.hub-shell{max-width:1250px;margin:auto;padding:20px 0 50px}.hub-masthead{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:10px 0 22px}.hub-masthead h1{font-size:clamp(32px,4vw,48px);margin:6px 0}.hub-tools{display:flex;flex-wrap:wrap;gap:8px}.hub-nav{display:flex;gap:5px;border-bottom:1px solid #d5dfd6;padding:0 0 12px;margin:0 0 28px;flex-wrap:wrap}.hub-nav button{background:transparent;color:#24433e;border:0;border-radius:12px;padding:13px 18px;font-weight:650}.hub-nav button[aria-current],.hub-practice-nav button[aria-current]{background:#163e38;color:white}.hub-welcome{display:grid;grid-template-columns:1fr 230px;gap:30px;background:#e7eee0;border:1px solid #cad9c4;border-radius:24px;padding:30px;margin:20px 0 28px}.hub-welcome h2{font-size:32px;margin:8px 0}.hub-progress{display:flex;flex-direction:column;gap:10px;justify-content:center}.hub-progress strong{font-size:40px}.hub-progress small{color:#52665b}.hub-week{margin:32px 0}.hub-week h3{border-bottom:1px solid #d4ded5;padding-bottom:10px}.hub-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:15px}.hub-lesson-card{background:white;border:1px solid #d3ddd3!important;border-radius:18px;padding:22px!important;display:flex;flex-direction:column;align-items:flex-start;gap:12px;color:#173e37!important;text-align:left;text-decoration:none;min-height:175px;transition:box-shadow .15s}.hub-lesson-card:hover{box-shadow:0 4px 18px #173e3718;border-color:#6b9980!important}.hub-lesson-card strong{font-size:21px;line-height:1.35}.hub-card-type{font-size:12px;letter-spacing:.07em;text-transform:uppercase}.hub-exam-card{border-left:5px solid #c58b4e!important;background:#fffaf0}.hub-lesson-top{display:flex;justify-content:space-between;gap:20px;align-items:end}.hub-lesson-top select{display:block;max-width:100%;font:inherit;padding:12px;border:1px solid #bdcec0;border-radius:10px}.hub-lesson-title{margin:22px 0}.hub-lesson-title h2{font-size:34px;line-height:1.25;margin:7px 0}.hub-stages{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:25px 0}.hub-stages button{background:#edf1e8;color:#284d40;border:1px solid #d2decc;border-radius:14px;padding:15px 10px}.hub-stages span{display:inline-flex;width:26px;height:26px;justify-content:center;align-items:center;border:1px solid currentColor;border-radius:50%;margin-right:8px}.hub-stages button[aria-current]{background:#173e37;color:white}.hub-task-card{padding:28px;border:1px solid #cedbce;border-radius:18px;background:white;margin:20px 0}.hub-task-card ol{padding-left:26px}.hub-task-card li{margin:12px 0;line-height:1.6}.hub-deliver{padding:16px;background:#edf3e4;border-radius:12px;margin:20px 0}.hub-step-footer{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:20px 0;border-top:1px solid #cfdace}.hub-practice-nav{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}.hub-teacherlink{padding:12px;background:#f1e9d9;border-radius:10px}.hub-group{display:block;padding:15px;background:#fff;border-radius:12px}.hub-study-question{border-top:1px solid #dde5d7;margin:25px 0;padding-top:20px}#hub-help-dialog{max-width:650px;width:90%;max-height:85vh;border:1px solid #cad6c3;border-radius:20px;padding:25px}#hub-help-dialog p{line-height:1.7}#hub-help-dialog select{max-width:100%;padding:10px}#hub-stage-content:focus{outline:none}@media(max-width:700px){.hub-masthead,.hub-lesson-top{display:block}.hub-tools{margin-top:15px}.hub-welcome{grid-template-columns:1fr;padding:22px}.hub-stages{gap:5px}.hub-stages button{font-size:13px;padding:12px 5px}.hub-stages span{display:flex;margin:0 auto 5px}.hub-nav button{padding:10px;font-size:14px}.hub-lesson-title h2{font-size:28px}.hub-step-footer span{display:none}}

