/* --------------------------------------------------------------
   site.css — visual refresh, mobile-first
   Depends on tokens.css. Replaces 18style.css, 18style_desktop.css,
   Bootstrap 4 CSS, and the inline blocks in index.hbs / _critical-css.hbs.
   -------------------------------------------------------------- */

/* --------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-surface);
}

img, picture, svg, video { max-width: 100%; height: auto; }
img { border: 0; }

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--motion-fast);
}
a:hover, a:focus-visible { color: var(--color-accent-hover); }
a:focus-visible { outline: none; box-shadow: var(--shadow-focus); border-radius: var(--radius-sm); }

h1, h2, h3, h4, h5, h6 { margin: 0 0 var(--space-3); line-height: var(--leading-tight); }

ul, ol { padding-left: var(--space-6); }

hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-8) 0; }

::selection { background: rgba(65, 48, 124, 0.18); }

/* --------------------------------------------------------------
   Layout primitives (Bootstrap-compatible class names)
   -------------------------------------------------------------- */

.container-fluid {
  width: 100%;
  /* No max-width by default. The kanban board on the homepage needs to grow
     with the viewport so all "Done" cards fit horizontally. Detail pages
     (the `.details` wrapper) tighten this to a reading-width via the
     `.details .dm-board` rule. */
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0;
}

/* Mobile: every col stacks full-width by default */
[class*="col-md-"] { grid-column: 1 / -1; }

@media (min-width: 768px) {
  .col-md-1  { grid-column: span 1; }
  .col-md-2  { grid-column: span 2; }
  .col-md-3  { grid-column: span 3; }
  .col-md-4  { grid-column: span 4; }
  .col-md-5  { grid-column: span 5; }
  .col-md-6  { grid-column: span 6; }
  .col-md-7  { grid-column: span 7; }
  .col-md-8  { grid-column: span 8; }
  .col-md-9  { grid-column: span 9; }
  .col-md-10 { grid-column: span 10; }
  .col-md-11 { grid-column: span 11; }
  .col-md-12 { grid-column: span 12; }

  /* Bootstrap-compatible offset utilities. `offset-md-N` combined with
     `col-md-M` shifts the column N tracks to the right by setting its
     explicit start position (track N+1) and span (M tracks). Used by
     document.hbs (`offset-md-3 col-md-6`) to center sheet-style content. */
  .offset-md-1.col-md-1   { grid-column: 2 / span 1; }
  .offset-md-1.col-md-2   { grid-column: 2 / span 2; }
  .offset-md-1.col-md-3   { grid-column: 2 / span 3; }
  .offset-md-1.col-md-4   { grid-column: 2 / span 4; }
  .offset-md-1.col-md-5   { grid-column: 2 / span 5; }
  .offset-md-1.col-md-6   { grid-column: 2 / span 6; }
  .offset-md-1.col-md-7   { grid-column: 2 / span 7; }
  .offset-md-1.col-md-8   { grid-column: 2 / span 8; }
  .offset-md-1.col-md-9   { grid-column: 2 / span 9; }
  .offset-md-1.col-md-10  { grid-column: 2 / span 10; }
  .offset-md-1.col-md-11  { grid-column: 2 / span 11; }

  .offset-md-2.col-md-1   { grid-column: 3 / span 1; }
  .offset-md-2.col-md-2   { grid-column: 3 / span 2; }
  .offset-md-2.col-md-3   { grid-column: 3 / span 3; }
  .offset-md-2.col-md-4   { grid-column: 3 / span 4; }
  .offset-md-2.col-md-5   { grid-column: 3 / span 5; }
  .offset-md-2.col-md-6   { grid-column: 3 / span 6; }
  .offset-md-2.col-md-7   { grid-column: 3 / span 7; }
  .offset-md-2.col-md-8   { grid-column: 3 / span 8; }
  .offset-md-2.col-md-9   { grid-column: 3 / span 9; }
  .offset-md-2.col-md-10  { grid-column: 3 / span 10; }

