"use strict";
!function () {
    function e() { z.keyboardSupport && f("keydown", a) }
    function t() {
        if (!A && document.body) {
            A = !0; var t = document.body, o = document.documentElement, n = window.innerHeight, r = t.scrollHeight;
            if (B = document.compatMode.indexOf("CSS") >= 0 ? o : t, D = t, e(),
            top != self) X = !0; else
                if (r > n && (t.offsetHeight <= n || o.offsetHeight <= n)) {
                    var a = document.createElement("div");
                    a.style.cssText = "position:absolute; z-index:-10000; top:0; left:0; right:0; height:" + B.scrollHeight + "px", document.body.appendChild(a);
                    var i; T = function () {
                        i || (i = setTimeout(function () { L || (a.style.height = "0", a.style.height = B.scrollHeight + "px", i = null) },
                        500))
                    },
                    setTimeout(T, 10),
                    f("resize", T);
                    var l = { attributes: !0, childList: !0, characterData: !1 };

                    if (M = new V(T),
                    M.observe(t, l),
                    B.offsetHeight <= n) {
                        var c = document.createElement("div");
                        c.style.clear = "both", t.appendChild(c)
                    }
                }
            z.fixedBackground || L || (t.style.backgroundAttachment = "scroll", o.style.backgroundAttachment = "scroll")
        }
    }
    function o() {
        M && M.disconnect(),
        h(I, r),
        h("mousedown", i),
        h("keydown", a),
        h("resize", T),
        h("load", t)
    }
    function n(e, t, o) {
        if (p(t, o),
        1 != z.accelerationMax) {
            var n = Date.now(),
            r = n - R;
            if (r < z.accelerationDelta) {
                var a = (1 + 50 / r) / 2; a > 1 && (a = Math.min(a, z.accelerationMax),
                t *= a, o *= a)
            }
            R = Date.now()
        }

        if (q.push({ x: t, y: o, lastX: 0 > t ? .99 : -.99, lastY: 0 > o ? .99 : -.99, start: Date.now() }),
        !P) {
            var i = e === document.body, l = function () {
                for (var n = Date.now(),
                r = 0, a = 0, c = 0; c < q.length; c++) {
                    var u = q[c], d = n - u.start, s = d >= z.animationTime, m = s ? 1 : d / z.animationTime; z.pulseAlgorithm && (m = x(m));
                    var f = u.x * m - u.lastX >> 0, h = u.y * m - u.lastY >> 0; r += f, a += h, u.lastX += f, u.lastY += h, s && (q.splice(c, 1),
                    c--)
                }
                i ? window.scrollBy(r, a) : (r && (e.scrollLeft += r),
                a && (e.scrollTop += a)),
                t || o || (q = []),
                q.length ? _(l, e, 1e3 / z.frameRate + 1) : P = !1
            };
            _(l, e, 0),
            P = !0
        }
    }
    function r(e) {
        A || t();
        var o = e.target, r = u(o);

        if (!r || e.defaultPrevented || e.ctrlKey) return !0;
        if (w(D, "embed") || w(o, "embed") && /\.pdf/i.test(o.src) || w(D, "object")) return !0; var a = -e.wheelDeltaX || e.deltaX || 0, i = -e.wheelDeltaY || e.deltaY || 0; return K && (e.wheelDeltaX && b(e.wheelDeltaX, 120) && (a = -120 * (e.wheelDeltaX / Math.abs(e.wheelDeltaX))),
        e.wheelDeltaY && b(e.wheelDeltaY, 120) && (i = -120 * (e.wheelDeltaY / Math.abs(e.wheelDeltaY)))),
        a || i || (i = -e.wheelDelta || 0),
        1 === e.deltaMode && (a *= 40, i *= 40),
        !z.touchpadSupport && v(i) ? !0 : (Math.abs(a) > 1.2 && (a *= z.stepSize / 120),
        Math.abs(i) > 1.2 && (i *= z.stepSize / 120),
        n(r, a, i),
        e.preventDefault(),
        void l())
    }
    function a(e) {
        var t = e.target, o = e.ctrlKey || e.altKey || e.metaKey || e.shiftKey && e.keyCode !== N.spacebar; document.contains(D) || (D = document.activeElement);
        var r = /^(textarea|select|embed|object)$/i, a = /^(button|submit|radio|checkbox|file|color|image)$/i;
        if (r.test(t.nodeName) || w(t, "input") && !a.test(t.type) || w(D, "video") || y(e) || t.isContentEditable || e.defaultPrevented || o) return !0;
        if ((w(t, "button") || w(t, "input") && a.test(t.type)) && e.keyCode === N.spacebar) return !0; var i, c = 0, d = 0, s = u(D),
        m = s.clientHeight; switch (s == document.body && (m = window.innerHeight),
        e.keyCode) { case N.up: d = -z.arrowScroll; break; case N.down: d = z.arrowScroll; break; case N.spacebar: i = e.shiftKey ? 1 : -1, d = -i * m * .9; break; case N.pageup: d = .9 * -m; break; case N.pagedown: d = .9 * m; break; case N.home: d = -s.scrollTop; break; case N.end: var f = s.scrollHeight - s.scrollTop - m; d = f > 0 ? f + 10 : 0; break; case N.left: c = -z.arrowScroll; break; case N.right: c = z.arrowScroll; break; default: return !0 }
        n(s, c, d),
        e.preventDefault(),
        l()
    }
    function i(e) { D = e.target }
    function l() {
        clearTimeout(E),
        E = setInterval(function () { F = {} },
        1e3)
    }
    function c(e, t) { for (var o = e.length; o--;) F[j(e[o])] = t; return t }
    function u(e) {
        var t = [], o = document.body, n = B.scrollHeight; do {
            var r = F[j(e)];
            if (r) return c(t, r);

