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var(--accent);background:var(--soft);overflow-wrap:anywhere;border-radius:16px;align-items:center;min-height:82px;padding:12px}.tile-bank,.tile-dropzone{flex-wrap:wrap;gap:8px;display:flex}.tile-bank{margin-top:18px}.answer-tile{white-space:pre-wrap;overflow-wrap:anywhere;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;min-width:44px;max-width:100%;min-height:48px}.answer-tile:disabled{cursor:default;opacity:.4}.selected-tile{border-color:var(--accent);cursor:pointer}.selected-tile:disabled{opacity:1}.tile-actions{margin-top:8px}.tile-ghost{z-index:100;pointer-events:none;background:var(--accent);color:#fff;border-radius:12px;padding:12px 16px;position:fixed;transform:translate(-50%,-110%);box-shadow:0 4px 18px #0003}.exercise-step{min-width:0}.step-navigation{flex-wrap:wrap;align-items:center;gap:12px;margin:20px 0;display:flex}.step-counter{color:var(--muted);font-size:14px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.feedback-mode{margin-bottom:14px;padding:12px 18px}.feedback-mode summary,.homework-privacy>summary,.homework-setup>summary{cursor:pointer}.homework-privacy,.homework-setup{margin-block:12px}.completion{border-top:0;margin-top:0;padding-top:0}@media (max-width:620px){.content:has(.exercise){padding:12px 12px 20px}.content:has(.exercise)>.demo-note{margin-bottom:8px}.content:has(.exercise)>.page-heading{margin-bottom:12px}.content:has(.exercise)>.page-heading h1{margin:0;font-size:20px}.content:has(.exercise)>.page-heading .eyebrow,.content:has(.exercise)>.page-heading p{display:none}.exercise{padding:16px}.exercise h2,.exercise>.eyebrow,.exercise>.muted{margin-bottom:8px}.exercise .answer-tiles{margin:10px 0}.exercise .tile-instruction{margin-bottom:8px;font-size:12px}.exercise .tile-dropzone{min-height:64px;padding:6px}.exercise .tile-bank{margin-top:10px}.exercise .exercise-nav{margin-top:14px}.exercise .tile-actions{margin-top:0}.exercise .feedback{margin-top:14px;padding:12px}}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}