:root{
  --bg: #0f111a;
  --sidebar-bg: #0c0e16;
  --surface: rgba(255,255,255,.06);
  --surface-2: rgba(255,255,255,.085);
  --card-bg: rgba(255,255,255,.06);
  --card-bg-hover: rgba(255,255,255,.085);
  --panel-bg: rgba(255,255,255,.06);
  --panel-bg-hover: rgba(255,255,255,.085);
  --text: rgba(255,255,255,.9);
  --muted: rgba(255,255,255,.66);
  --faint: rgba(255,255,255,.46);
  --border: rgba(255,255,255,.12);
  --shadow: 0 12px 35px rgba(0,0,0,.38);
  --accent: #7dd3fc;
  --accent-2: #a78bfa;
  --code-bg: rgba(255,255,255,.07);
  --ring: 0 0 0 3px rgba(125, 211, 252, .22);
  --radius: 14px;
  --radius-sm: 10px;
  --article-content-max: 860px;
  --content-max: var(--article-content-max);
  --layout-pad-x: 32px;
  --rail-w: 300px;
  --rail-gap: 32px;
  --main-inner-max: calc(var(--content-max) + var(--rail-w) + var(--rail-gap));
  --sidebar-w-expanded: 268px;
  --sidebar-w-collapsed: 72px;
  --sidebar-w: var(--sidebar-w-expanded);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

:root[data-theme="light"]{
  --bg: #ffffff;
  --sidebar-bg: #f4f5f9;
  --surface: rgba(10,20,40,.06);
  --surface-2: rgba(10,20,40,.08);
  --card-bg: #ffffff;
  --card-bg-hover: rgba(10,20,40,.035);
  --panel-bg: #ffffff;
  --panel-bg-hover: rgba(10,20,40,.03);
  --text: rgba(10,20,40,.92);
  --muted: rgba(10,20,40,.66);
  --faint: rgba(10,20,40,.5);
  --border: rgba(10,20,40,.10);
  --shadow: 0 10px 28px rgba(10,20,40,.10);
  --accent: #0284c7;
  --accent-2: #7c3aed;
  --code-bg: rgba(10,20,40,.06);
  --ring: 0 0 0 3px rgba(2, 132, 199, .18);
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
html{
  overflow-x: clip;
}
body{
  margin:0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; text-decoration-color: var(--border); }

.skip-link{
  position:absolute; left:-999px; top:8px;
  padding:10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 92%, white 8%);
}
.skip-link:focus{ left: 12px; outline: none; box-shadow: var(--ring); }

.app{
  min-height: 100vh;
  min-width: 0;
  display:grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
}
@media (min-width: 821px){
  .app{
    transition: grid-template-columns 0.24s ease;
  }
}

.sidebar{
  grid-area: sidebar;
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 18px 16px;
  border-right: 1px solid var(--border);
  background: var(--sidebar-bg);
  display:flex;
  flex-direction: column;
  gap: 0;
  min-height: 0;
  /*
    Collapse-handle vertical position: `top` on .sidebar__collapseDock (absolute in this rail).
    `%` is relative to sidebar height (full column ≈ viewport). Examples: 50%, 12%, 120px.
  */
  --sidebar-collapse-top: 10%;
  /* Collapsed rail only: space above nav links (independent of --sidebar-collapse-top). */
  --sidebar-collapsed-nav-pad-top: 45px;
}
/* One injected wrapper: real flex column (avoid display:contents quirks in some engines). */
.sidebar__chunk{
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}
.sidebar__brand{
  flex-shrink: 0;
  padding: 12px 10px 8px;
  border-radius: var(--radius);
  background: transparent;
  border: 1px solid transparent;
}
.brand__right{
  display:flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 10px;
}
.brand__logo{
  height: 140px;
  width: auto;
  object-fit: contain;
  border-radius: 18px;
}
.brand__logo--light{ display: none; }
:root[data-theme="light"] .brand__logo--dark{ display: none; }
:root[data-theme="light"] .brand__logo--light{ display: block; }
.sidebar__brandRow{
  display:flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  gap: 10px;
}
.sidebar__brandRow > div{
  width: 100%;
  text-align: center;
}
.brand{
  display:inline-block;
  font-weight: 760;
  letter-spacing: .2px;
  font-size: 16px;
  text-decoration: none;
}
.brand:hover{ text-decoration: none; }
.brand__sub{
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

