@import url("./result-shell.css");
:root{
  --navy:#17365f;
  --ink:#15355b;
  --muted:#667b95;
  --blue:#377ff2;
  --purple:#7c55e8;
  --green:#22a66d;
  --red:#e5525f;
  --orange:#f49a35;
  --line:#dce5f0;
  --shadow:0 18px 50px rgba(27,60,105,.10);
}

*{box-sizing:border-box}
html,body{margin:0;max-width:100%;overflow-x:clip;background:#f6f8fc;color:var(--ink);font-family:Inter,ui-rounded,"Segoe UI",Arial,sans-serif}
button,input{font:inherit}
button{-webkit-tap-highlight-color:transparent}

.topbar{
  height:64px;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid #edf1f6;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 14px;
  position:sticky;
  top:0;
  z-index:80;
  backdrop-filter:blur(14px);
}

body.embedded-mode .topbar{display:none}
body.embedded-mode .app-shell{padding-top:18px}
.brand{border:0;background:none;display:flex;align-items:center;gap:9px;color:var(--navy);font-weight:900;cursor:pointer;padding:5px 0}
.brand img{width:66px;display:block}
.brand span{display:none}
.lang-toggle{border:1px solid var(--line);border-radius:999px;background:#fff;padding:8px 12px;display:flex;gap:7px;color:var(--muted);cursor:pointer;font-size:13px}
.lang-toggle strong{color:var(--blue)}

.app-shell{max-width:1180px;margin:0 auto;padding:16px 12px 108px}
.lesson-active .app-shell{max-width:1320px;padding-top:12px}
.eyebrow{text-transform:uppercase;letter-spacing:.09em;font-weight:950;color:var(--purple);font-size:11px;margin-bottom:6px}

.hero{background:linear-gradient(145deg,#fff 18%,#eee8ff 100%);border:1px solid #e5dcfc;border-radius:26px;padding:25px 20px;box-shadow:var(--shadow);min-height:220px;position:relative;overflow:hidden}
.hero h1{font-size:clamp(31px,8vw,50px);line-height:1.04;margin:0 0 12px;max-width:720px}
.hero p{font-size:15px;line-height:1.55;color:var(--muted);margin:0;max-width:680px}
.hero img{display:none}
.operation-section h2{font-size:23px;margin:28px 4px 8px}
.year-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:11px;margin-top:15px}
.year-card{min-height:135px;border:1px solid var(--line);border-radius:20px;background:#fff;padding:16px;text-align:left;display:grid;align-content:start;gap:7px;box-shadow:0 8px 22px rgba(18,59,104,.05)}
.year-card.active{cursor:pointer;border-color:#cabdf7}
.year-card.active:hover{transform:translateY(-2px);outline:3px solid rgba(124,85,232,.12)}
.year-card.disabled{opacity:.5}
.year-badge{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:#f1ebff;color:var(--purple);font-size:26px;font-weight:950}
.year-card strong{font-size:20px}
.year-card small{color:var(--muted);line-height:1.4}

.setup-card,.step-card,.summary-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:18px;box-shadow:var(--shadow);max-width:900px;margin:0 auto}
.setup-toolbar{margin-bottom:15px}
.setup-head{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.setup-symbol{width:58px;height:58px;border-radius:17px;background:#f1ebff;color:var(--purple);display:grid;place-items:center;font-size:31px;font-weight:950}
.setup-head h1{margin:0;font-size:30px}
.setup-head p{margin:5px 0 0;color:var(--muted)}
.mode-grid{display:grid;gap:12px}
.mode-card{border:2px solid var(--line);background:#fff;border-radius:18px;padding:17px;text-align:left;cursor:pointer}
.mode-card.active{border-color:var(--purple);background:#f8f5ff;box-shadow:0 0 0 3px rgba(124,85,232,.08)}
.mode-card strong{display:block;font-size:20px;margin-bottom:5px}
.mode-card small{color:var(--muted);line-height:1.45}
.start-button,.action-button{border:0;border-radius:15px;background:linear-gradient(135deg,var(--purple),var(--blue));color:#fff;padding:14px 18px;font-weight:950;cursor:pointer;box-shadow:0 10px 24px rgba(81,102,231,.2)}
.start-button{width:100%;margin-top:20px}

.menu-button{
  display:inline-flex;
  align-items:center;
  gap:7px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--navy);
  padding:9px 11px;
  font-weight:900;
  cursor:pointer;
  box-shadow:0 4px 12px rgba(18,59,104,.05);
}
.menu-button svg{width:19px;height:19px;flex:0 0 auto}

/* Exact frozen Ajar Asas lesson-toolbar geometry and behaviour. */
.workspace{position:relative;display:grid;gap:12px;min-width:0}
.lesson-toolbar{
  position:sticky;
  top:72px;
  z-index:75;
  display:grid;
  grid-template-columns:auto auto minmax(0,1fr) auto;
  align-items:center;
  gap:9px;
  padding:9px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 10px 30px rgba(18,59,104,.13);
}
.lesson-toolbar .menu-button{height:46px;box-shadow:none}
.toolbar-button{
  height:46px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#eef3f9;
  color:var(--navy);
  padding:0 14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:7px;
  font-weight:950;
  cursor:pointer;
}
.toolbar-next{background:linear-gradient(135deg,var(--purple),var(--blue));color:#fff;border-color:transparent;min-width:132px}
.toolbar-button:disabled{opacity:.38;cursor:not-allowed}
.toolbar-next.is-waiting{visibility:hidden;pointer-events:none}
.toolbar-center{min-width:0;text-align:center;display:grid;gap:1px}
.toolbar-operation{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--purple);font-weight:950;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toolbar-arrow{display:grid;place-items:center;width:22px;height:22px;line-height:1;font-size:22px;transform:translateY(-.5px)}
.lesson-toolbar .menu-button,.lesson-toolbar .toolbar-button{display:inline-flex;align-items:center;justify-content:center}
.lesson-toolbar .menu-button svg{display:block;width:21px;height:21px;margin:0;transform:translateY(-1px);overflow:visible}

.step-card{max-width:none;padding:16px}
.phase-tracker{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin:0 0 10px}
.phase-pill{border-radius:12px;background:#edf1f7;color:#8290a1;padding:7px 4px;text-align:center;display:grid;gap:1px;min-height:51px;align-content:center}
.phase-pill b{font-size:17px;line-height:1}
.phase-pill small{font-size:9px}
.phase-pill.done{background:#e9f8f1;color:var(--green)}
.phase-pill.current{background:linear-gradient(135deg,#f1ebff,#eaf3ff);color:var(--purple);box-shadow:inset 0 0 0 2px #bfaef5}

.question-card{border:1px solid #dbe4ef;background:#fbfdff;border-radius:20px;padding:14px;margin-bottom:10px}
.question-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:11px;font-weight:850;margin-bottom:8px}
.question-source-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,540px);gap:18px;align-items:start}
.story-text{margin:0;font-size:clamp(18px,2.25vw,27px);line-height:1.42;font-weight:850;color:var(--navy)}
.story-hotspot,.table-cell{font:inherit;color:inherit}
button.story-hotspot,button.table-cell{border:0;background:transparent;cursor:pointer}
button.story-hotspot{display:inline;padding:1px 3px;margin:0 -1px;border-radius:7px}
.source-table{width:100%;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.table-row{display:grid;grid-template-columns:1fr 1fr}
.table-row>*{padding:8px 10px;border-bottom:1px solid var(--line)}
.table-row>*+*{border-left:1px solid var(--line)}
.table-row:last-child>*{border-bottom:0}
.table-row.head{background:#f1ebff;color:var(--purple)}
.table-cell{width:100%;text-align:left;position:relative}

.annotation-interactive{background:#fff9e7!important;box-shadow:inset 0 0 0 2px #efd47f}
.annotation-interactive:hover,.annotation-interactive:focus-visible{outline:3px solid rgba(124,85,232,.18);background:#f8f5ff!important}
.information-underlined{position:relative;background:#fff5bf!important;color:#6f4f00!important;text-decoration-line:underline;text-decoration-color:#e5525f;text-decoration-thickness:4px;text-underline-offset:5px;font-weight:950}
.annotation-correct{background:#eaf8f1!important;color:var(--green)!important;box-shadow:inset 0 0 0 2px #72d1a6!important}
.annotation-wrong{background:#fff0f1!important;color:var(--red)!important;box-shadow:inset 0 0 0 3px var(--red)!important;animation:shake .24s linear 2!important}

.question-sentence{width:100%;margin:12px 0 0;padding:11px 14px;border:3px solid transparent;border-radius:999px;background:#fff;color:var(--navy);font-size:clamp(19px,2.3vw,27px);line-height:1.3;font-weight:950;text-align:left}
button.question-sentence{cursor:pointer}
.question-interactive{border-style:dashed;border-color:#d7c8ff;background:#f8f5ff}
.question-interactive:hover,.question-interactive:focus-visible{outline:4px solid rgba(124,85,232,.16)}
.question-circled{border-color:var(--purple);background:#f4f0ff;box-shadow:0 0 0 4px rgba(124,85,232,.09)}

.lesson-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(285px,.55fr);gap:14px;align-items:start}
.math-board{border:1px solid #dbe4ef;background:linear-gradient(180deg,#fbfdff,#f4f8fd);border-radius:19px;padding:12px}
.kbat-stage{border:1px solid #efd47f;border-radius:17px;padding:13px;background:#fff9e7;box-shadow:0 7px 18px rgba(211,155,30,.08);animation:reveal .22s ease}
.kbat-stage h3{margin:0 0 7px;color:var(--purple);font-size:16px}
.kbat-stage p{margin:0;line-height:1.45}
.stage-prompt{margin-bottom:9px!important;color:var(--muted);font-weight:850}
.equation{font-family:"Cascadia Mono","Courier New",monospace;font-size:clamp(21px,3.6vw,34px);font-weight:950;color:var(--navy);padding:10px 11px;border-radius:13px;background:#fff;overflow-x:auto;white-space:nowrap}
.reverse-label{color:var(--muted);font-weight:900;margin-bottom:7px!important}
.reverse-equation{border:2px solid #b9dfcd;background:#eefaf4;color:#176a49}
.answer-banner{margin-top:10px;border-radius:14px;background:#eaf8f1;color:#166945;padding:11px;font-size:18px}

.explain-panel{position:sticky;top:154px}
.teacher-note{background:#f4f0ff;border:1px solid #ddd2fb;border-radius:16px;padding:11px;display:flex;gap:9px;align-items:flex-start}
.teacher-note img{width:40px;height:40px;object-fit:contain}
.teacher-note strong{display:block;color:var(--purple);margin-bottom:4px}
.teacher-note p{margin:0;line-height:1.42}
.feedback{margin-top:7px;font-weight:900}
.feedback.good{color:var(--green)}
.feedback.bad{color:var(--red)}

.choice-grid{display:grid;gap:8px}
.choice{border:2px solid var(--line);border-radius:13px;background:#fff;padding:10px;text-align:left;font-weight:800;cursor:pointer;color:var(--navy)}
.choice:hover{border-color:#bbaaf4}
.selected-choice{border-color:var(--purple)!important;background:#f1ebff!important;color:var(--purple)!important}
.choice.wrong,.input-shell.wrong input{background:#fff0f1!important;border-color:var(--red)!important;color:var(--red)!important;animation:shake .24s linear 2}
.choice.correct,.input-shell.correct input{background:#eaf8f1!important;border-color:#72d1a6!important;color:var(--green)!important}
.celebrate{animation:pop .55s ease}
.input-equation{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-family:"Cascadia Mono","Courier New",monospace;font-size:clamp(19px,3vw,29px);font-weight:950}
.input-shell{position:relative}
.input-shell input{width:118px;border:2px solid #e7bd4a;background:#fff7d8;border-radius:12px;padding:8px;text-align:center;font-size:inherit;font-weight:950;color:var(--navy);outline:none}
.input-shell input:focus{border-color:var(--purple);box-shadow:0 0 0 4px rgba(124,85,232,.13)}
.input-shell i{display:none;position:absolute;left:50%;top:-18px;transform:translateX(-50%);color:#f1aa21;font-style:normal;font-size:12px;white-space:nowrap}
.input-shell.celebrate i{display:block;animation:sparkle .6s ease-out}
.action-button{margin-top:11px}

