/*! Template based on the following projects:
* normalize.css v3.0.2 | MIT License | git.io/normalize
*
* Skeleton V2.0.4
* Copyright 2014, Dave Gamache
* www.getskeleton.com
* Free to use under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*/


html {
    font-family: sans-serif;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%
}
body {
    margin: 0
}
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section,
summary {
    display: block
}
audio,
canvas,
progress,
video {
    display: inline-block;
    vertical-align: baseline
}
audio:not([controls]) {
    display: none;
    height: 0
}
[hidden],
template {
    display: none
}
a {
    background-color: transparent
}
a:active,
a:hover {
    outline: 0
}
abbr[title] {
    border-bottom: 1px dotted
}
b,
strong {
    font-weight: 700
}
dfn {
    font-style: italic
}
h1 {
    font-size: 2em;
    margin: .67em 0
}
mark {
    background: #ff0;
    color: #000
}
small {
    font-size: 80%
}
sub,
sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline
}
sup {
    top: -.5em
}
sub {
    bottom: -.25em
}
img {
    border: 0
}
svg:not(:root) {
    overflow: hidden
}
figure {
    margin: 1em 40px
}
hr {
    box-sizing: content-box;
    height: 0
}
pre {
    overflow: auto
}
code,
kbd,
pre,
samp {
    font-family: monospace, monospace;
    font-size: 1em
}
button,
input,
optgroup,
select,
textarea {
    color: inherit;
    font: inherit;
    margin: 0
}
button {
    overflow: visible
}
button,
select {
    text-transform: none
}
button,
html input[type=button],
input[type=reset],
input[type=submit] {
    -webkit-appearance: button;
    cursor: pointer
}
button[disabled],
html input[disabled] {
    cursor: default
}
button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0
}
input {
    line-height: normal
}
input[type=checkbox],
input[type=radio] {
    box-sizing: border-box;
    padding: 0
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    height: auto
}
input[type=search] {
    -webkit-appearance: textfield;
    box-sizing: content-box
}
input[type=search]::-webkit-search-cancel-button,
input[type=search]::-webkit-search-decoration {
    -webkit-appearance: none
}
fieldset {
    border: 1px solid silver;
    margin: 0 2px;
    padding: .35em .625em .75em
}
legend {
    border: 0;
    padding: 0
}
textarea {
    overflow: auto
}
optgroup {
    font-weight: 700
}
table {
    border-collapse: collapse;
    border-spacing: 0
}
td,
th {
    padding: 0
}
body {
    font-family: Raleway, sans-serif
}
.container {
    max-width: 800px
}
.header {
    margin-top: 6rem;
    text-align: center
}
.value-prop {
    margin-top: 1rem
}
.value-props {
    margin-top: 4rem;
    margin-bottom: 4rem
}
.docs-header {
    text-transform: uppercase;
    font-size: 1.4rem;
    letter-spacing: .2rem;
    font-weight: 600
}
.docs-section {
    border-top: 1px solid #eee;
/*    padding: 4rem 0;*/
    margin-bottom: 0
}
.value-img {
    display: block;
    text-align: center;
    margin: 2.5rem auto 0
}
.example-grid .column,
.example-grid .columns {
    background: #EEE;
    text-align: center;
    border-radius: 4px;
    font-size: 1rem;
    text-transform: uppercase;
    height: 30px;
    line-height: 30px;
    margin-bottom: .75rem;
    font-weight: 600;
    letter-spacing: .1rem
}
.docs-example .row,
.docs-example form,
.docs-example.row {
    margin-bottom: 0
}
.docs-example h1,
.docs-example h2,
.docs-example h3,
.docs-example h4,
.docs-example h5,
.docs-example h6 {
    margin-bottom: 1rem
}
.heading-font-size {
    font-size: 1.2rem;
    color: #999;
    letter-spacing: normal
}
.code-example {
    margin-top: 1.5rem;
    margin-bottom: 0
}
.code-example-body {
    white-space: pre;
    word-wrap: break-word
}
.example {
    position: relative;
    margin-top: 4rem
}
.example-header {
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: .5rem
}
.example-description {
    margin-bottom: 1.5rem
}
.example-screenshot-wrapper {
    display: block;
    position: relative;
    overflow: hidden;