  .offset-md-3.col-md-1   { grid-column: 4 / span 1; }
  .offset-md-3.col-md-2   { grid-column: 4 / span 2; }
  .offset-md-3.col-md-3   { grid-column: 4 / span 3; }
  .offset-md-3.col-md-4   { grid-column: 4 / span 4; }
  .offset-md-3.col-md-5   { grid-column: 4 / span 5; }
  .offset-md-3.col-md-6   { grid-column: 4 / span 6; }
  .offset-md-3.col-md-7   { grid-column: 4 / span 7; }
  .offset-md-3.col-md-8   { grid-column: 4 / span 8; }
  .offset-md-3.col-md-9   { grid-column: 4 / span 9; }

  .offset-md-4.col-md-1   { grid-column: 5 / span 1; }
  .offset-md-4.col-md-2   { grid-column: 5 / span 2; }
  .offset-md-4.col-md-3   { grid-column: 5 / span 3; }
  .offset-md-4.col-md-4   { grid-column: 5 / span 4; }
  .offset-md-4.col-md-5   { grid-column: 5 / span 5; }
  .offset-md-4.col-md-6   { grid-column: 5 / span 6; }
  .offset-md-4.col-md-7   { grid-column: 5 / span 7; }
  .offset-md-4.col-md-8   { grid-column: 5 / span 8; }
}

/* Display utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }

@media (min-width: 768px) {
  .d-md-none { display: none !important; }
  .d-md-block { display: block !important; }
  .d-md-flex { display: flex !important; }
  .d-md-inline-block { display: inline-block !important; }

  /* Rows are grid by default. The `d-md-flex`/`d-md-block` utilities in the
     markup (e.g. `class="row d-none d-md-flex"`) are only meant to control
     mobile-vs-desktop *visibility*, not to actually swap layout. Without this
     override, the chip headers and desc row fall back to flex items at
     content width, clustering to the left and breaking column alignment. */
  .row.d-md-flex,
  .row.d-md-block { display: grid !important; }
}

@media (min-width: 992px) {
  .d-lg-none { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-lg-flex { display: flex !important; }
}

/* Float & text utilities (still referenced from layouts/partials) */
.float-left { float: left; }
.float-right { float: right; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.clearfix::after { content: ""; display: table; clear: both; }

/* --------------------------------------------------------------
   Typography
   -------------------------------------------------------------- */

article, section { color: var(--color-text); }

article header h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

article header p {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
}

article h2, .details h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

article h3, .details h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

article h4, .details h4 {
  font-size: var(--text-base);
  font-weight: 600;
  font-style: italic;
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

article p,
article li,
section p,
section li {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
}

article li { margin-bottom: var(--space-1); }

article a:not(.no_external_ico),
section a:not(.no_external_ico) {
  font-weight: 600;
  color: var(--color-link-external);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  background: url(/assets/images/external.png) right 50% no-repeat;
  padding-right: 12px;
  overflow-wrap: break-word;
}

article a:not(.no_external_ico):has(> img:only-child),
article a:not(.no_external_ico):has(> picture:only-child),
section a:not(.no_external_ico):has(> img:only-child),
section a:not(.no_external_ico):has(> picture:only-child) {
  font-weight: normal;
  color: inherit;
  background: none;
  padding-right: 0;
  text-decoration: none;
}

article a:not([href]) {
  background: inherit;
  padding-right: inherit;
  text-decoration: none;
}

article img[src*="#center"],
article iframe[src*="#center"],
article .center {
  display: block;
  margin: var(--space-4) auto;
  max-width: 100%;
  text-align: center;
  border-radius: var(--radius-md);
}

article .description { font-style: italic; color: var(--color-text-muted); }
article .duration {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: 0 0 var(--space-3);
}

/* Summary block on detail pages */
.summary {
  font-style: italic;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-4);
  margin: 0 0 var(--space-6);
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.summary p:last-child { margin-bottom: 0; }

