:root{
  --navy:#10233c;--navy-700:#1b3a63;--blue:#3d7fca;--blue-soft:#84b7ec;
  --orange:#ff6b35;--orange-dark:#c9451a;--cream:#f7f1e7;--paper:#fffdf8;
  --muted:#637285;--line:rgba(27,58,99,.16);--green:#1e7e54;--green-soft:#e3f5ec;
  --red:#c0392b;--red-soft:#fbe7e4;--amber:#b06a00;--amber-soft:#fff4e0;
  --shadow:0 22px 60px rgba(27,58,99,.12)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{min-width:320px;margin:0;color:var(--navy);background:var(--cream);font-family:Calibri,"Segoe UI",system-ui,Arial,sans-serif}
button,select,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}
button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid rgba(255,107,53,.45);outline-offset:3px}
.experience{width:min(1240px,calc(100% - 40px));margin:auto}
.topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;color:var(--navy);text-decoration:none}.brand-mark{display:grid;width:44px;height:44px;place-items:center;border-radius:14px;color:#fff;background:var(--navy-700);font-weight:900}.brand>span:last-child{display:grid}.brand strong{font-size:14px}.brand small{color:var(--muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.topbar-actions,.voice-controls{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.pill,.listen,.exit-course,.nav,.start{border:1px solid var(--line);border-radius:999px;font-weight:850}
.pill{min-height:40px;padding:0 15px;color:var(--navy-700);background:var(--paper)}
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(330px,.85fr);gap:55px;align-items:center;min-height:590px;padding:54px 0 78px}
.eyebrow{margin:0 0 12px;color:var(--orange-dark);font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
.hero h1,.lesson-top h2,.final-message h2,.refs h2{font-family:"Trebuchet MS",Calibri,Arial,sans-serif;color:var(--navy-700);font-weight:700;letter-spacing:-.015em}
.hero h1{max-width:800px;margin:0;font-size:clamp(50px,6.2vw,82px);line-height:.97}.hero h1 span,.final-message h2 span{color:var(--orange-dark)}
.hero-copy>p:not(.eyebrow){max-width:680px;margin:24px 0;color:var(--muted);font-size:18px;line-height:1.6}
.chapter-back{display:inline-flex;margin-bottom:17px;color:var(--blue);font-size:13px;font-weight:850;text-decoration:none;border-bottom:1px solid rgba(61,127,202,.35)}
.start{display:flex;align-items:center;justify-content:space-between;min-height:53px;padding:0 20px;color:#fff;background:var(--navy-700);border-color:var(--navy-700)}
.duration{display:block;margin-top:12px;color:var(--muted);font-size:12px}.learning-goals{display:flex;gap:8px;flex-wrap:wrap;margin-top:19px}.learning-goals span{display:flex;align-items:center;gap:8px;padding:8px 11px;border:1px solid var(--line);border-radius:14px;background:var(--paper);font-size:12px;font-weight:750}.learning-goals b{display:grid;width:22px;height:22px;place-items:center;border-radius:50%;color:#fff;background:var(--blue)}
.hero-equations{display:grid;gap:15px}.hero-equations article{padding:25px;border:1px solid var(--line);border-left:7px solid var(--blue);border-radius:20px;background:var(--paper);box-shadow:var(--shadow)}.hero-equations article:last-child{border-left-style:double;border-left-color:var(--orange-dark)}.hero-equations small{color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.1em}.hero-equations strong{display:block;margin:8px 0;font:700 28px "Trebuchet MS",Calibri,sans-serif;color:var(--navy-700)}.hero-equations p{margin:0 0 8px;font-size:17px}.hero-equations p b{color:var(--orange-dark)}.hero-equations span{color:var(--muted);font-size:13px;font-weight:750}
.module-shell{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px;margin-bottom:70px}
.stepper{display:grid;align-content:start;gap:5px;padding:8px;border:1px solid var(--line);border-radius:20px;background:rgba(255,253,248,.78)}.stepper button{display:flex;align-items:center;gap:8px;min-height:42px;padding:5px 8px;border:0;border-radius:11px;color:var(--muted);background:transparent;text-align:left}.stepper button b{display:grid;width:27px;height:27px;flex:0 0 27px;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--paper);font-size:10px}.stepper button span{font-size:11px;font-weight:800}.stepper button.active{color:var(--navy-700);background:#eaf3fc}.stepper button.active b{color:#fff;background:var(--blue)}.stepper button.done b{color:#fff;background:var(--green);border-style:double}.stepper button:disabled{cursor:not-allowed;opacity:.58}
