:root {
  --blue:#1a5276; --blue-light:#2e86c1; --blue-bg:#eaf4fb;
  --green:#1e8449; --green-bg:#d5f5e3;
  --red:#c0392b; --red-bg:#fadbd8;
  --yellow:#e67e22; --yellow-bg:#fef9e7;
  --grey:#f4f6f7; --grey2:#ecf0f1; --text:#1a1a2e; --muted:#7f8c8d;
  --radius:16px; --shadow:0 4px 24px rgba(0,0,0,0.10);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
body{font-family:'Segoe UI',Arial,sans-serif;background:linear-gradient(150deg,#1a5276 0%,#2e86c1 100%);min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:16px;}

/* ── SCREENS ── */
.screen{display:none;width:100%;max-width:560px;flex-direction:column;align-items:center;}
.screen.active{display:flex;}

/* ── CARD ── */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 24px;width:100%;}
.card+.card{margin-top:12px;}

/* ── TOP BAR ── */
.topbar{display:flex;align-items:center;justify-content:space-between;width:100%;margin-bottom:14px;}
.topbar-logo{color:#fff;font-size:1.5rem;font-weight:900;letter-spacing:1px;}
.topbar-sub{color:rgba(255,255,255,.75);font-size:.85rem;}
.badge{background:rgba(255,255,255,.2);color:#fff;border-radius:99px;padding:5px 14px;font-size:.85rem;font-weight:700;}

/* ── PROGRESS ── */
.prog-wrap{width:100%;background:rgba(255,255,255,.25);border-radius:99px;height:8px;margin-bottom:4px;}
.prog-bar{height:8px;border-radius:99px;background:var(--yellow);transition:width .4s ease;}
.prog-label{color:rgba(255,255,255,.8);font-size:.8rem;text-align:right;margin-bottom:10px;}

/* ── TYPOGRAPHY ── */
.screen-title{color:#fff;font-size:1.3rem;font-weight:800;margin-bottom:16px;text-align:center;}
.section-label{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.8px;color:var(--blue);background:var(--blue-bg);display:inline-block;padding:3px 10px;border-radius:99px;margin-bottom:10px;}
.q-text{font-size:1.2rem;font-weight:700;color:var(--text);line-height:1.55;margin-bottom:20px;text-align:center;}
.q-text-fill{font-weight:400;text-align:left;font-size:1.05rem;}
.open-inline-input{width:70px;padding:6px 4px;border:2px solid var(--blue);border-radius:8px;font-size:1.1rem;text-align:center;font-weight:700;background:#f8f9ff;margin:0 4px;-moz-appearance:textfield;}
.open-inline-input::-webkit-outer-spin-button,.open-inline-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0;}
.hint{display:flex;align-items:center;gap:8px;background:var(--blue-bg);border-radius:10px;padding:9px 13px;margin-bottom:14px;font-size:.88rem;color:#555;}
.hint-icon{font-size:1.2rem;flex-shrink:0;}
label{display:block;font-size:.85rem;font-weight:700;color:var(--muted);margin-bottom:5px;margin-top:14px;}
label:first-child{margin-top:0;}

/* ── FORM CONTROLS ── */
select,input[type=text]{width:100%;padding:13px 14px;border:2px solid #dde;border-radius:10px;font-size:1rem;color:var(--text);background:#fff;appearance:none;outline:none;transition:border .15s;}
select:focus,input[type=text]:focus{border-color:var(--blue);}
.grade-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:6px;}
.grade-btn{padding:14px 8px;background:var(--grey);border:2px solid transparent;border-radius:12px;font-size:1rem;font-weight:700;color:var(--blue);cursor:pointer;text-align:center;transition:all .15s;}
.grade-btn.selected{background:var(--blue);color:#fff;border-color:var(--blue);}