.summary-card{text-align:center;max-width:680px}
.summary-card>img{width:110px}
.summary-card h1{font-size:32px}
.summary-answer{display:grid;gap:8px;background:#eaf8f1;color:var(--green);border-radius:18px;padding:18px;margin:18px 0}
.summary-answer span{font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:950}
.summary-answer strong{font-size:42px}
.summary-menu{margin-top:10px}

@keyframes reveal{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
@keyframes pop{0%{transform:scale(.96)}55%{transform:scale(1.04)}100%{transform:scale(1)}}
@keyframes sparkle{from{opacity:1;transform:translate(-50%,4px)}to{opacity:0;transform:translate(-50%,-12px)}}

@media(min-width:700px){
  .topbar{height:72px;padding:0 max(20px,calc((100vw - 1180px)/2))}
  .brand img{width:75px}
  .brand span{display:block;border-left:1px solid var(--line);padding-left:9px}
  .app-shell{padding:28px 20px 120px}
  .lesson-active .app-shell{padding-top:12px}
  .hero{display:grid;grid-template-columns:1fr 190px;padding:32px;min-height:250px}
  .hero img{display:block;width:180px;justify-self:end;align-self:end;margin-bottom:-38px}
  .year-grid{grid-template-columns:repeat(3,1fr);gap:15px}
  .mode-grid{grid-template-columns:1fr 1fr}
  .setup-card{padding:26px}
}

@media(max-width:980px){
  .question-source-grid{grid-template-columns:1fr}
  .source-table{max-width:470px}
  .lesson-layout{grid-template-columns:1fr}
  .explain-panel{position:static}
}

@media(max-width:699px){
  .topbar{height:58px}
  .lesson-active .topbar{box-shadow:0 1px 0 #edf1f6}
  body.lesson-active .app-shell{padding:7px 7px calc(94px + env(safe-area-inset-bottom))}
  .workspace{gap:8px}

  .lesson-toolbar{
    position:fixed;
    top:auto;
    left:max(7px,env(safe-area-inset-left));
    right:max(7px,env(safe-area-inset-right));
    bottom:calc(7px + env(safe-area-inset-bottom));
    z-index:220;
    grid-template-columns:44px 44px minmax(0,1fr) 44px;
    gap:6px;
    padding:7px;
    border-radius:20px;
    border:1px solid rgba(210,221,236,.94);
    background:rgba(255,255,255,.965);
    box-shadow:0 -8px 28px rgba(18,59,104,.16),0 7px 20px rgba(18,59,104,.09);
    backdrop-filter:blur(18px);
  }
  .lesson-toolbar .menu-button,.lesson-toolbar .toolbar-button{width:44px;height:44px;min-width:44px;padding:0;border-radius:13px}
  .lesson-toolbar .toolbar-next{width:44px;min-width:44px}
  .lesson-toolbar .toolbar-center{min-width:0;display:grid;place-items:center;padding:0 3px}
  .lesson-toolbar .toolbar-operation{display:block;max-width:100%;font-size:clamp(10.5px,3.15vw,12px);letter-spacing:.025em;line-height:1.1;text-transform:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .lesson-toolbar .menu-button span,.lesson-toolbar .toolbar-label{display:none!important}
  .toolbar-arrow{width:24px;height:24px;font-size:24px}

  .step-card{padding:8px;border-radius:19px}
  .phase-tracker{gap:4px;margin-bottom:8px}
  .phase-pill{padding:6px 2px;min-height:38px;border-radius:10px}
  .phase-pill small{display:none}
  .phase-pill b{font-size:16px}
  .question-card{padding:10px;border-radius:16px;margin-bottom:8px}
  .question-meta{font-size:10px;margin-bottom:7px}
  .question-source-grid{gap:10px}
  .story-text{font-size:19px;line-height:1.42}
  .source-table{max-width:none}
  .table-row>*{padding:7px 9px}
  .question-sentence{font-size:19px;padding:10px 11px;border-radius:24px;margin-top:10px}
  .information-underlined{text-decoration-thickness:3px;text-underline-offset:4px}
  button.story-hotspot{padding-inline:2px}
  .lesson-layout{gap:8px}
  .math-board{padding:8px;border-radius:16px}
  .kbat-stage{padding:11px;border-radius:14px}
  .kbat-stage h3{font-size:15px}
  .equation{font-size:clamp(19px,6vw,27px);padding:9px}
  .teacher-note{padding:9px}
  .teacher-note img{width:34px;height:34px}
  .teacher-note p{font-size:13px}
  .input-equation{font-size:clamp(18px,5.5vw,25px)}
  .input-shell input{width:102px}
}

@media(max-width:380px){
  .year-grid{grid-template-columns:1fr}
  .lesson-toolbar{grid-template-columns:42px 42px minmax(0,1fr) 42px;gap:4px;padding:6px}
  .lesson-toolbar .menu-button,.lesson-toolbar .toolbar-button,.lesson-toolbar .toolbar-next{width:42px;height:42px;min-width:42px}
  .lesson-toolbar .toolbar-operation{font-size:10px}
  .story-text,.question-sentence{font-size:18px}
}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* CP1.4 shared host calculation runtime */
.calculation-stage{display:grid;gap:10px;background:#fffdf5}
.calculation-stage-title{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap}
.calculation-stage-title h3{margin:0 0 2px}
.calculation-stage-title>div>span{font-size:11px;font-weight:900;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.calculation-goal{font-family:"Cascadia Mono","Courier New",monospace;font-size:clamp(17px,2.3vw,25px);font-weight:950;color:var(--navy);background:#fff;border:1px solid #eadb9e;border-radius:12px;padding:8px 11px;white-space:nowrap;overflow-x:auto;max-width:100%}
.calculation-goal.is-complete{background:#eaf8f1;border-color:#99d7ba;color:#176a49}
.engine-runtime{border:1px solid #d7e3f0;background:#fff;border-radius:16px;padding:11px;display:grid;gap:8px;min-width:0}
.engine-step-head{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font-size:11px;font-weight:900}
.engine-source-badge{display:inline-flex;align-items:center;border-radius:999px;background:#eee9ff;color:var(--purple);padding:5px 8px}
.engine-runtime h4{margin:0;color:var(--navy);font-size:17px}
.engine-instruction,.engine-prompt{margin:0!important;line-height:1.4}
.engine-prompt{color:var(--muted);font-weight:800;font-size:13px}
.engine-column-board{--engine-cell:47px;display:grid;gap:2px;justify-content:center;margin:2px auto;padding:10px 12px;border-radius:14px;background:#f6f9fd;max-width:100%;overflow-x:auto}
.engine-math-row{display:grid;grid-template-columns:28px repeat(var(--engine-cols),var(--engine-cell));align-items:end;justify-content:center;min-width:max-content}
.engine-operator{display:grid;place-items:center;font-size:25px;font-weight:950;min-height:46px}
.engine-digit-cell{position:relative;display:grid;place-items:center;min-height:46px;font-family:"Cascadia Mono","Courier New",monospace;font-size:27px;font-weight:950;color:var(--navy);border-radius:9px}
.engine-digit-cell.is-active{background:#fff4c8;box-shadow:inset 0 0 0 2px #e7bd4a}
.engine-digit-cell.decimal-start::before{content:".";position:absolute;left:-6px;bottom:5px;font-size:28px;font-weight:950;color:var(--navy)}
.engine-carry-row .engine-digit-cell{min-height:28px;font-size:16px;color:var(--purple)}
.engine-rule{height:3px;background:var(--navy);border-radius:99px;margin-left:28px}
.engine-result-row .engine-digit-cell{color:#176a49}
.engine-inline-input{width:38px;height:38px;border:2px solid var(--purple);border-radius:8px;background:#fff;text-align:center;font:inherit;color:var(--navy);padding:0;outline:none}
.engine-inline-input:focus{box-shadow:0 0 0 4px rgba(124,85,232,.13)}
.engine-inline-input.is-wrong,.engine-target-field.is-wrong input{border-color:var(--red)!important;background:#fff0f1!important;color:var(--red)!important;animation:shake .24s linear 2}
.engine-old-digit{position:absolute;top:-3px;font-size:13px;text-decoration:line-through;color:var(--red);font-weight:900}
.engine-new-digit{display:grid;place-items:center;padding-top:8px;font-size:23px}
.engine-chain{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;padding:12px 8px;border-radius:14px;background:#f6f9fd;min-height:82px}
.engine-chip,.engine-result-chip{display:inline-grid;place-items:center;min-height:43px;padding:7px 12px;border-radius:11px;background:#fff;border:1px solid #d8e2ee;font-family:"Cascadia Mono","Courier New",monospace;font-size:22px;font-weight:950;color:var(--navy)}
.engine-result-chip{background:#eaf8f1;border-color:#9bd9bd;color:#176a49}
.engine-chain-operator,.engine-chain-arrow{font-size:25px;color:var(--purple)}
.engine-chain-text{font-weight:900;color:var(--muted)}
.engine-fraction{position:relative;display:inline-grid;grid-template-rows:auto 2px auto;min-width:58px;text-align:center;vertical-align:middle;font-family:"Cascadia Mono","Courier New",monospace;font-size:21px;font-style:normal}
.engine-fraction b{padding:2px 7px}
.engine-fraction i{display:block;background:currentColor;height:2px}
.engine-fraction em{position:absolute;right:-16px;top:50%;transform:translateY(-50%);font-style:normal;font-weight:950}
.engine-transform-grid{display:grid;grid-template-columns:minmax(90px,1fr) auto minmax(90px,1fr);gap:12px;align-items:center;text-align:center;padding:12px;border-radius:14px;background:#f6f9fd}
.engine-transform-grid>div{display:grid;gap:5px;justify-items:center}
.engine-transform-grid small{text-transform:uppercase;letter-spacing:.06em;font-size:10px;font-weight:900;color:var(--muted)}
.engine-transform-grid>b{font-size:26px;color:var(--purple)}
.engine-divisor-label{font-weight:950;margin-left:8px}
.engine-target-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px}
.engine-target-field{display:grid;gap:5px;border:1px solid #dbe4ef;border-radius:12px;padding:8px;background:#fbfdff}
.engine-target-field>span{font-size:11px;font-weight:900;color:var(--muted)}
.engine-target-field>div{display:flex;align-items:center;gap:6px}
.engine-target-field input{width:100%;min-width:0;border:2px solid #e7bd4a;background:#fff7d8;border-radius:9px;padding:8px;text-align:center;font-size:19px;font-weight:950;color:var(--navy);outline:none}
.engine-target-field input:focus{border-color:var(--purple);box-shadow:0 0 0 4px rgba(124,85,232,.13)}
.engine-loading,.engine-error{min-height:150px;align-content:center;justify-items:center;text-align:center}
.engine-loader{width:34px;height:34px;border:4px solid #e4dcfb;border-top-color:var(--purple);border-radius:50%;animation:spin .7s linear infinite}
.engine-error{background:#fff4f5;border-color:#efb3ba;color:var(--red)}
.engine-summary{display:grid;gap:5px;border:1px solid #dbe4ef;border-radius:14px;padding:11px;background:#f8fbff;margin:12px 0;color:var(--muted)}
.engine-summary strong{color:var(--navy)}
@keyframes spin{to{transform:rotate(360deg)}}

