:root {
  color-scheme: light;
  font-family: "Aptos", "Segoe UI Variable Text", "Microsoft YaHei UI", sans-serif;
  --d2-cream: #f4efe6;
  --d2-paper: #fffaf1;
  --d2-ink: #1d2b29;
  --d2-ink-soft: #42534f;
  --d2-asphalt: #23312d;
  --d2-leaf: #557466;
  --d2-leaf-deep: #31584a;
  --d2-sun: #e9b262;
  --d2-coral: #c8633f;
  --d2-coral-action: #a94f32;
  --d2-indigo: #2c3153;
  --d2-line: rgba(29, 43, 41, 0.17);
  --d2-line-strong: rgba(29, 43, 41, 0.34);
  --d2-shadow: 0 24px 60px rgba(39, 46, 41, 0.15);
  --d2-shadow-soft: 0 12px 30px rgba(39, 46, 41, 0.11);
  --sf-canvas: var(--d2-cream);
  --sf-surface: var(--d2-paper);
  --sf-surface-subtle: #eee7db;
  --sf-ink: var(--d2-ink);
  --sf-muted: var(--d2-ink-soft);
  --sf-line: var(--d2-line);
  --sf-strong-line: var(--d2-line-strong);
  --sf-focus: var(--d2-coral);
  --sf-radius-sm: 12px;
  --sf-radius-md: 22px;
}

body.d2-page,
body.d2-board {
  overflow-x: clip;
  background:
    radial-gradient(circle at 16% 4%, rgba(233, 178, 98, 0.23), transparent 30rem),
    linear-gradient(135deg, #f7f1e8 0%, #eee8dc 56%, #e6e4d9 100%);
  color: var(--d2-ink);
}

body.d2-page::before,
body.d2-board::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(
      116deg,
      transparent 0 68%,
      rgba(85, 116, 102, 0.08) 68% 68.45%,
      transparent 68.45% 72%,
      rgba(200, 99, 63, 0.06) 72% 72.35%,
      transparent 72.35%
    );
  content: "";
  pointer-events: none;
}

.d2-page button,
.d2-page a,
.d2-board a {
  -webkit-tap-highlight-color: transparent;
}

.d2-page button:focus-visible,
.d2-page a:focus-visible,
.d2-board a:focus-visible,
.d2-board iframe:focus-visible {
  outline: 3px solid var(--d2-coral);
  outline-offset: 3px;
}

.d2-page .sf-shell {
  border-right: 1px solid rgba(255, 255, 255, 0.7);
  border-left: 1px solid rgba(255, 255, 255, 0.7);
  background:
    radial-gradient(circle at 92% 7%, rgba(233, 178, 98, 0.18), transparent 19rem),
    var(--d2-paper);
  box-shadow: var(--d2-shadow);
}

.d2-page .sf-review-notice {
  position: relative;
  z-index: 5;
  padding: 6px 18px;
  border-color: rgba(255, 255, 255, 0.12);
  background: var(--d2-asphalt);
  color: rgba(255, 250, 241, 0.75);
  font-size: 0.64rem;
  letter-spacing: 0.015em;
}

.d2-page .sf-title,
.d2-board h1,
.d2-board h2,
.d2-board h3 {
  font-family: "Bahnschrift SemiCondensed", "Aptos Display", "Microsoft YaHei UI", sans-serif;
  font-stretch: condensed;
  font-weight: 650;
  letter-spacing: -0.035em;
}

.d2-page .sf-title {
  color: var(--d2-ink);
}

.d2-page .sf-eyebrow {
  color: var(--d2-leaf-deep);
  font-size: 0.67rem;
  letter-spacing: 0.15em;
}

.d2-page .sf-state-badge,
.d2-page .sf-identity {
  min-height: 32px;
  border-color: rgba(49, 88, 74, 0.25);
  background: rgba(255, 250, 241, 0.8);
  color: var(--d2-leaf-deep);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.d2-page .sf-action,
.d2-page .sf-mode {
  min-height: 44px;
  border-radius: 999px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease;
}

