// // LESS - Leaner CSS v1.1.4 // lesscss.org // // Copyright © 2009-2011, Alexis Sellier // Licensed under the Apache 2.0 License. // (function (window, undefined) { // // Stub out `require` in the browser // function require(arg) {

return window.less[arg.split('/')[1]];

};

// ecma-5.js // // – kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License // – tlrobinson Tom Robinson // dantman Daniel Friesen

// // Array // if (!Array.isArray) {

Array.isArray = function(obj) {
    return Object.prototype.toString.call(obj) === "[object Array]" ||
           (obj instanceof Array);
};

} if (!Array.prototype.forEach) {

Array.prototype.forEach =  function(block, thisObject) {
    var len = this.length >>> 0;
    for (var i = 0; i < len; i++) {
        if (i in this) {
            block.call(thisObject, this[i], i, this);
        }
    }
};

} if (!Array.prototype.map) {

Array.prototype.map = function(fun   , thisp  ) {
    var len = this.length >>> 0;
    var res = new Array(len);
    var thisp = arguments[1];

    for (var i = 0; i < len; i++) {
        if (i in this) {
            res[i] = fun.call(thisp, this[i], i, this);
        }
    }
    return res;
};

} if (!Array.prototype.filter) {

Array.prototype.filter = function (block   , thisp   ) {
    var values = [];
    var thisp = arguments[1];
    for (var i = 0; i < this.length; i++) {
        if (block.call(thisp, this[i])) {
            values.push(this[i]);
        }
    }
    return values;
};

} if (!Array.prototype.reduce) {

Array.prototype.reduce = function(fun /*, initial*/) {
    var len = this.length >>> 0;
    var i = 0;

    // no value to return if no initial value and an empty array
    if (len === 0 && arguments.length === 1) throw new TypeError();

    if (arguments.length >= 2) {
        var rv = arguments[1];
    } else {
        do {
            if (i in this) {
                rv = this[i++];
                break;
            }
            // if array contains no values, no initial value to return
            if (++i >= len) throw new TypeError();
        } while (true);
    }
    for (; i < len; i++) {
        if (i in this) {
            rv = fun.call(null, rv, this[i], i, this);
        }
    }
    return rv;
};

} if (!Array.prototype.indexOf) {

Array.prototype.indexOf = function (value /*, fromIndex */ ) {
    var length = this.length;
    var i = arguments[1] || 0;

    if (!length)     return -1;
    if (i >= length) return -1;
    if (i < 0)       i += length;

    for (; i < length; i++) {
        if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
        if (value === this[i]) return i;
    }
    return -1;
};

}

// // Object // if (!Object.keys) {

Object.keys = function (object) {
    var keys = [];
    for (var name in object) {
        if (Object.prototype.hasOwnProperty.call(object, name)) {
            keys.push(name);
        }
    }
    return keys;
};

}

// // String // if (!String.prototype.trim) {

String.prototype.trim = function () {
    return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
};

} var less, tree;

if (typeof(window) === 'undefined') {

less = exports,
tree = require('less/tree');

} else {

if (typeof(window.less) === 'undefined') { window.less = {} }
less = window.less,
tree = window.less.tree = {};

} // // less.js - parser // // A relatively straight-forward predictive parser. // There is no tokenization/lexing stage, the input is parsed // in one sweep. // // To make the parser fast enough to run in the browser, several // optimization had to be made: // // - Matching and slicing on a huge input is often cause of slowdowns. // The solution is to chunkify the input into smaller strings. // The chunks are stored in the `chunks` var, // `j` holds the current chunk index, and `current` holds // the index of the current chunk in relation to `input`. // This gives us an almost 4x speed-up. // // - In many cases, we don't need to match individual tokens; // for example, if a value doesn't hold any variables, operations // or dynamic references, the parser can effectively 'skip' it, // treating it as a literal. // An example would be '1px solid #000' - which evaluates to itself, // we don't need to know what the individual components are. // The drawback, of course is that you don't get the benefits of // syntax-checking on the CSS. This gives us a 50% speed-up in the parser, // and a smaller speed-up in the code-gen. // // // Token matching is done with the `$` function, which either takes // a terminal string or regexp, or a non-terminal function to call. // It also takes care of moving all the indices forwards. // // less.Parser = function Parser(env) {

var input,       // LeSS input string
    i,           // current index in `input`
    j,           // current chunk
    temp,        // temporarily holds a chunk's state, for backtracking
    memo,        // temporarily holds `i`, when backtracking
    furthest,    // furthest index the parser has gone to
    chunks,      // chunkified input
    current,     // index of current chunk, in `input`
    parser;

var that = this;

// This function is called after all files
// have been imported through `@import`.
var finish = function () {};

var imports = this.imports = {
    paths: env && env.paths || [],  // Search paths, when importing
    queue: [],                      // Files which haven't been imported yet
    files: {},                      // Holds the imported parse trees
    mime:  env && env.mime,         // MIME type of .less files
    push: function (path, callback) {
        var that = this;
        this.queue.push(path);

        //
        // Import a file asynchronously
        //
        less.Parser.importer(path, this.paths, function (root) {
            that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
            that.files[path] = root;                        // Store the root

            callback(root);

            if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
        }, env);
    }
};

function save()    { temp = chunks[j], memo = i, current = i }
function restore() { chunks[j] = temp, i = memo, current = i }

function sync() {
    if (i > current) {
        chunks[j] = chunks[j].slice(i - current);
        current = i;
    }
}
//
// Parse from a token, regexp or string, and move forward if match
//
function $(tok) {
    var match, args, length, c, index, endIndex, k, mem;

    //
    // Non-terminal
    //
    if (tok instanceof Function) {
        return tok.call(parser.parsers);
    //
    // Terminal
    //
    //     Either match a single character in the input,
    //     or match a regexp in the current chunk (chunk[j]).
    //
    } else if (typeof(tok) === 'string') {
        match = input.charAt(i) === tok ? tok : null;
        length = 1;
        sync ();
    } else {
        sync ();

        if (match = tok.exec(chunks[j])) {
            length = match[0].length;
        } else {
            return null;
        }
    }

    // The match is confirmed, add the match length to `i`,
    // and consume any extra white-space characters (' ' || '\n')
    // which come after that. The reason for this is that LeSS's
    // grammar is mostly white-space insensitive.
    //
    if (match) {
        mem = i += length;
        endIndex = i + chunks[j].length - length;

        while (i < endIndex) {
            c = input.charCodeAt(i);
            if (! (c === 32 || c === 10 || c === 9)) { break }
            i++;
        }
        chunks[j] = chunks[j].slice(length + (i - mem));
        current = i;

        if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }

        if(typeof(match) === 'string') {
            return match;
        } else {
            return match.length === 1 ? match[0] : match;
        }
    }
}

// Same as $(), but don't change the state of the parser,
// just return the match.
function peek(tok) {
    if (typeof(tok) === 'string') {
        return input.charAt(i) === tok;
    } else {
        if (tok.test(chunks[j])) {
            return true;
        } else {
            return false;
        }
    }
}

this.env = env = env || {};

// The optimization level dictates the thoroughness of the parser,
// the lower the number, the less nodes it will create in the tree.
// This could matter for debugging, or if you want to access
// the individual nodes in the tree.
this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;

this.env.filename = this.env.filename || null;

//
// The Parser
//
return parser = {

    imports: imports,
    //
    // Parse an input string into an abstract syntax tree,
    // call `callback` when done.
    //
    parse: function (str, callback) {
        var root, start, end, zone, line, lines, buff = [], c, error = null;

        i = j = current = furthest = 0;
        chunks = [];
        input = str.replace(/\r\n/g, '\n');