.lesson-card{min-width:0;padding:32px;border:1px solid var(--line);border-radius:26px;background:var(--paper);box-shadow:var(--shadow)}
.lesson-top{display:flex;align-items:flex-start;justify-content:space-between;gap:22px}.lesson-top h2{max-width:760px;margin:0;font-size:clamp(32px,3.8vw,48px);line-height:1.02}.lesson-text{max-width:900px;margin:15px 0 0;color:var(--muted);font-size:17px;line-height:1.55}
.listen{min-height:39px;padding:0 14px;color:#fff;background:var(--blue);white-space:nowrap}.exit-course{min-height:38px;padding:0 13px;color:var(--muted);background:var(--paper)}
.voice-choice-control{display:grid;gap:2px;min-width:180px;color:var(--muted);font-size:9px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.voice-choice-control select{width:100%;min-height:36px;padding:0 28px 0 11px;border:1px solid var(--line);border-radius:999px;color:var(--navy);background:var(--paper);font-size:11px;font-weight:750;text-transform:none}
.speed{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--paper)}.speed button{width:34px;height:37px;border:0;color:var(--navy);background:transparent;font-weight:900}.speed span{min-width:54px;text-align:center;font-size:12px;font-weight:850}
.interactive-zone{min-height:390px;margin-top:22px;padding:22px;border:1px solid var(--line);border-radius:20px;background:#f8f6ef;overflow:hidden}
.lesson-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:46px;margin-top:18px}.nav{min-height:40px;padding:0 16px;color:#fff;background:var(--navy-700);border-color:var(--navy-700)}.nav.subtle{color:var(--navy-700);background:var(--paper);border-color:var(--line)}.nav:disabled{cursor:not-allowed;opacity:.45}.lesson-footer>span{color:var(--muted);font-size:12px;font-weight:800}.speech-warning{margin:8px 0 0;color:var(--red);font-size:12px}
.zone-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;height:100%}.zone-card{min-width:0;padding:18px;border:1px solid var(--line);border-radius:17px;background:var(--paper)}.zone-card h3{margin:5px 0 10px;color:var(--navy-700);font:700 23px "Trebuchet MS",Calibri,sans-serif}.zone-card p{margin:6px 0;color:var(--muted);line-height:1.45}.zone-card small,.label{color:var(--orange-dark);font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}
.big-value{display:block;margin:10px 0;color:var(--navy-700);font:700 38px "Trebuchet MS",Calibri,sans-serif}.big-value small{font-size:16px;color:inherit}
.definition-card{display:grid;align-content:center;text-align:center}.definition-card strong{font:700 29px "Trebuchet MS",Calibri,sans-serif;color:var(--navy-700)}.definition-card .equation{margin:12px 0;padding:13px;border:2px solid var(--blue);border-radius:14px;background:#eaf3fc;font-size:18px;font-weight:850}.definition-card:last-child .equation{border-style:double;border-color:var(--orange-dark);background:#fff0e9}
.measure-chain{display:grid;grid-template-columns:repeat(7,auto);align-items:center;justify-content:center;gap:9px;height:100%}.measure-chain article{min-width:105px;padding:17px 12px;border:1px solid var(--line);border-radius:15px;background:var(--paper);text-align:center}.measure-chain article b{display:block;margin-top:6px;color:var(--navy-700)}.measure-chain i{color:var(--orange-dark);font-style:normal;font-size:22px;font-weight:900}.measure-note{grid-column:1/-1;padding:12px;border-left:5px solid var(--green);border-left-style:double;border-radius:0 12px 12px 0;background:var(--green-soft);color:#175c3d;text-align:center;font-weight:800}
.reference-lab{display:grid;grid-template-columns:1fr 1fr;gap:16px}.reference-path{display:grid;gap:10px;padding:18px;border:1px solid var(--line);border-radius:17px;background:var(--paper)}.reference-path strong{font:700 25px "Trebuchet MS",Calibri,sans-serif;color:var(--navy-700)}.reference-path span{padding:10px;border-radius:12px;background:#eaf3fc;font-weight:800}.reference-path:last-child span{background:#fff0e9}.reference-rule{grid-column:1/-1;padding:13px;border-left:5px solid var(--navy-700);border-radius:0 12px 12px 0;background:var(--paper);text-align:center;font-weight:850}