.d2-page .sf-action:hover,
.d2-page .sf-mode:hover {
  transform: translateY(-1px);
}

.d2-page .sf-action--primary {
  border-color: var(--d2-coral-action);
  background: var(--d2-coral-action);
  color: #fffaf2;
  box-shadow: 0 9px 22px rgba(200, 99, 63, 0.24);
}

.d2-page .sf-action--secondary,
.d2-page .sf-mode {
  border-color: var(--d2-line-strong);
  background: rgba(255, 250, 241, 0.78);
  color: var(--d2-ink);
}

.d2-page .sf-progress__track {
  height: 7px;
  background: rgba(49, 88, 74, 0.14);
}

.d2-page .sf-progress__fill {
  background: linear-gradient(90deg, var(--d2-leaf-deep), var(--d2-sun));
}

/* Today · a compact real-life task lane */

.d2-page--today .sf-today__header {
  position: relative;
  padding: 30px 24px 17px;
}

.d2-page--today .sf-today__header::after {
  position: absolute;
  right: 25px;
  bottom: 0;
  left: 25px;
  height: 1px;
  background: linear-gradient(90deg, var(--d2-coral), rgba(200, 99, 63, 0));
  content: "";
}

.d2-page--today .sf-title {
  max-width: 12ch;
  margin-bottom: 7px;
  font-size: clamp(2.2rem, 9vw, 3rem);
}

.d2-page--today .sf-supporting {
  max-width: 29ch;
  margin-bottom: 0;
  font-size: 0.9rem;
}

.d2-page--today .sf-today__main {
  gap: 13px;
  padding: 0 18px 92px;
}

.d2-page--today .sf-primary-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(126px, 0.67fr);
  min-height: 326px;
  gap: 0;
  overflow: hidden;
  padding: 0;
  border: 1px solid rgba(49, 88, 74, 0.18);
  border-radius: 28px;
  background:
    linear-gradient(120deg, rgba(255, 250, 241, 0.99) 0 57%, rgba(238, 231, 219, 0.9) 77%),
    var(--d2-paper);
  box-shadow: var(--d2-shadow-soft);
}

.d2-page--today .sf-primary-card::before {
  position: absolute;
  z-index: 3;
  top: 20px;
  bottom: 20px;
  left: 0;
  width: 5px;
  border-radius: 0 999px 999px 0;
  background: var(--d2-coral);
  content: "";
}

.d2-page--today .sf-primary-card::after {
  position: absolute;
  z-index: 2;
  inset: 0 34% 0 47%;
  background: linear-gradient(90deg, var(--d2-paper), rgba(255, 250, 241, 0));
  content: "";
  pointer-events: none;
}

.d2-page--today .sf-primary-card__copy {
  position: relative;
  z-index: 4;
  padding: 25px 2px 22px 23px;
}

.d2-page--today .sf-card-title {
  color: var(--d2-ink);
  font-family: "Bahnschrift SemiCondensed", "Aptos Display", sans-serif;
  font-size: 1.55rem;
  letter-spacing: -0.025em;
}

.d2-page--today .sf-primary-card .sf-card-detail {
  max-width: 19ch;
  font-size: 0.83rem;
}

.d2-page--today .sf-primary-card .sf-meta-row {
  display: grid;
  justify-items: start;
  gap: 2px;
}

.d2-page--today .sf-primary-card .sf-progress {
  width: min(100%, 165px);
}

.d2-page--today .sf-primary-card .sf-action {
  min-width: 142px;
  margin-top: auto;
  padding-right: 18px;
  padding-left: 18px;
}

.d2-page--today .sf-primary-card .sf-asset-slot {
  position: relative;
  z-index: 1;
  order: 0;
  min-height: 326px;
  border: 0;
  border-radius: 0;
  background: #f2ede6;
}

.d2-page--today .sf-primary-card .sf-asset {
  object-fit: cover;
  object-position: 50% 8%;
  filter: saturate(0.92) contrast(1.02);
  mix-blend-mode: multiply;
}