/* Code */
code {
  color: var(--color-code);
  background: var(--color-code-bg);
  padding: 0.125em 0.375em;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.92em;
  word-wrap: break-word;
}

pre code { padding: 0; background: transparent; }

/* Blockquote (keep the orange-rail identity, refresh the proportions) */
article blockquote {
  font-size: var(--text-lg);
  width: auto;
  margin: var(--space-6) 0;
  font-family: var(--font-sans);
  font-style: italic;
  color: var(--color-text-muted);
  padding: var(--space-5) var(--space-6) var(--space-5) var(--space-10);
  border-left: 6px solid var(--color-brand-deep);
  line-height: var(--leading-relaxed);
  position: relative;
  background: var(--color-surface-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

article blockquote::before {
  font-family: Georgia, "Times New Roman", serif;
  content: "\201C";
  color: var(--color-brand-deep);
  font-size: 3.5em;
  line-height: 1;
  position: absolute;
  left: var(--space-3);
  top: -0.1em;
}

article blockquote::after { content: ""; }

/* --------------------------------------------------------------
   Tables (article tables, attachments)
   -------------------------------------------------------------- */

section table,
article table {
  width: 100%;
  margin: var(--space-4) 0;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: var(--text-sm);
}

section table th,
article table th {
  background: var(--color-surface-alt);
  border-bottom: 2px solid var(--color-brand-deep);
  text-align: left;
  padding: var(--space-2) var(--space-3);
  font-weight: 600;
}

section table td,
article table td {
  border-top: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
}

.table-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Attachments-specific tweaks */
.attachments { margin: var(--space-6) 0; }
.attachments .filename { display: none; }
@media (min-width: 768px) {
  .attachments .filename { display: table-cell; }
}

/* --------------------------------------------------------------
   Image gallery
   -------------------------------------------------------------- */

.image_gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-6) 0;
  padding: 0;
  text-align: center;
}

.image_gallery a {
  flex: 0 0 auto;
  background: none;
  padding-right: 0;
}

.image_gallery a img {
  display: block;
  border-radius: var(--radius-sm);
  transition: transform var(--motion-base), box-shadow var(--motion-base);
}

.image_gallery a:hover img {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.download {
  background: url(/assets/images/download.png) 0 0 no-repeat !important;
  float: right;
  width: 100px;
  height: 16px;
  padding-right: 0 !important;
}

/* --------------------------------------------------------------
   Anchor offset for in-page links
   -------------------------------------------------------------- */

.anchor {
  display: block;
  position: relative;
  top: calc(-1 * var(--board-pin-offset) - var(--space-2));
}

/* --------------------------------------------------------------
   Main shell
   -------------------------------------------------------------- */

.board_view { overflow-x: hidden; }

.dm-main-content {
  position: relative;
  min-height: 100vh;
}

.dm-main-content::after {
  content: "";
  display: table;
  clear: both;
}

.dm-main-content .logo {
  position: fixed;
  top: var(--space-2);
  left: var(--space-2);
  display: block;
  width: auto;
  z-index: 20;
  background: var(--color-surface);
  border-radius: 50%;
  padding: 4px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--motion-base), transform var(--motion-base);
}

.dm-main-content .logo:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.05);
}

.dm-main-content .logo img {
  display: block;
  width: 44px;
  height: 44px;
  float: none !important;
}

@media (min-width: 768px) {
  /* Align the D-logo's vertical center with the orange identity pill on the
     right. The pill (.submenu) sits at top: var(--space-3) and is ~44px tall;
     its center is at y ≈ 34. The 58px-tall logo at the same top would land
     7px lower; setting top to var(--space-1) puts both centers in line. */
  .dm-main-content .logo {
    top: var(--space-1);
    left: var(--space-3);
  }
  .dm-main-content .logo img { width: 50px; height: 50px; }
}

/* Pinned filter bar when scrolled past top (toggled by main.js).
   Anchored at top:0 so the wrapper's white background also covers the topbar
   zone where the floating logo + orange-box live (otherwise that strip is
   transparent and page content scrolls visibly underneath the chrome).
   `padding-top: var(--topbar-height)` reserves space inside the wrapper for
   those floating elements. */
.dm-main-content.is-fixed .dm-tab-filter-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 15;
  padding-top: var(--topbar-height);
}

