:root {
  --bg:#f5f7fb;
  --panel:#ffffff;
  --ink:#172033;
  --muted:#6d778a;
  --line:#dfe5ef;
  --primary:#5b5ce2;
  --primary2:#7c5cff;
  --good:#1f9d63;
  --warn:#df8d20;
  --danger:#d54b55;
  --data:#3e86f5;
  --design:#9d55d8;
  --blocks:#e58a2d;
  --test:#20a06a;
  --shadow:0 12px 34px rgba(26,38,75,.10);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:30}
.brand{display:flex;gap:12px;align-items:center;font-weight:800;font-size:19px}
.brandmark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary2));color:white;box-shadow:0 6px 16px rgba(91,92,226,.28)}
.top-actions{display:flex;gap:10px;align-items:center}
.pill{border-radius:999px;padding:8px 12px;background:#eef0ff;color:#4a49be;font-size:13px;font-weight:700}
.btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 14px;font-weight:700;color:var(--ink)}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:white}
.btn.good{background:var(--good);border-color:var(--good);color:white}
.btn.ghost{background:transparent}
.btn.small{padding:7px 10px;font-size:13px}
.landing{min-height:100vh;background:radial-gradient(circle at 20% 10%,#e9eaff 0,transparent 35%),radial-gradient(circle at 85% 80%,#e7fff3 0,transparent 35%),#f8f9fc;display:grid;place-items:center;padding:28px}
.hero{max-width:980px;width:100%;display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:center}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:.98;margin:0 0 18px;letter-spacing:-2.5px}
.hero p{font-size:19px;line-height:1.55;color:var(--muted);max-width:680px}
.hero-card{background:rgba(255,255,255,.9);border:1px solid #e7e9f3;border-radius:26px;padding:24px;box-shadow:var(--shadow)}
.role-grid{display:grid;gap:14px}
.role-card{border:1px solid var(--line);background:white;border-radius:18px;padding:20px;text-align:left;display:flex;gap:14px;align-items:flex-start;transition:.15s}
.role-card:hover{border-color:#b8baf5;box-shadow:0 8px 24px rgba(91,92,226,.11);transform:translateY(-2px)}
.role-icon{font-size:30px}
.role-card strong{display:block;font-size:18px;margin-bottom:4px}.role-card span{color:var(--muted);font-size:14px}
.shell{min-height:100vh}
.page{padding:24px;max-width:1280px;margin:0 auto}
.welcome{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:12px 0 22px}.welcome h1{margin:0 0 5px;font-size:30px}.welcome p{margin:0;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 5px 20px rgba(22,31,59,.04)}
.card h3{margin:0 0 8px}.muted{color:var(--muted)}
.progress{height:9px;background:#edf0f6;border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#8f66ff);border-radius:999px}
.project-card{display:flex;flex-direction:column;gap:12px}.project-meta{display:flex;gap:8px;flex-wrap:wrap}.tag{font-size:12px;border-radius:999px;padding:5px 9px;background:#f1f3f8;color:#596276;font-weight:700}
.class-table{width:100%;border-collapse:collapse;margin-top:12px}.class-table th,.class-table td{padding:11px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.class-table th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.status-dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px}.status-dot.good{background:var(--good)}.status-dot.warn{background:var(--warn)}.status-dot.muted{background:#a8afbd}
.builder{min-height:100vh;background:#f5f7fb}
.builder-head{background:white;border-bottom:1px solid var(--line);padding:12px 18px;display:flex;align-items:center;gap:14px;position:sticky;top:0;z-index:40}.builder-head .project-title{font-weight:800;flex:1}.save-state{font-size:13px;color:var(--muted)}
.step-tabs{display:flex;background:#fff;border-bottom:1px solid var(--line);padding:0 18px;position:sticky;top:63px;z-index:35}.step-tab{padding:14px 20px;border:0;background:transparent;border-bottom:3px solid transparent;font-weight:800;color:#667085}.step-tab.active{color:var(--ink)}.step-tab[data-tab="data"].active{border-color:var(--data)}.step-tab[data-tab="design"].active{border-color:var(--design)}.step-tab[data-tab="blocks"].active{border-color:var(--blocks)}.step-tab[data-tab="test"].active{border-color:var(--test)}
.builder-body{padding:18px;min-height:calc(100vh - 120px)}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.section-head h2{margin:0;font-size:23px}.section-head p{margin:4px 0 0;color:var(--muted);font-size:14px}
.data-wrap{background:white;border:1px solid var(--line);border-radius:16px;overflow:auto;box-shadow:0 4px 16px rgba(22,31,59,.04)}
.data-table{width:100%;border-collapse:collapse;min-width:760px}.data-table th,.data-table td{border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:8px;vertical-align:middle}.data-table th{background:#f8f9fc;text-align:left;font-size:12px;color:#596276;white-space:nowrap}.data-table input{width:100%;border:1px solid transparent;background:transparent;padding:8px;border-radius:7px}.data-table input:focus{outline:none;border-color:#aeb5ff;background:#fff}.data-type{display:block;font-size:10px;color:#9098a8;margin-top:3px}.row-num{width:44px;text-align:center;color:#8a93a4;font-size:12px;background:#fafbfc}.icon-btn{border:0;background:transparent;color:#8b93a2;font-size:16px;padding:6px}.icon-btn:hover{color:var(--danger)}
.design-grid{display:grid;grid-template-columns:210px minmax(350px,1fr) 250px;gap:16px;min-height:620px}.toolbox,.properties,.workspace-panel{background:white;border:1px solid var(--line);border-radius:16px;box-shadow:0 4px 16px rgba(22,31,59,.04)}.toolbox,.properties{padding:14px}.toolbox h3,.properties h3{margin:4px 0 12px;font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:#657085}.component-btn{width:100%;display:flex;gap:10px;align-items:center;border:1px solid var(--line);background:white;border-radius:11px;padding:10px;margin-bottom:8px;text-align:left}.component-btn:hover{border-color:#c8a9ee;background:#fcf9ff}.component-btn span:first-child{font-size:20px}.workspace-panel{padding:12px;display:flex;justify-content:center;align-items:flex-start;background:linear-gradient(45deg,#f8f9fc 25%,transparent 25%),linear-gradient(-45deg,#f8f9fc 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#f8f9fc 75%),linear-gradient(-45deg,transparent 75%,#f8f9fc 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0}
.device-wrap{text-align:center}.device-switch{display:inline-flex;background:white;border:1px solid var(--line);border-radius:10px;padding:3px;margin-bottom:10px}.device-switch button{border:0;background:transparent;padding:7px 9px;border-radius:7px;font-size:12px}.device-switch button.active{background:#eff1ff;color:#4d4ac4;font-weight:800}
.phone{width:340px;height:650px;background:#fff;border:10px solid #202534;border-radius:38px;box-shadow:0 18px 45px rgba(20,27,45,.22);position:relative;overflow:hidden}.phone::before{content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);width:95px;height:22px;border-radius:20px;background:#202534;z-index:10}.screen{position:absolute;inset:0;background:#fff;overflow:hidden;padding-top:36px}.screen-component{position:absolute;min-width:50px;min-height:32px;border:1px dashed transparent;user-select:none;touch-action:none}.screen-component.selected{border-color:#7759db;box-shadow:0 0 0 2px rgba(119,89,219,.12)}.screen-component .label{padding:6px 8px}.screen-component button{width:100%;height:100%;border:0;border-radius:9px;background:#5b5ce2;color:white;font-weight:700;padding:9px 12px}.screen-component img{width:100%;height:100%;display:block;object-fit:cover;border-radius:9px}.screen-component input{width:100%;height:100%;border:1px solid #ccd2dd;border-radius:8px;padding:8px;background:white}.screen-component .listbox{border:1px solid #d7dce5;border-radius:9px;overflow:hidden;background:#fff}.screen-component .listbox div{padding:8px;border-bottom:1px solid #edf0f4;font-size:12px}.screen-component .listbox div:last-child{border:0}
.prop-group{margin-bottom:13px}.prop-group label{display:block;font-size:11px;text-transform:uppercase;color:#8991a1;font-weight:800;margin-bottom:5px}.prop-group input,.prop-group select{width:100%;border:1px solid var(--line);border-radius:8px;padding:8px}.empty-note{border:1px dashed #cfd5df;border-radius:12px;padding:16px;text-align:center;color:var(--muted);font-size:13px}
.blocks-grid{display:grid;grid-template-columns:230px 1fr 310px;gap:16px;min-height:620px}.block-palette,.block-canvas,.code-panel{background:white;border:1px solid var(--line);border-radius:16px;padding:14px}.block-palette h3,.code-panel h3{margin:4px 0 12px;font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:#657085}.palette-group{margin-bottom:15px}.palette-group strong{display:block;font-size:11px;color:#8991a1;text-transform:uppercase;margin-bottom:6px}.palette-block{width:100%;border:0;border-radius:8px;padding:9px 10px;color:white;font-weight:700;text-align:left;margin-bottom:6px;box-shadow:inset 0 -2px 0 rgba(0,0,0,.13)}.palette-block.event{background:#e3a429}.palette-block.data{background:#4089e8}.palette-block.screenb{background:#9a62d4}.palette-block.logic{background:#4aaf76}
.block-canvas{background:#fafbfe;overflow:auto}.block-canvas .hint{color:#9aa2b1;font-size:13px;text-align:center;padding:30px}.program-block{color:white;border-radius:8px;padding:9px 12px;margin:7px 0;box-shadow:inset 0 -2px 0 rgba(0,0,0,.12);display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:13px;font-weight:700}.program-block.event{background:#e3a429}.program-block.data{background:#4089e8;margin-left:22px}.program-block.screenb{background:#9a62d4;margin-left:22px}.program-block.logic{background:#4aaf76;margin-left:22px}.program-block select{border:0;border-radius:5px;padding:4px 5px;background:rgba(255,255,255,.95);color:#1f2937;max-width:145px}.program-block .remove-block{margin-left:auto;border:0;background:rgba(0,0,0,.15);color:white;border-radius:5px;padding:2px 6px}.codebox{background:#172033;color:#e8edf7;border-radius:12px;padding:13px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;line-height:1.55;white-space:pre-wrap;min-height:340px;overflow:auto}.code-toggle{display:flex;gap:5px;margin-bottom:8px}.code-toggle button{border:1px solid var(--line);background:white;border-radius:7px;padding:6px 8px;font-size:12px}.code-toggle button.active{background:#eef0ff;color:#4a49be;border-color:#c9caff;font-weight:800}
.test-grid{display:grid;grid-template-columns:1fr 350px;gap:18px}.test-stage{min-height:680px;display:grid;place-items:start center;background:white;border:1px solid var(--line);border-radius:16px;padding:20px}.test-side{display:flex;flex-direction:column;gap:12px}.debug{background:#172033;color:white;border-radius:16px;padding:14px;min-height:300px}.debug h3{margin:0 0 10px;font-size:14px}.log-line{font-size:12px;line-height:1.5;padding:4px 0;border-bottom:1px solid rgba(255,255,255,.08)}.log-line.good{color:#a7f3d0}.log-line.warn{color:#fde68a}.record-card{background:white;border:1px solid var(--line);border-radius:16px;padding:14px}.record-card h3{margin:0 0 8px;font-size:14px}.record-grid{display:grid;grid-template-columns:auto 1fr;gap:6px 10px;font-size:12px}.record-grid dt{color:#8a93a4}.record-grid dd{margin:0;font-weight:600;overflow-wrap:anywhere}
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.45);display:grid;place-items:center;z-index:100;padding:20px}.modal{width:min(460px,100%);background:white;border-radius:18px;padding:20px;box-shadow:0 24px 70px rgba(15,23,42,.28)}.modal h3{margin:0 0 14px}.modal .field{margin-bottom:12px}.modal label{display:block;font-size:12px;font-weight:800;color:#667085;margin-bottom:5px}.modal input,.modal select{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.notice{background:#eef8ff;border:1px solid #cce8ff;color:#245d81;border-radius:12px;padding:12px 14px;font-size:13px;margin-bottom:14px}
@media(max-width:980px){.hero{grid-template-columns:1fr}.design-grid,.blocks-grid,.test-grid{grid-template-columns:1fr}.toolbox{order:1}.workspace-panel{order:2}.properties{order:3}.block-palette{order:1}.block-canvas{order:2}.code-panel{order:3}.phone{width:320px}.step-tabs{overflow:auto}.step-tab{white-space:nowrap}}