        // Split the input into chunks.
        chunks = (function (chunks) {
            var j = 0,
                skip = /[^"'`\{\}\/\(\)]+/g,
                comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
                level = 0,
                match,
                chunk = chunks[0],
                inParam,
                inString;

            for (var i = 0, c, cc; i < input.length; i++) {
                skip.lastIndex = i;
                if (match = skip.exec(input)) {
                    if (match.index === i) {
                        i += match[0].length;
                        chunk.push(match[0]);
                    }
                }
                c = input.charAt(i);
                comment.lastIndex = i;

                if (!inString && !inParam && c === '/') {
                    cc = input.charAt(i + 1);
                    if (cc === '/' || cc === '*') {
                        if (match = comment.exec(input)) {
                            if (match.index === i) {
                                i += match[0].length;
                                chunk.push(match[0]);
                                c = input.charAt(i);
                            }
                        }
                    }
                }

                if        (c === '{' && !inString && !inParam) { level ++;
                    chunk.push(c);
                } else if (c === '}' && !inString && !inParam) { level --;
                    chunk.push(c);
                    chunks[++j] = chunk = [];
                } else if (c === '(' && !inString && !inParam) {
                    chunk.push(c);
                    inParam = true;
                } else if (c === ')' && !inString && inParam) {
                    chunk.push(c);
                    inParam = false;
                } else {
                    if (c === '"' || c === "'" || c === '`') {
                        if (! inString) {
                            inString = c;
                        } else {
                            inString = inString === c ? false : inString;
                        }
                    }
                    chunk.push(c);
                }
            }
            if (level > 0) {
                throw {
                    type: 'Syntax',
                    message: "Missing closing `}`",
                    filename: env.filename
                };
            }

            return chunks.map(function (c) { return c.join('') });;
        })([[]]);

        // Start with the primary rule.
        // The whole syntax tree is held under a Ruleset node,
        // with the `root` property set to true, so no `{}` are
        // output. The callback is called when the input is parsed.
        root = new(tree.Ruleset)([], $(this.parsers.primary));
        root.root = true;

        root.toCSS = (function (evaluate) {
            var line, lines, column;

            return function (options, variables) {
                var frames = [];

                options = options || {};
                //
                // Allows setting variables with a hash, so:
                //
                //   `{ color: new(tree.Color)('#f01') }` will become:
                //
                //   new(tree.Rule)('@color',
                //     new(tree.Value)([
                //       new(tree.Expression)([
                //         new(tree.Color)('#f01')
                //       ])
                //     ])
                //   )
                //
                if (typeof(variables) === 'object' && !Array.isArray(variables)) {
                    variables = Object.keys(variables).map(function (k) {
                        var value = variables[k];

                        if (! (value instanceof tree.Value)) {
                            if (! (value instanceof tree.Expression)) {
                                value = new(tree.Expression)([value]);
                            }
                            value = new(tree.Value)([value]);
                        }
                        return new(tree.Rule)('@' + k, value, false, 0);
                    });
                    frames = [new(tree.Ruleset)(null, variables)];
                }

                try {
                    var css = evaluate.call(this, { frames: frames })
                                      .toCSS([], { compress: options.compress || false });
                } catch (e) {
                    lines = input.split('\n');
                    line = getLine(e.index);

                    for (var n = e.index, column = -1;
                             n >= 0 && input.charAt(n) !== '\n';
                             n--) { column++ }

                    throw {
                        type: e.type,
                        message: e.message,
                        filename: env.filename,
                        index: e.index,
                        line: typeof(line) === 'number' ? line + 1 : null,
                        callLine: e.call && (getLine(e.call) + 1),
                        callExtract: lines[getLine(e.call)],
                        stack: e.stack,
                        column: column,
                        extract: [
                            lines[line - 1],
                            lines[line],
                            lines[line + 1]
                        ]
                    };
                }
                if (options.compress) {
                    return css.replace(/(\s)+/g, "$1");
                } else {
                    return css;
                }

                function getLine(index) {
                    return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
                }
            };
        })(root.eval);

        // If `i` is smaller than the `input.length - 1`,
        // it means the parser wasn't able to parse the whole
        // string, so we've got a parsing error.
        //
        // We try to extract a \n delimited string,
        // showing the line where the parse error occured.
        // We split it up into two parts (the part which parsed,
        // and the part which didn't), so we can color them differently.
        if (i < input.length - 1) {
            i = furthest;
            lines = input.split('\n');
            line = (input.slice(0, i).match(/\n/g) || "").length + 1;

            for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }

            error = {
                name: "ParseError",
                message: "Syntax Error on line " + line,
                index: i,
                filename: env.filename,
                line: line,
                column: column,
                extract: [
                    lines[line - 2],
                    lines[line - 1],
                    lines[line]
                ]
            };
        }

        if (this.imports.queue.length > 0) {
            finish = function () { callback(error, root) };
        } else {
            callback(error, root);
        }
    },

    //
    // Here in, the parsing rules/functions
    //
    // The basic structure of the syntax tree generated is as follows:
    //
    //   Ruleset ->  Rule -> Value -> Expression -> Entity
    //
    // Here's some LESS code:
    //
    //    .class {
    //      color: #fff;
    //      border: 1px solid #000;
    //      width: @w + 4px;
    //      > .child {...}
    //    }
    //
    // And here's what the parse tree might look like:
    //
    //     Ruleset (Selector '.class', [
    //         Rule ("color",  Value ([Expression [Color #fff]]))
    //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
    //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
    //         Ruleset (Selector [Element '>', '.child'], [...])
    //     ])
    //
    //  In general, most rules will try to parse a token with the `$()` function, and if the return
    //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
    //  first, before parsing, that's when we use `peek()`.
    //
    parsers: {
        //
        // The `primary` rule is the *entry* and *exit* point of the parser.
        // The rules here can appear at any level of the parse tree.
        //
        // The recursive nature of the grammar is an interplay between the `block`
        // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
        // as represented by this simplified grammar:
        //
        //     primary  →  (ruleset | rule)+
        //     ruleset  →  selector+ block
        //     block    →  '{' primary '}'
        //
        // Only at one point is the primary rule not called from the
        // block rule: at the root level.
        //
        primary: function () {
            var node, root = [];

            while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
                           $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
                           || $(/^[\s\n]+/)) {
                node && root.push(node);
            }
            return root;
        },

        // We create a Comment node for CSS comments `/* */`,
        // but keep the LeSS comments `//` silent, by just skipping
        // over them.
        comment: function () {
            var comment;

            if (input.charAt(i) !== '/') return;

            if (input.charAt(i + 1) === '/') {
                return new(tree.Comment)($(/^\/\/.*/), true);
            } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
                return new(tree.Comment)(comment);
            }
        },

        //
        // Entities are tokens which can be found inside an Expression
        //
        entities: {
            //
            // A string, which supports escaping " and '
            //
            //     "milky way" 'he\'s the one!'
            //
            quoted: function () {
                var str, j = i, e;

                if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
                if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;

                e && $('~');

                if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
                    return new(tree.Quoted)(str[0], str[1] || str[2], e);
                }
            },

            //
            // A catch-all word, such as:
            //
            //     black border-collapse
            //
            keyword: function () {
                var k;
                if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
            },

            //
            // A function call
            //
            //     rgb(255, 0, 255)
            //
            // We also try to catch IE's `alpha()`, but let the `alpha` parser
            // deal with the details.
            //
            // The arguments are parsed with the `entities.arguments` parser.
            //
            call: function () {
                var name, args, index = i;

                if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;

                name = name[1].toLowerCase();

                if (name === 'url') { return null }
                else                { i += name.length }

                if (name === 'alpha') { return $(this.alpha) }

                $('('); // Parse the '(' and consume whitespace.

                args = $(this.entities.arguments);

                if (! $(')')) return;

                if (name) { return new(tree.Call)(name, args, index) }
            },
            arguments: function () {
                var args = [], arg;

                while (arg = $(this.expression)) {
                    args.push(arg);
                    if (! $(',')) { break }
                }
                return args;
            },
            literal: function () {
                return $(this.entities.dimension) ||
                       $(this.entities.color) ||
                       $(this.entities.quoted);
            },

            //
            // Parse url() tokens
            //
            // We use a specific rule for urls, because they don't really behave like
            // standard function calls. The difference is that the argument doesn't have
            // to be enclosed within a string, so it can't be parsed as an Expression.
            //
            url: function () {
                var value;

                if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
                value = $(this.entities.quoted)  || $(this.entities.variable) ||
                        $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
                if (! $(')')) throw new(Error)("missing closing ) for url()");

                return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
                                    ? value : new(tree.Anonymous)(value), imports.paths);
            },

            dataURI: function () {
                var obj;

                if ($(/^data:/)) {
                    obj         = {};
                    obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
                    obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
                    obj.base64  = $(/^;\s*base64/)          || '';
                    obj.data    = $(/^,\s*[^)]+/);

                    if (obj.data) { return obj }
                }
            },

            //
            // A Variable entity, such as `@fink`, in
            //
            //     width: @fink + 2px
            //
            // We use a different parser for variable definitions,
            // see `parsers.variable`.
            //
            variable: function () {
                var name, index = i;

                if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
                    return new(tree.Variable)(name, index);
                }
            },