.d2-page--today .sf-supporting-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.d2-page--today .sf-supporting-card {
  position: relative;
  min-height: 174px;
  overflow: hidden;
  padding: 15px;
  border-color: var(--d2-line);
  border-radius: 19px;
  background: rgba(255, 250, 241, 0.74);
}

.d2-page--today .sf-supporting-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: var(--d2-leaf);
  content: "";
}

.d2-page--today .sf-supporting-card:last-child::before {
  background: var(--d2-sun);
}

.d2-page--today .sf-supporting-card .sf-card-title {
  margin-bottom: 6px;
  font-size: 1rem;
}

.d2-page--today .sf-supporting-card .sf-card-detail {
  margin-bottom: 10px;
  font-size: 0.72rem;
  line-height: 1.35;
}

.d2-page--today .sf-supporting-card .sf-action {
  padding: 8px 10px;
  font-size: 0.7rem;
}

.d2-page--today .sf-nav {
  overflow: hidden;
  border: 1px solid rgba(29, 43, 41, 0.12);
  border-bottom: 0;
  border-radius: 22px 22px 0 0;
  background: rgba(255, 250, 241, 0.94);
  box-shadow: 0 -10px 28px rgba(29, 43, 41, 0.09);
  backdrop-filter: blur(14px);
}

.d2-page--today .sf-nav__item {
  position: relative;
  min-height: 68px;
  text-decoration: none;
}

.d2-page--today .sf-nav__item.is-active {
  color: var(--d2-coral);
  text-decoration: none;
}

.d2-page--today .sf-nav__item.is-active::after {
  position: absolute;
  bottom: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--d2-coral);
  content: "";
}

/* AI Classroom · the city scene becomes the teaching stage */

.d2-page--classroom {
  background: var(--d2-asphalt);
}

.d2-page--classroom .sf-shell {
  background: var(--d2-asphalt);
  color: var(--d2-paper);
}

.d2-page--classroom .sf-classroom__header {
  padding: 12px 20px 8px;
  border-bottom: 0;
  background: var(--d2-asphalt);
  color: var(--d2-paper);
}

.d2-page--classroom .sf-classroom__header .sf-title,
.d2-page--classroom .sf-classroom__header .sf-supporting,
.d2-page--classroom .sf-classroom__header .sf-eyebrow {
  color: inherit;
}

.d2-page--classroom .sf-classroom__header .sf-title {
  margin-bottom: 3px;
  font-size: clamp(1.45rem, 3vw, 2.3rem);
}

.d2-page--classroom .sf-classroom__header .sf-supporting {
  max-width: 52ch;
  margin-bottom: 0;
  color: rgba(255, 250, 241, 0.72);
  font-size: 0.76rem;
}

.d2-page--classroom .sf-classroom__header .sf-eyebrow {
  margin-bottom: 3px;
  color: var(--d2-sun);
}

.d2-page--classroom .sf-classroom__status {
  gap: 6px;
}

.d2-page--classroom .sf-classroom__status .sf-state-badge,
.d2-page--classroom .sf-classroom__status .sf-identity {
  min-height: 30px;
  border-color: rgba(255, 250, 241, 0.22);
  background: rgba(255, 250, 241, 0.08);
  color: var(--d2-paper);
  box-shadow: none;
}

.d2-page--classroom .sf-classroom__progress {
  padding: 5px 20px 0;
  background: var(--d2-asphalt);
}

.d2-page--classroom .sf-classroom__progress .sf-meta {
  margin-bottom: 3px;
  color: rgba(255, 250, 241, 0.65);
}

.d2-page--classroom .sf-classroom__progress .sf-progress {
  margin: 0 0 5px;
}

.d2-page--classroom .sf-classroom__progress .sf-progress__track {
  background: rgba(255, 250, 241, 0.13);
}

.d2-page--classroom .sf-classroom__progress .sf-progress__fill {
  background: linear-gradient(90deg, var(--d2-sun), var(--d2-coral));
}

.d2-page--classroom .sf-classroom__workspace {
  grid-template-columns: minmax(0, 1fr) minmax(190px, 0.25fr);
  gap: 11px;
  padding: 6px 18px 7px;
  background: var(--d2-asphalt);
}