/* V1.1 classroom additions */
.assignment-card{position:relative;overflow:hidden}.assignment-card::after{content:"";position:absolute;right:-30px;top:-30px;width:100px;height:100px;border-radius:50%;background:#f1efff;z-index:0}.assignment-card>*{position:relative;z-index:1}
.tag.tag-good{background:#eaf9f1;color:#177a4c}.mini-progress{font-size:12px;font-weight:800;background:#eef8f2;color:#1d7f52;padding:6px 9px;border-radius:999px}.mini-checks{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}.connection-note{font-size:11px;color:var(--muted);background:#f8f7ff;border:1px solid #e5e1ff;padding:8px;border-radius:8px;margin-bottom:10px}.btn.connect{background:#f2efff;border-color:#d7d0ff;color:#5144b8}
.block-move{margin-left:auto;display:inline-flex;gap:3px}.move-block{border:0;background:rgba(255,255,255,.18);color:white;border-radius:5px;padding:2px 5px;font-size:11px}.program-block .block-move + .remove-block{margin-left:0}
.phone.device-large{width:390px;height:720px}.phone.device-tablet{width:520px;height:700px;border-radius:30px}.phone.device-tablet::before{width:75px;height:14px}.phone.device-tablet .screen{padding-top:28px}
@media(max-width:720px){.builder-head{flex-wrap:wrap}.mini-progress{order:3}.phone.device-tablet{width:340px;height:650px}.phone.device-large{width:330px;height:650px}.class-table{display:block;overflow:auto}.section-head{align-items:flex-start;flex-direction:column}.welcome{align-items:flex-start;flex-direction:column}}
.image-cell{display:flex;align-items:center;gap:8px;min-width:150px}.image-cell img{width:58px;height:42px;object-fit:cover;border-radius:7px;border:1px solid var(--line);background:#f7f8fb}.data-table select{width:100%;border:1px solid transparent;background:transparent;padding:8px;border-radius:7px}.data-table select:focus{outline:none;border-color:#aeb5ff;background:#fff}.image-choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0 16px}.image-choice{border:1px solid var(--line);background:white;border-radius:12px;padding:12px 8px;font-weight:700;color:var(--ink)}.image-choice span{display:block;font-size:28px;margin-bottom:4px}.image-choice:hover{border-color:#bbb8f5;background:#f8f7ff}

