/* ── Design tokens ─────────────────────────────────────────────── */ :root { --bg: #f7f4ef; --bg-alt: #eee9e0; --surface: #ffffff; --surface-warm: #fdf9f5; --line: #e3ddd4; --line-strong: #cec7bc; --text: #201c16; --muted: #6b6157; --muted-strong: #3d3730; --accent: #c94d22; --accent-strong: #a83d18; --accent-soft: #fdf0ea; --teal: #1a7d6e; --teal-soft: #e6f5f3; --violet: #5e44a0; --violet-soft: #f0ecfa; --gold: #9e6e00; --gold-soft: #fdf4e0; --shadow: 0 2px 12px rgba(30, 22, 12, 0.07), 0 1px 3px rgba(30, 22, 12, 0.05); --shadow-md: 0 6px 24px rgba(30, 22, 12, 0.10), 0 2px 6px rgba(30, 22, 12, 0.06); --radius-xl: 20px; --radius-lg: 14px; --radius-md: 10px; --content: 1180px; --nav-bg: rgba(247, 244, 239, 0.94); } /* ── Temperature-reactive theming ────────────────────────────────── Each topic page sets data-topic on . The paper warms or cools a few degrees and the accent shifts so the whole page *feels* like its physics. Components downstream just read the tokens. */ body[data-topic="heat"] { --bg: #f8f1e9; --bg-alt: #f1e5d8; --surface-warm: #fdf3ea; --accent: #c94d22; --accent-strong: #a83d18; --accent-soft: #fdeee5; --nav-bg: rgba(248, 241, 233, 0.94); } body[data-topic="cold"] { --bg: #eef3f4; --bg-alt: #e0eaec; --surface-warm: #f0f7f7; --accent: #1a7d6e; --accent-strong: #14625a; --accent-soft: #e3f3f1; --nav-bg: rgba(238, 243, 244, 0.94); } body[data-topic="light"] { --bg: #f8f3e7; --bg-alt: #f0e7d2; --surface-warm: #fdf7e9; --accent: #b97f10; --accent-strong: #8a5d00; --accent-soft: #faf1d9; --nav-bg: rgba(248, 243, 231, 0.94); } body[data-topic="sound"] { --bg: #f3f1f8; --bg-alt: #e8e4f2; --surface-warm: #f7f4fc; --accent: #5e44a0; --accent-strong: #49348a; --accent-soft: #efeafa; --nav-bg: rgba(243, 241, 248, 0.94); } body[data-topic="flow"] { --bg: #eef2f5; --bg-alt: #dfe8ee; --surface-warm: #f1f6f9; --accent: #2f7db0; --accent-strong: #24628c; --accent-soft: #e4f0f8; --nav-bg: rgba(238, 242, 245, 0.94); } body[data-topic="materials"] { --bg: #f4f2ed; --bg-alt: #e8e3da; --surface-warm: #f8f5ef; --accent: #9e6e00; --accent-strong: #7d5700; --accent-soft: #f5edda; --nav-bg: rgba(244, 242, 237, 0.94); } /* ── Reset ─────────────────────────────────────────────────────── */ * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; color: var(--text); background-color: var(--bg); font-family: "Georgia", "Times New Roman", serif; font-size: 1rem; line-height: 1.7; } img { display: block; max-width: 100%; } a { color: inherit; } button, input { font: inherit; } /* ── Shell ─────────────────────────────────────────────────────── */ .site-shell { position: relative; } /* ── Navigation ────────────────────────────────────────────────── */ .site-nav { position: sticky; top: 0; z-index: 40; display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 3.5rem; padding: 0 max(1.25rem, calc((100% - var(--content)) / 2 + 1.25rem)); background: var(--nav-bg); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); } .brand { color: var(--text); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.1em; text-decoration: none; text-transform: uppercase; white-space: nowrap; } .nav-links { display: flex; flex-wrap: wrap; gap: 0.15rem; } .nav-links a { color: var(--muted); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.74rem; font-weight: 600; letter-spacing: 0.06em; padding: 0.35rem 0.7rem; border-radius: 6px; text-decoration: none; text-transform: uppercase; transition: color 140ms ease, background 140ms ease; } .nav-links a:hover, .nav-links a:focus-visible { color: var(--text); background: var(--line); } .site-nav a[aria-current="page"], .footer-nav a[aria-current="page"] { color: var(--accent-strong); font-weight: 700; } /* ── Hero section ──────────────────────────────────────────────── */ .hero { width: min(calc(100% - 2.5rem), var(--content)); margin: 0 auto; padding: 3.5rem 0 3rem; } .hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 3rem; align-items: center; } .hero-copy { padding: 2.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow); } .eyebrow { margin: 0 0 0.75rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; } h1, h2, h3 { margin: 0; font-family: "Georgia", serif; line-height: 1.15; font-weight: 700; color: var(--text); text-wrap: balance; } h1 { font-size: clamp(1.8rem, 3.2vw, 2.75rem); } h2 { font-size: clamp(1.35rem, 2.1vw, 1.85rem); } h3 { font-size: clamp(0.95rem, 1.2vw, 1.12rem); } .hero-lead { margin: 1.1rem 0 0; color: var(--muted); font-size: 1.02rem; line-height: 1.75; } .hero-actions, .quiz-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.75rem 0 0; } /* hero image panel */ .hero-panel, .path-media, .visual-card { overflow: hidden; border-radius: var(--radius-xl); border: 1px solid var(--line); background: var(--surface-warm); box-shadow: var(--shadow); } .hero-panel img, .path-media img, .visual-card img { width: 100%; height: 100%; object-fit: cover; } .hero-panel img[src$=".svg"], .path-media img[src$=".svg"], .visual-card img[src$=".svg"], .phenomenon-card img[src$=".svg"], .detail-panel img[src$=".svg"], .story-slide img[src$=".svg"] { object-fit: contain; padding: 1.2rem; background: var(--surface-warm); } /* homepage copy — no card box, open layout */ .hero-copy-home { background: transparent; border: none; box-shadow: none; padding: 1rem 0; border-radius: 0; align-self: center; } /* homepage hero grid overrides */ .hero-grid-home { grid-template-columns: 1fr 1fr; align-items: stretch; gap: 1.5rem; } /* homepage hero collage */ .hero-collage { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 0.75rem; min-height: 360px; } .hero-collage > .hero-panel-large { grid-row: span 2; } .hero-collage > :nth-child(4) { display: none; } /* Ensure hero panels have visible height for SVG content */ .hero-grid > .hero-panel, .hero-grid > .hero-panel-large { min-height: 280px; align-self: stretch; } /* ── Buttons ───────────────────────────────────────────────────── */ .button, .ghost-button, .control-pill, .filter-chip, .story-dot, .quiz-option, .inline-link { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; min-height: 2.6rem; padding: 0.55rem 1.1rem; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--muted-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.05em; text-decoration: none; text-transform: uppercase; cursor: pointer; transition: border-color 150ms ease, background 