@media(max-width:699px){
  .calculation-stage{gap:8px}
  .calculation-stage-title{display:grid;gap:7px}
  .calculation-goal{font-size:17px;width:100%}
  .engine-runtime{padding:9px;border-radius:13px}
  .engine-runtime h4{font-size:15px}
  .engine-column-board{--engine-cell:40px;padding:8px 7px}
  .engine-math-row{grid-template-columns:24px repeat(var(--engine-cols),var(--engine-cell))}
  .engine-digit-cell{min-height:41px;font-size:23px}
  .engine-operator{min-height:41px;font-size:22px}
  .engine-inline-input{width:34px;height:34px}
  .engine-chain{gap:6px;padding:9px 5px}
  .engine-chip,.engine-result-chip{font-size:18px;padding:6px 9px;min-height:38px}
  .engine-fraction{font-size:18px;min-width:48px}
  .engine-transform-grid{gap:7px;padding:9px}
}

/* CP1.4: distinct learner task + QiRa thinking strategy */
.stage-task-label{display:inline-flex;margin:0 0 6px;border-radius:999px;background:#fff1bd;color:#805d00;padding:4px 8px;font-size:10px;font-weight:950;text-transform:uppercase;letter-spacing:.055em}
.stage-model-answer{margin-top:10px;border:1px solid #d9e3ee;border-radius:13px;background:#fff;padding:10px;display:grid;gap:4px}
.stage-model-answer strong{font-size:11px;text-transform:uppercase;letter-spacing:.055em;color:var(--muted)}
.stage-model-answer p{color:var(--navy)}
.phase-pill small{line-height:1.15;text-wrap:balance}

/* CP1.4: corrected Peratus R2.9.1 + official Ajar Asas Bahagi embed */
.engine-explicit-transform .engine-fraction{min-width:96px}
.engine-division-bridge{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;padding:15px;border-radius:14px;background:#f6f9fd}
.engine-division-chip{display:inline-grid;place-items:center;border:1px solid #d8e2ee;border-radius:12px;background:#fff;padding:9px 14px;font-family:"Cascadia Mono","Courier New",monospace;font-size:23px;font-weight:950;color:var(--navy)}
.official-engine-shell{display:grid;gap:9px;min-width:0}
.official-engine-trustline{display:grid;gap:3px;border:1px solid #d8cdf8;border-radius:13px;background:#f5f1ff;padding:10px;color:var(--navy)}
.official-engine-trustline strong{color:var(--purple)}
.official-engine-trustline span{font-size:13px;line-height:1.4}
.official-asas-engine-frame{display:block;width:100%;height:720px;border:1px solid #d7e3f0;border-radius:15px;background:#fff}
.official-engine-result{display:flex;align-items:center;justify-content:center;gap:6px;border:1px solid #99d7ba;border-radius:14px;background:#eaf8f1;color:#176a49;padding:14px;font-family:"Cascadia Mono","Courier New",monospace;font-size:clamp(20px,3vw,28px);font-weight:900}
.official-engine-shell.has-error .official-engine-trustline{background:#fff2f3;border-color:#efb3ba;color:var(--red)}

@media(max-width:699px){
  .stage-model-answer{padding:9px}
  .engine-explicit-transform .engine-fraction{min-width:80px;font-size:16px}
  .engine-division-bridge{gap:10px;padding:11px 7px}
  .engine-division-chip{font-size:19px;padding:7px 10px}
  .official-asas-engine-frame{height:680px;border-radius:12px}
  .official-engine-trustline{padding:9px}
}

/* CP1.5: preserve original inline Saya Cuba interaction from Ajar 4P */
.engine-inline-board{min-height:104px}
.engine-input-fraction{align-items:center}
.engine-input-fraction b{display:grid;place-items:center;min-height:44px;padding:2px 5px}
.engine-board-input-shell{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-width:48px}
.engine-board-math-input{width:54px;height:44px;border:2px solid #e7bd4a;border-radius:10px;background:#fff7d8;text-align:center;font-family:"Cascadia Mono","Courier New",monospace;font-size:22px;font-weight:950;color:var(--navy);padding:0;outline:none}
.engine-board-math-input:focus{border-color:var(--purple);box-shadow:0 0 0 5px rgba(124,85,232,.14);background:#fff}
.engine-board-input-shell.is-wrong .engine-board-math-input,.engine-board-math-input.is-wrong{border-color:var(--red)!important;background:#fff0f1!important;color:var(--red)!important;animation:shake .24s linear 2}
.engine-board-suffix{font-size:21px;color:var(--navy)}

@media(max-width:699px){
  .engine-inline-board{min-height:88px}
  .engine-board-math-input{width:46px;height:39px;font-size:19px}
  .engine-board-input-shell{min-width:42px}
  .engine-input-fraction b{min-height:39px;padding:2px 3px}
}

/* CP1.6: one simple Quality proof for the final answer */
.quality-proof{display:grid;gap:12px;margin-top:16px}
.quality-proof-row{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border:1px solid #bce7d6;border-radius:18px;background:#effbf6;color:#123b31}
.quality-proof-row strong{display:block;font-size:1rem;color:#087d5a;margin-bottom:3px}
.quality-proof-row p{margin:0;line-height:1.45}
.quality-proof-check{display:grid;place-items:center;flex:0 0 32px;width:32px;height:32px;border-radius:50%;background:#11a978;color:white;font-weight:900;font-size:1.1rem}
.quality-context-check{background:#f7f4ff;border-color:#d9ccff;color:#33205f}
.quality-context-check strong{color:#7146e8}
@media(max-width:720px){.quality-proof-row{padding:12px}.quality-proof-check{flex-basis:28px;width:28px;height:28px}.quality-proof-row strong{font-size:.95rem}}

/* KBAT layered help: clue first, complete guided method second. */
.kbat-help-block{display:grid;gap:10px;margin-top:14px;padding-top:14px;border-top:1px solid #dbe5f1}
.kbat-help-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.kbat-help-button{min-height:48px;border:1px solid #d8e1ec;border-radius:14px;background:#fff;color:#123a6b;font:inherit;font-weight:900;padding:10px 14px;cursor:pointer}
.kbat-help-button.primary{border:0;color:#fff;background:linear-gradient(110deg,#7950ee,#347ff0)}
.kbat-help-message{border:1px solid #e4d8ff;border-radius:14px;background:#f7f3ff;padding:13px 15px;color:#123a6b;text-align:left}
.kbat-help-message strong{color:#7652f5}
.kbat-help-message p{margin:6px 0 0;line-height:1.5}
.kbat-help-message.guided{background:#eef8ff;border-color:#cfe4f8}
.kbat-help-message .action-button{margin-top:12px;width:100%}
@media(max-width:640px){.kbat-help-actions{grid-template-columns:1fr}.kbat-help-button{min-height:46px}}

/* Batch 1 multi-item and KBAT-native reasoning additions */
.item-picker{max-width:1380px;margin:18px auto}
.kbat-item-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:22px}
.kbat-item-card{border:1.5px solid #d9e4f4;background:#fff;border-radius:20px;padding:18px;text-align:left;display:flex;flex-direction:column;gap:8px;min-height:148px;color:#0d3563;box-shadow:0 8px 20px rgba(40,77,122,.06);cursor:pointer}
.kbat-item-card:hover,.kbat-item-card.active{border-color:#8b63f6;box-shadow:0 10px 24px rgba(111,79,235,.14);transform:translateY(-1px)}
.kbat-item-card span{font-size:.78rem;font-weight:900;color:#7b50ef;text-transform:uppercase;letter-spacing:.03em}
.kbat-item-card strong{font-size:1.08rem;line-height:1.25}
.kbat-item-card small{color:#607492;line-height:1.35}
.question-asset-wrap{display:flex;align-items:center;justify-content:center;min-width:0}
.question-asset{display:block;width:100%;max-width:100%;max-height:380px;object-fit:contain;border-radius:16px;background:#fff;cursor:zoom-in}
.question-mini-visual{border:1px solid #dbe5f2;border-radius:16px;background:#f7faff;padding:16px;display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap;color:#123b69}
.question-mini-visual span{background:#fff;border:1px solid #d7e3f1;border-radius:12px;padding:10px 14px;font-weight:800}
.question-mini-visual em{width:100%;text-align:center;color:#687b95;font-style:normal}
.pie-mini,.coordinate-mini{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.probability-mini{display:grid;grid-template-columns:1fr 1fr}.probability-mini strong{grid-column:1/-1;text-align:center}
.native-runtime{border-color:#d8cffb;background:#fff}
.native-equation,.native-time-flow,.native-coordinate-flow{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;padding:24px;border-radius:18px;background:#f5f8fd;font-size:clamp(1.35rem,3vw,2.15rem);font-weight:900;color:#103766}
.native-answer-chip{background:#e7f8ef;color:#0a8b5d;border:2px solid #7ad7b2;border-radius:14px;padding:9px 16px}
.native-inline-answer{display:inline-flex;align-items:center;gap:5px;background:#fff5d2;border:2px solid #efbd36;border-radius:14px;padding:5px 10px}
.native-inline-answer input,.native-time-flow input{width:120px;border:0;background:transparent;font:inherit;text-align:center;color:#103766;outline:0}
.native-working-list{display:grid;gap:8px;margin-top:14px}.native-working-list>div{display:grid;grid-template-columns:32px 1fr;gap:10px;align-items:center;background:#f7f9fc;border-radius:12px;padding:10px}.native-working-list span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#7956ef;color:#fff;font-weight:900}.native-working-list p{margin:0;font-weight:750;color:#244b78}
.native-multi-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:12px}
.native-field,.native-value-card{display:flex;flex-direction:column;gap:7px;border:1px solid #d7e3f1;border-radius:16px;padding:13px;background:#f8faff}.native-field>span:first-child,.native-value-card>span{font-weight:850;color:#566d8b}.native-value-card strong{font-size:1.5rem;color:#103766}
.native-input-wrap{display:flex;align-items:center;border:2px solid #e8b832;background:#fff5ce;border-radius:12px;padding:4px 10px}.native-input-wrap input{width:100%;min-width:0;border:0;background:transparent;font-size:1.35rem;font-weight:900;text-align:center;color:#103766;outline:0}.native-input-wrap b{white-space:nowrap}
.native-binary-table{overflow-x:auto;border:1px solid #d9e4f2;border-radius:16px;background:#fff}.native-binary-head,.native-binary-row{display:grid;grid-template-columns:minmax(115px,1.3fr) repeat(7,minmax(54px,1fr));align-items:center;min-width:560px}.native-binary-head>*{padding:10px 6px;text-align:center;background:#eee7ff;color:#6e4be6}.native-binary-row>strong{padding:12px;color:#173e6b}.native-tick{min-height:48px;border:1px solid #dbe4f0;background:#fff;font-size:1.3rem;font-weight:900;color:#13a875}.native-tick.selected{background:#e9faf2}.native-table-note{color:#667a96;font-weight:700}
.native-choice-grid{display:grid;gap:10px}.native-choice{border:1.5px solid #d8e3f1;background:#fff;border-radius:14px;padding:14px;text-align:left;font-weight:800;color:#173e6b}.native-choice.selected,.native-choice.correct{border-color:#29b37d;background:#e8faf2}
.native-coordinate-input{display:inline-flex;align-items:center;gap:4px}.native-coordinate-input .native-field{display:inline-flex;padding:3px;border:0;background:transparent}.native-coordinate-input .native-field>span:first-child{display:none}.native-coordinate-input input{width:72px}
.official-asas-engine-frame{width:100%;min-height:620px;border:0;border-radius:16px;background:#fff}
@media(max-width:980px){.kbat-item-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.question-source-grid{grid-template-columns:1fr}.source-visual-frame{width:min(100%,760px);justify-self:center}.question-asset{max-height:430px}}
@media(max-width:600px){.kbat-item-grid{grid-template-columns:1fr}.kbat-item-card{min-height:unset}.native-multi-grid{grid-template-columns:1fr}.native-equation,.native-time-flow,.native-coordinate-flow{padding:16px 10px;font-size:1.3rem}.question-asset{max-height:330px}.official-asas-engine-frame{min-height:690px}}


