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#e8b6504d;border-radius:11px;gap:5px;margin-top:9px;padding:9px;display:grid}.roots-fun-fact-head{color:var(--roots-accent);letter-spacing:.1em;justify-content:space-between;align-items:center;gap:8px;font:600 8px/1.2 DM Mono,monospace;display:flex}.roots-fun-fact-head small{color:var(--roots-dim);letter-spacing:.08em;font-size:7px}.roots-fun-fact p{color:var(--roots-ink);margin:0;font:600 11px/1.35 Space Grotesk,sans-serif}.roots-fun-fact-detail{color:var(--roots-muted);font-size:9px;line-height:1.35}.roots-fun-fact-actions{flex-wrap:wrap;gap:6px;display:flex}.roots-fun-fact-actions a{color:var(--roots-accent);background:0 0;border:1px solid #e8b6504d;border-radius:999px;padding:4px 6px;font-size:9px;text-decoration:none;transition:background .2s,border-color .2s,color .2s,transform .2s}:is(.roots-fun-fact-actions a:hover,.roots-fun-fact-actions 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Arial,sans-serif;display:inline-grid}.roots-login-divider{color:var(--roots-dim);letter-spacing:.1em;text-transform:uppercase;align-items:center;gap:11px;margin:22px 0;font:10px/1 DM Mono,monospace;display:flex}.roots-login-divider:before,.roots-login-divider:after{content:"";background:var(--roots-line);flex:1;height:1px}.roots-login-form{gap:14px;display:grid}.roots-login-form label{color:var(--roots-ink);gap:7px;font-size:12px;font-weight:700;display:grid}.roots-login-form input{border:1px solid var(--roots-line-strong);width:100%;min-height:45px;color:var(--roots-ink);background:#0f1b1ab8;border-radius:9px;outline:0;padding:0 12px;font-size:13px}.roots-login-form input::placeholder{color:var(--roots-dim)}.roots-login-form input:focus{border-color:var(--roots-accent);box-shadow:0 0 0 3px var(--roots-accent-soft)}.roots-login-field-note,.roots-login-footnote{color:var(--roots-dim);margin:-3px 0 0;font-size:11px;line-height:1.45}.roots-login-submit{width:100%;margin-top:3px}.roots-login-submit:disabled{cursor:wait;opacity:.6;transform:none}.roots-login-error,.roots-login-notice{border-left:2px solid var(--roots-accent);color:var(--roots-ink);background:var(--roots-accent-soft);margin:0;padding:11px 12px;font-size:12px;line-height:1.45}.roots-login-notice{background:#8fbf931f;border-left-color:#8fbf93}.roots-login-footnote{border-top:1px solid var(--roots-line);text-align:center;margin-top:21px;padding-top:17px}.roots-menu-button{border:1px solid var(--roots-line-strong);color:var(--roots-ink);background:0 0;border-radius:999px;justify-self:end;padding:9px 12px;display:none}.roots-hero{grid-template-columns:minmax(0,.8fr) minmax(420px,1.2fr);align-items:center;gap:clamp(44px,7vw,120px);width:min(1400px,100%);min-height:calc(100dvh - 72px);margin:0 auto;padding:64px clamp(20px,5vw,80px) 72px;display:grid}.roots-hero-copy{max-width:600px}.roots-eyebrow{color:var(--roots-accent);letter-spacing:.15em;text-transform:uppercase;margin:0 0 22px;font:600 11px/1.2 DM Mono,monospace}.roots-hero h1{max-width:none;color:var(--roots-ink);letter-spacing:-.07em;margin:0;font:600 clamp(54px,7vw,102px)/.94 Space Grotesk,sans-serif}.roots-hero h1 span{white-space:nowrap;display:block}.roots-hero-lede{max-width:440px;color:var(--roots-muted);margin:28px 0 0;font-size:clamp(17px,1.6vw,21px);line-height:1.5}.roots-hero-actions,.roots-form-actions{flex-wrap:wrap;align-items:center;gap:12px;margin-top:32px;display:flex}.roots-button{border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;min-height:46px;padding:0 18px;font-size:13px;font-weight:700;text-decoration:none;transition:transform .25s cubic-bezier(.16,1,.3,1),background .25s,color .25s,border-color .25s;display:inline-flex}:is(.roots-button:hover,.roots-button:focus-visible){transform:translateY(-2px)}.roots-button:active{transform:translateY(0)scale(.98)}.roots-button-primary{color:var(--roots-accent-ink);background:var(--roots-accent)}:is(.roots-button-primary:hover,.roots-button-primary:focus-visible){background:#f2c86b}.roots-button-secondary,.roots-button-quiet{border-color:var(--roots-line-strong);color:var(--roots-ink);background:0 0}:is(.roots-button-secondary:hover,.roots-button-secondary:focus-visible,.roots-button-quiet:hover,.roots-button-quiet:focus-visible){border-color:var(--roots-accent);background:var(--roots-accent-soft)}.roots-hero-media{border:1px solid var(--roots-line);background:var(--roots-surface);border-radius:18px;min-height:560px;margin:0;position:relative;overflow:hidden;box-shadow:0 22px 70px #040c0a40}.roots-hero-media img{object-fit:cover;object-position:center;width:100%;height:100%;min-height:560px;display:block}.roots-hero-media figcaption{max-width:210px;color:var(--roots-ink);background:#0f1b1ab8;border:1px solid #f4efe533;border-radius:8px;padding:8px 10px;font:11px/1.35 DM Mono,monospace;position:absolute;bottom:16px;right:18px}.roots-thesis,.roots-coach-section,.roots-hardware,.roots-loop,.roots-close{width:min(1200px,100%);margin:0 auto;padding:clamp(84px,12vw,160px) clamp(20px,5vw,64px)}.roots-thesis{border-top:1px solid var(--roots-line);grid-template-columns:minmax(0,1.25fr) minmax(240px,.75fr);align-items:end;gap:clamp(40px,10vw,150px);display:grid}.roots-thesis h2,.roots-section-heading h2,.roots-hardware h2,.roots-loop h2,.roots-close h2{max-width:750px;color:var(--roots-ink);letter-spacing:-.055em;margin:0;font:500 clamp(36px,5vw,66px)/1.02 Space Grotesk,sans-serif}.roots-thesis-copy p,.roots-section-heading>p:last-child,.roots-hardware-copy>p,.roots-loop-heading p,.roots-close-copy>p{max-width:550px;color:var(--roots-muted);margin:22px 0 0;font-size:17px;line-height:1.55}.roots-thesis-quote{border-left:2px solid var(--roots-accent);max-width:360px;color:var(--roots-ink);margin:0;padding-left:24px;font:500 clamp(21px,2.5vw,30px)/1.25 Space Grotesk,sans-serif}.roots-coach-section{border-top:1px solid var(--roots-line);scroll-margin-top:92px}.roots-section-heading{max-width:760px}.roots-section-heading .roots-eyebrow{margin-bottom:20px}.roots-coach-demo{grid-template-columns:minmax(190px,.38fr) minmax(0,1fr);gap:30px;margin-top:55px;display:grid}.roots-prompt-list{border-top:1px solid var(--roots-line);align-self:start}.roots-prompt-button{border:0;border-bottom:1px solid var(--roots-line);width:100%;min-height:72px;color:var(--roots-muted);text-align:left;background:0 0;justify-content:space-between;align-items:center;gap:20px;padding:0 12px;transition:color .25s,padding .25s,background .25s;display:flex}:is(.roots-prompt-button:hover,.roots-prompt-button:focus-visible,.roots-prompt-button.is-active){color:var(--roots-ink);background:var(--roots-accent-soft);padding-left:18px}.roots-prompt-arrow{color:var(--roots-accent);font-size:21px;font-weight:400}.roots-coach-panel{border:1px solid var(--roots-line-strong);background:var(--roots-surface);border-radius:16px;min-width:0;padding:clamp(20px,4vw,36px)}.roots-panel-topline,.roots-editor-toolbar,.roots-lens-picker{color:var(--roots-dim);letter-spacing:.1em;text-transform:uppercase;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font:10px/1.4 DM Mono,monospace;display:flex}.roots-coach-message{max-width:660px;margin:46px 0 30px}.roots-speaker{color:var(--roots-accent);letter-spacing:.1em;text-transform:uppercase;font:600 11px/1.2 DM Mono,monospace}.roots-coach-message h3{color:var(--roots-ink);letter-spacing:-.04em;margin:12px 0 0;font:500 clamp(27px,4vw,48px)/1.08 Space Grotesk,sans-serif}.roots-coach-message p{color:var(--roots-dim);margin:14px 0 0;font-size:13px}.roots-editor-preview{border:1px solid var(--roots-line);background:#101b1a;border-radius:10px;margin:0 0 25px;overflow:hidden}.roots-editor-toolbar{border-bottom:1px solid var(--roots-line);padding:11px 14px}.roots-code-row{color:#c7d2c9;border-bottom:1px solid #dce8dc14;grid-template-columns:34px minmax(0,1fr);align-items:center;min-height:39px;font:13px/1.5 DM Mono,monospace;display:grid}.roots-code-row:last-child{border-bottom:0}.roots-code-row>span{color:#668078;padding-left:14px}.roots-code-row code{white-space:pre;min-width:0;padding:8px 14px 8px 0;overflow-x:auto}.roots-code-row mark{color:var(--roots-accent-ink);background:var(--roots-accent);border-radius:4px;padding:1px 4px}.roots-coach-form label{color:var(--roots-ink);margin-bottom:8px;font-size:13px;font-weight:700;display:block}.roots-coach-form textarea{resize:vertical;border:1px solid var(--roots-line-strong);width:100%;min-height:92px;color:var(--roots-ink);background:#0f1b1aa6;border-radius:9px;outline:0;padding:13px 14px;font-size:14px;line-height:1.5}.roots-coach-form textarea::placeholder{color:var(--roots-dim)}.roots-coach-form textarea:focus{border-color:var(--roots-accent);box-shadow:0 0 0 3px var(--roots-accent-soft)}.roots-form-actions{margin-top:14px}.roots-form-actions .roots-button{min-height:40px}.roots-hint,.roots-feedback{border-left:2px solid var(--roots-accent);color:var(--roots-muted);background:var(--roots-accent-soft);margin:16px 0 0;padding:12px 14px;font-size:13px;line-height:1.5}.roots-feedback{color:var(--roots-ink)}.roots-lens-picker{border-top:1px solid var(--roots-line);text-transform:none;letter-spacing:0;justify-content:flex-start;margin-top:25px;padding-top:18px}.roots-lens-picker>span{color:var(--roots-dim);margin-right:4px}.roots-lens-picker button{color:var(--roots-muted);background:0 0;border:1px solid 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#e4b34fd9;position:absolute;top:10%;bottom:10%;left:50%}.pid-line-robot{background:var(--pid-mint);width:56px;height:42px;transform:translate(-50%, -50%) rotate(var(--pid-robot-tilt));border:2px solid #1b2824;border-radius:12px;transition:left .2s,transform .2s;position:absolute;top:44%;box-shadow:0 4px 11px #00000040}.pid-robot-sensor{background:var(--pid-amber);border:2px solid #15211e;border-radius:4px;width:13px;height:8px;position:absolute;bottom:-9px;left:21px}.pid-robot-eye{background:#17231f;border-radius:50%;width:7px;height:7px;position:absolute;top:10px;left:16px;box-shadow:17px 0 #17231f}.pid-robot-wheel-one,.pid-robot-wheel-two{background:#516a60;border:2px solid #101916;border-radius:50%;width:15px;height:15px;position:absolute;bottom:-6px}.pid-robot-wheel-one{left:3px}.pid-robot-wheel-two{right:3px}.pid-line-label{color:#101918bf;letter-spacing:.08em;font:600 9px/1 DM 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1fr;gap:12px;margin-top:10px;padding:13px;display:grid}.pid-human-p-card div{gap:7px;display:grid}.pid-human-p-card strong{color:var(--pid-muted);font-size:12px;line-height:1.35}.pid-combine-content,.pid-tune-content{gap:22px;display:grid}.pid-mode-switch{border:1px solid var(--pid-line-strong);border-radius:999px;justify-self:start;gap:3px;padding:3px;display:inline-flex}.pid-mode-switch button{color:var(--pid-muted);cursor:pointer;background:0 0;border:0;border-radius:999px;padding:9px 13px;font-size:12px}.pid-mode-switch button.is-selected{color:#161a16;background:var(--pid-amber);font-weight:700}.pid-mode-intro{border:1px solid var(--pid-line);background:#09121459;border-radius:11px;grid-template-columns:minmax(0,1fr) minmax(220px,.7fr);align-items:center;gap:22px;padding:17px;display:grid}.pid-mode-intro>div>span{color:var(--pid-mint);letter-spacing:.1em;font:600 9px/1.2 DM Mono,monospace}.pid-mode-intro code{color:var(--pid-amber);background:var(--pid-bg-deep);white-space:pre-wrap;padding:13px;font:11px/1.5 DM Mono,monospace;display:block;overflow:auto}.pid-loop-map{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.pid-loop-step{border:1px solid var(--pid-line);background:#ffffff04;border-radius:9px;min-height:108px;padding:13px;position:relative}.pid-loop-step:not(:last-child):after{border-top:1px solid var(--pid-amber);content:"";width:15px;position:absolute;top:23px;right:-8px}.pid-loop-step>span{color:#151a16;background:var(--pid-amber);border-radius:50%;place-items:center;width:19px;height:19px;font:600 9px/1 DM Mono,monospace;display:grid}.pid-loop-step