.d2-page--classroom .sf-classroom__stage {
  grid-template-columns: minmax(150px, 0.34fr) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  min-height: 0;
  gap: 10px;
  padding: 10px;
  border: 1px solid rgba(255, 250, 241, 0.16);
  border-radius: 22px;
  background: #dbd1c2;
  box-shadow: 0 14px 42px rgba(9, 14, 12, 0.28);
}

.d2-page--classroom .sf-classroom__stage::after {
  position: absolute;
  z-index: 0;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(244, 239, 230, 0.88) 0 31%, rgba(244, 239, 230, 0.2) 58%),
    linear-gradient(0deg, rgba(29, 43, 41, 0.27), transparent 60%);
  content: "";
  pointer-events: none;
}

.d2-page--classroom .sf-scene-slot {
  z-index: 0;
  inset: 0;
  min-height: 0;
  border: 0;
  border-radius: 0;
  background: #d7c9b6;
  opacity: 1;
}

.d2-page--classroom .sf-scene-slot .sf-asset {
  object-fit: cover;
  object-position: 48% 52%;
  filter: saturate(0.82) contrast(0.96);
}

.d2-page--classroom .sf-teacher-slot {
  z-index: 1;
  align-self: stretch;
  min-height: 0;
  overflow: visible;
  border: 0;
  background: transparent;
}

.d2-page--classroom .sf-teacher-slot .sf-asset {
  object-fit: cover;
  object-position: 50% 8%;
  filter: saturate(0.92) contrast(1.04);
  mix-blend-mode: multiply;
}

.d2-page--classroom .sf-dialogue {
  z-index: 2;
  align-content: center;
  gap: 7px;
}

.d2-page--classroom .sf-dialogue__turn {
  padding: 8px 12px;
  border-color: rgba(29, 43, 41, 0.13);
  border-radius: 15px 15px 15px 5px;
  background: rgba(255, 250, 241, 0.91);
  color: var(--d2-ink);
  box-shadow: 0 8px 20px rgba(29, 43, 41, 0.11);
  backdrop-filter: blur(8px);
}

.d2-page--classroom .sf-dialogue__turn:nth-child(even) {
  margin-left: 12%;
  border-radius: 15px 15px 5px;
  background: rgba(238, 228, 210, 0.93);
}

.d2-page--classroom .sf-dialogue__text {
  margin: 3px 0;
  color: var(--d2-ink);
  font-size: clamp(1rem, 2.2vw, 1.42rem);
}

.d2-page--classroom .sf-dialogue__speaker,
.d2-page--classroom .sf-dialogue__support,
.d2-page--classroom .sf-dialogue__translation {
  color: var(--d2-ink-soft);
  font-size: 0.66rem;
}

.d2-page--classroom .sf-classroom__side {
  position: relative;
  overflow: hidden;
  padding: 15px;
  border-color: rgba(233, 178, 98, 0.28);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(255, 250, 241, 0.98), rgba(238, 231, 219, 0.97));
  color: var(--d2-ink);
}

.d2-page--classroom .sf-classroom__side::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--d2-sun), var(--d2-coral));
  content: "";
}

.d2-page--classroom .sf-classroom__side .sf-card-title {
  margin-bottom: 5px;
  font-size: 1.05rem;
}

.d2-page--classroom .sf-classroom__side .sf-card-detail {
  margin-bottom: 8px;
  font-size: 0.73rem;
}

.d2-page--classroom .sf-signal-list {
  gap: 0;
  margin-top: 9px;
}

.d2-page--classroom .sf-signal-list__item {
  padding: 6px 0;
  border-color: var(--d2-line);
  color: var(--d2-ink-soft);
  font-size: 0.66rem;
}

.d2-page--classroom .sf-classroom__controls {
  gap: 12px;
  padding: 7px 18px 9px;
  border-color: rgba(29, 43, 41, 0.12);
  background: var(--d2-cream);
  color: var(--d2-ink);
}

