/* Mind Quest | Math Foundation: calm mobile-first layout */
:root{--navy:#0e2748;--ink:#173b59;--muted:#657e91;--teal:#0b9da3;--line:#dbe7ef;--bg:#f4f8fc;--good:#118057}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 Tahoma,"Noto Sans Arabic","Segoe UI",Arial,sans-serif}
button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #edae43;outline-offset:3px}
.wrap{width:min(960px,calc(100% - 30px));margin:auto}.head{background:var(--navy);color:#fff;box-shadow:0 6px 26px #0e274824}.head-inner{min-height:78px;padding:12px 0;display:flex;align-items:center;justify-content:space-between;gap:12px}.head-inner span{font-size:18px;font-weight:900}.head-inner small{display:block;color:#a4d5d9;font-size:11px;font-weight:500}.logo{text-decoration:none;color:#e8fbff;padding:9px 13px;border:1px solid #335a77;border-radius:13px;font-size:13px;font-weight:800}
.hero{padding:22px 0 16px}.hero h1{font-size:clamp(24px,4vw,33px);line-height:1.4;margin:4px 0}.hero p{margin:0;color:#60778a;font-size:14px}.hero .eyebrow{font-size:12px;color:#087f8c;font-weight:900}
.panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(15px,3vw,25px);box-shadow:0 7px 24px #234a650a;margin:7px 0}.panel-head{display:flex;gap:12px;align-items:center;margin-bottom:19px}.symbol{background:#e0f7f3;border-radius:14px;min-width:48px;height:48px;display:grid;place-items:center;font-size:25px}.panel-head h2{margin:0;font-size:clamp(20px,3vw,24px)}.panel-head p{margin:2px 0 0;color:var(--muted);font-size:13px}.page-title{font-size:18px;margin:0 0 14px}
.quick-search{width:100%;border:1px solid var(--line);border-radius:13px;padding:10px 14px;min-height:45px;margin:0 0 15px;background:#f8fbfd;color:var(--ink)}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.skill{width:100%;min-width:0;border:1px solid #d6e7ed;border-radius:16px;background:#f0fcf7;text-align:right;min-height:110px;padding:15px;display:flex;align-items:center;gap:12px;color:var(--ink);transition:transform .12s,border-color .12s}.skill:nth-child(5n+2){background:#eef5ff}.skill:nth-child(5n+3){background:#fff7e4}.skill:nth-child(5n+4){background:#fff0f5}.skill:nth-child(5n+5){background:#f0ecff}.skill:hover{border-color:#20acaf;transform:translateY(-2px)}.skicon{font-size:29px;flex:0 0 43px;text-align:center}.skill-body{flex:1;min-width:0}.skill strong{font-size:15px;line-height:1.5;display:block}.skill small{font-size:11px;color:#657c8c;display:block;line-height:1.5;margin-top:3px}.open-indicator{width:30px;height:30px;border-radius:50%;background:#ffffffbe;display:grid;place-items:center;color:#187c86;flex:0 0 30px;font-size:22px}.progress-track{height:5px;background:#cad9e2;border-radius:20px;overflow:hidden;margin-top:10px}.progress-track span{display:block;height:100%;background:#0daea4;border-radius:20px}.sub-link{display:inline-block;margin-top:20px;font-size:13px;font-weight:800;color:#167185;text-decoration:none}.catalog-hint{margin:0 0 13px;color:#61798e;font-size:13px}
.breadcrumb{font-size:12px;color:#6b8595;margin-bottom:9px}.breadcrumbs-btn{border:0;background:none;color:#137d8a;font-weight:800;padding:0 0 7px}.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin:16px 0 18px}.step{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border:1px solid #dce8ef;border-radius:14px;padding:10px 5px;background:#f6f9fc;color:#5d788c;min-height:75px}.step.active{background:#e0f8f2;border-color:#0eaba4;color:#075f64}.step span{font-size:20px}.step small{font-size:11px;font-weight:900;line-height:1.5;text-align:center}