strong{color:var(--pid-ink);margin-top:12px;font-size:12px;line-height:1.2;display:block}.pid-loop-step small{color:var(--pid-dim);margin-top:5px;font-size:10px;line-height:1.35;display:block}.pid-signal-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;display:grid}.pid-signal-card{border:1px solid var(--pid-line);background:#ffffff05;border-radius:11px;min-width:0;padding:16px}.pid-signal-title{align-items:center;gap:9px;display:flex}.pid-signal-title>span{width:27px;height:27px;color:var(--pid-bg-deep);border-radius:50%;place-items:center;font:700 13px/1 DM Mono,monospace;display:grid}.pid-signal-p .pid-signal-title>span{background:var(--pid-coral)}.pid-signal-i .pid-signal-title>span{background:var(--pid-amber)}.pid-signal-d .pid-signal-title>span{background:var(--pid-blue)}.pid-signal-title strong{color:var(--pid-ink);font-size:12px}.pid-signal-card h3{color:var(--pid-ink);margin:16px 0 0;font-size:15px;line-height:1.15}.pid-signal-card p{min-height:54px;color:var(--pid-muted);margin:8px 0 0;font-size:11px;line-height:1.45}.pid-signal-meter{background:#ffffff17;border-radius:99px;height:5px;margin:17px 0 8px;overflow:hidden}.pid-signal-meter i{border-radius:inherit;background:var(--pid-amber);height:100%;transition:width .28s;display:block}.pid-signal-p .pid-signal-meter i{background:var(--pid-coral)}.pid-signal-d .pid-signal-meter i{background:var(--pid-blue)}.pid-signal-card>small{color:var(--pid-dim);font:9px/1.25 DM Mono,monospace}.pid-structure-note{border:1px solid var(--pid-line);background:#070f116b;border-radius:11px;grid-template-columns:minmax(0,.9fr) minmax(240px,.7fr);gap:24px;padding:18px;display:grid}.pid-structure-note h3{color:var(--pid-ink);margin:9px 0 0;font-size:18px;line-height:1.15}.pid-structure-note p{color:var(--pid-muted);margin:9px 0 0;font-size:12px;line-height:1.45}.pid-structure-note pre{color:var(--pid-mint);background:var(--pid-bg-deep);margin:0;padding:15px;font:10px/1.55 DM Mono,monospace;overflow:auto}.pid-next-button{color:var(--pid-ink);background:0 0;justify-self:start;padding:12px 17px}.pid-tune-layout{grid-template-columns:minmax(230px,.64fr) minmax(0,1fr);align-items:start;gap:25px;display:grid}.pid-tune-controls{gap:18px;display:grid}.pid-tune-intro{border-bottom:1px solid var(--pid-line);padding-bottom:8px}.pid-gain-row{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:5px 12px;display:grid}.pid-gain-row>span{color:var(--pid-muted);font-size:12px}.pid-gain-row>span b{color:var(--pid-amber);margin-right:8px;font:700 11px/1 DM Mono,monospace}.pid-gain-row>strong{color:var(--pid-ink);font:600 12px/1 DM Mono,monospace}.pid-gain-row input{width:100%;accent-color:var(--pid-amber);grid-column:1/-1}.pid-run-button{border-color:var(--pid-amber);color:#171b17;background:var(--pid-amber);justify-self:start;padding:12px 16px;font-weight:700}:is(.pid-run-button:hover,.pid-run-button:focus-visible,.pid-check-button:hover,.pid-check-button:focus-visible){background:#f0c96c;transform:translateY(-2px)}.pid-run-result{border-left:3px solid var(--pid-mint);background:#8ac3a214;padding:12px}.pid-run-result strong{color:var(--pid-ink);margin-top:6px;font-size:13px;display:block}.pid-run-result small{color:var(--pid-muted);margin-top:5px;font-size:10px;line-height:1.4;display:block}.pid-tune-chart{border:1px solid var(--pid-line);background:#0710128c;border-radius:11px;min-width:0;padding:17px}.pid-chart-area{border-bottom:1px solid var(--pid-line-strong);background:repeating-linear-gradient(#0000 0 50px,#c1d3c614 51px);height:260px;margin-top:17px;position:relative;overflow:hidden}.pid-chart-target{border-top:1px dashed #8ac3a2cc;position:absolute;bottom:26%;left:0;right:0}.pid-chart-bars{align-items:end;gap:8px;height:92%;display:flex;position:absolute;bottom:0;left:3%;right:3%}.pid-chart-bars i{background:linear-gradient(180deg, var(--pid-amber), #e4b34f2b);transform-origin:bottom;border-radius:4px 4px 0 0;flex:1;min-width:4px;animation:1.5s ease-out both pid-chart-rest;display:block}.pid-tune-chart.is-running .pid-chart-bars i{animation-name:pid-chart-run;animation-duration:1.1s;animation-delay:calc(var(--pid-index,0) * 28ms)}.pid-chart-zero{color:var(--pid-mint);font:9px/1 DM Mono,monospace;position:absolute;bottom:calc(26% + 7px);right:6px}.pid-chart-caption{color:var(--pid-dim);justify-content:space-between;gap:8px;margin-top:11px;font:9px/1.3 DM Mono,monospace;display:flex}.pid-chart-caption strong{color:var(--pid-muted);text-align:center;font-weight:400}.pid-code-mission{border:1px solid var(--pid-line-strong);background:#e4b34f0e;border-radius:12px;grid-template-columns:minmax(0,.92fr) minmax(250px,.78fr);gap:26px;padding:20px;display:grid}.pid-code-scaffold{border-left:2px solid var(--pid-amber);background:#070f117a;gap:7px;margin-top:17px;padding:13px;font:10px/1.5 DM Mono,monospace;display:grid}.pid-code-scaffold span{color:var(--pid-dim)}.pid-code-scaffold code{color:var(--pid-muted);white-space:pre-wrap}.pid-code-scaffold b,.pid-code-scaffold em{color:var(--pid-amber);font-style:normal}.pid-code-input-wrap{align-content:start;gap:11px;display:grid}.pid-code-input-wrap label{gap:7px;display:grid}.pid-code-input-wrap label>span{color:var(--pid-muted);letter-spacing:.1em;font:600 9px/1 DM Mono,monospace}.pid-code-input-wrap textarea{resize:vertical;border:1px solid var(--pid-line-strong);min-height:95px;color:var(--pid-ink);background:var(--pid-bg-deep);border-radius:8px;padding:12px;font:11px/1.5 DM Mono,monospace}.pid-code-input-wrap textarea::placeholder{color:var(--pid-dim)}.pid-check-button{border-color:var(--pid-amber);color:#171b17;background:var(--pid-amber);justify-self:start;padding:10px 14px;font-weight:700}.pid-code-feedback{border-left:3px solid var(--pid-coral);color:var(--pid-muted);background:#e8897217;gap:5px;padding:11px;font-size:11px;line-height:1.4;display:grid}.pid-code-feedback strong{color:var(--pid-coral);letter-spacing:.1em;font:700 9px/1 DM Mono,monospace}.pid-code-feedback.is-accepted{border-left-color:var(--pid-mint);background:#8ac3a21a}.pid-code-feedback.is-accepted strong,.pid-code-feedback.is-accepted span{color:var(--pid-mint)}.pid-tuning-principles{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.pid-tuning-principles>div{border-top:2px solid var(--pid-line-strong);padding:14px}.pid-tuning-principles>div:first-child{border-color:var(--pid-coral)}.pid-tuning-principles>div:nth-child(2){border-color:var(--pid-amber)}.pid-tuning-principles>div:nth-child(3){border-color:var(--pid-blue)}.pid-tuning-principles strong{color:var(--pid-ink);margin-top:8px;font-size:13px;line-height:1.25;display:block}.pid-tuning-principles small{color:var(--pid-muted);margin-top:7px;font-size:11px;line-height:1.4;display:block}@keyframes pid-chart-rest{0%{opacity:.35;transform:scaleY(.2)}to{opacity:1;transform:scaleY(1)}}@keyframes pid-chart-run{0%{opacity:.35;transform:scaleY(.2)}55%{opacity:1;transform:scaleY(1.06)}to{opacity:.88;transform:scaleY(.7)}}.pid-reflection{grid-template-columns:minmax(0,.8fr) minmax(0,1fr);align-items:start;gap:42px clamp(40px,9vw,130px);width:min(1320px,100%);margin:0 auto;padding:clamp(86px,11vw,150px) 0 80px;display:grid}.pid-reflection-lead h2{max-width:570px;color:var(--pid-ink);letter-spacing:-.055em;margin:13px 0 0;font-size:clamp(34px,5vw,62px);line-height:.98}.pid-reflection-lead p{max-width:460px;color:var(--pid-muted);margin:19px 0 0;font-size:15px;line-height:1.55}.pid-application-list{border-top:1px solid var(--pid-line);gap:0;display:grid}.pid-application-list>div{border-bottom:1px solid var(--pid-line);grid-template-columns:42px minmax(0,1fr);gap:13px;padding:18px 0;display:grid}.pid-application-list span{color:var(--pid-amber);font:600 10px/1.2 DM Mono,monospace}.pid-application-list strong{color:var(--pid-ink);font-size:15px;line-height:1.35}.pid-source-row{border-top:1px solid var(--pid-line);flex-wrap:wrap;grid-column:1/-1;align-items:center;gap:12px 20px;padding-top:28px;display:flex}.pid-source-row a{color:var(--pid-muted);font:10px/1.3 DM Mono,monospace;text-decoration:none}.pid-source-row a:hover{color:var(--pid-amber)}.pid-companion{z-index:20;pointer-events:none;align-items:end;gap:11px;display:flex;position:fixed;bottom:18px;right:clamp(14px,3vw,34px)}.pid-companion-pet{cursor:pointer;background:radial-gradient(circle at 36% 25%,#e4f2dd 0 4%,#aacbb4 5% 15%,#547667 16% 39%,#243f3d 40% 100%);border:1px solid #8ac3a28c;border-radius:50%;flex:0 0 69px;width:69px;height:69px;padding:0;animation:4.6s ease-in-out infinite pid-companion-bob;position:relative;box-shadow:0 12px 30px #0000004d}.pid-pet-antenna{background:var(--pid-amber);width:1px;height:17px;position:absolute;top:-13px;left:34px}.pid-pet-antenna:after{content:"";background:var(--pid-amber);width:7px;height:7px;box-shadow:0 0 12px var(--pid-amber);border-radius:50%;position:absolute;top:-3px;left:-3px}.pid-pet-face{background:#d9ebd0;border:2px solid #14201d;border-radius:12px 12px 9px 9px;width:31px;height:23px;position:absolute;top:22px;left:19px}.pid-pet-face i{background:#15211d;border-radius:50%;width:4px;height:4px;position:absolute;top:7px}.pid-pet-face i:first-child{left:7px}.pid-pet-face i:nth-child(2){right:7px}.pid-pet-face b{background:#58776b;border-radius:2px;height:2px;position:absolute;bottom:4px;left:8px;right:8px}.pid-pet-wheel{background:var(--pid-amber);border:2px solid #101916;border-radius:50%;width:11px;height:11px;position:absolute;bottom:10px}.pid-pet-wheel-left{left:8px}.pid-pet-wheel-right{right:8px}.pid-companion-panel{pointer-events:auto;background:#122220f7;border:1px solid #8ac3a261;border-radius:13px 13px 4px;width:min(310px,100vw - 108px);padding:14px 15px;display:none;box-shadow:0 14px 38px #0000004d}.pid-companion.is-open .pid-companion-panel{gap:9px;animation:.25s both pid-companion-in;display:grid}.pid-companion-heading{justify-content:space-between;gap:10px;display:flex}.pid-companion-heading b{color:var(--pid-mint);font:600 9px/1.2 DM Mono,monospace}.pid-companion-panel>p{color:var(--pid-muted);margin:0;font-size:12px;line-height:1.45}.pid-companion-fact{border-top:1px solid var(--pid-line);gap:6px;padding-top:9px;display:grid}.pid-companion-fact strong{color:var(--pid-ink);font-size:12px;line-height:1.3}.pid-companion-fact small{color:var(--pid-muted);font-size:10px;line-height:1.35}.pid-companion-fact a{color:var(--pid-amber);font:600 9px/1.3 DM Mono,monospace;text-decoration:none}.pid-companion-actions{flex-wrap:wrap;gap:7px;display:flex}.pid-companion-actions button{color:var(--pid-muted);background:0 0;padding:7px 10px;font:600 9px/1.2 DM Mono,monospace}:is(.pid-companion-actions button:hover,.pid-companion-actions button:focus-visible){border-color:var(--pid-amber);color:var(--pid-amber)}.pid-companion:not(.is-open) .pid-companion-pet{pointer-events:auto}.pid-companion:not(.is-open) .pid-companion-pet:after{border:2px solid var(--pid-bg);content:"+";color:#101916;background:var(--pid-amber);text-align:center;border-radius:50%;width:15px;height:15px;font:700 12px/11px Arial,sans-serif;position:absolute;bottom:-3px;right:-4px}@keyframes pid-companion-bob{0%,to{transform:translateY(0)rotate(-1deg)}50%{transform:translateY(-6px)rotate(1deg)}}@keyframes pid-companion-in{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}.pid-footer{border-top:1px solid var(--pid-line);width:min(1320px,100%);color:var(--pid-dim);justify-content:space-between;gap:20px;margin:0 auto;padding-top:18px;font:10px/1.35 DM Mono,monospace;display:flex}.pid-footer nav{flex-wrap:wrap;gap:16px;display:flex}.pid-footer a{color:var(--pid-muted);text-decoration:none}.pid-footer a:hover{color:var(--pid-amber)}@media (max-width:1080px){.pid-hero{grid-template-columns:minmax(0,1fr) minmax(300px,.78fr);gap:42px}.pid-lesson{grid-template-columns:190px minmax(0,1fr);gap:28px}.pid-chapter-panel{padding:28px}.pid-notice-content{gap:28px}}@media (max-width:820px){.pid-topbar{grid-template-columns:auto 1fr}.pid-topbar-label{text-align:right}.pid-topbar