text: /*!
   * smooth-scroll v15.2.1
   * Animate scrolling to anchor links
   * (c) 2019 Chris Ferdinandi
   * MIT License
   * http://github.com/cferdinandi/smooth-scroll
   */
  
  (function (root, factory) {
  	if (typeof define === 'function' && define.amd) {
  		define([], (function () {
  			return factory(root);
  		}));
  	} else if (typeof exports === 'object') {
  		module.exports = factory(root);
  	} else {
  		root.SmoothScroll = factory(root);
  	}
  })(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
  
  	'use strict';
  
  	//
  	// Default settings
  	//
  
  	var defaults = {
  
  		// Selectors
  		ignore: '[data-scroll-ignore]',
  		header: null,
  		topOnEmptyHash: true,
  
  		// Speed & Duration
  		speed: 1000,
  		speedAsDuration: false,
  		durationMax: null,
  		durationMin: null,
  		clip: true,
  		offset: 50,
  
  		// Easing
  		easing: 'easeInOutCubic',
  		customEasing: null,
  
  		// History
  		updateURL: true,
  		popstate: true,
  
  		// Custom Events
  		emitEvents: true
  
  	};
  
  
  	//
  	// Utility Methods
  	//
  
  	/**
  	 * Check if browser supports required methods
  	 * @return {Boolean} Returns true if all required methods are supported
  	 */
  	var supports = function () {
  		return (
  			'querySelector' in document &&
  			'addEventListener' in window &&
  			'requestAnimationFrame' in window &&
  			'closest' in window.Element.prototype
  		);
  	};
  
  	/**
  	 * Merge two or more objects together.
  	 * @param   {Object}   objects  The objects to merge together
  	 * @returns {Object}            Merged values of defaults and options
  	 */
  	var extend = function () {
  		var merged = {};
  		Array.prototype.forEach.call(arguments, (function (obj) {
  			for (var key in obj) {
  				if (!obj.hasOwnProperty(key)) return;
  				merged[key] = obj[key];
  			}
  		}));
  		return merged;
  	};
  
  	/**
  	 * Check to see if user prefers reduced motion
  	 * @param  {Object} settings Script settings
  	 */
  	var reduceMotion = function (settings) {
  		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
  			return true;
  		}
  		return false;
  	};
  
  	/**
  	 * Get the height of an element.
  	 * @param  {Node} elem The element to get the height of
  	 * @return {Number}    The element's height in pixels
  	 */
  	var getHeight = function (elem) {
  		return parseInt(window.getComputedStyle(elem).height, 10);
  	};
  
  	/**
  	 * Escape special characters for use with querySelector
  	 * @author Mathias Bynens
  	 * @link https://github.com/mathiasbynens/CSS.escape
  	 * @param {String} id The anchor ID to escape
  	 */
  	var escapeCharacters = function (id) {
  
  		// Remove leading hash
  		if (id.charAt(0) === '#') {
  			id = id.substr(1);
  		}
  
  		var string = String(id);
  		var length = string.length;
  		var index = -1;
  		var codeUnit;
  		var result = '';
  		var firstCodeUnit = string.charCodeAt(0);
  		while (++index < length) {
  			codeUnit = string.charCodeAt(index);
  			// Note: there’s no need to special-case astral symbols, surrogate
  			// pairs, or lone surrogates.
  
  			// If the character is NULL (U+0000), then throw an
  			// `InvalidCharacterError` exception and terminate these steps.
  			if (codeUnit === 0x0000) {
  				throw new InvalidCharacterError(
  					'Invalid character: the input contains U+0000.'
  				);
  			}
  
  			if (
  				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
  				// U+007F, […]
  				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
  				// If the character is the first character and is in the range [0-9]
  				// (U+0030 to U+0039), […]
  				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
  				// If the character is the second character and is in the range [0-9]
  				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
  				(
  					index === 1 &&
  					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
  					firstCodeUnit === 0x002D
  				)
  			) {
  				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
  				result += '\\' + codeUnit.toString(16) + ' ';
  				continue;
  			}
  