/* CP2.2: larger source visuals with a centred zoom viewer. */
.source-visual-frame{position:relative;min-width:0;border:1px solid #d9e4f2;border-radius:18px;background:#fff;padding:8px 10px 10px;box-shadow:0 7px 18px rgba(32,72,118,.07)}
.source-visual-toolbar{display:flex;justify-content:flex-end;align-items:center;min-height:38px;margin-bottom:4px}
.source-visual-content{min-width:0}
.source-visual-frame .source-table,.source-visual-frame .question-mini-visual{margin:0;max-width:none}
.source-visual-frame .source-table .table-row>*{padding:12px 14px;font-size:clamp(.96rem,1.28vw,1.08rem)}
.source-visual-frame .question-mini-visual{padding:20px;font-size:1.04rem}
.visual-expand-button{position:static;width:38px;height:38px;min-width:38px;min-height:38px;border:1px solid rgba(255,255,255,.92);border-radius:50%;background:rgba(19,55,102,.94);color:#fff;padding:0;display:inline-grid;place-items:center;font:inherit;cursor:pointer;box-shadow:0 6px 16px rgba(16,48,91,.2);backdrop-filter:blur(9px)}
.visual-expand-button:hover,.visual-expand-button:focus-visible{background:#6f4be6;outline:4px solid rgba(111,75,230,.18);transform:translateY(-1px)}
.visual-expand-button svg{width:19px;height:19px;display:block}
.question-asset:focus-visible{outline:4px solid rgba(111,75,230,.2);outline-offset:3px}
body.visual-modal-open{overflow:hidden}
.visual-modal[hidden]{display:none}
.visual-modal{position:fixed;inset:0;z-index:1200;display:grid;place-items:center;padding:max(12px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left))}
.visual-modal-backdrop{position:absolute;inset:0;background:rgba(8,25,48,.72);backdrop-filter:blur(8px)}
.visual-modal-dialog{position:relative;width:min(1120px,96vw);height:min(860px,92vh);display:grid;grid-template-rows:auto minmax(0,1fr) auto;border:1px solid rgba(255,255,255,.55);border-radius:24px;background:#fff;box-shadow:0 32px 90px rgba(4,21,45,.38);overflow:hidden}
.visual-modal-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 16px;border-bottom:1px solid #dce5f0;background:#fbfdff}
.visual-modal-header strong{display:block;color:#123b69;font-size:1.05rem}.visual-modal-header small{display:block;margin-top:2px;color:#667b95}
.visual-modal-close{width:44px;height:44px;border:0;border-radius:14px;background:#eef3f9;color:#123b69;font-size:2rem;line-height:1;cursor:pointer}
.visual-modal-close:hover,.visual-modal-close:focus-visible{background:#fff0f1;color:#b53040;outline:3px solid rgba(229,82,95,.16)}
.visual-modal-viewport{position:relative;display:grid;place-items:center;min-height:0;overflow:hidden;background:radial-gradient(circle at center,#fff 0,#f2f6fb 72%);touch-action:none;cursor:grab;user-select:none}
.visual-modal-viewport.is-dragging{cursor:grabbing}
.visual-modal-canvas{display:grid;place-items:center;transform-origin:center;will-change:transform;transition:transform .12s ease;pointer-events:none}
.visual-modal-canvas *{pointer-events:none!important;-webkit-user-drag:none;user-select:none}
.visual-modal-viewport.is-dragging .visual-modal-canvas{transition:none}
.visual-modal-canvas>.question-asset{width:auto;max-width:min(1040px,88vw);max-height:calc(92vh - 150px);border-radius:16px;box-shadow:0 12px 35px rgba(22,54,92,.13);cursor:grab}
.visual-modal-canvas>.source-table{width:min(820px,82vw);min-width:580px;font-size:clamp(1rem,2vw,1.25rem);box-shadow:0 12px 35px rgba(22,54,92,.12)}
.visual-modal-canvas>.source-table .table-row>*{padding:14px 18px}
.visual-modal-canvas>.question-mini-visual{width:min(820px,82vw);min-width:580px;padding:28px;font-size:1.2rem;box-shadow:0 12px 35px rgba(22,54,92,.12)}
.visual-modal-controls{display:flex;align-items:center;justify-content:center;gap:9px;padding:11px 14px;border-top:1px solid #dce5f0;background:#fff}
.visual-modal-controls button{min-width:44px;height:42px;border:1px solid #d7e2ee;border-radius:12px;background:#f4f7fb;color:#123b69;font:inherit;font-weight:950;cursor:pointer}
.visual-modal-controls button:hover,.visual-modal-controls button:focus-visible{border-color:#8060ea;background:#f1edff;outline:3px solid rgba(128,96,234,.14)}
.visual-modal-controls button:disabled{opacity:.38;cursor:not-allowed}
.visual-modal-controls output{min-width:64px;text-align:center;color:#123b69;font-weight:950}
.visual-modal-controls .visual-modal-reset{width:auto;padding:0 14px}
@media(max-width:699px){
  .source-visual-frame{padding:6px 7px 8px;border-radius:15px}
  .source-visual-toolbar{min-height:36px;margin-bottom:3px}
  .source-visual-frame .source-table .table-row>*{padding:10px 11px;font-size:.96rem}
  .source-visual-frame .question-mini-visual{padding:16px;font-size:1rem}
  .visual-expand-button{width:36px;height:36px;min-width:36px;min-height:36px}
  .visual-modal{padding:6px}
  .visual-modal-dialog{width:100%;height:min(94vh,900px);border-radius:20px}
  .visual-modal-header{padding:10px 11px}.visual-modal-header small{font-size:.74rem}.visual-modal-close{width:40px;height:40px}
  .visual-modal-canvas>.question-asset{max-width:92vw;max-height:calc(94vh - 145px)}
  .visual-modal-canvas>.source-table,.visual-modal-canvas>.question-mini-visual{width:720px;min-width:720px}
  .visual-modal-controls{padding:9px 8px}.visual-modal-controls .visual-modal-reset{padding:0 10px;font-size:.82rem}
}

/* CP2.1: fast direct answer with optional collapsible working. */
.direct-answer-panel{display:grid;gap:13px;border:1.5px solid #d8e4f1;border-radius:18px;background:#fff;padding:15px;box-shadow:0 8px 20px rgba(27,67,111,.06)}
.direct-answer-panel.needs-help{border-color:#e6c55b;background:#fffdf3}
.direct-answer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.direct-answer-head strong{display:block;color:#123b69;font-size:1.05rem}
.direct-answer-head p{margin:4px 0 0;color:#607492;line-height:1.4;font-size:.92rem}
.working-toggle{flex:0 0 auto;min-height:44px;border:0;border-radius:13px;background:linear-gradient(110deg,#7950ee,#347ff0);color:#fff;padding:10px 15px;font:inherit;font-weight:900;cursor:pointer;box-shadow:0 8px 18px rgba(92,81,223,.18)}
.working-toggle.attention{animation:helpPulse 1.2s ease-in-out infinite}
.direct-field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.direct-field{display:grid;gap:6px;color:#566d8b;font-weight:850}
.direct-field>div{display:flex;align-items:center;gap:7px;min-height:52px;border:2px solid #e8bd42;border-radius:13px;background:#fff7d8;padding:5px 11px}
.direct-field input{width:100%;min-width:0;border:0;background:transparent;color:#103766;font:inherit;font-size:1.32rem;font-weight:950;text-align:center;outline:0}
.direct-field>div:focus-within{border-color:#7950ee;box-shadow:0 0 0 4px rgba(121,80,238,.12);background:#fff}
.direct-field.is-wrong>div{border-color:#d85362;background:#fff0f1;animation:shake .24s linear 2}
.direct-single{max-width:390px}
.direct-coordinate{display:flex;align-items:end;justify-content:flex-start;gap:8px;font-size:1.5rem;color:#103766;font-weight:950}
.direct-coordinate .direct-field{width:105px}
.direct-coordinate .direct-field>span{text-align:center}
.direct-choice-grid{display:grid;gap:9px}
.direct-choice{border:1.5px solid #d8e3f1;border-radius:13px;background:#fff;color:#173e6b;padding:13px;text-align:left;font:inherit;font-weight:850;cursor:pointer}
.direct-choice.selected{border-color:#7950ee;background:#f2edff;color:#5536c4}
.direct-choice.wrong{border-color:#d85362;background:#fff0f1;color:#a52e3c;animation:shake .24s linear 2}
.direct-hint-button{justify-self:start;border:1px solid #d8e1ec;border-radius:12px;background:#fff;color:#123a6b;padding:9px 14px;font:inherit;font-weight:900;cursor:pointer}
.working-panel{display:grid;gap:11px;margin-top:2px;padding:14px;border:1px solid #d7e3f0;border-radius:18px;background:#f7faff;animation:reveal .2s ease}
.working-panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#123b69}
.working-panel-head span{color:#607492;font-size:.86rem;font-weight:750}
.direct-task-note{border:1px solid #d9ccff;border-radius:14px;background:#f7f4ff;padding:12px 14px;color:#33205f}
.direct-task-note p{margin:4px 0 0;line-height:1.4}
.kbat-help-actions.single{grid-template-columns:1fr}
@keyframes helpPulse{0%,100%{transform:scale(1);box-shadow:0 8px 18px rgba(92,81,223,.18)}50%{transform:scale(1.025);box-shadow:0 10px 25px rgba(92,81,223,.3)}}
@media(max-width:640px){
  .direct-answer-head{display:grid}
  .working-toggle{width:100%}
  .direct-field-grid{grid-template-columns:1fr}
  .direct-single{max-width:none}
  .direct-answer-panel{padding:12px}
  .working-panel{padding:10px}
}

/* CP2.4: real pie-chart visual, direct chart completion and one-sector-at-a-time working. */
.pie-question-layout{display:grid;grid-template-columns:minmax(220px,1fr) minmax(190px,.8fr);gap:18px;align-items:center;border:1px solid #dbe5f2;border-radius:16px;background:#f7faff;padding:18px;color:#123b69}
.pie-data-card{display:grid;gap:7px;background:#fff;border:1px solid #d7e3f1;border-radius:14px;padding:14px}
.pie-data-card>strong{font-size:1.05rem;color:#103766;margin-bottom:3px}
.pie-data-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #e5ecf4;padding-top:7px}
.pie-data-row span{font-weight:760}.pie-data-row strong{color:#103766}
.pie-question-chart-wrap{display:grid;place-items:center;gap:8px;text-align:center;color:#607492;font-weight:760}
.pie-question-chart{position:relative;width:min(190px,36vw);aspect-ratio:1;border:3px solid #123b69;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1px rgba(18,59,105,.08)}
.pie-question-chart:before{content:"";position:absolute;left:50%;top:0;width:2px;height:50%;background:#123b69;transform:translateX(-1px);transform-origin:bottom}
.pie-question-chart span{position:absolute;inset:50% auto auto 50%;width:10px;height:10px;border-radius:50%;background:#123b69;transform:translate(-50%,-50%)}
.visual-modal-canvas>.pie-question-layout{width:min(860px,82vw);min-width:660px;padding:28px;font-size:1.15rem;box-shadow:0 12px 35px rgba(22,54,92,.12)}

