.btn { /* standard buttons */
    border: 0;
    border-radius: 2px;
    font-size: 13px;
    display: inline-block;
    cursor: pointer;
    font-weight: bold;
    letter-spacing: .6px;
    line-height: 25px;
    margin: 0 2px;
    padding: 0 10px;
    position: relative;
    text-decoration: none;
    text-transform: uppercase;
}

.btn:active { /* standard buttons - clicked */
    transform: translate(0px, 5px);
    box-shadow: 0 1px 0 #666;
    color: #999;
}


.btn-sm { /* small buttons */
    border: 0;
    border-radius: 2px;
    box-shadow: 0 0 0 0 !important;
    font-size: 12px;
    display: inline-block;
    cursor: pointer;
    font-weight: bold;
    letter-spacing: .05em;
    line-height: 16px;
    margin: 0 5px 0 5px;
    padding: 2px 6px;
    position: relative;
    text-decoration: none;
    text-transform: uppercase;
}

.btn-sm:active { /* small buttons - clicked */
    box-shadow: 0px 1px 0px 0px;
    transform: translate(0px, 5px);
}


.btn-blue {
    background: #55acee;
    background: linear-gradient(to bottom, #3a8dcc, #55acee);
    border: 1px solid #3C93D5;
    box-shadow: 0 2px 0 0px #3C93D5;
    color: #eee !important;
    text-shadow: 1px 1px 1px #216294;
}

.btn-blue:hover {
    background: #6FC6FF;
    color: #fff !important;
}


.btn-green {
    background: #2ecc71;
    background: linear-gradient(to bottom, #0caf51, #2ecc71);
    border: 1px solid #15B358;
    box-shadow: 0 2px 0 0px #15B358;
    color: #eee !important;
    text-shadow: 1px 1px 1px #0d823e;
}

.btn-green:hover {
    background: #3cd27b;
    color: #fff !important;
}


.btn-red { /* red button */
    background-color: #e74c3c;
    border: 1px solid #CE3323;
    box-shadow: 0 2px 0 0px #CE3323;
    color: #eee !important;
    text-shadow: 1px 1px 1px #CE3323;
}

.btn-red:hover {
    background-color: #FF6656;
    color: #fff !important;
}


.btn-orange {
    background: #e67e22;
    background: linear-gradient(to bottom, #bb6315, #e67e22);
    border: 1px solid #CD6509;
    box-shadow: 0 2px 0 0px #CD6509;
    color: #eee !important;
    text-shadow: 1px 1px 1px #884306;
}

.btn-orange:hover {
    background: #f59d4f;
    color: #fff !important;
}


/* disabled buttons */
.btn-disabled {
    background-color: #aaa;
    border: 1px solid #777;
    box-shadow: 0 2px 0 0px #777;
    color: #ccc;
    text-shadow: 1px 1px 1px #777;
}

.btn-disabled:hover {
    box-shadow: 0 2px 0 0px #777;
    color: #ddd !important;
    cursor: not-allowed;
}

.btn-disabled:active {
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 0 0 0;
}