.dm-main-content.is-fixed .dm-board {
  padding-top: var(--board-pin-offset);
}

.dm-main-content.is-fixed .dm-filter {
  position: fixed;
  height: 100vh;
  overflow: hidden;
}

.dm-main-content.is-fixed .dm-filter form {
  height: 100vh;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.dm-main-content.is-fixed .dm-filter-trigger { position: fixed; }

/* --------------------------------------------------------------
   Filter bar (top): mobile dropdown -> desktop pill tabs
   -------------------------------------------------------------- */

.dm-tab-filter-wrapper {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 2px rgba(26, 15, 28, 0.04);
  position: relative;
  z-index: 1;
}

.dm-tab-filter-wrapper::after {
  content: "";
  display: table;
  clear: both;
}

/* Mobile: behaves as a dropdown — only first <li> is shown until .is-open */
.dm-tab-filter {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  height: var(--board-pin-offset);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dm-tab-filter::after {
  content: "";
  position: absolute;
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  background: url("../images/dm-icon-arrow.svg") no-repeat center / contain;
  pointer-events: none;
  opacity: 0.7;
  transition: transform var(--motion-base), opacity var(--motion-fast);
}

.dm-tab-filter:hover::after { opacity: 1; }

.dm-tab-filter.is-open::after {
  transform: translateY(-50%) rotate(-180deg);
}

.dm-tab-filter ul {
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 288px;
  max-width: calc(76vw - var(--space-6));
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.dm-tab-filter li { display: none; }
.dm-tab-filter li:first-child { display: block; }
.dm-tab-filter.is-open li { display: block; }

/* When the dropdown is open, anchor it to the top of the filter bar so it
   always grows *downward*. With ~10 menu items the UL is taller than the
   72px bar, so the previous centered positioning pushed the first items
   above the viewport. Also constrain max-height + scroll so the menu never
   exceeds the visible area. */
.dm-tab-filter.is-open ul {
  top: 0;
  transform: translate(-50%, 0);
  max-height: calc(100vh - var(--space-8));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}

.dm-tab-filter a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
}

.dm-tab-filter a.selected {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.dm-tab-filter.is-open .placeholder a { opacity: 0.45; }

/* Desktop: pill bar */
@media (min-width: 768px) {
  /* On desktop the `<ul class="dm-filters d-block d-md-none">` inside
     .dm-tab-filter is hidden, so the wrapper has no content. Collapse it
     completely so the pinned bar only contains the chip header + desc row
     (~63px tall, fits inside --board-pin-offset and stops covering the
     first board row). */
  .dm-tab-filter {
    height: 0;
    min-height: 0;
    padding: 0;
    margin: 0;
    width: auto;
    max-width: none;
    cursor: auto;
    overflow: visible;
  }

  .dm-tab-filter::after { display: none; }

  .dm-tab-filter ul {
    position: static;
    transform: none;
    width: auto;
    display: flex;
    gap: var(--space-1);
    background: transparent;
    border: 0;
    padding: var(--space-1);
    border-radius: var(--radius-pill);
    background: var(--color-surface-alt);
  }

  .dm-tab-filter li { display: inline-block; }
  .dm-tab-filter li.placeholder { display: none !important; }
  .dm-tab-filter.is-open ul { box-shadow: none; }

  .dm-tab-filter a {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: var(--text-sm);
    border-radius: var(--radius-pill);
    white-space: nowrap;
    transition: background var(--motion-fast), color var(--motion-fast);
  }

  .dm-tab-filter a:hover { color: var(--color-accent); background: var(--color-surface); }

  .dm-tab-filter a.selected {
    background: var(--color-accent);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-sm);
  }
}

/* --------------------------------------------------------------
   Board: section heading splitter + column header chips
   -------------------------------------------------------------- */

.dm-board {
  padding-top: var(--space-3);
  padding-bottom: var(--space-12);
}

/* The board header container is floated in the HBS markup; neutralize that
   so it auto-centers like .dm-board. Otherwise the header sits at left:0
   while the cards center, misaligning columns at wide viewports. */
.dm-tab-filter-wrapper .container-fluid { float: none; }