/* V1.2 managed media + publish */
.media-modal{width:min(860px,96vw);max-height:88vh;overflow:auto}.media-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.media-modal-head h3{margin-bottom:4px}.media-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:12px 0}.media-tabs button{border:0;background:transparent;padding:10px 12px;font-weight:800;color:var(--muted);border-bottom:3px solid transparent}.media-tabs button.active{color:#5144b8;border-bottom-color:#6c5ce7}.media-toolbar{display:flex;gap:8px;align-items:center;margin-bottom:12px}.media-toolbar input{flex:1;border:1px solid var(--line);border-radius:9px;padding:10px}.media-grid{display:grid;grid-template-columns:repeat(4,minmax(120px,1fr));gap:10px}.media-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px;text-align:left;min-width:0}.media-card:hover,.media-card.selected{border-color:#8b7de8;box-shadow:0 0 0 2px rgba(108,92,231,.12)}.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px;background:#f5f6fa}.media-card span{display:block;font-weight:800;font-size:12px;margin-top:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.media-card small{display:block;color:var(--muted);font-size:10px;margin-top:2px}.media-manage-grid{display:grid;gap:8px}.manage-image{display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:10px;border:1px solid var(--line);border-radius:11px;padding:8px}.manage-image img{width:64px;height:50px;object-fit:cover;border-radius:8px;background:#f5f6fa}.manage-image strong,.manage-image small{display:block}.manage-image small{font-size:11px;color:var(--muted);margin-top:3px}.notice.warning{background:#fff8e7;border-color:#f3dda3;color:#7a5912}.btn.disabled,.btn:disabled{opacity:.48;cursor:not-allowed}.property-image-preview{border:1px solid var(--line);border-radius:10px;padding:6px;background:#f8f9fc;margin-bottom:8px}.property-image-preview img{display:block;width:100%;height:120px;object-fit:cover;border-radius:7px}.publish-grid{display:grid;grid-template-columns:minmax(320px,1fr) minmax(320px,1fr);gap:16px}.publish-icon{width:116px;height:116px;border-radius:25px;padding:7px;background:#f3f4f8;margin-bottom:16px;box-shadow:0 8px 20px rgba(30,40,70,.12)}.publish-icon img{width:100%;height:100%;object-fit:cover;border-radius:20px}.publish-phone{min-height:250px;border-radius:22px;background:linear-gradient(145deg,#e8ecff,#f8f0ff);display:grid;place-items:center;margin:14px 0}.home-icon{width:100px;text-align:center;font-size:12px;font-weight:700;color:#283046}.home-icon img{width:72px;height:72px;object-fit:cover;border-radius:17px;display:block;margin:0 auto 7px;box-shadow:0 6px 14px rgba(28,35,60,.18)}
@media(max-width:760px){.media-grid{grid-template-columns:repeat(2,1fr)}.media-toolbar{align-items:stretch;flex-direction:column}.publish-grid{grid-template-columns:1fr}}