.calc-lab{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(270px,.9fr);gap:16px;height:100%}.controls-card,.result-card{padding:18px;border:1px solid var(--line);border-radius:17px;background:var(--paper)}.control-row{display:grid;gap:7px;margin-bottom:15px}.control-row label{display:flex;justify-content:space-between;gap:10px;color:var(--navy-700);font-weight:850}.control-row input{width:100%;accent-color:var(--blue)}.control-row small{color:var(--muted)}.result-card{display:grid;align-content:center;text-align:center}.result-card .formula{margin:10px 0;padding:12px;border:2px solid var(--blue);border-radius:14px;background:#eaf3fc;font-weight:850}.result-card.sc .formula{border-style:double;border-color:var(--orange-dark);background:#fff0e9}.result-card .verdict{padding:10px;border-radius:12px;border-left:5px solid var(--green);border-left-style:double;background:var(--green-soft);color:#175c3d;font-weight:800}.result-card .verdict.warn{border-left-color:var(--amber);border-left-style:dotted;background:var(--amber-soft);color:#775000}.result-card .verdict.bad{border-left-color:var(--red);border-left-style:dashed;background:var(--red-soft);color:#8f2b22}
.useful-lab{display:grid;grid-template-columns:1fr;gap:14px}.pipe-story{display:grid;grid-template-columns:190px 1fr 170px;align-items:center;gap:0;min-height:155px}.organ-box{display:grid;place-items:center;min-height:110px;border:2px solid var(--navy-700);border-radius:17px;background:var(--paper);text-align:center}.organ-box b{color:var(--navy-700)}.suction-line{position:relative;height:12px;background:var(--blue);border-top:2px solid var(--navy-700);border-bottom:2px solid var(--navy-700)}.suction-line::after{content:"→";position:absolute;right:10px;top:-22px;color:#fff;font-size:22px}.point{position:absolute;top:50%;width:16px;height:16px;border:3px solid var(--paper);border-radius:50%;background:var(--orange-dark);transform:translate(-50%,-50%)}.point.outlet{left:5%}.point.suction{left:90%}.pipe-label{position:absolute;top:20px;transform:translateX(-50%);color:var(--muted);font-size:11px;font-weight:800;white-space:nowrap}.pipe-label.outlet{left:5%}.pipe-label.suction{left:90%}.useful-values{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.useful-values span{padding:10px;border:1px solid var(--line);border-radius:13px;background:var(--paper);text-align:center;color:var(--muted);font-size:11px}.useful-values b{display:block;margin-top:4px;color:var(--navy-700);font-size:20px}
.purpose-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.purpose-card{display:grid;gap:9px;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--paper)}.purpose-card strong{font:700 25px "Trebuchet MS",Calibri,sans-serif;color:var(--navy-700)}.purpose-card p{margin:0;color:var(--muted);line-height:1.45}.purpose-card .key{padding:11px;border-left:5px double var(--green);border-radius:0 11px 11px 0;background:var(--green-soft);color:#175c3d;font-weight:800}.purpose-card .limit{padding:11px;border-left:5px dotted var(--amber);border-radius:0 11px 11px 0;background:var(--amber-soft);color:#775000;font-weight:800}
.zeotrope-lab{display:grid;grid-template-columns:220px 1fr;gap:16px;height:100%}.mode-stack{display:grid;align-content:start;gap:8px}.mode-button{padding:13px;border:1px solid var(--line);border-radius:13px;color:var(--navy-700);background:var(--paper);font-weight:850;text-align:left}.mode-button.active{color:#fff;background:var(--navy-700)}.glide-card{padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--paper)}.glide-scale{position:relative;height:58px;margin:18px 0 12px;border-radius:14px;background:linear-gradient(90deg,#eaf3fc 0 50%,#fff0e9 50%)}.glide-scale::before{content:"POINT DE BULLE";position:absolute;left:11px;top:8px;color:var(--blue);font-size:10px;font-weight:900}.glide-scale::after{content:"POINT DE ROSÉE";position:absolute;right:11px;top:8px;color:var(--orange-dark);font-size:10px;font-weight:900}.glide-scale span{position:absolute;left:14px;right:14px;bottom:8px;display:flex;justify-content:space-between;font-weight:900}.glide-result{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.glide-result span{padding:10px;border:1px solid var(--line);border-radius:12px;text-align:center;color:var(--muted);font-size:11px}.glide-result b{display:block;color:var(--navy-700);font-size:18px}.wrong-reference{margin-top:10px;padding:10px;border-left:5px dashed var(--red);border-radius:0 11px 11px 0;background:var(--red-soft);color:#8f2b22;font-weight:800}
