Initial version of m.css grid and components, in two styles.

diff --git a/css/m-components.css b/css/m-components.css
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+/* Globals */
+html {
+  font-size: 16px;
+  background-color: var(--background-color);
+}
+body {
+  font-family: var(--font);
+  color: var(--color);
+}
+
+/* Block elements */
+h1, h2, h3, h4, h5, h6 {
+  margin-top: 0;
+  margin-bottom: 0.5rem;
+  font-weight: var(--heading-font-weight);
+}
+p, ul, ol, dl {
+  margin-top: 0;
+  margin-bottom: 1rem;
+}
+article > header, article > footer, article section {
+  margin-bottom: 1rem;
+}
+ul, ol {
+  padding-left: 2rem;
+}
+ul ol, ul ul, ol ol, ol ul {
+  margin-bottom: 0;
+}
+main p {
+  text-indent: 1.5rem;
+  text-align: justify;
+}
+main p.m-noindent {
+  text-indent: 0;
+  text-align: initial;
+}
+blockquote {
+  margin-top: 0;
+  margin-bottom: 1rem;
+  margin-left: 1rem;
+  margin-right: 1rem;
+  padding: 1rem;
+  border-left-style: solid;
+  border-left-width: 0.25rem;
+}
+hr {
+  width: 75%;
+  border-width: 0.0625rem;
+  border-style: solid;
+  margin-bottom: 1rem;
+}
+blockquote, hr {
+  border-color: var(--line-color);
+}
+pre {
+  font-family: var(--code-font), monospace, monospace; /* https://en.wikipedia.org/wiki/User:Davidgothberg/Test59 */
+  font-size: 0.9rem;
+  margin: 0 0 1rem 0;
+  padding: 0.5rem 1rem;
+  color: var(--code-color);
+  background-color: var(--code-background-color);
+  border-radius: 0.2rem;
+  border-color: var(--line-color);
+
+  box-sizing: content-box;
+  max-width: 100%;
+  overflow-x: auto;
+}
+/* TODO: get rid of div.highlight */
+p:last-child, ul:last-child, ol:last-child, dl:last-child, blockquote:last-child, div.highligt:last-child pre {
+  margin-bottom: 0;
+}
+
+/* Inline elements */
+abbr {
+  cursor: help;
+  text-decoration: underline dotted;
+}
+sub, sup { /* https://gist.github.com/unruthless/413930 */
+  font-size: 0.75rem;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+sup { top: -0.35rem; }
+sub { bottom: -0.2rem; }
+a {
+  color: var(--link-color);
+}
+a:hover, a:focus, a:active {
+  color: var(--link-active-color);
+}
+mark {
+  padding: 0.0625rem;
+  background-color: var(--mark-background-color);
+  color: var(--mark-color);
+}
+code {
+  font-family: var(--code-font), monospace, monospace;
+  font-size: 0.9rem;
+  padding: 0.125rem;
+  color: var(--code-color);
+  background-color: var(--code-background-color);
+}
+
+/* Header navigation */
+body > header {
+  width: 100%;
+}
+body > header > nav {
+  margin-left: auto;
+  margin-right: auto;
+  color: var(--header-color);
+}
+body > header {
+  background-color: var(--header-background-color);
+}
+body > header > nav a {
+  text-decoration: var(--nav-link-decoration);
+  text-transform: var(--nav-menu-case);
+  line-height: 1.5rem;
+  display: inline-block;
+  vertical-align: middle;
+  margin-left: -0.5rem;
+  padding-left: 0.5rem;
+  border-style: solid;
+  border-color: transparent;
+  border-width: 0 0 0 0.25rem;
+  color: var(--header-link-color);
+}
+body > header > nav a#m-navbar-brand {
+  text-transform: var(--nav-brand-case);
+  font-size: 1.125rem;
+}
+body > header > nav #m-navbar-collapse {
+  padding-bottom: 1rem;
+}
+body > header > nav a#m-navbar-current {
+  color: var(--header-link-current-color);
+  border-color: var(--header-link-current-color);
+}
+body > header > nav li {
+  border-style: solid;
+  border-color: transparent;
+  border-width: 0 0 0 0.25rem;
+  margin-left: -0.5rem;
+}
+body > header > nav li a {
+  margin: 0 0 0 -0.25rem;
+  width: 100%;
+}
+body > header > nav a#m-navbar-brand, body > header > nav a#m-navbar-show, body > header > nav a#m-navbar-hide {
+  line-height: 3rem;
+  font-weight: var(--heading-font-weight);
+}
+body > header > nav ol {
+  list-style-type: none;
+  padding-left: 1rem;
+  margin: 0;
+}
+body > header > nav .m-container, body > header > nav [class*='m-col-'] {
+  padding-top: 0;
+  padding-bottom: 0;
+}
+body > header > nav a:hover, body > header > nav a:focus, body > header > nav a:active {
+  color: var(--header-link-active-color);
+}
+body > header > nav li:hover {
+  border-color: var(--header-link-active-color);
+}
+body > header > nav li a:hover, body > header > nav li a:focus, body > header > nav li a:active {
+  border-color: var(--header-link-active-color);
+  background-color: var(--header-link-active-background-color);
+}
+
+/* Header navigation -- collapsible part */
+body > header > nav #m-navbar-hide {
+  display: none;
+}
+body > header > nav:target #m-navbar-collapse {
+  display: block;
+}
+body > header > nav:target #m-navbar-show {
+  display: none;
+}
+body > header > nav:target #m-navbar-hide {
+  display: initial;
+}
+
+/* Header navigation -- 768px and up (tablets, desktops) */
+@media screen and (min-width: 768px) {
+  body > header > nav #m-navbar-show, body > header > nav #m-navbar-hide,
+  body > header > nav:target #m-navbar-show, body > header > nav:target #m-navbar-hide {
+    display: none;
+  }
+  body > header > nav #m-navbar-collapse {
+    padding-bottom: 0;
+  }
+  body > header > nav a {
+    line-height: 3rem;
+    margin-left: 0;
+    padding-left: 1rem;
+    padding-right: 1rem;
+  }
+  body > header > nav li ol {
+    background-color: var(--header-background-color);
+  }
+  body > header > nav ol ol li {
+    margin-left: 0;
+    padding-left: 0;
+    border-left-width: 0;
+  }
+  body > header > nav ol ol li a {
+    margin-left: 0;
+    padding-left: 0.75rem;
+  }
+  body > header > nav #m-navbar-collapse > .m-row > ol > li {
+    margin-left: 0;
+    border-left-width: 0;
+  }
+  body > header > nav a#m-navbar-brand, body > header > nav #m-navbar-collapse > .m-row > ol > li > a {
+    line-height: 2.75rem;
+    margin-left: 0;
+    border-width: var(--header-border-width);
+  }
+  body > header > nav #m-navbar-collapse ol {