            //
            // A Hexadecimal color
            //
            //     #4F3C2F
            //
            // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
            //
            color: function () {
                var rgb;

                if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
                    return new(tree.Color)(rgb[1]);
                }
            },

            //
            // A Dimension, that is, a number and a unit
            //
            //     0.5em 95%
            //
            dimension: function () {
                var value, c = input.charCodeAt(i);
                if ((c > 57 || c < 45) || c === 47) return;

                if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
                    return new(tree.Dimension)(value[1], value[2]);
                }
            },

            //
            // JavaScript code to be evaluated
            //
            //     `window.location.href`
            //
            javascript: function () {
                var str, j = i, e;

                if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
                if (input.charAt(j) !== '`') { return }

                e && $('~');

                if (str = $(/^`([^`]*)`/)) {
                    return new(tree.JavaScript)(str[1], i, e);
                }
            }
        },

        //
        // The variable part of a variable definition. Used in the `rule` parser
        //
        //     @fink:
        //
        variable: function () {
            var name;

            if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
        },

        //
        // A font size/line-height shorthand
        //
        //     small/12px
        //
        // We need to peek first, or we'll match on keywords and dimensions
        //
        shorthand: function () {
            var a, b;

            if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;

            if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
                return new(tree.Shorthand)(a, b);
            }
        },

        //
        // Mixins
        //
        mixin: {
            //
            // A Mixin call, with an optional argument list
            //
            //     #mixins > .square(#fff);
            //     .rounded(4px, black);
            //     .button;
            //
            // The `while` loop is there because mixins can be
            // namespaced, but we only support the child and descendant
            // selector for now.
            //
            call: function () {
                var elements = [], e, c, args, index = i, s = input.charAt(i);

                if (s !== '.' && s !== '#') { return }

                while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
                    elements.push(new(tree.Element)(c, e));
                    c = $('>');
                }
                $('(') && (args = $(this.entities.arguments)) && $(')');

                if (elements.length > 0 && ($(';') || peek('}'))) {
                    return new(tree.mixin.Call)(elements, args, index);
                }
            },

            //
            // A Mixin definition, with a list of parameters
            //
            //     .rounded (@radius: 2px, @color) {
            //        ...
            //     }
            //
            // Until we have a finer grained state-machine, we have to
            // do a look-ahead, to make sure we don't have a mixin call.
            // See the `rule` function for more information.
            //
            // We start by matching `.rounded (`, and then proceed on to
            // the argument list, which has optional default values.
            // We store the parameters in `params`, with a `value` key,
            // if there is a value, such as in the case of `@radius`.
            //
            // Once we've got our params list, and a closing `)`, we parse
            // the `{...}` block.
            //
            definition: function () {
                var name, params = [], match, ruleset, param, value;

                if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
                    peek(/^[^{]*(;|})/)) return;

                if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
                    name = match[1];

                    while (param = $(this.entities.variable) || $(this.entities.literal)
                                                             || $(this.entities.keyword)) {
                        // Variable
                        if (param instanceof tree.Variable) {
                            if ($(':')) {
                                if (value = $(this.expression)) {
                                    params.push({ name: param.name, value: value });
                                } else {
                                    throw new(Error)("Expected value");
                                }
                            } else {
                                params.push({ name: param.name });
                            }
                        } else {
                            params.push({ value: param });
                        }
                        if (! $(',')) { break }
                    }
                    if (! $(')')) throw new(Error)("Expected )");

                    ruleset = $(this.block);

                    if (ruleset) {
                        return new(tree.mixin.Definition)(name, params, ruleset);
                    }
                }
            }
        },

        //
        // Entities are the smallest recognized token,
        // and can be found inside a rule's value.
        //
        entity: function () {
            return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
                   $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
                   $(this.comment);
        },

        //
        // A Rule terminator. Note that we use `peek()` to check for '}',
        // because the `block` rule will be expecting it, but we still need to make sure
        // it's there, if ';' was ommitted.
        //
        end: function () {
            return $(';') || peek('}');
        },

        //
        // IE's alpha function
        //
        //     alpha(opacity=88)
        //
        alpha: function () {
            var value;

            if (! $(/^\(opacity=/i)) return;
            if (value = $(/^\d+/) || $(this.entities.variable)) {
                if (! $(')')) throw new(Error)("missing closing ) for alpha()");
                return new(tree.Alpha)(value);
            }
        },

        //
        // A Selector Element
        //
        //     div
        //     + h1
        //     #socks
        //     input[type="text"]
        //
        // Elements are the building blocks for Selectors,
        // they are made out of a `Combinator` (see combinator rule),
        // and an element name, such as a tag a class, or `*`.
        //
        element: function () {
            var e, t, c;

            c = $(this.combinator);
            e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^(?:\d*\.)?\d+%/);

            if (e) { return new(tree.Element)(c, e) }

            if (c.value && c.value[0] === '&') {
              return new(tree.Element)(c, null);
            }
        },

        //
        // Combinators combine elements together, in a Selector.
        //
        // Because our parser isn't white-space sensitive, special care
        // has to be taken, when parsing the descendant combinator, ` `,
        // as it's an empty space. We have to check the previous character
        // in the input, to see if it's a ` ` character. More info on how
        // we deal with this in *combinator.js*.
        //
        combinator: function () {
            var match, c = input.charAt(i);

            if (c === '>' || c === '+' || c === '~') {
                i++;
                while (input.charAt(i) === ' ') { i++ }
                return new(tree.Combinator)(c);
            } else if (c === '&') {
                match = '&';
                i++;
                if(input.charAt(i) === ' ') {
                    match = '& ';
                }
                while (input.charAt(i) === ' ') { i++ }
                return new(tree.Combinator)(match);
            } else if (c === ':' && input.charAt(i + 1) === ':') {
                i += 2;
                while (input.charAt(i) === ' ') { i++ }
                return new(tree.Combinator)('::');
            } else if (input.charAt(i - 1) === ' ') {
                return new(tree.Combinator)(" ");
            } else {
                return new(tree.Combinator)(null);
            }
        },

        //
        // A CSS Selector
        //
        //     .class > div + h1
        //     li a:hover
        //
        // Selectors are made out of one or more Elements, see above.
        //
        selector: function () {
            var sel, e, elements = [], c, match;

            while (e = $(this.element)) {
                c = input.charAt(i);
                elements.push(e)
                if (c === '{' || c === '}' || c === ';' || c === ',') { break }
            }

            if (elements.length > 0) { return new(tree.Selector)(elements) }
        },
        tag: function () {
            return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
        },
        attribute: function () {
            var attr = '', key, val, op;

            if (! $('[')) return;

            if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
                if ((op = $(/^[|~*$^]?=/)) &&
                    (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
                    attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
                } else { attr = key }
            }

            if (! $(']')) return;

            if (attr) { return "[" + attr + "]" }
        },

        //
        // The `block` rule is used by `ruleset` and `mixin.definition`.
        // It's a wrapper around the `primary` rule, with added `{}`.
        //
        block: function () {
            var content;

            if ($('{') && (content = $(this.primary)) && $('}')) {
                return content;
            }
        },

        //
        // div, .class, body > p {...}
        //
        ruleset: function () {
            var selectors = [], s, rules, match;
            save();

            if (match = /^([.#:% \w-]+)[\s\n]*\{/.exec(chunks[j])) {
                i += match[0].length - 1;
                selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
            } else {
                while (s = $(this.selector)) {
                    selectors.push(s);
                    $(this.comment);
                    if (! $(',')) { break }
                    $(this.comment);
                }
            }

            if (selectors.length > 0 && (rules = $(this.block))) {
                return new(tree.Ruleset)(selectors, rules);
            } else {
                // Backtrack
                furthest = i;
                restore();
            }
        },
        rule: function () {
            var name, value, c = input.charAt(i), important, match;
            save();

            if (c === '.' || c === '#' || c === '&') { return }

            if (name = $(this.variable) || $(this.property)) {
                if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
                    i += match[0].length - 1;
                    value = new(tree.Anonymous)(match[1]);
                } else if (name === "font") {
                    value = $(this.font);
                } else {
                    value = $(this.value);
                }
                important = $(this.important);

                if (value && $(this.end)) {
                    return new(tree.Rule)(name, value, important, memo);
                } else {
                    furthest = i;
                    restore();
                }
            }
        },