.protocol{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.protocol button{min-height:100px;padding:13px;border:1px solid var(--line);border-radius:15px;color:var(--navy);background:var(--paper);text-align:left}.protocol button b{display:grid;width:25px;height:25px;place-items:center;margin-bottom:7px;border-radius:50%;color:#fff;background:var(--navy-700)}.protocol button span{display:block;font-weight:850}.protocol button small{display:block;margin-top:4px;color:var(--muted)}.protocol button.checked{border:4px double var(--green);background:var(--green-soft)}.protocol-status{grid-column:1/-1;padding:10px;text-align:center;color:var(--muted);font-weight:800}
.state-lab{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px}.state-track{padding:20px;border:1px solid var(--line);border-radius:17px;background:var(--paper)}.state-axis{position:relative;height:66px;margin:22px 10px;border-radius:14px;background:linear-gradient(90deg,#eaf3fc 0 46%,#fff4e0 46% 54%,#fff0e9 54%)}.state-axis::before{content:"LIQUIDE SOUS-REFROIDI";position:absolute;left:10px;top:9px;color:var(--blue);font-size:10px;font-weight:900}.state-axis::after{content:"VAPEUR SURCHAUFFÉE";position:absolute;right:10px;top:9px;color:var(--orange-dark);font-size:10px;font-weight:900}.state-marker{position:absolute;left:50%;bottom:7px;width:16px;height:16px;border:3px solid var(--paper);border-radius:50%;background:var(--navy-700);transform:translateX(-50%)}.state-track input{width:100%;accent-color:var(--blue)}.state-readout{display:grid;align-content:center;padding:18px;border:1px solid var(--line);border-radius:17px;background:var(--paper);text-align:center}.state-readout strong{font:700 27px "Trebuchet MS",Calibri,sans-serif;color:var(--navy-700)}.state-readout p{margin:8px 0;color:var(--muted)}
.mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.mission-card{padding:15px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}.mission-card h3{margin:4px 0 12px;color:var(--navy-700);font:700 21px "Trebuchet MS",Calibri,sans-serif}.mission-card input{width:100%;accent-color:var(--blue)}.mission-values{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin-top:10px}.mission-values span{padding:8px;border-radius:10px;background:#eef3f7;text-align:center;color:var(--muted);font-size:10px}.mission-values b{display:block;color:var(--navy-700);font-size:17px}.mission-result{grid-column:1/-1;padding:11px;border-left:5px dotted var(--amber);border-radius:0 12px 12px 0;background:var(--amber-soft);color:#775000;text-align:center;font-weight:850}.mission-result.success{border-left-style:double;border-left-color:var(--green);background:var(--green-soft);color:#175c3d}
.quiz-wrap{display:grid;gap:13px}.quiz-head{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;font-weight:850}.quiz-progress{display:grid;grid-template-columns:repeat(10,1fr);gap:5px}.quiz-progress i{height:5px;border-radius:999px;background:#d7e0e8}.quiz-progress i.done{background:var(--green)}.quiz-progress i.current{background:var(--blue)}.quiz-question{margin:0;color:var(--navy-700);font:700 24px "Trebuchet MS",Calibri,sans-serif}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:9px}.quiz-option{min-height:55px;padding:10px 13px;border:2px solid var(--line);border-radius:13px;color:var(--navy);background:var(--paper);font-weight:800;text-align:left}.quiz-option.good{border:4px double var(--green);background:var(--green-soft)}.quiz-option.bad{border:3px dashed var(--red);background:var(--red-soft)}.quiz-feedback{margin:0;padding:10px;border-left:5px solid var(--navy-700);border-radius:0 11px 11px 0;background:var(--paper);line-height:1.4}.quiz-feedback .nav{float:right}.quiz-result{display:grid;place-items:center;gap:8px;text-align:center}.quiz-result>strong{font:700 58px "Trebuchet MS",Calibri,sans-serif;color:var(--navy-700)}.quiz-result.success{padding:20px;border:4px double var(--green);border-radius:18px;background:var(--green-soft)}.quiz-result.retry{padding:20px;border:3px dotted var(--amber);border-radius:18px;background:var(--amber-soft)}