150ms ease, color 150ms ease, box-shadow 150ms ease, transform 150ms ease; } .button-primary { color: #fff; background: var(--accent); border-color: var(--accent-strong); box-shadow: 0 3px 10px rgba(201, 77, 34, 0.28); } .button-primary:hover, .button-primary:focus-visible { background: var(--accent-strong); border-color: var(--accent-strong); transform: translateY(-1px); box-shadow: 0 5px 16px rgba(201, 77, 34, 0.34); } .button-secondary { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); } .button-secondary:hover, .button-secondary:focus-visible { background: #fce8de; transform: translateY(-1px); } .ghost-button:hover, .ghost-button:focus-visible, .control-pill:hover, .control-pill:focus-visible, .filter-chip:hover, .filter-chip:focus-visible, .inline-link:hover, .inline-link:focus-visible { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); } .inline-link { min-height: 0; padding: 0; border: none; background: transparent; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; border-radius: 0; font-size: 0.78rem; } .inline-link:hover, .inline-link:focus-visible { color: var(--accent-strong); background: transparent; border-color: transparent; transform: none; } .filter-chip.is-active, .control-pill.is-active { color: #fff; background: var(--accent); border-color: var(--accent-strong); } .story-dot { min-height: 0.75rem; width: 0.75rem; padding: 0; border-radius: 50%; } .story-dot.is-active { background: var(--accent); border-color: var(--accent-strong); } /* ── Section wrapper ───────────────────────────────────────────── */ .section { width: min(calc(100% - 2.5rem), var(--content)); margin: 0 auto; padding: 3.5rem 0; } .section-header { max-width: 48rem; margin-bottom: 2rem; } .section-header h2 { margin-top: 0.5rem; } .section-header-wide { max-width: none; display: grid; grid-template-columns: 1fr 0.75fr; gap: 2rem; align-items: end; } .section-copy { color: var(--muted); font-size: 1rem; line-height: 1.75; margin: 0; } /* ── Pillar cards (home + teach) ───────────────────────────────── */ .pillars { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; } .pillar-card { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); display: grid; gap: 0.6rem; align-content: start; } .pillar-card p { color: var(--muted); font-size: 0.95rem; line-height: 1.65; margin: 0; } .pillar-index, .path-label, .story-step, .studio-label, .experiment-tag, .detail-kicker, .quiz-kicker, .chapter-chip { margin: 0 0 0.5rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; } /* ── Path cards (learn, index quick-starts) ────────────────────── */ .path-grid { display: grid; grid-template-columns: 1fr; gap: 1.1rem; } .path-card { display: grid; grid-template-columns: 1fr 0.8fr; gap: 0; border-radius: var(--radius-xl); background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; } .path-card-cool { grid-template-columns: 0.8fr 1fr; } .path-copy { padding: 2rem 2rem; display: grid; align-content: center; gap: 0.75rem; } .path-copy p { color: var(--muted); font-size: 0.97rem; line-height: 1.7; margin: 0; } .path-media { border-radius: 0; border: none; border-left: 1px solid var(--line); min-height: 200px; } .path-card-cool .path-media { border-left: none; border-right: 1px solid var(--line); } /* ── Hero stats ─────────────────────────────────────────────────── */ .hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin: 2rem 0 0; } .hero-stats div { padding-top: 0.9rem; border-top: 2px solid var(--line); } .hero-stats dt { color: var(--text); font-family: "Segoe UI", sans-serif; font-size: 1.5rem; font-weight: 800; } .hero-stats dd { margin: 0.3rem 0 0; color: var(--muted); font-size: 0.9rem; line-height: 1.5; } /* ── Atlas (explore) ───────────────────────────────────────────── */ .atlas-toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; } .chip-row, .control-row, .story-dots { display: flex; flex-wrap: wrap; gap: 0.5rem; } .atlas-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1.5rem; align-items: start; } .phenomena-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem; } .phenomenon-card { display: grid; gap: 0.7rem; padding: 1rem; text-align: left; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); cursor: pointer; transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease; } .phenomenon-card:hover, .phenomenon-card:focus-visible { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow-md); } .phenomenon-card[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); } .phenomenon-card img { width: 100%; aspect-ratio: 16 / 10; border-radius: calc(var(--radius-lg) - 4px); object-fit: cover; background: var(--bg-alt); } .phenomenon-card p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.6; } .chapter-chip-row { display: flex; flex-wrap: wrap; gap: 0.4rem; } .chapter-chip { display: inline-flex; align-items: center; min-height: 1.6rem; padding: 0.18rem 0.55rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent-strong); } .detail-panel { position: sticky; top: 4.5rem; padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); } .detail-panel p { color: var(--muted); font-size: 0.95rem; line-height: 1.7; margin: 0; } .detail-panel img { width: 100%; aspect-ratio: 16 / 10; margin: 1rem 0; border-radius: var(--radius-md); object-fit: cover; background: var(--bg-alt); } .detail-list { display: grid; gap: 0.75rem; margin-top: 1rem; } .detail-list div { padding-top: 0.8rem; border-top: 1px solid var(--line); } .detail-list dt { margin-bottom: 0.28rem; color: var(--muted-strong); font-weight: 700; font-size: 0.9rem; } .detail-list dd { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.6; } /* ── Studio (try demos) ────────────────────────────────────────── */ .studio-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; } .studio-card-wide { grid-column: 1 / -1; } .studio-card { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); } .studio-card p { color: var(--muted); font-size: 0.95rem; line-height: 1.68; margin: 0.5rem 0 0; } .range-wrap { display: grid; gap: 0.6rem; margin-top: 1rem; } .range-wrap span { color: var(--muted-strong); font-family: "Segoe UI", sans-serif; font-size: 0.82rem; font-weight: 700; } input[type="range"] { width: 100%; accent-color: var(--accent); } .meter, .phase-visual { position: relative; overflow: hidden; height: 0.85rem; margin-top: 1rem; border-radius: 