+    padding-left: 0;
+    padding-right: 0;
+  }
+  body > header > nav #m-navbar-collapse > .m-row > ol, body > header > nav #m-navbar-collapse > .m-row > ol > li {
+    float: left;
+  }
+  body > header > nav #m-navbar-collapse ol ol {
+    z-index: 99999;
+    position: absolute;
+    visibility: hidden;
+    min-width: 7.5rem;
+  }
+  body > header > nav #m-navbar-collapse li:hover ol {
+    visibility: visible;
+  }
+}
+
+/* Footer navigation */
+body > footer {
+  width: 100%;
+}
+body > footer > nav {
+  font-size: var(--footer-font-size);
+  text-align: center;
+  color: var(--footer-color);
+  background-color: var(--footer-background-color);
+}
+body > footer > nav h3, body > footer > nav h3 a {
+  text-transform: var(--nav-heading-case);
+  font-weight: normal;
+}
+body > footer > nav ul {
+  list-style-type: none;
+  padding: 0;
+  margin: 0;
+}
+body > footer > nav a {
+  text-decoration: var(--nav-link-decoration);
+  text-transform: var(--nav-menu-case);
+  color: var(--footer-link-color);
+}
+body > footer > nav a:hover, body > footer > nav a:focus, body > footer > nav a:active {
+  color: var(--footer-link-active-color);
+}
+
+/* Article elements */
+article > header h1 {
+  font-size: 2rem;
+}
+article > header h1, article > header h1 a,
+article section > h2, article section > h2 a,
+article section > h3, article section > h3 a,
+article section > h4, article section > h4 a,
+article section > h5, article section > h5 a,
+article section > h6, article section > h6 a {
+  color: var(--article-heading-color);
+}
+article > header h1 a:hover, article > header h1 a:focus, article > header h1 a:active,
+article section > h2 a:hover, article section > h2 a:focus, article section > h2 a:active,
+article section > h3 a:hover, article section > h3 a:focus, article section > h3 a:active,
+article section > h4 a:hover, article section > h4 a:focus, article section > h4 a:active,
+article section > h5 a:hover, article section > h5 a:focus, article section > h5 a:active,
+article section > h6 a:hover, article section > h6 a:focus, article section > h6 a:active {
+  color: var(--article-heading-active-color);
+}
+article > header .m-date {
+  display: block;
+  width: 2.5rem;
+  float: left;
+  text-align: center;
+  line-height: 95%;
+  font-size: 0.75rem;
+  font-weight: normal;
+  white-space: nowrap;
+  border-right-style: solid;
+  border-right-width: 0.125rem;
+  border-color: var(--article-heading-color);
+  padding-right: 0.75rem;
+  margin-top: -0.1rem;
+  margin-right: 0.75rem;
+  margin-bottom: 0.25rem;
+}
+article > header .m-date-day {
+  display: block;
+  font-weight: bold;
+  padding-top: 0.2rem;
+  padding-bottom: 0.15rem;
+  font-size: 1.25rem;
+}
+article > header p {
+  color: var(--article-header-color);
+  font-size: 1.125rem;
+}
+article > header h1::after {
+  content: " ";
+  clear: both;
+  display: table;
+}
+article > footer {
+  color: var(--article-footer-color);
+}
+article > footer p {
+  font-style: italic;
+  font-size: 0.85rem;
+  text-indent: 0;
+}
+
+/* Article -- dynamic section headers */
+article section:target {
+  border-color: var(--article-heading-color);
+}
+article > header h1 a, article section > h2 a, article section > h3 a,
+article section > h4 a, article section > h5 a, article section > h6 a {
+  text-decoration: var(--heading-link-decoration);
+}
+article section:target {
+  margin-left: -1.0rem;
+  border-left-style: solid;
+  border-left-width: 0.25rem;
+  padding-left: 0.75rem;
+}
+article section:target pre {
+  margin-left: -1.0rem;
+  border-left-style: solid;
+  border-left-width: 0.25rem;
+  padding-left: 0.75rem;
+}
+
+/* Jumbo article */
+article.m-jumbo > header .m-jumbo-image {
+  background-size: cover;
+  background-color: var(--article-jumbo-cover-background-color);
+  background-position: center center;
+  background-repeat: no-repeat;
+  font-size: 2.5vh;
+  height: 60vh;
+  margin-bottom: 1rem;
+}
+article.m-jumbo > header .m-jumbo-cover {
+  background: linear-gradient(transparent 0%, transparent 50%, #ffffff 100%);
+  width: 100%;
+  height: 100%;
+}
+article.m-jumbo > header h1, article.m-jumbo > header h2 {
+  text-align: center;
+  font-weight: bold;
+}
+article.m-jumbo > header h1 {
+  font-size: 10vh;
+}
+article.m-jumbo > header h2 {
+  font-size: 3vh;
+}
+article.m-jumbo > header a {
+  text-decoration: none;
+}
+
+article.m-jumbo > header, article.m-jumbo > header h1, article.m-jumbo > header a {
+  color: #ffffff;
+}
+article.m-jumbo > header a:hover, article.m-jumbo > header a:focus, article.m-jumbo > header a:active {
+  color: #f0f0f0;
+}
+
+article.m-jumbo.m-inverted > header, article.m-jumbo.m-inverted > header h1, article.m-jumbo.m-inverted > header a {
+  color: #000000;
+}
+article.m-jumbo.m-inverted > header a:hover, article.m-jumbo.m-inverted > header a:focus, article.m-jumbo.m-inverted > header a:active {
+  color: #0f0f0f;
+}
+
+/* Article pagination */
+.m-article-pagination {
+  text-align: center;
+  padding: 1rem;
+}
+
+/* Right navigation panel */
+nav.m-navpanel {
+  text-align: center;
+}
+nav.m-navpanel h3 {
+  text-transform: var(--nav-heading-case);
+  font-weight: normal;
+}
+nav.m-navpanel ol {
+  text-transform: var(--nav-categories-case);
+}
+nav.m-navpanel ol, nav.m-navpanel ul {
+  list-style-type: none;
+  padding: 0;
+}
+nav.m-navpanel a {
+  color: var(--navpanel-link-color);
+  text-decoration: var(--nav-link-decoration);
+}
+nav.m-navpanel a:hover, nav.m-navpanel a:focus, nav.m-navpanel a:active {
+  color: var(--navpanel-link-active-color);
+}
+
+/* Tag cloud */
+ul.m-tagcloud li { display: inline; }
+ul.m-tagcloud li.m-tag-1 { font-size: 0.75rem; }
+ul.m-tagcloud li.m-tag-2 { font-size: 0.825rem; }
+ul.m-tagcloud li.m-tag-3 { font-size: 1rem; }
+ul.m-tagcloud li.m-tag-4 { font-size: 1.25rem; }
+ul.m-tagcloud li.m-tag-5 { font-size: 1.5rem; }