.nav{
  display:flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 6px;
  flex-shrink: 0;
}
.nav__item{
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
}
.nav__item > span{
  min-width: 0;
}
.nav__icon{
  width: calc(16px * 1.15);
  height: calc(16px * 1.15);
  flex: 0 0 calc(16px * 1.15);
  display: block;
  object-fit: contain;
  opacity: 0.82;
}
.nav__item:hover .nav__icon,
.nav__item--active .nav__icon{
  opacity: 1;
}
.nav__item:hover{
  text-decoration: none;
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.nav__item--active{
  color: var(--text);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, transparent), var(--surface));
  border-color: var(--border);
}

/* Out of document flow: straddles sidebar/main border; stays on the rail edge during grid width transition. */
.sidebar__collapseDock{
  position: absolute;
  top: var(--sidebar-collapse-top);
  right: 0;
  transform: translate(50%, -50%);
  width: 0;
  height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 35;
  opacity: 0;
  transition: opacity 0.18s ease;
  pointer-events: none;
}
.sidebar__collapseDock .sidebar__collapse{
  pointer-events: none;
}
.sidebar:hover .sidebar__collapseDock,
.sidebar__collapseDock:focus-within{
  opacity: 1;
  pointer-events: auto;
}
.sidebar:hover .sidebar__collapseDock .sidebar__collapse,
.sidebar__collapseDock:focus-within .sidebar__collapse{
  pointer-events: auto;
}
.sidebar__collapse{
  box-sizing: border-box;
  width: 34px;
  height: 34px;
  min-width: 34px;
  min-height: 34px;
  padding: 0;
  margin: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  line-height: 1;
  letter-spacing: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--sidebar-bg);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.22);
}
:root[data-theme="light"] .sidebar__collapse{
  box-shadow: 0 2px 14px rgba(10, 20, 40, 0.12);
}
.button.sidebar__collapse:hover{
  background: color-mix(in srgb, var(--sidebar-bg) 82%, var(--surface));
  border-color: var(--border);
  color: var(--text);
}
.sidebar__footer{
  flex-shrink: 0;
  margin-top: auto;
  display:flex;
  flex-direction: column;
  gap: 10px;
  padding: 6px;
}

@media (min-width: 821px){
  html[data-sidebar-collapsed="true"]{
    --sidebar-w: var(--sidebar-w-collapsed);
    /* Widen article + topbar cap by the horizontal space freed from the narrow rail. */
    --content-max: calc(
      var(--article-content-max) + var(--sidebar-w-expanded) - var(--sidebar-w-collapsed)
    );
    --main-inner-max: calc(var(--content-max) + var(--rail-w) + var(--rail-gap));
  }
  html[data-sidebar-collapsed="true"] .sidebar{
    padding: 12px 8px;
  }
  html[data-sidebar-collapsed="true"] .sidebar__brand{
    padding: 8px 4px 6px;
  }
  html[data-sidebar-collapsed="true"] .sidebar__brandRow{
    display: none;
  }
  html[data-sidebar-collapsed="true"] .brand__right{
    margin-bottom: 6px;
  }
  html[data-sidebar-collapsed="true"] .brand__logo{
    height: 50px;
    border-radius: 12px;
  }
  html[data-sidebar-collapsed="true"] .nav{
    gap: 6px;
    padding: var(--sidebar-collapsed-nav-pad-top) 2px 0;
  }
  html[data-sidebar-collapsed="true"] .nav__item{
    justify-content: center;
    gap: 0;
    padding: 10px 8px;
  }
  html[data-sidebar-collapsed="true"] .nav__item > span{
    display: none;
  }
  html[data-sidebar-collapsed="true"] .nav__icon{
    width: calc(20px * 1.15);
    height: calc(20px * 1.15);
    flex: 0 0 calc(20px * 1.15);
  }
  html[data-sidebar-collapsed="true"] .sidebar__collapse{
    width: 30px;
    height: 30px;
    min-width: 30px;
    min-height: 30px;
    font-size: 14px;
  }
  html[data-sidebar-collapsed="true"] .sidebar__footer .button__text{
    display: none;
  }
  html[data-sidebar-collapsed="true"] .sidebar__footer .button[data-theme-toggle]{
    justify-content: center;
    width: 100%;
    min-height: 40px;
  }
  html[data-sidebar-collapsed="true"] .sidebar__footer .muted{
    display: none;
  }
}

