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0;border:none;width:100%;height:100%;position:absolute;inset:0}.modal-panel{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:24px;position:relative;overflow:auto}.modal-close{font-size:var(--font-size-lg);cursor:pointer;background:0 0;border:none;position:absolute;top:8px;right:8px}.qasm-display{background-color:var(--color-code-bg);flex-direction:column;display:flex}.qasm-actions{flex-direction:column;gap:8px;display:flex}.qasm-file-input{display:none}.qasm-code-area{flex:1;min-height:0;position:relative}.qasm-copy-button{border-radius:var(--radius-sm);color:var(--color-text-faint);cursor:pointer;background:0 0;border:none;padding:6px;transition:all .1s;display:flex;position:absolute;top:6px;right:6px}.qasm-copy-button:hover{background-color:var(--color-raised);color:var(--color-text)}.qasm-copy-button.is-copied{color:var(--color-success-text)}.qasm-code{height:100%;font-family:var(--font-mono);white-space:pre-wrap;font-size:var(--font-size-base);margin:0;padding:12px 40px 12px 12px;line-height:1.5;overflow:auto}.qasm-banner{font-size:var(--font-size-sm);border-top:1px solid var(--color-border);padding:8px 12px}.qasm-banner-error{background-color:var(--color-error-bg);color:var(--color-error-text)}.qasm-error-modal{max-width:480px;max-height:80vh}.qasm-error-message{border-radius:var(--radius-md);background-color:var(--color-error-bg);color:var(--color-error-text);font-family:var(--font-mono);font-size:var(--font-size-sm);padding:8px 12px}.help-modal{max-width:600px;max-height:80vh}.about-modal{max-width:440px;max-height:80vh}.about-modal a{color:var(--color-text-link)}.menu-backdrop{z-index:var(--z-overlay);position:fixed;inset:0}.settings-dropdown{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-dropdown);min-width:200px;z-index:var(--z-dropdown);padding:4px 0;position:fixed}.settings-menu-header{border-bottom:1px solid var(--color-border-divider);color:var(--color-text);padding:8px 12px;font-weight:700}.dropdown-item{cursor:pointer;text-align:left;width:100%;font-size:var(--font-size-base);background:0 0;border:none;align-items:center;gap:8px;padding:8px 12px;display:flex}.dropdown-item:hover{background-color:var(--color-raised)}.dropdown-slider,.dropdown-radio-group{cursor:default;border-top:1px solid var(--color-border-divider);flex-direction:column;align-items:stretch}.dropdown-slider:hover,.dropdown-radio-group:hover{background:0 0}.dropdown-slider{gap:4px}.slider-label{color:var(--color-text);justify-content:space-between;display:flex}.slider-value{color:var(--color-text-faint)}.dropdown-slider input[type=range]{width:100%}.dropdown-radio-group{gap:2px;padding:8px 0 4px}.dropdown-group-label{color:var(--color-text-faint);padding:0 12px 4px}.dropdown-radio-example{color:var(--color-text-faint);margin-left:auto}.circuit-selector{flex-shrink:0;display:inline-block;position:relative}.circuit-selector-button{align-items:center;gap:8px;display:flex}.dropdown-arrow{margin-left:4px;font-size:10px}.circuit-selector-overlay{z-index:var(--z-overlay);cursor:default;background:0 0;border:none;outline:none;margin:0;padding:0;position:fixed;inset:0}.circuit-selector-dropdown{background:var(--color-surface);border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);min-width:280px;z-index:var(--z-dropdown);position:absolute;top:calc(100% + 8px);left:0;overflow:hidden;box-shadow:0 4px 20px #00000026}.dropdown-header{font-weight:600;font-size:var(--font-size-base);color:var(--color-text-link);border-bottom:1px solid var(--color-border-subtle);background:var(--color-surface-alt);padding:12px 16px}.circuit-option{text-align:left;cursor:pointer;border:none;border-bottom:1px solid var(--color-raised);background:0 0;width:100%;padding:12px 16px;transition:background-color .15s;display:block}.circuit-option:last-child{border-bottom:none}.circuit-option:hover{background:var(--color-surface-alt)}.circuit-option.active{background:var(--color-interactive-bg);border-left:3px solid var(--color-interactive)}.option-name{font-weight:500;font-size:var(--font-size-base);color:#2d3748;margin-bottom:4px}.option-description{font-size:var(--font-size-sm);color:var(--color-text-faint)}.math-help-heading{text-align:center}.math-help-gate-list{text-align:left;display:inline-block}.math-help-modal{max-width:1800px;max-height:90vh}.math-help-gate-row{justify-content:space-between;align-items:center;width:100%;margin:0 auto 20px;display:flex}.math-help-gate-img{width:15%;height:auto;margin:0 auto}.math-help-formalism-img{width:50%;height:auto;margin:0 auto;display:block}.math-help-twine-img{width:100%;height:auto;margin:0 auto;display:block}.math-help-figure-note{color:var(--color-text-faint);font-size:var(--font-size-sm)}