.direct-pie-layout{display:grid;grid-template-columns:minmax(180px,.72fr) minmax(280px,1.28fr);gap:18px;align-items:center}
.direct-pie-preview,.native-pie-progress{position:relative;width:min(230px,100%);aspect-ratio:1;border:3px solid #123b69;border-radius:50%;background:#fff;justify-self:center;box-shadow:inset 0 0 0 1px rgba(18,59,105,.08);transition:background .2s ease}
.direct-pie-preview:after,.native-pie-progress:after{content:"";position:absolute;inset:50% auto auto 50%;width:44%;height:44%;border-radius:50%;background:#fff;border:1px solid #d7e3f1;transform:translate(-50%,-50%)}
.direct-pie-preview>span,.native-pie-progress>span{position:absolute;z-index:2;inset:50% auto auto 50%;transform:translate(-50%,-50%);color:#123b69;font-weight:950;font-size:.9rem;white-space:nowrap}
.direct-pie-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.pie-angle-field>span{display:flex;align-items:center;gap:8px}.pie-key,.native-pie-key{display:inline-block;width:13px;height:13px;border-radius:4px;flex:0 0 auto}
.pie-key-1,.native-pie-key-1{background:#7652f6}.pie-key-2,.native-pie-key-2{background:#2f80ed}.pie-key-3,.native-pie-key-3{background:#f4b942}.pie-key-4,.native-pie-key-4{background:#4abf9a}.pie-key-5,.native-pie-key-5{background:#ef6a83}.pie-key-6,.native-pie-key-6{background:#8a6fd1}

.native-pie-builder{display:grid;grid-template-columns:minmax(190px,.72fr) minmax(300px,1.28fr);gap:20px;align-items:center;padding:15px;border:1px solid #d9e4f2;border-radius:18px;background:#f8faff}
.native-pie-work{display:grid;gap:14px}.native-pie-legend{display:grid;gap:7px}.native-pie-legend-row{display:grid;grid-template-columns:16px minmax(0,1fr) auto;gap:9px;align-items:center;border:1px solid #dce6f1;border-radius:11px;background:#fff;padding:8px 10px;color:#61738d}
.native-pie-legend-row.current{border-color:#7950ee;background:#f3efff;color:#352268}.native-pie-legend-row.done{border-color:#8ad8b9;background:#effbf5;color:#176c4e}
.native-pie-legend-row span{font-weight:820}.native-pie-legend-row strong{color:#103766}
.native-pie-equation{display:flex;align-items:center;gap:11px;flex-wrap:wrap;border:2px solid #d9ccff;border-radius:14px;background:#fff;padding:13px;color:#103766}
.native-pie-equation>span{width:100%;font-weight:900;color:#6b4ce2}.native-pie-equation>strong{font-size:clamp(1.12rem,2.4vw,1.55rem)}
.native-pie-equation .native-inline-answer input{width:94px}

@media(max-width:760px){
  .pie-question-layout,.direct-pie-layout,.native-pie-builder{grid-template-columns:1fr}
  .pie-question-chart{width:min(210px,64vw)}
  .direct-pie-preview,.native-pie-progress{width:min(220px,64vw)}
  .direct-pie-fields{grid-template-columns:1fr}
  .visual-modal-canvas>.pie-question-layout{width:720px;min-width:720px}
}