nav{display:none}.pid-hero{grid-template-columns:1fr;padding-top:70px}.pid-hero-copy{max-width:700px}.pid-hero-visual{max-width:680px}.pid-industrial-scene{min-height:300px}.pid-lesson{grid-template-columns:1fr}.pid-progress-rail{padding:0;position:static}.pid-progress-line{display:none}.pid-progress-heading{max-width:680px}.pid-progress-steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:13px}.pid-progress-step{border:1px solid var(--pid-line);border-radius:9px;grid-template-columns:24px minmax(0,1fr);padding:10px}.pid-progress-step small{grid-column:1/-1;padding-top:4px}.pid-progress-note{display:none}.pid-chapter-heading{grid-template-columns:1fr;gap:14px}.pid-notice-content,.pid-tune-layout,.pid-reflection{grid-template-columns:1fr}.pid-story-copy{grid-template-columns:repeat(2,minmax(0,1fr))}.pid-small-beat{grid-column:1/-1}.pid-loop-map{grid-template-columns:repeat(2,minmax(0,1fr))}.pid-loop-step:not(:last-child):after{display:none}.pid-signal-grid{grid-template-columns:1fr}.pid-signal-card p{min-height:auto}.pid-code-mission,.pid-structure-note{grid-template-columns:1fr}.pid-reflection{gap:32px;padding-top:90px}.pid-source-row{grid-column:auto}}@media (max-width:560px){.pid-page{padding-left:14px;padding-right:14px}.pid-topbar{font-size:9px}.pid-topbar-label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.pid-hero{padding-top:55px;padding-bottom:68px}.pid-hero 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1fr}.pid-loop-step{min-height:118px;padding:11px}.pid-human-p-card,.pid-readout-row,.pid-tuning-principles{grid-template-columns:1fr}.pid-code-mission{padding:15px}.pid-chart-area{height:210px}.pid-chart-bars{gap:4px}.pid-reflection{padding-top:70px}.pid-footer{flex-direction:column;align-items:start;padding-bottom:24px}.pid-companion{bottom:11px;right:11px}.pid-companion-panel{width:min(252px,100vw - 91px)}}@media (prefers-reduced-motion:reduce){.pid-page *,.pid-page :before,.pid-page :after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}.pid-companion-panel{overscroll-behavior:contain;max-height:min(72vh,620px);overflow-y:auto}.pid-companion-coach{border-top:1px solid var(--pid-line);gap:8px;padding-top:10px;display:grid}.pid-companion-coach-label{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.pid-companion-coach-label span{color:var(--pid-amber);letter-spacing:.1em;font:600 9px/1.2 DM Mono,monospace}.pid-companion-coach-label small{color:var(--pid-dim);font-size:9px}.pid-companion-quick{flex-wrap:wrap;gap:6px;display:flex}.pid-companion-quick button{color:var(--pid-muted);cursor:pointer;background:#8ac3a20d;border:1px solid #8ac3a252;border-radius:999px;padding:6px 8px;font:600 8px/1.2 DM Mono,monospace}:is(.pid-companion-quick button:hover,.pid-companion-quick button:focus-visible){border-color:var(--pid-mint);color:var(--pid-ink)}.pid-companion-quick button:disabled,.pid-companion-form button:disabled{cursor:wait;opacity:.55}.pid-companion-transcript{gap:7px;max-height:190px;padding:2px 2px 2px 0;display:grid;overflow-y:auto}.pid-companion-message{border-left:2px solid var(--pid-line-strong);background:#ffffff06;gap:3px;padding:7px 8px;display:grid}.pid-companion-message.is-coach{border-color:var(--pid-mint);background:#8ac3a212}.pid-companion-message span{color:var(--pid-amber);letter-spacing:.1em;font:600 8px/1.2 DM Mono,monospace}.pid-companion-message p{color:var(--pid-muted);white-space:pre-wrap;margin:0;font-size:10px;line-height:1.42}.pid-companion-error{border-left:2px solid var(--pid-coral);color:#f1b4a3;background:#e8897214;margin:0;padding:7px 8px;font-size:10px;line-height:1.35}.pid-companion-form{grid-template-columns:minmax(0,1fr) max-content;align-items:end;gap:6px;display:grid}.pid-companion-form textarea{resize:vertical;border:1px solid var(--pid-line-strong);width:100%;min-height:42px;color:var(--pid-ink);background:#040c0e80;border-radius:8px;outline:0;padding:8px;font:10px/1.35 DM Mono,monospace}.pid-companion-form textarea::placeholder{color:var(--pid-dim)}.pid-companion-form textarea:focus{border-color:var(--pid-amber);box-shadow:0 0 0 2px #e4b34f1f}.pid-companion-form button{border:1px solid var(--pid-amber);color:#171b17;background:var(--pid-amber);cursor:pointer;border-radius:8px;padding:9px 10px;font:700 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code{color:var(--pid-amber);font:600 .95em DM Mono,monospace}.pid-p-question{background:#e4b34f12;border:1px solid #e4b34f57;border-radius:11px;gap:10px;padding:17px;display:grid}.pid-p-question strong{color:var(--pid-ink);font-size:17px;line-height:1.2}.pid-p-question>div{flex-wrap:wrap;gap:7px;display:flex}.pid-p-question button,.pid-p-scale-buttons button,.pid-p-linear-controls button,.pid-p-coefficient-bar button{border:1px solid var(--pid-line-strong);color:var(--pid-muted);cursor:pointer;background:0 0;border-radius:999px;padding:9px 11px;font:600 10px/1.2 DM Mono,monospace;transition:border-color .2s,color .2s,background .2s,transform .2s}:is(.pid-p-question button:hover,.pid-p-question button:focus-visible,.pid-p-scale-buttons button:hover,.pid-p-scale-buttons button:focus-visible,.pid-p-linear-controls button:hover,.pid-p-linear-controls button:focus-visible,.pid-p-coefficient-bar button:hover,.pid-p-coefficient-bar button:focus-visible){border-color:var(--pid-amber);color:var(--pid-amber);transform:translateY(-1px)}.pid-p-question button.is-selected,.pid-p-scale-buttons button.is-selected,.pid-p-linear-controls button.is-selected,.pid-p-coefficient-bar button.is-selected{border-color:var(--pid-amber);color:#171b17;background:var(--pid-amber)}.pid-p-question small{color:var(--pid-muted);font-size:11px;line-height:1.45}.pid-p-question small b{color:var(--pid-amber);font-weight:600}.pid-p-run-heading-row{justify-content:space-between;gap:14px;padding-top:2px;display:flex}.pid-p-run-heading-row b,.pid-p-wave-heading b{color:var(--pid-dim);letter-spacing:.08em;font:600 9px/1.2 DM Mono,monospace}.pid-p-runs{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.pid-p-run{border:1px solid var(--pid-line);background:#07101273;border-radius:11px;min-width:0;padding:14px}.pid-p-run.is-aggressive{border-color:#e889726b}.pid-p-run.is-gentle{border-color:#8ac3a26b}.pid-p-run-heading,.pid-p-wave-heading{justify-content:space-between;gap:10px;display:flex}.pid-p-run-heading span{color:var(--pid-muted);letter-spacing:.1em;font:600 9px/1.2 DM Mono,monospace}.pid-p-run-heading b{color:var(--pid-amber);font:600 10px/1.2 DM Mono,monospace}.pid-p-run-scene{background:#d1d2bd;border-radius:8px;height:184px;margin-top:12px;position:relative;overflow:hidden}.pid-p-run-scene:after{content:"";pointer-events:none;background:linear-gradient(115deg,#0000,#ffffff24,#0000);animation:4.8s linear infinite pid-p-scene-glint;position:absolute;inset:0}.pid-p-line-course{background:linear-gradient(#d8d9c6 0 39%,#252e2c 39% 61%,#c7ccb9 61%);position:absolute;inset:0}.pid-p-line-edge{background:#101816;height:5px;position:absolute;top:50%;left:-5%;right:-5%;transform:translateY(-50%);box-shadow:0 0 12px #080f0e9e}.pid-p-gyro-course{background:linear-gradient(#d9ddd0 0%,#91a99a 48%,#172322 100%);position:absolute;inset:0;overflow:hidden}.pid-p-gyro-course:after{content:"";clip-path:polygon(32% 0,68% 0,100% 100%,0 100%);background:linear-gradient(90deg,#09141429,#192c28a6,#09141429);height:110%;position:absolute;bottom:-17%;left:28%;right:28%}.pid-p-gyro-center{z-index:1;background:repeating-linear-gradient(#e4b34fcc 0 17px,#0000 17px 34px);width:2px;position:absolute;top:0;bottom:0;left:50%}.pid-p-gyro-edge{z-index:1;transform-origin:bottom;background:#c1d3c65c;width:1px;position:absolute;top:0;bottom:0}.pid-p-gyro-edge-left{left:30%;transform:rotate(12deg)}.pid-p-gyro-edge-right{right:30%;transform:rotate(-12deg)}.pid-p-mini-robot{z-index:2;background:var(--pid-mint);transform-origin:50% 75%;border:2px solid #17231f;border-radius:7px;width:49px;height:34px;position:absolute;top:52%;left:50%;box-shadow:0 5px 10px #00000047}.pid-p-run-line .pid-p-mini-robot{animation:pid-p-line-wobble var(--pid-p-run-duration) ease-in-out infinite}.pid-p-run-gyro .pid-p-mini-robot{animation:pid-p-gyro-wobble var(--pid-p-run-duration) ease-in-out infinite}.pid-p-mini-robot:before{content:"";background:#16221f;border-radius:50%;width:5px;height:5px;position:absolute;top:7px;left:10px;box-shadow:17px 0 #16221f}.pid-p-mini-robot i{background:#4f6e62;border:2px solid #101916;border-radius:50%;width:11px;height:11px;position:absolute;bottom:-7px}.pid-p-mini-robot i:first-child{left:4px}.pid-p-mini-robot i:nth-child(2){right:4px}.pid-p-mini-robot b{content:"";background:var(--pid-amber);border-radius:2px;width:8px;height:7px;position:absolute;bottom:5px;right:-7px}.pid-p-run-target{z-index:2;color:#101a17a6;letter-spacing:.09em;font:600 9px/1 DM Mono,monospace;position:absolute;top:13px;right:13px}.pid-p-run-readout{z-index:3;border-top:1px solid #0f19172e;justify-content:space-between;align-items:baseline;gap:8px;padding-top:8px;display:flex;position:absolute;bottom:11px;left:12px;right:12px}.pid-p-run-readout strong{color:#18231f;letter-spacing:.08em;font:700 10px/1 DM Mono,monospace}.pid-p-run-readout span{color:#2d3e37;font:9px/1.2 DM Mono,monospace}.pid-p-run>p{color:var(--pid-muted);margin:10px 0 0;font-size:11px;line-height:1.4}@keyframes pid-p-line-wobble{0%,to{translate:calc(var(--pid-p-run-wiggle) * -1) 0;rotate:calc(var(--pid-p-run-tilt) * -1)}25%{translate:var(--pid-p-run-wiggle) 4px;rotate:var(--pid-p-run-tilt)}50%{translate:calc(var(--pid-p-run-wiggle) * -.65) -3px;rotate:calc(var(--pid-p-run-tilt) * -.7)}75%{translate:calc(var(--pid-p-run-wiggle) * .65) 2px;rotate:calc(var(--pid-p-run-tilt) * .8)}}@keyframes pid-p-gyro-wobble{0%,to{translate:calc(var(--pid-p-run-wiggle) * -.42) 30px;rotate:calc(var(--pid-p-run-tilt) * -1);scale:.76}50%{translate:var(--pid-p-run-wiggle) -24px;rotate:var(--pid-p-run-tilt);scale:1.08}}@keyframes pid-p-scene-glint{0%{translate:-120%}to{translate:120%}}.pid-p-stage-footer{border-top:1px solid var(--pid-line);gap:8px;padding-top:16px;display:grid}.pid-p-stage-footer strong{max-width:700px;color:var(--pid-ink);font-size:15px;line-height:1.35}.pid-p-stage-footer .pid-next-button{margin-top:4px}.pid-p-scale-lab{border:1px solid var(--pid-line-strong);background:#07101273;border-radius:11px;grid-template-columns:minmax(0,.82fr) minmax(260px,1fr);gap:20px;padding:17px;display:grid}.pid-p-scale-copy{align-content:start;gap:9px;display:grid}.pid-p-scale-copy h3{color:var(--pid-ink);margin:0;font-size:21px;line-height:1.1}.pid-p-scale-copy p{color:var(--pid-muted);margin:0;font-size:12px;line-height:1.5}.pid-p-scale-buttons{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.pid-p-scale-copy code{color:var(--pid-mint);background:var(--pid-bg-deep);margin-top:6px;padding:11px;font:11px/1.3 DM Mono,monospace;display:block}.pid-p-scale-stage{border:1px solid var(--pid-line);background:radial-gradient(circle at 50% 50%, #8ac3a21a, transparent 38%), var(--pid-bg-deep);border-radius:8px;min-height:230px;position:relative;overflow:hidden}.pid-p-scale-grid{opacity:.45;background:repeating-linear-gradient(90deg,#0000 0 32px,#c1d3c612 33px),repeating-linear-gradient(#0000 0 32px,#c1d3c612 33px);position:absolute;inset:0}.pid-p-scale-robot{border:3px solid var(--pid-mint);background:#8ac3a240;border-radius:12px;width:82px;height:56px;transition:transform .55s cubic-bezier(.22,.8,.28,1);position:absolute;top:50%;left:50%;box-shadow:0 0 30px #8ac3a224}.pid-p-scale-robot:before{content:"";background:var(--pid-mint);width:8px;height:8px;box-shadow:32px 0 var(--pid-mint);border-radius:50%;position:absolute;top:15px;left:17px}.pid-p-scale-robot i{background:var(--pid-amber);border:3px solid #15221e;border-radius:50%;width:21px;height:21px;position:absolute;bottom:-12px}.pid-p-scale-robot i:first-child{left:7px}.pid-p-scale-robot i:nth-child(2){right:7px}.pid-p-scale-robot