    border-radius: 6px;
    border: 1px solid #eee;
    height: 250px
}
.example-screenshot {
    width: 100%;
    height: auto
}
.example-screenshot.coming-soon {
    width: auto;
    position: absolute;
    background: #eee;
    top: 5px;
    right: 5px;
    bottom: 5px;
    left: 5px
}
.navbar {
    display: none;
    position: absolute
}
@media (min-width: 550px) {
    .header {
        margin-top: 10rem;
        margin-bottom: 5rem
    }
    .value-props {
        margin-top: 9rem;
        margin-bottom: 7rem
    }
    .value-img {
        margin-bottom: 1rem
    }
    .example-grid .column,
    .example-grid .columns {
        margin-bottom: 1.5rem
    }
    .docs-section {
/*        padding: 6rem 0;*/
        padding-top: 2rem;
        padding-bottom: 5rem
    }
    .example-send-yourself-copy {
        float: right;
        margin-top: 12px
    }
    .example-screenshot-wrapper {
        position: absolute;
        width: 48%;
        height: 100%;
        left: 0;
        max-height: none
    }
}
@media (min-width: 750px) {
    .header:target::before{
        height:6.5rem;
        margin-top: -6.5rem;
        display: block;
        content: "";
    }
    div.docs-section:target::before{
        height:4.5rem;
        display: block;
        content: "";
    }
    .navbar+.docs-section {
        border-top-width: 0
    }
    .navbar,
    .navbar-spacer {
        display: block;
        width: 100%;
        height: 6.5rem;
        background: rgba(239, 239, 239, 0.9);
        z-index: 99;
        border-bottom: 1px solid #888
    }
    .navbar-spacer {
        display: none
    }
    .navbar-list {
        list-style: none;
        margin-bottom: 0
    }
    .navbar-item {
        position: relative;
        float: left;
        margin-bottom: 0
    }
    .navbar-link {
        text-transform: uppercase;
        font-size: 11px;
        font-weight: 600;
        letter-spacing: .2rem;
        margin-right: 35px;
        text-decoration: none;
        line-height: 6.5rem;
        color: #222
    }
    .navbar-link.active {
        color: #33C3F0
    }
    .navbar {
        position: fixed;
        top: 0;
        left: 0
    }
    .has-docked-nav .navbar-spacer {
        display: block
    }
    .navbar>.container {
        width: 80%
    }
    .popover.open {
        display: block
    }
    .popover {
        display: none;
        position: absolute;
        background: #fff;
        border: 1px solid #eee;
        border-radius: 4px;
        top: 92%;
        left: -50%;
        -webkit-filter: drop-shadow(0 0 6px rgba(0, 0, 0, .1));
        -moz-filter: drop-shadow(0 0 6px rgba(0, 0, 0, .1));
        filter: drop-shadow(0 0 6px rgba(0, 0, 0, .1))
    }
    .popover-item:first-child .popover-link:after,
    .popover-item:first-child .popover-link:before {
        bottom: 100%;
        left: 50%;
        border: solid transparent;
        content: " ";
        height: 0;
        width: 0;
        position: absolute;
        pointer-events: none
    }
    .popover-item:first-child .popover-link:after {
        border-color: rgba(255, 255, 255, 0);
        border-bottom-color: #fff;
        border-width: 10px;
        margin-left: -10px
    }
    .popover-item:first-child .popover-link:before {
        border-color: rgba(238, 238, 238, 0);
        border-bottom-color: #eee;
        border-width: 11px;
        margin-left: -11px
    }
    .popover-list {
        padding: 0;
        margin: 0;
        list-style: none
    }
    .popover-item {
        padding: 0;
        margin: 0
    }
    .popover-link {
        position: relative;
        color: #222;
        display: block;
        padding: 8px 20px;
        border-bottom: 1px solid #eee;
        text-decoration: none;
        text-transform: uppercase;
        font-size: 1rem;
        font-weight: 600;
        text-align: center;
        letter-spacing: .1rem
    }
    .popover-item:first-child .popover-link {
        border-radius: 4px 4px 0 0
    }
