body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #b3cba5 0%, #f6edcd 100%);
    background-attachment: fixed;

    /* never rescale for phone */
    text-size-adjust: none;
    -webkit-text-size-adjust: none;
    -ms-text-size-adjust: none;
    -moz-text-size-adjust: none;
}

* {
    font-family: Arial, Helvetica, sans-serif;
}

.output {
    display: inline-block;
    width: 30%;
    background-color: #fffc;
    padding: 10px;
    border-radius: 8px;
    vertical-align: top;
    margin-left: 5px;
}


.difference:not(.hidden) {
    background-color: #e3e995;
}

.button_panel {
    text-align: center;
    margin-top: 5px;
}

input[type="button"] {
    background: #fff;
    border: none;
    border-radius: 8px;
    font-size: large;
    box-shadow: 0 2px 4px #0001;
}


input[type="button"]:hover:not(:disabled):not(.button-disabled) {
    background: #ffd;
    cursor: pointer;
}

input[type="button"]:disabled {
    background: #bbb;
    cursor: not-allowed;
}

input[type="button"].button-disabled {
    background: #bbb;
    cursor: help;
}

label {
    user-select: none;
}

.white-box {
    border-radius: 8px;
    background: #fff;
    padding: 15pt;
    box-shadow: 0 4px 6px #0000001a
}

.output_block {
    margin-bottom: 20px;
}

.model_name {
    font-weight: bold;
    font-size: 0.9em;
    color: #555;
    margin-bottom: 5px;
    padding: 2px 0;
}

.src_char:hover {
    background-color: #ccc;
}

.src_char.highlighted,
.tgt_char.highlighted {
    background-color: #ccc;
}

/* first suggested char */
.output_tgt :nth-child(1 of .highlighted) {
    box-shadow: inset 1.5px 0 0 0 black;
}

/* last suggested char */
.output_tgt :nth-last-child(1 of .highlighted) {
    box-shadow: inset -1.5px 0 0 0 black;
}

/* first and last suggested char at the same time */
.output_tgt :nth-child(1 of .highlighted):nth-last-child(1 of .highlighted) {
    box-shadow: inset 1.5px 0 0 0 black, inset -1.5px 0 0 0 black;
}

.highlighted_active {
    background-color: #aaf !important;
}

/* override styling for special tokens */
.special_token.highlighted {
    background-color: transparent !important;
    box-shadow: none !important;
}

.special_token:hover {
    cursor: pointer;
}

/* Error span colors */
.error_unknown {
    background-color: #ddf;
}

.error_neutral {
    background-color: #edd;
}

.error_minor {
    background-color: #fcc;
}

.error_major {
    background-color: #e88;
}

.error_critical {
    background-color: #c44;
}

/* Span toolbox */
.span_toolbox {
    background-color: white;
    padding: 5px;
    border-radius: 8px;
    box-shadow: 0 4px 6px #0005;
}

.span_toolbox_parent {
    position: absolute;
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 10px;
    min-width: max-content;
}

/* Error severity buttons */
input[type="button"].error_neutral {
    background-color: #ecc9 !important;
    width: 100%;
    text-align: center;
    border-radius: 8px;
}

input[type="button"].error_neutral:hover {
    background-color: #ecc !important;
}

input[type="button"].error_minor {
    background-color: #fcc !important;
    width: 100%;
    text-align: center;
    border-radius: 8px;
}

input[type="button"].error_minor:hover {
    background-color: #daa !important;
}

input[type="button"].error_major {
    background-color: #e88 !important;
    width: 100%;
    text-align: center;
    border-radius: 8px;
}

input[type="button"].error_major:hover {
    background-color: #c66 !important;
}

input[type="button"].error_critical {
    background-color: #c44 !important;
    width: 100%;
    text-align: center;
    border-radius: 8px;
}

input[type="button"].error_critical:hover {
    background-color: #a22 !important;
}

input[type="button"].error_delete {
    background-color: #ddd !important;
    font-size: 10pt;
    width: 100%;
    text-align: center;
    border-radius: 8px;
}

input[type="button"].error_delete:hover {
    background-color: #ccc !important;
}

#button_error_minor:hover,
#button_error_major:hover {
    opacity: 0.8;
    cursor: pointer;
}

input[type="button"][selected] {
    border-radius: 2px;
}

/* Progress bar */
#progress span {
    font-size: 0pt;
    display: inline-block;
    border-radius: 50%;
    text-align: center;
    line-height: 2em;
    margin-left: 2px;
    box-shadow: 0 1px 1px #0002;
    width: 10px;
    height: 10px;
}

#progress span:hover,
#progress span.progress_current,
#progress span.progress_incomplete:last-child {
    cursor: pointer;
    user-select: none;
    position: relative;
    top: 7.5px;
    width: 22px;
    height: 22px;
    font-size: 8pt;
    margin-left: -5px;
    margin-right: -5px;
    box-shadow: 0 1px 3px #0002;
    margin-bottom: 2px;
}

#progress span:hover {
    z-index: 100;
}

#progress span.progress_complete {
    color: white;
    background: #3b5238;
}

#progress span.progress_complete:hover {
    background: #2e3e2b;
}

#progress span.progress_current {
    background: #91b08d;
}

#progress span.progress_current:hover {
    background: #739c6f;
}

#progress span.progress_incomplete {
    background: #bbb;
    color: #555;
}

#progress span.progress_incomplete:hover {
    background: #aaa;
}

/* Validation warning indicator */
.validation_warning {
    margin-right: 5px;
    position: relative;
    top: -5px;
}

.special_token {
    font-family: monospace;
}

/* Form styling */
.form-container {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
}

.form-field {
    margin-bottom: 20px;
}

.form-label {
    font-size: 14pt;
    margin-bottom: 8px;
    color: #333;
}

.form-input {
    width: 100%;
    padding: 10px;
    font-size: 12pt;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.3);
}

@keyframes flash-red {
    0%, 100% { background-color: transparent; }
    50% { background-color: #ff6666; }
}

.flash-red-animation {
    animation: flash-red 0.5s ease-in-out 6;
    border-radius: 4px;
}