/* V1.3 real classroom accounts */
.auth-card{width:min(620px,92vw);margin:auto}.uid-box{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:white;border:1px solid var(--line);border-radius:8px;padding:9px;margin-top:7px;overflow-wrap:anywhere;color:var(--ink)}
.user-chip{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:750;color:#475467;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 9px 4px 5px}.user-chip img{width:25px;height:25px;border-radius:50%;object-fit:cover}
.class-switcher{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px}.class-chip{border:1px solid var(--line);background:white;border-radius:999px;padding:8px 12px;font-weight:800;color:#667085}.class-chip.active{background:#eeecff;color:#4f46b8;border-color:#c9c5ff}
.join-code{letter-spacing:.14em;margin:5px 0 11px}.empty-class-card{text-align:center;padding:38px}.big-emoji{font-size:48px;margin-bottom:6px}.code-input{text-transform:uppercase;letter-spacing:.18em;font-size:22px;font-weight:900;text-align:center}.cloud-note{font-size:11px;color:#667085}
@media(max-width:720px){.user-chip{display:none}.top-actions{gap:5px}.role-grid{grid-template-columns:1fr}.empty-class-card{padding:24px}}

/* V1.4 blank-canvas pupil tutorial */
.tutorial-panel{margin:16px 18px 0;background:linear-gradient(135deg,#f7f5ff,#f1f8ff);border:1px solid #d8d5ff;border-radius:16px;padding:16px 18px;box-shadow:0 6px 20px rgba(91,92,226,.07)}
.tutorial-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.tutorial-top h3{margin:4px 0 0;font-size:18px}.tutorial-top>strong{background:white;border:1px solid #d8d5ff;border-radius:999px;padding:6px 10px;color:#4f46b8}.tutorial-kicker{font-size:11px;font-weight:900;letter-spacing:.09em;color:#5b5ce2}.tutorial-panel p{margin:10px 0;color:#4b5565;line-height:1.45}.tutorial-progress{height:8px;background:#e4e5f2;border-radius:999px;overflow:hidden;margin:12px 0}.tutorial-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#7e8bff);border-radius:999px}.tutorial-tip{background:#fff;border:1px solid #e1e4ef;border-radius:10px;padding:10px 12px;margin:10px 0 12px;color:#586174;font-size:13px}.tutorial-all{margin-top:12px}.tutorial-all summary{cursor:pointer;font-size:13px;font-weight:800;color:#525bb4}.tutorial-all ol{margin:10px 0 0;padding-left:22px;color:#667085;font-size:13px;line-height:1.8}.tutorial-all li.done{color:var(--good);font-weight:700}
.project-setup-grid{display:grid;grid-template-columns:repeat(2,minmax(220px,1fr));gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:12px}.project-setup-grid .field{margin:0}.project-setup-grid label{display:block;font-size:12px;font-weight:800;color:#596276;margin-bottom:6px}.project-setup-grid input{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 11px;background:#fff}.project-setup-grid input:focus{outline:none;border-color:#aeb5ff;box-shadow:0 0 0 3px rgba(91,92,226,.08)}
.blank-builder-state{background:#fff;border:2px dashed #cfd5df;border-radius:16px;padding:36px;text-align:center;color:#596276}.blank-builder-state h3{margin:8px 0}.blank-builder-state p{max-width:560px;margin:0 auto;line-height:1.5}.blank-project-card{border-style:dashed;border-width:2px;background:linear-gradient(145deg,#fff,#fbfbff)}
@media(max-width:760px){.tutorial-panel{margin:12px 10px 0}.project-setup-grid{grid-template-columns:1fr}.builder-head{flex-wrap:wrap}.tutorial-toggle{margin-left:auto}}

/* V1.5 real Blockly + Android publish */
.blockly-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;min-height:650px}.blockly-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;min-width:0}.blockly-help{padding:11px 14px;border-bottom:1px solid var(--line);background:#f8f8ff;color:#59637a;font-size:13px}.blockly-help b{color:#29334d}.blockly-workspace{height:610px;width:100%;position:relative}.blockly-code{height:650px;overflow:auto}.blockly-code .codebox{min-height:330px;white-space:pre-wrap}.blocklyToolboxDiv{background:#f7f8fc!important;border-right:1px solid #e1e4ed!important}.blocklyTreeRow{height:34px!important;line-height:34px!important;margin:3px 7px!important;border-radius:8px!important}.blocklyTreeLabel{font-family:Inter,ui-sans-serif,system-ui,sans-serif!important;font-weight:800!important}.blocklyFlyoutBackground{fill:#f3f5fa!important;fill-opacity:.98!important}.publish-main-btn{width:100%;margin-top:18px;padding:12px}.publish-result{display:grid;justify-items:center;gap:12px}.qr-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;min-width:216px;min-height:216px;display:grid;place-items:center}.qr-box img,.qr-box canvas{display:block;max-width:190px}.share-url{width:100%;padding:9px 10px;border:1px solid var(--line);background:#f8f9fc;border-radius:9px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;overflow-wrap:anywhere;color:#525d75}.publish-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.notice.goodish{background:#ecfbf3;border-color:#bde8cf;color:#286343}.pill{white-space:nowrap}@media(max-width:1050px){.blockly-layout{grid-template-columns:1fr}.blockly-code{height:auto}.blockly-workspace{height:560px}}@media(max-width:600px){.blockly-workspace{height:500px}.blockly-layout{gap:10px}}