.topbar{
  grid-area: topbar;
  position: sticky;
  top:0;
  z-index: 20;
  min-width: 0;
  padding: 12px var(--layout-pad-x);
  border-bottom: 0;
  background: color-mix(in srgb, var(--bg) 90%, white 10%);
  backdrop-filter: blur(8px);
}
.topbar__inner{
  max-width: var(--main-inner-max);
  margin-left: 0;
  margin-right: auto;
  width: 100%;
  min-width: 0;
  display:grid;
  grid-template-columns: minmax(0, var(--content-max)) var(--rail-w);
  gap: var(--rail-gap);
  align-items: center;
}
.topbar__inner:has(.topbar__search){
  align-items: start;
}
.topbar__inner:not(:has(.topbar__search)){
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.topbar__inner:not(:has(.topbar__search)) .topbar__lead{
  flex: 1;
  min-width: 0;
}
.topbar__inner:not(:has(.topbar__search)) .topbar__tools{
  flex: 0 0 auto;
}
.topbar__lead{
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.topbar__tools{
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  min-width: 0;
}
/* Full rail width for search: theme + search were sharing one row and shrinking the field. */
.topbar__tools:has(.topbar__search){
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  width: 100%;
}
.topbar__tools:has(.topbar__search) > div:first-child{
  align-self: flex-end;
}
.topbar__lead > div:nth-child(2){
  flex: 1;
  min-width: 0;
}
.topbar__lead .topbar__crumb{
  min-width: 0;
  width: 100%;
}
.topbar__menu-icon{
  width: 20px;
  height: 20px;
  display: block;
  object-fit: contain;
}
.topbar__crumb{
  display:flex;
  align-items:center;
  flex-wrap: wrap;
  gap: 6px 8px;
  font-size: 14px;
  line-height: 1.3;
  min-width: 0;
}
.topbar__crumb-link{
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}
.topbar__crumb-link:hover{
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border);
}
.topbar__crumb-sep{
  color: var(--faint);
  font-weight: 500;
  user-select: none;
}
.topbar__crumb-current{
  color: var(--text);
  font-weight: 650;
}
/* Must beat .button { display: inline-flex } which appears later in this file. */
.button.topbar__menu,
.button.topbar__theme{
  display: none;
}
.topbar__search{
  display:flex;
  align-items:center;
  gap: 10px;
  width: 100%;
  min-width: 0;
  max-width: none;
  justify-self: stretch;
}
.search{
  width: 100%;
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
}
.search__icon{
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.search__icon img{
  width: 18px;
  height: 18px;
  display: block;
  object-fit: contain;
  opacity: 0.65;
}
.search__input{
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}
.search__input::placeholder{ color: var(--faint); }

.main{
  grid-area: main;
  min-width: 0;
  padding: 22px var(--layout-pad-x) 40px;
}
.main-inner{
  max-width: var(--main-inner-max);
  margin-left: 0;
  margin-right: auto;
  width: 100%;
  min-width: 0;
  display:grid;
  grid-template-columns: minmax(0, var(--content-max)) var(--rail-w);
  gap: var(--rail-gap);
  align-items: start;
}
/* Let the article column shrink below intrinsic min-content on narrow viewports (avoids horizontal scroll). */
.main-inner > *{
  min-width: 0;
}
.rail{
  position: sticky;
  top: 66px;
  display:flex;
  flex-direction: column;
  gap: 12px;
}

.section{ margin-top: 18px; }
.section__head{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 18px 2px 10px;
  min-width: 0;
}
.section__title{ margin: 0; font-size: 15px; letter-spacing: .25px; text-transform: uppercase; color: var(--muted); }
.section__link{ color: var(--muted); font-size: 14px; }