    .popover-item:last-child .popover-link {
        border-radius: 0 0 4px 4px;
        border-bottom-width: 0
    }
    .popover-link:hover {
        color: #fff;
        background: #33C3F0
    }
    .popover-item:first-child .popover-link:hover:after,
    .popover-link:hover {
        border-bottom-color: #33C3F0
    }
}
.container {
    position: relative;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box
}
.column,
.columns {
    width: 100%;
    float: left;
    box-sizing: border-box
}
@media (min-width: 400px) {
    .container {
        width: 85%;
        padding: 0
    }
}
@media (min-width: 550px) {
    .container {
        width: 80%
    }
    .column,
    .columns {
        margin-left: 4%
    }
    .column:first-child,
    .columns:first-child {
        margin-left: 0
    }
    .one.column,
    .one.columns {
        width: 4.66666666667%
    }
    .two.columns {
        width: 13.3333333333%
    }
    .three.columns {
        width: 22%
    }
    .four.columns {
        width: 30.6666666667%
    }
    .five.columns {
        width: 39.3333333333%
    }
    .six.columns {
        width: 48%
    }
    .seven.columns {
        width: 56.6666666667%
    }
    .eight.columns {
        width: 65.3333333333%
    }
    .nine.columns {
        width: 74%
    }
    .ten.columns {
        width: 82.6666666667%
    }
    .eleven.columns {
        width: 91.3333333333%
    }
    .twelve.columns {
        width: 100%;
        margin-left: 0
    }
    .one-third.column {
        width: 30.6666666667%
    }
    .two-thirds.column {
        width: 65.3333333333%
    }
    .one-half.column {
        width: 48%
    }
    .offset-by-one.column,
    .offset-by-one.columns {
        margin-left: 8.66666666667%
    }
    .offset-by-two.column,
    .offset-by-two.columns {
        margin-left: 17.3333333333%
    }
    .offset-by-three.column,
    .offset-by-three.columns {
        margin-left: 26%
    }
    .offset-by-four.column,
    .offset-by-four.columns {
        margin-left: 34.6666666667%
    }
    .offset-by-five.column,
    .offset-by-five.columns {
        margin-left: 43.3333333333%
    }
    .offset-by-six.column,
    .offset-by-six.columns {
        margin-left: 52%
    }
    .offset-by-seven.column,
    .offset-by-seven.columns {
        margin-left: 60.6666666667%
    }
    .offset-by-eight.column,
    .offset-by-eight.columns {
        margin-left: 69.3333333333%
    }
    .offset-by-nine.column,
    .offset-by-nine.columns {
        margin-left: 78%
    }
    .offset-by-ten.column,
    .offset-by-ten.columns {
        margin-left: 86.6666666667%
    }
    .offset-by-eleven.column,
    .offset-by-eleven.columns {
        margin-left: 95.3333333333%
    }
    .offset-by-one-third.column,
    .offset-by-one-third.columns {
        margin-left: 34.6666666667%
    }
    .offset-by-two-thirds.column,
    .offset-by-two-thirds.columns {
        margin-left: 69.3333333333%
    }
    .offset-by-one-half.column,
    .offset-by-one-half.columns {
        margin-left: 52%
    }
}
html {
    font-size: 62.5%
}
body {
    font-size: 1.5em;
    line-height: 1.6;
    font-weight: 400;
    font-family: Raleway, HelveticaNeue, "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #222
}
h1,
h2,
h3,
h4,
h5,
h6 {
    margin-top: 0;
    margin-bottom: 2rem;
    font-weight: 300
}
h1 {
    font-size: 4rem;
    line-height: 1.2;
    letter-spacing: -.1rem
}
h2 {
    font-size: 3.6rem;
    line-height: 1.25;
    letter-spacing: -.1rem
}
h3 {
    font-size: 3rem;
    line-height: 1.3;
    letter-spacing: -.1rem
}
h4 {
    font-size: 2.4rem;
    line-height: 1.35;
    letter-spacing: -.08rem
}
h5 {
    font-size: 1.8rem;
    line-height: 1.5;
    letter-spacing: -.05rem
}
h6 {
    font-size: 1.5rem;
    line-height: 1.6;
    letter-spacing: 0
}
@media (min-width: 550px) {
    h1 {
        font-size: 5rem
    }
    h2 {
        font-size: 4.2rem
    }
    h3 {
        font-size: 3.6rem
    }
    h4 {
        font-size: 3rem
    }
    h5 {
        font-size: 2.4rem
    }