b{background:var(--pid-amber);width:13px;height:10px;position:absolute;bottom:12px;right:-12px}.pid-p-scale-label{color:var(--pid-dim);letter-spacing:.1em;text-transform:uppercase;font:9px/1 DM Mono,monospace;position:absolute;bottom:12px;right:13px}.pid-p-source-note{border-top:1px solid var(--pid-line);border-bottom:1px solid var(--pid-line);grid-template-columns:auto minmax(0,1fr);align-items:start;gap:14px;padding:14px 0;display:grid}.pid-p-source-note p{color:var(--pid-muted);margin:0;font-size:11px;line-height:1.5}.pid-p-source-note a,.pid-p-proportion-note a{color:var(--pid-amber);text-decoration:none}.pid-p-source-note a:hover,.pid-p-proportion-note a:hover{text-decoration:underline}.pid-p-linear-lab{border:1px solid var(--pid-line-strong);background:#07101273;border-radius:11px;grid-template-columns:minmax(170px,.38fr) minmax(0,1fr);gap:18px;padding:17px;display:grid}.pid-p-linear-controls{align-content:center;gap:10px;display:grid}.pid-p-linear-controls>div{flex-wrap:wrap;gap:6px;display:flex}.pid-p-linear-controls strong{color:var(--pid-ink);font:700 23px/1 DM Mono,monospace}.pid-p-linear-controls small{color:var(--pid-muted);font-size:11px}.pid-p-linear-graph{border:1px solid var(--pid-line);background:repeating-linear-gradient(90deg,#0000 0 41px,#c1d3c612 42px),repeating-linear-gradient(#0000 0 41px,#c1d3c612 42px);border-radius:8px;min-height:255px;position:relative;overflow:hidden}.pid-p-linear-axis{z-index:1;background:#c1d3c657;display:block;position:absolute}.pid-p-linear-axis-x{height:1px;top:50%;left:0;right:0}.pid-p-linear-axis-y{width:1px;top:0;bottom:0;left:50%}.pid-p-linear-line{background:var(--pid-amber);transform-origin:0;width:141%;height:3px;transform:rotate(var(--pid-p-line-angle));border-radius:99px;animation:.75s ease-out both 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var(--pid-amber);background:var(--pid-amber-soft);gap:9px;padding:17px;display:grid}.pid-p-equation strong{color:var(--pid-ink);font:700 16px/1.25 DM Mono,monospace}.pid-p-equation small{color:var(--pid-muted);font-size:11px;line-height:1.4}.pid-p-coefficient-bar{border-top:1px solid var(--pid-line);border-bottom:1px solid var(--pid-line);flex-wrap:wrap;align-items:center;gap:7px;padding:11px 0;display:flex}.pid-p-coefficient-bar>span{margin-right:auto}.pid-p-wave-card{border:1px solid var(--pid-line);background:#07101273;border-radius:11px;padding:15px}.pid-p-wave-chart{border:1px solid var(--pid-line);background:repeating-linear-gradient(#0000 0 41px,#c1d3c612 42px);border-radius:8px;height:170px;margin-top:12px;position:relative;overflow:hidden}.pid-p-wave-zero{background:#c1d3c659;height:1px;position:absolute;top:50%;left:0;right:0}.pid-p-wave{position:absolute;inset:0}.pid-p-wave i{transform-origin:0;border-radius:99px;width:2.6%;height:3px;position:absolute}.pid-p-wave-aggressive i{background:#8bbad2;box-shadow:0 0 6px #8bbad24d}.pid-p-wave-scaled i{background:#e88972;box-shadow:0 0 6px #e889724d}.pid-p-wave span{color:var(--pid-dim);letter-spacing:.08em;font:9px/1 DM Mono,monospace;position:absolute;right:10px}.pid-p-wave-aggressive span{top:15px}.pid-p-wave-scaled span{top:32px}.pid-p-wave-aggressive{animation:3.3s ease-in-out infinite pid-p-wave-breathe}.pid-p-wave-scaled{animation:1.8s ease-in-out infinite reverse pid-p-wave-breathe}.pid-p-wave-card p{color:var(--pid-muted);margin:11px 0 0;font-size:11px;line-height:1.45}.pid-p-wave-card p strong:first-child{color:#8bbad2}.pid-p-wave-card p strong:last-child{color:#e88972}@keyframes pid-p-wave-breathe{0%,to{opacity:.75;translate:0 1px}50%{opacity:1;translate:0 -1px}}.pid-p-promise{background:#8ac3a214;border:1px solid #8ac3a257;gap:8px;padding:16px;display:grid}.pid-p-promise strong{max-width:700px;color:var(--pid-ink);font-size:16px;line-height:1.35}.pid-p-promise small{color:var(--pid-muted);font-size:11px;line-height:1.45}@media (max-width:820px){.pid-p-stage-lead,.pid-p-scale-lab,.pid-p-linear-lab{grid-template-columns:1fr}.pid-p-progress{grid-template-columns:repeat(2,minmax(0,1fr))}.pid-p-linear-graph{min-height:220px}}@media (max-width:560px){.pid-p-runs,.pid-p-progress{grid-template-columns:1fr}.pid-p-run-heading-row,.pid-p-proportion-note{flex-direction:column;align-items:start}.pid-p-source-note{grid-template-columns:1fr}.pid-p-coefficient-bar{flex-direction:column;align-items:start}.pid-p-coefficient-bar>span{margin-right:0}.pid-p-run-scene{height:165px}.pid-p-stage-lead h3{font-size:27px}}.pid-page .pid-next-button:disabled{border-color:var(--pid-line);color:var(--pid-dim);cursor:not-allowed;opacity:.58;background:0 0;transform:none}.pid-problem-content,.pid-principles-content{gap:24px;padding-top:31px;display:grid}.pid-problem-content{grid-template-columns:minmax(220px,.72fr) 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#00000040}.pid-problem-robot:after{border:2px solid var(--pid-coral);content:"";background:0 0;border-radius:50%;width:10px;height:10px;position:absolute;bottom:3px;right:-7px}.pid-problem-robot i{background:#16211d;border-radius:50%;width:5px;height:5px;position:absolute;top:9px}.pid-problem-robot i:first-child{left:12px}.pid-problem-robot i:nth-child(2){left:28px}.pid-problem-robot b{background:var(--pid-amber);border:2px solid #14201b;border-radius:4px;width:11px;height:7px;position:absolute;bottom:-8px;left:18px}.pid-problem-signal{color:var(--pid-coral);letter-spacing:.1em;font:600 9px/1 DM Mono,monospace;animation:2.2s ease-in-out infinite pid-signal-flash;position:absolute;top:17%;left:21%;transform:rotate(-8deg)}.pid-problem-signal-two{animation-delay:-.9s;top:72%;left:65%}@keyframes pid-problem-wobble{0%,to{translate:-12px;rotate:-6deg}50%{translate:13px 4px;rotate:14deg}}@keyframes pid-signal-flash{0%,to{opacity:.35}50%{opacity:1}}.pid-problem-ladder{border-top:1px solid 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pid-target-run-label{0%,65%{opacity:0;transform:translateY(3px)}72%,88%{opacity:1;transform:translateY(0)}96%,to{opacity:0;transform:translateY(-2px)}}@media (max-width:560px){.pid-problem-options{grid-template-columns:1fr}.pid-problem-option{min-height:0}.pid-target-run-scene{min-height:184px}}@media (prefers-reduced-motion:reduce){.pid-target-run,.pid-target-run-label,.pid-problem-signal,.pid-problem-robot{animation:none}.pid-target-run{left:var(--pid-run-end);opacity:.8}.pid-target-run-label{opacity:1;transform:none}}.pid-trial-content,.pid-error-content,.pid-correction-content{gap:22px;display:grid}.pid-trial-lead,.pid-error-lead,.pid-correction-lead{grid-template-columns:minmax(0,1fr) minmax(230px,.62fr);align-items:start;gap:28px;display:grid}.pid-trial-lead h3,.pid-error-lead h3,.pid-correction-lead h3{color:var(--pid-ink);letter-spacing:-.04em;margin:9px 0 0;font-size:clamp(23px,3.2vw,34px);line-height:1.06}.pid-trial-lead p,.pid-error-lead p,.pid-correction-lead 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small{color:var(--pid-muted);font-size:11px;line-height:1.45}@keyframes pid-baby-walk{0%,10%{left:12%;transform:translateY(0)rotate(-4deg)}30%{left:35%;transform:translateY(2px)rotate(6deg)}43%{left:47%;transform:translateY(12px)rotate(-11deg)}57%{left:57%;transform:translateY(-1px)rotate(4deg)}82%,to{left:78%;transform:translateY(0)rotate(0)}}@keyframes pid-baby-arm-left{to{transform:rotate(-35deg)}}@keyframes pid-baby-arm-right{to{transform:rotate(28deg)}}@keyframes pid-baby-leg-left{to{transform:rotate(-19deg)}}@keyframes pid-baby-leg-right{to{transform:rotate(22deg)}}@keyframes pid-walking-attempt{0%,15%,to{opacity:0;transform:translateY(4px)}28%,58%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(-3px)}}.pid-error-equation{min-height:126px}.pid-error-equation strong{color:var(--pid-ink);font:600 clamp(17px,2vw,23px)/1.15 DM Mono,monospace}.pid-error-examples{grid-template-columns:1fr 1fr;gap:10px;display:grid}.pid-error-example{border-top:2px solid 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button:hover,.pid-answer-options button:focus-visible,.pid-answer-options button.is-selected){border-color:var(--pid-amber);background:var(--pid-amber-soft)}.pid-answer-options strong{color:var(--pid-ink);font:600 17px/1 DM Mono,monospace}.pid-answer-options small{color:var(--pid-dim);font:9px/1 DM Mono,monospace}.pid-answer-feedback{border-left:3px solid var(--pid-coral);background:#e8897214;padding:10px}.pid-answer-feedback.is-correct{border-left-color:var(--pid-mint);background:#8ac3a214}.pid-answer-feedback strong{color:var(--pid-ink);font-size:11px;display:block}.pid-answer-feedback small{color:var(--pid-muted);margin-top:4px;font-size:10px;line-height:1.35;display:block}.pid-error-note{border-left:3px solid var(--pid-amber);background:var(--pid-amber-soft);gap:6px;padding:14px;display:grid}.pid-error-note strong{color:var(--pid-ink);font-size:14px}.pid-error-note small{color:var(--pid-muted);font-size:11px;line-height:1.4}.pid-correction-rule 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17px;animation:3.8s ease-in-out infinite pid-steering-sway;position:absolute;bottom:26%;left:50%;box-shadow:0 10px 18px #00000047}.pid-steering-car:before,.pid-steering-car:after{content:"";background:#17241f;border-radius:6px;width:38px;height:7px;position:absolute;left:13px}.pid-steering-car:before{top:15px}.pid-steering-car:after{bottom:15px}.pid-car-window{background:#8bb8d194;border:2px solid #1c302a;border-radius:11px;width:42px;height:27px;position:absolute;top:31px;left:11px}.pid-steering-car i{background:#41584d;border:2px solid #0c1515;border-radius:8px;width:14px;height:25px;position:absolute;bottom:-8px}.pid-steering-car i:nth-last-child(2){left:5px}.pid-steering-car i:last-child{right:5px}.pid-steering-wheel{width:86px;height:86px;transform:rotate(var(--pid-steering-correction));background:#070f116b;border:9px solid #c1d3c68c;border-radius:50%;animation:3.8s ease-in-out infinite pid-steering-wheel;position:absolute;top:26px;right:14%;box-shadow:inset 0 0 0 2px #e4b34f4d}.pid-steering-wheel i{background:var(--pid-amber);transform-origin:8px 2px;border-radius:4px;width:16px;height:5px;position:absolute;top:31px;left:31px}.pid-steering-wheel i:first-of-type{transform:rotate(30deg)}.pid-steering-wheel i:nth-of-type(2){transform:rotate(150deg)}.pid-steering-wheel span{background:var(--pid-amber);border-radius:50%;width:18px;height:18px;position:absolute;top:30px;left:30px}.pid-steering-hand{transform-origin:50% 100%;background:#e3bc8a;border:2px solid #17211b;border-radius:9px;width:13px;height:43px;position:absolute;top:15px}.pid-steering-hand-left{left:-13px;transform:rotate(31deg)}.pid-steering-hand-right{right:-13px;transform:rotate(-31deg)}.pid-steering-drift-label,.pid-steering-correction-label{border:1px solid var(--pid-line);color:var(--pid-ink);letter-spacing:.08em;background:#10191cd6;border-radius:5px;padding:6px 8px;font:600 9px/1 DM Mono,monospace;position:absolute}.pid-steering-drift-label{color:var(--pid-coral);top:47%;left:11%}.pid-steering-correction-label{color:var(--pid-mint);bottom:22%;right:11%}.pid-steering-caption{color:var(--pid-muted);text-align:center;font:10px/1.35 DM Mono,monospace;position:absolute;bottom:14px;left:14px;right:14px}@keyframes pid-steering-sway{0%,to{transform:translateX(-50%) rotate(calc(var(--pid-steering-drift) * .6))}50%{transform:translateX(-50%) rotate(var(--pid-steering-drift))}}@keyframes pid-steering-wheel{0%,to{transform:rotate(calc(var(--pid-steering-correction) * .6))}50%{transform:rotate(var(--pid-steering-correction))}}.pid-correction-workbench input[type=range]{width:100%;accent-color:var(--pid-amber)}.pid-correction-scale{color:var(--pid-dim);justify-content:space-between;font:9px/1 DM Mono,monospace;display:flex}.pid-correction-scale strong{color:var(--pid-amber)}.pid-correction-formula{border-top:1px solid var(--pid-line);border-bottom:1px solid var(--pid-line);grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;padding:13px 0;display:grid}.pid-correction-formula div{gap:5px;display:grid}.pid-correction-formula small{color:var(--pid-dim);letter-spacing:.1em;font:600 9px/1 DM