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/**
* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
*/
const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow)&&"adoptedStyleSheets"in Document.prototype&&"replace"in CSSStyleSheet.prototype,s=Symbol(),o=new WeakMap;class n{constructor(t,e,o){if(this._$cssResult$=!0,o!==s)throw Error("CSSResult is not constructable. Use `unsafeCSS` or `css` instead.");this.cssText=t,this.t=e}get styleSheet(){let t=this.o;const s=this.t;if(e&&void 0===t){const e=void 0!==s&&1===s.length;e&&(t=o.get(s)),void 0===t&&((this.o=t=new CSSStyleSheet).replaceSync(this.cssText),e&&o.set(s,t))}return t}toString(){return this.cssText}}const r=t=>new n("string"==typeof t?t:t+"",void 0,s),i=(t,...e)=>{const o=1===t.length?t[0]:e.reduce(((e,s,o)=>e+(t=>{if(!0===t._$cssResult$)return t.cssText;if("number"==typeof t)return t;throw Error("Value passed to 'css' function must be a 'css' function result: "+t+". Use 'unsafeCSS' to pass non-literal values, but take care to ensure page security.")})(s)+t[o+1]),t[0]);return new n(o,t,s)},S=(s,o)=>{if(e)s.adoptedStyleSheets=o.map((t=>t instanceof CSSStyleSheet?t:t.styleSheet));else for(const e of o){const o=document.createElement("style"),n=t.litNonce;void 0!==n&&o.setAttribute("nonce",n),o.textContent=e.cssText,s.appendChild(o)}},c=e?t=>t:t=>t instanceof CSSStyleSheet?(t=>{let e="";for(const s of t.cssRules)e+=s.cssText;return r(e)})(t):t;export{n as CSSResult,S as adoptStyles,i as css,c as getCompatibleStyle,e as supportsAdoptingStyleSheets,r as unsafeCSS};
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