  			// If the character is not handled by one of the above rules and is
  			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
  			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
  			// U+005A), or [a-z] (U+0061 to U+007A), […]
  			if (
  				codeUnit >= 0x0080 ||
  				codeUnit === 0x002D ||
  				codeUnit === 0x005F ||
  				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
  				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
  				codeUnit >= 0x0061 && codeUnit <= 0x007A
  			) {
  				// the character itself
  				result += string.charAt(index);
  				continue;
  			}
  
  			// Otherwise, the escaped character.
  			// http://dev.w3.org/csswg/cssom/#escape-a-character
  			result += '\\' + string.charAt(index);
  
  		}
  
  		// Return sanitized hash
  		return '#' + result;
  
  	};
  
  	/**
  	 * Calculate the easing pattern
  	 * @link https://gist.github.com/gre/1650294
  	 * @param {String} type Easing pattern
  	 * @param {Number} time Time animation should take to complete
  	 * @returns {Number}
  	 */
  	var easingPattern = function (settings, time) {
  		var pattern;
  
  		// Default Easing Patterns
  		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
  		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
  		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
  		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
  		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
  		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
  		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
  		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
  		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
  		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
  		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
  		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
  
  		// Custom Easing Patterns
  		if (!!settings.customEasing) pattern = settings.customEasing(time);
  
  		return pattern || time; // no easing, no acceleration
  	};
  
  	/**
  	 * Determine the document's height
  	 * @returns {Number}
  	 */
  	var getDocumentHeight = function () {
  		return Math.max(
  			document.body.scrollHeight, document.documentElement.scrollHeight,
  			document.body.offsetHeight, document.documentElement.offsetHeight,
  			document.body.clientHeight, document.documentElement.clientHeight
  		);
  	};
  
  	/**
  	 * Calculate how far to scroll
  	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
  	 * @param {Element} anchor       The anchor element to scroll to
  	 * @param {Number}  headerHeight Height of a fixed header, if any
  	 * @param {Number}  offset       Number of pixels by which to offset scroll
  	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
  	 * @returns {Number}
  	 */
  	var getEndLocation = function (anchor, headerHeight, offset, clip) {
  		var location = 0;
  		if (anchor.offsetParent) {
  			do {
  				location += anchor.offsetTop;
  				anchor = anchor.offsetParent;
  			} while (anchor);
  		}
  		location = Math.max(location - headerHeight - offset, 0);
  		if (clip) {
  			location = Math.min(location, getDocumentHeight() - window.innerHeight);
  		}
   		return location;
  	};
  
  	/**
  	 * Get the height of the fixed header
  	 * @param  {Node}   header The header
  	 * @return {Number}        The height of the header
  	 */
  	var getHeaderHeight = function (header) {
  		return !header ? 0 : (getHeight(header) + header.offsetTop);
  	};
  
  	/**
  	 * Calculate the speed to use for the animation
  	 * @param  {Number} distance The distance to travel
  	 * @param  {Object} settings The plugin settings
  	 * @return {Number}          How fast to animate
  	 */
  	var getSpeed = function (distance, settings) {
  		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
  		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
  		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
  		return parseInt(speed, 10);
  	};
  
  	var setHistory = function (options) {
  
  		// Make sure this should run
  		if (!history.replaceState || !options.updateURL || history.state) return;
  
  		// Get the hash to use
  		var hash = window.location.hash;
  		hash = hash ? hash : '';
  
  		// Set a default history
  		history.replaceState(
  			{
  				smoothScroll: JSON.stringify(options),
  				anchor: hash ? hash : window.pageYOffset
  			},
  			document.title,
  			hash ? hash : window.location.href
  		);
  
  	};
  
  	/**
  	 * Update the URL
  	 * @param  {Node}    anchor  The anchor that was scrolled to
  	 * @param  {Boolean} isNum   If true, anchor is a number
  	 * @param  {Object}  options Settings for Smooth Scroll
  	 */
  	var updateURL = function (anchor, isNum, options) {
  
  		// Bail if the anchor is a number
  		if (isNum) return;
  
  		// Verify that pushState is supported and the updateURL option is enabled
  		if (!history.pushState || !options.updateURL) return;
  