Mono,monospace}.pid-correction-formula strong{color:var(--pid-ink);font:600 19px/1 DM Mono,monospace}.pid-correction-formula span{color:var(--pid-muted);font-size:10px}.pid-correction-formula>b{color:var(--pid-amber);font-size:17px}@media (max-width:820px){.pid-trial-lead,.pid-error-lead,.pid-correction-lead{grid-template-columns:1fr;gap:18px}.pid-trial-grid,.pid-steering-grid,.pid-error-examples{grid-template-columns:1fr}}@media (max-width:560px){.pid-walking-scene,.pid-steering-scene{min-height:235px}.pid-trial-workbench,.pid-correction-workbench{padding:14px}.pid-steering-wheel{transform:scale(.82) rotate(var(--pid-steering-correction));right:9%}.pid-steering-drift-label{left:7%}.pid-steering-correction-label{right:7%}.pid-error-example{padding:14px}}@media (prefers-reduced-motion:reduce){.pid-baby,.pid-baby-arm,.pid-baby-leg,.pid-walking-attempt,.pid-steering-car,.pid-steering-wheel{animation:none}.pid-baby{left:73%;transform:none}.pid-steering-car{transform:translateX(-50%) rotate(var(--pid-steering-drift))}.pid-steering-wheel{transform:rotate(var(--pid-steering-correction))}}.pid-line-intro-content{gap:20px}.pid-line-intro-copy{align-content:start;gap:20px;display:grid}.pid-light-lesson{border:1px solid var(--pid-line);background:#07101261;border-radius:11px;gap:12px;padding:15px;display:grid}.pid-light-lesson>span{color:var(--pid-amber);letter-spacing:.12em;font:600 9px/1.2 DM Mono,monospace}.pid-light-lesson>p{color:var(--pid-muted);margin:0;font-size:11px;line-height:1.48}.pid-light-diagram{grid-template-columns:1fr 1fr;gap:8px;display:grid}.pid-light-diagram>div{border:1px solid var(--pid-line);background:#ffffff06;border-radius:8px;min-height:145px;padding:12px;position:relative;overflow:hidden}.pid-light-diagram>div>strong{color:var(--pid-ink);letter-spacing:.1em;font:600 9px/1 DM Mono,monospace;position:absolute;bottom:12px;right:10px}.pid-light-diagram>div>small{color:var(--pid-muted);text-align:right;font:9px/1.35 DM Mono,monospace;position:absolute;bottom:28px;right:10px}.pid-light-surface{border-radius:3px;height:25px;position:absolute;bottom:19px;left:10%;right:10%}.pid-light-surface-black{background:#0b1215;box-shadow:0 0 0 1px #e8897229}.pid-light-surface-white{background:#dfe6d6;box-shadow:0 0 0 1px #e4b34f52}.pid-light-ray,.pid-light-return{background:var(--pid-coral);width:2px;position:absolute;left:33%;box-shadow:0 0 10px #e88972cc}.pid-light-ray{height:91px;top:12px}.pid-light-return{transform-origin:bottom;height:40px;bottom:43px}.pid-light-return-low{opacity:.28;transform:rotate(7deg)}.pid-light-return-high{opacity:1;transform:rotate(-5deg)}.pid-question-callout b{color:var(--pid-amber);margin-top:12px;font-size:12px;line-height:1.35;display:block}.pid-question-callout small+b+small{margin-top:5px}.pid-line-course{background:linear-gradient(#dfe5d4 0%,#c7d0bd 100%);border:1px solid #c1d3c629;border-radius:9px;min-height:306px;margin:21px 0 13px;position:relative;overflow:hidden}.pid-line-course:before{content:"";pointer-events:none;background:repeating-linear-gradient(0deg,#10191809 0 3px,#0000 3px 7px);position:absolute;inset:0}.pid-course-straight{background:#11191a;border-radius:10px;width:51%;height:18px;position:absolute;top:59%;left:5%;transform:rotate(-3deg);box-shadow:0 2px #080d0d59}.pid-course-curve{border:18px solid #11191a;border-color:#11191a #11191a #0000 #0000;border-radius:52%;width:48%;height:55%;position:absolute;top:25%;left:42%;transform:rotate(-17deg)}.pid-course-curve-inner{border-width:6px;border-color:#e4b34f59 #e4b34f59 #0000 #0000;width:30%;height:38%;top:38%;left:51%;transform:rotate(-17deg)}.pid-course-robot{z-index:3;background:var(--pid-mint);border:2px solid #15211d;border-radius:11px;width:55px;height:40px;animation:9s ease-in-out infinite pid-line-course-drive;position:absolute;top:56%;left:6%;transform:translate(-50%,-50%)rotate(-3deg);box-shadow:0 5px 12px #00000047}.pid-course-robot:before{content:"";background:#17231f;border-radius:50%;width:6px;height:6px;position:absolute;top:9px;left:15px;box-shadow:17px 0 #17231f}.pid-course-robot:after{content:"";background:var(--pid-amber);border:2px solid #15211d;border-radius:50%;width:9px;height:9px;position:absolute;bottom:5px;right:-6px}.pid-course-robot .pid-robot-wheel-one,.pid-course-robot .pid-robot-wheel-two{width:14px;height:14px;bottom:-7px}.pid-red-beam{background:var(--pid-coral);width:2px;height:47px;position:absolute;bottom:-43px;left:50%;transform:translate(-50%);box-shadow:0 0 11px #e88972f2}.pid-red-spot{top:65%;left:var(--pid-reflection-left);z-index:4;border:2px solid var(--pid-coral);width:25px;height:25px;box-shadow:0 0 0 6px #e8897214, 0 0 16px rgba(232,137,114,var(--pid-reflection-strength));background:#e889722e;border-radius:50%;transition:left .25s,box-shadow .25s;position:absolute;transform:translate(-50%,-50%)}.pid-course-label{z-index:2;color:#101918b8;letter-spacing:.09em;font:600 9px/1 DM Mono,monospace;position:absolute}.pid-course-label-edge{color:#76602a;top:35%;left:57%}.pid-course-caption{color:#101918bd;text-align:center;font:10px/1.35 DM Mono,monospace;position:absolute;bottom:13px;left:13px;right:13px}.pid-reflection-observation{border-left:3px solid var(--pid-coral);background:#e8897214;grid-template-columns:125px minmax(0,1fr);align-items:center;gap:12px;padding:12px;display:grid}.pid-reflection-observation div{gap:5px;display:grid}.pid-reflection-observation small{color:var(--pid-dim);letter-spacing:.1em;font:600 8px/1 DM Mono,monospace}.pid-reflection-observation strong{color:var(--pid-ink);font:600 12px/1.1 DM Mono,monospace}.pid-reflection-observation p{color:var(--pid-muted);margin:0;font-size:11px;line-height:1.4}.pid-line-edge-guide{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-top:8px;display:grid}.pid-line-edge-guide>div{border-top:2px solid var(--pid-line-strong);gap:5px;padding:10px;display:grid}.pid-line-edge-guide>div:first-child{border-color:var(--pid-coral)}.pid-line-edge-guide>div:nth-child(2){border-color:var(--pid-amber)}.pid-line-edge-guide>div:nth-child(3){border-color:var(--pid-mint)}.pid-line-edge-guide span{color:var(--pid-dim);letter-spacing:.08em;font:600 8px/1.1 DM Mono,monospace}.pid-line-edge-guide strong{color:var(--pid-ink);font-size:11px;line-height:1.2}.pid-line-edge-guide small{color:var(--pid-muted);font-size:10px;line-height:1.35}@keyframes pid-line-course-drive{0%,10%{top:55%;left:18%;transform:translate(-50%,-50%)rotate(-1deg)}20%{top:52%;left:30%;transform:translate(-50%,-50%)rotate(1deg)}38%{top:49%;left:42%;transform:translate(-50%,-50%)rotate(-1deg)}56%{top:44%;left:55%;transform:translate(-50%,-50%)rotate(1deg)}70%{top:39%;left:67%;transform:translate(-50%,-50%)rotate(0)}82%{top:44%;left:75%;transform:translate(-50%,-50%)rotate(-1deg)}91%,to{top:55%;left:82%;transform:translate(-50%,-50%)rotate(1deg)}}@media (max-width:560px){.pid-light-diagram{grid-template-columns:1fr}.pid-light-diagram>div{min-height:122px}.pid-line-course{min-height:255px}.pid-line-edge-guide{grid-template-columns:1fr}.pid-reflection-observation{grid-template-columns:1fr;gap:7px}}@media (prefers-reduced-motion:reduce){.pid-course-robot{animation:none;top:49%;left:48%;transform:translate(-50%,-50%)rotate(-12deg)}.pid-red-spot{transition:none}}.pid-red-spot{width:22px;height:22px;opacity:var(--pid-reflection-strength);transition:opacity .25s,box-shadow .25s;top:auto;bottom:-54px;left:50%}.pid-line-course{background:linear-gradient(#c7d5c6 0%,#9bad9d 31%,#708477 31%,#53665d 100%);min-height:350px}.pid-course-horizon{border-top:1px solid #10191847;position:absolute;top:31%;left:0;right:0;box-shadow:0 14px 20px #1019181c}.pid-course-surface{clip-path:polygon(8% 0,92% 0,100% 100%,0 100%);background:linear-gradient(#8c9f8e 0%,#66796b 36%,#45594f 100%);position:absolute;inset:31% 0 0;overflow:hidden}.pid-course-surface:before{content:"";transform-origin:top;background:repeating-linear-gradient(#e0e8d41c 0 1px,#0000 1px 24px),linear-gradient(90deg,#0000 0 49%,#e0e8d414 49.2% 49.5%,#0000 49.7% 100%);position:absolute;inset:0;transform:perspective(360px)rotateX(32deg)scale(1.35)}.pid-course-surface-grain{opacity:.28;background:radial-gradient(circle at 20% 20%,#ffffff29 0 1px,#0000 1.5px) 0 0/32px 25px,radial-gradient(circle at 70% 62%,#0a14122e 0 1px,#0000 1.5px) 0 0/41px 31px;position:absolute;inset:0}.pid-course-black-line{background:linear-gradient(#0b1213 0%,#11191a 58%,#1d2726 100%);border-radius:45% 48% 38% 42%;width:118%;height:31%;position:absolute;top:39%;left:-9%;transform:rotate(-2deg)skew(-5deg);box-shadow:0 5px 12px #060c0b61,inset 0 8px 12px #0003}.pid-course-black-line:after{content:"";background:#45594e7a;height:2px;position:absolute;inset:22% 0 auto;box-shadow:0 42px #45594e42,0 83px #45594e2b}.pid-course-robot{width:188px;height:112px;box-shadow:none;background:url(/pid-line-follower-robot.png) 50%/contain no-repeat;border:0;border-radius:0;animation:18s ease-in-out infinite pid-line-course-drive;top:43%;left:12%}.pid-course-robot:before,.pid-course-robot:after{display:none}.pid-course-robot{filter:drop-shadow(0 7px 5px #070f0d59)}.pid-red-beam{background:var(--pid-coral);transform-origin:top;height:82px;top:77%;bottom:auto;left:87%;transform:translate(-50%)rotate(2deg);box-shadow:0 0 12px #e88972eb}.pid-red-spot{width:29px;height:20px;opacity:var(--pid-reflection-strength);background:#f4534933;border:2px solid #f0645d;top:151px;bottom:auto;left:87%;transform:translate(-50%,-50%)rotate(-2deg);box-shadow:0 0 0 6px #e8897214,0 0 19px #e88972cc}.pid-red-spot i{content:"";border:1px solid #f86d5dad;border-radius:50%;animation:3.4s ease-in-out infinite pid-reflection-halo;position:absolute;inset:-7px}.pid-course-label-black{top:65%;left:14%}.pid-course-caption{bottom:11px}.pid-surface-marker{z-index:2;color:#e9f0ddb3;letter-spacing:.08em;font:600 8px/1 DM Mono,monospace;position:absolute}.pid-surface-marker-dark{top:76%;left:17%}.pid-surface-marker-edge{color:var(--pid-amber);top:56%;left:48%}@keyframes pid-reflection-halo{0%,to{opacity:.45;transform:scale(.72)}50%{opacity:1;transform:scale(1.28)}}@media (max-width:560px){.pid-line-course{min-height:320px}.pid-course-robot{width:155px;height:94px}.pid-red-beam{height:67px}.pid-red-spot{top:130px}.pid-course-label{font-size:8px}.pid-surface-marker{font-size:7px}}@media (prefers-reduced-motion:reduce){.pid-course-robot{animation:none;top:43%;left:48%;transform:translate(-50%,-50%)rotate(0)}.pid-red-spot i{opacity:.72;animation:none;transform:scale(.9)}}.pid-line-course{background:#fff;border-color:#131f1d33;min-height:350px}.pid-line-course:before{background:repeating-linear-gradient(0deg,#131f1d06 0 2px,#0000 2px 8px)}.pid-course-horizon{box-shadow:none;border-color:#131f1d29;top:28%}.pid-course-surface{clip-path:none;background:#fff;inset:28% 0 0;overflow:hidden}.pid-course-surface:before{background:repeating-linear-gradient(#131f1d0a 0 1px,#0000 1px 24px),linear-gradient(90deg,#0000 0 49%,#131f1d06 49.2% 49.5%,#0000 49.7% 100%);transform:none}.pid-course-surface-grain{opacity:.12}.pid-course-black-line{background:#080d0e;border-radius:3px;width:92%;height:24%;top:54%;left:4%;transform:none;box-shadow:0 4px #080d0d33,inset 0 3px #ffffff09}.pid-course-black-line:after{display:none}.pid-course-robot{width:188px;height:112px;animation:20s ease-in-out infinite pid-line-course-drive;top:55%;left:18%}.pid-red-spot{border-radius:50%;width:34px;height:22px;top:calc(72% + 34px);left:87%}.pid-wheel-contact-flash{z-index:5;background:#e4b34ff2;border-radius:50%;width:18px;height:8px;animation:1.4s ease-in-out infinite pid-contact-flash;position:absolute;top:91%;left:33%;transform:translate(-50%,-50%);box-shadow:0 0 0 4px #e4b34f2e,0 0 15px #e4b34fdb}.pid-wheel-contact-flash:after{content:"";border-top:1px solid #76602a80;width:max-content;position:absolute;top:8px;left:50%;transform:translate(-50%)}.pid-wheel-contact-flash b{color:#76602a;letter-spacing:.08em;font:600 7px/1 DM