/* Splitter — section heading between swimlanes */
.splitter {
  display: block;
  position: relative;
  margin: var(--space-8) 0 var(--space-4);
  padding: 0;
  background: none;
  border: 0;
  font-size: var(--text-sm);
  height: auto;
  text-align: center;
}

.splitter:first-of-type { margin-top: var(--space-4); }

.splitter::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
  z-index: 0;
}

.splitter > div,
.splitter > h1 {
  position: relative;
  z-index: 1;
  display: inline-block;
  background: var(--color-surface);
  padding: 0 var(--space-4);
  font-weight: 700;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-muted);
  margin: 0;
}

#new_essay {
  text-align: center;
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
}

#new_essay span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}

#new_essay i {
  color: var(--color-brand-deep);
  font-size: 0.95rem;
}

#new_essay a {
  font-weight: 600;
  text-decoration: none;
}

/* Board column headers (the kanban status chips replacing the GIF sprites) */
#dm-board-header {
  margin-top: var(--space-2);
  margin-bottom: 2px;
}

#dm-board-header > div {
  padding: var(--space-1);
  text-align: center;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

#dm-board-header .plan {
  background: var(--status-plan-tint);
  color: #1f5a8a;
  border-top: 3px solid var(--status-plan);
}

#dm-board-header .in_progress {
  background: var(--status-progress-tint);
  color: #8a5a00;
  border-top: 3px solid var(--status-progress);
}

#dm-board-header .done {
  background: var(--status-done-tint);
  color: #4a6313;
  border-top: 3px solid var(--status-done);
}

#dm-board-header span { display: inline-block; }

#dm-board-header-descs {
  margin-bottom: var(--space-2);
}

#dm-board-header-descs > div {
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  padding: var(--space-1);
  font-size: var(--text-xs);
  text-align: center;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* --------------------------------------------------------------
   Swimlane rows
   -------------------------------------------------------------- */

.row.me, .row.experience, .row.education, .row.essay,
.row.project, .row.research, .row.article, .row.bonsai, .row.quote {
  margin-bottom: var(--space-6);
}

/* Each swimlane column body (the .iso containers).
   Padding is tiny so Isotope's absolute-positioned cards (170px wide,
   no internal gutter) fit cleanly inside the narrowest column (col-md-2).                                      
   No `min-height`: on mobile the plan/in_progress/done columns stack                                           
   vertically via the grid, and an empty column with a min-height adds                                          
   wasted blank space before the next non-empty column's cards. */
.iso {
  padding: 0 var(--space-1);
}

/* Board header chips and desc row need the same horizontal padding as .iso
   so their text aligns with the cards inside the columns below. */
#dm-board-header > div,
#dm-board-header-descs > div {
  margin: 0 var(--space-1);
}

/* Mobile: columns stack via the grid (grid-column: 1 / -1). Isotope still
   manages each .iso container, so cards keep their 170px width and pack
   2-per-row at typical mobile widths. */

/* --------------------------------------------------------------
   Task card (the heart of the board)

   Contract: _task.hbs emits inline style="color: <textColor>;
   border-left-color: <card.color>;" plus the card-header has
   inline background-color: <card.color>. We provide the rest.
   -------------------------------------------------------------- */

/* Single card size across all viewports — matches Isotope `columnWidth: 170`
   from main.js. Isotope absolutely positions items and packs them with
   `gutter: 10` horizontally; on narrower viewports it just fits fewer cards
   per row. Mobile-specific overrides (full-width cards) fight Isotope's
   layout and break the visual frame, so we keep the same 170px everywhere.
   DO NOT change this without also editing main.js Isotope config.
   `margin-bottom: 10px` matches the horizontal gutter so vertical row
   spacing equals horizontal card spacing — Isotope reads outerHeight when
   stacking rows. */
.task.card {
  position: relative;
  width: 170px;
  margin: 0 0 10px 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  font-size: 0.8125rem; /* 13px — one step below --text-sm */
  transition:
    transform var(--motion-base),
    box-shadow var(--motion-base);
}

.task.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.task.card > a {
  display: block;
  color: inherit;
  text-decoration: none;
}