+
+/* Utility */
+div.m-scroll {
+  max-width: 100%;
+  overflow-x: auto;
+  margin-bottom: 1rem;
+}
+.m-fullwidth {
+  width: 100%;
+}
+.m-text-center {
+  text-align: center;
+}
+.m-text-left {
+  text-align: left;
+}
+.m-text-right {
+  text-align: right;
+}
+
+/* Lists */
+ul.m-unstyled, ol.m-unstyled {
+  list-style-type: none;
+  padding-left: 0;
+}
+ul[class*='m-block-'], ol[class*='m-block-'] {
+  padding-left: 0;
+}
+ul[class*='m-block-'] li, ol[class*='m-block-'] li {
+  display: inline;
+}
+ul[class*='m-block-bar-'] li:not(:last-child)::after, ol[class*='m-block-bar-'] li:not(:last-child)::after {
+  content: " | ";
+}
+@media screen and (min-width: 576px) {
+  ul.m-block-bar-s, ol.m-block-bar-s { padding-left: 2rem; }
+  ul.m-block-bar-s li, ol.m-block-bar-s li { display: list-item; }
+  ul.m-block-bar-s li:not(:last-child)::after, ol.m-block-bar-s li:not(:last-child)::after { content: ""; }
+}
+@media screen and (min-width: 768px) {
+  ul.m-block-bar-m, ol.m-block-bar-m { padding-left: 2rem; }
+  ul.m-block-bar-m li, ol.m-block-bar-m li { display: list-item; }
+  ul.m-block-bar-m li:not(:last-child)::after, ol.m-block-bar-m li:not(:last-child)::after { content: ""; }
+}
+@media screen and (min-width: 992px) {
+  ul.m-block-bar-l, ol.m-block-bar-l { padding-left: 2rem; }
+  ul.m-block-bar-l li, ol.m-block-bar-l li { display: list-item; }
+  ul.m-block-bar-l li:not(:last-child)::after, ol.m-block-bar-l li:not(:last-child)::after { content: ""; }
+}
+
+/* Special paragraph styling */
+p.m-poem {
+  text-indent: 0;
+  text-align: left;
+  margin-left: 1.5rem;
+}
+p.m-transition {
+  color: var(--line-color);
+  text-indent: 0;
+  text-align: center;
+  font-size: 2rem;
+}
+
+/* Definition list styling */
+dl.m-diary {
+  margin-bottom: 1.25rem;
+}
+dl.m-diary:last-child {
+  margin-bottom: 0.25rem;
+}
+dl.m-diary dt {
+  font-weight: bold;
+  width: 3.5rem;
+  float: left;
+  clear: both;
+  padding-top: 0.25rem;
+}
+dl.m-diary dd {
+  padding-top: 0.25rem;
+  padding-left: 3.5rem;
+}
+
+/* Note, frame, block */
+.m-note {
+  border-radius: 0.2rem;
+  padding: 1rem;
+  margin: 0 0 1rem 0;
+}
+.m-frame {
+  background-color: var(--background-color);
+  border-style: solid;
+  border-width: 0.125rem;
+  border-radius: 0.2rem;
+  border-color: var(--line-color);
+  padding: 0.875rem;
+  margin: 0 0 1rem 0;
+}
+.m-block {
+  border-style: solid;
+  border-width: 0.0625rem;
+  border-left-width: 0.25rem;
+  border-radius: 0.2rem;
+  border-color: var(--line-color);
+  padding: 1rem;
+  margin: 0 0 1rem 0;
+}
+.m-note p:last-child, .m-note ul:last-child, .m-note ol:last-child,
+.m-frame p:last-child, .m-frame ul:last-child, .m-frame ol:last-child {
+  margin-bottom: 0;
+}
+/* .m-note:last-child, .m-frame:last-child, .m-block:last-child { */
+/*   margin-bottom: 0; */
+/* } */
+
+/* Inflatable content */
+#m-container-inflatable > .m-row > [class*='m-col-'] > .m-note,
+#m-container-inflatable > .m-row > [class*='m-col-'] > .m-frame,
+#m-container-inflatable > .m-row > [class*='m-col-'] > .m-block,
+#m-container-inflatable > .m-row > [class*='m-col-'] > div > pre,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > .m-note,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > .m-frame,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > .m-block,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > div > pre,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > .m-note,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > .m-frame,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > .m-block,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > div > pre,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > .m-note,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > .m-frame,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > .m-block,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > div > pre,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > .m-note,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > .m-frame,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > .m-block,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > div > pre,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > section > .m-note,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > section > .m-frame,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > section > .m-block,
+#m-container-inflatable > .m-row > [class*='m-col-'] > section > section > section > section > section > div > pre {
+  margin: 0 -1rem 1rem -1rem;
+}
+
+/* Tables */
+table.m-table {
+  border-collapse: collapse;
+  margin-bottom: 1rem;
+}
+div.m-scroll > table.m-table:last-child {
+  margin-bottom: 0.0625rem;
+}
+table.m-table tbody tr:hover {
+  background-color: var(--line-color);
+}
+table.m-table th, table.m-table td {
+  vertical-align: top;
+  border-style: solid;
+  border-top-width: 0.0625rem;
+  border-left-width: 0;
+  border-right-width: 0;
+  border-bottom-width: 0;
+  border-color: var(--line-color);
+}
+table.m-table caption {
+  padding-bottom: 0.5rem;
+}
+table.m-table thead tr:first-child th, table.m-table thead tr:first-child td {
+  border-top-width: 0.125rem;
+}
+table.m-table thead th, table.m-table thead td {
+  border-bottom-width: 0.125rem;
+  vertical-align: bottom;
+}
+table.m-table tfoot th, table.m-table tfoot td {
+  border-top-width: 0.125rem;
+}
+table.m-table th, table.m-table td {
+  padding: 0.5rem;
+}
+table.m-table th {
+  text-align: left;
+}
+table.m-table td.m-default,
+table.m-table td.m-primary,
+table.m-table td.m-success,
+table.m-table td.m-warning,
+table.m-table td.m-danger,
+table.m-table td.m-info,
+table.m-table td.m-dim {
+  padding-left: 0.4375rem;
+  padding-right: 0.4375rem;
+  border-left-width: 0.0625rem;
+/*   border-right-width: 0.0625rem; causes horizontal scrollbar */
+}
+
+/* Colored block */