  		// Update URL
  		history.pushState(
  			{
  				smoothScroll: JSON.stringify(options),
  				anchor: anchor.id
  			},
  			document.title,
  			anchor === document.documentElement ? '#top' : '#' + anchor.id
  		);
  
  	};
  
  	/**
  	 * Bring the anchored element into focus
  	 * @param {Node}     anchor      The anchor element
  	 * @param {Number}   endLocation The end location to scroll to
  	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
  	 */
  	var adjustFocus = function (anchor, endLocation, isNum) {
  
  		// Is scrolling to top of page, blur
  		if (anchor === 0) {
  			document.body.focus();
  		}
  
  		// Don't run if scrolling to a number on the page
  		if (isNum) return;
  
  		// Otherwise, bring anchor element into focus
  		anchor.focus();
  		if (document.activeElement !== anchor) {
  			anchor.setAttribute('tabindex', '-1');
  			anchor.focus();
  			anchor.style.outline = 'none';
  		}
  		window.scrollTo(0 , endLocation);
  
  	};
  
  	/**
  	 * Emit a custom event
  	 * @param  {String} type    The event type
  	 * @param  {Object} options The settings object
  	 * @param  {Node}   anchor  The anchor element
  	 * @param  {Node}   toggle  The toggle element
  	 */
  	var emitEvent = function (type, options, anchor, toggle) {
  		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
  		var event = new CustomEvent(type, {
  			bubbles: true,
  			detail: {
  				anchor: anchor,
  				toggle: toggle
  			}
  		});
  		document.dispatchEvent(event);
  	};
  
  
  	//
  	// SmoothScroll Constructor
  	//
  
  	var SmoothScroll = function (selector, options) {
  
  		//
  		// Variables
  		//
  
  		var smoothScroll = {}; // Object for public APIs
  		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
  
  
  		//
  		// Methods
  		//
  
  		/**
  		 * Cancel a scroll-in-progress
  		 */
  		smoothScroll.cancelScroll = function (noEvent) {
  			cancelAnimationFrame(animationInterval);
  			animationInterval = null;
  			if (noEvent) return;
  			emitEvent('scrollCancel', settings);
  		};
  
  		/**
  		 * Start/stop the scrolling animation
  		 * @param {Node|Number} anchor  The element or position to scroll to
  		 * @param {Element}     toggle  The element that toggled the scroll event
  		 * @param {Object}      options
  		 */
  		smoothScroll.animateScroll = function (anchor, toggle, options) {
  
  			// Cancel any in progress scrolls
  			smoothScroll.cancelScroll();
  
  			// Local settings
  			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
  
  			// Selectors and variables
  			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
  			var anchorElem = isNum || !anchor.tagName ? null : anchor;
  			if (!isNum && !anchorElem) return;
  			var startLocation = window.pageYOffset; // Current location on the page
  			if (_settings.header && !fixedHeader) {
  				// Get the fixed header if not already set
  				fixedHeader = document.querySelector(_settings.header);
  			}
  			var headerHeight = getHeaderHeight(fixedHeader);
  			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
  			var distance = endLocation - startLocation; // distance to travel
  			var documentHeight = getDocumentHeight();
  			var timeLapsed = 0;
  			var speed = getSpeed(distance, _settings);
  			var start, percentage, position;
  
  			/**
  			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
  			 * @param {Number} position Current position on the page
  			 * @param {Number} endLocation Scroll to location
  			 * @param {Number} animationInterval How much to scroll on this loop
  			 */
  			var stopAnimateScroll = function (position, endLocation) {
  
  				// Get the current location
  				var currentLocation = window.pageYOffset;
  
  				// Check if the end location has been reached yet (or we've hit the end of the document)
  				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
  
  					// Clear the animation timer
  					smoothScroll.cancelScroll(true);
  
  					// Bring the anchored element into focus
  					adjustFocus(anchor, endLocation, isNum);
  
  					// Emit a custom event
  					emitEvent('scrollStop', _settings, anchor, toggle);
  
  					// Reset start
  					start = null;
  					animationInterval = null;
  
  					return true;
  
  				}
  			};
  