.d2-page--classroom .sf-mode-list {
  gap: 6px;
}

.d2-page--classroom .sf-mode {
  padding: 6px 14px;
  font-size: 0.72rem;
}

.d2-page--classroom .sf-mode.is-selected {
  border-color: var(--d2-indigo);
  background: var(--d2-indigo);
  color: var(--d2-paper);
}

.d2-page--classroom .sf-primary-control {
  gap: 9px;
}

.d2-page--classroom .sf-primary-control .sf-action {
  min-width: 126px;
  padding: 8px 17px;
}

.d2-page--classroom .sf-primary-control__helper {
  max-width: 180px;
}

.d2-page--classroom .sf-helper {
  font-size: 0.65rem;
  line-height: 1.25;
}

/* Customer review board */

.d2-board {
  min-width: 320px;
}

.d2-board__shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 60px;
}

.d2-board__status {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 14px;
  border: 1px solid rgba(255, 250, 241, 0.35);
  border-radius: 999px;
  background: rgba(29, 43, 41, 0.74);
  color: var(--d2-paper);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.d2-board__hero {
  position: relative;
  display: grid;
  min-height: 390px;
  overflow: hidden;
  border-radius: 34px;
  background: var(--d2-asphalt);
  box-shadow: var(--d2-shadow);
  isolation: isolate;
}

.d2-board__hero::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(20, 31, 27, 0.92) 0 38%, rgba(20, 31, 27, 0.3) 70%, rgba(20, 31, 27, 0.04)),
    linear-gradient(0deg, rgba(20, 31, 27, 0.36), transparent 50%);
  content: "";
}

.d2-board__hero-scene {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 52% 48%;
  filter: saturate(0.78) contrast(1.03);
}

.d2-board__hero-copy {
  position: relative;
  z-index: 2;
  align-self: end;
  max-width: 610px;
  padding: 34px;
  color: var(--d2-paper);
}

.d2-board__kicker {
  margin: 18px 0 8px;
  color: var(--d2-sun);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.17em;
}

.d2-board h1 {
  max-width: 10ch;
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 6.8rem);
  line-height: 0.84;
}

.d2-board__lede {
  max-width: 48ch;
  margin: 22px 0 0;
  color: rgba(255, 250, 241, 0.78);
  font-size: 0.98rem;
  line-height: 1.55;
}

.d2-board__section {
  margin-top: 24px;
}

.d2-board__section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.d2-board__section-heading h2 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 3.1rem);
}

.d2-board__section-heading p {
  max-width: 52ch;
  margin: 0;
  color: var(--d2-ink-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

.d2-board__asset-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 0.7fr)) minmax(0, 1.6fr);
  gap: 12px;
}

.d2-board__asset-card {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--d2-line);
  border-radius: 23px;
  background: rgba(255, 250, 241, 0.78);
  box-shadow: var(--d2-shadow-soft);
}

.d2-board__asset-card img {
  display: block;
  width: 100%;
  height: 270px;
  object-fit: cover;
}

.d2-board__asset-card--character img {
  object-position: 50% 9%;
  filter: saturate(0.93);
  mix-blend-mode: multiply;
}

.d2-board__asset-card--scene img {
  object-position: 52% 50%;
}

.d2-board__asset-card figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 50px;
  padding: 11px 14px;
  color: var(--d2-ink-soft);
  font-size: 0.72rem;
}

.d2-board__asset-card figcaption strong {
  color: var(--d2-ink);
}

.d2-board__decision-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.d2-board__decision-card {
  min-width: 0;
  padding: 19px;
  border: 1px solid var(--d2-line);
  border-radius: 22px;
  background: rgba(255, 250, 241, 0.78);
  box-shadow: var(--d2-shadow-soft);
}

.d2-board__decision-card:nth-child(2) {
  border-top: 5px solid var(--d2-leaf);
}

.d2-board__decision-card:nth-child(3) {
  border-top: 5px solid var(--d2-sun);
}

.d2-board__decision-card:nth-child(4) {
  border-top: 5px solid var(--d2-coral);
}

