:root {
  --r-background-color: #000000;
  --r-main-color: #f2f2f2;
  --r-heading-color: #ffffff;
  --r-link-color: #8ec5ff;
  --r-selection-background-color: #1f4e79;
  --r-progress-color: #ffb347;
}

.reveal {
  font-size: 32px;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4 {
  text-transform: none;
  letter-spacing: 0.01em;
  font-weight: 600;
}

.reveal .subtitle,
.reveal .quarto-title-author,
.reveal .quarto-title-affiliation {
  color: #d0d0d0;
}

.reveal .slide-logo {
  display: block !important;
  position: fixed !important;
  top: 18px !important;
  left: 18px !important;
  right: auto !important;
  bottom: auto !important;
  max-height: 54px !important;
  max-width: 140px !important;
  z-index: 1000 !important;
}

.reveal .slide-number {
  color: #d8d8d8 !important;
  font-size: 0.55em !important;
}

.code-copy-button,
.code-copy-button-tooltip,
.reveal .code-copy-button,
.reveal .code-copy-button-tooltip {
  display: none !important;
}

.reveal .progress {
  color: #ffb347 !important;
}

.reveal .progress span {
  background: #ffb347 !important;
}

.reveal ul,
.reveal ol {
  display: block !important;
  text-align: left !important;
  margin-left: 1em !important;
  padding-left: 0.8em !important;
}
.reveal .columns {
  align-items: center;
}

/* Widget controls */
.fit-widget input:not([type="range"]),
.fit-widget select,
.fit-widget button {
  color: #111 !important;
  background: #f2f2f2 !important;
  border: 1px solid #999 !important;
}

.fit-widget input[type="range"] {
  border: none !important;
  background: transparent !important;
}

.fit-widget button {
  font-weight: 600;
}

.fit-widget label,
.fit-widget .observablehq,
.fit-widget .observablehq--inspect {
  color: #fff !important;
}

.clt-widget input:not([type="range"]),
.clt-widget select,
.clt-widget button {
  color: #111 !important;
  background: #f2f2f2 !important;
  border: 1px solid #999 !important;
}

.clt-widget input[type="range"] {
  width: 280px !important;
  border: none !important;
  background: transparent !important;
  accent-color: #ffb347;
}

.clt-widget label,
.clt-widget .observablehq,
.clt-widget .observablehq--inspect {
  color: #fff !important;
}

.clt-widget .observablehq--inspect {
  display: none !important;
}

.clt-widget .observablehq {
  margin: 0.15rem 0;
}

.clt-widget .clt-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.clt-widget .clt-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  font-size: 0.62em;
  color: #f2f2f2;
}

.reveal .table-scroll {
  max-height: 11.5em;
  overflow-y: auto;
  margin: 0.3em auto 0.5em auto;
  padding-right: 0.15em;
}

.reveal .table-scroll table {
  width: 100%;
  font-size: 0.62em;
}

/* Callouts */
.reveal .slides section .callout {
  margin-top: 0.8em;
  margin-bottom: 0.8em;
  border-radius: 16px;
  border-left-width: 6px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: none;
}

.reveal .slides section .callout .callout-header {
  background: transparent !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 0.35em;
  margin-bottom: 0.45em;
}

.reveal .slides section .callout .callout-title {
  font-size: 0.95em;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none;
}

.reveal .slides section .callout .callout-body {
  font-size: 0.88em;
  line-height: 1.35;
}

.reveal .slides section .defbox {
  border-left-color: #4ea1ff !important;
  background: rgba(78, 161, 255, 0.1) !important;
}

.reveal .slides section .thmbox {
  border-left-color: #b388ff !important;
  background: rgba(179, 136, 255, 0.1) !important;
}

.reveal .slides section .exbox {
  border-left-color: #ffb74d !important;
  background: rgba(255, 183, 77, 0.12) !important;
}

.reveal .slides section .solbox {
  border-left-color: #66bb6a !important;
  background: rgba(102, 187, 106, 0.1) !important;
}

.reveal .slides section .remarkbox {
  border-left-color: #90a4ae !important;
  background: rgba(144, 164, 174, 0.12) !important;
}

.reveal .slides section .proofbox {
  border-left-color: #ef5350 !important;
  background: rgba(239, 83, 80, 0.1) !important;
}

.reveal .slides section .callout p,
.reveal .slides section .callout li {
  margin-top: 0.25em;
  margin-bottom: 0.25em;
}

.reveal .slides section .callout ul,
.reveal .slides section .callout ol {
  margin-top: 0.35em;
  margin-bottom: 0.1em;
}

/* Slide menu (sidebar) colors */
.slide-menu-wrapper .slide-menu {
  background-color: #16354d !important;
}

.slide-menu-wrapper .slide-menu-items {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.slide-menu-wrapper .slide-menu-item,
.slide-menu-wrapper .slide-menu-item-vertical,
.slide-menu-wrapper .slide-menu-panel,
.slide-menu-wrapper .slide-menu-toolbar > li {
  color: #d7e6f4 !important;
}

.slide-menu-wrapper .slide-menu-item,
.slide-menu-wrapper .slide-tool-item {
  border-top: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.slide-menu-wrapper .active-menu-panel li.selected {
  background-color: #23608c !important;
  color: #ffffff !important;
}

.slide-menu-wrapper .active-menu-panel li.active {
  color: #ffffff !important;
}

.reveal .slide-menu-button {
  left: 10px !important;
  bottom: 10px !important;
  padding: 2px !important;
  border-radius: 8px !important;
  background: rgba(22, 53, 77, 0.8) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.reveal .slide-menu-button .fa-bars::before {
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="rgb(255, 191, 97)" class="bi bi-list" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M2.5 12a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5z"/></svg>') !important;
}


.reveal .taskbox {
  margin-top: 0.6em;
  padding: 0.9em 1.2em;
  border-radius: 18px;
  border: 2px solid rgba(255, 215, 120, 0.78);
  background: rgba(255, 215, 120, 0.10);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.04) inset;
  color: #f5f1e8 !important;
}

/* весь обычный текст внутри */
.reveal .taskbox,
.reveal .taskbox p,
.reveal .taskbox li,
.reveal .taskbox ul,
.reveal .taskbox ol,
.reveal .taskbox strong,
.reveal .taskbox em,
.reveal .taskbox small,
.reveal .taskbox span,
.reveal .taskbox div {
  color: #f5f1e8 !important;
}

/* заголовок задачи */
.reveal .taskbox h3,
.reveal .taskbox h4 {
  margin-top: 0;
  margin-bottom: 0.45em;
  color: #ffd67a !important;
}

/* подсказка */
.reveal .taskbox .hint {
  margin-top: 0.8em;
  font-size: 0.88em;
  color: #e8dcc0 !important;
  opacity: 1;
}

/* формулы */
.reveal .taskbox .math,
.reveal .taskbox .MathJax,
.reveal .taskbox mjx-container {
  color: #f5f1e8 !important;
}

/* если MathJax рисует SVG */
.reveal .taskbox mjx-container svg {
  fill: currentColor !important;
}

/* номер задачи */
.reveal .taskbox .tasknum {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffd67a !important;
}

.reveal .slides section {
  text-align: left !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

.reveal .slides section > * {
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal p,
.reveal ul,
.reveal ol,
.reveal li {
  text-align: left !important;
}

/* temporary debug background */
/* debug: границы области слайда */
/*:root {
  --r-background-color: #00ff00;
}
.reveal .slides section {
  outline: 2px dashed red !important;
  outline-offset: 0 !important;
}
*/