.task.card a:hover { text-decoration: none; }

.task .card-header {
  /* background-color is inline (frontmatter card.color); color is inline too */
  padding: var(--space-2) var(--space-3);
  margin: 0;
  font-size: 0.8125rem; /* 13px */
  font-weight: 700;
  line-height: var(--leading-tight);
  border: 0;
}

.task .card-header.ellipsis {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task .card-body {
  padding: var(--space-2) var(--space-3);
  margin: 0;
  font-size: 0.8125rem; /* 13px */
  font-weight: 400;
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.task .list-group {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-border);
}

.task .list-group-item {
  list-style: none;
  padding: var(--space-2) var(--space-1);
  font-size: 0.6875rem; /* 11px — one step below --text-xs */
  color: var(--color-text-muted);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--color-border);
}

.task .list-group-item:last-child { border-bottom: 0; }

.task .list-group-item a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.task .subtasks label {
  display: block;
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  cursor: default;
}

.task .subtasks input[type="checkbox"] {
  margin-right: var(--space-1);
  pointer-events: none;
}

.task .badge {
  display: inline-block;
  font-size: 0.5rem; /* ~8px */
  font-weight: 600;
  padding: 0.25em 0.55em;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
  /* background-color & color are inline from frontmatter */
}

/* Many cards have an empty card.leftbox value that still renders an empty
   floated <span class="badge float-left">. Hide it so it doesn't show as a
   tiny orphan pill above the date. */
.task .badge:empty { display: none; }

/* The badge row in _task.hbs contains two floated badges (leftbox + datebox).
   Floats inside a li-only-with-floats container don't reliably share a
   baseline. Treat the row as a flex container instead so badges align on
   the same horizontal line, with empty/single-badge cases handled by
   justify-content. */
.task .list-group-item:has(> .badge) {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  justify-content: space-between;
  align-items: center;
}

/* When only the right badge is present, push it to the right with an
   auto-margin so it still hugs the right edge. */
.task .list-group-item:has(> .badge.float-right:only-child) { justify-content: flex-end; }
.task .list-group-item:has(> .badge.float-left:only-child) { justify-content: flex-start; }

.task .task_tag,
.task .task_external_link {
  background: none;
  display: inline-block;
  width: auto;
  height: auto;
  margin: 0 var(--space-1) 0 0;
  overflow: visible;
  text-indent: 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 600;
}

.task .task_tag::before,
.task .task_external_link::before {
  font-family: FontAwesome;
  margin-right: 0.35em;
  color: var(--color-accent);
}

.task .task_tag::before { content: "\f02b"; }              /* fa-tag */
.task .task_external_link::before { content: "\f08e"; }   /* fa-external-link */

.task .card-link { color: var(--color-link); }

.ellipsis {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --------------------------------------------------------------
   Lateral filter (currently hidden via markup; styles preserved
   for completeness and for the slide-in behavior).
   -------------------------------------------------------------- */

.dm-filter {
  position: absolute;
  top: 0;
  left: 0;
  width: 280px;
  height: 100%;
  background: var(--color-surface);
  z-index: 2;
  transform: translateX(-100%);
  transition: transform var(--motion-slow), box-shadow var(--motion-slow);
}

.dm-filter::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 50px;
  width: 100%;
  background: var(--color-accent);
  z-index: 2;
}

.dm-filter form { padding: 70px var(--space-5); }

.dm-filter .dm-close {
  position: absolute;
  top: 0;
  right: 0;
  height: 50px;
  line-height: 50px;
  width: 60px;
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  text-align: center;
  background: var(--color-accent-hover);
  opacity: 0;
  transition: opacity var(--motion-base);
  z-index: 3;
}

.dm-filter.filter-is-visible {
  transform: translateX(0);
  box-shadow: var(--shadow-lg);
}

.dm-filter.filter-is-visible .dm-close { opacity: 1; }

.dm-filter-trigger {
  position: absolute;
  top: 0;
  left: 30px;
  height: 50px;
  line-height: 50px;
  width: 60px;
  overflow: hidden;
  text-indent: 100%;
  white-space: nowrap;
  color: transparent;
  background: transparent url("../images/dm-icon-filter.svg") no-repeat center;
  z-index: 3;
}