/* V1.6 pages + database list */
.page-strip{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:0 0 14px;padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:14px;overflow-x:auto}.page-tabs{display:flex;gap:8px;min-width:0}.page-tab{border:1px solid var(--line);background:#f8f9fc;border-radius:10px;padding:8px 12px;min-width:96px;text-align:left;cursor:pointer;color:#263047}.page-tab span{display:block;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:130px}.page-tab small{display:block;color:#8a93a4;margin-top:2px}.page-tab.active{background:#eeecff;border-color:#8c79f2;color:#4c3fbd}.page-actions{display:flex;gap:6px;white-space:nowrap}.danger-text{color:var(--danger)!important}.master-detail-note{margin-bottom:14px}.prop-section-title{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:#7b8496;font-weight:900;margin:16px 0 8px}.list-props{border-top:1px solid var(--line);margin-top:12px;padding-top:2px}
.screen-component .database-list{height:100%;width:100%;overflow-y:auto;overflow-x:hidden;background:#fff;border:1px solid #d7dce5;border-radius:10px;overscroll-behavior:contain;scrollbar-width:thin}.data-list-row{min-height:58px;display:flex;align-items:center;gap:10px;padding:8px 9px;border-bottom:1px solid #edf0f4;background:#fff;cursor:pointer}.data-list-row:last-child{border-bottom:0}.data-list-row:hover{background:#fafaff}.list-row-image{width:46px;height:46px;border-radius:50%;overflow:hidden;background:#f0f2f6;display:grid;place-items:center;flex:0 0 auto}.layout-image-only .list-row-image{width:100%;height:105px;border-radius:7px}.list-row-image img{width:100%;height:100%;object-fit:cover}.list-row-copy{min-width:0;flex:1;display:flex;flex-direction:column;gap:3px}.list-row-copy strong,.list-row-copy span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.list-row-copy strong{font-size:13px;color:#20283b}.list-row-copy span{font-size:11px;color:#8790a1}.list-row-arrow{font-size:24px;color:#a4aabd;line-height:1}.list-empty{padding:18px 10px;text-align:center;color:#929aaa;font-size:12px}.screen-component.selected .database-list{outline:2px solid rgba(119,89,219,.12)}
@media(max-width:800px){.page-strip{align-items:stretch;flex-direction:column}.page-actions{justify-content:flex-end}}


/* V1.7 multi-app library */
.app-library{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.app-library-card{min-height:225px}.app-card-top{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}.app-card-top h3{font-size:21px;margin:9px 0 2px}.mini-app-icon{width:46px;height:46px;border-radius:13px;background:#f1efff;display:grid;place-items:center;font-size:23px;flex:0 0 auto}.app-task-name{font-size:13px;color:var(--muted);margin:3px 0 0}.app-card-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:auto}.danger-soft{color:#a13232;border-color:#efcaca;background:#fff8f8}.danger-soft:hover{background:#fff0f0}.app-count{font-size:13px;font-weight:750;color:#596276;background:#fff;border:1px solid var(--line);padding:8px 11px;border-radius:999px}.empty-app-library{text-align:center;padding:34px}.app-section-gap{margin-top:28px}
@media(max-width:720px){.app-count{border-radius:12px}.app-card-actions .btn{flex:1 1 auto}}

/* V1.8 teacher-controlled block support */
.member-support-select{min-width:190px;border:1px solid var(--line);border-radius:8px;padding:7px 8px;background:#fff;font-size:12px;color:#344054}.block-tutorial-card{background:linear-gradient(135deg,#fffaf0,#f7f5ff);border:1px solid #e6d9b9;border-radius:15px;padding:14px 16px;margin-bottom:14px}.block-tutorial-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.block-tutorial-head h3{margin:8px 0 6px;font-size:18px}.block-help-tabs{display:flex;gap:7px;flex-wrap:wrap;margin:8px 0 10px}.block-tutorial-body{font-size:13px;color:#4b5565;line-height:1.5}.block-tutorial-body ol{margin:6px 0 0;padding-left:22px}.block-tutorial-body li{margin:5px 0}


/* V1.9 resize, styling, page-scoped Blockly and richer data types */
.resize-handle{position:absolute;width:12px;height:12px;border:2px solid #fff;background:#6b55e8;border-radius:3px;z-index:30;box-shadow:0 1px 4px rgba(40,30,100,.25);touch-action:none}.resize-nw{left:-7px;top:-7px;cursor:nwse-resize}.resize-ne{right:-7px;top:-7px;cursor:nesw-resize}.resize-sw{left:-7px;bottom:-7px;cursor:nesw-resize}.resize-se{right:-7px;bottom:-7px;cursor:nwse-resize}.screen-component.selected{overflow:visible}.colour-grid{display:grid;grid-template-columns:1fr 54px;align-items:center;gap:7px 10px}.colour-grid label{margin:0}.colour-grid input[type=color],.colour-row input[type=color]{width:54px;height:38px;padding:3px;cursor:pointer}.colour-row{display:flex;align-items:center;gap:10px}.colour-row span{font-family:ui-monospace,monospace;font-size:11px;color:var(--muted)}.rating-cell{min-width:245px}.rating-stars{display:flex;gap:1px;white-space:nowrap}.rating-star{border:0;background:transparent;padding:1px;color:#c9ced8;font-size:20px;line-height:1;cursor:pointer}.rating-star.on{color:#f3b51b}.rating-cell small{display:block;margin-top:4px;color:var(--muted)}.blocks-page-strip{margin-top:-2px}.blocks-page-strip .page-tab{min-width:110px}.screen-component .label{width:100%;height:100%;border-radius:7px;overflow:hidden}.screen-component input{font:inherit}.data-table input[type=url]{min-width:250px}