/* ── SOCIOECONOMIC MODULE ── */
.socio-card{padding-bottom:24px;}
.socio-q{margin-bottom:18px;}
.socio-q .sq-label{font-weight:700;font-size:1.05rem;margin-bottom:10px;display:block;color:var(--text);line-height:1.4;}
.socio-q .sq-hint{font-size:.82rem;color:var(--muted);margin-bottom:8px;}
.socio-opt{display:flex;flex-direction:column;gap:8px;}
.socio-opt .so-btn{padding:12px 16px;border:2px solid #dde;border-radius:12px;font-size:.95rem;cursor:pointer;background:#fff;transition:all .15s;color:var(--text);text-align:left;}
.socio-opt .so-btn.selected{background:var(--blue);color:#fff;border-color:var(--blue);}
.socio-opt .so-btn:active{transform:scale(.97);}
.survey-text-input{width:100%;padding:14px 16px;border:2px solid #dde;border-radius:12px;font-size:1rem;color:var(--text);background:#fff;outline:none;transition:border .15s;box-sizing:border-box;}
.survey-text-input:focus{border-color:var(--blue);}
/* ── LIKERT DUAL SCALE ── */
.survey-header{text-align:center;padding:12px 0;}
.survey-header h3{font-size:1.15rem;color:var(--blue);margin:0 0 6px;}
.survey-header p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.4;}
.likert-group{margin-top:10px;}
.likert-group-label{font-size:1.05rem;font-weight:700;color:var(--blue);margin-bottom:8px;margin-top:12px;}
.likert-group-label:first-child{margin-top:0;}
.likert-scale{display:flex;gap:4px;margin-bottom:10px;}
.likert-num{flex:1;min-width:0;aspect-ratio:1;display:flex;align-items:center;justify-content:center;border:2px solid #dde;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer;background:#fff;transition:all .15s;color:var(--text);user-select:none;}
.likert-num.selected{background:var(--blue);color:#fff;border-color:var(--blue);}
.likert-num:active{transform:scale(.93);}
.likert-legend{display:flex;justify-content:space-between;font-size:.7rem;color:var(--muted);margin-top:-6px;margin-bottom:8px;padding:0 2px;}
.socio-q-grouped{margin-top:16px;padding-top:16px;border-top:2px solid #e8e8ec;}

/* ── BUTTONS ── */
.btn{display:block;width:100%;padding:16px;border:none;border-radius:12px;font-size:1.1rem;font-weight:800;cursor:pointer;transition:all .15s;letter-spacing:.3px;margin-top:14px;touch-action:manipulation;}
.btn:active{transform:scale(.97);}
.btn:disabled{opacity:.35;cursor:not-allowed;}
.btn-primary{background:var(--blue);color:#fff;}
.btn-green{background:var(--green);color:#fff;}
.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue);}
.btn-sm{padding:10px 18px;width:auto;display:inline-block;font-size:.9rem;margin-top:0;}

/* ── TRUE / FALSE ── */
.tf-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.tf-btn{padding:28px 12px;border:3px solid transparent;border-radius:14px;font-size:1.3rem;font-weight:900;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:8px;transition:all .15s;touch-action:manipulation;}
.tf-btn .tf-icon{font-size:2.2rem;}
.tf-btn.t{background:var(--green-bg);color:var(--green);}
.tf-btn.f{background:var(--red-bg);color:var(--red);}
.tf-btn.selected.t{background:var(--green);color:#fff;}
.tf-btn.selected.f{background:var(--red);color:#fff;}

/* ── MULTIPLE CHOICE ── */
.mc-list{display:flex;flex-direction:column;gap:10px;}
.mc-btn{padding:15px 18px;background:var(--grey);border:3px solid transparent;border-radius:12px;font-size:1rem;font-weight:600;color:var(--text);cursor:pointer;text-align:left;display:flex;align-items:center;gap:12px;transition:all .15s;touch-action:manipulation;}
.mc-btn .ltr{width:32px;height:32px;background:var(--blue);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:800;flex-shrink:0;}
.mc-btn.selected{border-color:var(--blue);background:#dbeafe;}
.mc-img-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.mc-img-btn{background:var(--grey);border:3px solid transparent;border-radius:14px;padding:14px;cursor:pointer;text-align:center;font-size:.95rem;font-weight:600;color:var(--text);transition:all .15s;}
.mc-img-btn .em{font-size:3rem;display:block;margin-bottom:6px;}
.mc-img-btn.selected{border-color:var(--blue);background:#dbeafe;}