.cards{
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.card{
  padding: 14px 14px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 8px 22px rgba(0,0,0,.10);
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  overflow-wrap: break-word;
}
.card:hover{
  transform: translateY(-1px);
  background: var(--card-bg-hover);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent) 30%);
  text-decoration: none;
}
.card__title{
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 720;
}
.card__meta{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}
.card__desc{
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.widget{
  padding: 14px 14px;
  border-radius: var(--radius);
  background: var(--panel-bg);
  border: 1px solid var(--border);
}
.widget__title{
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .25px;
  text-transform: uppercase;
  color: var(--muted);
}
.widget__list{ display:flex; flex-direction: column; gap: 8px; }
.widget__item{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}
.widget__item a{
  color: var(--text);
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.widget__item a:hover{ text-decoration: underline; text-decoration-color: var(--border); }
.widget__count{
  color: var(--faint);
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
  text-align: right;
}

.skills__grid,
.projects__grid{
  display:flex;
  flex-direction: column;
  gap: 14px;
}
.skills__grid .widget,
.projects__grid .widget{
  box-shadow: var(--shadow);
  padding: 12px 14px;
}
.projects__grid .widget{
  overflow: hidden;
}
.skills__grid .widget__title,
.projects__grid .widget__title{
  font-size: 14px;
  letter-spacing: .2px;
  text-transform: none;
  color: var(--text);
  margin-bottom: 12px;
}
.skills__grid .widget p,
.projects__grid .widget p{
  margin: 0;
}

.projects__grid .project-shot{
  margin: 12px 0 0;
}
.projects__grid .project-shot__link{
  display: block;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  /* Tight shadow on the shot (kept small so it stays inside the project panel). */
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.06),
    0 3px 10px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.45s ease;
}
.projects__grid .project-shot__link::after{
  content: "↗";
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-size: 14px;
  line-height: 1;
  color: var(--text);
  pointer-events: none;
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: translate(4px, -4px) scale(0.92);
  transition:
    opacity 0.4s ease,
    transform 0.45s cubic-bezier(0.34, 1.1, 0.64, 1);
}
.projects__grid .project-shot__link:hover,
.projects__grid .project-shot__link:focus-visible{
  text-decoration: none;
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.07),
    0 6px 16px rgba(0, 0, 0, 0.1),
    0 0 0 1px color-mix(in srgb, var(--accent) 22%, var(--border));
}
.projects__grid .project-shot__link:hover::after,
.projects__grid .project-shot__link:focus-visible::after{
  opacity: 1;
  transform: translate(0, 0) scale(1);
}
.projects__grid .project-shot__link:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.projects__grid .project-shot img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  position: relative;
  z-index: 0;
  transform-origin: center center;
  transition:
    transform 0.68s cubic-bezier(0.34, 1.1, 0.64, 1),
    border-color 0.5s ease,
    filter 0.58s ease,
    box-shadow 0.65s ease;
}
.projects__grid .project-shot__link:hover img,
.projects__grid .project-shot__link:focus-visible img{
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  transform: scale(1.028);
  filter: brightness(1.04) saturate(1.06);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
}

@media (prefers-reduced-motion: reduce){
  .projects__grid .project-shot__link,
  .projects__grid .project-shot__link::after,
  .projects__grid .project-shot img{
    transition-duration: 0.01ms;
  }
  .projects__grid .project-shot__link:hover::after,
  .projects__grid .project-shot__link:focus-visible::after{
    transform: none;
  }
  .projects__grid .project-shot__link:hover img,
  .projects__grid .project-shot__link:focus-visible img{
    transform: none;
    filter: none;
  }
}

.contact__grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.contact__grid .widget{
  padding: 12px 14px;
  border: none;
}
.contact__grid .widget__title{
  font-size: 14px;
  letter-spacing: .2px;
  text-transform: none;
  color: var(--text);
  margin-bottom: 6px;
}
.contact__grid .widget p{
  margin: 0;
}

/*
  Opt-in flat tiles: no shadow / elevation. Use on specific .widget cells only, e.g. class="widget widget--flat".
  Placed after .skills__grid .widget / .projects__grid .widget so it wins when combined on the same element.
*/
.widget.widget--flat{
  box-shadow: none;
}

@media (max-width: 960px){
  .contact__grid{ grid-template-columns: 1fr; }
}

.tag-cloud{ display:flex; flex-wrap: wrap; gap: 8px; }
.tag{
  --tag-h: 210;
  --tag-s: 92%;
  --tag-l: 60%;
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--tag-color, hsl(var(--tag-h) var(--tag-s) var(--tag-l))) 42%, var(--border));
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
}
.tag:hover{
  text-decoration: none;
  background: var(--card-bg-hover);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tag-color, hsl(var(--tag-h) var(--tag-s) var(--tag-l))) 18%, transparent);
}
.tag__count{ color: var(--faint); font-size: 12px; }
.tag--active{
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--tag-color, hsl(var(--tag-h) var(--tag-s) var(--tag-l))) 55%, transparent),
    0 0 0 4px color-mix(in srgb, var(--tag-color, hsl(var(--tag-h) var(--tag-s) var(--tag-l))) 18%, transparent);
}