999px; background: var(--bg-alt); border: 1px solid var(--line); } .meter-fill { width: 20%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--gold)); transition: width 340ms cubic-bezier(0.34, 1.4, 0.64, 1); } .meter-fill-sound { background: linear-gradient(90deg, var(--teal), var(--violet)); } .light-swatch { height: 5rem; margin-top: 1rem; border-radius: var(--radius-md); border: 1px solid var(--line); } .phase-visual { height: 5rem; } .phase-state { width: 100%; height: 100%; border-radius: inherit; } .demo-readout { margin: 0.75rem 0 0; color: var(--muted); font-size: 0.93rem; line-height: 1.6; } /* ── Experiments (try) ─────────────────────────────────────────── */ .experiment-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; } .experiment-card { padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); } .experiment-card p { color: var(--muted); font-size: 0.93rem; line-height: 1.65; margin: 0.4rem 0 0; } /* ── Quiz ──────────────────────────────────────────────────────── */ .quiz-shell { display: grid; gap: 1rem; } .quiz-progress { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: 0.9rem; } .quiz-card { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow); } .quiz-card p { color: var(--muted); margin: 0; line-height: 1.7; } .quiz-options { display: grid; gap: 0.65rem; margin-top: 1rem; } .quiz-option { justify-content: flex-start; min-height: 3rem; padding-inline: 1rem; text-align: left; text-transform: none; font-size: 0.88rem; letter-spacing: 0; border-radius: var(--radius-md); } .quiz-option.is-correct { color: #fff; background: var(--teal); border-color: var(--teal); } .quiz-option.is-wrong { color: #fff; background: #c0392b; border-color: #a93226; } .quiz-feedback { margin: 0.8rem 0 0; color: var(--muted-strong); font-size: 0.93rem; line-height: 1.65; } /* ── Visual grid ───────────────────────────────────────────────── */ .visual-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; } .visual-card figcaption { padding: 0.85rem 1rem 1rem; color: var(--muted); font-size: 0.9rem; line-height: 1.65; } /* ── Glossary ──────────────────────────────────────────────────── */ .glossary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; } .glossary-card { padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); } .glossary-card p { color: var(--muted); font-size: 0.93rem; line-height: 1.65; margin: 0.4rem 0 0; } /* ── Story viewer (learn) ──────────────────────────────────────── */ .story-viewer { padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); } .story-track { position: relative; overflow: hidden; } .story-slide { display: none; grid-template-columns: 0.92fr 1.08fr; gap: 1.5rem; align-items: center; } .story-slide.is-active { display: grid; } .story-slide img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--line); } .story-copy { padding: 0.6rem 0.4rem; } .story-copy p { color: var(--muted); font-size: 0.97rem; line-height: 1.7; margin: 0.5rem 0 0; } .story-controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); } /* ── About / CTA strip ─────────────────────────────────────────── */ .about-section { padding-bottom: 5rem; } .about-layout { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 2rem; padding: 2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow); align-items: center; } .about-copy p { color: var(--muted); font-size: 1rem; line-height: 1.75; margin: 0; } .about-copy a { color: var(--accent-strong); text-decoration: underline; text-underline-offset: 3px; } .about-copy a:hover { color: var(--text); } /* ── Footer ────────────────────────────────────────────────────── */ .site-footer { margin-top: 4rem; padding: 2rem 0; border-top: 1px solid var(--line); background: var(--surface-warm); } .footer-inner { width: min(calc(100% - 2.5rem), var(--content)); margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 2rem; } .footer-inner .brand { flex-shrink: 0; } /* Discreet company attribution + contact (Seailles Limited). */ .footer-meta { width: min(calc(100% - 2.5rem), var(--content)); margin: 1.6rem auto 0; padding-top: 1.3rem; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 0.55rem 1rem; flex-wrap: wrap; } .footer-meta img { height: 22px; width: auto; display: block; opacity: 0.92; } .footer-meta p { margin: 0; color: var(--muted); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.82rem; line-height: 1.5; } .footer-meta a { color: var(--muted-strong); text-decoration: none; font-weight: 600; } .footer-meta a:hover, .footer-meta a:focus-visible { color: var(--accent-strong); text-decoration: underline; } .footer-nav { display: flex; flex-wrap: wrap; gap: 0.2rem; flex: 1; } .footer-nav a { color: var(--muted); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.07em; padding: 0.25rem 0.55rem; border-radius: 5px; text-decoration: none; text-transform: uppercase; transition: color 140ms ease, background 140ms ease; } .footer-nav a:hover, .footer-nav a:focus-visible { color: var(--text); background: var(--line); } .footer-tagline { width: 100%; margin: 0; color: var(--muted); font-size: 0.85rem; } .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; align-items: start; } .footer-brand-block .footer-tagline { margin-top: 0.7rem; line-height: 1.6; } .footer-col { display: grid; gap: 0.1rem; justify-items: start; } .footer-col .footer-col-title { margin: 0 0 0.4rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; } .footer-grid .footer-nav a { padding: 0.18rem 0; border-radius: 3px; text-transform: none; letter-spacing: 0.01em; font-size: 0.85rem; font-weight: 400; } @media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand-block { grid-column: 1 / -1; } } /* ── Design signature ──────────────────────────────────────────── */ ::selection { background: var(--accent); color: #fff; } body { background-image: radial-gradient(1100px 480px at 88% -8%, rgba(201, 77, 34, 0.06), rgba(201, 77, 34, 0)); background-repeat: no-repeat; } .brand::before { content: ""; display: inline-block; width: 1.55em; height: 1.55em; margin-right: 0.55em; vertical-align: -0.48em; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Crect width='64' height='64' rx='14' fill='%23c94d22'/%3E%3Cpath d='M22 10c0 4-5 5-5 9s5 5 5 9' fill='none' stroke='%23f7f4ef' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M40 10c0 4-5 5-5 9s5 5 5 