+.m-block.m-default { border-left-color: var(--line-color); }
+.m-block.m-default h3 { color: var(--default-color); }
+.m-block.m-primary { border-left-color: var(--primary-color); }
+.m-block.m-primary h3 { color: var(--primary-color); }
+.m-block.m-success { border-left-color: var(--success-color); }
+.m-block.m-success h3 { color: var(--success-color); }
+.m-block.m-warning { border-left-color: var(--warning-color); }
+.m-block.m-warning h3 { color: var(--warning-color); }
+.m-block.m-danger { border-left-color: var(--danger-color); }
+.m-block.m-danger h3 { color: var(--danger-color); }
+.m-block.m-info { border-left-color: var(--info-color); }
+.m-block.m-info h3 { color: var(--info-color); }
+.m-block.m-dim {
+  border-left-color: var(--dim-color);
+  color: var(--dim-color);
+}
+.m-block.m-dim a { color: var(--dim-link-color); }
+.m-block.m-dim a:hover, .m-block.m-dim a:focus, .m-block.m-dim a:active {
+  color: var(--dim-link-active-color);
+}
+
+/* Colored note, table coloring */
+.m-note.m-default { background-color: var(--default-filled-background-color); }
+.m-note.m-default, table.m-table tr.m-default td, table.m-table td.m-default {
+  /* No background for default table to keep the row hover */
+  color: var(--default-filled-color);
+}
+.m-note.m-primary a:hover, table.m-table tr.m-primary td a:hover, table.m-table td.m-primary a:hover,
+.m-note.m-primary a:focus, table.m-table tr.m-primary td a:focus, table.m-table td.m-primary a:focus,
+.m-note.m-primary a:active, table.m-table tr.m-primary td a:active, table.m-table td.m-primary a:active {
+  color: var(--default-filled-link-active-color);
+}
+.m-note.m-primary a, table.m-table tr.m-primary td a, table.m-table td.m-primary a {
+  color: var(--default-filled-link-color);
+}
+
+.m-note.m-primary, table.m-table tr.m-primary td, table.m-table td.m-primary {
+  background-color: var(--primary-filled-background-color);
+  color: var(--primary-filled-color);
+}
+.m-note.m-primary a, table.m-table tr.m-primary td a, table.m-table td.m-primary a {
+  color: var(--primary-filled-link-color);
+}
+.m-note.m-primary a:hover, table.m-table tr.m-primary td a:hover, table.m-table td.m-primary a:hover,
+.m-note.m-primary a:focus, table.m-table tr.m-primary td a:focus, table.m-table td.m-primary a:focus,
+.m-note.m-primary a:active, table.m-table tr.m-primary td a:active, table.m-table td.m-primary a:active {
+  color: var(--primary-filled-link-active-color);
+}
+.m-note.m-success, table.m-table tr.m-success td, table.m-table td.m-success {
+  background-color: var(--success-filled-background-color);
+  color: var(--success-filled-color);
+}
+.m-note.m-success a, table.m-table tr.m-success td a, table.m-table td.m-success a {
+  color: var(--success-filled-link-color);
+}
+.m-note.m-success a:hover, table.m-table tr.m-success td a:hover, table.m-table td.m-success a:hover,
+.m-note.m-success a:focus, table.m-table tr.m-success td a:focus, table.m-table td.m-success a:focus,
+.m-note.m-success a:active, table.m-table tr.m-success td a:active, table.m-table td.m-success a:active {
+  color: var(--success-filled-link-active-color);
+}
+.m-note.m-warning, table.m-table tr.m-warning td, table.m-table td.m-warning {
+  background-color: var(--warning-filled-background-color);
+  color: var(--warning-filled-color);
+}
+.m-note.m-warning a, table.m-table tr.m-warning td a, table.m-table td.m-warning a {
+  color: var(--warning-filled-link-color);
+}
+.m-note.m-warning a:hover, table.m-table tr.m-warning td a:hover, table.m-table td.m-warning a:hover,
+.m-note.m-warning a:focus, table.m-table tr.m-warning td a:focus, table.m-table td.m-warning a:focus,
+.m-note.m-warning a:active, table.m-table tr.m-warning td a:active, table.m-table td.m-warning a:active {
+  color: var(--warning-filled-link-active-color);
+}
+.m-note.m-danger, table.m-table tr.m-danger td, table.m-table td.m-danger {
+  background-color: var(--danger-filled-background-color);
+  color: var(--danger-filled-color);
+}
+.m-note.m-danger a, table.m-table tr.m-danger td a, table.m-table td.m-danger a {
+  color: var(--danger-filled-link-color);
+}
+.m-note.m-danger a:hover, table.m-table tr.m-danger td a:hover, table.m-table td.m-danger a:hover,
+.m-note.m-danger a:focus, table.m-table tr.m-danger td a:focus, table.m-table td.m-danger a:focus,
+.m-note.m-danger a:active, table.m-table tr.m-danger td a:active, table.m-table td.m-danger a:active {
+  color: var(--danger-filled-link-active-color);
+}
+.m-note.m-info, table.m-table tr.m-info td, table.m-table td.m-info {
+  background-color: var(--info-filled-background-color);
+  color: var(--info-filled-color);
+}
+.m-note.m-info a, table.m-table tr.m-info td a, table.m-table td.m-info a {
+  color: var(--info-filled-link-color);
+}
+.m-note.m-info a:hover, table.m-table tr.m-info td a:hover, table.m-table td.m-info a:hover,
+.m-note.m-info a:focus, table.m-table tr.m-info td a:focus, table.m-table td.m-info a:focus,
+.m-note.m-info a:active, table.m-table tr.m-info td a:active, table.m-table td.m-info a:active {
+  color: var(--info-filled-link-active-color);
+}
+.m-note.m-dim, table.m-table tr.m-dim td, table.m-table td.m-dim {
+  background-color: var(--dim-filled-background-color);
+  color: var(--dim-filled-color);
+}
+.m-note.m-dim a, table.m-table tr.m-dim td a, table.m-table td.m-dim a {
+  color: var(--dim-filled-link-color);
+}
+.m-note.m-dim a:hover, table.m-table tr.m-dim td a:hover, table.m-table td.m-dim a:hover,
+.m-note.m-dim a:focus, table.m-table tr.m-dim td a:focus, table.m-table td.m-dim a:focus,
+.m-note.m-dim a:active, table.m-table tr.m-dim td a:active, table.m-table td.m-dim a:active {
+  color: var(--dim-filled-link-active-color);
+}
+
+table.m-table tr.m-default td, table.m-table td.m-default,
+table.m-table tr.m-primary td, table.m-table td.m-primary,
+table.m-table tr.m-success td, table.m-table td.m-success,