Mono,monospace;position:absolute;top:12px;left:50%;transform:translate(-50%)}.pid-course-label-black{color:#ffffffb3;top:80%;left:14%}.pid-course-label-white{top:38%;right:13%}.pid-course-label-edge{top:53%;left:47%}.pid-course-caption{color:#131f1dbd;bottom:11px}.pid-surface-marker{color:#131f1da3}.pid-surface-marker-dark{color:#ffffffb3;top:80%;left:17%}.pid-surface-marker-edge{top:55%;left:48%}.pid-surface-marker-light{top:39%;right:16%}.pid-scan-control{justify-content:space-between;align-items:center;gap:10px;margin-top:8px;display:flex}.pid-scan-control span{color:var(--pid-dim);letter-spacing:.1em;font:600 8px/1.2 DM Mono,monospace}.pid-scan-control button{color:var(--pid-amber);cursor:pointer;background:#e4b34f0f;border:1px solid #e4b34f7a;border-radius:999px;padding:7px 11px;font:600 9px/1 DM Mono,monospace}:is(.pid-scan-control button:hover,.pid-scan-control button:focus-visible){background:#e4b34f24}@keyframes pid-contact-flash{0%,to{opacity:.55;transform:translate(-50%,-50%)scale(.78)}50%{opacity:1;transform:translate(-50%,-50%)scale(1.12)}}@media (max-width:560px){.pid-course-robot{width:155px;height:94px}.pid-red-beam{height:28px}.pid-red-spot{top:calc(72% + 28px)}.pid-scan-control{flex-direction:column;align-items:flex-start}}@media (prefers-reduced-motion:reduce){.pid-wheel-contact-flash{opacity:.85;animation:none}.pid-course-robot{animation:none;top:49%;left:50%;transform:translate(-50%,-50%)rotate(0)}.pid-red-spot i{opacity:.72;animation:none;transform:scale(.9)}}.pid-course-robot{top:var(--pid-robot-top);left:var(--pid-robot-left);width:220px;height:176px;transition:top .46s linear,left .46s linear;animation:none;transform:translate(-50%,-50%)rotate(0)}.pid-red-beam{height:44px;top:65.4%;left:10%;transform:translate(-50%)}.pid-red-spot{top:calc(65.4% + 44px);left:10%}.pid-wheel-contact-flash{top:88%;left:65%}.pid-drive-wheel-spin{z-index:4;width:96px;height:96px;animation:pid-wheel-roll var(--pid-wheel-spin-duration) linear infinite;background:repeating-conic-gradient(#070c0efa 0deg 12deg,#485252cc 12deg 18deg,#070c0efa 18deg 42deg);border:8px solid #19c5dceb;border-radius:50%;position:absolute;top:60%;left:65%;transform:translate(-50%,-50%);box-shadow:inset 0 0 0 5px #131b1ce6,0 1px 4px #080d0d47}.pid-drive-wheel-spin:before{content:"";background:#101718;border:2px solid #646e6ab3;border-radius:50%;position:absolute;inset:24px}.pid-drive-wheel-spin i{background:#27312f;border-radius:50%;width:7px;height:7px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 2px #bac3b147}.pid-edge-follow-status{border-left:3px solid var(--pid-mint);background:#50be8714;grid-template-columns:max-content max-content minmax(0,1fr);align-items:baseline;gap:9px;margin-top:10px;padding:10px 12px;display:grid}.pid-edge-follow-status span{color:var(--pid-mint);letter-spacing:.1em;font:600 8px/1.1 DM Mono,monospace}.pid-edge-follow-status strong{color:var(--pid-ink);letter-spacing:.04em;font:600 10px/1.1 DM Mono,monospace}.pid-edge-follow-status small{color:var(--pid-muted);font-size:10px;line-height:1.35}@keyframes pid-wheel-roll{0%{transform:translate(-50%,-50%)rotate(0)}to{transform:translate(-50%,-50%)rotate(360deg)}}@media (max-width:560px){.pid-edge-follow-status{grid-template-columns:1fr;gap:5px}.pid-course-robot{width:180px;height:144px}.pid-red-beam{height:39px;top:72.3%}.pid-red-spot{top:calc(72.3% + 39px)}.pid-drive-wheel-spin{border-width:6px;width:78px;height:78px;top:60%;left:65%}.pid-drive-wheel-spin:before{inset:19px}}@media (prefers-reduced-motion:reduce){.pid-course-robot{transition:none}.pid-drive-wheel-spin{animation:none}.pid-edge-follow-status{transition:none}}.pid-notice-content{grid-template-columns:1fr;gap:18px}.pid-notice-story-card{border:1px solid var(--pid-line-strong);background:linear-gradient(135deg,#1e3130b8,#0f1a1cbd);border-radius:12px;padding:18px 20px}.pid-notice-story-card h3{font-size:clamp(25px,3vw,34px)}.pid-notice-story-card p{max-width:780px;margin-top:12px;font-size:14px}.pid-line-lab{padding:16px}.pid-lab-heading{align-items:baseline;margin:0 2px 9px}.pid-lab-heading b{color:var(--pid-dim);letter-spacing:.08em;font-size:9px}.pid-course-live-reading{z-index:6;text-align:right;background:#ffffffe6;border:1px solid #131f1d33;border-radius:9px;gap:3px;min-width:118px;padding:8px 10px;display:grid;position:absolute;top:13px;right:15px;box-shadow:0 4px 12px #131f1d1a}.pid-course-live-reading span{color:#131f1d94;letter-spacing:.1em;font:600 8px/1 DM Mono,monospace}.pid-course-live-reading strong{color:#18221e;letter-spacing:-.04em;font:700 clamp(21px,3vw,30px)/1 DM Mono,monospace}.pid-reflection-observation{margin-top:9px;padding:10px 12px}.pid-edge-follow-status{margin-top:8px;padding:9px 11px}.pid-readout-row{margin-top:12px}.pid-line-edge-guide{margin-top:6px}.pid-notice-context{gap:16px}.pid-light-lesson{padding:14px}.pid-light-diagram>div{min-height:128px}@media (max-width:560px){.pid-notice-content{gap:14px}.pid-notice-story-card{padding:15px}.pid-notice-story-card h3{font-size:25px}.pid-notice-story-card p{font-size:12px}.pid-line-lab{padding:12px}.pid-lab-heading{flex-direction:column;align-items:flex-start;gap:5px}.pid-line-course{min-height:300px}.pid-course-live-reading{min-width:104px;padding:7px 8px;top:10px;right:10px}.pid-course-live-reading strong{font-size:22px}}.pid-gyro-lab-heading span,.pid-gyro-note>span{color:var(--pid-amber);letter-spacing:.1em;font:600 9px/1.1 DM Mono,monospace}.pid-gyro-lab{gap:10px;margin:16px 0 14px;display:grid}.pid-gyro-lab-heading{justify-content:space-between;align-items:baseline;gap:12px;padding:0 2px;display:flex}.pid-gyro-lab-heading b{color:var(--pid-dim);letter-spacing:.08em;font:600 9px/1.1 DM Mono,monospace}.pid-gyro-scene{background:linear-gradient(#dfe6d9 0%,#c7d2c4 31%,#162323 31.5%,#0d1719 100%);border:1px solid #c1d3c62e;border-radius:11px;min-height:390px;position:relative;overflow:hidden}.pid-gyro-sky{background:repeating-linear-gradient(0deg,#131f1d0a 0 2px,#0000 2px 9px),linear-gradient(#edf1e6,#c9d4c6);height:32%;position:absolute;inset:0 0 auto}.pid-gyro-sky:after{content:"";background:#131f1d4d;height:1px;position:absolute;bottom:0;left:12%;right:12%;box-shadow:0 -7px #131f1d14}.pid-gyro-sky span{color:#131f1d8c;letter-spacing:.1em;font:600 8px/1 DM Mono,monospace;position:absolute;top:13px;left:15px}.pid-gyro-road{clip-path:polygon(42% 0,58% 0,100% 100%,0 100%);background:linear-gradient(#223536 0%,#111c1e 58%,#0a1214 100%);position:absolute;inset:31% 0 0;overflow:hidden;box-shadow:inset 0 25px 45px #81c0a314}.pid-gyro-road-edge{background:linear-gradient(#e4b34fcc,#e4b34f24);width:2px;position:absolute;top:0;bottom:0;box-shadow:0 0 12px #e4b34f38}.pid-gyro-road-edge-left{transform-origin:top;left:41%;transform:skew(-14deg)}.pid-gyro-road-edge-right{transform-origin:top;right:41%;transform:skew(14deg)}.pid-gyro-target-line{background:repeating-linear-gradient(#82dbb1db 0 25px,#0000 25px 43px);width:3px;position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%);box-shadow:0 0 12px #82dbb147}.pid-gyro-target-line span{color:#bfdfc7b8;letter-spacing:.09em;width:max-content;font:600 8px/1 DM Mono,monospace;position:absolute;top:43%;left:13px;transform:rotate(-2deg)}.pid-gyro-road-mark{background:#e4b34f8c;border-radius:999px;width:4px;height:12px;position:absolute;left:50%;transform:translate(-50%)}.pid-gyro-road-mark-one{top:19%}.pid-gyro-road-mark-two{opacity:.7;height:20px;top:42%}.pid-gyro-road-mark-three{opacity:.9;height:30px;top:70%}.pid-gyro-heading-ray{z-index:3;width:3px;height:24%;transform:translateX(-50%) rotate(var(--pid-gyro-yaw));transform-origin:bottom;background:linear-gradient(#0000,#e88972e0);border-radius:999px;transition:transform .46s linear;position:absolute;bottom:14%;left:50%;box-shadow:0 0 12px #e8897257}.pid-gyro-robot-wrap{bottom:calc(4% + (var(--pid-gyro-progress) * 56%));left:calc(50% + var(--pid-gyro-offset));z-index:4;width:184px;transform:translateX(-50%) scale(calc(1 - (var(--pid-gyro-progress) * .52))) rotate(var(--pid-gyro-yaw));transform-origin:bottom;filter:drop-shadow(0 10px 9px #040a0b59);transition:left .46s linear,bottom .46s linear,transform .46s linear;position:absolute}.pid-gyro-robot-wrap:after{content:"";filter:blur(4px);height:10px;transform:rotate(calc(var(--pid-gyro-yaw) * -1));background:#040a0b52;border-radius:50%;position:absolute;bottom:-2px;left:12%;right:12%}.pid-gyro-robot-wrap img{z-index:1;width:100%;height:auto;display:block;position:relative}.pid-gyro-live-readout{z-index:6;background:#ffffffe0;border:1px solid #131f1d33;border-radius:9px;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;min-width:246px;padding:10px 12px;display:grid;position:absolute;top:12px;right:12px;box-shadow:0 4px 12px #131f1d1a}.pid-gyro-live-readout>div{gap:4px;display:grid}.pid-gyro-live-readout small{color:#131f1d8f;letter-spacing:.1em;font:600 8px/1 DM Mono,monospace}.pid-gyro-live-readout strong{color:#18221e;letter-spacing:-.04em;font:700 24px/1 DM Mono,monospace}.pid-gyro-live-readout span{color:#131f1d9e;font:9px/1.2 DM Mono,monospace}.pid-gyro-scene-caption{z-index:6;border-left:3px solid var(--pid-mint);background:#071012c7;gap:5px;max-width:260px;padding:10px 12px;display:grid;position:absolute;bottom:14px;left:14px}.pid-gyro-scene-caption strong{color:var(--pid-ink);font-size:12px;line-height:1.2}.pid-gyro-scene-caption span{color:var(--pid-muted);font-size:10px;line-height:1.35}.pid-gyro-note{border-left:3px solid var(--pid-amber);background:#e4b34f14;grid-template-columns:max-content minmax(0,1fr);align-items:baseline;gap:13px;padding:11px 13px;display:grid}.pid-gyro-note p{color:var(--pid-muted);margin:0;font-size:11px;line-height:1.42}@media (max-width:560px){.pid-gyro-scene{min-height:350px}.pid-gyro-lab-heading{flex-direction:column;align-items:flex-start;gap:5px}.pid-gyro-live-readout{gap:8px;width:calc(100% - 18px);min-width:0;padding:8px 9px;top:9px;right:9px}.pid-gyro-live-readout strong{font-size:21px}.pid-gyro-robot-wrap{width:148px}.pid-gyro-scene-caption{max-width:215px;bottom:10px;left:10px;right:10px}.pid-gyro-note{grid-template-columns:1fr;gap:6px}}@media (prefers-reduced-motion:reduce){.pid-gyro-heading-ray{transition:none;transform:translate(-50%)rotate(0)}.pid-gyro-robot-wrap{transition:none;bottom:22%;left:50%;transform:translate(-50%)scale(.72)}}.pid-sensor-lesson-content{gap:18px;display:grid}.pid-sensor-lesson-lead{grid-template-columns:minmax(0,1.25fr) minmax(220px,.75fr);align-items:stretch;gap:12px;display:grid}.pid-sensor-lesson-lead .pid-notice-story-card{height:100%}.pid-sensor-lesson-question{background:#e4b34f12;border:1px solid #e4b34f47;border-radius:12px;align-content:center;gap:7px;padding:18px;display:grid}.pid-sensor-lesson-question span,.pid-sensor-next span,.pid-pid-context span,.pid-gyro-bridge span{color:var(--pid-amber);letter-spacing:.1em;font:600 9px/1.1 DM Mono,monospace}.pid-sensor-lesson-question strong,.pid-sensor-next strong,.pid-pid-context strong,.pid-gyro-bridge strong{color:var(--pid-ink);font-size:14px;line-height:1.25}.pid-sensor-lesson-question small,.pid-sensor-next small,.pid-pid-context small,.pid-gyro-bridge small{color:var(--pid-muted);font-size:11px;line-height:1.4}.pid-sensor-lesson-content>.pid-mode-switch{margin-top:2px}.pid-sensor-next{border-left:3px solid var(--pid-mint);background:#50be8714;gap:6px;padding:14px 16px;display:grid}.pid-pid-context{border:1px solid var(--pid-line);background:#08121457;border-radius:11px;justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;display:flex}.pid-pid-context>div{gap:6px;display:grid}.pid-pid-context button{color:var(--pid-amber);cursor:pointer;background:#e4b34f0f;border:1px solid #e4b34f73;border-radius:999px;flex:none;padding:8px 11px;font:600 9px/1.2 DM Mono,monospace}:is(.pid-pid-context button:hover,.pid-pid-context button:focus-visible){background:#e4b34f24}.pid-gyro-wheel-overlay{z-index:2;aspect-ratio:1;background:repeating-conic-gradient(from 0deg, #f0f8ed80 0 5deg, transparent 5deg 