.final-message{padding:70px 20px 90px;text-align:center}.final-message h2{max-width:900px;margin:0 auto 24px;font-size:clamp(34px,5vw,65px);line-height:1.04}.pillars{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}.pillars span,.pillars strong{padding:10px 15px;border:1px solid var(--line);border-radius:999px;background:var(--paper)}.pillars strong{color:#fff;background:var(--navy-700)}.pillars i{color:var(--orange-dark);font-style:normal;font-weight:900}.next-brick{max-width:760px;margin:32px auto 0;display:grid;gap:8px;padding:20px 24px;border:1px solid var(--line);border-radius:20px;background:var(--paper);box-shadow:var(--shadow)}.next-brick small{color:var(--orange-dark);font-weight:900;letter-spacing:.1em}.next-brick strong{color:var(--navy-700);font:700 24px "Trebuchet MS",Calibri,sans-serif}.next-brick span{color:var(--muted);line-height:1.5}.next-tool{justify-self:center;margin-top:5px;padding:10px 15px;border-radius:999px;color:#fff;background:var(--blue);font-weight:850;text-decoration:none}
.refs{padding:28px 32px;margin-bottom:30px;border:1px solid var(--line);border-radius:22px;background:var(--paper);box-shadow:var(--shadow)}.refs h2{font-size:31px}.refs li{margin:10px 0;line-height:1.5}
footer{min-height:76px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);color:var(--muted);font-size:12px}footer button{border:0;color:var(--blue);background:transparent;font-weight:850}

body.course-running,body.summary-running{height:100dvh;overflow:hidden}
.course-running .module-shell{position:fixed;inset:0;z-index:50;width:100%;height:100dvh;margin:0;padding:10px;display:grid;grid-template-columns:154px minmax(0,1fr);gap:10px;background:var(--cream)}
.course-running .stepper{align-self:stretch;height:100%;min-height:0;padding:6px;gap:2px;overflow:hidden;border-radius:16px;grid-template-rows:repeat(13,minmax(0,1fr))}.course-running .stepper button{min-height:0;padding:3px 6px;gap:7px;border-radius:9px}.course-running .stepper button b{width:24px;height:24px;flex-basis:24px;font-size:9px}.course-running .stepper button span{font-size:10px}
.course-running .lesson-card{min-width:0;min-height:0;height:100%;padding:13px 17px;border-radius:18px;overflow:hidden;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto auto}.course-running .lesson-top{gap:10px}.course-running .lesson-top .eyebrow{margin-bottom:4px;font-size:9px}.course-running .lesson-top h2{font-size:clamp(24px,2.7vw,38px);line-height:1}.course-running .lesson-text{max-width:none;margin:5px 0 0;font-size:13px;line-height:1.3}.course-running .voice-controls{gap:5px}.course-running .listen,.course-running .exit-course{min-height:32px;padding:0 10px}.course-running .voice-choice-control{min-width:150px}.course-running .voice-choice-control span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.course-running .voice-choice-control select{min-height:32px;max-width:180px}.course-running .speed button{width:29px;height:31px}.course-running .speed span{min-width:46px;font-size:10px}.course-running .interactive-zone{min-height:0;height:100%;margin-top:6px;padding:9px;border-radius:15px;overflow:hidden}.course-running .lesson-footer{margin-top:5px;min-height:33px}.course-running .lesson-footer .nav{min-height:31px;padding:0 12px;font-size:11px}.course-running #status{font-size:10px}.course-running .zone-card,.course-running .controls-card,.course-running .result-card,.course-running .reference-path,.course-running .purpose-card,.course-running .glide-card,.course-running .state-track,.course-running .state-readout,.course-running .mission-card{padding:9px;border-radius:12px}.course-running .zone-card h3{font-size:18px;margin:2px 0 5px}.course-running .zone-card p{font-size:12px;line-height:1.3}.course-running .big-value{font-size:29px;margin:4px 0}.course-running .control-row{gap:3px;margin-bottom:7px}.course-running .control-row label{font-size:11px}.course-running .result-card .formula{margin:5px 0;padding:7px}.course-running .definition-card strong{font-size:22px}.course-running .definition-card .equation{margin:6px 