.color-lab{background:var(--paper);min-height:100vh}.color-lab-sticky-header{background:var(--paper);z-index:20;position:sticky;top:0}.color-lab-sticky-header .lesson-header{position:relative;top:auto}.color-lab .color-lesson-heading{align-items:center;height:auto;padding:20px 3vw;transition:none;display:flex}.color-lesson-heading .lesson-title-row{flex-direction:row;align-items:center;gap:16px}.color-lesson-heading .lesson-heading-back{flex:0 0 40px}.color-lab .color-lesson-heading h1{line-height:1}.color-lesson-heading h1 strong{font-weight:750}.color-lesson-heading h1 em{color:var(--acid);font-weight:400}.mixing-topic-tabs{background:var(--paper);gap:10px;padding:18px 3vw 0;display:flex}.mixing-topic-tabs button{color:#25222e;cursor:pointer;font:700 15px var(--font-geist-sans);text-align:left;background:#fff;border:1px solid #c9c5d1;border-radius:5px;flex:none;align-items:center;gap:12px;min-height:48px;padding:10px 14px;display:flex}.mixing-topic-tabs button span{color:#706b79;font:700 11px var(--font-geist-mono)}.mixing-topic-tabs button[aria-pressed=true]{color:#fff;background:#5f45d6;border-color:#5f45d6}.mixing-topic-tabs button[aria-pressed=true] span{color:#dcd5ff}.mixing-topic-tabs button:focus-visible{outline-offset:2px;outline:3px solid #5f45d659}.mixing-coming-soon{color:#eef1f8;background:#0e1420;border-radius:8px;min-height:430px;margin:24px 3vw 40px;padding:clamp(32px,6vw,80px)}.mixing-coming-soon p{color:#a797ff;font:700 12px var(--font-geist-mono);letter-spacing:.08em;text-transform:uppercase;margin:0 0 14px}.mixing-coming-soon h2{letter-spacing:-.06em;margin:0 0 22px;font-size:clamp(2.4rem,5vw,5rem)}.mixing-coming-soon span{color:#aeb7c8;font:700 12px var(--font-geist-mono);text-transform:uppercase}.rgb-lesson{max-width:1600px;margin:0 auto;padding:24px 3vw 40px}.rgb-toolbar{margin-bottom:18px}.rgb-toolbar-title{align-self:center;gap:4px;display:grid}.rgb-toolbar-title span{color:#5f45d6;font:700 11px var(--font-geist-mono);letter-spacing:.06em;text-transform:uppercase}.rgb-toolbar-title strong{font-size:18px}.rgb-workspace{grid-template-columns:minmax(0,1fr) 350px;align-items:stretch;gap:14px;display:grid}.rgb-control-column{grid-template-rows:1fr;display:grid}.rgb-stage{color:#eef1f8;background:#0e1420;border-radius:8px;position:relative;overflow:hidden}.rgb-stage-copy{box-sizing:border-box;min-height:150px;padding:28px 42px 18px}.rgb-stage-copy span{color:#a797ff;font:700 12px var(--font-geist-mono);letter-spacing:.08em}.rgb-stage-copy p{color:#eef1f8;font:18px/1.5 var(--font-geist-sans);max-width:850px;margin:12px 0 0}.rgb-stage-diagram{position:relative}.rgb-stage svg{width:100%;height:auto;display:block}.rgb-stage-kicker{fill:#a797ff;font:700 15px var(--font-geist-mono);letter-spacing:.08em}.rgb-stage-result{fill:#fff;font:700 18px var(--font-geist-sans)}.rgb-stage-detail{fill:#aeb7c8;font:15px var(--font-geist-sans)}.rgb-fader-panel{background:#e5e2d8;border:1px solid #c9c5d1;border-radius:8px;grid-template-columns:repeat(4,1fr);align-items:center;gap:5px;padding:18px 8px;display:grid}.rgb-ma3-fader-group{text-align:center;min-width:0}.rgb-ma3-fader-group .parameter-slider-label{color:#25222e;margin-bottom:4px}.rgb-ma3-fader-group>output{color:#5f45d6;font:800 13px var(--font-geist-mono);margin-bottom:7px;display:block}.rgb-ma3-fader-group .ma3-fader{width:72px;height:230px}.rgb-ma3-fader-group .ma3-fader-cap{width:46px}.rgb-ma3-fader-group .ma3-fader-cap i{width:31px}.rgb-ma3-fader-group.is-red .ma3-fader-slot{background:linear-gradient(90deg,#39161b,#ff8490 28%,#ef3e4d 50%,#771e28 76%,#271013);box-shadow:0 0 10px #ef3e4d7a}.rgb-ma3-fader-group.is-green .ma3-fader-slot{background:linear-gradient(90deg,#12321d,#84f3a7 28%,#34c96a 50%,#176c36 76%,#0d2415);box-shadow:0 0 10px #34c96a7a}.rgb-ma3-fader-group.is-blue .ma3-fader-slot{background:linear-gradient(90deg,#131b3f,#8da5ff 28%,#4f73ed 50%,#263b91 76%,#10152d);box-shadow:0 0 10px #4f73ed7a}.rgb-sine-label{justify-content:center;align-items:center;height:15px;margin-bottom:4px;display:flex}.rgb-sine-label svg{width:38px;height:15px;overflow:visible}.rgb-sine-label path{fill:none;stroke:#5f45d6;stroke-linecap:round;stroke-width:2.5px}.rgb-ma3-fader-group.is-sine .ma3-fader-slot{background:linear-gradient(90deg, color-mix(in srgb, var(--sine-color) 35%, #000), color-mix(in srgb, var(--sine-color) 68%, #fff) 28%, var(--sine-color) 50%, color-mix(in srgb, var(--sine-color) 50%, #000) 76%, color-mix(in srgb, var(--sine-color) 16%, #000));box-shadow:0 0 10px color-mix(in srgb, var(--sine-color) 48%, transparent);transition:background .12s linear,box-shadow .12s linear}.rgb-bulb-glow{filter:blur(9px)}.rgb-bulb-label{fill:#b4becd;font:700 11px var(--font-geist-mono);letter-spacing:.12em}.rgb-shadow-labels path{fill:none;stroke:#111217;stroke-linecap:round;stroke-width:1.5px}.rgb-shadow-labels text{fill:#111217;font:800 10px var(--font-geist-mono);letter-spacing:.06em}.rgb-shadow-equations text{fill:#111217;font:750 8px var(--font-geist-mono);letter-spacing:0}.rgb-shadow-equations path{fill:none;stroke:#111217;stroke-linecap:round;stroke-width:1.5px}.rgb-background-name{fill:#111217;font:800 11px var(--font-geist-mono);letter-spacing:.06em}.rgb-background-formula{fill:#111217;font:700 9px var(--font-geist-mono);letter-spacing:.05em}.rgb-swap-controls{z-index:2;gap:7px;display:flex;position:absolute;bottom:3.2%;left:41.5%}.rgb-swap-controls button{color:#c6cedb;cursor:pointer;font:700 10px var(--font-geist-mono);text-transform:uppercase;background:#171d28;border:1px solid #70798a;border-radius:3px;min-height:34px;padding:7px}.rgb-swap-controls button[aria-pressed=true]{color:#fff;background:#5f45d6;border-color:#8978e4}.rgb-swap-controls .rgb-stage-all-on{color:#fff;border-color:#8978e4}.rgb-swap-controls .rgb-stage-all-on:hover{background:#5f45d6}.rgb-swap-controls button:hover{border-color:var(--acid)}.rgb-swap-controls button:focus-visible{outline:3px solid var(--acid);outline-offset:2px}.rgb-bulb-controls{pointer-events:none;position:absolute;inset:0}.rgb-bulb-toggle{cursor:pointer;pointer-events:auto;background:0 0;border:0;border-radius:50%;width:6.2%;height:19%;padding:0;position:absolute;bottom:16.9%}.rgb-bulb-toggle.is-red{left:64.6%}.rgb-bulb-toggle.is-green{left:71%}.rgb-bulb-toggle.is-blue{left:77.3%}.rgb-bulb-toggle:hover{box-shadow:inset 0 0 0 2px #ffffff73}.rgb-bulb-toggle:focus-visible{outline:3px solid var(--acid);outline-offset:2px}.rgb-bulb path,.rgb-bulb circle,.rgb-screen,.rgb-shadow,.rgb-object rect,.rgb-object ellipse{transition:fill .2s,opacity .2s}.rgb-explanation{border-bottom:1px solid #ccc8d2;grid-template-columns:repeat(3,1fr);gap:24px;padding:24px 0;display:grid}.rgb-explanation span{color:#5f45d6;font:700 13px var(--font-geist-mono);text-transform:uppercase}.rgb-explanation p{margin:8px 0 0;font-size:16px;line-height:1.5}.gel-lesson{max-width:1600px;margin:auto;padding:24px 3vw 40px}.gel-view-toggle{flex:none;display:flex}.gel-view-toggle button{color:#4f3ca8;cursor:pointer;font:700 12px var(--font-geist-mono);text-transform:uppercase;background:0 0;border:1px solid #8573dc;min-height:36px;padding:8px 12px}.gel-view-toggle button:first-child{border-radius:5px 0 0 5px}.gel-view-toggle button:last-child{border-left:0;border-radius:0 5px 5px 0}.gel-view-toggle button[aria-pressed=true]{color:#fff;background:#5f45d6}.gel-view-toggle button:focus-visible{outline-offset:3px;z-index:1;outline:3px solid #5f45d6;position:relative}.gel-toolbar{flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:16px;margin-bottom:18px;display:flex}.gel-picker{grid-template-columns:130px repeat(7,98px);gap:7px;display:grid}.gel-picker