/* =========================================================
   WORKSTREAM 2 · AUTHENTIC SOURCE-CROP MIXED MODE
   ========================================================= */
:root{
  --mixed-ink:#102f5b;
  --mixed-muted:#607493;
  --mixed-line:#d7e2f2;
  --mixed-blue:#2f6feb;
  --mixed-purple:#7652f6;
  --mixed-soft:#f6f9ff;
  --mixed-warm:#fff8e6;
  --mixed-good:#117a55;
  --mixed-good-bg:#e9fbf3;
  --mixed-bad:#b23a48;
  --mixed-bad-bg:#fff0f2;
}
.app-shell{max-width:1480px;margin:0 auto;padding:28px 24px 70px}
.mixed-hero,.mixed-picker,.mixed-workspace,.mixed-section{font-family:inherit;color:var(--mixed-ink)}
.mixed-hero{display:grid;grid-template-columns:1fr 220px;gap:36px;align-items:center;padding:44px;border:1px solid var(--mixed-line);border-radius:32px;background:linear-gradient(135deg,#fff 0%,#f2f6ff 100%);box-shadow:0 22px 60px rgba(31,67,122,.08)}
.mixed-hero h1{font-size:clamp(2.1rem,4vw,4.25rem);line-height:1.02;margin:10px 0 16px;max-width:900px}
.mixed-hero p{font-size:1.15rem;line-height:1.65;color:var(--mixed-muted);max-width:850px}
.mixed-hero img{width:100%;max-height:220px;object-fit:contain}
.mixed-section{margin-top:28px;padding:30px;border:1px solid var(--mixed-line);border-radius:28px;background:#fff}
.mixed-section h2{margin:0 0 20px;font-size:1.55rem}
.mixed-year-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.mixed-year-card{min-height:112px;border:1.5px solid #bfd0ea;border-radius:18px;background:#fff;color:var(--mixed-ink);padding:20px;text-align:left;display:flex;flex-direction:column;gap:8px;cursor:pointer}
.mixed-year-card strong{font-size:1.25rem}.mixed-year-card small{color:var(--mixed-muted);line-height:1.4}.mixed-year-card.active:hover{border-color:var(--mixed-blue);transform:translateY(-2px);box-shadow:0 12px 28px rgba(47,111,235,.12)}
.mixed-year-card.disabled{opacity:.48;cursor:not-allowed;background:#f7f9fc}
.mixed-toolbar{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:12;padding:12px 0;background:rgba(247,250,255,.94);backdrop-filter:blur(12px)}
.mixed-toolbar>span{margin-left:auto;font-weight:800;color:var(--mixed-purple);letter-spacing:.04em}
.mixed-menu-button{border:1px solid #cbd9ec;background:#fff;color:var(--mixed-ink);border-radius:13px;padding:11px 15px;font-weight:800;display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.mixed-picker-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:24px 0 22px;padding:30px;border:1px solid var(--mixed-line);border-radius:26px;background:#fff}
.mixed-picker-head h1{font-size:2.4rem;margin:7px 0}.mixed-picker-head p{color:var(--mixed-muted);font-size:1.05rem;line-height:1.55;max-width:820px}
.mixed-item-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.mixed-item-card{border:1px solid var(--mixed-line);border-radius:20px;background:#fff;color:var(--mixed-ink);padding:20px;text-align:left;display:flex;align-items:center;gap:16px;cursor:pointer;transition:.18s ease}
.mixed-item-card>span{min-width:58px;height:44px;padding:0 8px;border-radius:14px;background:#eee9ff;color:var(--mixed-purple);display:grid;place-items:center;font-weight:900;font-size:.92rem;line-height:1;flex:0 0 auto}
.mixed-item-card strong{display:block;font-size:1.07rem;margin-bottom:6px}.mixed-item-card small{color:var(--mixed-muted)}
.mixed-item-card:hover{border-color:var(--mixed-purple);transform:translateY(-2px);box-shadow:0 12px 26px rgba(118,82,246,.1)}
.mixed-primary,.mixed-secondary{border:0;border-radius:14px;padding:13px 20px;font-weight:900;font-size:1rem;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.mixed-primary{background:linear-gradient(135deg,var(--mixed-purple),var(--mixed-blue));color:#fff;box-shadow:0 9px 20px rgba(74,92,222,.18)}
.mixed-secondary{background:#fff;color:var(--mixed-ink);border:1px solid #c8d7eb}.mixed-primary.compact,.mixed-secondary.compact{padding:10px 15px;font-size:.92rem}
.mixed-lesson-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px;align-items:start}
.mixed-source-card,.mixed-answer-card,.mixed-support,.mixed-qira-note{border:1px solid var(--mixed-line);background:#fff;border-radius:24px;box-shadow:0 10px 30px rgba(25,56,103,.05)}
.mixed-source-card{overflow:hidden}.mixed-source-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;border-bottom:1px solid #e4ebf6}.mixed-source-head div{display:flex;flex-direction:column;gap:3px}.mixed-source-head span{color:var(--mixed-purple);font-weight:900;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}.mixed-source-head strong{font-size:1rem}
.mixed-zoom-button{width:42px;height:42px;border:0;border-radius:50%;background:#204a7e;color:#fff;display:grid;place-items:center;cursor:pointer;flex:0 0 auto}.mixed-zoom-button svg{width:22px}
.mixed-crop-button{display:block;width:100%;padding:16px;border:0;background:#fff;cursor:zoom-in}.mixed-crop-button img{display:block;width:100%;height:auto;object-fit:contain;object-position:left top;border-radius:12px}
.mixed-source-note{margin:0;padding:12px 18px 16px;color:var(--mixed-muted);font-size:.82rem;border-top:1px solid #edf1f7}
.mixed-answer-card{margin-top:18px;padding:22px}.mixed-answer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.mixed-answer-head span{font-size:1.25rem;font-weight:900}.mixed-answer-head p{margin:6px 0 0;color:var(--mixed-muted);line-height:1.45}
.mixed-answer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mixed-answer-grid.pie-fields{grid-template-columns:repeat(4,minmax(0,1fr))}
.mixed-answer-field,.mixed-reason-field{display:flex;flex-direction:column;gap:7px;font-weight:800;color:var(--mixed-ink)}.mixed-answer-field>div{display:flex;align-items:center;border:1.6px solid #b9cce5;border-radius:13px;background:#fff;overflow:hidden;min-height:50px}.mixed-answer-field b{padding:0 12px;color:#425f85}.mixed-answer-field input{border:0;outline:0;min-width:0;width:100%;font:inherit;padding:13px;background:transparent}.mixed-answer-field.wrong>div,.mixed-reason-field.wrong textarea{border-color:#e86c7a;background:var(--mixed-bad-bg)}
.mixed-reason-field{margin-top:13px}.mixed-reason-field textarea{min-height:94px;border:1.6px solid #b9cce5;border-radius:13px;padding:13px;font:inherit;resize:vertical}
.mixed-answer-actions{display:flex;justify-content:flex-end;margin-top:16px}.mixed-main-feedback{margin-top:16px;border-radius:15px;padding:15px 17px}.mixed-main-feedback.correct{background:var(--mixed-good-bg);color:var(--mixed-good)}.mixed-main-feedback.wrong{background:var(--mixed-bad-bg);color:var(--mixed-bad)}.mixed-main-feedback>div{margin-top:8px;display:flex;gap:8px;flex-wrap:wrap}.mixed-result-actions{display:flex!important;gap:10px!important;margin-top:13px!important}
.mixed-choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.mixed-choice-grid button{min-height:54px;border:1.5px solid #bfd0e6;border-radius:13px;background:#fff;color:var(--mixed-ink);font-weight:900;cursor:pointer}.mixed-choice-grid button.selected{border-color:var(--mixed-purple);background:#f0ebff;color:var(--mixed-purple)}
.mixed-binary-table{overflow:auto;border:1px solid #d4dfed;border-radius:15px}.mixed-binary-head,.mixed-binary-row{display:grid;grid-template-columns:150px repeat(5,minmax(70px,1fr));align-items:center}.mixed-binary-head>* ,.mixed-binary-row>*{padding:11px;border-right:1px solid #dce5f0;border-bottom:1px solid #dce5f0;text-align:center}.mixed-binary-row:last-child>*{border-bottom:0}.mixed-binary-head strong{font-size:.8rem}.mixed-binary-row b{text-align:left}.mixed-binary-row button{margin:7px auto;padding:0;width:34px;height:34px;border-radius:9px;border:1px solid #b8c9df;background:#fff;font-weight:900;cursor:pointer}.mixed-binary-row button.selected{background:var(--mixed-purple);color:#fff;border-color:var(--mixed-purple)}
.mixed-support{margin-top:18px;padding:14px}
.mixed-support-tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;overflow:hidden}
.mixed-support-tabs button,.mixed-support-panel{--phase:#7652f6;--phase-soft:#f1edff;--phase-border:#d8cdfd;--phase-shadow:rgba(118,82,246,.17)}
.mixed-support-tabs .phase-story,.mixed-support-panel.phase-story{--phase:#2f6fed;--phase-soft:#edf4ff;--phase-border:#bed2ff;--phase-shadow:rgba(47,111,237,.18)}
.mixed-support-tabs .phase-explain,.mixed-support-panel.phase-explain{--phase:#7a4cf4;--phase-soft:#f1edff;--phase-border:#d4c6ff;--phase-shadow:rgba(122,76,244,.18)}
.mixed-support-tabs .phase-information,.mixed-support-panel.phase-information{--phase:#169568;--phase-soft:#eaf9f2;--phase-border:#b8e5d1;--phase-shadow:rgba(22,149,104,.18)}
.mixed-support-tabs .phase-question,.mixed-support-panel.phase-question{--phase:#e47a16;--phase-soft:#fff4e8;--phase-border:#f6c999;--phase-shadow:rgba(228,122,22,.18)}
.mixed-support-tabs .phase-working,.mixed-support-panel.phase-working{--phase:#c442a5;--phase-soft:#fff0fb;--phase-border:#efbce3;--phase-shadow:rgba(196,66,165,.18)}
.mixed-support-tabs .phase-quality,.mixed-support-panel.phase-quality{--phase:#078a9a;--phase-soft:#eaf9fb;--phase-border:#b7e1e6;--phase-shadow:rgba(7,138,154,.18)}
.mixed-support-tabs button{min-width:0;border:1.5px solid var(--phase-border);border-radius:15px;background:linear-gradient(145deg,#fff 35%,var(--phase-soft));color:var(--mixed-ink);padding:10px 9px;display:flex;align-items:center;gap:9px;text-align:left;cursor:pointer;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease,transform .16s ease}
.mixed-support-tabs button:hover{border-color:var(--phase);transform:translateY(-1px);box-shadow:0 7px 16px var(--phase-shadow)}
.mixed-support-tabs button:focus-visible{outline:3px solid var(--phase-border);outline-offset:2px}
.mixed-support-tabs button b{width:34px;height:34px;border-radius:11px;background:var(--phase-soft);color:var(--phase);border:1px solid var(--phase-border);display:grid;place-items:center;flex:0 0 auto;font-size:1rem}
.mixed-support-tabs button span{min-width:0;font-size:.76rem;line-height:1.18;color:#405d82;font-weight:800;white-space:normal;overflow-wrap:anywhere;text-wrap:balance}
.mixed-support-tabs button.active{border-color:var(--phase);background:var(--phase-soft);box-shadow:0 9px 22px var(--phase-shadow)}
.mixed-support-tabs button.active b{background:var(--phase);border-color:var(--phase);color:#fff}
.mixed-support-tabs button.active span{color:var(--phase)}
.mixed-support-panel{margin-top:12px;border:1.5px solid var(--phase-border);border-top:4px solid var(--phase);border-radius:18px;background:#fbfdff;overflow:hidden;box-shadow:0 8px 22px var(--phase-shadow)}
.mixed-support-panel>header{display:flex;flex-direction:column;gap:4px;padding:15px 17px;border-bottom:1px solid var(--phase-border);background:linear-gradient(90deg,var(--phase-soft),#fff)}
.mixed-support-panel>header strong{font-size:1.04rem;color:var(--phase)}.mixed-support-panel>header small{color:var(--mixed-muted);line-height:1.4}
.mixed-support-content{padding:16px 17px;line-height:1.62;color:#28486d}
.mixed-support-content>p{margin:0}.mixed-support-content ul{margin:0;padding-left:22px}.mixed-support-content li+li{margin-top:7px}
.mixed-quality-list{display:grid;gap:9px}.mixed-quality-list>div{border:1px solid #dbe5f0;border-radius:13px;padding:12px;background:#fff}.mixed-quality-list span{display:block;font-size:.8rem;color:var(--mixed-muted)}.mixed-quality-list strong{display:block;margin:3px 0;font-size:1rem}.mixed-quality-list p{margin:0;color:var(--mixed-muted)}.mixed-context-check{padding:12px;border-radius:13px;background:#eff8f5;color:#146b50;font-weight:700}
.mixed-qira-note{position:sticky;top:82px;padding:19px;display:flex;gap:13px;background:#f4efff;border-color:#ddcffd}.mixed-qira-note img{width:60px;height:60px;object-fit:contain}.mixed-qira-note strong{color:var(--mixed-purple)}.mixed-qira-note p{margin:7px 0 0;line-height:1.5;color:#405c7d}
.mixed-working-stack{display:grid;gap:11px}.mixed-working-loading{padding:18px;border-radius:13px;background:#f4f7fb;color:var(--mixed-muted)}.mixed-working-card{border:1px solid #d8e1ed;border-radius:15px;background:#fff;padding:14px}.mixed-working-card.locked{opacity:.58;background:#f6f8fb}.mixed-working-card.complete,.mixed-working-card.shown{border-color:#addfcb;background:#f6fffb}.mixed-working-title{display:flex;align-items:center;gap:11px}.mixed-working-title>span{width:32px;height:32px;border-radius:10px;background:#eee9ff;color:var(--mixed-purple);display:grid;place-items:center;font-weight:900;flex:0 0 auto}.mixed-working-title>div{display:flex;flex-direction:column;gap:3px;min-width:0}.mixed-working-title small{color:var(--mixed-muted)}.mixed-working-title>b{margin-left:auto;color:var(--mixed-good)}.mixed-engine-view{margin-top:13px;padding:12px;border-radius:13px;background:#f7f9fd;overflow:auto}.mixed-working-actions{display:flex;justify-content:flex-end;margin-top:10px}.mixed-step-feedback{margin-top:9px;padding:9px 11px;border-radius:10px;font-weight:800}.mixed-step-feedback.correct{background:var(--mixed-good-bg);color:var(--mixed-good)}.mixed-step-feedback.wrong{background:var(--mixed-bad-bg);color:var(--mixed-bad)}.mixed-shown-solution{margin-top:11px;padding:12px;border-radius:12px;background:#fff}.mixed-shown-solution>strong{font-size:1.12rem}.mixed-shown-solution p{margin:6px 0 0;color:var(--mixed-muted)}
.mixed-crop-modal[hidden]{display:none}.mixed-crop-modal{position:fixed;inset:0;z-index:9999}.mixed-crop-backdrop{position:absolute;inset:0;background:rgba(9,29,56,.76)}.mixed-crop-dialog{position:absolute;inset:22px;display:grid;grid-template-rows:auto 1fr auto;background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 30px 90px rgba(0,0,0,.28)}.mixed-crop-dialog header,.mixed-crop-dialog footer{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1px solid #dce4ef}.mixed-crop-dialog header button{margin-left:auto;width:42px;height:42px;border:0;border-radius:13px;background:#edf2f9;color:var(--mixed-ink);font-size:1.8rem;cursor:pointer}.mixed-crop-dialog footer{justify-content:center;border-top:1px solid #dce4ef;border-bottom:0}.mixed-crop-dialog footer button{border:1px solid #c9d6e8;background:#fff;color:var(--mixed-ink);border-radius:10px;padding:9px 14px;font-weight:900;cursor:pointer}.mixed-crop-dialog output{min-width:70px;text-align:center;font-weight:900}.mixed-crop-viewport{overflow:hidden;touch-action:none;cursor:grab;background:#e8eef6}.mixed-crop-viewport.dragging{cursor:grabbing}.mixed-crop-canvas{width:100%;height:100%;display:flex;align-items:flex-start;justify-content:center;transform-origin:center top;transition:transform .04s linear}.mixed-crop-canvas img{display:block;max-width:100%;height:auto;background:#fff;user-select:none;-webkit-user-drag:none}
.mixed-modal-open{overflow:hidden}
/* Runtime adapter containment */
.mixed-engine-view .official-asas-engine-frame{width:100%;min-height:620px;border:0;border-radius:12px;background:#fff}.mixed-engine-view .official-engine-trustline{display:flex;flex-direction:column;gap:4px;margin-bottom:10px}.mixed-engine-view .official-engine-trustline span{font-size:.78rem;color:var(--mixed-muted)}
@media(max-width:1050px){.mixed-lesson-grid{grid-template-columns:1fr}.mixed-qira-note{position:static}.mixed-answer-grid.pie-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.mixed-support-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){.app-shell{padding:14px 12px 60px}.mixed-hero{grid-template-columns:1fr;padding:25px;border-radius:23px}.mixed-hero img{max-height:150px}.mixed-year-grid,.mixed-item-grid{grid-template-columns:1fr}.mixed-picker-head{align-items:stretch;flex-direction:column;padding:22px}.mixed-picker-head h1{font-size:2rem}.mixed-support-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;overflow:visible;padding:0}.mixed-support-tabs button{min-width:0;min-height:64px;padding:9px 8px}.mixed-support-tabs button b{width:32px;height:32px}.mixed-support-tabs button span{font-size:.74rem}.mixed-source-head{padding:14px}.mixed-crop-button{padding:8px}.mixed-crop-button img{max-height:none}.mixed-answer-card,.mixed-support{padding:16px}.mixed-answer-head{flex-direction:column}.mixed-answer-head .mixed-secondary{width:100%}.mixed-answer-grid,.mixed-answer-grid.pie-fields{grid-template-columns:1fr}.mixed-choice-grid{grid-template-columns:1fr}.mixed-answer-actions .mixed-primary{width:100%}.mixed-binary-head,.mixed-binary-row{grid-template-columns:100px repeat(5,72px)}.mixed-crop-dialog{inset:8px;border-radius:16px}.mixed-crop-canvas{justify-content:flex-start}.mixed-crop-canvas img{max-width:none;width:1100px}.mixed-result-actions{flex-direction:column}.mixed-result-actions button{width:100%}}

/* All-years paper picker and non-numeric answer workspaces */
.mixed-paper-filter{display:flex;gap:9px;overflow-x:auto;padding:2px 1px 16px;scrollbar-width:thin}
.mixed-paper-filter button{flex:0 0 auto;border:1.5px solid #c8d7eb;border-radius:999px;background:#fff;color:var(--mixed-ink);padding:10px 14px;font-weight:850;cursor:pointer}
.mixed-paper-filter button small{margin-left:6px;color:var(--mixed-muted)}
.mixed-paper-filter button.active{border-color:var(--mixed-purple);background:#f0ebff;color:var(--mixed-purple);box-shadow:0 7px 18px rgba(118,82,246,.12)}
.mixed-paper-filter button.active small{color:inherit}
.mixed-answer-grid.text-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
.mixed-self-check{width:100%;border:1.6px solid #b9cce5;border-radius:15px;background:#fff;color:var(--mixed-ink);padding:16px;display:flex;align-items:center;gap:12px;text-align:left;cursor:pointer}
.mixed-self-check>span{width:34px;height:34px;border-radius:50%;border:2px solid #aebfd7;display:grid;place-items:center;flex:0 0 auto;font-weight:950}
.mixed-self-check.selected{border-color:var(--mixed-good);background:var(--mixed-good-bg);color:var(--mixed-good)}
.mixed-self-check.selected>span{border-color:var(--mixed-good);background:var(--mixed-good);color:#fff}
@media(max-width:760px){.mixed-answer-grid.text-fields{grid-template-columns:1fr}.mixed-paper-filter{margin-inline:-2px}}