/* V1.10 interaction fixes */
.move-handle{position:absolute;left:50%;top:-27px;transform:translateX(-50%);width:30px;height:22px;border:2px solid #fff;border-radius:8px;background:#6b55e8;color:#fff;display:grid;place-items:center;font-size:15px;font-weight:900;line-height:1;z-index:31;cursor:grab;box-shadow:0 2px 7px rgba(40,30,100,.25);touch-action:none;user-select:none}.move-handle:active{cursor:grabbing}.screen-component.selected{z-index:20}

/* V1.12 list transparency */
.screen-component .database-list.transparent-list{background:transparent}
.screen-component .database-list.transparent-list .data-list-row{background:transparent}
.screen-component .database-list.transparent-list .data-list-row:hover{background:rgba(255,255,255,.10)}
.screen-component .database-list.transparent-list .list-row-image{background:rgba(255,255,255,.18)}
.check-row small{display:block;color:var(--muted);font-weight:500;margin-top:3px}

/* V1.13: one explicit list-background property shared by Design and Test. */
.screen-component .listbox.database-list.transparent-list,
.screen-component .database-list.transparent-list{background:transparent !important;}
.screen-component .database-list.transparent-list .data-list-row{background:transparent !important;}
.screen-component .database-list.transparent-list .data-list-row:hover{background:rgba(255,255,255,.10) !important;}
.prop-help{display:block;margin-top:6px;color:#778196;font-size:12px;line-height:1.35;}

/* V1.14: database list cleanup — true transparency, no divider lines, full-bleed circular images. */
.screen-component .database-list .data-list-row{
  padding:8px 9px;
}
.screen-component .database-list .list-row-image{
  padding:0;
  border:0;
}
.screen-component .database-list .list-row-copy,
.screen-component .database-list .list-row-copy strong,
.screen-component .database-list .list-row-copy span,
.screen-component .database-list .list-row-arrow{
  padding:0;
  border:0;
}
.screen-component .database-list .list-row-image img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  border-radius:inherit;
}
.screen-component .database-list.transparent-list{
  background:transparent !important;
  border:0 !important;
  border-radius:0 !important;
}
.screen-component .database-list.transparent-list .data-list-row{
  background:transparent !important;
  border-bottom:0 !important;
}
.screen-component .database-list.transparent-list .data-list-row:hover{
  background:rgba(255,255,255,.10) !important;
}
.screen-component .database-list.transparent-list .list-row-image{
  background:transparent !important;
}

/* V1.15: short/long text fields and scrollable long-text display boxes. */
.data-table textarea.long-text-cell{width:100%;min-width:280px;min-height:96px;max-height:180px;resize:vertical;padding:10px 12px;border:1px solid #d7dce5;border-radius:8px;font:inherit;line-height:1.4;white-space:pre-wrap;overflow-y:auto}
.properties textarea[data-prop="text"]{width:100%;min-height:110px;resize:vertical;padding:10px 12px;border:1px solid #d9deea;border-radius:9px;font:inherit;line-height:1.4}
.screen-component .text-box-component{width:100%;height:100%;padding:10px 12px;border:1px solid #ccd2dd;border-radius:8px;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;overflow-y:auto;overflow-x:hidden;line-height:1.4;user-select:text;touch-action:pan-y}

/* V1.16 teacher app inspection + editable database fields */
.field-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;min-width:130px}.field-head>div:first-child{min-width:0}.field-head-actions{display:flex;gap:3px;opacity:.7}.data-table th:hover .field-head-actions{opacity:1}.field-action{width:25px;height:25px;border:1px solid #d8deea;border-radius:7px;background:#fff;color:#687386;display:grid;place-items:center;cursor:pointer;font-size:12px;padding:0}.field-action:hover{background:#f6f5ff;color:#5144b8;border-color:#c7c2f5}.field-action.danger:hover{background:#fff2f2;color:#a53030;border-color:#efc6c6}.pupil-link{border:0;background:transparent;color:#5144b8;font:inherit;font-weight:800;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.teacher-pupil-apps{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.teacher-readonly-note{margin:14px 18px 0;background:#eef7ff;border-color:#c7e2f8;color:#315a79}.teacher-inspection .project-setup-grid input,.teacher-inspection .data-table input,.teacher-inspection .data-table textarea,.teacher-inspection .data-table select,.teacher-inspection .data-table button,.teacher-inspection [data-action="add-field"],.teacher-inspection [data-action="add-record"],.teacher-inspection [data-action="manage-images"]{pointer-events:none;opacity:.82}.teacher-inspection .toolbox,.teacher-inspection .properties,.teacher-inspection .page-actions,.teacher-inspection .move-handle,.teacher-inspection .resize-handle{pointer-events:none;opacity:.72}.teacher-inspection .screen-component{cursor:default!important}.teacher-inspection .blockly-help::after{content:' · Read-only';font-weight:800;color:#315a79}

/* V1.16 fixed image URL picker */
.image-url-panel{padding:18px 4px 4px}.image-url-panel .field{margin-bottom:8px}.image-url-preview{margin:14px 0;min-height:170px;border:1px dashed #cfd6e4;border-radius:14px;background:#f8f9fc;display:grid;place-items:center;overflow:hidden}.image-url-preview img{display:block;max-width:100%;max-height:240px;object-fit:contain}.image-url-preview .empty-note{margin:14px}

