@font-face {
  font-family: "DIN Next LT Arabic";
  src: url("../fonts/DINNextLTArabic-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}


:root{
  --scfhs-blue:#00416B;--scfhs-deep:#002343;--scfhs-green:#00C08B;--scfhs-green-dark:#008661;
  --text:#2F3B3E;--text-secondary:#4D5858;--muted:#6C787A;--line:#D4DEE0;--line-strong:#B8C6C9;
  --surface:#FFFFFF;--surface-soft:#F7FAFA;--success-soft:#E6F9F4;--error:#D02C2F;--error-soft:#FBEAEA;
  --blue-soft:#EAF1F5;--shadow-1:0 2px 8px rgba(0,35,67,.08);--shadow-3:0 18px 52px rgba(0,35,67,.22);
  --font:"DIN Next LT Arabic","DIN Next","DINNextLTArabic","Helvetica Neue",Helvetica,Arial,sans-serif;
  --label:14px;--body:16px;--subtitle:20px;--heading:24px;--display:32px;
}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;background:#fff;color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}body{overflow:hidden}.app-shell{width:100%;height:100%;min-height:680px;padding:6px;background:#fff;overflow:hidden}button{font:inherit}h1,h2,h3,p{margin:0}.screen{position:relative;width:100%;height:100%;min-height:668px;border:1px solid var(--line);border-radius:16px;background:var(--surface-soft);overflow:hidden}.btn{height:48px;min-width:118px;padding:0 20px;border-radius:12px;border:1px solid transparent;font-size:16px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;white-space:nowrap}.btn.primary{background:var(--scfhs-green);color:#fff}.btn.primary:hover{background:var(--scfhs-green-dark)}.btn.secondary{background:#fff;color:var(--scfhs-blue);border-color:var(--scfhs-blue)}.btn.secondary:hover{background:var(--blue-soft)}.btn:disabled{background:#F2F5F5;color:#97A4A6;border-color:#DCE4E6;cursor:not-allowed}.btn:focus-visible,.slider-hit:focus-visible,.level-label:focus-visible{outline:3px solid rgba(0,192,139,.24);outline-offset:2px}
/* locked start */
.start{display:grid;grid-template-columns:minmax(420px,48%) minmax(0,52%);height:100%;min-height:668px;background:#fff}.start-copy{padding:56px 48px 56px 56px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:16px;min-width:0;background:#fff}.start h1{font-size:var(--display);line-height:1.18;color:var(--scfhs-blue);font-weight:700;max-width:560px}.start p{font-size:var(--body);line-height:1.5;color:var(--text-secondary);max-width:540px}.start .btn{margin-top:8px}.start-art{min-width:0;background:#fff;border:0;display:flex;align-items:center;justify-content:center;padding:40px 48px 40px 8px;overflow:hidden}.start-art img{display:block;width:min(92%,780px);max-width:100%;height:auto;object-fit:contain;object-position:center;flex:0 0 auto}
/* instructions */
.instructions{display:grid;grid-template-rows:minmax(0,1fr) 80px;background:var(--surface-soft)}.instructions-main{padding:40px 48px 24px;display:flex;align-items:center;justify-content:center;min-height:0}.instructions-wrap{width:min(1180px,100%);min-width:0;margin:0}.instructions h1{font-size:var(--display);color:var(--scfhs-blue);line-height:1.18;margin-bottom:0;font-weight:700}.instructions-intro{font-size:var(--body);line-height:1.5;color:var(--text-secondary);margin-top:12px;margin-bottom:24px;max-width:760px}.instruction-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.instruction-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;min-height:220px;display:flex;flex-direction:column;gap:14px;min-width:0}.instruction-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;color:var(--scfhs-blue);margin:0}.instruction-icon svg{width:48px;height:48px;fill:none;stroke:currentColor;stroke-width:2.15;stroke-linecap:round;stroke-linejoin:round}.instruction-icon .accent{stroke:var(--scfhs-green)}.instruction-icon .accent-fill{fill:var(--scfhs-green);stroke:none}.instruction-card h2{font-size:var(--subtitle);line-height:1.18;color:var(--scfhs-deep);margin:0;font-weight:700}.instruction-card p{font-size:var(--body);line-height:1.5;color:var(--text-secondary);margin:0}.instruction-note{margin-top:16px;border-left:4px solid var(--scfhs-green);background:#fff;padding:14px 16px;border-radius:0 12px 12px 0;font-size:var(--body);line-height:1.5;color:var(--text)}
/* shared task shell */