    h6 {
        font-size: 1.5rem
    }
}
p {
    margin-top: 0
}
a {
    color: #1EAEDB
}
a:hover {
    color: #0FA0CE
}
.button,
button,
input[type=button],
input[type=reset],
input[type=submit] {
    display: inline-block;
    height: 38px;
    padding: 0 30px;
    color: #555;
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    line-height: 38px;
    letter-spacing: .1rem;
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap;
    background-color: transparent;
    border-radius: 4px;
    border: 1px solid #bbb;
    cursor: pointer;
    box-sizing: border-box
}
.button:focus,
.button:hover,
button:focus,
button:hover,
input[type=button]:focus,
input[type=button]:hover,
input[type=reset]:focus,
input[type=reset]:hover,
input[type=submit]:focus,
input[type=submit]:hover {
    color: #333;
    border-color: #888;
    outline: 0
}
.button.button-primary,
button.button-primary,
input[type=button].button-primary,
input[type=reset].button-primary,
input[type=submit].button-primary {
    color: #FFF;
    background-color: #33C3F0;
    border-color: #33C3F0
}
.button.button-primary:focus,
.button.button-primary:hover,
button.button-primary:focus,
button.button-primary:hover,
input[type=button].button-primary:focus,
input[type=button].button-primary:hover,
input[type=reset].button-primary:focus,
input[type=reset].button-primary:hover,
input[type=submit].button-primary:focus,
input[type=submit].button-primary:hover {
    color: #FFF;
    background-color: #1EAEDB;
    border-color: #1EAEDB
}
input[type=email],
input[type=number],
input[type=password],
input[type=search],
input[type=tel],
input[type=text],
input[type=url],
select,
textarea {
    height: 38px;
    padding: 6px 10px;
    background-color: #fff;
    border: 1px solid #D1D1D1;
    border-radius: 4px;
    box-shadow: none;
    box-sizing: border-box
}
input[type=email],
input[type=number],
input[type=password],
input[type=search],
input[type=tel],
input[type=text],
input[type=url],
textarea {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none
}
textarea {
    min-height: 65px;
    padding-top: 6px;
    padding-bottom: 6px
}
input[type=email]:focus,
input[type=number]:focus,
input[type=password]:focus,
input[type=search]:focus,
input[type=tel]:focus,
input[type=text]:focus,
input[type=url]:focus,
select:focus,
textarea:focus {
    border: 1px solid #33C3F0;
    outline: 0
}
label,
legend {
    display: block;
    margin-bottom: .5rem;
    font-weight: 600
}
fieldset {
    padding: 0;
    border-width: 0
}
input[type=checkbox],
input[type=radio] {
    display: inline
}
label>.label-body {
    display: inline-block;
    margin-left: .5rem;
    font-weight: 400
}
ul {
    list-style: circle inside
}
ol {
    list-style: decimal inside
}
ol,
ul {
    padding-left: 0;
    margin-top: 0
}
ol ol,
ol ul,
ul ol,
ul ul {
    margin: 1.5rem 0 1.5rem 3rem;
    font-size: 90%
}
li {
    margin-bottom: 1rem
}
code {
    padding: .2rem .5rem;
    margin: 0 .2rem;
    font-size: 90%;
    white-space: nowrap;
    background: #F1F1F1;
    border: 1px solid #E1E1E1;
    border-radius: 4px
}
pre>code {
    display: block;
    padding: 1rem 1.5rem;
    white-space: pre
}
td,
th {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #E1E1E1
}
td:first-child,
th:first-child {
    padding-left: 0
}
td:last-child,
th:last-child {
    padding-right: 0
}
.button,
button {
    margin-bottom: 1rem
}
fieldset,
input,
select,
textarea {
    margin-bottom: 1.5rem
}
blockquote,
dl,
figure,
form,
ol,
p,
pre,
table,
ul {
    margin-bottom: 2.5rem
}
.u-full-width {
    width: 100%;
    box-sizing: border-box
}
.u-half-width {
    width: 50%;
    box-sizing: border-box
}
.u-max-full-width {
    max-width: 100%;
    box-sizing: border-box
}
.u-pull-right {
    float: right
}
.u-pull-left {
    float: left
}
hr {
    margin-top: 3rem;
    margin-bottom: 3.5rem;
    border-width: 0;
    border-top: 1px solid #E1E1E1
}
.container:after,
.row:after,
.u-cf {
    content: "";
    display: table;
    clear: both
}