.dm-filter-trigger.filter-is-visible { pointer-events: none; }

@media (min-width: 1170px) {
  .dm-filter { width: 20%; }
  .dm-filter form { padding: 70px 10%; }
}

/* Lateral filter form blocks */
.dm-filter-block { margin-bottom: var(--space-6); }

.dm-filter-block h4 {
  position: relative;
  margin-bottom: var(--space-1);
  padding: var(--space-2) 0 var(--space-2) var(--space-5);
  color: var(--color-text-muted);
  text-transform: uppercase;
  font-weight: 700;
  font-size: var(--text-sm);
  user-select: none;
  cursor: pointer;
  letter-spacing: var(--tracking-wide);
}

.dm-filter-block h4:hover { color: var(--color-accent); }

.dm-filter-block h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 16px;
  height: 16px;
  background: url("../images/dm-icon-arrow.svg") no-repeat center / contain;
  transform: translateY(-50%);
  transition: transform var(--motion-base);
}

.dm-filter-block h4.closed::before { transform: translateY(-50%) rotate(-90deg); }

.dm-filter-block input,
.dm-filter-block select,
.dm-filter-block .radio-label::before,
.dm-filter-block .checkbox-label::before {
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
}

.dm-filter-block input[type='search'],
.dm-filter-block input[type='text'],
.dm-filter-block select {
  width: 100%;
  padding: var(--space-3);
  appearance: none;
  box-shadow: none;
}

.dm-filter-block input[type='search']:focus,
.dm-filter-block input[type='text']:focus,
.dm-filter-block select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.dm-filter-block input[type='search'] {
  border-color: transparent;
  background: var(--color-surface-alt);
  font-size: var(--text-base) !important;
}

.dm-filter-block input[type='search']::-webkit-search-cancel-button { display: none; }

.dm-filter-block .dm-select { position: relative; }
.dm-filter-block .dm-select::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  background: url("../images/dm-icon-arrow.svg") no-repeat center / contain;
  pointer-events: none;
}

.dm-filter-block select { cursor: pointer; font-size: var(--text-sm); }
.dm-filter-block select::-ms-expand { display: none; }

.dm-filter-block .list li {
  position: relative;
  margin-bottom: var(--space-2);
}

.dm-filter-block input[type=radio],
.dm-filter-block input[type=checkbox] {
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
  padding: 0;
  opacity: 0;
  z-index: 2;
}

.dm-filter-block .checkbox-label,
.dm-filter-block .radio-label {
  padding-left: var(--space-6);
  font-size: var(--text-sm);
  user-select: none;
}

.dm-filter-block .checkbox-label::before,
.dm-filter-block .checkbox-label::after,
.dm-filter-block .radio-label::before,
.dm-filter-block .radio-label::after {
  content: "";
  display: block;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.dm-filter-block .checkbox-label::before,
.dm-filter-block .radio-label::before {
  width: 16px;
  height: 16px;
  left: 0;
}

.dm-filter-block .checkbox-label::after,
.dm-filter-block .radio-label::after { display: none; }

.dm-filter-block .checkbox-label::after {
  width: 16px;
  height: 16px;
  background: url("../images/dm-icon-check.svg") no-repeat center;
}

.dm-filter-block .radio-label::before,
.dm-filter-block .radio-label::after { border-radius: 50%; }

.dm-filter-block .radio-label::after {
  width: 6px;
  height: 6px;
  background-color: var(--color-surface);
  left: 5px;
}

.dm-filter-block input[type=radio]:checked + label::before,
.dm-filter-block input[type=checkbox]:checked + label::before {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
}

.dm-filter-block input[type=radio]:checked + label::after,
.dm-filter-block input[type=checkbox]:checked + label::after { display: block; }

@-moz-document url-prefix() {
  .dm-filter-block .dm-select::after { display: none; }
}

/* --------------------------------------------------------------
   Orange box (floating identity chip — top-right)
   -------------------------------------------------------------- */