.toc a{ color: var(--muted); font-size: 13px; }
.toc a:hover{ color: var(--text); text-decoration: none; }
.toc__item{ padding: 6px 8px; border-radius: 10px; border: 1px solid transparent; }
.toc__item:hover{ background: var(--surface); border-color: var(--border); }
.toc__item--active{ background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 15%, transparent), var(--surface)); border-color: var(--border); }
.toc__indent-2{ padding-left: 18px; }
.toc__indent-3{ padding-left: 28px; }

/* Make the entire TOC row clickable (not just text). */
.toc__item{
  padding: 0;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.toc__item > a{
  display: block;
  width: 100%;
  padding: 6px 8px;
  border-radius: 10px;
}
.toc__indent-2 > a{ padding-left: 18px; }
.toc__indent-3 > a{ padding-left: 28px; }

/* Anchor offset so headings aren't hidden under sticky topbar. */
[data-article] h2,
[data-article] h3,
[data-article] h4{
  scroll-margin-top: 86px;
}
.toc__indent-4{ padding-left: 38px; }

.pill{
  display:inline-flex;
  align-items:center;
  gap: 6px;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  font-size: 12px;
  color: var(--muted);
}

.button{
  appearance:none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 9px 12px;
  border-radius: 12px;
  font-weight: 650;
  cursor: pointer;
  display:inline-flex;
  align-items:center;
  gap: 8px;
  user-select: none;
}
.button:hover{ text-decoration: none; background: transparent; }
.button:focus{ outline: none; box-shadow: var(--ring); }
.button--ghost{
  background: transparent;
  color: var(--muted);
}
.button--ghost:hover{ color: var(--text); background: var(--surface); }

.muted{ color: var(--muted); }
.small{ font-size: 13px; }

.content{
  padding: 18px 18px;
  border-radius: var(--radius);
  background: var(--panel-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  max-width: 100%;
  overflow-wrap: break-word;
}
.content h1{ margin-top: 0; }
.content h2{ margin-top: 22px; }
.content p{ color: var(--text); }
.content[data-article] a{
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.12em;
  text-decoration-color: color-mix(in srgb, var(--text) 28%, transparent);
}
.content[data-article] a:hover{
  text-decoration-color: color-mix(in srgb, var(--text) 45%, transparent);
}
.content code{
  font-family: var(--mono);
  font-size: .95em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}
.content pre{
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  overflow:auto;
}
.content pre code{ background: transparent; border: 0; padding: 0; }
.content[data-article] img{
  max-width: 100%;
  height: auto;
}

/*
  Article <pre> with pretty-printed <code>: add class="pre--dedent" on <pre>.
  main.js strips common leading whitespace per line (keeps relative indent for YAML, etc.),
  trims ends, and removes whitespace-only nodes around <code>. Use white-space: pre on code.
*/
.content[data-article] pre.pre--dedent{
  margin: 12px 0;
}
.content[data-article] pre.pre--dedent > code{
  display: block;
  white-space: pre;
  text-align: left;
}
.content[data-article] figure.article-figure{
  margin: 16px 0;
}
.content[data-article] figure.article-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.content[data-article] figure.article-figure figcaption{
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}

.post-header{
  display:flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.post-title{ margin: 0; }
.post-meta{ color: var(--muted); display:flex; flex-wrap:wrap; gap: 10px; font-size: 13px; }