.activity{display:grid;grid-template-rows:82px minmax(0,1fr) 76px;background:var(--surface-soft)}.header{padding:14px 24px;border-bottom:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;min-width:0}.header-title h1{font-size:var(--heading);line-height:1.18;color:var(--scfhs-blue);font-weight:700}.header-title p{font-size:var(--label);line-height:1.35;color:var(--muted);margin-top:5px}.progress{display:flex;align-items:center;gap:12px;flex:0 0 auto}.progress strong{font-size:var(--label);line-height:1.35;color:var(--text-secondary);font-weight:500}.progress-track{width:180px;height:8px;background:var(--line);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:var(--scfhs-green);border-radius:999px;transition:width .2s ease}.content{min-height:0;padding:14px 12px;background:var(--surface-soft);display:flex;justify-content:center;overflow:hidden}.work-card{width:100%;height:100%;min-height:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:grid;grid-template-rows:minmax(0,1fr) 176px}.scenario{min-height:0;padding:14px 22px 20px;display:grid;grid-template-columns:minmax(360px,42%) minmax(0,1fr);gap:28px;align-items:center}.scene-image{height:282px;align-self:start;border:1px solid var(--line);border-radius:16px;background:#F8FAFA;display:grid;place-items:center;overflow:hidden;min-width:0}.scene-image img{width:100%;height:100%;object-fit:contain;display:block}.scenario-copy{min-width:0}.time{font-size:var(--label);line-height:1.35;color:var(--scfhs-green-dark);font-weight:700;margin-bottom:10px}.context{display:inline-block;font-size:var(--label);line-height:1.35;color:var(--scfhs-blue);font-weight:500;background:var(--blue-soft);border-radius:8px;padding:6px 10px;margin-bottom:14px}.scenario-copy p{font-size:var(--body);line-height:1.5;color:var(--text);max-width:720px}.slider-zone{border-top:1px solid var(--line);padding:16px 22px 14px;background:#fff;display:grid;grid-template-rows:auto 1fr;gap:10px}.slider-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.slider-head h2{font-size:var(--subtitle);line-height:1.18;color:var(--scfhs-blue)}.slider-head p{font-size:var(--label);line-height:1.35;color:var(--muted);margin-top:5px}.selection{font-size:var(--label);line-height:1.35;color:var(--scfhs-blue);font-weight:700;background:var(--blue-soft);border-radius:8px;padding:8px 12px;white-space:nowrap}.slider-control{position:relative;height:94px;user-select:none;touch-action:none}.slider-hit{position:absolute;left:12.5%;right:12.5%;top:3px;height:38px;border:0;background:transparent;cursor:pointer;z-index:6}.track{position:absolute;left:12.5%;right:12.5%;top:20px;height:6px;border-radius:999px;background:#C8D3D5}.point-row{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,1fr);pointer-events:none}.point-cell{position:relative}.point{position:absolute;left:50%;top:10px;width:24px;height:24px;border-radius:50%;background:#fff;border:3px solid #A6B6BA;transform:translateX(-50%);z-index:2}.point.selected{border-color:var(--scfhs-green);background:var(--success-soft)}.thumb{position:absolute;top:5px;width:34px;height:34px;border-radius:50%;background:#fff;border:9px solid var(--scfhs-green);box-shadow:0 0 0 3px rgba(0,192,139,.13);transform:translateX(-50%);z-index:7;pointer-events:none}.thumb.static{width:30px;height:30px;top:7px;border-width:7px}.labels{position:absolute;left:0;right:0;top:46px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}.level-label{border:0;background:transparent;text-align:center;padding:0 7px;cursor:pointer;color:var(--text-secondary)}.level-label strong{display:block;font-size:16px;line-height:1.3;color:var(--scfhs-blue)}.level-label span{display:block;font-size:14px;line-height:1.35;margin-top:2px;color:var(--text-secondary)}.level-label.selected strong{color:var(--scfhs-green-dark)}.footer{border-top:1px solid var(--line);background:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:flex-end;gap:16px}.footer.split{justify-content:space-between}.footer-note{font-size:var(--label);line-height:1.35;color:var(--muted)}
/* feedback - locked shared shell */
.backdrop{position:absolute;inset:0;background:rgba(0,35,67,.34);z-index:20;display:grid;place-items:center;padding:24px}.feedback{width:min(620px,calc(100% - 48px));max-height:calc(100% - 48px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-3);padding:28px 32px 24px;display:flex;flex-direction:column;align-items:stretch}.feedback-status{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:18px}.feedback-icon{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin-bottom:10px}.feedback-icon svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}.feedback.correct .feedback-icon{background:var(--success-soft);color:var(--scfhs-green-dark)}.feedback.incorrect .feedback-icon{background:var(--error-soft);color:var(--error)}.feedback h2{font-size:var(--heading);line-height:1.18;margin:0}.feedback.correct h2{color:var(--scfhs-green-dark)}.feedback.incorrect h2{color:var(--error)}.feedback-body{font-size:var(--body);line-height:1.5;color:var(--text);text-align:left;overflow:auto;min-height:0}.feedback-actions{padding-top:20px;display:flex;justify-content:center;align-items:center;min-height:48px}.feedback-actions .btn{min-width:188px}
/* summary */