/* ── DRAG & DROP (word bank) ── */
.drag-sentence{font-size:1.15rem;line-height:2.4;color:var(--text);text-align:center;margin-bottom:14px;}
.drag-blank{display:inline-block;min-width:90px;height:36px;border-bottom:3px solid var(--blue);background:var(--blue-bg);border-radius:8px;vertical-align:middle;margin:0 5px;padding:3px 10px;font-weight:700;color:var(--blue);text-align:center;cursor:pointer;}
.drag-blank.filled{background:#dbeafe;border:2px solid var(--blue);border-radius:8px;}
.word-bank{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;background:var(--grey);border-radius:12px;padding:12px;margin-top:10px;}
.drag-word{background:var(--blue);color:#fff;padding:9px 16px;border-radius:99px;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .15s;user-select:none;}
.drag-word.used{opacity:.25;pointer-events:none;}

/* ── REORDER ── */
.reorder-list{display:flex;flex-direction:column;gap:9px;width:100%;}
.reorder-item{background:var(--grey);border:3px solid transparent;border-radius:12px;padding:14px 16px;font-size:1rem;font-weight:600;color:var(--text);cursor:grab;display:flex;align-items:center;gap:12px;user-select:none;transition:all .15s;}
.reorder-item .handle{font-size:1.3rem;color:#bbb;flex-shrink:0;}
.reorder-item.dragging{opacity:.4;border-color:var(--blue);}
.reorder-item.drag-over{border-color:var(--yellow);background:#fff8e1;}

/* ── HOT TEXT ── */
.passage{font-size:1.05rem;line-height:1.9;color:var(--text);background:var(--grey);border-radius:12px;padding:16px;margin-bottom:14px;}
.hot-word{cursor:pointer;border-radius:4px;padding:1px 3px;transition:all .15s;border-bottom:2px solid transparent;}
.hot-word:hover{background:var(--yellow-bg);}
.hot-word.selected{background:var(--yellow);color:#fff;border-radius:6px;border-bottom:2px solid var(--yellow);}
.hot-count{font-size:.85rem;color:var(--muted);text-align:center;margin-top:8px;}

/* ── CLOZE ── */
.cloze-text{font-size:1.1rem;line-height:2.5;color:var(--text);margin-bottom:14px;text-align:center;}
.cloze-blank{display:inline-block;min-width:80px;border-bottom:3px solid var(--blue);margin:0 4px;padding:2px 8px;font-weight:700;color:var(--blue);text-align:center;vertical-align:middle;background:var(--blue-bg);border-radius:6px;cursor:pointer;}
.cloze-blank.filled{background:#dbeafe;}

/* ── INLINE CHOICE (dropdown) ── */
.inline-text{font-size:1.1rem;line-height:2.8;color:var(--text);margin-bottom:10px;}
.inline-select{display:inline-block;padding:4px 10px;border:2px solid var(--blue);border-radius:8px;font-size:1rem;font-weight:700;color:var(--blue);background:#fff;cursor:pointer;vertical-align:middle;appearance:none;min-width:100px;}

/* ── NUMERIC ENTRY ── */
.num-display{font-size:2.5rem;font-weight:900;color:var(--blue);text-align:center;background:var(--blue-bg);border-radius:14px;padding:18px;margin-bottom:16px;min-height:76px;letter-spacing:2px;}
.num-display.has-value{background:#dbeafe;}
.numpad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.num-btn{padding:18px;background:var(--grey2);border:none;border-radius:12px;font-size:1.4rem;font-weight:700;color:var(--text);cursor:pointer;transition:all .15s;touch-action:manipulation;}
.num-btn:active{background:var(--blue);color:#fff;transform:scale(.95);}
.num-btn.del{background:var(--red-bg);color:var(--red);}
.num-btn.ok{background:var(--green);color:#fff;grid-column:span 2;}