+table.m-table tr.m-warning td, table.m-table td.m-warning,
+table.m-table tr.m-danger td, table.m-table td.m-danger,
+table.m-table tr.m-info td, table.m-table td.m-info,
+table.m-table tr.m-dim td, table.m-table td.m-dim {
+  border-color: var(--background-color);
+}
+
+/* Colored text */
+.m-text.m-default { color: var(--default-color); }
+.m-text.m-primary { color: var(--primary-color); }
+.m-text.m-success { color: var(--success-color); }
+.m-text.m-warning { color: var(--warning-color); }
+.m-text.m-danger { color: var(--danger-color); }
+.m-text.m-info { color: var(--info-color); }
+.m-text.m-dim { color: var(--dim-color); }
+.m-text.m-dim a { color: var(--dim-link-color); }
+.m-text.m-dim a:hover, .m-text.m-dim a:focus, .m-text.m-dim a:active {
+  color: var(--dim-link-active-color);
+}
+
+/* Images, image grid */
+img.m-image {
+  display: block;
+  max-width: 100%;
+  margin-left: auto;
+  margin-right: auto;
+  margin-bottom: 1rem;
+}
+.m-imagegrid {
+  margin-top: 1rem;
+  margin-bottom: 1rem;
+}
+.m-imagegrid > figure {
+  display: block;
+  float: left;
+  position: relative;
+  margin: 0;
+}
+.m-imagegrid > figure > a > div {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  border-color: #ffffff;
+  border-style: solid;
+  border-width: 0.25rem;
+  padding: 0.5rem;
+  color: transparent;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  font-size: 0.75rem;
+}
+.m-imagegrid > figure > a > div::before {
+  content: '';
+  display: inline-block;
+  height: 100%;
+  vertical-align: bottom;
+  width: 0;
+}
+.m-imagegrid > figure:hover > a > div {
+  background: linear-gradient(transparent 0%, transparent 75%, rgba(0, 0, 0, 0.85) 100%); ;
+  color: #ffffff;
+}
+.m-imagegrid > figure > a > img {
+  width: 100%;
+  height: 100%;
+}
+.m-imagegrid::after {
+  display: block;
+  content: ' ';
+  clear: both;
+}
+
+@media screen and (max-width: 767px) {
+  .m-imagegrid > figure {
+    float: none;
+    width: 100% !important;
+  }
+}
+
+/* kate: indent-width 2; */

diff --git a/css/m-dark.css b/css/m-dark.css
new file mode 100644 (file)
index 0000000..c070440
--- /dev/null
+++ b/css/m-dark.css
@@ -0,0 +1,104 @@
+@import url('m-grid.css');
+@import url('m-components.css');
+@import url('m-debug.css');
+
+:root {
+  /* Text properties */
+  --font: 'Source Sans Pro', sans-serif;
+  --code-font: 'Source Code Pro', monospace;
+  --link-decoration: underline;
+  --link-decoration-nav: none;
+  --link-decoration-heading: none;
+  --nav-brand-case: uppercase;
+  --nav-menu-case: none;
+  --nav-heading-case: uppercase;
+  --nav-categories-case: lowercase;
+  --nav-heading-case: uppercase;
+  --nav-categories-case: lowercase;
+  --heading-font-weight: bold;
+
+  /* Basics */
+  --background-color: #2f363f;
+  --color: #dcdcdc;
+  --line-color: #405363;
+  --link-color: #5b9dd9;
+  --link-active-color: #a5c9ea;
+  --mark-color: #2f83cc;
+  --mark-background-color: #c7cf2f;
+  --code-color: #e6e6e6;
+  --code-background-color: #34424d;
+
+  /* Header */
+  --header-border-width: 0 0 0.25rem 0;
+  --header-color: #ffffff;
+  --header-background-color: #22272e;
+  --header-link-color: #ffffff;
+  --header-link-active-color: #a5c9ea;
+  --header-link-current-color: #5b9dd9;
+  --header-link-active-background-color: #292f37;
+
+  /* Footer */
+  --footer-font-size: 0.85rem;
+  --footer-color: #c5c5c5;
+  --footer-background-color: #444e5c;
+  --footer-link-color: #ffffff;
+  --footer-link-active-color: #a5c9ea;
+
+  /* Article */
+  --article-header-color: #f0f0f0;
+  --article-footer-color: #c5c5c5;
+  --article-heading-color: #a5c9ea;
+  --article-heading-active-color: #dcdcdc;
+  --article-jumbo-cover-background-color: #666666;
+
+  /* Right navigation panel */
+  --navpanel-link-color: #ffffff;
+  --navpanel-link-active-color: #a5c9ea;
+
+  /* Colored components */
+  --default-color: #dcdcdc;
+  --default-filled-color: #dcdcdc;
+  --default-filled-background-color: #34424d;
+  --default-filled-link-color: #5b9dd9;
+  --default-filled-link-active-color: #a5c9ea;
+
+  --primary-color: #2f83cc;
+  --primary-filled-color: #2f363f;
+  --primary-filled-background-color: #a5c2db;
+  --primary-filled-link-color: #2a75b6;
+  --primary-filled-link-active-color: #2f363f;
+
+  --success-color: #3bd267;
+  --success-filled-color: #acecbe;
+  --success-filled-background-color: #2a703f;
+  --success-filled-link-color: #3bd267;
+  --success-filled-link-active-color: #acecbe;
+
+  --warning-color: #c7cf2f;
+  --warning-filled-color: #e9ecae;
+  --warning-filled-background-color: #6d702a;
+  --warning-filled-link-color: #b8bf2b;
+  --warning-filled-link-active-color: #e9ecae;
+
+  --danger-color: #cd3431;
+  --danger-filled-color: #ff9391;
+  --danger-filled-background-color: #702b2a;
+  --danger-filled-link-color: #d85c59;
+  --danger-filled-link-active-color: #ff9391;
+
+  --info-color: #a5c9ea;
+  --info-filled-color: #a5caeb;
+  --info-filled-background-color: #2a4f70;
+  --info-filled-link-color: #5297d7;
+  --info-filled-link-active-color: #a5caeb;
+
+  --dim-color: #747474;
+  --dim-link-color: #acacac;
+  --dim-link-active-color: #747474;
+  --dim-filled-color: #747474;
+  --dim-filled-background-color: #2d3236;
+  --dim-filled-link-color: #acacac;
+  --dim-filled-link-active-color: #747474;
+}
+
+/* kate: indent-width 2; */

diff --git a/css/m-debug.css b/css/m-debug.css
new file mode 100644 (file)
index 0000000..a009d14
--- /dev/null
+++ b/css/m-debug.css
@@ -0,0 +1,45 @@
+/* Grid container should always contain rows */
+.m-container > * {
+    background-color: #ff0000;
+}
+.m-container > .m-row {
+    background-color: transparent;
+}
+/* Grid row should always contain columns or a clearfix */
+.m-row > * {
+    background-color: #ff0000;
+}
+.m-row > [class*='m-col-'], .m-row > [class*='m-clearfix-'] {
+    background-color: transparent;
+}
+