.d2-board__decision-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.d2-board__decision-card p,
.d2-board__decision-card li {
  color: var(--d2-ink-soft);
  font-size: 0.76rem;
  line-height: 1.5;
}

.d2-board__decision-card p {
  margin: 0;
}

.d2-board__decision-card ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 17px;
}

.d2-board__preview-grid {
  display: grid;
  grid-template-columns: minmax(270px, 0.78fr) minmax(0, 1.4fr);
  gap: 14px;
}

.d2-board__preview-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--d2-line);
  border-radius: 24px;
  background: rgba(255, 250, 241, 0.8);
  box-shadow: var(--d2-shadow-soft);
}

.d2-board__preview-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.d2-board__preview-meta strong {
  font-family: "Bahnschrift SemiCondensed", "Aptos Display", sans-serif;
  font-size: 1rem;
}

.d2-board__preview-meta a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--d2-line-strong);
  border-radius: 999px;
  color: var(--d2-ink);
  font-size: 0.7rem;
  font-weight: 800;
  text-decoration: none;
}

.d2-board__preview-stage {
  display: grid;
  place-items: center;
  min-height: 420px;
  overflow: hidden;
  border-radius: 17px;
  background:
    linear-gradient(135deg, rgba(85, 116, 102, 0.12), rgba(233, 178, 98, 0.12)),
    #e8e3d8;
}

.d2-board__viewport {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(29, 43, 41, 0.18);
  background: #ffffff;
  box-shadow: 0 16px 38px rgba(29, 43, 41, 0.2);
}

.d2-board__viewport--today {
  width: 180px;
  height: 388px;
  border-radius: 14px;
}

.d2-board__viewport--classroom {
  width: 591px;
  max-width: 100%;
  height: 273px;
  border-radius: 12px;
}

.d2-board__viewport iframe {
  position: absolute;
  top: 0;
  left: 0;
  border: 0;
}

.d2-board__viewport--today iframe {
  width: 390px;
  height: 844px;
  transform: scale(0.46);
  transform-origin: 0 0;
}

.d2-board__viewport--classroom iframe {
  width: 844px;
  height: 390px;
  transform: scale(0.7);
  transform-origin: 0 0;
}

.d2-board__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 22px;
  padding: 17px 20px;
  border-radius: 18px;
  background: var(--d2-asphalt);
  color: rgba(255, 250, 241, 0.76);
  font-size: 0.73rem;
}

.d2-board__footer strong {
  color: var(--d2-paper);
}

@media (min-width: 761px) and (max-height: 500px) {
  .d2-page--classroom .sf-classroom {
    grid-template-rows: auto auto auto minmax(0, 1fr) auto;
    height: 100vh;
    min-height: 0;
  }

  .d2-page--classroom .sf-review-notice {
    padding-top: 4px;
    padding-bottom: 4px;
    font-size: 0.58rem;
  }

  .d2-page--classroom .sf-classroom__header {
    padding-top: 7px;
    padding-bottom: 4px;
  }

  .d2-page--classroom .sf-classroom__header .sf-title {
    font-size: 1.38rem;
  }

  .d2-page--classroom .sf-classroom__workspace {
    min-height: 0;
  }

  .d2-page--classroom .sf-classroom__side {
    padding: 12px;
  }

  .d2-page--classroom .sf-classroom__controls {
    min-height: 58px;
  }
}

@media (max-width: 900px) {
  .d2-board__decision-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .d2-board__preview-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .d2-page .sf-shell {
    border-right: 0;
    border-left: 0;
  }

  .d2-page--today .sf-today__header {
    padding: 24px 18px 16px;
  }

  .d2-page--today .sf-today__header::after {
    right: 18px;
    left: 18px;
  }

  .d2-page--today .sf-today__main {
    padding-right: 16px;
    padding-left: 16px;
  }

  .d2-page--today .sf-primary-card {
    grid-template-columns: minmax(0, 1fr) minmax(122px, 0.64fr);
  }

  .d2-page--today .sf-primary-card .sf-asset-slot {
    order: 0;
  }

  .d2-page--classroom .sf-classroom {
    grid-template-rows: auto;
    min-height: 100vh;
  }