        //
        // An @import directive
        //
        //     @import "lib";
        //
        // Depending on our environemnt, importing is done differently:
        // In the browser, it's an XHR request, in Node, it would be a
        // file-system operation. The function used for importing is
        // stored in `import`, which we pass to the Import constructor.
        //
        "import": function () {
            var path;
            if ($(/^@import\s+/) &&
                (path = $(this.entities.quoted) || $(this.entities.url)) &&
                $(';')) {
                return new(tree.Import)(path, imports);
            }
        },

        //
        // A CSS Directive
        //
        //     @charset "utf-8";
        //
        directive: function () {
            var name, value, rules, types;

            if (input.charAt(i) !== '@') return;

            if (value = $(this['import'])) {
                return value;
            } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-)?keyframes/)) {
                types = ($(/^[^{]+/) || '').trim();
                if (rules = $(this.block)) {
                    return new(tree.Directive)(name + " " + types, rules);
                }
            } else if (name = $(/^@[-a-z]+/)) {
                if (name === '@font-face') {
                    if (rules = $(this.block)) {
                        return new(tree.Directive)(name, rules);
                    }
                } else if ((value = $(this.entity)) && $(';')) {
                    return new(tree.Directive)(name, value);
                }
            }
        },
        font: function () {
            var value = [], expression = [], weight, shorthand, font, e;

            while (e = $(this.shorthand) || $(this.entity)) {
                expression.push(e);
            }
            value.push(new(tree.Expression)(expression));

            if ($(',')) {
                while (e = $(this.expression)) {
                    value.push(e);
                    if (! $(',')) { break }
                }
            }
            return new(tree.Value)(value);
        },

        //
        // A Value is a comma-delimited list of Expressions
        //
        //     font-family: Baskerville, Georgia, serif;
        //
        // In a Rule, a Value represents everything after the `:`,
        // and before the `;`.
        //
        value: function () {
            var e, expressions = [], important;

            while (e = $(this.expression)) {
                expressions.push(e);
                if (! $(',')) { break }
            }

            if (expressions.length > 0) {
                return new(tree.Value)(expressions);
            }
        },
        important: function () {
            if (input.charAt(i) === '!') {
                return $(/^! *important/);
            }
        },
        sub: function () {
            var e;

            if ($('(') && (e = $(this.expression)) && $(')')) {
                return e;
            }
        },
        multiplication: function () {
            var m, a, op, operation;
            if (m = $(this.operand)) {
                while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
                    operation = new(tree.Operation)(op, [operation || m, a]);
                }
                return operation || m;
            }
        },
        addition: function () {
            var m, a, op, operation;
            if (m = $(this.multiplication)) {
                while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
                       (a = $(this.multiplication))) {
                    operation = new(tree.Operation)(op, [operation || m, a]);
                }
                return operation || m;
            }
        },

        //
        // An operand is anything that can be part of an operation,
        // such as a Color, or a Variable
        //
        operand: function () {
            var negate, p = input.charAt(i + 1);

            if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
            var o = $(this.sub) || $(this.entities.dimension) ||
                    $(this.entities.color) || $(this.entities.variable) ||
                    $(this.entities.call);
            return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
                          : o;
        },

        //
        // Expressions either represent mathematical operations,
        // or white-space delimited Entities.
        //
        //     1px solid black
        //     @var * 2
        //
        expression: function () {
            var e, delim, entities = [], d;

            while (e = $(this.addition) || $(this.entity)) {
                entities.push(e);
            }
            if (entities.length > 0) {
                return new(tree.Expression)(entities);
            }
        },
        property: function () {
            var name;

            if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
                return name[1];
            }
        }
    }
};

};

if (typeof(window) !== 'undefined') {

//
// Used by `@import` directives
//
less.Parser.importer = function (path, paths, callback, env) {
    if (path.charAt(0) !== '/' && paths.length > 0) {
        path = paths[0] + path;
    }
    // We pass `true` as 3rd argument, to force the reload of the import.
    // This is so we can get the syntax tree as opposed to just the CSS output,
    // as we need this to evaluate the current stylesheet.
    loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
};

}

(function (tree) {

tree.functions = {

rgb: function (r, g, b) {
    return this.rgba(r, g, b, 1.0);
},
rgba: function (r, g, b, a) {
    var rgb = [r, g, b].map(function (c) { return number(c) }),
        a = number(a);
    return new(tree.Color)(rgb, a);
},
hsl: function (h, s, l) {
    return this.hsla(h, s, l, 1.0);
},
hsla: function (h, s, l, a) {
    h = (number(h) % 360) / 360;
    s = number(s); l = number(l); a = number(a);

    var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
    var m1 = l * 2 - m2;

    return this.rgba(hue(h + 1/3) * 255,
                     hue(h)       * 255,
                     hue(h - 1/3) * 255,
                     a);

    function hue(h) {
        h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
        if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
        else if (h * 2 < 1) return m2;
        else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
        else                return m1;
    }
},
hue: function (color) {
    return new(tree.Dimension)(Math.round(color.toHSL().h));
},
saturation: function (color) {
    return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
},
lightness: function (color) {
    return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
},
alpha: function (color) {
    return new(tree.Dimension)(color.toHSL().a);
},
saturate: function (color, amount) {
    var hsl = color.toHSL();

    hsl.s += amount.value / 100;
    hsl.s = clamp(hsl.s);
    return hsla(hsl);
},
desaturate: function (color, amount) {
    var hsl = color.toHSL();

    hsl.s -= amount.value / 100;
    hsl.s = clamp(hsl.s);
    return hsla(hsl);
},
lighten: function (color, amount) {
    var hsl = color.toHSL();

    hsl.l += amount.value / 100;
    hsl.l = clamp(hsl.l);
    return hsla(hsl);
},
darken: function (color, amount) {
    var hsl = color.toHSL();

    hsl.l -= amount.value / 100;
    hsl.l = clamp(hsl.l);
    return hsla(hsl);
},
fadein: function (color, amount) {
    var hsl = color.toHSL();

    hsl.a += amount.value / 100;
    hsl.a = clamp(hsl.a);
    return hsla(hsl);
},
fadeout: function (color, amount) {
    var hsl = color.toHSL();

    hsl.a -= amount.value / 100;
    hsl.a = clamp(hsl.a);
    return hsla(hsl);
},
spin: function (color, amount) {
    var hsl = color.toHSL();
    var hue = (hsl.h + amount.value) % 360;

    hsl.h = hue < 0 ? 360 + hue : hue;

    return hsla(hsl);
},
//
// Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
// http://sass-lang.com
//
mix: function (color1, color2, weight) {
    var p = weight.value / 100.0;
    var w = p * 2 - 1;
    var a = color1.toHSL().a - color2.toHSL().a;

    var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
    var w2 = 1 - w1;

    var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
               color1.rgb[1] * w1 + color2.rgb[1] * w2,
               color1.rgb[2] * w1 + color2.rgb[2] * w2];

    var alpha = color1.alpha * p + color2.alpha * (1 - p);

    return new(tree.Color)(rgb, alpha);
},
greyscale: function (color) {
    return this.desaturate(color, new(tree.Dimension)(100));
},
e: function (str) {
    return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
},
escape: function (str) {
    return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29"));
},
'%': function (quoted /* arg, arg, ...*/) {
    var args = Array.prototype.slice.call(arguments, 1),
        str = quoted.value;

    for (var i = 0; i < args.length; i++) {
        str = str.replace(/%[sda]/i, function(token) {
            var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
            return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
        });
    }
    str = str.replace(/%%/g, '%');
    return new(tree.Quoted)('"' + str + '"', str);
},
round: function (n) {
    if (n instanceof tree.Dimension) {
        return new(tree.Dimension)(Math.round(number(n)), n.unit);
    } else if (typeof(n) === 'number') {
        return Math.round(n);
    } else {
        throw {
            error: "RuntimeError",
            message: "math functions take numbers as parameters"
        };
    }
}