+/* Grid container can't contain another container */
+.m-container .m-container,
+
+/* Grid column can't contain a column directly (unless it has some alignment in
+   the same level) */
+[class*='m-col-'] > [class*='m-col-t-']:not(.m-left-t):not(.m-right-t):not(.m-center-t),
+[class*='m-col-'] > [class*='m-col-s-']:not(.m-left-t):not(.m-right-t):not(.m-center-t):not(.m-left-s):not(.m-right-s):not(.m-center-s),
+[class*='m-col-'] > [class*='m-col-m-']:not(.m-left-t):not(.m-right-t):not(.m-center-t):not(.m-left-s):not(.m-right-s):not(.m-center-s):not(.m-left-m):not(.m-right-m):not(.m-center-m),
+[class*='m-col-'] > [class*='m-col-l-']:not([class*='m-left-'):not([class*='m-right-'):not([class*='m-center-']),
+
+/* m-center and m-fullwidth together is most probably a mistake */
+.m-center.m-fullwidth,
+
+/* m-scroll can't be applied to tables, as it doesn't go well with m-fullwidth */
+table.m-scroll, table.m-scroll *,
+
+/* Grid column can't be also m-note, m-block or m-frame as the margin would
+   break things */
+[class*='m-col-'].m-note, [class*='m-col-'].m-block, [class*='m-col-'].m-frame,
+
+/* It's ugly to have something styled as two different things so it's illegal */
+.m-block.m-note, .m-block.m-text, .m-note.m-frame, .m-note.m-text, .m-frame.m-text,
+
+/* It's ugly to have notes, blocks, frames or colored text in (colored) notes
+   so it's illegal */
+.m-note .m-note, .m-note .m-block, .m-note .m-frame, .m-note .m-text,
+
+/* Links shouldn't contain links */
+a a
+    { background-color: #ff0000; }

diff --git a/css/m-grid.css b/css/m-grid.css
new file mode 100644 (file)
index 0000000..661feee
--- /dev/null
+++ b/css/m-grid.css
@@ -0,0 +1,410 @@
+/* Important basics */
+*, ::before, ::after {
+  box-sizing: border-box;
+}
+body {
+  font-size: 1rem;
+  margin: 0;
+}
+
+/* 12-column layout. Inspired by Bootstrap and
+   https://www.w3schools.com/css/css_rwd_grid.asp */
+.m-container {
+  margin: auto;
+  padding: 1rem;
+}
+.m-row {
+  margin-left: -1rem;
+  margin-right: -1rem;
+}
+.m-container {
+  width: 100%;
+}
+.m-row:after { /*  */
+  content: ' ';
+  clear: both;
+  display: table;
+}
+[class*='m-col-'] {
+  position: relative;
+  padding: 1rem;
+}
+[class*='m-clearfix-']::after {
+  display: block;
+  content: ' ';
+  clear: both;
+}
+[class*='m-show-'] {
+  display: none;
+}
+[class*='m-col-'].m-left-s, [class*='m-col-'].m-right-s, [class*='m-col-'].m-center-s,
+[class*='m-col-'].m-left-m, [class*='m-col-'].m-right-m, [class*='m-col-'].m-center-m,
+[class*='m-col-'].m-left-l, [class*='m-col-'].m-right-l, [class*='m-col-'].m-center-l {
+  margin-left: -1rem;
+  margin-right: -1rem;
+}
+.m-row > [class*='m-col-'].m-left-s, .m-row > [class*='m-col-'].m-right-s, .m-row > [class*='m-col-'].m-center-s,
+.m-row > [class*='m-col-'].m-left-m, .m-row > [class*='m-col-'].m-right-m, .m-row > [class*='m-col-'].m-center-m,
+.m-row > [class*='m-col-'].m-left-l, .m-row > [class*='m-col-'].m-right-l  .m-row > [class*='m-col-'].m-center-l {
+  margin-left: 0;
+  margin-right: 0;
+}
+
+.m-container.m-nopad, [class*='m-col-'].m-nopad, .m-container.m-nopadx, [class*='m-col-'].m-nopadx {
+  padding-left: 0;
+  padding-right: 0;
+}
+.m-container.m-nopad, [class*='m-col-'].m-nopad, .m-container.m-nopady, [class*='m-col-'].m-nopady {
+  padding-top: 0;
+  padding-bottom: 0;
+}
+
+/* 12-column layout -- T (portrait phones) */
+[class*='m-col-t-'] { float: left; }
+
+[class*='m-col-t-'].m-left-t, [class*='m-col-t-'].m-right-t {
+  padding-top: 0px;
+  padding-bottom: 0px;
+}
+
+.m-left-t {
+  float: left;
+}
+.m-right-t, [class*='m-col-t-'].m-right-t {
+  float: right;
+}
+.m-center-t, [class*='m-col-t-'].m-center-t {
+  float: none;
+}
+[class*='m-col-t-'].m-left-t {
+  margin-left: -1rem;
+}
+[class*='m-col-t-'].m-right-t {
+  margin-right: -1rem;
+}
+.m-row > [class*='m-col-t-'].m-left-t {
+  margin-left: 0;
+}
+.m-row > [class*='m-col-t-'].m-right-t {
+  margin-right: 0;
+}
+.m-center-t, [class*='m-col-t-'].m-center-t {
+  margin-left: auto;
+  margin-right: auto;
+  float: none;
+}
+
+.m-col-t-1  { width: calc(1  * 100% / 12); }
+.m-col-t-2  { width: calc(2  * 100% / 12); }
+.m-col-t-3  { width: calc(3  * 100% / 12); }
+.m-col-t-4  { width: calc(4  * 100% / 12); }
+.m-col-t-5  { width: calc(5  * 100% / 12); }
+.m-col-t-6  { width: calc(6  * 100% / 12); }
+.m-col-t-7  { width: calc(7  * 100% / 12); }
+.m-col-t-8  { width: calc(8  * 100% / 12); }
+.m-col-t-9  { width: calc(9  * 100% / 12); }
+.m-col-t-10 { width: calc(10 * 100% / 12); }
+.m-col-t-11 { width: calc(11 * 100% / 12); }
+.m-col-t-12 { width: calc(12 * 100% / 12); }
+
+.m-push-t-1  { left: calc(1  * 100% / 12); }
+.m-push-t-2  { left: calc(2  * 100% / 12); }
+.m-push-t-3  { left: calc(3  * 100% / 12); }
+.m-push-t-4  { left: calc(4  * 100% / 12); }
+.m-push-t-5  { left: calc(5  * 100% / 12); }
+.m-push-t-6  { left: calc(6  * 100% / 12); }
+.m-push-t-7  { left: calc(7  * 100% / 12); }
+.m-push-t-8  { left: calc(8  * 100% / 12); }
+.m-push-t-9  { left: calc(9  * 100% / 12); }
+.m-push-t-10 { left: calc(10 * 100% / 12); }
+.m-push-t-11 { left: calc(11 * 100% / 12); }
+
+.m-pull-t-1  { right: calc(1  * 100% / 12); }
+.m-pull-t-2  { right: calc(2  * 100% / 12); }
+.m-pull-t-3  { right: calc(3  * 100% / 12); }
+.m-pull-t-4  { right: calc(4  * 100% / 12); }
+.m-pull-t-5  { right: calc(5  * 100% / 12); }
+.m-pull-t-6  { right: calc(6  * 100% / 12); }
+.m-pull-t-7  { right: calc(7  * 100% / 12); }
+.m-pull-t-8  { right: calc(8  * 100% / 12); }
+.m-pull-t-9  { right: calc(9  * 100% / 12); }
+.m-pull-t-10 { right: calc(10 * 100% / 12); }
+.m-pull-t-11 { right: calc(11 * 100% / 12); }
+
+/* 12-column layout -- S, 576px and up (landscape phones) */
+@media screen and (min-width: 576px) {
+  .m-container { width: 560px; }
+
+  #m-container-inflatable .m-col-s-10 .m-container-inflate {
+    margin-left: -10%;
+    margin-right: -10%;