38deg);mix-blend-mode:screen;opacity:.72;pointer-events:none;border:1px solid #f0f8ed94;border-radius:50%;width:18%;animation:9.5s linear infinite pid-gyro-wheel-rotation;position:absolute;top:50.5%}.pid-gyro-wheel-overlay:after{content:"";background:#f0f8edc7;border-radius:50%;position:absolute;inset:42%;box-shadow:0 0 0 1px #131f1d73}.pid-gyro-wheel-overlay-left{left:2%}.pid-gyro-wheel-overlay-right{right:2%}.pid-gyro-wheel-overlay i{background:#f0f8eda6;width:1px;height:84%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.pid-gyro-scene.is-paused .pid-gyro-wheel-overlay{animation-play-state:paused}@keyframes pid-gyro-wheel-rotation{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width:700px){.pid-sensor-lesson-lead{grid-template-columns:1fr}.pid-pid-context{flex-direction:column;align-items:flex-start}.pid-pid-context button{width:100%}}@media (prefers-reduced-motion:reduce){.pid-gyro-wheel-overlay{animation:none}}.pid-p-line-course{background:#fff}.pid-p-line-course:before{display:none}.pid-p-line-edge{z-index:1;background:#11191a;border-radius:4px;height:31px;top:54%;left:-8%;right:-8%;transform:translateY(-50%);box-shadow:0 2px #080d0d59}.pid-p-line-run-robot{z-index:3;filter:drop-shadow(0 6px 7px #040a0b45);width:142px;height:84px;position:absolute;top:36%;left:14%;transform:translate(-50%,-50%)}.pid-p-line-run-robot img{width:100%;height:auto;display:block;transform:rotateY(180deg)}.pid-p-line-run-wheel{z-index:4;background:repeating-conic-gradient(#070c0edb 0deg 12deg,#b0beb28c 12deg 17deg,#070c0edb 17deg 42deg);border:4px solid #19c5dcc7;border-radius:50%;width:51px;height:51px;animation:1.8s linear infinite pid-p-line-run-wheel-roll;position:absolute;top:69%;left:66%;transform:translate(-50%,-50%);box-shadow:inset 0 0 0 3px #131b1cdb,0 1px 4px #080d0d47}.pid-p-line-run-wheel:before{content:"";background:#101718;border:2px solid #646e6ab3;border-radius:50%;position:absolute;inset:13px}.pid-p-line-run-beam{background:var(--pid-coral);width:2px;height:29px;animation:1.15s ease-in-out infinite pid-p-line-sensor-flash;position:absolute;bottom:-4px;left:92%;box-shadow:0 0 10px #e88972f2}.pid-p-line-run-spot{border:2px solid var(--pid-coral);background:#e8897229;border-radius:50%;width:17px;height:17px;animation:1.15s ease-in-out infinite pid-p-line-sensor-flash;position:absolute;bottom:-13px;left:92%;transform:translate(-50%,50%);box-shadow:0 0 0 5px #e8897212,0 0 12px #e8897294}.pid-p-run.is-aggressive .pid-p-line-run-robot{animation:pid-p-line-run-aggressive var(--pid-p-run-duration) ease-in-out infinite}.pid-p-run.is-gentle .pid-p-line-run-robot{animation:pid-p-line-run-gentle var(--pid-p-run-duration) ease-in-out infinite}@keyframes pid-p-line-run-aggressive{0%,8%{top:36%;left:14%;transform:translate(-50%,-50%)}19%{top:28%;left:26%;transform:translate(-50%,-50%)}31%{top:42%;left:39%;transform:translate(-50%,-50%)}44%{top:25%;left:52%;transform:translate(-50%,-50%)}57%{top:43%;left:65%;transform:translate(-50%,-50%)}71%{top:27%;left:78%;transform:translate(-50%,-50%)}85%{top:41%;left:88%;transform:translate(-50%,-50%)}92%,to{top:33%;left:91%;transform:translate(-50%,-50%)}}@keyframes pid-p-line-run-gentle{0%,8%{top:36%;left:14%;transform:translate(-50%,-50%)}22%{top:32%;left:28%;transform:translate(-50%,-50%)}38%{top:39%;left:43%;transform:translate(-50%,-50%)}54%{top:30%;left:58%;transform:translate(-50%,-50%)}70%{top:38%;left:73%;transform:translate(-50%,-50%)}86%{top:33%;left:86%;transform:translate(-50%,-50%)}92%,to{top:35%;left:91%;transform:translate(-50%,-50%)}}@keyframes pid-p-line-run-wheel-roll{0%{transform:translate(-50%,-50%)rotate(0)}to{transform:translate(-50%,-50%)rotate(360deg)}}@keyframes pid-p-line-sensor-flash{0%,to{opacity:.72}50%{opacity:1}}.pid-p-gyro-course{background:linear-gradient(#dfe6d9 0%,#c7d2c4 31%,#162323 31.5%,#0d1719 100%)}.pid-p-gyro-run-robot{z-index:4;filter:drop-shadow(0 8px 8px #040a0b59);width:118px;position:absolute;bottom:3%;left:50%;transform:translate(-50%)}.pid-p-gyro-run-robot img{width:100%;height:auto;display:block}.pid-p-run.is-aggressive .pid-p-gyro-run-robot{animation:pid-p-gyro-run-aggressive var(--pid-p-run-duration) ease-in-out infinite}.pid-p-run.is-gentle .pid-p-gyro-run-robot{animation:pid-p-gyro-run-gentle var(--pid-p-run-duration) ease-in-out infinite}@keyframes pid-p-gyro-run-aggressive{0%,8%{bottom:3%;left:51%;transform:translate(-50%)scale(1)rotate(-2deg)}22%{bottom:20%;left:42%;transform:translate(-50%)scale(.88)rotate(-13deg)}38%{bottom:37%;left:59%;transform:translate(-50%)scale(.76)rotate(15deg)}54%{bottom:53%;left:40%;transform:translate(-50%)scale(.64)rotate(-17deg)}72%{bottom:68%;left:58%;transform:translate(-50%)scale(.51)rotate(13deg)}92%,to{bottom:82%;left:46%;transform:translate(-50%)scale(.4)rotate(-8deg)}}@keyframes pid-p-gyro-run-gentle{0%,8%{bottom:3%;left:51%;transform:translate(-50%)scale(1)rotate(-1deg)}22%{bottom:20%;left:47%;transform:translate(-50%)scale(.88)rotate(-5deg)}38%{bottom:37%;left:53%;transform:translate(-50%)scale(.76)rotate(5deg)}54%{bottom:53%;left:46%;transform:translate(-50%)scale(.64)rotate(-5deg)}72%{bottom:68%;left:52%;transform:translate(-50%)scale(.51)rotate(4deg)}92%,to{bottom:82%;left:49%;transform:translate(-50%)scale(.4)rotate(-2deg)}}.pid-p-wave i.pid-p-wave-draw{border-radius:0;width:auto;height:auto;animation:3.2s linear both pid-p-wave-draw-left;position:absolute;inset:0}.pid-p-wave i.pid-p-wave-draw b{width:100%;height:100%;display:block;position:absolute;inset:0}.pid-p-wave-scaled i.pid-p-wave-draw{animation-duration:2.4s}@keyframes pid-p-wave-draw-left{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0)}}@media (max-width:560px){.pid-p-line-run-robot{width:116px;height:69px}.pid-p-gyro-run-robot{width:94px}}@media (prefers-reduced-motion:reduce){.pid-p-line-run-robot,.pid-p-gyro-run-robot,.pid-p-line-run-wheel,.pid-p-line-run-beam,.pid-p-line-run-spot,.pid-p-wave i.pid-p-wave-draw{animation:none}}.pid-p-run-scene{height:232px}.pid-p-line-course{perspective:480px;background:repeating-linear-gradient(0deg,#15221f09 0 1px,#0000 1px 21px),linear-gradient(#eef2e8 0%,#c6d3c4 100%);overflow:hidden}.pid-p-line-course:before{z-index:0;content:"";clip-path:polygon(0 0,52% 0,70% 100%,0 100%);background:linear-gradient(90deg,#080e0f,#11191a 76%,#1a2422);position:absolute;inset:0;box-shadow:inset -12px 0 16px #0000002b}.pid-p-line-course:after{z-index:0;content:"";pointer-events:none;opacity:.46;background:repeating-linear-gradient(0deg,#0000 0 43px,#ffffff21 44px 45px);position:absolute;inset:0}.pid-p-line-edge{z-index:1;clip-path:polygon(51.7% 0,52.5% 0,70.5% 100%,69.4% 100%);opacity:.7;background:#e4b34fc7;border-radius:0;width:auto;height:auto;inset:0;transform:none;box-shadow:0 0 9px #e4b34f3d}.pid-p-line-horizon{z-index:1;background:#131f1d38;height:1px;position:absolute;top:10%;left:8%;right:8%;box-shadow:0 -6px #131f1d0f}.pid-p-line-run-robot{z-index:3;aspect-ratio:1061/848;transform-origin:50% 78%;filter:drop-shadow(0 8px 8px #040a0b4d);width:150px;animation:pid-p-line-front-run-aggressive var(--pid-p-run-duration) cubic-bezier(.45,.05,.55,.95) infinite;position:absolute;top:12%;left:54%;transform:translate(-50%,-50%)scale(.34)}.pid-p-run.is-gentle .pid-p-line-run-robot{animation-name:pid-p-line-front-run-gentle}.pid-p-line-run-robot img{object-fit:contain;width:100%;height:100%;display:block;transform:none}.pid-p-line-run-wheel{z-index:4;transform-origin:50%;background:#070c0e14;border:1px solid #0948504d;border-radius:46%;width:13%;height:56%;position:absolute;top:63%;overflow:hidden;transform:translate(-50%,-50%);box-shadow:inset 0 0 0 1px #ffffff1a}.pid-p-line-wheel-left{left:7.2%}.pid-p-line-wheel-right{left:92.8%}.pid-p-line-run-wheel b{border-radius:inherit;animation:pid-p-line-wheel-tread var(--pid-wheel-spin-duration) linear infinite;background:repeating-linear-gradient(#02353d14 0 8px,#01171b8f 8px 11px,#28d2e114 11px 17px);display:block;position:absolute;inset:-18% 8%}.pid-p-line-wheel-right b{animation-duration:var(--pid-wheel-spin-duration-right)}.pid-p-run.is-aggressive .pid-p-line-run-wheel{animation:pid-p-line-wheel-steer-aggressive var(--pid-p-run-duration) ease-in-out infinite}.pid-p-run.is-gentle .pid-p-line-run-wheel{animation:pid-p-line-wheel-steer-gentle var(--pid-p-run-duration) ease-in-out infinite}.pid-p-line-run-beam{background:linear-gradient(#fff7c8 0%,#ff5c50 55%,#ff493e2e);width:3px;height:21%;animation:1s ease-in-out infinite pid-p-line-sensor-flash;inset:88% auto auto 50%;transform:translate(-50%);box-shadow:0 0 8px #ff5746eb,0 0 15px #ffdd81a8}.pid-p-line-run-spot{background:#ffe5962e;border:2px solid #ff6255;border-radius:50%;width:24px;height:15px;animation:1s ease-in-out infinite 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pid-p-line-front-run-aggressive{0%,7%{opacity:0;top:12%;left:54%;transform:translate(-50%,-50%)scale(.34)}14%{opacity:1}24%{top:28%;left:52%;transform:translate(-50%,-50%)scale(.48)}40%{top:44%;left:66%;transform:translate(-50%,-50%)scale(.63)}57%{top:60%;left:56%;transform:translate(-50%,-50%)scale(.78)}74%{top:75%;left:73%;transform:translate(-50%,-50%)scale(.94)}92%{opacity:1;top:89%;left:63%;transform:translate(-50%,-50%)scale(1.1)}to{opacity:0;top:94%;left:67%;transform:translate(-50%,-50%)scale(1.16)}}@keyframes 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span{color:var(--pid-muted);font-size:10px;line-height:1.4}.pid-proportional-live-feedback.is-error{border-left-color:var(--pid-coral);background:#e889721a}.pid-proportional-live-feedback.is-error strong{color:var(--pid-coral)}.pid-proportional-live-feedback.is-accepted{border-left-color:var(--pid-mint);background:#50be871a}.pid-proportional-live-feedback.is-accepted strong,.pid-proportional-live-feedback.is-accepted span{color:var(--pid-mint)}@media (max-width:760px){.pid-proportional-code-heading{grid-template-columns:1fr}.pid-proportional-code-mode{min-width:0}.pid-proportional-code-grid{grid-template-columns:1fr}.pid-proportional-tabs{border-radius:10px;grid-template-columns:1fr;width:100%;display:grid}}@media (prefers-reduced-motion:reduce){.pid-proportional-editor textarea,.pid-proportional-tabs button{transition:none}}.pid-derivative-content{gap:18px;display:grid}.pid-d-progress{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.pid-d-progress button{border:1px solid var(--pid-line);min-height:70px;color:var(--pid-muted);text-align:left;cursor:pointer;background:#08121447;border-radius:10px;gap:7px;padding:10px 12px;transition:border-color .2s,background .2s,color .2s,transform .2s;display:grid}:is(.pid-d-progress button:hover,.pid-d-progress button:focus-visible){color:var(--pid-ink);border-color:#e4b34f8a;transform:translateY(-1px)}.pid-d-progress button.is-active{color:var(--pid-ink);background:#e4b34f1f;border-color:#e4b34fbd}.pid-d-progress button.is-complete{color:var(--pid-mint);border-color:#50be876b}.pid-d-progress span,.pid-d-story-card>span,.pid-d-question-card>span,.pid-d-time-heading>div>span,.pid-d-stage-lead>div>span,.pid-d-rate-copy>span,.pid-d-forecast-copy>span,.pid-d-example-row span,.pid-d-equation-card>span,.pid-d-code-explanation>span,.pid-d-stage-footer>span{color:var(--pid-amber);letter-spacing:.1em;font:600 9px/1.15 DM Mono,monospace}.pid-d-progress strong{color:inherit;font-size:12px;line-height:1.2}.pid-d-stage{gap:17px;display:grid}.pid-d-lead-grid,.pid-d-stage-lead{grid-template-columns:minmax(0,1.18fr) minmax(250px,.82fr);align-items:stretch;gap:14px;display:grid}.pid-d-story-card,.pid-d-question-card,.pid-d-equation-card{border:1px solid var(--pid-line-strong);background:linear-gradient(135deg,#1e3130b8,#0f1a1cbd);border-radius:12px;padding:18px}.pid-d-story-card{align-content:start;gap:10px;display:grid}.pid-d-story-card h3,.pid-d-stage-lead h3,.pid-d-time-heading h3{color:var(--pid-ink);letter-spacing:-.04em;margin:0;font-size:clamp(24px,3vw,36px);line-height:1.04}.pid-d-story-card p,.pid-d-stage-lead p,.pid-d-time-heading p,.pid-d-rate-copy