@media(max-width:699px){body.embedded-mode .app-shell{padding-top:7px}}

/* Admin-managed Sir Edy answer videos */
.mixed-source-actions{display:flex!important;flex-direction:row!important;align-items:center;justify-content:flex-end;gap:9px}
.mixed-video-button{display:inline-flex;align-items:center;gap:8px;border:1px solid #d5c8ff;background:#f3efff;color:#6841d9;border-radius:999px;padding:10px 14px;font-weight:950;cursor:pointer;white-space:nowrap}
.mixed-video-button:hover,.mixed-video-button:focus-visible{background:#e9e1ff;outline:3px solid rgba(124,85,232,.14)}
.mixed-video-button span{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#7548e8;color:#fff;font-size:.68rem;padding-left:2px}
.mixed-video-modal[hidden]{display:none}.mixed-video-modal{position:fixed;inset:0;z-index:10010}.mixed-video-backdrop{position:absolute;inset:0;background:rgba(9,29,56,.78)}
.mixed-video-dialog{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(960px,calc(100vw - 32px));background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 30px 100px rgba(0,0,0,.34)}
.mixed-video-dialog header{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid #dce4ef}.mixed-video-dialog header strong{font-size:1.02rem}.mixed-video-dialog header button{margin-left:auto;width:42px;height:42px;border:0;border-radius:13px;background:#edf2f9;color:var(--mixed-ink);font-size:1.8rem;cursor:pointer}
.mixed-video-stage{position:relative;aspect-ratio:16/9;background:#071a31}.mixed-video-stage iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(max-width:760px){.mixed-source-actions{gap:6px}.mixed-video-button{padding:9px 10px;font-size:.82rem}.mixed-video-dialog{width:calc(100vw - 16px);border-radius:16px}}
@media(max-width:430px){.mixed-video-button{width:42px;height:42px;padding:0;justify-content:center}.mixed-video-button span{width:25px;height:25px}.mixed-video-button{font-size:0}.mixed-video-button span{font-size:.7rem}}
/* WORKSTREAM 2.6 · MULTI-MATERIAL SUPPORT */
.mixed-material-button.type-pdf{border-color:#ffc9a6;background:#fff5ed;color:#b45309}
.mixed-material-button.type-pdf:hover,.mixed-material-button.type-pdf:focus-visible{background:#ffe9d7;outline:3px solid rgba(234,88,12,.12)}
.mixed-material-button.type-pdf span{background:#d76516;font-size:.55rem;padding-left:0}
.mixed-material-button.type-image{border-color:#a9ddc8;background:#effbf6;color:#176b51}
.mixed-material-button.type-image:hover,.mixed-material-button.type-image:focus-visible{background:#def6eb;outline:3px solid rgba(23,107,81,.12)}
.mixed-material-button.type-image span{background:#1d8b68;font-size:.9rem;padding-left:0}
.mixed-material-modal .mixed-video-dialog header>div{display:grid;gap:2px}
.mixed-material-modal .mixed-video-dialog header small{color:#6a7d96;text-transform:capitalize;font-size:.75rem}
.mixed-material-stage.image-stage{aspect-ratio:auto;min-height:min(70vh,620px);padding:18px;display:grid;place-items:center;overflow:auto;background:#0b1728}
.mixed-material-stage.image-stage img{display:block;max-width:100%;max-height:72vh;object-fit:contain}
.mixed-material-stage.direct-video-stage{display:grid;place-items:center}
.mixed-material-stage.direct-video-stage video{width:100%;height:100%;max-height:72vh;background:#000}
@media(max-width:430px){.mixed-material-button span{font-size:.62rem!important}}

.mixed-interactive-card{margin-top:18px;border:1px solid var(--mixed-line);background:#fff;border-radius:24px;box-shadow:0 10px 30px rgba(25,56,103,.05);overflow:hidden}
.mixed-interactive-head{display:flex;justify-content:space-between;gap:18px;padding:18px 20px;border-bottom:1px solid #e4ebf6;align-items:flex-start}
.mixed-interactive-head>div{display:flex;flex-direction:column;gap:4px}
.mixed-interactive-head span{color:#169568;font-weight:900;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}
.mixed-interactive-head strong{font-size:1.04rem;color:var(--mixed-ink)}
.mixed-interactive-head p{margin:0;color:var(--mixed-muted);line-height:1.45}
.mixed-interactive-modes{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.mode-chip,.tool-chip{border:1.5px solid #d6dfec;background:#fff;color:#274567;border-radius:999px;padding:9px 14px;font-weight:800;cursor:pointer;transition:.16s ease}
.mode-chip.active,.tool-chip.active{background:#eaf9f2;border-color:#169568;color:#0d7a54;box-shadow:0 7px 16px rgba(22,149,104,.14)}
.interactive-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:14px}
.interactive-body-copy strong{display:block;font-size:1rem;color:#16345c;margin-bottom:4px}
.interactive-body-copy p{margin:0;color:#486684;line-height:1.5}
.interactive-progress{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.interactive-progress strong{color:#16345c}
.interactive-progress.practice{align-items:flex-start}
.interactive-toolset{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
.interactive-canvas{position:relative;background:#f8fbff;border:1px solid #dce6f4;border-radius:20px;padding:10px;overflow:hidden}
.interactive-canvas img{display:block;width:100%;height:auto;border-radius:14px}
.interactive-layer{position:absolute;inset:10px;pointer-events:none}
.interactive-hotspot{position:absolute;border:2px dashed rgba(22,149,104,.2);background:rgba(22,149,104,.04);border-radius:14px;cursor:pointer;pointer-events:auto;transition:.16s ease}
.interactive-hotspot:hover{border-color:rgba(22,149,104,.45);background:rgba(22,149,104,.08)}
.interactive-hotspot.selected{opacity:0}
.interactive-shape{position:absolute;pointer-events:none}
.interactive-shape.type-underline{border-bottom:6px solid #169568;border-radius:12px}
.interactive-shape.type-circle{border:5px solid #e47a16;border-radius:999px;background:rgba(228,122,22,.08)}
.interactive-shape.active{box-shadow:0 0 0 4px rgba(22,149,104,.15),0 0 22px rgba(22,149,104,.18)}
.interactive-feedback{padding:12px 14px;border-radius:16px;background:#f2f7ff;border:1px solid #d4e1f5;color:#204363;font-weight:700}
@media(max-width:760px){
  .mixed-interactive-head{padding:16px;flex-direction:column}
  .mixed-interactive-modes{justify-content:flex-start}
  .interactive-body{padding:16px}
  .interactive-progress,.interactive-progress.practice{align-items:stretch}
  .interactive-toolset{justify-content:flex-start}
}

/* QiRa 0.1.29 design-language bridge. Content and SE-IQEQ logic unchanged. */
:root{
  --qira-canvas:#f5f8fc;
  --qira-navy:#0a315e;
  --qira-blue:#3478ee;
  --qira-purple:#7a55ee;
  --qira-orange:#ff873d;
  --qira-border:#dce5f0;
  --qira-shadow:0 18px 48px rgba(27,60,105,.10);
}
html,body{background:var(--qira-canvas);color:var(--qira-navy);font-family:Inter,ui-rounded,"Segoe UI",Arial,sans-serif}
body.embedded-mode{background:transparent}
body.embedded-mode .app-shell{padding-top:0}
.app-shell{width:min(100%,1120px);padding:18px 16px 112px}
.mixed-hero{
  grid-template-columns:150px minmax(0,1fr);
  gap:28px;
  padding:28px 32px;
  border:1px solid #ffd3ba;
  border-radius:30px;
  background:radial-gradient(circle at 96% 5%,rgba(255,135,61,.18),transparent 38%),linear-gradient(145deg,#fff,#fff4ec);
  box-shadow:var(--qira-shadow);
}
.mixed-hero>div{grid-column:2;grid-row:1}
.mixed-hero img{
  grid-column:1;
  grid-row:1;
  width:150px;
  height:150px;
  object-fit:contain;
  filter:drop-shadow(0 16px 22px rgba(36,65,111,.18));
}
.mixed-hero .eyebrow{
  display:inline-flex;
  min-height:30px;
  align-items:center;
  padding:5px 13px;
  border-radius:999px;
  background:#fff0e5;
  color:#ef742f;
  letter-spacing:0;
  text-transform:none;
}
.mixed-hero h1{margin:10px 0 10px;font-size:clamp(2.05rem,4.5vw,3.4rem);line-height:1.03;letter-spacing:-.035em;color:var(--qira-navy)}
.mixed-hero p{margin:0;color:#62758f;font-size:1rem;line-height:1.55}
.mixed-section{margin-top:26px;padding:0;border:0;background:transparent;box-shadow:none}
.mixed-section h2{margin:0 0 18px;color:var(--qira-navy)}
.mixed-year-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 14px}
.mixed-year-card{
  --year-main:#3478ee;
  --year-alt:#6ca5ff;
  min-height:190px;
  display:grid;
  justify-items:center;
  align-content:start;
  gap:10px;
  padding:10px 4px 14px;
  border:2px solid transparent;
  border-radius:26px;
  background:transparent;
  text-align:center;
}
.mixed-year-card:before{
  content:attr(data-year);
  width:122px;
  height:122px;
  display:grid;
  place-items:center;
  border-radius:34px;
  background:linear-gradient(145deg,var(--year-main),var(--year-alt));
  color:#fff;
  font-size:3.15rem;
  font-weight:950;
  box-shadow:inset 0 1px rgba(255,255,255,.55),0 15px 25px color-mix(in srgb,var(--year-main) 22%,transparent);
}
.mixed-year-card[data-year="1"]{--year-main:#f4b942;--year-alt:#ffd166}
.mixed-year-card[data-year="2"]{--year-main:#55be49;--year-alt:#82d866}
.mixed-year-card[data-year="3"]{--year-main:#00b7ab;--year-alt:#22cec4}
.mixed-year-card[data-year="4"]{--year-main:#3478ee;--year-alt:#6ca5ff}
.mixed-year-card[data-year="5"]{--year-main:#7658ee;--year-alt:#a780ff}
.mixed-year-card[data-year="6"]{--year-main:#ff7d36;--year-alt:#ffad68}
.mixed-year-card strong{font-size:1.08rem;color:var(--qira-navy)}
.mixed-year-card small{max-width:22ch;text-align:center;color:#657892;font-size:.82rem;line-height:1.4}
.mixed-year-card.active:hover{transform:translateY(-4px);border-color:#d5dfef;background:#ffffffb8;box-shadow:0 15px 34px rgba(30,65,112,.09)}
.mixed-picker,.mixed-source-card,.mixed-answer-card,.mixed-support,.mixed-interactive-card,.question-card,.step-card,.summary-card{
  border-color:var(--qira-border);
  border-radius:26px;
  box-shadow:var(--qira-shadow);
}
.mixed-primary,.action-button,.start-button{border-radius:16px;background:linear-gradient(135deg,var(--qira-blue),#5d8cff)}
.mixed-secondary,.mixed-menu-button,.menu-button{border-radius:15px}
.mixed-support-tabs{border-radius:18px}
@media(max-width:760px){
  .app-shell{padding:10px 10px calc(104px + env(safe-area-inset-bottom))}
  .mixed-hero{grid-template-columns:118px minmax(0,1fr);gap:16px;padding:20px 16px;border-radius:25px}
  .mixed-hero img{width:118px;height:118px}
  .mixed-hero h1{font-size:clamp(1.75rem,7vw,2.45rem)}
  .mixed-hero p{font-size:.86rem;line-height:1.45}
  .mixed-year-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 5px}
  .mixed-year-card{min-height:170px;padding-inline:2px}
  .mixed-year-card:before{width:108px;height:108px;border-radius:31px;font-size:2.8rem}
  .mixed-year-card strong{font-size:1rem}
  .mixed-year-card small{font-size:.76rem}
}
@media(max-width:430px){
  .mixed-hero{grid-template-columns:98px minmax(0,1fr);gap:11px;padding:17px 12px}
  .mixed-hero img{width:98px;height:98px}
  .mixed-hero h1{font-size:1.65rem}
  .mixed-hero p{font-size:.78rem}
  .mixed-year-card:before{width:100px;height:100px;border-radius:29px}
}