  .d2-page--classroom .sf-classroom__header {
    gap: 9px;
    padding: 15px 16px 10px;
  }

  .d2-page--classroom .sf-classroom__status {
    justify-content: flex-start;
  }

  .d2-page--classroom .sf-classroom__progress {
    padding-right: 16px;
    padding-left: 16px;
  }

  .d2-page--classroom .sf-classroom__workspace {
    grid-template-columns: 1fr;
    padding: 8px 12px 12px;
  }

  .d2-page--classroom .sf-classroom__stage {
    grid-template-columns: 1fr;
    grid-template-rows: 250px auto;
    min-height: 0;
    padding: 12px;
  }

  .d2-page--classroom .sf-classroom__stage::after {
    background:
      linear-gradient(0deg, rgba(244, 239, 230, 0.94) 0 43%, rgba(244, 239, 230, 0.18) 75%),
      linear-gradient(90deg, rgba(244, 239, 230, 0.76), rgba(244, 239, 230, 0));
  }

  .d2-page--classroom .sf-teacher-slot {
    grid-row: 1;
    width: 68%;
    min-height: 250px;
  }

  .d2-page--classroom .sf-dialogue {
    grid-row: 2;
    gap: 8px;
    padding-top: 8px;
  }

  .d2-page--classroom .sf-dialogue__turn:nth-child(even) {
    margin-left: 7%;
  }

  .d2-page--classroom .sf-classroom__side {
    padding: 17px;
  }

  .d2-page--classroom .sf-classroom__controls {
    grid-template-columns: 1fr;
    padding: 12px 16px 18px;
  }

  .d2-page--classroom .sf-mode-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .d2-page--classroom .sf-mode {
    width: 100%;
  }

  .d2-page--classroom .sf-primary-control {
    align-items: stretch;
    flex-direction: column;
  }

  .d2-page--classroom .sf-primary-control .sf-action,
  .d2-page--classroom .sf-primary-control__helper {
    width: 100%;
    max-width: none;
  }

  .d2-board__shell {
    width: min(100% - 20px, 1180px);
    padding-top: 10px;
  }

  .d2-board__hero {
    min-height: 520px;
    border-radius: 24px;
  }

  .d2-board__hero::after {
    background: linear-gradient(0deg, rgba(20, 31, 27, 0.94) 0 48%, rgba(20, 31, 27, 0.18) 84%);
  }

  .d2-board__hero-copy {
    padding: 24px;
  }

  .d2-board h1 {
    font-size: clamp(3.1rem, 18vw, 5.2rem);
  }

  .d2-board__section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .d2-board__asset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .d2-board__asset-card--scene {
    grid-column: 1 / -1;
  }

  .d2-board__asset-card img {
    height: 215px;
  }

  .d2-board__decision-grid {
    grid-template-columns: 1fr;
  }

  .d2-board__preview-stage {
    min-height: 375px;
  }

  .d2-board__viewport--classroom {
    width: 338px;
    height: 156px;
  }

  .d2-board__viewport--classroom iframe {
    transform: scale(0.4);
  }

  .d2-board__footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 390px) {
  .d2-page--today .sf-title {
    font-size: 2rem;
  }

  .d2-page--today .sf-primary-card {
    grid-template-columns: minmax(0, 1fr) 120px;
  }

  .d2-page--today .sf-primary-card__copy {
    padding-left: 20px;
  }

  .d2-board__asset-card figcaption {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .d2-page .sf-action,
  .d2-page .sf-mode {
    transition: none;
  }

  .d2-page .sf-action:hover,
  .d2-page .sf-mode:hover {
    transform: none;
  }
}

@media (forced-colors: active) {
  body.d2-page,
  body.d2-board,
  .d2-page .sf-shell,
  .d2-board__hero,
  .d2-board__decision-card,
  .d2-board__preview-card {
    background: Canvas;
    color: CanvasText;
  }

  .d2-board__hero-scene {
    opacity: 0.22;
  }
}