};

function hsla(hsla) {

return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);

}

function number(n) {

if (n instanceof tree.Dimension) {
    return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
} else if (typeof(n) === 'number') {
    return n;
} else {
    throw {
        error: "RuntimeError",
        message: "color functions take numbers as parameters"
    };
}

}

function clamp(val) {

return Math.min(1, Math.max(0, val));

}

})(require('less/tree')); (function (tree) {

tree.Alpha = function (val) {

this.value = val;

}; tree.Alpha.prototype = {

toCSS: function () {
    return "alpha(opacity=" +
           (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
},
eval: function (env) {
    if (this.value.eval) { this.value = this.value.eval(env) }
    return this;
}

};

})(require('less/tree')); (function (tree) {

tree.Anonymous = function (string) {

this.value = string.value || string;

}; tree.Anonymous.prototype = {

toCSS: function () {
    return this.value;
},
eval: function () { return this }

};

})(require('less/tree')); (function (tree) {

// // A function call node. // tree.Call = function (name, args, index) {

this.name = name;
this.args = args;
this.index = index;

}; tree.Call.prototype = {

//
// When evaluating a function call,
// we either find the function in `tree.functions` [1],
// in which case we call it, passing the  evaluated arguments,
// or we simply print it out as it appeared originally [2].
//
// The *functions.js* file contains the built-in functions.
//
// The reason why we evaluate the arguments, is in the case where
// we try to pass a variable to a function, like: `saturate(@color)`.
// The function should receive the value, not the variable.
//
eval: function (env) {
    var args = this.args.map(function (a) { return a.eval(env) });

    if (this.name in tree.functions) { // 1.
        try {
            return tree.functions[this.name].apply(tree.functions, args);
        } catch (e) {
            throw { message: "error evaluating function `" + this.name + "`",
                    index: this.index };
        }
    } else { // 2.
        return new(tree.Anonymous)(this.name +
               "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
    }
},

toCSS: function (env) {
    return this.eval(env).toCSS();
}

};

})(require('less/tree')); (function (tree) { // // RGB Colors - ff0014, eee // tree.Color = function (rgb, a) {

//
// The end goal here, is to parse the arguments
// into an integer triplet, such as `128, 255, 0`
//
// This facilitates operations and conversions.
//
if (Array.isArray(rgb)) {
    this.rgb = rgb;
} else if (rgb.length == 6) {
    this.rgb = rgb.match(/.{2}/g).map(function (c) {
        return parseInt(c, 16);
    });
} else if (rgb.length == 8) {
    this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
    this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
        return parseInt(c, 16);
    });
} else {
    this.rgb = rgb.split('').map(function (c) {
        return parseInt(c + c, 16);
    });
}
this.alpha = typeof(a) === 'number' ? a : 1;

}; tree.Color.prototype = {

eval: function () { return this },

//
// If we have some transparency, the only way to represent it
// is via `rgba`. Otherwise, we use the hex representation,
// which has better compatibility with older browsers.
// Values are capped between `0` and `255`, rounded and zero-padded.
//
toCSS: function () {
    if (this.alpha < 1.0) {
        return "rgba(" + this.rgb.map(function (c) {
            return Math.round(c);
        }).concat(this.alpha).join(', ') + ")";
    } else {
        return '#' + this.rgb.map(function (i) {
            i = Math.round(i);
            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
            return i.length === 1 ? '0' + i : i;
        }).join('');
    }
},

//
// Operations have to be done per-channel, if not,
// channels will spill onto each other. Once we have
// our result, in the form of an integer triplet,
// we create a new Color node to hold the result.
//
operate: function (op, other) {
    var result = [];

    if (! (other instanceof tree.Color)) {
        other = other.toColor();
    }

    for (var c = 0; c < 3; c++) {
        result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
    }
    return new(tree.Color)(result, this.alpha + other.alpha);
},

toHSL: function () {
    var r = this.rgb[0] / 255,
        g = this.rgb[1] / 255,
        b = this.rgb[2] / 255,
        a = this.alpha;

    var max = Math.max(r, g, b), min = Math.min(r, g, b);
    var h, s, l = (max + min) / 2, d = max - min;

    if (max === min) {
        h = s = 0;
    } else {
        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);

        switch (max) {
            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
            case g: h = (b - r) / d + 2;               break;
            case b: h = (r - g) / d + 4;               break;
        }
        h /= 6;
    }
    return { h: h * 360, s: s, l: l, a: a };
}

};

})(require('less/tree')); (function (tree) {

tree.Comment = function (value, silent) {

this.value = value;
this.silent = !!silent;

}; tree.Comment.prototype = {

toCSS: function (env) {
    return env.compress ? '' : this.value;
},
eval: function () { return this }

};

})(require('less/tree')); (function (tree) {

// // A number with a unit // tree.Dimension = function (value, unit) {

this.value = parseFloat(value);
this.unit = unit || null;

};

tree.Dimension.prototype = {

eval: function () { return this },
toColor: function () {
    return new(tree.Color)([this.value, this.value, this.value]);
},
toCSS: function () {
    var css = this.value + this.unit;
    return css;
},

// In an operation between two Dimensions,
// we default to the first Dimension's unit,
// so `1px + 2em` will yield `3px`.
// In the future, we could implement some unit
// conversions such that `100cm + 10mm` would yield
// `101cm`.
operate: function (op, other) {
    return new(tree.Dimension)
              (tree.operate(op, this.value, other.value),
              this.unit || other.unit);
}

};

})(require('less/tree')); (function (tree) {

tree.Directive = function (name, value) {

this.name = name;
if (Array.isArray(value)) {
    this.ruleset = new(tree.Ruleset)([], value);
} else {
    this.value = value;
}

}; tree.Directive.prototype = {

toCSS: function (ctx, env) {
    if (this.ruleset) {
        this.ruleset.root = true;
        return this.name + (env.compress ? '{' : ' {\n  ') +
               this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
                           (env.compress ? '}': '\n}\n');
    } else {
        return this.name + ' ' + this.value.toCSS() + ';\n';
    }
},
eval: function (env) {
    env.frames.unshift(this);
    this.ruleset = this.ruleset && this.ruleset.eval(env);
    env.frames.shift();
    return this;
},
variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }

};

})(require('less/tree')); (function (tree) {

tree.Element = function (combinator, value) {

this.combinator = combinator instanceof tree.Combinator ?
                  combinator : new(tree.Combinator)(combinator);
this.value = value ? value.trim() : "";

}; tree.Element.prototype.toCSS = function (env) {

return this.combinator.toCSS(env || {}) + this.value;

};

tree.Combinator = function (value) {

if (value === ' ') {
    this.value = ' ';
} else if (value === '& ') {
    this.value = '& ';
} else {
    this.value = value ? value.trim() : "";
}

}; tree.Combinator.prototype.toCSS = function (env) {

return {
    ''  : '',
    ' ' : ' ',
    '&' : '',
    '& ' : ' ',
    ':' : ' :',
    '::': '::',
    '+' : env.compress ? '+' : ' + ',
    '~' : env.compress ? '~' : ' ~ ',
    '>' : env.compress ? '>' : ' > '
}[this.value];

};

})(require('less/tree')); (function (tree) {

tree.Expression = function (value) { this.value = value }; tree.Expression.prototype = {

eval: function (env) {
    if (this.value.length > 1) {
        return new(tree.Expression)(this.value.map(function (e) {
            return e.eval(env);
        }));
    } else if (this.value.length === 1) {
        return this.value[0].eval(env);
    } else {
        return this;
    }
},
toCSS: function (env) {
    return this.value.map(function (e) {
        return e.toCSS(env);
    }).join(' ');
}

};

})(require('less/tree')); (function (tree) { // // CSS @import node // // The general strategy here is that we don't want to wait // for the parsing to be completed, before we start importing // the file. That's because in the context of a browser, // most of the time will be spent waiting for the server to respond. // // On creation, we push the import path to our import queue, though // `import,push`, we also pass it a callback, which it'll call once // the file has been fetched, and parsed. // tree.Import = function (path, imports) {

var that = this;

this._path = path;

// The '.less' extension is optional
if (path instanceof tree.Quoted) {
    this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
} else {
    this.path = path.value.value || path.value;
}

this.css = /css$/.test(this.path);

