//
// Buttons
// --------------------------------------------------


// Base styles
// --------------------------------------------------

// Core styles

.uv {

    .btn {
        display: inline-block;
        padding: @padding-base-vertical @padding-base-horizontal;
        margin-bottom: 0; // For input.btn
        font-size: @font-size-base;
        font-weight: @btn-font-weight;
        line-height: @line-height-base;
        text-align: center;
        vertical-align: middle;
        cursor: pointer;
        border: 1px solid transparent;
        border-radius: @border-radius-base;
        white-space: nowrap;
        .user-select(none);

        &:focus {
            .tab-focus();
            outline: none;
            i {
                outline: 1px solid @link-color;
                opacity: 1;
            }
        }

        &:hover,
        &:focus {
            color: @btn-default-color;
            text-decoration: none;
        }

        &:active,
        &.active {
            outline: 0;
            background-image: none;
            .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
        }

        &.disabled,
        &[disabled],
        fieldset[disabled] & {
            cursor: not-allowed;
            pointer-events: none; // Future-proof disabling of clicks
            .opacity(.65);
            .box-shadow(none);
        }

    }


    // Alternate buttons
    // --------------------------------------------------

    .btn-default {
        .button-variant(@btn-default-color; @btn-default-bg; @btn-default-border);
    }
    .btn-primary {
        .button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border);
    }
    .btn-secondary {
        .button-variant(@btn-secondary-color; @btn-secondary-bg; @btn-secondary-border);
    }
    // Warning appears as orange
    .btn-warning {
        .button-variant(@btn-warning-color; @btn-warning-bg; @btn-warning-border);
    }
    // Danger and error appear as red
    .btn-danger {
        .button-variant(@btn-danger-color; @btn-danger-bg; @btn-danger-border);
    }
    // Success appears as green
    .btn-success {
        .button-variant(@btn-success-color; @btn-success-bg; @btn-success-border);
    }
    // Info appears as blue-green
    .btn-info {
        .button-variant(@btn-info-color; @btn-info-bg; @btn-info-border);
    }


    // Link buttons
    // -------------------------

    // Make a button look and behave like a link
    .btn-link {
        color: @link-color;
        font-weight: normal;
        cursor: pointer;
        border-radius: 0;

        &,
        &:active,
        &[disabled],
        fieldset[disabled] & {
            background-color: transparent;
            .box-shadow(none);
        }
        &,
        &:hover,
        &:focus,
        &:active {
            border-color: transparent;
        }
        &:hover,
        &:focus {
            color: @link-hover-color;
            text-decoration: underline;
            background-color: transparent;
        }
        &[disabled],
        fieldset[disabled] & {
            &:hover,
            &:focus {
                color: @btn-link-disabled-color;
                text-decoration: none;
            }
        }
    }


    // Button Sizes
    // --------------------------------------------------

    .btn-lg {
        // line-height: ensure even-numbered height of button next to large input
        .button-size(@padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @border-radius-large);
    }
    .btn-sm,
    .btn-xs {
        // line-height: ensure proper height of button next to small input
        .button-size(@padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @border-radius-small);
    }
    .btn-xs {
        padding: 1px 5px;
    }


    // Block button
    // --------------------------------------------------

    .btn-block {
        display: block;
        width: 100%;
        padding-left: 0;
        padding-right: 0;
    }

    // Vertically space out multiple block buttons
    .btn-block + .btn-block {
        margin-top: 5px;
    }

    // Specificity overrides
    input[type="submit"],
    input[type="reset"],
    input[type="button"] {
        &.btn-block {
            width: 100%;
        }
    }

}