9' fill='none' stroke='%23f7f4ef' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M14 36h36l-4 16a4 4 0 0 1-4 3H22a4 4 0 0 1-4-3z' fill='%23f7f4ef'/%3E%3C/svg%3E") center / contain no-repeat; } .section-header h2::after { content: ""; display: block; width: 3.4rem; height: 3px; margin-top: 0.65rem; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--gold)); } /* ── Scroll-progress bar ───────────────────────────────────────── */ .lesson-progress-bar { position: fixed; top: 0; left: 0; width: 0%; height: 3px; z-index: 100; background: linear-gradient(90deg, var(--accent), var(--gold)); transition: width 80ms linear; pointer-events: none; } /* ── Lesson page wrapper ───────────────────────────────────────── */ .page { width: min(calc(100% - 2.5rem), var(--content)); margin: 0 auto; padding: 2rem 0 5rem; } .page > .section { width: auto; padding: 3rem 0 0; } /* ── Lesson ToC ────────────────────────────────────────────────── */ .lesson-toc { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 2.5rem; } .lesson-toc a { display: inline-flex; align-items: center; min-height: 2.1rem; padding: 0.3rem 0.75rem; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--muted-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.69rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none; transition: border-color 140ms ease, color 140ms ease, background 140ms ease; } .lesson-toc a:hover, .lesson-toc a:focus-visible { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); } /* ── Lesson content grids ──────────────────────────────────────── */ .grid-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; } .grid-three, .cards, .teacher-grid, .print-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; } /* ── Lesson content cards ──────────────────────────────────────── */ .panel, .diagram-card, .sequence-card, .question-card, .activity-card, .teacher-card, .sim-card { padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); } .panel p, .diagram-card p, .sequence-card p, .question-card p, .activity-card p, .teacher-card p, .sim-card p { color: var(--muted); font-size: 0.97rem; line-height: 1.72; margin: 0.5rem 0 0; } .diagram-card img { width: 100%; border-radius: calc(var(--radius-lg) - 4px); margin-top: 1rem; border: 1px solid var(--line); background: var(--surface-warm); } .diagram-card img[src$=".svg"] { object-fit: contain; padding: 1rem; background: var(--surface-warm); } /* In multi-column grids a narrow track can fail to resolve the image's intrinsic ratio, leaving the figure stretched tall with a big gap above it. Pin the true 4:3 ratio, and let the image card size to its content so the diagram sits directly under its text. (Full-width explainer cards are not in these grids and are unaffected.) */ .grid-two .diagram-card img, .grid-three .diagram-card img, .cards .diagram-card img { aspect-ratio: 1200 / 900; height: auto; } .grid-two > .diagram-card, .grid-three > .diagram-card, .cards > .diagram-card { align-self: start; } .kicker { margin: 0 0 0.6rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.71rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; } .callout { margin-top: 1rem; padding: 1.1rem 1.25rem; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: var(--radius-md); background: var(--accent-soft); color: var(--muted-strong); font-size: 0.97rem; line-height: 1.72; } ul { margin: 0.75rem 0 0; padding-left: 1.2rem; color: var(--muted); font-size: 0.97rem; line-height: 1.72; } /* ── Lesson simulation components ──────────────────────────────── */ .sim-shell { display: grid; gap: 0.9rem; } .sim-meter { position: relative; overflow: hidden; height: 0.85rem; margin-top: 0.5rem; border-radius: 999px; background: var(--bg-alt); border: 1px solid var(--line); } .sim-fill { width: 30%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--gold), var(--violet)); transition: width 380ms cubic-bezier(0.34, 1.56, 0.64, 1); } .sim-stage { position: relative; overflow: hidden; height: 7rem; margin-top: 0.5rem; border-radius: var(--radius-md); background: var(--bg-alt); border: 1px solid var(--line); } .sim-state { width: 100%; height: 100%; border-radius: inherit; } .sim-readout { color: var(--muted); font-size: 0.95rem; line-height: 1.7; margin: 0; } .sim-canvas { display: block; width: 100%; height: auto; margin-top: 0.5rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface-warm); } .sim-canvas-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.6rem; } /* ── Print card (ruled) ────────────────────────────────────────── */ .print-card { padding: 1.4rem; border-radius: var(--radius-lg); background: repeating-linear-gradient( 180deg, transparent, transparent 27px, rgba(30, 22, 12, 0.04) 28px ), var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); } .print-card p { color: var(--muted); font-size: 0.97rem; line-height: 1.72; } /* ── Footer note ───────────────────────────────────────────────── */ .footer-note { margin-top: 3rem; padding-top: 1.1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.95rem; line-height: 1.72; } /* ── Responsive: 1080px ────────────────────────────────────────── */ @media (max-width: 1080px) { .hero-grid, .section-header-wide, .atlas-layout, .story-slide, .path-card, .path-card-cool, .about-layout { grid-template-columns: 1fr; } .path-media { border-left: none; border-top: 1px solid var(--line); min-height: 220px; } .path-card-cool .path-media { border-right: none; border-bottom: 1px solid var(--line); } .detail-panel { position: static; } .pillars, .studio-grid, .experiment-grid, .visual-grid, .glossary-grid, .phenomena-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } } /* ── Responsive: 780px ─────────────────────────────────────────── */ @media (max-width: 780px) { .hero, .section, .page { width: min(calc(100% - 1.25rem), var(--content)); } .site-nav { height: auto; flex-wrap: wrap; padding: 0.75rem 1rem; gap: 0.5rem; } .nav-links { width: 100%; gap: 0.1rem; } .nav-links a { font-size: 0.7rem; padding: 0.3rem 0.55rem; } .hero { padding: 1.5rem 0 2rem; } .hero-copy { padding: 1.5rem; } .hero-collage, .hero-stats, .pillars, .studio-grid, .experiment-grid, .visual-grid, .glossary-grid, .phenomena-grid { grid-template-columns: 1fr; } .hero-panel-large { grid-row: span 1; } .story-controls, .quiz-progress { justify-content: flex-start; align-items: flex-start; } } /* ── Responsive: lesson grids ──────────────────────────────────── */ @media (max-width: 980px) { .grid-two, .grid-three, .cards, .teacher-grid, .print-grid { grid-template-columns: 1fr; } } /* ── Print ─────────────────────────────────────────────────────── */ @media print { body { color: #111; background: #fff; background-image: none; } .site-nav, .lesson-progress-bar, .lesson-toc, .hero-actions, .site-footer { display: none; } .section-header h2::after, .brand::before { display: none; } .page, .section { width: 100%; } .hero-copy, .panel, .diagram-card, .question-card, .sequence-card, .activity-card, .teacher-card, .print-card, .sim-card { color: #111; background: #fff; box-shadow: none; border: 1px solid #ccc; } .kicker, .eyebrow { color: #555; } .panel p, .diagram-card p, .sequence-card p, .question-card p, .activity-card p, .teacher-card p, .print-card p, .sim-readout { color: #333; } .breadcrumb, .next-lesson-band, .quiz-history, .atlas-count { display: none; } } /* ── Skip link ──────────────────────────────────────────────────── */ .skip-link { position: fixed; top: -100%; left: 1rem; z-index: 9999; padding: 0.5rem 1.25rem; background: var(--accent); color: #fff; font-family: "Segoe UI", "Inter", "Helvetica Neue", sans-serif; font-size: 0.9rem; font-weight: 600; border-radius: var(--radius-md); text-decoration: none; transition: top 0.15s ease; } .skip-link:focus { top: 1rem; outline: 3px solid var(--accent-strong); outline-offset: 2px; } /* ── Breadcrumb ─────────────────────────────────────────────────── */ .breadcrumb { display: flex; gap: 0.5rem; align-items: center; font-size: 0.82rem; color: var(--muted); padding: 1rem 2rem 0; max-width: var(--content); margin: 0 auto; font-family: "Segoe UI", "Inter", "Helvetica Neue", sans-serif; } .breadcrumb a { color: var(--muted); text-decoration: none; } .breadcrumb a:hover { color: var(--accent); text-decoration: underline; } .breadcrumb-sep { color: var(--line-strong); } .breadcrumb [aria-current="page"] { color: var(--text); font-weight: 500; } /* ── Next-lesson band ───────────────────────────────────────────── */ .next-lesson-band { background: var(--accent-soft); border-top: 1px solid var(--line); padding: 2rem; } .next-lesson-inner { max-width: var(--content); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; } .next-lesson-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin: 0 0 0.2rem; font-family: "Segoe UI", "Inter", "Helvetica Neue", sans-serif; } .next-lesson-title { font-size: 1.05rem; font-weight: 600; color: var(--text); margin: 0; font-family: "Segoe UI", "Inter", "Helvetica Neue", sans-serif; } /* ── Atlas count + quiz history ─────────────────────────────────── */ .atlas-count { font-size: 0.82rem; color: var(--muted); margin: 0.25rem 0 0; font-family: "Segoe UI", "Inter", "Helvetica Neue", sans-serif; } .quiz-history { font-size: 0.88rem; color: var(--muted); margin: 0 0 1.5rem; font-family: "Segoe UI", "Inter", "Helvetica Neue", sans-serif; } /* ── Glossary ───────────────────────────────────────────────────── */ .glossary-nav { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; } .glossary-nav a { display: inline-flex; align-items: center; justify-content: center; min-width: 2.1rem; min-height: 2.1rem; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); color: var(--muted-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.82rem; font-weight: 700; text-decoration: none; } .glossary-nav a:hover, .glossary-nav a:focus-visible { border-color: var(--accent); color: var(--accent-strong); background: var(--accent-soft); } .glossary-letter { margin: 2.2rem 0 0.4rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 1.05rem; font-weight: 800; letter-spacing: 0.08em; } .glossary-list { margin: 0; padding: 1.1rem 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); } .glossary-list dt { font-weight: 700; scroll-margin-top: 5rem; } .glossary-list dt + dd, .glossary-list dd + dt { margin-top: 0.25rem; } .glossary-list dd + dt { margin-top: 1rem; } .glossary-list dd { margin-left: 0; color: var(--muted); line-height: 1.7; } /* ── 3D kitchen (kitchen3d.html) ────────────────────────────────── */ .k3d-body { overflow: hidden; height: 100vh; } .k3d-topbar { position: fixed; top: 0; left: 0; right: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 3.5rem; padding: 0 1.25rem; background: rgba(247, 244, 239, 0.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); } .k3d-topbar-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; } .k3d-stage { position: fixed; inset: 0; background: linear-gradient(180deg, #efe9df 0%, #e4dccd 100%); } .k3d-stage canvas { display: block; width: 100%; height: 100%; touch-action: none; } .k3d-label { position: absolute; z-index: 10; margin: 0; padding: 0.3rem 0.7rem; transform: translate(-50%, -130%); border-radius: 999px; background: rgba(32, 28, 22, 0.85); color: #f7f4ef; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.78rem; font-weight: 700; white-space: nowrap; pointer-events: none; } .k3d-index { position: fixed; z-index: 20; top: 4.5rem; left: 1rem; width: 250px; max-height: calc(100vh - 6rem); overflow-y: auto; padding: 1rem 1.1rem; background: rgba(255, 255, 255, 0.93); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); backdrop-filter: blur(8px); } .k3d-index h2 { margin: 0 0 0.3rem; font-size: 1.05rem; } .k3d-index-copy { margin: 0 0 0.8rem; color: var(--muted); font-size: 0.85rem; line-height: 1.55; } .k3d-index-list { display: grid; gap: 0.4rem; } .k3d-index-list button { display: flex; align-items: center; gap: 0.55rem; width: 100%; padding: 0.5rem 0.7rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); color: var(--text); font: inherit; font-size: 0.86rem; text-align: left; cursor: pointer; } .k3d-index-list button:hover, .k3d-index-list button:focus-visible { border-color: var(--accent); background: var(--accent-soft); } .k3d-index-list button.is-active { border-color: var(--accent-strong); background: var(--accent-soft); font-weight: 700; } .k3d-index-dot { flex: 0 0 auto; width: 0.55rem; height: 0.55rem; border-radius: 999px; background: var(--accent); } /* A visited phenomenon: filled teal dot with a small check. */ .k3d-index-list button.is-visited .k3d-index-dot { background: var(--teal); position: relative; } .k3d-index-list button.is-visited .k3d-index-dot::after { content: ""; position: absolute; left: 0.16rem; top: 