// Only pre-compile .less files
if (! this.css) {
    imports.push(this.path, function (root) {
        if (! root) {
            throw new(Error)("Error parsing " + that.path);
        }
        that.root = root;
    });
}

};

// // The actual import node doesn't return anything, when converted to CSS. // The reason is that it's used at the evaluation stage, so that the rules // it imports can be treated like any other rules. // // In `eval`, we make sure all Import nodes get evaluated, recursively, so // we end up with a flat structure, which can easily be imported in the parent // ruleset. // tree.Import.prototype = {

toCSS: function () {
    if (this.css) {
        return "@import " + this._path.toCSS() + ';\n';
    } else {
        return "";
    }
},
eval: function (env) {
    var ruleset;

    if (this.css) {
        return this;
    } else {
        ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));

        for (var i = 0; i < ruleset.rules.length; i++) {
            if (ruleset.rules[i] instanceof tree.Import) {
                Array.prototype
                     .splice
                     .apply(ruleset.rules,
                            [i, 1].concat(ruleset.rules[i].eval(env)));
            }
        }
        return ruleset.rules;
    }
}

};

})(require('less/tree')); (function (tree) {

tree.JavaScript = function (string, index, escaped) {

this.escaped = escaped;
this.expression = string;
this.index = index;

}; tree.JavaScript.prototype = {

eval: function (env) {
    var result,
        that = this,
        context = {};

    var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
        return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
    });

    try {
        expression = new(Function)('return (' + expression + ')');
    } catch (e) {
        throw { message: "JavaScript evaluation error: `" + expression + "`" ,
                index: this.index };
    }

    for (var k in env.frames[0].variables()) {
        context[k.slice(1)] = {
            value: env.frames[0].variables()[k].value,
            toJS: function () {
                return this.value.eval(env).toCSS();
            }
        };
    }

    try {
        result = expression.call(context);
    } catch (e) {
        throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
                index: this.index };
    }
    if (typeof(result) === 'string') {
        return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
    } else if (Array.isArray(result)) {
        return new(tree.Anonymous)(result.join(', '));
    } else {
        return new(tree.Anonymous)(result);
    }
}

};

})(require('less/tree'));

(function (tree) {

tree.Keyword = function (value) { this.value = value }; tree.Keyword.prototype = {

eval: function () { return this },
toCSS: function () { return this.value }

};

})(require('less/tree')); (function (tree) {

tree.mixin = {}; tree.mixin.Call = function (elements, args, index) {

this.selector = new(tree.Selector)(elements);
this.arguments = args;
this.index = index;

}; tree.mixin.Call.prototype = {

eval: function (env) {
    var mixins, args, rules = [], match = false;

    for (var i = 0; i < env.frames.length; i++) {
        if ((mixins = env.frames[i].find(this.selector)).length > 0) {
            args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
            for (var m = 0; m < mixins.length; m++) {
                if (mixins[m].match(args, env)) {
                    try {
                        Array.prototype.push.apply(
                              rules, mixins[m].eval(env, this.arguments).rules);
                        match = true;
                    } catch (e) {
                        throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
                    }
                }
            }
            if (match) {
                return rules;
            } else {
                throw { message: 'No matching definition was found for `' +
                                  this.selector.toCSS().trim() + '('      +
                                  this.arguments.map(function (a) {
                                      return a.toCSS();
                                  }).join(', ') + ")`",
                        index:   this.index };
            }
        }
    }
    throw { message: this.selector.toCSS().trim() + " is undefined",
            index: this.index };
}

};

tree.mixin.Definition = function (name, params, rules) {

this.name = name;
this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
this.params = params;
this.arity = params.length;
this.rules = rules;
this._lookups = {};
this.required = params.reduce(function (count, p) {
    if (!p.name || (p.name && !p.value)) { return count + 1 }
    else                                 { return count }
}, 0);
this.parent = tree.Ruleset.prototype;
this.frames = [];

}; tree.mixin.Definition.prototype = {

toCSS:     function ()     { return "" },
variable:  function (name) { return this.parent.variable.call(this, name) },
variables: function ()     { return this.parent.variables.call(this) },
find:      function ()     { return this.parent.find.apply(this, arguments) },
rulesets:  function ()     { return this.parent.rulesets.apply(this) },

eval: function (env, args) {
    var frame = new(tree.Ruleset)(null, []), context, _arguments = [];

    for (var i = 0, val; i < this.params.length; i++) {
        if (this.params[i].name) {
            if (val = (args && args[i]) || this.params[i].value) {
                frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
            } else {
                throw { message: "wrong number of arguments for " + this.name +
                        ' (' + args.length + ' for ' + this.arity + ')' };
            }
        }
    }
    for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
        _arguments.push(args[i] || this.params[i].value);
    }
    frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));

    return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
        frames: [this, frame].concat(this.frames, env.frames)
    });
},
match: function (args, env) {
    var argsLength = (args && args.length) || 0, len;

    if (argsLength < this.required)                               { return false }
    if ((this.required > 0) && (argsLength > this.params.length)) { return false }

    len = Math.min(argsLength, this.arity);

    for (var i = 0; i < len; i++) {
        if (!this.params[i].name) {
            if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
                return false;
            }
        }
    }
    return true;
}

};

})(require('less/tree')); (function (tree) {

tree.Operation = function (op, operands) {

this.op = op.trim();
this.operands = operands;

}; tree.Operation.prototype.eval = function (env) {

var a = this.operands[0].eval(env),
    b = this.operands[1].eval(env),
    temp;

if (a instanceof tree.Dimension && b instanceof tree.Color) {
    if (this.op === '*' || this.op === '+') {
        temp = b, b = a, a = temp;
    } else {
        throw { name: "OperationError",
                message: "Can't substract or divide a color from a number" };
    }
}
return a.operate(this.op, b);

};

tree.operate = function (op, a, b) {

switch (op) {
    case '+': return a + b;
    case '-': return a - b;
    case '*': return a * b;
    case '/': return a / b;
}

};

})(require('less/tree')); (function (tree) {

tree.Quoted = function (str, content, escaped, i) {

this.escaped = escaped;
this.value = content || '';
this.quote = str.charAt(0);
this.index = i;

}; tree.Quoted.prototype = {

toCSS: function () {
    if (this.escaped) {
        return this.value;
    } else {
        return this.quote + this.value + this.quote;
    }
},
eval: function (env) {
    var that = this;
    var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
        return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
    }).replace(/@\{([\w-]+)\}/g, function (_, name) {
        var v = new(tree.Variable)('@' + name, that.index).eval(env);
        return v.value || v.toCSS();
    });
    return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
}

};

})(require('less/tree')); (function (tree) {

tree.Rule = function (name, value, important, index) {

this.name = name;
this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
this.important = important ? ' ' + important.trim() : '';
this.index = index;

if (name.charAt(0) === '@') {
    this.variable = true;
} else { this.variable = false }

}; tree.Rule.prototype.toCSS = function (env) {

if (this.variable) { return "" }
else {
    return this.name + (env.compress ? ':' : ': ') +
           this.value.toCSS(env) +
           this.important + ";";
}

};

tree.Rule.prototype.eval = function (context) {

return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);

};

tree.Shorthand = function (a, b) {

this.a = a;
this.b = b;

};

tree.Shorthand.prototype = {

toCSS: function (env) {
    return this.a.toCSS(env) + "/" + this.b.toCSS(env);
},
eval: function () { return this }

};

})(require('less/tree')); (function (tree) {

tree.Ruleset = function (selectors, rules) {

this.selectors = selectors;
this.rules = rules;
this._lookups = {};

}; tree.Ruleset.prototype = {

eval: function (env) {
    var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));

    ruleset.root = this.root;

    // push the current ruleset to the frames stack
    env.frames.unshift(ruleset);

    // Evaluate imports
    if (ruleset.root) {
        for (var i = 0; i < ruleset.rules.length; i++) {
            if (ruleset.rules[i] instanceof tree.Import) {
                Array.prototype.splice
                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
            }
        }
    }

    // Store the frames around mixin definitions,
    // so they can be evaluated like closures when the time comes.
    for (var i = 0; i < ruleset.rules.length; i++) {
        if (ruleset.rules[i] instanceof tree.mixin.Definition) {
            ruleset.rules[i].frames = env.frames.slice(0);
        }
    }