/* ── MATCHING ── */
.match-wrap{position:relative;width:100%;}
.match-grid{display:grid;grid-template-columns:1fr 40px 1fr;align-items:start;gap:0;margin-top:4px;}
.match-col{display:flex;flex-direction:column;gap:8px;}
.match-col-title{font-size:.78rem;font-weight:800;text-transform:uppercase;color:var(--muted);text-align:center;margin-bottom:4px;}
.match-item{background:var(--grey);border:3px solid transparent;border-radius:12px;padding:13px 10px;font-size:.95rem;font-weight:600;text-align:center;cursor:pointer;color:var(--text);transition:all .15s;min-height:52px;display:flex;align-items:center;justify-content:center;}
.match-item.active{background:var(--blue);color:#fff;border-color:var(--blue);}
.match-item.matched{border-color:var(--green);background:var(--green-bg);color:var(--green);font-weight:800;}
.match-item.matched-active{border-color:var(--red);background:var(--red-bg);color:var(--red);}
.match-svg{overflow:visible;width:40px;}

/* ── ENCOURAGEMENT OVERLAY ── */
.feedback{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:200;opacity:0;pointer-events:none;transition:opacity .2s;}
.feedback.show{opacity:1;pointer-events:all;}
.feedback.cheer{background:rgba(26,82,118,.93);}
.feedback-icon{font-size:5rem;}
.feedback-title{color:#fff;font-size:2rem;font-weight:900;margin-top:10px;text-align:center;padding:0 24px;}
.feedback-detail{color:rgba(255,255,255,.75);font-size:1rem;margin-top:6px;text-align:center;padding:0 28px;}

/* ── RESULTS ── */
.result-score{font-size:3.5rem;font-weight:900;color:var(--blue);text-align:center;margin:12px 0 2px;}
.result-sub{text-align:center;color:var(--muted);font-size:.95rem;margin-bottom:16px;}
.result-stars{font-size:2.2rem;text-align:center;margin-bottom:14px;}
.result-row{display:flex;align-items:center;justify-content:space-between;padding:9px 13px;border-radius:10px;margin-bottom:7px;background:var(--grey);font-size:.9rem;}
.sync-status{text-align:center;margin-top:10px;font-size:.85rem;color:var(--muted);}

/* ── TEACHER PANEL ── */
.results-table{width:100%;border-collapse:collapse;font-size:.85rem;margin-top:10px;}
.results-table th{background:var(--blue);color:#fff;padding:8px 10px;text-align:left;font-size:.8rem;}
.results-table td{padding:8px 10px;border-bottom:1px solid var(--grey2);}
.results-table tr:last-child td{border-bottom:none;}
/* Panel tabs */
.panel-tabs{display:flex;gap:6px;max-width:560px;width:100%;margin:0 auto 12px auto;}
.ptab{flex:1;padding:10px 6px;background:var(--grey2);border:none;border-radius:10px;font-weight:700;font-size:.88rem;cursor:pointer;color:var(--muted);transition:all .15s;}
.ptab.active{background:var(--blue);color:#fff;}
.panel-pane{width:100%;}
/* Filter bar */
.filter-bar{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap;}
.filter-bar select{flex:1;min-width:100px;padding:8px 10px;border:1.5px solid var(--grey2);border-radius:8px;font-size:.85rem;background:#fff;}
/* Question admin */
.q-admin-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--grey2);}
.q-admin-item:last-child{border-bottom:none;}
.q-admin-label{flex:1;font-size:.88rem;}
.q-admin-type{font-size:.75rem;color:var(--muted);background:var(--grey2);padding:2px 7px;border-radius:20px;}
.q-toggle{position:relative;display:inline-block;width:40px;height:22px;}
.q-toggle input{opacity:0;width:0;height:0;}
.q-toggle-slider{position:absolute;cursor:pointer;inset:0;background:#ccc;border-radius:22px;transition:.2s;}
.q-toggle-slider:before{position:absolute;content:"";height:16px;width:16px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:.2s;}
.q-toggle input:checked+.q-toggle-slider{background:var(--green);}
.q-toggle input:checked+.q-toggle-slider:before{transform:translateX(18px);}
/* Kiosk fullscreen button */
.kiosk-btn{background:var(--grey2);color:var(--text);border:2px solid var(--grey2);border-radius:10px;padding:11px 20px;font-size:.9rem;font-weight:700;cursor:pointer;width:100%;text-align:center;margin-bottom:8px;}
.kiosk-btn:active{background:#dde;}