0;padding:8px;font-size:15px}.course-running .measure-chain article{min-width:90px;padding:9px 7px}.course-running .measure-chain{gap:5px}.course-running .measure-note{padding:7px;font-size:12px}.course-running .pipe-story{min-height:105px}.course-running .organ-box{min-height:75px}.course-running .useful-values span{padding:6px}.course-running .useful-values b{font-size:16px}.course-running .purpose-card strong{font-size:19px}.course-running .purpose-card p,.course-running .purpose-card .key,.course-running .purpose-card .limit{font-size:11px;line-height:1.25}.course-running .glide-scale{height:48px;margin:8px 0}.course-running .glide-result span{padding:6px}.course-running .wrong-reference{margin-top:6px;padding:7px;font-size:11px}.course-running .protocol{gap:5px}.course-running .protocol button{min-height:70px;padding:7px}.course-running .protocol button small{font-size:10px}.course-running .state-axis{height:52px;margin:8px}.course-running .quiz-question{font-size:19px}.course-running .quiz-option{min-height:42px;padding:7px 10px;font-size:12px}.course-running .quiz-feedback{padding:7px;font-size:11px}.course-running .quiz-result>strong{font-size:46px}
.summary-running .final-message{position:fixed;inset:0;z-index:60;display:grid;align-content:center;padding:20px;background:var(--cream)}.summary-running .final-message h2{margin:5px auto 12px;font-size:clamp(32px,5vw,62px)}.summary-running .next-brick{width:min(720px,100%);margin:12px auto 50px}.summary-running footer{position:fixed;left:20px;right:20px;bottom:0;z-index:61;min-height:48px;background:rgba(247,241,231,.96)}

@media(max-width:850px){.hero{grid-template-columns:1fr}.hero-equations{grid-template-columns:1fr 1fr}.module-shell{grid-template-columns:1fr}.stepper{grid-template-columns:repeat(13,1fr)}.stepper button{justify-content:center}.stepper button span{display:none}}
@media(max-width:650px){
  .experience{width:min(calc(100% - 20px),560px)}.topbar-actions .pill:first-child{display:none}.topbar-actions .pill:last-child{min-height:36px;padding:0 10px;font-size:11px}.brand small{display:none}.hero{padding:38px 0}.hero h1{font-size:35px;overflow-wrap:anywhere}.hero-equations{grid-template-columns:1fr}.learning-goals{display:grid}.topbar{min-height:68px;gap:6px}
  .course-running .module-shell{grid-template-columns:1fr;grid-template-rows:30px minmax(0,1fr);padding:4px;gap:4px}.course-running .stepper{height:30px;padding:2px;gap:1px;grid-template-columns:repeat(13,minmax(0,1fr));grid-template-rows:1fr;border-radius:9px}.course-running .stepper button{padding:0}.course-running .stepper button b{width:21px;height:21px;flex-basis:21px;font-size:7px}.course-running .lesson-card{padding:7px 9px;border-radius:13px}.course-running .lesson-top{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px}.course-running .lesson-top .eyebrow{font-size:8px}.course-running .lesson-top h2{font-size:clamp(18px,5.7vw,24px)}.course-running .voice-controls{align-self:start;flex-wrap:nowrap}.course-running .voice-choice-control,.course-running .speed{display:none}.course-running .exit-course{width:30px;padding:0;font-size:0}.course-running .exit-course::before{content:"×";font-size:20px}.course-running .listen{width:32px;padding:0}.course-running .listen b{display:none}.course-running .lesson-text{font-size:12px;line-height:1.2;margin-top:3px}.course-running .interactive-zone{margin-top:3px;padding:5px;border-radius:10px}.course-running .lesson-footer{margin-top:3px;min-height:29px}.course-running .lesson-footer .nav{min-height:28px;padding:0 7px;font-size:9px}.course-running #status{font-size:8px}