  			/**
  			 * Loop scrolling animation
  			 */
  			var loopAnimateScroll = function (timestamp) {
  				if (!start) { start = timestamp; }
  				timeLapsed += timestamp - start;
  				percentage = speed === 0 ? 0 : (timeLapsed / speed);
  				percentage = (percentage > 1) ? 1 : percentage;
  				position = startLocation + (distance * easingPattern(_settings, percentage));
  				window.scrollTo(0, Math.floor(position));
  				if (!stopAnimateScroll(position, endLocation)) {
  					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
  					start = timestamp;
  				}
  			};
  
  			/**
  			 * Reset position to fix weird iOS bug
  			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
  			 */
  			if (window.pageYOffset === 0) {
  				window.scrollTo(0, 0);
  			}
  
  			// Update the URL
  			updateURL(anchor, isNum, _settings);
  
  			// Emit a custom event
  			emitEvent('scrollStart', _settings, anchor, toggle);
  
  			// Start scrolling animation
  			smoothScroll.cancelScroll(true);
  			window.requestAnimationFrame(loopAnimateScroll);
  
  		};
  
  		/**
  		 * If smooth scroll element clicked, animate scroll
  		 */
  		var clickHandler = function (event) {
  
  			// Don't run if the user prefers reduced motion
  			if (reduceMotion(settings)) return;
  
  			// Don't run if right-click or command/control + click
  			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
  
  			// Check if event.target has closest() method
  			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
  			if(!('closest' in event.target))return;
  
  			// Check if a smooth scroll link was clicked
  			toggle = event.target.closest(selector);
  			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
  
  			// Only run if link is an anchor and points to the current page
  			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
  
  			// Get an escaped version of the hash
  			var hash = escapeCharacters(toggle.hash);
  
  			// Get the anchored element
  			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
  			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
  
  			// If anchored element exists, scroll to it
  			if (!anchor) return;
  			event.preventDefault();
  			setHistory(settings);
  			smoothScroll.animateScroll(anchor, toggle);
  
  		};
  
  		/**
  		 * Animate scroll on popstate events
  		 */
  		var popstateHandler = function (event) {
  
  			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
  			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
  			if (history.state === null) return;
  
  			// Only run if state is a popstate record for this instantiation
  			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
  
  			// Only run if state includes an anchor
  
  			// if (!history.state.anchor && history.state.anchor !== 0) return;
  
  			// Get the anchor
  			var anchor = history.state.anchor;
  			if (typeof anchor === 'string' && anchor) {
  				anchor = document.querySelector(escapeCharacters(history.state.anchor));
  				if (!anchor) return;
  			}
  
  			// Animate scroll to anchor link
  			smoothScroll.animateScroll(anchor, null, {updateURL: false});
  
  		};
  
  		/**
  		 * Destroy the current initialization.
  		 */
  		smoothScroll.destroy = function () {
  
  			// If plugin isn't already initialized, stop
  			if (!settings) return;
  
  			// Remove event listeners
  			document.removeEventListener('click', clickHandler, false);
  			window.removeEventListener('popstate', popstateHandler, false);
  
  			// Cancel any scrolls-in-progress
  			smoothScroll.cancelScroll();
  
  			// Reset variables
  			settings = null;
  			anchor = null;
  			toggle = null;
  			fixedHeader = null;
  			eventTimeout = null;
  			animationInterval = null;
  
  		};
  
  		/**
  		 * Initialize Smooth Scroll
  		 * @param {Object} options User settings
  		 */
  		smoothScroll.init = function (options) {
  
  			// feature test
  			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
  
  			// Destroy any existing initializations
  			smoothScroll.destroy();
  
  			// Selectors and variables
  			settings = extend(defaults, options || {}); // Merge user options with defaults
  			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
  
  			// When a toggle is clicked, run the click handler
  			document.addEventListener('click', clickHandler, false);
  
  			// If updateURL and popState are enabled, listen for pop events
  			if (settings.updateURL && settings.popstate) {
  				window.addEventListener('popstate', popstateHandler, false);
  			}
  
  		};
  
  
  		//
  		// Initialize plugin
  		//
  
  		smoothScroll.init(options);
  
  
  		//
  		// Public APIs
  		//
  
  		return smoothScroll;
  
  	};
  
  	return SmoothScroll;
  
  }));
  