+  }
+
+  [class*='m-col-s-'] { float: left; }
+
+  [class*='m-col-s-'].m-left-s, [class*='m-col-s-'].m-right-s {
+    padding-top: 0px;
+    padding-bottom: 0px;
+  }
+
+  .m-left-s {
+    float: left;
+  }
+  .m-right-s, [class*='m-col-s-'].m-right-s {
+    float: right;
+  }
+  [class*='m-col-s-'].m-left-s {
+    margin-left: -1rem;
+    margin-right: 0;
+  }
+  [class*='m-col-s-'].m-right-s {
+    margin-left: 0;
+    margin-right: -1rem;
+  }
+  .m-row > [class*='m-col-s-'].m-left-s {
+    margin-left: 0;
+  }
+  .m-row > [class*='m-col-s-'].m-right-s {
+    margin-right: 0;
+  }
+  .m-center-s, [class*='m-col-s-'].m-center-s {
+    margin-left: auto;
+    margin-right: auto;
+    float: none;
+  }
+
+  .m-col-s-1  { width: calc(1  * 100% / 12); }
+  .m-col-s-2  { width: calc(2  * 100% / 12); }
+  .m-col-s-3  { width: calc(3  * 100% / 12); }
+  .m-col-s-4  { width: calc(4  * 100% / 12); }
+  .m-col-s-5  { width: calc(5  * 100% / 12); }
+  .m-col-s-6  { width: calc(6  * 100% / 12); }
+  .m-col-s-7  { width: calc(7  * 100% / 12); }
+  .m-col-s-8  { width: calc(8  * 100% / 12); }
+  .m-col-s-9  { width: calc(9  * 100% / 12); }
+  .m-col-s-10 { width: calc(10 * 100% / 12); }
+  .m-col-s-11 { width: calc(11 * 100% / 12); }
+  .m-col-s-12 { width: calc(12 * 100% / 12); }
+
+  .m-push-s-0  { left: calc(0  * 100% / 12); }
+  .m-push-s-1  { left: calc(1  * 100% / 12); }
+  .m-push-s-2  { left: calc(2  * 100% / 12); }
+  .m-push-s-3  { left: calc(3  * 100% / 12); }
+  .m-push-s-4  { left: calc(4  * 100% / 12); }
+  .m-push-s-5  { left: calc(5  * 100% / 12); }
+  .m-push-s-6  { left: calc(6  * 100% / 12); }
+  .m-push-s-7  { left: calc(7  * 100% / 12); }
+  .m-push-s-8  { left: calc(8  * 100% / 12); }
+  .m-push-s-9  { left: calc(9  * 100% / 12); }
+  .m-push-s-10 { left: calc(10 * 100% / 12); }
+  .m-push-s-11 { left: calc(11 * 100% / 12); }
+
+  .m-pull-s-0  { right: calc(0  * 100% / 12); }
+  .m-pull-s-1  { right: calc(1  * 100% / 12); }
+  .m-pull-s-2  { right: calc(2  * 100% / 12); }
+  .m-pull-s-3  { right: calc(3  * 100% / 12); }
+  .m-pull-s-4  { right: calc(4  * 100% / 12); }
+  .m-pull-s-5  { right: calc(5  * 100% / 12); }
+  .m-pull-s-6  { right: calc(6  * 100% / 12); }
+  .m-pull-s-7  { right: calc(7  * 100% / 12); }
+  .m-pull-s-8  { right: calc(8  * 100% / 12); }
+  .m-pull-s-9  { right: calc(9  * 100% / 12); }
+  .m-pull-s-10 { right: calc(10 * 100% / 12); }
+  .m-pull-s-11 { right: calc(11 * 100% / 12); }
+
+  .m-clearfix-t::after { display: none; }
+
+  .m-hide-s { display: none; }
+  .m-show-s { display: initial; }
+
+  .m-col-s-none {
+    width: auto;
+    float: none;
+  }
+}
+
+/* 12-column layout -- M, 768px and up (tablets, small desktops) */
+@media screen and (min-width: 768px) {
+  .m-container { width: 750px; }
+
+  #m-container-inflatable .m-col-m-10 .m-container-inflate {
+    margin-left: -10%;
+    margin-right: -10%;
+  }
+
+  [class*='m-col-m-'] { float: left; }
+
+  [class*='m-col-m-'].m-left-m, [class*='m-col-m-'].m-right-m {
+    padding-top: 0px;
+    padding-bottom: 0px;
+  }
+
+  .m-left-m {
+    float: left;
+  }
+  .m-right-m, [class*='m-col-m-'].m-right-m {
+    float: right;
+  }
+  [class*='m-col-m-'].m-left-m {
+    margin-left: -1rem;
+    margin-right: 0;
+  }
+  [class*='m-col-m-'].m-right-m {
+    margin-left: 0;
+    margin-right: -1rem;
+  }
+  .m-row > [class*='m-col-m-'].m-left-m {
+    margin-left: 0;
+  }
+  .m-row > [class*='m-col-m-'].m-right-m {
+    margin-right: 0;
+  }
+  .m-center-m, [class*='m-col-m-'].m-center-m {
+    margin-left: auto;
+    margin-right: auto;
+    float: none;
+  }
+
+  .m-col-m-1  { width: calc(1  * 100% / 12); }
+  .m-col-m-2  { width: calc(2  * 100% / 12); }
+  .m-col-m-3  { width: calc(3  * 100% / 12); }
+  .m-col-m-4  { width: calc(4  * 100% / 12); }
+  .m-col-m-5  { width: calc(5  * 100% / 12); }
+  .m-col-m-6  { width: calc(6  * 100% / 12); }
+  .m-col-m-7  { width: calc(7  * 100% / 12); }
+  .m-col-m-8  { width: calc(8  * 100% / 12); }
+  .m-col-m-9  { width: calc(9  * 100% / 12); }
+  .m-col-m-10 { width: calc(10 * 100% / 12); }
+  .m-col-m-11 { width: calc(11 * 100% / 12); }
+  .m-col-m-12 { width: calc(12 * 100% / 12); }
+
+  .m-push-m-0  { left: calc(0  * 100% / 12); }
+  .m-push-m-1  { left: calc(1  * 100% / 12); }
+  .m-push-m-2  { left: calc(2  * 100% / 12); }
+  .m-push-m-3  { left: calc(3  * 100% / 12); }
+  .m-push-m-4  { left: calc(4  * 100% / 12); }
+  .m-push-m-5  { left: calc(5  * 100% / 12); }
+  .m-push-m-6  { left: calc(6  * 100% / 12); }
+  .m-push-m-7  { left: calc(7  * 100% / 12); }
+  .m-push-m-8  { left: calc(8  * 100% / 12); }
+  .m-push-m-9  { left: calc(9  * 100% / 12); }
+  .m-push-m-10 { left: calc(10 * 100% / 12); }
+  .m-push-m-11 { left: calc(11 * 100% / 12); }
+
+  .m-pull-m-0  { right: calc(0  * 100% / 12); }
+  .m-pull-m-1  { right: calc(1  * 100% / 12); }
+  .m-pull-m-2  { right: calc(2  * 100% / 12); }
+  .m-pull-m-3  { right: calc(3  * 100% / 12); }
+  .m-pull-m-4  { right: calc(4  * 100% / 12); }
+  .m-pull-m-5  { right: calc(5  * 100% / 12); }
+  .m-pull-m-6  { right: calc(6  * 100% / 12); }
+  .m-pull-m-7  { right: calc(7  * 100% / 12); }
+  .m-pull-m-8  { right: calc(8  * 100% / 12); }
+  .m-pull-m-9  { right: calc(9  * 100% / 12); }
+  .m-pull-m-10 { right: calc(10 * 100% / 12); }
+  .m-pull-m-11 { right: calc(11 * 100% / 12); }
+
+  .m-clearfix-s::after { display: none; }
+
+  .m-hide-m { display: none; }
+  .m-show-m { display: initial; }
+
+  .m-col-m-none {
+    width: auto;
+    float: none;
+  }
+}
+
+/* 12-column layout -- L, 992px and up (desktops, very large tablets) */
+@media screen and (min-width: 992px) {
+  .m-container { width: 960px; }
+
+  #m-container-inflatable .m-col-l-10 .m-container-inflate {
+    margin-left: -10%;
+    margin-right: -10%;
+  }
+
+  [class*='m-col-l-'] { float: left; }
+