/* 0.1.30 owner correction: mobile-native authentic source viewer. */
.mixed-crop-viewport {
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
  cursor: default;
}
.mixed-crop-viewport.is-zoomed {
  overflow: hidden;
  touch-action: none;
  cursor: grab;
}
.mixed-crop-viewport.is-zoomed.dragging { cursor: grabbing; }
.mixed-crop-canvas {
  width: 100%;
  min-height: 100%;
  height: auto;
  align-items: flex-start;
  justify-content: center;
  transform-origin: center top;
  transition: none;
  will-change: transform;
}
.mixed-crop-canvas img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  object-position: top center;
}
@media (max-width: 760px) {
  .mixed-crop-dialog { inset: 6px; }
  .mixed-crop-dialog header,
  .mixed-crop-dialog footer { padding-inline: 10px; }
  .mixed-crop-dialog footer { flex-wrap: wrap; }
  .mixed-crop-canvas { justify-content: center; }
  .mixed-crop-canvas img { width: 100%; max-width: 100%; }
}

/* QIRA035 · guided SE-IQEQ sample for Year 6 Paper 1 Question 1(a) only */
.guided-support{scroll-margin-top:78px;padding:14px}
.guided-support-tabs{grid-template-columns:repeat(5,minmax(0,1fr))}
.guided-support-tabs .phase-se,.mixed-support-panel.phase-se{--phase:#4f63df;--phase-soft:#eef1ff;--phase-border:#c8d0ff;--phase-shadow:rgba(79,99,223,.18)}
.guided-support-tabs button.complete:not(.active){border-color:#9ad9bd;background:#f0fbf6}
.guided-support-tabs button.complete:not(.active) b{background:#16875f;border-color:#16875f;color:#fff}
.guided-support-tabs button:disabled{cursor:not-allowed;opacity:.48;transform:none;box-shadow:none}
.guided-support-tabs button b{width:38px}
.guided-panel{overflow:visible}
.guided-se-content{display:grid;gap:13px}
.guided-se-content>p{margin:0;padding:12px 14px;border-radius:13px;background:#eef3ff;color:#264979;font-weight:800}
.guided-se-content>div{padding:14px;border:1px solid #dce5f3;border-radius:14px;background:#fff}
.guided-se-content strong{display:block;color:#405d82;margin-bottom:6px}
.guided-se-content p{margin:0}
.guided-activity{display:grid;gap:13px}
.guided-activity>p,.guided-working-intro>p{margin:0;color:#405d82;font-weight:800}
.guided-chip-grid,.guided-choice-grid,.guided-check-grid{display:grid;gap:9px}
.guided-chip,.guided-choice,.guided-check{width:100%;border:1.5px solid #cbd8e9;border-radius:14px;background:#fff;color:#173b67;padding:13px 14px;display:flex;align-items:center;gap:11px;text-align:left;font:inherit;font-weight:800;line-height:1.4;cursor:pointer}
.guided-chip>span,.guided-choice>span,.guided-check>span{width:30px;height:30px;border-radius:10px;background:#eef3fa;color:#52709a;display:grid;place-items:center;flex:0 0 auto;font-weight:950}
.guided-chip:hover,.guided-choice:hover,.guided-check:hover{border-color:#7652f6}
.guided-chip.selected,.guided-check.selected{border-color:#169568;background:#ecfaf4;color:#116b4d}
.guided-chip.selected>span,.guided-check.selected>span{background:#169568;color:#fff}
.guided-choice.selected{border-color:#7652f6;background:#f2efff;color:#5c3cc7}
.guided-choice.selected.correct{border-color:#169568;background:#ecfaf4;color:#116b4d}
.guided-choice.selected.correct>span{background:#169568;color:#fff}
.guided-choice.selected.wrong{border-color:#dd6474;background:#fff0f2;color:#a33a49}
.guided-choice.selected.wrong>span{background:#dd6474;color:#fff}
.guided-feedback{padding:11px 13px;border-radius:12px;background:#f4f7fb;color:#536b8b;font-weight:800}
.guided-feedback.correct{background:#eaf8f2;color:#13704f}
.guided-feedback.wrong{background:#fff0f2;color:#a43b4a}
.guided-working-intro{display:grid;gap:13px}
.guided-nav{position:sticky;bottom:0;z-index:5;padding:12px 14px 13px;border-top:1px solid var(--phase-border);background:rgba(255,255,255,.97);backdrop-filter:blur(12px)}
.guided-nav__question{width:100%;border:0;background:transparent;color:#385c88;font-weight:900;padding:2px 8px 10px;cursor:pointer}
.guided-nav__controls{display:grid;grid-template-columns:minmax(88px,1fr) auto minmax(110px,1fr);align-items:center;gap:10px}
.guided-nav__controls>span{text-align:center;font-size:.82rem;color:#607492;font-weight:900;white-space:nowrap}
.guided-nav button:disabled{opacity:.42;cursor:not-allowed;box-shadow:none}
.guided-nav>small{display:block;text-align:center;margin-top:8px;color:#946414;font-weight:800}
@media(max-width:760px){
  .guided-support-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .guided-support-tabs .phase-se{grid-column:1/-1}
  .guided-support-tabs button{min-height:72px}
  .guided-support-tabs .phase-se,.guided-support-tabs .phase-information,.guided-support-tabs .phase-question,.guided-support-tabs .phase-working,.guided-support-tabs .phase-quality{width:100%}
  .guided-nav{margin:0 -1px -1px;border-radius:0 0 17px 17px}
  .guided-nav__controls{grid-template-columns:1fr auto 1fr;gap:7px}
  .guided-nav__controls .mixed-primary,.guided-nav__controls .mixed-secondary{padding:10px 9px;font-size:.82rem}
  .guided-nav__controls>span{font-size:.76rem}
}


/* QIRA037 · Guided layout polish and optional engine help */
.guided-answer-card .mixed-answer-grid{grid-template-columns:1fr}
.guided-answer-actions{display:grid;grid-template-columns:1fr;gap:10px;justify-items:stretch;max-width:none;margin-left:0}
.guided-answer-actions .mixed-primary,.guided-answer-actions .mixed-secondary{width:100%}
.mixed-direct-step-answer{display:grid;grid-template-columns:1fr;gap:10px;align-items:end;margin-top:14px;padding:13px;border:1px solid #dce5f2;border-radius:13px;background:#fbfdff}
.mixed-direct-step-field{display:grid;gap:6px;min-width:0}.mixed-direct-step-field>span,.mixed-direct-step-fields label>span{font-size:.76rem;font-weight:900;color:var(--mixed-muted)}
.mixed-direct-step-field>div,.mixed-direct-step-fields label>div{display:flex;align-items:center;gap:7px}
.mixed-direct-step-field input,.mixed-direct-step-fields input{width:100%;min-width:0;border:2px solid #cbd9ed;border-radius:11px;background:#fff;padding:10px 12px;font-size:1.05rem;font-weight:900;color:var(--mixed-ink);outline:none}
.mixed-direct-step-field input:focus,.mixed-direct-step-fields input:focus{border-color:var(--mixed-purple);box-shadow:0 0 0 4px rgba(118,82,246,.12)}
.mixed-direct-step-choices{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.mixed-direct-step-choices button{border:1.5px solid #cbd9ed;border-radius:11px;background:#fff;padding:10px;color:var(--mixed-ink);font-weight:800}.mixed-direct-step-choices button.selected{border-color:var(--mixed-purple);background:#f0ebff;color:var(--mixed-purple)}
.mixed-direct-step-fields{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.mixed-direct-step-fields label{display:grid;gap:5px}
.mixed-direct-step-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.mixed-direct-step-actions .mixed-primary,.mixed-direct-step-actions .mixed-secondary{width:100%}
.mixed-direct-step-answer>.mixed-step-feedback{grid-column:1/-1;margin-top:0}
.guided-support .mixed-working-actions{justify-content:flex-start}
.guided-se-content>div>p{margin:0}
@media(max-width:760px){.guided-answer-actions{max-width:none;margin-left:0}.mixed-direct-step-answer{grid-template-columns:1fr}.mixed-direct-step-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.mixed-direct-step-choices,.mixed-direct-step-fields{grid-template-columns:1fr}}

.mixed-direct-step-equation{display:flex!important;align-items:center!important;gap:9px!important;flex-wrap:wrap}.mixed-direct-step-equation>strong{white-space:nowrap;color:var(--mixed-ink);font-size:1rem}.mixed-direct-step-equation>input{flex:0 0 128px!important;width:128px!important}.mixed-engine-bridge{margin-top:12px;padding:10px 12px;border-radius:11px;background:#f4f0ff;color:#4f36ae;font-weight:800;line-height:1.45}
@media(max-width:430px){.mixed-direct-step-equation>input{flex-basis:104px!important;width:104px!important}}

/* QIRA038 owner polish: keep engine provenance for audit internally, but do not expose
   technical adapter/version labels inside the learner-facing working panel. */
.mixed-engine-view .official-engine-trustline {
  display: none !important;
}

/* QIRA040 · Locked Papers 1–3 Y4–Y6 help flow
   Tunjuk Cara is Ajar Saya: no learner inputs, no technical engine labels. */
.mixed-engine-view .engine-source-badge,
.mixed-engine-view .official-engine-trustline{
  display:none!important;
}
.learner-teach-engine .engine-step-head{
  justify-content:flex-end;
}
.mixed-teach-actions{
  display:flex;
  justify-content:flex-end;
  margin-top:12px;
}
.mixed-teach-actions .mixed-primary{
  min-width:180px;
}
.mixed-step-feedback.help-complete{
  background:#eef9f4;
  color:#087451;
  border:1px solid #a8dfcb;
}
.mixed-direct-binary{
  grid-column:1/-1;
  display:grid;
  gap:7px;
  overflow-x:auto;
  padding-bottom:2px;
}
.mixed-direct-binary-head,
.mixed-direct-binary-row{
  display:grid;
  grid-template-columns:minmax(120px,1.25fr) repeat(var(--binary-days,5),minmax(42px,1fr));
  gap:6px;
  align-items:center;
  min-width:430px;
}
.mixed-direct-binary-head b{
  font-size:.72rem;
  text-align:center;
  color:var(--mixed-muted);
}
.mixed-direct-binary-row strong{
  font-size:.8rem;
  color:var(--mixed-ink);
}
.mixed-direct-binary-row button{
  min-height:40px;
  border:1.5px solid #cbd9ed;
  border-radius:10px;
  background:#fff;
  color:var(--mixed-good);
  font-weight:900;
}
.mixed-direct-binary-row button.selected{
  border-color:var(--mixed-good);
  background:var(--mixed-good-bg);
}
@media(max-width:760px){
  .mixed-teach-actions .mixed-primary{width:100%;min-width:0}
}