Apply new font size and padding

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/stylesheets/base/gl_variables.scss

@@ -42,7 +42,7 @@ $font-size-base:         $gl-font-size;
 //
 //## Define common padding and border radius sizes and more. Values based on 14px text and 1.428 line-height (~20px to start).
 
-$padding-base-vertical:     6px;
+$padding-base-vertical:     9px;
 $padding-base-horizontal:   18px;
 $component-active-color:    #fff;
 $component-active-bg:       $brand-info;
@@ -52,8 +52,8 @@ $component-active-bg:       $brand-info;
 //##
 
 $input-color:                    $text-color;
-$input-border:                   #DDD;
-$input-border-focus:             $brand-info;
+$input-border:                   #e7e9ed;
+$input-border-focus:             #7F8FA4;
 $legend-color:                   $text-color;
 
 
@@ -139,3 +139,8 @@ $kbd-bg:                      #333;
 $btn-default-color:              #7f8fa4;
 $btn-default-bg:                 #fff;
 $btn-default-border:             #e7e9ed;
+
+//== Nav
+//
+//##
+$nav-link-padding: 13px 18px;

app/assets/stylesheets/base/mixins.scss

@@ -55,9 +55,6 @@
 }
 
 @mixin md-typography {
-  font-size: 15px;
-  line-height: 1.5;
-
   img {
     max-width: 100%;
   }

app/assets/stylesheets/base/variables.scss

@@ -3,8 +3,8 @@ $hover: #FFFAF1;
 $gl-text-color: #222222;
 $gl-link-color: #446e9b;
 $nprogress-color: #c0392b;
-$gl-font-size: 14px;
-$list-font-size: 15px;
+$gl-font-size: 16px;
+$list-font-size: 16px;
 $sidebar_collapsed_width: 62px;
 $sidebar_width: 230px;
 $avatar_radius: 50%;