0.06rem; width: 0.14rem; height: 0.26rem; border: solid #fff; border-width: 0 0.07rem 0.07rem 0; transform: rotate(40deg); } .k3d-index-list button.is-visited:not(.is-active) { color: var(--muted-strong); } .k3d-progress { margin: 0.75rem 0 0; padding-top: 0.6rem; border-top: 1px solid var(--line); color: var(--teal); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; } .k3d-panel { position: fixed; z-index: 25; top: 4.5rem; right: 1rem; width: min(370px, calc(100vw - 2rem)); max-height: calc(100vh - 6rem); overflow-y: auto; padding: 1.3rem 1.4rem; background: rgba(255, 255, 255, 0.96); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); backdrop-filter: blur(8px); } .k3d-panel-title { margin: 0 0 0.6rem; font-size: 1.35rem; line-height: 1.25; } .k3d-panel-body { margin: 0 0 0.8rem; color: var(--muted); font-size: 0.94rem; line-height: 1.65; } .k3d-panel-question { margin: 0 0 1rem; padding: 0.7rem 0.9rem; border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 var(--radius-md) var(--radius-md) 0; color: var(--muted-strong); font-size: 0.9rem; line-height: 1.6; } .k3d-panel-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; } .k3d-panel-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; border-top: 1px solid var(--line); padding-top: 0.9rem; } .k3d-hint { position: fixed; z-index: 15; left: 50%; bottom: 1rem; transform: translateX(-50%); margin: 0; padding: 0.45rem 1rem; border-radius: 999px; background: rgba(32, 28, 22, 0.78); color: #f7f4ef; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.8rem; pointer-events: none; } .k3d-fallback { position: fixed; inset: 0; z-index: 40; display: flex; align-items: center; justify-content: center; padding: 1.5rem; background: var(--bg); } .k3d-fallback[hidden] { display: none; } .k3d-fallback-card { max-width: 34rem; padding: 2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); } @media (max-width: 780px) { .k3d-index { top: auto; bottom: 0; left: 0; right: 0; width: auto; max-height: 38vh; border-radius: var(--radius-xl) var(--radius-xl) 0 0; } .k3d-panel { top: auto; bottom: 0; left: 0; right: 0; width: auto; max-height: 62vh; border-radius: var(--radius-xl) var(--radius-xl) 0 0; } .k3d-hint { display: none; } } /* ── Ambient physics field ───────────────────────────────────────── A full-viewport canvas behind all content. ambient bootstrap in nav.js paints a topic-keyed field (rising heat, falling cold, drifting light, sound rings, flow streamlines, a material lattice). Kept very faint so body text stays readable on top. */ #ambient-field { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: 0.5; } .site-shell { position: relative; z-index: 1; } /* ── The dial (single-scrubber lesson story) ───────────────────────── */ .dial-card { padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); } .dial-canvas { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface-warm); } .dial-state-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.6rem 0.9rem; margin-top: 1rem; } .dial-badge { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.3rem 0.75rem; border-radius: 999px; background: var(--accent-soft); border: 1px solid var(--line); color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; } .dial-badge::before { content: ""; width: 0.55rem; height: 0.55rem; border-radius: 999px; background: var(--accent); } .dial-temp { font-family: "Consolas", "SFMono-Regular", "Menlo", monospace; font-size: 1.4rem; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; } .dial-temp span { font-size: 0.9rem; color: var(--muted); } .dial-range-wrap { display: grid; gap: 0.45rem; margin-top: 1.1rem; } .dial-range-label { display: flex; justify-content: space-between; color: var(--muted-strong); font-family: "Segoe UI", sans-serif; font-size: 0.82rem; font-weight: 700; } .dial-range-label .dial-energy-pct { font-family: "Consolas", "SFMono-Regular", "Menlo", monospace; color: var(--accent-strong); font-variant-numeric: tabular-nums; } .dial-card input[type="range"] { width: 100%; accent-color: var(--accent); } .dial-readout { margin: 0.9rem 0 0; color: var(--muted); font-size: 0.97rem; line-height: 1.72; min-height: 3.4em; } .dial-audio-btn { margin-left: auto; } /* ── Language switcher & landing chooser ───────────────────────────── */ .lang-switch { display: inline-flex; align-items: center; gap: 0.3rem; margin-left: 0.4rem; } .lang-switch-float { position: fixed; bottom: 1rem; right: 1rem; z-index: 8000; padding: 0.3rem 0.6rem; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow); } .lang-globe { font-size: 0.95rem; line-height: 1; } .lang-select { font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.74rem; font-weight: 600; letter-spacing: 0.03em; color: var(--muted); background: transparent; border: 1px solid var(--line-strong); border-radius: 6px; padding: 0.28rem 0.4rem; cursor: pointer; } .lang-select:hover { color: var(--text); } .lang-modal { position: fixed; inset: 0; z-index: 9500; display: grid; place-items: center; padding: 5vmin; background: rgba(24, 18, 10, 0.55); } .lang-modal-card { width: 100%; max-width: 460px; padding: 1.7rem 1.8rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); font-family: "Segoe UI", "Helvetica Neue", sans-serif; } .lang-modal-card h2 { font-family: "Georgia", serif; font-size: 1.4rem; margin: 0 0 0.3rem; } .lang-modal-card > p { margin: 0 0 1.1rem; color: var(--muted); font-size: 0.85rem; } .lang-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.55rem; } .lang-grid button { padding: 0.65rem 0.85rem; background: var(--surface-warm); border: 1px solid var(--line-strong); border-radius: 8px; color: var(--text); font-size: 1rem; text-align: left; cursor: pointer; transition: border-color 140ms ease, background 140ms ease; } .lang-grid button:hover { border-color: var(--accent); background: var(--accent-soft); } .lang-modal-skip { margin-top: 1rem; padding: 0; background: none; border: none; color: var(--accent-strong); font-size: 0.85rem; font-weight: 700; text-decoration: underline; cursor: pointer; } /* ── History & equation block ────────────────────────────────────── A compact "who, when, and the governing equation" note attached to a phenomenon. The equation is shown in serif italics in its own framed row. */ .milestone { margin-top: 1.2rem; padding: 1.2rem 1.4rem; background: var(--surface-warm); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: var(--radius-md); } .milestone-label { margin: 0 0 0.4rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; } .milestone p { margin: 0.4rem 0 0; color: var(--muted); font-size: 0.95rem; line-height: 1.7; } .milestone p strong { color: var(--muted-strong); } .equation { margin: 0.9rem 0 0.2rem; padding: 0.85rem 1rem; background: var(--surface); border: 1px dashed var(--line-strong); border-radius: var(--radius-md); text-align: center; } .equation + .equation { margin-top: 0.6rem; } .equation-math { display: block; font-family: "Cambria Math", "Georgia", serif; font-style: italic; font-size: 1.3rem; line-height: 1.4; color: var(--text); } .equation-name { display: block; margin-top: 0.3rem; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-style: normal; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); } .milestone sub { font-size: 0.7em; vertical-align: -0.25em; } .milestone sup { font-size: 0.7em; vertical-align: 0.4em; } /* Expandable derivation for technical readers. Native

. */ .derivation { margin-top: 1rem; border-top: 1px dashed var(--line-strong); } .derivation > summary { cursor: pointer; list-style: none; display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 0 0.3rem; color: var(--accent-strong); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; } .derivation > summary::-webkit-details-marker { display: none; } .derivation > summary::before { content: "▸"; display: inline-block; font-size: 0.85em; transition: transform 140ms ease; } .derivation[open] > summary::before { transform: rotate(90deg); } .derivation-body { padding: 0.3rem 0 0.2rem; } .derivation-body p { margin: 0.6rem 0 0; color: var(--muted); font-size: 0.93rem; line-height: 1.78; } .derivation-need { padding: 0.6rem 0.85rem; background: var(--accent-soft); border-radius: 8px; color: var(--muted-strong) !important; } .derivation-body .equation { background: var(--surface-warm); } .derivation-body .equation-math { font-size: 1.12rem; } .derivation-step { color: var(--accent-strong) !important; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.72rem !important; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; } /* ── Curriculum alignment (for teachers) ───────────────────────────── */ .curriculum { margin-top: 1.5rem; padding: 1.2rem 1.4rem; background: var(--teal-soft); border: 1px solid #cfe7e2; border-left: 4px solid var(--teal); border-radius: var(--radius-md); } .curriculum-label { margin: 0; color: #13564b; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; } .curriculum-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.7rem 0 0.2rem; } .curriculum-tag { padding: 0.4rem 0.75rem; background: var(--surface); border: 1px solid #cfe7e2; border-radius: 999px; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.82rem; color: var(--muted-strong); } .curriculum-tag strong { color: #13564b; font-weight: 800; } .curriculum p { margin: 0.6rem 0 0; color: var(--muted); font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.9rem; line-height: 1.65; } /* ── Present mode (fullscreen dial for projection) ─────────────────── */ .dial-present { padding: 0.3rem 0.7rem; font-size: 0.72rem; } .dial-share { margin-left: auto; padding: 0.3rem 0.7rem; font-size: 0.72rem; } .dial-hear { padding: 0.3rem 0.7rem; font-size: 0.72rem; } .dial-card:fullscreen { display: flex; flex-direction: column; justify-content: center; background: var(--bg); padding: 3vmin 4vmin; } .dial-card:fullscreen .dial-canvas { max-width: min(94vw, 1500px); margin: 0 auto; } .dial-card:fullscreen .dial-readout { font-size: 1.15rem; max-width: 70ch; margin-inline: auto; } .dial-card:fullscreen .dial-state-row, .dial-card:fullscreen .dial-range-wrap { max-width: min(94vw, 1500px); margin-inline: auto; width: 100%; } /* ── Hover-to-enlarge figures ────────────────────────────────────── Small diagrams in collages and cards are hard to read; zoom.js pops a large centred copy on hover (tap to pin on touch). These selectors mark the figures as zoomable; the overlay holds the enlarged image. */ .hero-panel img, .path-media img, .diagram-card img, .detail-panel img, .visual-card img { cursor: zoom-in; } .zoom-overlay { position: fixed; inset: 0; z-index: 9000; display: grid; place-items: center; padding: 4vmin; background: rgba(24, 18, 10, 0.5); opacity: 0; transition: opacity 160ms ease; } .zoom-overlay.is-on { opacity: 1; } .zoom-overlay[hidden] { display: none; } .zoom-overlay img { max-width: 92vw; max-height: 92vh; width: auto; height: auto; border-radius: 16px; background: var(--surface-warm); padding: 0.6rem; box-shadow: 0 30px 90px rgba(0, 0, 0, 0.45); transform: scale(0.96); transition: transform 160ms ease; } .zoom-overlay.is-on img { transform: scale(1); } /* ── Reduced motion ─────────────────────────────────────────────── */ @media (prefers-reduced-motion: reduce) { .zoom-overlay, .zoom-overlay img { transition: none; } html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; } } /* ── Kitchen Lab (lab.html) ─────────────────────────────────────────── */ .lab-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 1.2rem; align-items: start; margin-top: 0.9rem; } .lab-canvas { width: 100%; height: auto; display: block; border-radius: 12px; background: #0a1028; cursor: crosshair; touch-action: manipulation; } .lab-side { display: flex; flex-direction: column; gap: 0.9rem; } .lab-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; } .lab-probe canvas { width: 100%; height: auto; display: block; border-radius: 8px; background: rgba(255, 255, 255, 0.55); } .lab-challenge-block { margin-top: 1.2rem; } .lab-challenge-list { list-style: none; margin: 0.6rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.5rem; } .lab-challenge { display: flex; gap: 0.55rem; align-items: baseline; padding: 0.55rem 0.75rem; border: 1px solid rgba(107, 97, 87, 0.25); border-radius: 10px; font-size: 0.88rem; line-height: 1.5; color: var(--muted); background: rgba(255, 255, 255, 0.45); } .lab-challenge.is-done { border-color: rgba(26, 125, 110, 0.5); background: rgba(26, 125, 110, 0.08); color: var(--ink); } .lab-challenge-check { flex: 0 0 1.1rem; color: #1a7d6e; font-weight: 700; } .lab-challenge-note { font-size: 0.82rem; color: var(--muted); margin-top: 0.6rem; } .visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; } @media (max-width: 860px) { .lab-layout { grid-template-columns: 1fr; } } /* Badges on the progress page */ .prog-badges { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 0.9rem; } .prog-badge { padding: 0.5rem 0.85rem; border-radius: 999px; border: 1px dashed rgba(107, 97, 87, 0.4); font-size: 0.85rem; color: var(--muted); } .prog-badge.is-on { border-style: solid; border-color: rgba(201, 77, 34, 0.55); background: rgba(201, 77, 34, 0.08); color: var(--ink); font-weight: 600; } /* ── Cross-page view transitions (progressive enhancement) ──────────── */ @media not (prefers-reduced-motion: reduce) { @view-transition { navigation: auto; } ::view-transition-old(root) { animation-duration: 0.18s; } ::view-transition-new(root) { animation-duration: 0.22s; } } /* ── Physics Lens ───────────────────────────────────────────────────── */ .kpa-lens { position: absolute; z-index: 30; display: none; pointer-events: none; filter: drop-shadow(0 6px 14px rgba(40, 32, 24, 0.28)); } .kpa-lens canvas { display: block; border-radius: 50%; } .kpa-lens-caption { display: block; margin: 6px auto 0; width: max-content; max-width: 220px; padding: 0.25rem 0.6rem; background: rgba(58, 53, 49, 0.92); color: #f7f4ef; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.72rem; border-radius: 999px; text-align: center; } @media print { .kpa-lens { display: none !important; } } /* Lab goal editor */ .lab-goal-editor { margin-top: 1rem; font-size: 0.9rem; } .lab-goal-editor summary { cursor: pointer; color: var(--muted); font-weight: 600; } .lab-goal-form { display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: end; margin-top: 0.8rem; } .lab-goal-form label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.8rem; color: var(--muted); } .lab-goal-form select, .lab-goal-form input { padding: 0.35rem 0.5rem; border: 1px solid rgba(107, 97, 87, 0.35); border-radius: 8px; background: rgba(255, 255, 255, 0.7); font: inherit; font-size: 0.85rem; max-width: 9rem; } .lab-goal { margin-bottom: 0.6rem; } /* ── Worksheet number generator ─────────────────────────────────────── */ .ws-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; margin-bottom: 1.1rem; } .ws-note { font-size: 0.78rem; color: var(--muted); max-width: 46ch; } .ws-answer { display: none; margin-left: 0.4rem; padding: 0.1rem 0.5rem; border-radius: 999px; background: rgba(26, 125, 110, 0.12); color: #14604f; font-weight: 700; font-size: 0.85em; } body.ws-show-answers .ws-answer { display: inline-block; } @media print { .ws-controls { display: none; } } /* ── Exam & certificate ─────────────────────────────────────────────── */ .exam-intro { display: flex; flex-wrap: wrap; align-items: end; gap: 1rem; margin-bottom: 1rem; } .exam-intro label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.85rem; color: var(--muted); font-weight: 600; } .exam-intro input { padding: 0.55rem 0.8rem; border: 1px solid rgba(107, 97, 87, 0.35); border-radius: 10px; background: rgba(255, 255, 255, 0.75); font: inherit; min-width: 18rem; } .exam-result { text-align: center; } .exam-certificate { display: block; width: min(100%, 760px); margin: 1.2rem auto; border-radius: 8px; box-shadow: 0 10px 30px rgba(40, 32, 24, 0.18); } .exam-result .ghost-button { margin-top: 0.9rem; } /* ── Scrollytelling story ───────────────────────────────────────────── */ .scrolly { position: relative; } .scrolly-stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; } .scrolly-stage canvas { display: block; width: 100%; height: 100%; } .scrolly-caption { position: absolute; left: 50%; bottom: 1.4rem; transform: translateX(-50%); margin: 0; padding: 0.4rem 1rem; background: rgba(58, 53, 49, 0.85); color: #f7f4ef; font-family: "Segoe UI", "Helvetica Neue", sans-serif; font-size: 0.85rem; border-radius: 999px; max-width: min(90vw, 46ch); text-align: center; } .scrolly-steps { position: relative; margin-top: -100vh; pointer-events: none; } .scrolly-step { min-height: 100vh; display: flex; align-items: center; justify-content: flex-start; padding: 0 clamp(1rem, 5vw, 4rem); } .scrolly-card { pointer-events: auto; max-width: 380px; background: rgba(247, 244, 239, 0.94); border: 1px solid rgba(107, 97, 87, 0.25); border-radius: 16px; padding: 1.3rem 1.5rem; box-shadow: 0 12px 30px rgba(40, 32, 24, 0.16); opacity: 0.45; transition: opacity 0.3s ease; } .scrolly-step.is-active .scrolly-card { opacity: 1; } .scrolly-card h3 { margin: 0.3rem 0 0.6rem; font-size: 1.25rem; } .scrolly-card p { margin: 0 0 0.6rem; font-size: 0.95rem; line-height: 1.6; } @media (max-width: 700px) { .scrolly-step { align-items: flex-end; padding-bottom: 4.4rem; } .scrolly-card { max-width: 100%; } } @media (prefers-reduced-motion: reduce) { .scrolly-card { transition: none; } } /* ── 3D kitchen hunt overlay ────────────────────────────────────────── */ .k3d-hunt { position: fixed; top: 68px; left: 50%; transform: translateX(-50%); z-index: 40; max-width: min(92vw, 560px); background: rgba(58, 53, 49, 0.94); color: #f7f4ef; border-radius: 16px; padding: 0.9rem 1.2rem; box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35); text-align: center; font-family: "Segoe UI", "Helvetica Neue", sans-serif; } .k3d-hunt-text { margin: 0 0 0.35rem; font-size: 1.02rem; font-weight: 600; line-height: 1.5; } .k3d-hunt-meta { margin: 0 0 0.55rem; font-size: 0.85rem; opacity: 0.85; } .k3d-hunt-meta a { color: #ffd9a0; } .k3d-hunt .ghost-button { font-size: 0.78rem; } /* ── Phone layout fixes ─────────────────────────────────────────────── */ /* 3D kitchen topbar: one compact row that scrolls sideways instead of stacking a column of buttons over the scene. */ @media (max-width: 920px) { .k3d-topbar { gap: 0.5rem; height: auto; min-height: 3rem; padding: 0.35rem 0.6rem; } .k3d-topbar .brand { font-size: 0.8rem; flex: 0 0 auto; white-space: nowrap; } .k3d-topbar-actions { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; max-width: 100%; } .k3d-topbar-actions::-webkit-scrollbar { display: none; } .k3d-topbar-actions .ghost-button, .k3d-topbar-actions select { flex: 0 0 auto; white-space: nowrap; font-size: 0.62rem; padding: 0.35rem 0.55rem; } .k3d-hunt { top: 3.4rem; } } /* Story: keep the caption clear of the text cards, which sit at the bottom of the screen on phones. */ @media (max-width: 700px) { .scrolly-caption { bottom: auto; top: 0.9rem; } }