  .course-running .zone-grid,.course-running .reference-lab,.course-running .purpose-grid,.course-running .mission-grid{grid-template-columns:1fr 1fr;gap:5px}.course-running .zone-card,.course-running .controls-card,.course-running .result-card,.course-running .reference-path,.course-running .purpose-card,.course-running .glide-card,.course-running .state-track,.course-running .state-readout,.course-running .mission-card{padding:6px}.course-running .zone-card h3{font-size:14px}.course-running .zone-card p{font-size:10px}.course-running .definition-card strong{font-size:16px}.course-running .definition-card .equation{font-size:11px;padding:5px}.course-running .calc-lab{grid-template-columns:1.1fr .9fr;gap:5px}.course-running .control-row{margin-bottom:4px}.course-running .control-row label{font-size:9px}.course-running .control-row small{font-size:8px}.course-running .big-value{font-size:22px}.course-running .result-card .formula,.course-running .result-card .verdict{font-size:9px;padding:5px}.course-running .measure-chain{grid-template-columns:repeat(4,1fr);align-content:center}.course-running .measure-chain article{min-width:0;padding:5px;font-size:9px}.course-running .measure-chain i{display:none}.course-running .measure-note{grid-column:1/-1;font-size:9px}.course-running .reference-path strong{font-size:15px}.course-running .reference-path span{padding:5px;font-size:9px}.course-running .reference-rule{font-size:9px;padding:5px}.course-running .pipe-story{grid-template-columns:85px 1fr 78px;min-height:70px}.course-running .organ-box{min-height:55px;font-size:9px}.course-running .pipe-label{display:none}.course-running .useful-values{gap:3px}.course-running .useful-values span{padding:4px;font-size:8px}.course-running .useful-values b{font-size:13px}.course-running .purpose-card{gap:4px}.course-running .purpose-card strong{font-size:14px}.course-running .purpose-card p,.course-running .purpose-card .key,.course-running .purpose-card .limit{font-size:9px;padding:4px}.course-running .zeotrope-lab{grid-template-columns:90px 1fr;gap:5px}.course-running .mode-button{padding:6px;font-size:9px}.course-running .glide-scale{height:42px;margin:3px 0}.course-running .glide-scale::before,.course-running .glide-scale::after{font-size:7px}.course-running .glide-result{gap:3px}.course-running .glide-result span{padding:4px;font-size:8px}.course-running .glide-result b{font-size:12px}.course-running .protocol{grid-template-columns:repeat(3,1fr);gap:3px}.course-running .protocol button{min-height:58px;padding:4px}.course-running .protocol button b{width:18px;height:18px;margin-bottom:2px;font-size:8px}.course-running .protocol button span{font-size:8px}.course-running .protocol button small{font-size:7px}.course-running .protocol-status{padding:4px;font-size:8px}.course-running .state-lab{grid-template-columns:1fr 115px;gap:5px}.course-running .state-axis{height:45px;margin:3px}.course-running .state-axis::before,.course-running .state-axis::after{font-size:6px}.course-running .state-readout strong{font-size:15px}.course-running .state-readout p{font-size:9px}.course-running .mission-card h3{font-size:13px;margin-bottom:4px}.course-running .mission-values{gap:3px;margin-top:4px}.course-running .mission-values span{padding:3px;font-size:7px}.course-running .mission-values b{font-size:11px}.course-running .mission-result{grid-column:1/-1;padding:5px;font-size:8px}.course-running .quiz-wrap{gap:5px}.course-running .quiz-head{font-size:8px}.course-running .quiz-progress{gap:2px}.course-running .quiz-question{font-size:13px}.course-running .quiz-options{gap:4px}.course-running .quiz-option{min-height:32px;padding:4px 6px;font-size:9px}.course-running .quiz-feedback{font-size:8px;padding:4px}.course-running .quiz-feedback .nav{min-height:24px}.course-running .quiz-result{gap:3px}.course-running .quiz-result>strong{font-size:34px}.course-running .quiz-result h3,.course-running .quiz-result p{margin:0;font-size:10px}
  .summary-running .final-message{padding:10px}.summary-running .final-message h2{font-size:27px}.summary-running .pillars{font-size:9px}.summary-running .pillars span,.summary-running .pillars strong{padding:6px 8px}.summary-running .next-brick{padding:10px;margin:5px auto 0}.summary-running .next-brick strong{font-size:18px}.summary-running .next-brick span{font-size:10px}.summary-running footer{left:10px;right:10px}
}
@media print{.topbar-actions,.voice-controls,.lesson-footer,.start,.ambient,.next-tool,footer button{display:none!important}body{color:#000;background:#fff}.experience{width:100%}.hero,.module-shell{display:block;min-height:0}.stepper{display:none}.lesson-card,.zone-card,.hero-equations article,.refs,.next-brick{box-shadow:none;background:#fff}.interactive-zone{background:#fff}.final-message{padding:30px 0}@page{margin:15mm}}