:root{--blue:#0d49b7;--red:#d82727;--ink:#1d2430;--muted:#667085;--line:#e5e7eb;--soft:#f7f9fc;--card:#fff;--shadow:0 14px 38px rgba(15,23,42,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff}button{font:inherit}img{max-width:100%;display:block}.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:10px 18px}.brand{border:0;background:transparent;display:flex;align-items:center;gap:12px;text-align:left;cursor:pointer}.brand img{width:104px}.brand strong{display:block;color:var(--blue);text-transform:uppercase;font-size:18px}.brand em{display:block;color:var(--muted);font-style:normal;font-size:13px}nav{display:flex;gap:8px;flex-wrap:wrap}nav button,.tabs button,.linkButton,.lessonTabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer;text-decoration:none;color:var(--ink)}nav button:hover,.tabs button.active,.lessonTabs button.active,.linkButton:hover{background:var(--blue);color:#fff;border-color:var(--blue)}main{max-width:1380px;margin:auto;padding:22px}.view{display:none}.view.active{display:block}.sectionHead,.wheelPanel,.colorSide,.origin,.card,.harmonyCard,.lessonContent,.lessonTabs{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.sectionHead{padding:24px;margin-bottom:18px}.sectionHead h1,.sectionHead h2{font-size:clamp(32px,4vw,56px);line-height:1;margin:0 0 10px;color:var(--blue);text-transform:uppercase}.sectionHead p:last-child{margin:0;color:var(--muted);font-size:18px}.eyebrow{color:var(--red);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:13px;margin:0 0 12px}.compact{padding:18px 22px}.wheelLayout{display:grid;grid-template-columns:minmax(380px,.9fr) minmax(460px,1.1fr);gap:18px;align-items:start}.wheelColumn{min-width:0}.wheelPanel{padding:16px}.wheelPanel.sticky{position:sticky;top:92px}.wheelWrap{position:relative;width:min(100%,700px);aspect-ratio:1/1;margin:auto;cursor:pointer}.wheelBase,.wheelIndicator{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transform-origin:center;transition:transform .28s ease}.wheelIndicator{pointer-events:none;opacity:.94}.wheelHelp{text-align:center;color:var(--muted);font-weight:700}.colorSide{padding:14px;display:grid;gap:12px}.selectedColorPanel{border:1px solid var(--line);border-radius:18px;padding:16px;display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}.chip{width:58px;height:58px;border:3px solid #111;border-radius:50%}.selectedColorPanel h3{font-size:26px;margin:0;text-transform:uppercase}.selectedColorPanel p{margin:4px 0 0;color:var(--muted)}.tabs{display:flex;gap:8px;flex-wrap:wrap}.miniTabs button{padding:7px 10px;font-size:13px}.colorDetail{display:grid;gap:14px}.featured,.card img,.harmonyCard img{background:var(--soft);border:1px solid var(--line)}.featured{border-radius:18px;overflow:hidden}.featured img{width:100%;height:auto;max-height:560px;object-fit:contain;padding:8px}.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.card{overflow:hidden;cursor:pointer;transition:.18s}.card:hover,.harmonyCard:hover,.origin:hover{transform:translateY(-2px);box-shadow:0 18px 48px rgba(15,23,42,.13)}.card img{width:100%;height:260px;object-fit:contain;padding:8px}.card div{padding:14px}.card h4{margin:0 0 8px;color:var(--blue);font-size:18px}.card p{margin:0;color:var(--muted);line-height:1.45}.origin{display:grid;grid-template-columns:minmax(280px,.8fr) 1fr;gap:22px;padding:18px;margin-bottom:20px;cursor:pointer}.origin img{border-radius:16px;border:1px solid var(--line);width:100%;height:100%;object-fit:contain;background:var(--soft)}.origin h3,.subhead{color:var(--blue);font-size:28px;margin:0 0 12px}.origin p{line-height:1.6;color:#344054}.origin blockquote{border-left:4px solid var(--red);margin:18px 0;padding:8px 0 8px 16px;font-size:20px;font-weight:700;color:#344054}.subhead{margin:24px 0 14px}.harmonyGrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(285px,1fr));gap:14px}.harmonyCard{padding:18px;cursor:pointer}.harmonyCard img{width:100%;height:300px;object-fit:contain;border-radius:14px;padding:8px;margin:12px 0}.harmonyCard h3{margin:0;color:var(--blue)}.harmonyCard small{color:var(--red);font-weight:800;text-transform:uppercase}.harmonyCard p{line-height:1.55;color:#344054}.swatches{display:flex;gap:8px;flex-wrap:wrap}.swatch{width:44px;height:44px;border-radius:10px;border:1px solid