/* V1.18 administrator-only teacher invitations */
.teacher-admin-panel{margin-bottom:16px}.teacher-admin-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.teacher-admin-columns h3{margin:0 0 10px;font-size:14px;color:#596276}.teacher-admin-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.teacher-admin-row:last-child{border-bottom:0}.teacher-admin-row .muted{font-size:12px;margin-top:3px}.danger-outline{border-color:#efc3c3;color:#a83333;background:#fff8f8}.danger-outline:hover{background:#fff0f0}@media(max-width:720px){.teacher-admin-columns{grid-template-columns:1fr}}

/* V1.19 phone-install guidance */
.phone-install-guides{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.phone-install-guides>div{display:flex;flex-direction:column;gap:4px;padding:11px 12px;border:1px solid var(--line,#dfe3ea);border-radius:12px;background:rgba(255,255,255,.7)}
.phone-install-guides span{font-size:12px;line-height:1.4;color:var(--muted,#667085)}
@media(max-width:680px){.phone-install-guides{grid-template-columns:1fr}}

/* V1.20 progressive project capabilities + interactive components */
.capability-banner{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 14px;padding:11px 13px;border:1px solid #d9d4f7;border-radius:13px;background:#f7f5ff;color:#3d3478}.capability-banner>div{display:flex;flex-direction:column;gap:3px}.capability-banner b{font-size:13px}.capability-banner span:not(.tag){font-size:12px;color:#6d678f}.capability-tag{background:#eeeaff!important;color:#5144b8!important}.toolbox-level{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}.toolbox-level small{color:var(--muted);line-height:1.35}.locked-tools{display:flex;flex-direction:column;gap:4px;margin:10px 0;padding:10px;border:1px dashed #cfd4df;border-radius:11px;background:#f8f9fc;color:#70798a;font-size:12px}.locked-tools b{color:#50596b}.capability-modal{max-width:610px}.capability-preview{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin:0 0 16px}.capability-step{padding:9px 7px;border:1px solid #dfe3eb;border-radius:10px;text-align:center;background:#fafbfc;color:#9299a8;display:flex;flex-direction:column;gap:2px}.capability-step b{font-size:11px}.capability-step span{font-size:10px}.capability-step.active{border-color:#bbb2f4;background:#f1eeff;color:#5144b8}.prop-grid-three{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0 12px}.prop-grid-three label{font-size:10px;color:var(--muted)}.prop-grid-three input{width:100%}.screen-component .interactive-input{width:100%;height:100%;border:1px solid #c9cfda;border-radius:9px;padding:8px 10px;font:inherit;background:#fff;color:#172033}.screen-component select.interactive-input{appearance:auto}.screen-component .switch-component{width:100%;height:100%;display:flex;align-items:center;gap:9px;padding:7px 9px;border:1px solid #c9cfda;border-radius:9px;background:#fff;overflow:hidden}.switch-component>input{position:absolute!important;opacity:0!important;pointer-events:none;width:1px!important;height:1px!important}.switch-track{width:40px;height:22px;border-radius:999px;background:#c9ced8;position:relative;flex:0 0 auto;transition:.15s}.switch-track>span{position:absolute;width:18px;height:18px;left:2px;top:2px;border-radius:50%;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.2);transition:.15s}.switch-component>input:checked+.switch-track{background:#6256df}.switch-component>input:checked+.switch-track>span{transform:translateX(18px)}.switch-component b{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.screen-component .slider-component{width:100%;height:100%;display:flex;align-items:center;gap:9px;padding:8px 10px;border:1px solid #c9cfda;border-radius:9px;background:#fff}.screen-component .slider-component input[type=range]{border:0;padding:0;min-width:0;flex:1;height:auto;background:transparent}.slider-value{min-width:30px;text-align:right;font-size:12px;font-weight:800}.screen[data-phone-mode="test"] .interactive-input,.screen[data-phone-mode="test"] .switch-component,.screen[data-phone-mode="test"] .slider-component{touch-action:auto;user-select:auto}.prop-help{display:block;margin-top:5px;color:var(--muted);font-size:11px;line-height:1.35}@media(max-width:620px){.capability-preview{grid-template-columns:repeat(2,1fr)}.capability-banner{align-items:flex-start;flex-direction:column}}