.orange_box {
  display: none;
}

@media (min-width: 768px) {
  .orange_box {
    display: inline-flex;
    align-items: stretch;
    overflow: hidden;
    background: var(--color-brand);
    color: var(--color-text-inverse);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-md);
    font-weight: 700;
    font-size: var(--text-sm);
    line-height: 1.1;
    padding: 0;
    margin-right: var(--space-3);
  }

  .orange_box a {
    color: var(--color-text-inverse);
    transition: background var(--motion-fast);
  }

  .orange_box a:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--color-text-inverse);
  }

  .orange_box .username {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-weight: 700;
  }

  .orange_box .username::before {
    content: "";
    display: inline-block;
    width: 28px;
    height: 28px;
    background-image: url("/assets/images/orange-box-avatar.png");
    background-size: cover;
    background-position: center;
    background-color: var(--color-surface);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.35);
    flex-shrink: 0;
  }

  .orange_box ul {
    display: inline-flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.35);
  }

  .orange_box ul li {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
  }

  .orange_box ul li + li,
  .orange_box ul + ul li:first-child {
    border-left: 1px solid rgba(255, 255, 255, 0.18);
  }

  .orange_box ul li a {
    color: var(--color-text-inverse);
  }
}

.submenu {
  position: fixed;
  top: var(--space-3);
  right: var(--space-3);
  /* Above the pinned filter bar (z-index 15 when .is-fixed) so the
     orange identity chip stays visible on scroll. */
  z-index: 20;
}

/* --------------------------------------------------------------
   Footer
   -------------------------------------------------------------- */

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  min-height: var(--footer-height);
  background: var(--color-footer-bg);
  color: var(--color-text-inverse);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  padding: 0 var(--space-3);
}

.footer ul {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer li { padding: 0; margin: 0; }

.footer a {
  color: var(--color-text-inverse);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--motion-fast);
}

.footer a:hover {
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.footer img { display: inline-block; vertical-align: middle; }

/* Make the body leave room for the fixed footer */
body { padding-bottom: var(--footer-height); }

/* --------------------------------------------------------------
   About-me specific (promoted from inline)
   -------------------------------------------------------------- */

.me-effect {
  border: 2px solid var(--color-surface);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
}

.aboutme-photo {
  text-align: center;
  margin: var(--space-4) 0;
}

.aboutme-photo img { max-width: min(360px, 100%); }

/* --------------------------------------------------------------
   Project / Education entry header layouts
   (promoted from inline float:left/right)
   -------------------------------------------------------------- */

.entry-header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.entry-header-meta .meta-info { flex: 1 1 auto; }
.entry-header-meta .meta-actions { flex: 0 0 auto; }
.entry-header-meta p { margin: 0 0 var(--space-1); }

/* --------------------------------------------------------------
   Detail page board container
   -------------------------------------------------------------- */

.details .dm-board {
  max-width: 880px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4) var(--space-12);
}

.details .dm-main-content.is-fixed .dm-board {
  padding-top: calc(var(--board-pin-offset) + var(--space-4));
}

@media (min-width: 1170px) {
  .details .dm-board {
    padding-left: 0;
    padding-right: 0;
  }
}

/* Backlinks & related-topics */
.backlinks,
.related-topics {
  background: var(--color-surface-alt);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  margin: var(--space-6) 0;
}

.backlinks h2,
.related-topics h2 {
  margin-top: 0;
  font-size: var(--text-lg);
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-text);
}

.backlinks ul,
.related-topics ul {
  list-style: disc inside;
  padding-left: 0;
  margin: 0;
}

/* --------------------------------------------------------------
   Print
   -------------------------------------------------------------- */

@media print {
  .submenu,
  .orange_box,
  .footer,
  .dm-tab-filter-wrapper,
  .dm-filter,
  .dm-filter-trigger,
  .logo,
  .image_gallery { display: none !important; }

  body { padding-bottom: 0; }

  .dm-main-content.is-fixed .dm-board { padding-top: 0; }

  article a { color: var(--color-text) !important; background: none !important; }
}