rgba(0,0,0,.15)}.learningLayout{display:grid;grid-template-columns:280px 1fr;gap:18px;align-items:start}.lessonTabs{padding:12px;display:grid;gap:9px;position:sticky;top:92px}.lessonTabs button{border-radius:12px;text-align:left}.lessonContent{padding:28px;min-height:520px}.lessonContent h3{font-size:34px;color:var(--blue);margin:0 0 16px}.lessonContent h4{color:var(--red);margin:22px 0 8px}.lessonContent p,.lessonContent li{font-size:17px;line-height:1.7;color:#344054}.lessonContent img{max-height:480px;width:100%;object-fit:contain;background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:10px;margin:18px 0}.colorMeaningGrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.meaning{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--soft)}.meaning h4{margin:0 0 6px}.source{text-align:right;color:var(--muted);font-size:14px}footer{display:flex;justify-content:center;align-items:center;gap:12px;padding:30px;color:var(--muted);text-align:center}footer img{width:54px}@media(max-width:960px){.wheelLayout,.origin,.learningLayout{grid-template-columns:1fr}.wheelPanel.sticky,.lessonTabs{position:relative;top:auto}.topbar{align-items:flex-start;flex-direction:column}.card img{height:auto;max-height:420px}}@media(max-width:560px){main{padding:12px}.sectionHead{padding:20px}.selectedColorPanel{grid-template-columns:auto 1fr}.selectedColorPanel .gallery{grid-template-columns:1fr}.brand img{width:88px}}

/* HueLens + Universal ImageColorLens */
.lensLayout,.converterLayout{display:grid;grid-template-columns:minmax(360px,.85fr) minmax(520px,1.15fr);gap:18px;align-items:start}.lensPanel,.uploadPanel,.canvasPanel{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:18px}.lensFamilyHead h3{font-size:30px;color:var(--blue);margin:0 0 6px}.lensFamilyHead p{margin:0 0 16px;color:var(--muted)}.lensSwatches{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.lensSwatch{border:1px solid var(--line);border-radius:18px;background:#fff;padding:12px;text-align:left;cursor:pointer;transition:.18s}.lensSwatch:hover,.converterSwatch:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.lensSwatchColor{height:112px;border-radius:13px;border:1px solid rgba(0,0,0,.12);margin-bottom:10px}.lensSwatch strong{display:block;font-size:18px}.lensSwatch small{display:block;color:var(--red);font-weight:800;text-transform:uppercase;margin:3px 0}.lensSwatch code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#344054;font-size:12px}.uploadDrop input{position:absolute;opacity:0;pointer-events:none}.uploadDrop label{display:grid;place-items:center;text-align:center;min-height:150px;border:2px dashed #b8c1d1;border-radius:18px;background:var(--soft);cursor:pointer;padding:20px}.uploadDrop label strong{font-size:24px;color:var(--blue)}.uploadDrop label span{color:var(--muted);margin-top:8px}.converterControls{display:grid;gap:14px;margin-top:16px}.converterControls label{font-weight:800}.converterControls select{display:block;width:100%;margin-top:7px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff}.converterSwatches{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.converterSwatch{border:2px solid transparent;background:#fff;border-radius:14px;padding:7px;cursor:pointer}.converterSwatch.active{border-color:var(--blue)}.converterSwatch i{display:block;height:52px;border-radius:9px;border:1px solid rgba(0,0,0,.12)}.converterSwatch span{display:block;font-size:11px;font-weight:800;margin-top:5px;text-align:center}.converterButtons{display:flex;gap:8px;flex-wrap:wrap}.converterButtons button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer}.converterButtons button:hover{background:var(--blue);color:#fff}.canvasPanel{min-height:520px;display:grid;place-items:center}.canvasPanel canvas{display:none;max-width:100%;height:auto;border-radius:16px;background:var(--soft)}#canvasPlaceholder{display:grid;gap:8px;text-align:center;color:var(--muted)}#canvasPlaceholder strong{font-size:28px;color:var(--blue)}.converterSelection{width:100%;margin-top:12px;text-align:center;color:#344054}.lensNote{color:var(--muted);font-size:13px;margin:16px 4px}.swatchModal{position:fixed;inset:0;z-index:80;background:rgba(15,23,42,.72);display:none;place-items:center;padding:24px}.swatchModal.open{display:grid}.modalCard{background:#fff;border-radius:24px;padding:18px;width:min(620px,92vw);text-align:center;box-shadow:0 