            if (t.push(e),
            n === e.scrollHeight) {
                var a = s(B) && s(o),
                i = a || m(B);

                if (X && d(B) || !X && i) return c(t, $())
            }
            else
                if (d(e) && m(e)) return c(t, e)
        }
        while (e = e.parentElement)
    }
    function d(e) { return e.clientHeight + 10 < e.scrollHeight }
    function s(e) {
        var t = getComputedStyle(e, "").getPropertyValue("overflow-y");
        return "hidden" !== t
    }
    function m(e) {
        var t = getComputedStyle(e, "").getPropertyValue("overflow-y");
        return "scroll" === t || "auto" === t
    }
    function f(e, t) { window.addEventListener(e, t, !1) }
    function h(e, t) { window.removeEventListener(e, t, !1) }
    function w(e, t) { return (e.nodeName || "").toLowerCase() === t.toLowerCase() }
    function p(e, t) { e = e > 0 ? 1 : -1, t = t > 0 ? 1 : -1, (Y.x !== e || Y.y !== t) && (Y.x = e, Y.y = t, q = [], R = 0) }
    function v(e) {
        return e ? (O.length || (O = [e, e, e]),
        e = Math.abs(e),
        O.push(e),
        O.shift(),
        clearTimeout(H),
        H = setTimeout(function () { window.localStorage && (localStorage.SS_deltaBuffer = O.join(",")) },
        1e3),
        !g(120) && !g(100)) : void 0
    }
    function b(e, t) { return Math.floor(e / t) == e / t }
    function g(e) { return b(O[0], e) && b(O[1], e) && b(O[2], e) }
    function y(e) {
        var t = e.target, o = !1;
        if (-1 != document.URL.indexOf("www.youtube.com/watch")) do
            if (o = t.classList && t.classList.contains("html5-video-controls")) break; while (t = t.parentNode);
        return o
    }
    function S(e) {
        var t, o, n; return e *= z.pulseScale, 1 > e ? t = e - (1 - Math.exp(-e)) : (o = Math.exp(-1),
        e -= 1, n = 1 - Math.exp(-e),
        t = o + n * (1 - o)),
        t * z.pulseNormalize
    }
    function x(e) {
        return e >= 1 ? 1 : 0 >= e ? 0 : (1 == z.pulseNormalize && (z.pulseNormalize /= S(1)),
        S(e))
    }
    function k(e) { for (var t in e) C.hasOwnProperty(t) && (z[t] = e[t]) }
    var D, M, T, E, H, C = { frameRate: 150, animationTime: 400, stepSize: 100, pulseAlgorithm: !0, pulseScale: 4, pulseNormalize: 1, accelerationDelta: 10, accelerationMax: 3, keyboardSupport: !0, arrowScroll: 50, touchpadSupport: !1, fixedBackground: !0, excluded: "" },
    z = C, L = !1, X = !1, Y = { x: 0, y: 0 },
    A = !1, B = document.documentElement, O = [], K = /^Mac/.test(navigator.platform),
    N = { left: 37, up: 38, right: 39, down: 40, spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36 },
    q = [], P = !1, R = Date.now(),
    j = function () { var e = 0; return function (t) { return t.uniqueID || (t.uniqueID = e++) } }(),
    F = {};
    window.localStorage && localStorage.SS_deltaBuffer && (O = localStorage.SS_deltaBuffer.split(","));
    var I, _ = function () { return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function (e, t, o) { window.setTimeout(e, o || 1e3 / 60) } }(),
    V = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver, $ = function () {
        var e; return function () {
            if (!e) {
                var t = document.createElement("div");
                t.style.cssText = "height:10000px;width:1px;", document.body.appendChild(t);
                { var o = document.body.scrollTop; document.documentElement.scrollTop }
                window.scrollBy(0, 1),
                e = document.body.scrollTop != o ? document.body : document.documentElement, window.scrollBy(0, -1),
                document.body.removeChild(t)
            }
            return e
        }
    }(),
    U = window.navigator.userAgent, W = /Edge/.test(U),
    G = /chrome/i.test(U) && !W, J = /safari/i.test(U) && !W, Q = /mobile/i.test(U),
    Z = (G || J) && !Q; "onwheel" in document.createElement("div") ? I = "wheel" : "onmousewheel" in document.createElement("div") && (I = "mousewheel"),
    I && Z && (f(I, r),
    f("mousedown", i),
    f("load", t)),
    k.destroy = o, window.SmoothScrollOptions && k(window.SmoothScrollOptions),
    "object" == typeof exports ? module.exports = k : window.SmoothScroll = k
}();