/* ── SKIP / REVIEW ── */
.btn-skip{background:var(--grey2);color:var(--muted);border:2px solid var(--grey2);flex:0 0 auto;width:auto;padding:16px 18px;white-space:nowrap;font-size:1rem;font-weight:800;border-radius:12px;cursor:pointer;transition:all .15s;touch-action:manipulation;}
.btn-skip:active{background:#dde;}
.review-banner{background:var(--yellow-bg);border:2px solid var(--yellow);border-radius:10px;padding:9px 14px;text-align:center;font-size:.88rem;font-weight:700;color:var(--yellow);margin-bottom:8px;width:100%;max-width:560px;}

/* ── PIN OVERLAY ── */
#pinOverlay{position:fixed;inset:0;background:rgba(26,82,118,.97);z-index:300;display:none;flex-direction:column;align-items:center;justify-content:center;padding:16px;}
#pinOverlay.show{display:flex;}
.pin-display{font-size:2.8rem;font-weight:900;letter-spacing:16px;color:var(--blue);text-align:center;min-height:64px;padding:10px 0;}
.pin-display.shake{animation:shake .35s;}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-8px)}60%{transform:translateX(8px)}80%{transform:translateX(-4px)}}

/* ── Passages and question images ── */
.q-passage{background:#f8f6ff;border-left:4px solid #6c3483;border-radius:8px;padding:14px 16px;margin-bottom:16px;max-height:300px;overflow-y:auto;font-size:.92rem;line-height:1.6;}
.q-passage-figure{background:#f8f6ff;border-left:4px solid #6c3483;border-radius:8px;padding:14px 16px;margin-bottom:16px;font-size:.92rem;line-height:1.6;}
.q-passage-title{font-weight:700;font-size:1rem;margin-bottom:8px;color:#4a235a;}
.q-passage-text{color:#333;white-space:pre-line;}
.q-passage-img{max-width:100%;border-radius:6px;margin:8px 0;}
.q-passage-table{width:100%;border-collapse:collapse;margin:10px 0;font-size:.85rem;}
.q-passage-table th,.q-passage-table td{border:1px solid #ccc;padding:6px 8px;text-align:left;}
.q-passage-table th{background:#e8daef;font-weight:700;}
.q-stem-images{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0;justify-content:center;}
.q-stem-img{max-width:48%;max-height:200px;border-radius:6px;border:1px solid #dde;object-fit:contain;}
.q-stem-images .q-stem-img:only-child{max-width:100%;max-height:500px;}
.q-stem-img-inline{display:inline-block;max-width:80px;max-height:80px;border-radius:6px;border:1px solid #dde;object-fit:contain;margin:2px 4px;vertical-align:middle;}
.q-stem-img-block{display:block;max-width:100%;max-height:500px;border-radius:6px;border:1px solid #dde;object-fit:contain;margin:8px auto;}
.val-box{display:inline-block;border:1.5px solid #333;padding:4px 10px;margin:3px 2px;border-radius:4px;font-size:0.92em;background:#fff;}
.big-num{font-size:1.4em;font-weight:700;}
.mc-opt-content{display:flex;flex-direction:column;gap:4px;flex:1;align-items:flex-start;}
.mc-opt-img{max-width:100%;max-height:250px;border-radius:4px;margin-top:4px;image-rendering:auto;width:auto;height:auto;object-fit:contain;}
.mc-btn{display:flex;align-items:flex-start;text-align:left;}
</style>