.exam-checklist{margin:18px 0;padding:22px!important}.exam-checklist summary{font-size:20px;font-weight:700;cursor:pointer}.checklist-items{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:10px}.checklist-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;border:1px solid #d9e2d6;border-radius:12px;padding:14px 16px;background:#fcfdf9}.checklist-row label{display:flex!important;align-items:flex-start;gap:14px;margin:0!important;min-width:0;line-height:1.5}.checklist-row input{width:21px;height:21px;flex:0 0 21px;margin:2px 0 0;accent-color:#176c5d}.checklist-row span{white-space:normal;overflow-wrap:anywhere}.checklist-row button{white-space:nowrap;margin:0;min-width:100px}.checklist-progress{font-size:15px;color:#536760}.hub-date-badge,.hub-date-lock{background:#fff1d9;border:1px solid #d9bd7d;border-radius:12px;padding:12px 16px}@media(max-width:500px){.checklist-row{grid-template-columns:1fr;gap:10px}.checklist-row button{justify-self:start;margin-left:35px}.exam-checklist{padding:16px!important}}

.solo-steps{padding-left:1.7em;counter-reset:step}.solo-steps li{padding:12px 10px;margin:8px 0;background:#f2f6ec;border-radius:10px;line-height:1.65}.solo-steps li::marker{font-weight:800;color:#176c5d}.solo-delivery,.solo-check{background:#eaf3e5;border-left:5px solid #176c5d;padding:15px 18px;border-radius:8px}.solo-fact{padding:12px 0;border-bottom:1px solid #e3e8dd}.solo-fact h4{font-size:18px;margin:8px 0}.solo-fact p{margin-top:6px}.solo-more{margin:20px 0}.solo-check p{font-size:15px;margin:6px 0}.solo-method .solo-steps li{background:#f7f2e7}

/* Calm pupil layout: one main action, weeks and secondary tools on demand. */
.hub-shell{max-width:920px;padding-top:4px}.hub-masthead{margin:0 0 12px}.hub-masthead h1{font-size:28px;margin:2px 0}.hub-masthead .eyebrow{margin:0;font-size:13px}.hub-nav{align-items:start;margin-bottom:20px;gap:8px}.hub-nav button{padding:10px 16px}.hub-more{position:relative;margin-left:auto}.hub-more>summary{cursor:pointer;padding:10px 16px;border:1px solid #ced9d3;border-radius:10px;list-style:none}.hub-more>summary::after{content:' ▾'}.hub-more>div{position:absolute;right:0;top:48px;z-index:10;width:240px;background:white;border:1px solid #ced9d3;border-radius:12px;box-shadow:0 8px 25px #163e3818;padding:8px;display:grid}.hub-more button{text-align:left}.hub-welcome{display:block;background:#f3f6f0;border-radius:16px;padding:24px;margin:18px 0 28px}.hub-welcome h2{font-size:28px}.hub-small-title{font-size:21px}.hub-week{margin:12px 0;border:1px solid #d7dfd9;border-radius:12px;background:white}.hub-week>summary,.hub-secondary>summary{cursor:pointer;font-size:18px;font-weight:650;padding:18px;line-height:1.5}.hub-week .hub-cards{padding:0 16px 16px;display:flex;flex-direction:column;gap:8px}.hub-lesson-card{min-height:0;padding:16px!important;border-radius:10px;gap:5px}.hub-lesson-card strong{font-size:18px}.hub-lesson-card span,.hub-lesson-card small{font-size:14px}.hub-secondary{margin:26px 0;color:#4b6159}.hub-secondary>p{padding:0 18px}.hub-lesson-top{display:block;margin:0}.hub-lesson-top summary{cursor:pointer;font-size:15px;color:#405d52}.hub-lesson-top label{display:block;margin-top:10px}.hub-lesson-title{margin:16px 0}.hub-lesson-title h2{font-size:28px}.hub-stages{gap:0;margin:20px 0;border-bottom:1px solid #d7dfd9}.hub-stages button{border:0;border-bottom:3px solid transparent;border-radius:0;background:transparent;padding:12px 5px;color:#496256}.hub-stages button[aria-current]{background:#f0f5ed;color:#163e38;border-bottom-color:#163e38}.hub-stages span{border:0;width:auto;height:auto;margin-right:5px}.hub-task-card,.panel{box-shadow:none}.hub-task-card{padding:22px;border-radius:12px}.solo-steps li{background:transparent;padding:5px 0}.hub-one-question{border:1px solid #d6dfd7;border-radius:10px;margin:12px 0;background:white}.hub-one-question>summary{cursor:pointer;padding:18px;font-weight:650;font-size:18px;line-height:1.6}.hub-one-question[open]>summary{border-bottom:1px solid #e2e8e1;background:#f7f9f4}.hub-question-body{padding:0 18px 18px}.hub-question-body .question{border:0;padding:0}.hub-date-lock{background:#f5f6f1;border-color:#d5ded1}.hub-goal{line-height:1.7}summary:focus-visible{outline:3px solid #176c5d;outline-offset:3px}@media(max-width:600px){.hub-shell{padding-top:0}.hub-masthead h1{font-size:24px}.hub-welcome{padding:20px}.hub-welcome h2{font-size:24px}.hub-stages button{font-size:13px}.hub-stages span{display:block;margin:0 0 4px}.hub-one-question>summary{font-size:17px;padding:14px}.hub-question-body{padding:0 14px 14px}.hub-step-footer{gap:8px}.hub-step-footer button{padding:12px}.hub-more>div{width:220px}}

