 2; }
    #hb-switch-demo .hb-particle.hb-short { fill: var(--color-danger); stroke: var(--color-bg); }
    #hb-switch-demo .hb-arrow { fill: none; stroke: var(--color-text); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; }
    #hb-switch-demo .hb-arrow-back { fill: none; stroke: var(--color-bg); stroke-width: 13; stroke-linecap: round; stroke-linejoin: round; }
    #hb-switch-demo .hb-status { margin-block: 12px 4px; }
    #hb-switch-demo [hidden] { display: none !important; }
    @media (max-width: 760px) {
      #hb-switch-demo .hb-switch-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
      #hb-switch-demo .hb-anchor { position: static; transform: none; }
    }
  
#hb-switch-demo { --color-danger: #ff8a88; width: 100%; }
#hb-switch-demo .hb-picture { border-radius: var(--radius-panel); }
#hb-switch-demo .hb-anchor button { padding: 8px 12px; min-height: 44px; font-size: clamp(13px, 1.25vw, 20px); }
#hb-switch-demo button[aria-pressed="true"] { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-accent); }
#hb-switch-demo .hb-status { font-size: clamp(18px, 1.6vw, 25px); min-height: 3em; }
#hb-switch-demo .text-destructive { color: var(--color-danger); }
#hb-switch-demo .viz-row { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
#hb-switch-demo .text-small { font-size: clamp(14px, 1.2vw, 18px); color: var(--color-muted); }

/* Conceptual servo feedback loop. */
.page-servo-control pre { font-size: clamp(15px, 1.35vw, 22px); line-height: 1.55; }
.page-servo-code-start pre { font-size: clamp(15px, 1.35vw, 22px); line-height: 1.55; }
.page-servo-basic-test pre { font-size: clamp(15px, 1.35vw, 22px); line-height: 1.55; }
.page-light-following-solution pre { font-size: clamp(15px, 1.35vw, 22px); line-height: 1.55; }
.page-light-following-solution .lesson-card a { color: var(--color-water); text-decoration: underline; text-underline-offset: .18em; }

/* Servo parts illustration. */
.servo-parts-art { align-self: center; width: min(100%, 680px); }
.servo-parts-art img { display: block; width: 100%; height: auto; border-radius: var(--radius-small); }
.servo-parts-art figcaption { margin-top: 14px; color: var(--color-muted); font-size: clamp(16px, 1.3vw, 20px); line-height: 1.5; }

/* Video recap links: one topic per row. */
.page-video-links .resource-channel { color: var(--color-water); text-decoration: underline; text-underline-offset: .2em; }
.page-video-links .resource-list { list-style: none; padding: 0; margin: 0; }
.page-video-links .resource-list li { margin: 0; padding: 0; border-bottom: 1px solid var(--color-border); }
.page-video-links .resource-list a { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; padding: 18px 8px; font-size: clamp(21px, 1.9vw, 29px); }
.page-video-links .resource-list a:hover { background: var(--color-surface); }
.page-video-links .resource-action { color: var(--color-water); font-size: clamp(15px, 1.2vw, 19px); }

/* Optional header-files workshop. */
.page-header-files .header-title-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; }
.page-header-files .header-skip { display: inline-flex; flex-shrink: 0; align-items: center; justify-content: center; min-height: 44px; padding: 12px 24px; background: var(--color-primary); color: var(--color-on-primary); border-radius: var(--radius-pill); font-weight: 650; }
.page-header-files .header-skip:hover { background: var(--color-primary-end); }
.page-header-files .header-code-block { margin-top: 24px; }
.page-header-files .header-code-block h3 { margin: 0; }
.page-header-files pre { font-size: clamp(14px, 1.2vw, 20px); line-height: 1.6; }
.page-header-files .header-note { border-left: 4px solid var(--color-water); }
.page-header-files .lesson-card a, .page-header-files .header-sources a { color: var(--color-water); text-decoration: underline; text-underline-offset: .18em; }
.page-header-files .lesson-table th, .page-header-files .lesson-table td { min-width: 125px; }
.page-header-files .header-sources { color: var(--color-muted); }
.page-header-files .header-sources summary { cursor: pointer; padding: 12px 0; }
.page-header-files .header-sources ul { margin-top: 16px; font-size: 18px; }
.page-header-files .header-end { padding: 30px 0; scroll-margin-top: 24px; }
.page-header-files .header-end h2 { font-size: clamp(30px, 3vw, 48px); }
.page-header-files .header-end p { font-size: clamp(20px, 1.7vw, 27px); }

.page-header-files .header-appendix { border-top: 1px solid var(--color-border); padding-top: 18px; }
.page-header-files .header-appendix > summary { cursor: pointer; padding: 12px 0; color: var(--color-water); font-size: clamp(20px, 1.8vw, 28px); }
.page-header-files .header-appendix p { font-size: clamp(18px, 1.5vw, 24px); }
.page-header-files .header-appendix a { color: var(--color-water); text-decoration: underline; }

/* A moving probe over the five divider test points. */
.page-pot-intro .divider-demo { margin: 32px 0 0; }
.page-pot-intro .divider-picture { position: relative; overflow: hidden; border-radius: var(--radius-panel); }
.page-pot-intro .divider-picture img { display: block; width: 100%; height: auto; }
.page-pot-intro .divider-picture svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.page-pot-intro .divider-demo figcaption { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-top: 18px; }
.page-pot-intro .divider-demo output { font-size: clamp(24px, 4vw, 38px); font-weight: 700; font-variant-numeric: tabular-nums; }
.page-pot-intro .divider-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.page-pot-intro .divider-points [aria-pressed="true"] { background: #e23c43; border-color: #e23c43; color: white; }