.form{ display:flex; flex-direction: column; gap: 12px; }
.form-row{ display:flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.input{
  padding: 9px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  color: var(--text);
  font-size: 14px;
}
.input::placeholder{ color: var(--faint); }
.input--sm{ padding: 7px 9px; font-size: 13px; border-radius: 11px; }
.input--color{
  width: 50px;
  height: 27px;
  min-width: 50px;
  min-height: 27px;
  padding: 2px 4px;
  border-radius: 11px;
  cursor: pointer;
}
.colorpick{ position: relative; display: inline-flex; }
.colorpick__btn{
  width: 50px;
  height: 27px;
  min-width: 50px;
  min-height: 27px;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  cursor: pointer;
  padding: 0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.colorpick__btn:focus{ outline:none; box-shadow: var(--ring); }
.colorpick__dot{
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: var(--swatch, transparent);
}
.colorpick__popover{
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 50;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  box-shadow: var(--shadow);
  min-width: 220px;
}
.colorpick__grid{
  display:grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 8px;
}
.colorpick__swatch{
  appearance: none;
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: var(--swatch, transparent);
  cursor:pointer;
  padding:0;
}
.colorpick__swatch:hover{
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--swatch, var(--accent)) 18%, transparent);
}
.colorpick__swatch[aria-checked="true"]{
  outline: none;
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--swatch, var(--accent)) 60%, transparent),
    0 0 0 4px color-mix(in srgb, var(--swatch, var(--accent)) 18%, transparent);
}
.colorpick__actions{ display:flex; gap: 8px; margin-top: 10px; }
.colorpick__textbtn{
  appearance:none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}
.colorpick__textbtn:hover{ color: var(--text); background: var(--surface); }
.tags-manager{ display:flex; flex-direction: column; gap: 10px; }
.tags-manager__status:empty{ display: none; }
.tag-row{
  display:grid;
  grid-template-columns: 1fr 1fr 110px minmax(88px, max-content);
  gap: 10px;
  align-items: center;
  padding: 10px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel-bg);
}
.tag-row > input.input{
  width: 100%;
  min-width: 0;
}
.tag-row > .colorpick{
  justify-self: start;
}
.tag-row > .button{
  justify-self: stretch;
  width: 100%;
  min-width: 0;
  white-space: nowrap;
}
.tag-row__left{ display:flex; align-items:center; gap: 10px; min-width: 0; }
.tag-row__meta{ color: var(--muted); font-size: 13px; white-space: nowrap; }
.tag-row--readonly{
  grid-template-columns: 1fr 28px;
}
.tag-row__swatch{
  width: 22px;
  height: 22px;
  border-radius: 8px;
  border: 1px solid var(--border);
  flex-shrink: 0;
  justify-self: end;
}
.form[data-tags-mode="readonly"] .tags-manager{ margin-top: 4px; }
.button--danger{
  border-color: color-mix(in srgb, var(--border) 55%, rgba(255,0,0,.4));
  background: transparent;
  color: var(--text);
}
.button--danger:hover{
  background: transparent;
}

@media (max-width: 960px){
  .main-inner{ grid-template-columns: 1fr; }
  .topbar__inner{ grid-template-columns: 1fr; }
  .rail{ position: static; }
  /* Rail stacks below the article; hide the scrollspy TOC to save vertical space on narrow viewports. */
  .rail .widget.toc{ display: none; }
}