.summary-screen{display:grid;grid-template-rows:minmax(0,1fr) 80px;background:var(--surface-soft)}.summary-main{padding:40px 48px 24px;display:flex;align-items:center;justify-content:center;min-height:0}.summary-content{width:min(1180px,100%);min-width:0}.summary-heading{margin-bottom:24px}.summary-heading h1{font-size:var(--display);line-height:1.18;color:var(--scfhs-blue)}.summary-heading p{font-size:var(--body);line-height:1.5;color:var(--text-secondary);margin-top:10px;max-width:820px}.summary-path{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.summary-step{border:1px solid var(--line);border-top:4px solid var(--scfhs-blue);border-radius:16px;padding:15px 16px 18px;background:#fff;min-width:0;position:relative}.summary-step .sum-time{display:block;font-size:var(--label);color:var(--muted);margin-bottom:8px}.summary-step strong{display:block;font-size:var(--body);color:var(--scfhs-blue);margin-bottom:7px}.summary-step span{display:block;font-size:var(--label);line-height:1.35;color:var(--text-secondary)}.summary-takeaway{margin-top:20px;padding:12px 16px;border-left:4px solid var(--scfhs-green);background:transparent;font-size:var(--body);line-height:1.5;color:var(--text)}.summary-takeaway strong{color:var(--scfhs-blue)}
/* completion */
.complete{display:grid;place-items:center;background:#F1FAF7;padding:32px}.complete-card{width:min(760px,100%);background:#fff;border:1px solid #DDECE7;border-radius:24px;padding:42px 34px;text-align:center;box-shadow:0 6px 18px rgba(0,35,67,.10)}.success{width:76px;height:76px;border-radius:50%;background:var(--success-soft);color:var(--scfhs-green-dark);display:grid;place-items:center;margin:0 auto 18px}.success svg{width:34px;height:34px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}.complete h1{font-size:var(--display);line-height:1.18;color:var(--scfhs-blue);margin-bottom:10px}.complete p{font-size:var(--body);line-height:1.5;color:var(--text-secondary)}
@media(max-width:1200px){.start-copy{padding:48px 38px 48px 42px}.instructions-main{padding:32px 32px 20px}.header{padding:12px 20px}.content{padding:14px 10px}.footer{padding:14px 18px}.scenario{grid-template-columns:minmax(320px,40%) minmax(0,1fr);gap:20px;padding-top:12px}.scene-image{height:274px}.progress-track{width:150px}}
@media(max-width:900px){body{overflow-y:auto}.app-shell{min-height:100%;padding:4px}.screen{min-height:calc(100vh - 8px);overflow:visible}.start{grid-template-columns:1fr}.start-copy{padding:38px 30px 18px;order:1}.start-art{order:2;padding:18px;min-height:260px}.start-art img{width:min(100%,700px);max-height:300px}.instructions{grid-template-rows:auto 80px}.instructions-main{padding:28px 22px;align-items:flex-start}.instruction-grid{grid-template-columns:1fr}.instruction-card{min-height:230px;padding:20px}.activity{grid-template-rows:auto auto auto}.header{padding:14px 18px}.progress{margin-left:auto}.content{padding:14px 10px;overflow:auto}.work-card{height:auto;grid-template-rows:auto auto}.scenario{grid-template-columns:1fr;padding:18px}.scene-image{height:auto;aspect-ratio:16/8.5}.slider-zone{padding:16px 18px}.summary-screen{grid-template-rows:auto 80px}.summary-main{padding:28px 22px 20px;align-items:flex-start}.summary-heading{margin-bottom:20px}.summary-path{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){:root{--subtitle:18px;--heading:22px;--display:28px}body{overflow:auto}.app-shell{height:auto;min-height:680px;padding:0;overflow:visible}.screen{height:auto;min-height:680px;border-left:0;border-right:0;border-radius:0;overflow:visible}.instructions{min-height:680px;grid-template-rows:auto auto}.instructions-main{padding:28px 18px 20px;align-items:flex-start}.instruction-grid{grid-template-columns:1fr}.instruction-card{min-height:0;padding:18px;display:grid;grid-template-columns:48px minmax(0,1fr);column-gap:14px;row-gap:4px}.instruction-card h2,.instruction-card p{grid-column:2}.instruction-card .instruction-icon{grid-row:1/3}.header{display:block}.progress{margin:10px 0 0}.progress-track{width:min(180px,48vw)}.content{padding:12px 10px;overflow:visible}.slider-head{display:block}.selection{display:inline-block;margin-top:8px;white-space:normal}.labels{top:47px}.level-label span{display:none}.slider-control{height:80px}.footer{padding:12px 14px;position:sticky;bottom:0;z-index:10}.footer-note{display:none}.feedback{padding:22px 18px}.summary-path{grid-template-columns:1fr}}
@media(max-width:480px){.app-shell{padding:0}.screen{border-radius:0;border-left:0;border-right:0;min-height:100vh}.start-copy{padding:30px 22px 14px}.start-art{padding:8px 18px 22px}.instructions-main{padding:24px 16px}.instruction-card{padding:18px}.header{padding:12px 16px}.content{padding:12px 10px}.scenario{padding:14px;gap:14px}.scene-image{aspect-ratio:16/9}.slider-zone{padding:14px 10px}.slider-head h2{font-size:18px}.level-label{padding:0 2px}.level-label strong{font-size:14px}.footer{padding:8px 12px}.btn{min-width:112px}.backdrop{padding:14px}.feedback{width:100%;padding:20px 16px}.summary-main{padding:24px 16px 18px}.complete{padding:16px}.complete-card{padding:34px 22px}}