    // Evaluate mixin calls.
    for (var i = 0; i < ruleset.rules.length; i++) {
        if (ruleset.rules[i] instanceof tree.mixin.Call) {
            Array.prototype.splice
                 .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
        }
    }

    // Evaluate everything else
    for (var i = 0, rule; i < ruleset.rules.length; i++) {
        rule = ruleset.rules[i];

        if (! (rule instanceof tree.mixin.Definition)) {
            ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
        }
    }

    // Pop the stack
    env.frames.shift();

    return ruleset;
},
match: function (args) {
    return !args || args.length === 0;
},
variables: function () {
    if (this._variables) { return this._variables }
    else {
        return this._variables = this.rules.reduce(function (hash, r) {
            if (r instanceof tree.Rule && r.variable === true) {
                hash[r.name] = r;
            }
            return hash;
        }, {});
    }
},
variable: function (name) {
    return this.variables()[name];
},
rulesets: function () {
    if (this._rulesets) { return this._rulesets }
    else {
        return this._rulesets = this.rules.filter(function (r) {
            return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
        });
    }
},
find: function (selector, self) {
    self = self || this;
    var rules = [], rule, match,
        key = selector.toCSS();

    if (key in this._lookups) { return this._lookups[key] }

    this.rulesets().forEach(function (rule) {
        if (rule !== self) {
            for (var j = 0; j < rule.selectors.length; j++) {
                if (match = selector.match(rule.selectors[j])) {
                    if (selector.elements.length > 1) {
                        Array.prototype.push.apply(rules, rule.find(
                            new(tree.Selector)(selector.elements.slice(1)), self));
                    } else {
                        rules.push(rule);
                    }
                    break;
                }
            }
        }
    });
    return this._lookups[key] = rules;
},
//
// Entry point for code generation
//
//     `context` holds an array of arrays.
//
toCSS: function (context, env) {
    var css = [],      // The CSS output
        rules = [],    // node.Rule instances
        rulesets = [], // node.Ruleset instances
        paths = [],    // Current selectors
        selector,      // The fully rendered selector
        rule;

    if (! this.root) {
        if (context.length === 0) {
            paths = this.selectors.map(function (s) { return [s] });
        } else {
            this.joinSelectors( paths, context, this.selectors );
        }
    }

    // Compile rules and rulesets
    for (var i = 0; i < this.rules.length; i++) {
        rule = this.rules[i];

        if (rule.rules || (rule instanceof tree.Directive)) {
            rulesets.push(rule.toCSS(paths, env));
        } else if (rule instanceof tree.Comment) {
            if (!rule.silent) {
                if (this.root) {
                    rulesets.push(rule.toCSS(env));
                } else {
                    rules.push(rule.toCSS(env));
                }
            }
        } else {
            if (rule.toCSS && !rule.variable) {
                rules.push(rule.toCSS(env));
            } else if (rule.value && !rule.variable) {
                rules.push(rule.value.toString());
            }
        }
    } 

    rulesets = rulesets.join('');

    // If this is the root node, we don't render
    // a selector, or {}.
    // Otherwise, only output if this ruleset has rules.
    if (this.root) {
        css.push(rules.join(env.compress ? '' : '\n'));
    } else {
        if (rules.length > 0) {
            selector = paths.map(function (p) {
                return p.map(function (s) {
                    return s.toCSS(env);
                }).join('').trim();
            }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
            css.push(selector,
                    (env.compress ? '{' : ' {\n  ') +
                    rules.join(env.compress ? '' : '\n  ') +
                    (env.compress ? '}' : '\n}\n'));
        }
    }
    css.push(rulesets);

    return css.join('') + (env.compress ? '\n' : '');
},

joinSelectors: function (paths, context, selectors) {
    for (var s = 0; s < selectors.length; s++) {
        this.joinSelector(paths, context, selectors[s]);
    }
},

joinSelector: function (paths, context, selector) {
    var before = [], after = [], beforeElements = [],
        afterElements = [], hasParentSelector = false, el;

    for (var i = 0; i < selector.elements.length; i++) {
        el = selector.elements[i];
        if (el.combinator.value[0] === '&') {
            hasParentSelector = true;
        }
        if (hasParentSelector) afterElements.push(el);
        else                   beforeElements.push(el);
    }

    if (! hasParentSelector) {
        afterElements = beforeElements;
        beforeElements = [];
    }

    if (beforeElements.length > 0) {
        before.push(new(tree.Selector)(beforeElements));
    }

    if (afterElements.length > 0) {
        after.push(new(tree.Selector)(afterElements));
    }

    for (var c = 0; c < context.length; c++) {
        paths.push(before.concat(context[c]).concat(after));
    }
}

}; })(require('less/tree')); (function (tree) {

tree.Selector = function (elements) {

this.elements = elements;
if (this.elements[0].combinator.value === "") {
    this.elements[0].combinator.value = ' ';
}

}; tree.Selector.prototype.match = function (other) {

if (this.elements[0].value === other.elements[0].value) {
    return true;
} else {
    return false;
}

}; tree.Selector.prototype.toCSS = function (env) {

if (this._css) { return this._css }

return this._css = this.elements.map(function (e) {
    if (typeof(e) === 'string') {
        return ' ' + e.trim();
    } else {
        return e.toCSS(env);
    }
}).join('');

};

})(require('less/tree')); (function (tree) {

tree.URL = function (val, paths) {

if (val.data) {
    this.attrs = val;
} else {
    // Add the base path if the URL is relative and we are in the browser
    if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
        val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
    }
    this.value = val;
    this.paths = paths;
}

}; tree.URL.prototype = {

toCSS: function () {
    return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
                                : this.value.toCSS()) + ")";
},
eval: function (ctx) {
    return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
}

};

})(require('less/tree')); (function (tree) {

tree.Value = function (value) {

this.value = value;
this.is = 'value';

}; tree.Value.prototype = {

eval: function (env) {
    if (this.value.length === 1) {
        return this.value[0].eval(env);
    } else {
        return new(tree.Value)(this.value.map(function (v) {
            return v.eval(env);
        }));
    }
},
toCSS: function (env) {
    return this.value.map(function (e) {
        return e.toCSS(env);
    }).join(env.compress ? ',' : ', ');
}

};

})(require('less/tree')); (function (tree) {

tree.Variable = function (name, index) { this.name = name, this.index = index }; tree.Variable.prototype = {

eval: function (env) {
    var variable, v, name = this.name;

    if (name.indexOf('@@') == 0) {
        name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
    }

    if (variable = tree.find(env.frames, function (frame) {
        if (v = frame.variable(name)) {
            return v.value.eval(env);
        }
    })) { return variable }
    else {
        throw { message: "variable " + name + " is undefined",
                index: this.index };
    }
}

};

})(require('less/tree')); require('less/tree').find = function (obj, fun) {

for (var i = 0, r; i < obj.length; i++) {
    if (r = fun.call(obj, obj[i])) { return r }
}
return null;

}; require('less/tree').jsify = function (obj) {

if (Array.isArray(obj.value) && (obj.value.length > 1)) {
    return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
} else {
    return obj.toCSS(false);
}

}; // // browser.js - client-side engine //

var isFileProtocol = (location.protocol === 'file:' ||

location.protocol === 'chrome:'  ||
location.protocol === 'chrome-extension:'  ||
location.protocol === 'resource:');

less.env = less.env || (location.hostname == '127.0.0.1' ||

location.hostname == '0.0.0.0'   ||
location.hostname == 'localhost' ||
location.port.length > 0         ||
isFileProtocol                   ? 'development'
                                 : 'production');

// Load styles asynchronously (default: false) // // This is set to `false` by default, so that the body // doesn't start loading before the stylesheets are parsed. // Setting this to `true` can result in flickering. // less.async = false;

// Interval between watch polls less.poll = less.poll || (isFileProtocol ? 1000 : 1500);

// // Watch mode // less.watch = function () { return this.watchMode = true }; less.unwatch = function () { return this.watchMode = false };

if (less.env === 'development') {

less.optimization = 0;

if (/!watch/.test(location.hash)) {
    less.watch();
}
less.watchTimer = setInterval(function () {
    if (less.watchMode) {
        loadStyleSheets(function (root, sheet, env) {
            if (root) {
                createCSS(root.toCSS(), sheet, env.lastModified);
            }
        });
    }
}, less.poll);