@media (max-width: 820px){
  .sidebar__collapseDock{
    display: none;
  }
  :root{
    --layout-pad-x: 16px;
    --rail-gap: 16px;
  }
  .app{
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "main";
  }
  .sidebar{
    position: fixed;
    left: 12px;
    right: auto;
    top: 60px;
    bottom: max(8px, env(safe-area-inset-bottom, 0px));
    width: 160px;
    max-width: calc(100vw - 24px);
    height: auto;
    max-height: none;
    overflow-x: hidden;
    overflow-y: hidden;
    box-sizing: border-box;
    padding: 10px 12px max(18px, calc(14px + env(safe-area-inset-bottom, 0px)));
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s ease, transform .15s ease;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    z-index: 30;
    align-items: stretch;
  }
  body[data-sidebar-open="true"] .sidebar{
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  /* Blur page below the top bar; top row (hamburger) stays sharp. Matches .sidebar top offset. */
  .sidebar-backdrop{
    position: fixed;
    inset: 60px 0 0 0;
    z-index: 25;
    margin: 0;
    padding: 0;
    border: 0;
    background: color-mix(in srgb, var(--bg) 42%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    pointer-events: auto;
    cursor: default;
  }
  .sidebar-backdrop[hidden]{
    display: none !important;
    pointer-events: none;
  }
  .sidebar__chunk{
    flex: 1 1 0;
    min-height: 0;
    width: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    gap: 18px;
  }
  /* Overlay drawer: align logo + site title with nav (desktop sidebar keeps centered brand). */
  .sidebar .brand__right{
    justify-content: flex-start;
    margin-bottom: 6px;
  }
  .sidebar .sidebar__brandRow{
    justify-content: flex-start;
  }
  .sidebar .sidebar__brandRow > div{
    text-align: left;
    width: auto;
    max-width: 100%;
  }
  /* Same horizontal start as .nav (4px) + .nav__item (10px) → icon column. */
  .sidebar .sidebar__brand{
    padding: 6px 6px 4px 14px;
  }  
  .sidebar .brand__logo{
    width: 95px;
    height: auto;
    max-height: 96px;
    object-fit: contain;
    border-radius: 12px;
  }
  .sidebar .brand{
    font-size: 15px;
  }
  .sidebar .brand__sub{
    margin-top: 2px;
    font-size: 12px;
  }
  .sidebar .nav{
    gap: 4px;
    padding: 0 4px;
  }
  .sidebar .nav__item{
    padding: 8px 10px;
  }
  .sidebar .sidebar__footer{
    flex-shrink: 0;
    gap: 6px;
    margin-bottom: 0;
    padding: 2px 4px 4px;
    align-self: stretch;
    width: 100%;
    box-sizing: border-box;
  }
  .sidebar .sidebar__footer > .muted.small{
    display: none;
  }
  /* Align with nav row; typography matches .nav__item > span; look ≠ nav pill. */
  .sidebar .sidebar__footer [data-theme-toggle]{
    width: 100%;
    box-sizing: border-box;
    justify-content: flex-start;
    padding: 8px 10px;
    gap: 10px;
    border-radius: 10px;
    border: 1px dashed color-mix(in srgb, var(--border) 88%, var(--accent) 12%);
    background: color-mix(in srgb, var(--surface) 40%, transparent);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.55;
  }
  .sidebar .sidebar__footer [data-theme-toggle] .button__text{
    font-size: inherit;
    line-height: inherit;
    font-weight: 500;
    letter-spacing: 0.01em;
  }
  .sidebar .sidebar__footer [data-theme-toggle]:hover{
    background: color-mix(in srgb, var(--surface) 75%, transparent);
    color: var(--text);
    border-color: color-mix(in srgb, var(--border) 65%, var(--accent) 35%);
    border-style: dashed;
  }
  .button.topbar__menu,
  .button.topbar__theme{
    display: inline-flex;
  }
  .topbar__search{ display:none; }
  .main{ padding: 18px var(--layout-pad-x) 30px; }
  .content{
    padding: 16px 14px;
  }

  /* One row: menu | breadcrumb (fills) | theme. Search hidden on this breakpoint. */
  .topbar__inner,
  .topbar__inner:not(:has(.topbar__search)){
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-rows: auto;
    gap: 10px 12px;
    align-items: center;
  }
  .topbar__inner:has(.topbar__search){
    align-items: center;
  }
  .topbar__lead{
    display: contents;
  }
  .topbar__tools{
    display: contents;
  }
  .topbar__lead > div:first-child{
    grid-column: 1;
    grid-row: 1;
  }
  /* Crumb wrapper: same row as menu, center column (nav.topbar__crumb inside). */
  .topbar__lead > div:nth-child(2){
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
  }
  .topbar__tools > div:first-child{
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
  }
  .topbar__tools > div:last-child:not(:only-child){
    display: none;
  }
}

/* Mobile drawer open: lock page scroll (JS also sets body position:fixed for iOS). */
html.sidebar-scroll-lock{
  overflow: hidden;
  overscroll-behavior: none;
}

@media (min-width: 821px){
  .sidebar-backdrop{
    display: none !important;
    pointer-events: none;
  }
  html.sidebar-scroll-lock{
    overflow: visible;
    overscroll-behavior: auto;
  }
}

@media (max-width: 820px) and (prefers-reduced-transparency: reduce){
  .sidebar-backdrop{
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: color-mix(in srgb, var(--bg) 72%, transparent);
  }
}

@media (max-width: 720px){
  .tag-row{ grid-template-columns: 1fr; }
  .tag-row--readonly{
    grid-template-columns: 1fr auto;
    justify-items: stretch;
  }
  .tag-row--readonly .tag-row__swatch{ justify-self: end; }
}