p,.pid-d-forecast-copy p{max-width:680px;color:var(--pid-muted);margin:0;font-size:13px;line-height:1.5}.pid-d-question-card{background:#e4b34f12;border-color:#e4b34f4d;align-content:center;gap:10px;display:grid}.pid-d-question-card strong{color:var(--pid-ink);font-size:17px;line-height:1.2}.pid-d-answer-buttons{flex-wrap:wrap;gap:8px;display:flex}.pid-d-answer-buttons button,.pid-d-time-heading>button{color:var(--pid-muted);cursor:pointer;background:#08121457;border:1px solid #c1d3c63d;border-radius:999px;padding:9px 11px;font:600 10px/1.15 DM Mono,monospace;transition:border-color .2s,color .2s,background .2s,transform .2s}:is(.pid-d-answer-buttons button:hover,.pid-d-answer-buttons button:focus-visible,.pid-d-time-heading>button:hover,.pid-d-time-heading>button:focus-visible){color:var(--pid-ink);border-color:#e4b34f9e;transform:translateY(-1px)}.pid-d-answer-buttons button.is-selected{border-color:var(--pid-amber);color:var(--pid-ink);background:#e4b34f29}.pid-d-question-card small{color:var(--pid-muted);font-size:11px;line-height:1.45}.pid-d-time-lab{border:1px solid var(--pid-line-strong);background:linear-gradient(135deg,#1e3130a6,#081214b8);border-radius:12px;gap:14px;padding:17px;display:grid}.pid-d-time-heading{grid-template-columns:minmax(0,1fr) max-content;align-items:start;gap:18px;display:grid}.pid-d-time-heading>div{gap:9px;display:grid}.pid-d-time-heading>button{color:var(--pid-amber);border-color:#e4b34f7a}.pid-d-time-plot{border:1px solid var(--pid-line);background:#071113;border-radius:10px;min-height:245px;padding:31px 16px 15px;position:relative;overflow:hidden}.pid-d-time-grid{opacity:.55;background:repeating-linear-gradient(90deg,#0000 0 13.8%,#c1d3c614 13.9% 14%),repeating-linear-gradient(#0000 0 39px,#c1d3c60f 40px);position:absolute;inset:0}.pid-d-time-axis{background:#c1d3c647;height:1px;position:absolute;bottom:56px;left:14px;right:14px}.pid-d-time-values{z-index:1;grid-template-columns:repeat(6,minmax(0,1fr));align-items:end;gap:8px;height:174px;display:grid;position:relative}.pid-d-time-point{align-content:end;justify-items:center;gap:7px;height:100%;display:grid;position:relative}.pid-d-time-point i{transform-origin:bottom;background:#8ac3a25c;border-radius:5px 5px 2px 2px;width:min(20px,70%);min-height:20px;transition:background .35s,transform .35s;display:block}.pid-d-time-point b{color:var(--pid-muted);font:700 11px/1 DM Mono,monospace}.pid-d-time-point small{color:var(--pid-dim);letter-spacing:.07em;text-transform:uppercase;font:8px/1 DM Mono,monospace}.pid-d-time-point.is-past i{background:#8ac3a294}.pid-d-time-point.is-current i{background:var(--pid-amber);animation:1.4s ease-in-out infinite pid-d-current-pulse;transform:scaleX(1.28);box-shadow:0 0 17px #e4b34f52}.pid-d-time-point.is-current b,.pid-d-time-point.is-current small{color:var(--pid-ink)}.pid-d-time-point.is-future i{background:repeating-linear-gradient(135deg,#e8897299 0 4px,#e889722e 4px 8px)}.pid-d-time-zones{z-index:1;color:var(--pid-dim);letter-spacing:.08em;grid-template-columns:2fr 2fr 2fr;gap:8px;font:600 8px/1.15 DM Mono,monospace;display:grid;position:absolute;bottom:15px;left:16px;right:16px}.pid-d-time-zones span:nth-child(2){color:var(--pid-amber);text-align:center}.pid-d-time-zones span:last-child{color:var(--pid-coral);text-align:right}.pid-d-time-readout{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.pid-d-time-readout>div{border-left:3px solid var(--pid-mint);background:#50be8712;gap:6px;padding:11px 12px;display:grid}.pid-d-time-readout>div.is-now{border-left-color:var(--pid-amber);background:#e4b34f14}.pid-d-time-readout>div.is-future{border-left-color:var(--pid-coral);background:#e8897214}.pid-d-time-readout span{color:var(--pid-dim);letter-spacing:.08em;font:600 8px/1.1 DM Mono,monospace}.pid-d-time-readout strong{color:var(--pid-ink);font:700 25px/1 DM Mono,monospace}.pid-d-time-readout small{color:var(--pid-muted);grid-column:1/-1;margin-top:2px;font-size:10px;line-height:1.35}@keyframes pid-d-current-pulse{0%,to{opacity:.72}50%{opacity:1}}.pid-d-human-robot-bridge{border-left:3px solid var(--pid-mint);background:#50be8714;grid-template-columns:minmax(0,1fr) max-content minmax(0,1fr);align-items:center;gap:12px;padding:14px 16px;display:grid}.pid-d-human-robot-bridge>div{gap:5px;display:grid}.pid-d-human-robot-bridge>div>span{color:var(--pid-mint);letter-spacing:.1em;font:600 9px/1.1 DM Mono,monospace}.pid-d-human-robot-bridge strong{color:var(--pid-ink);font-size:14px;line-height:1.2}.pid-d-human-robot-bridge small{color:var(--pid-muted);font-size:11px;line-height:1.3}.pid-d-human-robot-bridge>b{color:var(--pid-amber);font:700 22px/1 DM Mono,monospace}.pid-d-stage-lead>div:first-child{align-content:center;gap:9px;padding:4px 2px;display:grid}.pid-d-stage-lead>div:first-child>span{display:block}.pid-d-stage-lead p{margin-top:3px}.pid-d-rate-lab,.pid-d-forecast-lab,.pid-d-code-lesson{border:1px solid var(--pid-line-strong);background:#0812146b;border-radius:12px;grid-template-columns:minmax(0,.9fr) minmax(280px,1.1fr);gap:15px;padding:17px;display:grid}.pid-d-rate-copy,.pid-d-forecast-copy{align-content:center;gap:10px;display:grid}.pid-d-rate-copy h3{color:var(--pid-ink);margin:0;font-size:25px;line-height:1.08}.pid-d-rate-formula{border-left:3px solid var(--pid-amber);background:#e4b34f14;gap:5px;padding:11px 12px;display:grid}.pid-d-rate-formula strong{color:var(--pid-ink);font:700 17px/1 DM Mono,monospace}.pid-d-rate-formula span{color:var(--pid-muted);font-size:11px;line-height:1.35}.pid-d-tangent-visual{border:1px solid var(--pid-line);background:repeating-linear-gradient(90deg,#0000 0 41px,#c1d3c612 42px),repeating-linear-gradient(#0000 0 41px,#c1d3c612 42px),#071113;border-radius:9px;min-height:230px;position:relative;overflow:hidden}.pid-d-tangent-axis{background:#c1d3c647;height:1px;position:absolute;bottom:26%;left:12%;right:12%}.pid-d-tangent-point{z-index:2;border:2px solid var(--pid-amber);background:var(--pid-bg-deep);border-radius:50%;width:12px;height:12px;position:absolute;box-shadow:0 0 12px #e4b34f40}.pid-d-tangent-point-a{bottom:39%;left:29%}.pid-d-tangent-point-b{bottom:51%;left:61%}.pid-d-tangent-line{background:var(--pid-coral);transform-origin:0;border-radius:99px;width:36%;height:3px;transition:transform .4s,background .4s;position:absolute;top:50%;left:30%;transform:rotate(-13deg)}.pid-d-tangent-visual.is-fast .pid-d-tangent-line{background:var(--pid-coral);transform:rotate(-27deg)}.pid-d-tangent-visual.is-slow .pid-d-tangent-line{background:var(--pid-mint);transform:rotate(-8deg)}.pid-d-tangent-label-a,.pid-d-tangent-label-b{color:var(--pid-dim);font:9px/1.2 DM Mono,monospace;position:absolute}.pid-d-tangent-label-a{bottom:25%;left:22%}.pid-d-tangent-label-b{bottom:25%;left:56%}.pid-d-tangent-visual>strong{color:var(--pid-amber);letter-spacing:.08em;text-transform:uppercase;font:600 9px/1.2 DM Mono,monospace;position:absolute;top:13px;right:13px}.pid-d-example-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.pid-d-example-row>div{border:1px solid var(--pid-line);background:#c1d3c609;gap:7px;padding:13px;display:grid}.pid-d-example-row strong{color:var(--pid-ink);font-size:14px;line-height:1.25}.pid-d-example-row small{color:var(--pid-muted);font-size:11px;line-height:1.35}.pid-d-forecast-track{border:1px solid var(--pid-line);background:linear-gradient(#8ac3a214,#0000 52%),#071113;border-radius:9px;min-height:216px;position:relative;overflow:hidden}.pid-d-forecast-track:before{content:"";background:#c1d3c638;height:1px;position:absolute;top:58%;left:9%;right:9%}.pid-d-forecast-past,.pid-d-forecast-current,.pid-d-forecast-next{z-index:1;letter-spacing:.07em;padding:7px 8px;font:600 9px/1.1 DM Mono,monospace;position:absolute}.pid-d-forecast-past{color:var(--pid-mint);top:25%;left:12%}.pid-d-forecast-current{color:var(--pid-amber);top:42%;left:42%}.pid-d-forecast-next{color:var(--pid-coral);top:61%;right:10%}.pid-d-forecast-curve{background:linear-gradient(90deg, var(--pid-mint), var(--pid-amber), var(--pid-coral));transform-origin:0;border-radius:99px;width:61%;height:2px;position:absolute;top:51%;left:17%;transform:rotate(13deg)}.pid-d-forecast-arrow{color:var(--pid-coral);font:700 25px/1 DM Mono,monospace;animation:1.6s ease-in-out infinite pid-d-arrow-nudge;position:absolute;top:53%;right:17%}@keyframes pid-d-arrow-nudge{0%,to{opacity:.65;transform:translate(0)}50%{opacity:1;transform:translate(6px)}}.pid-d-forecast-copy strong{color:var(--pid-ink);font-size:17px;line-height:1.2}.pid-d-forecast-copy code{border-left:3px solid var(--pid-amber);color:var(--pid-ink);background:#040c0e8a;padding:11px;font:600 11px/1.4 DM Mono,monospace;display:block}.pid-d-equation-card{background:#e4b34f12;border-color:#e4b34f57;align-content:center;gap:9px;display:grid}.pid-d-equation-card strong{color:var(--pid-ink);font-size:17px;line-height:1.2}.pid-d-equation-card small{color:var(--pid-muted);font-size:11px;line-height:1.4}.pid-d-code-lesson{background:0 0;border:0;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);padding:0}.pid-d-code-block{border:1px solid var(--pid-line);background:#071113;border-radius:11px;gap:8px;padding:15px;display:grid}.pid-d-code-block>div{background:#c1d3c60b;border-left:3px solid #c1d3c638;gap:6px;padding:10px;display:grid}.pid-d-code-block>div:first-child{border-color:var(--pid-mint)}.pid-d-code-block>div:last-child{border-color:var(--pid-amber)}.pid-d-code-block span{color:var(--pid-dim);letter-spacing:.1em;font:600 8px/1.1 DM Mono,monospace}.pid-d-code-block code{color:var(--pid-ink);font:600 12px/1.35 DM Mono,monospace}.pid-d-code-explanation{background:#e4b34f12;border:1px solid #e4b34f47;border-radius:11px;align-content:center;gap:9px;padding:17px;display:grid}.pid-d-code-explanation strong{color:var(--pid-ink);font-size:17px;line-height:1.2}.pid-d-code-explanation p{color:var(--pid-muted);margin:0;font-size:11px;line-height:1.45}.pid-d-code-explanation code{color:var(--pid-ink);font:600 11px/1.3 DM Mono,monospace}.pid-d-final-map{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-top:2px;display:grid}.pid-d-final-map div{border:1px solid var(--pid-line);background:#0812144d;gap:5px;padding:9px;display:grid}.pid-d-final-map b{color:var(--pid-amber);font:700 19px/1 DM Mono,monospace}.pid-d-final-map span{color:var(--pid-muted);font-size:10px;line-height:1.25}.pid-d-stage-footer{border-top:1px solid var(--pid-line);grid-template-columns:max-content minmax(0,1fr) max-content;align-items:center;gap:12px;padding-top:14px;display:grid}.pid-d-stage-footer strong{color:var(--pid-ink);font-size:14px;line-height:1.25}.pid-d-stage-footer .pid-next-button{margin-left:auto}.pid-derivative-code-lab{margin-top:14px}.pid-step-eight-baseline{background:#50be870b}@media (max-width:760px){.pid-d-progress{grid-template-columns:repeat(2,minmax(0,1fr))}.pid-d-lead-grid,.pid-d-stage-lead,.pid-d-rate-lab,.pid-d-forecast-lab,.pid-d-code-lesson,.pid-d-time-heading{grid-template-columns:1fr}.pid-d-time-heading>button{justify-self:start}.pid-d-stage-footer{grid-template-columns:1fr;gap:8px}.pid-d-stage-footer .pid-next-button{width:100%;margin-left:0}}@media (max-width:520px){.pid-d-progress button{min-height:62px;padding:9px}.pid-d-story-card,.pid-d-question-card,.pid-d-time-lab,.pid-d-rate-lab,.pid-d-forecast-lab{padding:14px}.pid-d-human-robot-bridge{grid-template-columns:1fr;gap:8px}.pid-d-human-robot-bridge>b{justify-self:center;transform:rotate(90deg)}.pid-d-time-plot{min-height:220px;padding-left:9px;padding-right:9px}.pid-d-time-values{gap:3px}.pid-d-time-zones{font-size:7px;left:9px;right:9px}.pid-d-time-readout,.pid-d-example-row,.pid-d-final-map{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.pid-d-progress button,.pid-d-answer-buttons button,.pid-d-time-heading>button,.pid-d-tangent-line,.pid-d-time-point i{transition:none}.pid-d-time-point.is-current,.pid-d-forecast-arrow{animation:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}