} else {

less.optimization = 3;

}

var cache;

try {

cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;

} catch (_) {

cache = null;

}

// // Get all <link> tags with the 'rel' attribute set to “stylesheet/less” // var links = document.getElementsByTagName('link'); var typePattern = /^text/(x-)?less$/;

less.sheets = [];

for (var i = 0; i < links.length; i++) {

if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
   (links[i].type.match(typePattern)))) {
    less.sheets.push(links[i]);
}

}

less.refresh = function (reload) {

var startTime, endTime;
startTime = endTime = new(Date);

loadStyleSheets(function (root, sheet, env) {
    if (env.local) {
        log("loading " + sheet.href + " from cache.");
    } else {
        log("parsed " + sheet.href + " successfully.");
        createCSS(root.toCSS(), sheet, env.lastModified);
    }
    log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
    (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
    endTime = new(Date);
}, reload);

loadStyles();

}; less.refreshStyles = loadStyles;

less.refresh(less.env === 'development');

function loadStyles() {

var styles = document.getElementsByTagName('style');
for (var i = 0; i < styles.length; i++) {
    if (styles[i].type.match(typePattern)) {
        new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
            styles[i].type      = 'text/css';
            styles[i].innerHTML = tree.toCSS();
        });
    }
}

}

function loadStyleSheets(callback, reload) {

for (var i = 0; i < less.sheets.length; i++) {
    loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
}

}

function loadStyleSheet(sheet, callback, reload, remaining) {

var url       = window.location.href.replace(/[#?].*$/, '');
var href      = sheet.href.replace(/\?.*$/, '');
var css       = cache && cache.getItem(href);
var timestamp = cache && cache.getItem(href + ':timestamp');
var styles    = { css: css, timestamp: timestamp };

// Stylesheets in IE don't always return the full path
if (! /^(https?|file):/.test(href)) {
    if (href.charAt(0) == "/") {
        href = window.location.protocol + "//" + window.location.host + href;
    } else {
        href = url.slice(0, url.lastIndexOf('/') + 1) + href;
    }
}

xhr(sheet.href, sheet.type, function (data, lastModified) {
    if (!reload && styles && lastModified &&
       (new(Date)(lastModified).valueOf() ===
        new(Date)(styles.timestamp).valueOf())) {
        // Use local copy
        createCSS(styles.css, sheet);
        callback(null, sheet, { local: true, remaining: remaining });
    } else {
        // Use remote copy (re-parse)
        try {
            new(less.Parser)({
                optimization: less.optimization,
                paths: [href.replace(/[\w\.-]+$/, '')],
                mime: sheet.type
            }).parse(data, function (e, root) {
                if (e) { return error(e, href) }
                try {
                    callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
                    removeNode(document.getElementById('less-error-message:' + extractId(href)));
                } catch (e) {
                    error(e, href);
                }
            });
        } catch (e) {
            error(e, href);
        }
    }
}, function (status, url) {
    throw new(Error)("Couldn't load " + url + " (" + status + ")");
});

}

function extractId(href) {

return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
           .replace(/^\//,                 '' )  // Remove root /
           .replace(/\?.*$/,               '' )  // Remove query
           .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
           .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
           .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)

}

function createCSS(styles, sheet, lastModified) {

var css;

// Strip the query-string
var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';

// If there is no title set, use the filename, minus the extension
var id = 'less:' + (sheet.title || extractId(href));

// If the stylesheet doesn't exist, create a new node
if ((css = document.getElementById(id)) === null) {
    css = document.createElement('style');
    css.type = 'text/css';
    css.media = sheet.media || 'screen';
    css.id = id;
    document.getElementsByTagName('head')[0].appendChild(css);
}

if (css.styleSheet) { // IE
    try {
        css.styleSheet.cssText = styles;
    } catch (e) {
        throw new(Error)("Couldn't reassign styleSheet.cssText.");
    }
} else {
    (function (node) {
        if (css.childNodes.length > 0) {
            if (css.firstChild.nodeValue !== node.nodeValue) {
                css.replaceChild(node, css.firstChild);
            }
        } else {
            css.appendChild(node);
        }
    })(document.createTextNode(styles));
}

// Don't update the local store if the file wasn't modified
if (lastModified && cache) {
    log('saving ' + href + ' to cache.');
    cache.setItem(href, styles);
    cache.setItem(href + ':timestamp', lastModified);
}

}

function xhr(url, type, callback, errback) {

var xhr = getXMLHttpRequest();
var async = isFileProtocol ? false : less.async;

if (typeof(xhr.overrideMimeType) === 'function') {
    xhr.overrideMimeType('text/css');
}
xhr.open('GET', url, async);
xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
xhr.send(null);

if (isFileProtocol) {
    if (xhr.status === 0) {
        callback(xhr.responseText);
    } else {
        errback(xhr.status, url);
    }
} else if (async) {
    xhr.onreadystatechange = function () {
        if (xhr.readyState == 4) {
            handleResponse(xhr, callback, errback);
        }
    };
} else {
    handleResponse(xhr, callback, errback);
}

function handleResponse(xhr, callback, errback) {
    if (xhr.status >= 200 && xhr.status < 300) {
        callback(xhr.responseText,
                 xhr.getResponseHeader("Last-Modified"));
    } else if (typeof(errback) === 'function') {
        errback(xhr.status, url);
    }
}

}

function getXMLHttpRequest() {

if (window.XMLHttpRequest) {
    return new(XMLHttpRequest);
} else {
    try {
        return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
    } catch (e) {
        log("browser doesn't support AJAX.");
        return null;
    }
}

}

function removeNode(node) {

return node && node.parentNode.removeChild(node);

}

function log(str) {

if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }

}

function error(e, href) {

var id = 'less-error-message:' + extractId(href);

var template = ['<ul>',
                    '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
                    '<li><label>[0]</label><pre>{current}</pre></li>',
                    '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
                '</ul>'].join('\n');

var elem = document.createElement('div'), timer, content;

elem.id        = id;
elem.className = "less-error-message";

content = '<h3>'  + (e.message || 'There is an error in your .less file') +
          '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";

if (e.extract) {
    content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
        template.replace(/\[(-?\d)\]/g, function (_, i) {
            return (parseInt(e.line) + parseInt(i)) || '';
        }).replace(/\{(\d)\}/g, function (_, i) {
            return e.extract[parseInt(i)] || '';
        }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
                                  e.extract[1].slice(e.column)    + '</span>');
}
elem.innerHTML = content;

// CSS for error messages
createCSS([
    '.less-error-message ul, .less-error-message li {',
        'list-style-type: none;',
        'margin-right: 15px;',
        'padding: 4px 0;',
        'margin: 0;',
    '}',
    '.less-error-message label {',
        'font-size: 12px;',
        'margin-right: 15px;',
        'padding: 4px 0;',
        'color: #cc7777;',
    '}',
    '.less-error-message pre {',
        'color: #ee4444;',
        'padding: 4px 0;',
        'margin: 0;',
        'display: inline-block;',
    '}',
    '.less-error-message pre.ctx {',
        'color: #dd4444;',
    '}',
    '.less-error-message h3 {',
        'font-size: 20px;',
        'font-weight: bold;',
        'padding: 15px 0 5px 0;',
        'margin: 0;',
    '}',
    '.less-error-message a {',
        'color: #10a',
    '}',
    '.less-error-message .error {',
        'color: red;',
        'font-weight: bold;',
        'padding-bottom: 2px;',
        'border-bottom: 1px dashed red;',
    '}'
].join('\n'), { title: 'error-message' });

elem.style.cssText = [
    "font-family: Arial, sans-serif",
    "border: 1px solid #e00",
    "background-color: #eee",
    "border-radius: 5px",
    "-webkit-border-radius: 5px",
    "-moz-border-radius: 5px",
    "color: #e00",
    "padding: 15px",
    "margin-bottom: 15px"
].join(';');

if (less.env == 'development') {
    timer = setInterval(function () {
        if (document.body) {
            if (document.getElementById(id)) {
                document.body.replaceChild(elem, document.getElementById(id));
            } else {
                document.body.insertBefore(elem, document.body.firstChild);
            }
            clearInterval(timer);
        }
    }, 10);
}

}

})(window);