/* CUSTOM ADDITIONS */
todo {
    color: #FF0000;
    font-style: italic;
}
ref {
    text-transform: uppercase;
    font-size: 1.2rem;
    letter-spacing: .15rem;
    font-weight: 600;
}
/* ── Hide radio inputs ───────────────────────────────────── */
#results input[type="radio"] { display: none; }

/* ── Controls ────────────────────────────────────────────── */
.res-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 4rem;
  margin: 2rem 0 2.5rem;
}
.ctrl-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.ctrl-label {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .2rem;
  text-transform: uppercase;
  color: #999;
}
.ctrl-pills {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Plain text labels — no border, no background */
.pill {
  font-size: 1.3rem;
  font-weight: 400;
  color: #999;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  padding: 0;
  border: none;
  background: none;
}
.pill:hover { color: #222; }

/* Active: bold, dark, underlined */
#r-pse-sph:checked ~ .res-controls label[for="r-pse-sph"],
#r-pse-cub:checked ~ .res-controls label[for="r-pse-cub"],
#r-pse-cyl:checked ~ .res-controls label[for="r-pse-cyl"],
#r-op-dil:checked  ~ .res-controls label[for="r-op-dil"],
#r-op-ero:checked  ~ .res-controls label[for="r-op-ero"],
#r-op-ope:checked  ~ .res-controls label[for="r-op-ope"],
#r-op-clo:checked  ~ .res-controls label[for="r-op-clo"] {
  color: #222;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Grid ────────────────────────────────────────────────── */
.res-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 2rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 750px) {
  .res-grid { grid-template-columns: 1fr; }
}

/* ── Card — no box, just image + caption like existing figures */
.res-card { }

.card-head {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 0.6rem;
}
.model-name {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .2rem;
  text-transform: uppercase;
  color: #222;
  margin: 0;
}

/* Op chip */
.op-chip {
  display: none;
  font-size: 1.1rem;
  font-weight: 400;
  color: #999;
}
#r-op-dil:checked ~ .res-grid .oc-dil,
#r-op-ero:checked ~ .res-grid .oc-ero,
#r-op-ope:checked ~ .res-grid .oc-ope,
#r-op-clo:checked ~ .res-grid .oc-clo { display: inline; }

/* ── Viewer ──────────────────────────────────────────────── */
.card-viewer {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #eee;
}

/* Input layer — fades in on hover */
.before-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}
.card-viewer:hover .before-layer { opacity: 1; }
.after-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  transition: opacity 0.2s ease;
}
.card-viewer:hover .after-layer { opacity: 0; }