button{color:#25222e;cursor:pointer;background:#fff;border:1px solid #c9c5d1;border-radius:5px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:52px;padding:8px;font-size:14px;font-weight:650;display:inline-flex}.gel-picker button[aria-pressed=true]{outline-offset:1px;background:#f0ecff;outline:2px solid #5f45d6}.gel-picker button:focus-visible{outline-offset:3px;outline:3px solid #5f45d6}.gel-picker i{border:1px solid #0002;border-radius:50%;width:17px;height:17px}.gel-picker button>span{text-align:left;line-height:1.05;display:grid}.gel-picker button b{font:inherit}.gel-picker button small{color:#716c78;font:600 10px var(--font-geist-mono);margin-top:4px}.clear-swatch{background:linear-gradient(135deg,#fff 44%,#999 45% 53%,#fff 54%)}.gel-stage{color:#eef1f8;background:#0e1420;border-radius:8px;overflow:hidden}.gel-diagram{perspective:1000px;position:relative}.gel-diagram svg{width:100%;height:auto;display:block}.diagram-caption{fill:#a6b2c6;font:15px sans-serif}.gel-sheet-holder{aspect-ratio:1;width:24.8%;transform-style:preserve-3d;transition:transform 1.2s ease-in-out;position:absolute;top:50%;left:51.8%;transform:translate(-50%,-50%)translateY(-12%)rotateY(0)}.gel-sheet{background:var(--gel-color);background:color-mix(in srgb, var(--gel-color) 65%, transparent);border:7px solid #aab1bd;border-radius:50%;justify-content:center;align-items:center;width:100%;height:100%;display:flex;box-shadow:0 0 0 2px #303b50,inset 0 0 30px #fff2}.gel-sheet span{color:#fff;background:#0e1420db;border-radius:3px;padding:7px 10px;font-size:16px}.phase-turning,.phase-filtered{transform:translate(-50%,-50%)rotateY(80deg)}.phase-turning .gel-sheet span,.phase-filtered .gel-sheet span{opacity:0}.spectrum-travel{animation:2s linear infinite spectrum-flow}@keyframes spectrum-flow{to{transform:translateX(var(--wave-period))}}.transmitted-band,.gel-output-wash{transition:opacity .35s}.gel-heat{pointer-events:none}.gel-heat-waves{opacity:0;transition:opacity .45s}.gel-heat-waves.is-active{opacity:1}.gel-heat-wave{animation:.9s linear infinite gel-heat-flow}.gel-heat-title{fill:#ffd49a;font:700 17px var(--font-geist-sans)}.gel-heat-copy{fill:#c5ccda;font:14px var(--font-geist-sans)}.gel-data-kicker{fill:#a797ff;font:700 12px var(--font-geist-mono);letter-spacing:.08em}.gel-data-value{fill:#fff;font:700 20px var(--font-geist-sans)}.gel-data-detail{fill:#aeb7c8;font:13px var(--font-geist-sans)}@keyframes gel-heat-flow{to{transform:translateY(-22px)}}.gel-explanation{border-bottom:1px solid #ccc8d2;grid-template-columns:repeat(3,1fr);gap:24px;padding:24px 0;display:grid}.gel-explanation span{font:700 13px var(--font-geist-mono);text-transform:uppercase;color:#5f45d6}.gel-explanation p{margin:8px 0 0;font-size:16px;line-height:1.5}.gel-model-note{color:#66616e;max-width:1000px;margin:18px 0 0;font-size:14px;line-height:1.6}.gel-model-note a{text-decoration:underline}@media (max-width:900px){.gel-picker{flex-wrap:wrap;display:flex}.gel-picker button{width:98px}.gel-picker button:first-child{width:130px}.rgb-workspace{grid-template-columns:1fr}.rgb-fader-panel{min-height:310px}}@media (max-width:650px){.color-lab .color-lesson-heading{padding:18px 14px}.color-lab .color-lesson-heading h1{white-space:nowrap;font-size:clamp(1.8rem,8vw,2.5rem)}.mixing-topic-tabs{flex-wrap:wrap;padding-inline:14px}.mixing-coming-soon{margin-inline:14px}.rgb-lesson{padding-inline:14px}.rgb-stage-copy{min-height:0;padding:22px 20px 16px}.rgb-stage-copy p{font-size:16px}.rgb-explanation,.gel-explanation{grid-template-columns:1fr;gap:16px}.gel-sheet{border-width:3px}.gel-sheet span{padding:4px;font-size:12px}.gel-lesson{padding-inline:14px}}@media (prefers-reduced-motion:reduce){.spectrum-travel,.gel-heat-wave{animation:none}.gel-sheet-holder,.transmitted-band,.gel-output-wash,.gel-heat-waves{transition:none}}