24px 80px rgba(0,0,0,.28)}.modalColor{height:min(58vh,460px);border-radius:18px;border:1px solid rgba(0,0,0,.12)}.modalCard h3{font-size:30px;color:var(--blue);margin:16px 0 6px}.modalCard p{color:var(--muted);margin:0}.modalClose{position:fixed;right:24px;top:20px;border:0;background:#fff;width:44px;height:44px;border-radius:50%;font-size:30px;cursor:pointer}@media(max-width:960px){.lensLayout,.converterLayout{grid-template-columns:1fr}.lensSwatches{grid-template-columns:1fr 1fr}}@media(max-width:560px){.lensSwatches{grid-template-columns:1fr}.converterSwatches{grid-template-columns:repeat(2,1fr)}}

/* HueLens refinements: circular color image, explicit enlarge control, and mixed-case labels on Pages 2–3. */
#huelens .sectionHead h2,#imagecolorlens .sectionHead h2,#huelens .eyebrow,#imagecolorlens .eyebrow,#huelens .lensSwatch small,#imagecolorlens .converterSwatch span{text-transform:none}
.lensSwatch{cursor:default;text-align:center}
.lensSwatchCircle{width:112px;height:112px;border-radius:50%;border:2px solid rgba(0,0,0,.16);margin:0 auto 12px;cursor:zoom-in;box-shadow:inset 0 0 0 4px rgba(255,255,255,.3)}
.lensSwatchCircle:focus{outline:3px solid var(--blue);outline-offset:3px}
.enlargeSwatchBtn{display:inline-block;margin-top:10px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;cursor:pointer;font-weight:700}
.enlargeSwatchBtn:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* Harmonious Color Schemes expanded learning experience */
.harmonyPosterCard{display:grid;grid-template-columns:minmax(240px,430px) 1fr;gap:28px;align-items:center;margin:0 auto 34px;padding:24px;border:1px solid #d8d8d8;border-radius:22px;background:#fff;box-shadow:0 12px 34px rgba(0,0,0,.08)}
.harmonyPosterCard img{width:100%;max-height:640px;object-fit:contain;border-radius:14px;background:#111;cursor:zoom-in}.harmonyPosterCard h3{font-size:1.7rem;margin:.25rem 0 .7rem}.harmonyPosterCard p{line-height:1.6}.lessonOpenBtn,.lessonModalControls button{border:0;border-radius:999px;padding:10px 16px;background:#171717;color:#fff;font-weight:700;cursor:pointer}.schemeHelp{text-align:center;margin:-8px 0 20px;color:#555}.harmonyCard{cursor:pointer;position:relative}.harmonyCard.lessonAvailable::after{content:'Click to open lesson';display:inline-block;margin-top:8px;padding:6px 10px;border-radius:999px;background:#171717;color:#fff;font-size:.78rem;font-weight:700}.harmonyCard:focus{outline:3px solid #3baee8;outline-offset:3px}
.harmonyLessonModal{position:fixed;inset:0;z-index:1200;background:rgba(0,0,0,.88);display:none;overflow:auto;padding:24px}.harmonyLessonModal.open{display:block}.harmonyLessonShell{max-width:1180px;margin:0 auto;background:#f6f6f6;border-radius:22px;padding:20px;min-height:calc(100vh - 48px)}.lessonModalTop{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.lessonModalTop h2{margin:.1rem 0 1rem}.lessonModalClose{width:46px;height:46px;border:0;border-radius:50%;font-size:2rem;line-height:1;background:#171717;color:#fff;cursor:pointer}.harmonyLessonPages{display:flex;justify-content:center;align-items:flex-start;gap:18px;min-height:65vh}.harmonyLessonPage{display:none;max-width:100%;max-height:72vh;object-fit:contain;background:#fff;box-shadow:0 6px 24px rgba(0,0,0,.18);cursor:zoom-in}.harmonyLessonPage.active{display:block}.harmonyLessonPage.enlarged{max-height:none;width:auto;max-width:none}.lessonModalControls{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin-top:18px}.lessonModalControls span{min-width:90px;text-align:center;font-weight:700}
@media (min-width:900px){.harmonyLessonPages.twoPage .harmonyLessonPage{display:block;max-width:48%;max-height:72vh}.harmonyLessonPages.twoPage .harmonyLessonPage.enlarged{max-width:none}}
@media (max-width:760px){.harmonyPosterCard{grid-template-columns:1fr}.harmonyLessonModal{padding:8px}.harmonyLessonShell{padding:12px;min-height:calc(100vh - 16px)}.harmonyLessonPage{max-height:none;width:100%}.lessonModalControls button{font-size:.85rem;padding:9px 12px}}

/* Final harmony lesson navigation: display one lesson page at a time on every screen size. */
.harmonyLessonPages.twoPage .harmonyLessonPage{display:none;max-width:100%;max-height:72vh}
.harmonyLessonPages.twoPage .harmonyLessonPage.active{display:block}