/* V1.21 project briefs + Connected App / API workspace */
.project-brief{max-width:1180px;margin:12px auto 0;background:linear-gradient(135deg,#f7f8ff,#ffffff);border:1px solid #dfe3f7;border-radius:16px;overflow:hidden;box-shadow:0 5px 18px rgba(52,61,115,.06)}
.project-brief summary{display:flex;gap:12px;align-items:center;padding:14px 18px;cursor:pointer;list-style:none}.project-brief summary::-webkit-details-marker{display:none}.project-brief summary>span:first-child{font-size:26px}.project-brief summary>div{display:flex;flex-direction:column;gap:3px;flex:1}.project-brief summary small{color:#667085;font-weight:500}.brief-chevron{font-size:20px;color:#6b6f86}.project-brief[open] .brief-chevron{transform:rotate(180deg)}
.project-brief-body{padding:0 18px 18px}.brief-story{font-size:15px;line-height:1.55;color:#394150}.brief-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:12px}.brief-columns>div{background:#fff;border:1px solid #e7e9f5;border-radius:12px;padding:12px 14px}.brief-columns h4{margin:0 0 6px}.brief-columns ul,.assignment-brief-mini ul{margin:6px 0 0;padding-left:20px;line-height:1.55}.assignment-brief-mini{margin:8px 0 14px}.assignment-brief-mini summary{cursor:pointer;font-weight:700;color:#565acb}
.recommended-brief{display:flex;align-items:flex-start;gap:12px;padding:13px 14px;border-radius:12px;background:#f4f7ff;border:1px solid #dce4ff;margin:10px 0 14px}.recommended-brief>span{font-size:28px}.recommended-brief b{display:block}.recommended-brief p{margin:3px 0 0;color:#5c6476;line-height:1.4}
.api-flow{display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap;margin:0 0 16px;padding:14px;background:#f6fbf7;border:1px solid #d8efdf;border-radius:14px}.api-flow span{background:#fff;border:1px solid #dfe7e1;border-radius:999px;padding:8px 12px;font-weight:700}.api-flow b{color:#4c7f60;font-size:13px}
.api-library{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:16px}.api-card{appearance:none;text-align:left;background:#fff;border:2px solid #e2e5ec;border-radius:16px;padding:16px;cursor:pointer;color:inherit;font:inherit;transition:.15s transform,.15s border-color,.15s box-shadow}.api-card:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 22px rgba(38,55,90,.08)}.api-card.active{border-color:#3f9e68;background:#f6fff9;box-shadow:0 0 0 3px rgba(63,158,104,.08)}.api-card:disabled{cursor:default;opacity:.9}.api-emoji{display:block;font-size:30px;margin-bottom:6px}.api-card b,.api-card small{display:block}.api-card small{color:#6d7484;margin-top:2px}.api-card p{margin:8px 0 0;color:#555e70;line-height:1.4;font-size:13px}
.api-workbench{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}.api-test-row{display:flex;gap:8px;margin:7px 0 16px}.api-test-row input{flex:1}.api-field-chips{display:flex;flex-wrap:wrap;gap:7px;margin:8px 0 16px}.api-field-chips span{display:inline-flex;gap:6px;align-items:center;padding:6px 8px;border:1px solid #dfe4e9;border-radius:9px;background:#fafbfc;font-size:12px}.api-field-chips code{color:#32744c;background:#eaf7ee;border-radius:5px;padding:2px 4px}.api-preview{min-height:300px}.api-preview-empty{height:220px;display:grid;place-items:center;text-align:center;color:#7b8391;border:2px dashed #dce2e7;border-radius:14px;padding:20px}.api-friendly-result{display:grid;gap:8px}.api-friendly-result>div{display:grid;grid-template-columns:140px 1fr;gap:10px;align-items:center;padding:8px 0;border-bottom:1px solid #edf0f2}.api-friendly-result span{color:#687181;font-size:13px}.api-friendly-result b{overflow-wrap:anywhere}.api-friendly-result img{width:92px;height:92px;object-fit:contain;border:1px solid #e5e7eb;border-radius:10px;background:#fff}.json-view{margin-top:14px}.json-view summary{cursor:pointer;font-weight:700;color:#416a51}.json-view pre{white-space:pre-wrap;overflow:auto;max-height:260px;background:#10151d;color:#dfeee5;padding:13px;border-radius:11px;font-size:12px;line-height:1.5}
@media(max-width:850px){.brief-columns,.api-workbench{grid-template-columns:1fr}.api-library{grid-template-columns:1fr}.api-friendly-result>div{grid-template-columns:110px 1fr}}
.brief-journey{margin:12px 0;padding:12px 14px;background:#fff9ec;border:1px solid #f2dfb6;border-radius:12px}.brief-journey h4{margin:0 0 7px}.brief-journey ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;counter-reset:journey;list-style:none;padding:0;margin:0}.brief-journey li{counter-increment:journey;background:#fff;border:1px solid #eee3c8;border-radius:9px;padding:9px;font-size:13px;line-height:1.35}.brief-journey li:before{content:counter(journey);display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:#f2c96d;margin-right:6px;font-weight:800}@media(max-width:850px){.brief-journey ol{grid-template-columns:1fr 1fr}}
.api-test-inspector .mini-json{margin:0;max-height:240px;overflow:auto;white-space:pre-wrap;background:#10151d;color:#dfeee5;border-radius:10px;padding:10px;font-size:11px;line-height:1.45}


/* V1.22 — scrollable long modals */
.modal-backdrop{overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.modal{max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;-webkit-overflow-scrolling:touch}
.modal textarea{width:100%;box-sizing:border-box;border:1px solid var(--line);border-radius:9px;padding:10px;font:inherit;resize:vertical;min-height:84px}
.capability-modal .modal-actions{position:sticky;bottom:-20px;z-index:5;background:#fff;padding:12px 0 2px;box-shadow:0 -12px 22px rgba(255,255,255,.94)}
@media(max-width:620px){.modal-backdrop{padding:10px}.modal{max-height:calc(100vh - 20px);max-height:calc(100dvh - 20px)}.capability-modal .modal-actions{bottom:-20px}}

/* V1.24 — universal data sources + staged assignments */
.api-binding-card{border:1px solid #cfd8ff;background:#f8f9ff;border-radius:14px;padding:12px;margin:12px 0}.api-binding-card .prop-section-title{margin-top:0}.api-result-count{margin-bottom:12px}.assignment-pupil-picker{border:1px solid var(--line);background:#fafbff;border-radius:14px;padding:12px;margin:-2px 0 14px}.pupil-picker-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.pupil-check-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px;max-height:250px;overflow:auto;padding:2px}.pupil-check{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px;cursor:pointer}.pupil-check input{margin-top:3px}.pupil-check span{display:flex;flex-direction:column;min-width:0}.pupil-check small{color:var(--muted);overflow:hidden;text-overflow:ellipsis}.assignment-manage-modal{max-width:760px}.assignment-audience select{font-weight:650}

/* V1.26 — beginner API master/detail guidance */
.api-master-detail-help{margin:12px 0 16px}
.mini-block-recipe{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:10px 0;font-weight:700}
.mini-block-recipe span{padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}