.vimg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hover hint label */
.vlabel {
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .1rem;
  text-transform: uppercase;
  background: rgba(0,0,0,0.4);
  color: #fff;
  padding: 1px 7px;
  white-space: nowrap;
  pointer-events: none;
}

/* ── Result images ───────────────────────────────────────── */
.ri { display: none; width: 100%; height: 100%; object-fit: cover; }

#r-pse-sph:checked ~ #r-op-dil:checked ~ .res-grid .ri-sph-dil,
#r-pse-sph:checked ~ #r-op-ero:checked ~ .res-grid .ri-sph-ero,
#r-pse-sph:checked ~ #r-op-ope:checked ~ .res-grid .ri-sph-ope,
#r-pse-sph:checked ~ #r-op-clo:checked ~ .res-grid .ri-sph-clo,
#r-pse-cub:checked ~ #r-op-dil:checked ~ .res-grid .ri-cub-dil,
#r-pse-cub:checked ~ #r-op-ero:checked ~ .res-grid .ri-cub-ero,
#r-pse-cub:checked ~ #r-op-ope:checked ~ .res-grid .ri-cub-ope,
#r-pse-cub:checked ~ #r-op-clo:checked ~ .res-grid .ri-cub-clo,
#r-pse-cyl:checked ~ #r-op-dil:checked ~ .res-grid .ri-cyl-dil,
#r-pse-cyl:checked ~ #r-op-ero:checked ~ .res-grid .ri-cyl-ero,
#r-pse-cyl:checked ~ #r-op-ope:checked ~ .res-grid .ri-cyl-ope,
#r-pse-cyl:checked ~ #r-op-clo:checked ~ .res-grid .ri-cyl-clo { display: block; }


/* ── Card meta — plain italic caption, like existing figures  */
.card-meta {
  margin-top: 0.5rem;
  font-size: 1.2rem; 
  color: #999;
  font-style: italic;
}

/* ── Op captions ─────────────────────────────────────────── */
.op-captions { margin-top: 0.5rem; }
.op-caption {
  display: none;
  font-size: 1.5rem;
  line-height: 1.6;
  color: #555;
  margin-bottom: 2.5rem;
}
#r-op-dil:checked ~ .op-captions .cap-dil,
#r-op-ero:checked ~ .op-captions .cap-ero,
#r-op-ope:checked ~ .op-captions .cap-ope,
#r-op-clo:checked ~ .op-captions .cap-clo { display: block; }

/* ── Morpho-adaptivity figure ───────────────────────────── */
#morpho-adapt-fig input[type="radio"] { display: none; }

#morpho-adapt-fig {
  /*margin-left: 0;
  margin-right: 0;*/
  float: right;
  width: 55%;
  margin: 0 0 2rem 3rem;
}

.ma-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  width: 100%;
}
.ma-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  /*gap: 4rem;*/
}
@media (max-width: 550px) {
  .ma-grid { grid-template-columns: 1fr; }
}

.ma-card { width: 100%; }

.ma-img {
  display: none;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: #eee;
}

/* Active pill styling — mirrors the existing #results rules */
#r-ma-viz-pos:checked ~ .res-controls label[for="r-ma-viz-pos"],
#r-ma-viz-cen:checked ~ .res-controls label[for="r-ma-viz-cen"],
#r-ma-met-nor:checked ~ .res-controls label[for="r-ma-met-nor"],
#r-ma-met-cen:checked ~ .res-controls label[for="r-ma-met-cen"] {
  color: #222;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Image visibility — all four combinations */
#r-ma-viz-pos:checked ~ #r-ma-met-nor:checked ~ .ma-grid .ma-pos-nor,
#r-ma-viz-pos:checked ~ #r-ma-met-cen:checked ~ .ma-grid .ma-pos-cen,
#r-ma-viz-cen:checked ~ #r-ma-met-nor:checked ~ .ma-grid .ma-cen-nor,
#r-ma-viz-cen:checked ~ #r-ma-met-cen:checked ~ .ma-grid .ma-cen-cen { display: block; }