.stage{padding:clamp(15px,3vw,23px);border:1px solid #deebf1;border-radius:16px;background:#f8fbfd;min-height:210px}.stage h3{font-size:19px;margin:0 0 10px}.stage p{margin:9px 0}.concept{background:#e9f6fa;border-radius:12px;padding:13px;margin-top:14px;font-size:14px}.case{font-weight:900;font-size:17px}.example{background:#e9f8f4;padding:15px;border-radius:13px;margin-top:12px}.tip,.note{font-size:13px;color:#637d8a}.example .revealed{padding:12px 3px;border-bottom:1px solid #c7e4df}.example .revealed b{color:#087b7e}.done{color:#12805b}.actions{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-top:17px}.primary,.secondary{border-radius:13px;min-height:47px;padding:9px 17px;font-weight:900;border:0}.primary{color:#fff;background:linear-gradient(110deg,#0786a0,#11b4aa)}.secondary{background:#f0f6fa;color:#255b74;border:1px solid #d7e6ef}.primary:disabled{opacity:.5;cursor:not-allowed}.options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0}.answer{border:1px solid #d6e6ee;background:#fff;color:var(--ink);padding:12px;border-radius:12px;min-height:56px;text-align:right;display:flex;align-items:center;gap:8px;font-weight:900}.answer.right{border-color:#0c986f;background:#e1f7ea}.answer.wrong{border-color:#cb6c76;background:#ffedf0}.answer:disabled{opacity:1;cursor:default}.letter{width:26px;height:26px;border-radius:9px;display:grid;place-items:center;background:#eaf2f7;color:#416c85;flex:none}.feedback{padding:12px 15px;margin:12px 0;border-radius:13px}.feedback.yes{background:#e2f9ed;color:#14684d}.feedback.no{background:#fff3e5;color:#94601f}.feedback p{margin:4px 0;color:#486677;font-size:13px}.minibar{height:7px;background:#e1eaf0;border-radius:30px;margin:12px 0 16px;overflow:hidden}.minibar i{display:block;height:100%;background:#11aca2}.test-top{display:flex;align-items:center;justify-content:space-between;color:#647d8d;font-size:13px}.result{text-align:center;background:#edf9f5;border-radius:14px;padding:20px}.result span{font-size:32px}.result b{display:block;font-size:34px;color:#088e8e}.stage details{background:#fff;border:1px solid #dbe8ee;border-radius:12px;padding:10px 12px;margin:9px 0}.stage summary{cursor:pointer;font-weight:800}.foot{text-align:center;color:#708699;font-size:11px;padding:18px 0 30px}.detail-title{margin:0;color:#526e80;font-size:13px}.more-links{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}.more-links a{font-size:12px;color:#226a81;text-decoration:none}
@media(max-width:700px){.cards{grid-template-columns:1fr}.skill{min-height:84px;padding:12px 13px}.head-inner span{font-size:16px}.steps{gap:5px}.step{min-height:67px;padding:7px 3px}.step small{font-size:10px}.stage{min-height:200px}.actions .primary,.actions .secondary{flex:1}.hero{padding-top:19px}.options{gap:7px}.answer{font-size:14px;padding:11px 7px}.wrap{width:calc(100% - 26px)}}
@media(max-width:360px){.step small{font-size:9px}.skill strong{font-size:14px}.answer{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.skill{transition:none}}

.mini-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:14px 0}.mini-card{background:#fff;border:1px solid #d5e8eb;border-radius:12px;padding:10px 12px;display:flex;align-items:center;gap:9px;min-height:68px}.mini-card strong{background:#e4f8f3;color:#0c797c;padding:3px 9px;min-width:40px;text-align:center;border-radius:9px;font-size:18px}.mini-card span{font-size:12px;color:#476c80;line-height:1.5}@media(max-width:370px){.mini-card{padding:8px 6px;gap:6px}.mini-card span{font-size:11px}}

/* v1.2.3: scaled geometry figures only for lessons that need them */
.mq-foundation-geometry{background:#fff;border:1px solid #cfdfeb;border-radius:15px;padding:8px;margin:13px 0;display:flex;justify-content:center;overflow:hidden;direction:ltr}
.mq-foundation-geometry svg{width:min(100%,420px);height:auto;display:block;aspect-ratio:420/260;overflow:visible;font-family:Tahoma,'Segoe UI',Arial,sans-serif}
@media(max-width:480px){.mq-foundation-geometry{padding:4px}.mq-foundation-geometry svg{width:100%}}