.hub-question-body .prompt>label{display:block;position:static;width:auto;height:auto;margin:16px 0 10px;overflow:visible;clip:auto;white-space:normal;font-weight:650;line-height:1.6}.hub-study-question{padding-top:0}.hub-study-question .prompt{margin-top:12px}.hub-nav details[open] summary{background:#eef3ea}@media print{.hub-one-question{break-inside:avoid}.hub-question-body .prompt>label{position:static;width:auto;height:auto;clip:auto;white-space:normal}}

.hub-context-button{font-size:15px;background:#f1f5ee;color:#163e38;border:1px solid #cedccc;padding:9px 13px;margin:12px 0}.hub-exit-callout{border:1px solid #c8d7c7;background:#f3f7ef;border-radius:12px;padding:18px;margin:22px 0}.hub-exit-callout h3{margin-top:0}#hub-context-dialog{width:min(720px,92vw);max-height:85dvh;overflow-y:auto;border:1px solid #c9d8c9;border-radius:16px;padding:24px;color:#173e37;background:#fff;line-height:1.75}#hub-context-dialog::backdrop{background:#122d2966}.hub-popup-head{position:sticky;top:-24px;display:flex;align-items:start;justify-content:space-between;gap:16px;background:white;padding:12px 0;border-bottom:1px solid #dce5d8;z-index:1}.hub-popup-head h2{font-size:23px;margin:0}.hub-popup-head button{white-space:nowrap}#hub-context-dialog .unit-diagram{max-width:480px;margin:15px auto}#hub-context-dialog pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:12px;background:#f5f7f1}#hub-context-dialog summary{cursor:pointer;padding:12px 0}#hub-context-dialog li{margin:10px 0}@media(max-width:500px){#hub-context-dialog{padding:16px}.hub-popup-head{top:-16px}.hub-popup-head h2{font-size:20px}}

.hub-context-image{display:block;width:100%;height:auto;margin:15px auto;border-radius:10px}

.hub-example{background:#f6f7f2;border:1px solid #d6dfd0;border-radius:12px;padding:18px;margin:18px 0}.hub-example h3{font-size:19px;margin:6px 0}.hub-example li{margin:8px 0;line-height:1.65}.hub-example .eyebrow{font-size:12px}.hub-example .hub-context-button{margin-bottom:0}

/* Calm, accessible response steps */
.hub-response-step{border-left:4px solid #759b88;padding:8px 16px;margin:18px 0}.hub-language-support{margin:12px 0}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #216ab0;outline-offset:4px}dialog{max-width:min(760px,92vw);max-height:85dvh;overflow:auto}pre{white-space:pre-wrap;overflow-wrap:anywhere}@media(max-width:500px){.hub-stages{display:grid;grid-template-columns:1fr 1fr}.hub-shell{padding:12px}.hub-response-step{padding:8px}}