+  [class*='m-col-l-'].m-left-l, [class*='m-col-l-'].m-right-l {
+    padding-top: 0px;
+    padding-bottom: 0px;
+  }
+
+  .m-left-l {
+    float: left;
+  }
+  .m-right-l, [class*='m-col-l-'].m-right-l {
+    float: right;
+  }
+  [class*='m-col-l-'].m-left-l {
+    margin-left: -1rem;
+    margin-right: 0;
+  }
+  [class*='m-col-l-'].m-right-l {
+    margin-left: 0;
+    margin-right: -1rem;
+  }
+  .m-row > [class*='m-col-l-'].m-left-l {
+    margin-left: 0;
+  }
+  .m-row > [class*='m-col-l-'].m-right-l {
+    margin-right: 0;
+  }
+  .m-center-l, [class*='m-col-l-'].m-center-l {
+    margin-left: auto;
+    margin-right: auto;
+    float: none;
+  }
+
+  .m-col-l-1  { width: calc(1  * 100% / 12); }
+  .m-col-l-2  { width: calc(2  * 100% / 12); }
+  .m-col-l-3  { width: calc(3  * 100% / 12); }
+  .m-col-l-4  { width: calc(4  * 100% / 12); }
+  .m-col-l-5  { width: calc(5  * 100% / 12); }
+  .m-col-l-6  { width: calc(6  * 100% / 12); }
+  .m-col-l-7  { width: calc(7  * 100% / 12); }
+  .m-col-l-8  { width: calc(8  * 100% / 12); }
+  .m-col-l-9  { width: calc(9  * 100% / 12); }
+  .m-col-l-10 { width: calc(10 * 100% / 12); }
+  .m-col-l-11 { width: calc(11 * 100% / 12); }
+  .m-col-l-12 { width: calc(12 * 100% / 12); }
+
+  .m-push-l-0  { left: calc(0  * 100% / 12); }
+  .m-push-l-1  { left: calc(1  * 100% / 12); }
+  .m-push-l-2  { left: calc(2  * 100% / 12); }
+  .m-push-l-3  { left: calc(3  * 100% / 12); }
+  .m-push-l-4  { left: calc(4  * 100% / 12); }
+  .m-push-l-5  { left: calc(5  * 100% / 12); }
+  .m-push-l-6  { left: calc(6  * 100% / 12); }
+  .m-push-l-7  { left: calc(7  * 100% / 12); }
+  .m-push-l-8  { left: calc(8  * 100% / 12); }
+  .m-push-l-9  { left: calc(9  * 100% / 12); }
+  .m-push-l-10 { left: calc(10 * 100% / 12); }
+  .m-push-l-11 { left: calc(11 * 100% / 12); }
+
+  .m-pull-l-0  { right: calc(0  * 100% / 12); }
+  .m-pull-l-1  { right: calc(1  * 100% / 12); }
+  .m-pull-l-2  { right: calc(2  * 100% / 12); }
+  .m-pull-l-3  { right: calc(3  * 100% / 12); }
+  .m-pull-l-4  { right: calc(4  * 100% / 12); }
+  .m-pull-l-5  { right: calc(5  * 100% / 12); }
+  .m-pull-l-6  { right: calc(6  * 100% / 12); }
+  .m-pull-l-7  { right: calc(7  * 100% / 12); }
+  .m-pull-l-8  { right: calc(8  * 100% / 12); }
+  .m-pull-l-9  { right: calc(9  * 100% / 12); }
+  .m-pull-l-10 { right: calc(10 * 100% / 12); }
+  .m-pull-l-11 { right: calc(11 * 100% / 12); }
+
+  .m-clearfix-m::after { display: none; }
+
+  .m-hide-l { display: none; }
+  .m-show-l { display: initial; }
+
+  .m-col-l-none {
+    width: auto;
+    float: none;
+  }
+}
+
+/* kate: indent-width 2; */

diff --git a/css/m-light.css b/css/m-light.css
new file mode 100644 (file)
index 0000000..6268593
--- /dev/null
+++ b/css/m-light.css
@@ -0,0 +1,102 @@
+@import url('m-grid.css');
+@import url('m-components.css');
+@import url('m-debug.css');
+
+:root {
+  /* Text properties */
+  --font: 'Libre Baskerville', serif;
+  --code-font: 'Source Code Pro', monospace;
+  --link-decoration: underline;
+  --link-decoration-nav: none;
+  --link-decoration-heading: none;
+  --nav-brand-case: lowercase;
+  --nav-menu-case: lowercase;
+  --nav-heading-case: uppercase;
+  --nav-categories-case: lowercase;
+  --heading-font-weight: normal;
+
+  /* Basics */
+  --background-color: #ffffff;
+  --color: #000000;
+  --line-color: #f7e3db;
+  --link-color: #ea7944;
+  --link-active-color: #cb4b16;
+  --mark-color: #4c93d3;
+  --mark-background-color: #e6e69c;
+  --code-color: #5b5b5b;
+  --code-background-color: #fbf0ec;
+
+  /* Header */
+  --header-border-width: 0.25rem 0 0 0;
+  --header-color: #000000;
+  --header-background-color: rgba(255, 255, 255, 0.75);
+  --header-link-color: #000000;
+  --header-link-active-color: #cb4b16;
+  --header-link-current-color: #ea7944;
+  --header-link-active-background-color: rgba(255, 255, 255, 0.95);
+
+  /* Footer */
+  --footer-font-size: 0.85rem;
+  --footer-color: #7c7c7c;
+  --footer-background-color: #eeeeee;
+  --footer-link-color: #191919;
+  --footer-link-active-color: #494949;
+
+  /* Article */
+  --article-header-color: #7a7a7a;
+  --article-footer-color: #969696;
+  --article-heading-color: #cb4b16;
+  --article-heading-active-color: #802f0e;
+  --article-jumbo-cover-background-color: #666666;
+
+  /* Right navigation panel */
+  --navpanel-link-color: #292929;
+  --navpanel-link-active-color: #cb4b16;
+
+  /* Colored components */
+  --default-color: #000000;
+  --default-filled-color: #000000;
+  --default-filled-background-color: #fbf0ec;
+  --default-filled-link-color: #ea7944;
+  --default-filled-link-active-color: #cb4b16;
+
+  --primary-color: #cb4b16;
+  --primary-filled-color: #fbe4d9;
+  --primary-filled-background-color: #ef9069;
+  --primary-filled-link-color: #782f0d;
+  --primary-filled-link-active-color: #2f1205;
+
+  --success-color: #31c25d;
+  --success-filled-color: #f4fcf6;
+  --success-filled-background-color: #4dd376;
+  --success-filled-link-color: #c5f2d1;
+  --success-filled-link-active-color: #dcf6e3;
+
+  --warning-color: #c7cf2f;
+  --warning-filled-color: #fcfcf4;
+  --warning-filled-background-color: #d1d34d;
+  --warning-filled-link-color: #f0f1c7;
+  --warning-filled-link-active-color: #f6f6dc;
+
+  --danger-color: #f60000;
+  --danger-filled-color: #fdf3f3;
+  --danger-filled-background-color: #e23e3e;
+  --danger-filled-link-color: #f2c7c6;
+  --danger-filled-link-active-color: #f6dddc;
+
+  --info-color: #2e7dc5;
+  --info-filled-color: #f4f8fc;
+  --info-filled-background-color: #4c93d3;
+  --info-filled-link-color: #c6ddf2;
+  --info-filled-link-active-color: #dbeaf7;
+
+  --dim-color: #bdbdbd;
+  --dim-link-color: #c0c0c0;
+  --dim-link-active-color: #949494;
+  --dim-filled-color: #7c7c7c;
+  --dim-filled-background-color: #f1f1f1;
+  --dim-filled-link-color: #c0c0c0;
+  --dim-filled-link-active-color: #949494;
+}
+
+/* kate: indent-width 2; */