/*
 * D1_MODERN_ORIENTAL / INTERNAL_REVIEW_CANDIDATE
 * Candidate visual variables for comparison only. They are not approved Design System tokens.
 */

:root {
  --d1-paper: #f3efe4;
  --d1-paper-bright: #fbf8ef;
  --d1-ink: #17302e;
  --d1-ink-soft: #405c57;
  --d1-celadon: #8da196;
  --d1-celadon-light: #dce2d9;
  --d1-matte: #b3bbb5;
  --d1-tea: #9b6d4d;
  --d1-tea-readable: #855a3b;
  --d1-gold: #b79b61;
  --d1-line: rgba(23, 48, 46, 0.18);
  --d1-shadow: 0 22px 60px rgba(30, 47, 43, 0.12);
  --d1-serif: "Noto Serif SC", "Songti SC", STSong, Georgia, serif;
  --d1-sans: Aptos, "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}

html {
  background: var(--d1-paper);
}

body.d1-page,
body.d1-board {
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 4%, rgba(183, 155, 97, 0.12), transparent 25rem),
    linear-gradient(135deg, rgba(141, 161, 150, 0.09), transparent 42%),
    var(--d1-paper);
  color: var(--d1-ink);
  font-family: var(--d1-sans);
}

.d1-review-bar {
  position: relative;
  z-index: 10;
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 7px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: var(--d1-ink);
  color: #f8f1df;
  font-size: 0.66rem;
  font-weight: 760;
  letter-spacing: 0.14em;
  line-height: 1.35;
  text-align: center;
  text-transform: uppercase;
}

.d1-review-bar__direction {
  color: #d8c99f;
  font-weight: 520;
  letter-spacing: 0.08em;
}

.d1-review-bar__link {
  position: absolute;
  right: 14px;
  min-height: 24px;
  padding: 4px 7px;
  color: #f8f1df;
  font-size: 0.61rem;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.d1-review-bar__link::after {
  content: " ↗";
  color: #d8c99f;
}

.d1-review-bar__link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.d1-page {
  --sf-canvas: var(--d1-paper);
  --sf-surface: var(--d1-paper-bright);
  --sf-surface-subtle: #e8ebe3;
  --sf-ink: var(--d1-ink);
  --sf-muted: var(--d1-ink-soft);
  --sf-line: var(--d1-line);
  --sf-strong-line: rgba(23, 48, 46, 0.38);
  --sf-focus: #8d4d37;
  --sf-radius-sm: 7px;
  --sf-radius-md: 18px;
  --sf-space-1: 4px;
  --sf-space-2: 8px;
  --sf-space-3: 12px;
  --sf-space-4: 16px;
  --sf-space-5: 22px;
  --sf-space-6: 30px;
}

.d1-page .sf-skeleton {
  min-height: calc(100vh - 38px);
}

.d1-page .sf-shell {
  min-height: calc(100vh - 38px);
  font-family: var(--d1-sans);
}

.d1-page .sf-title,
.d1-page .sf-card-title {
  font-family: var(--d1-serif);
  font-weight: 620;
  letter-spacing: -0.025em;
}

.d1-page .sf-title {
  text-wrap: balance;
}

.d1-page .sf-eyebrow {
  color: var(--d1-tea);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
}

.d1-page .sf-review-notice {
  border-color: var(--d1-line);
  background: rgba(243, 239, 228, 0.88);
  color: #64716b;
  font-size: 0.61rem;
  letter-spacing: 0.025em;
}

.d1-page .sf-state-badge {
  gap: 7px;
  border: 0;
  background: #e2e8df;
  color: #35534d;
  letter-spacing: 0.08em;
}

.d1-page .sf-state-badge::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #5e7e70;
  box-shadow: 0 0 0 4px rgba(94, 126, 112, 0.11);
  content: "";
}

.d1-page .sf-action,
.d1-page .sf-mode {
  min-height: 44px;
  border-radius: 7px;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.d1-page .sf-action:hover,
.d1-page .sf-mode:hover {
  transform: translateY(-1px);
}

.d1-page .sf-action:focus-visible,
.d1-page .sf-mode:focus-visible,
.d1-page .sf-nav__item:focus-visible,
.d1-review-bar__link:focus-visible,
.d1-board a:focus-visible,
.d1-board iframe:focus-visible {
  outline: 3px solid #b86a4d;
  outline-offset: 3px;
}

.d1-page .sf-action--primary {
  border-color: var(--d1-ink);
  background: var(--d1-ink);
  box-shadow: 0 10px 24px rgba(23, 48, 46, 0.2);
  color: #fffaf0;
}

.d1-page .sf-action--primary:hover {
  background: #284a46;
  box-shadow: 0 13px 30px rgba(23, 48, 46, 0.24);
}

.d1-page .sf-progress__track {
  height: 5px;
  background: rgba(23, 48, 46, 0.11);
}

.d1-page .sf-progress__fill {
  background: linear-gradient(90deg, var(--d1-tea), var(--d1-gold));
}

.d1-page [data-render-state="ready"] .sf-shell > * {
  animation: d1-reveal 540ms both cubic-bezier(0.2, 0.7, 0.2, 1);
}

.d1-page [data-render-state="ready"] .sf-shell > :nth-child(2) {
  animation-delay: 60ms;
}

.d1-page [data-render-state="ready"] .sf-shell > :nth-child(3) {
  animation-delay: 110ms;
}

.d1-page [data-render-state="ready"] .sf-shell > :nth-child(4) {
  animation-delay: 160ms;
}

@keyframes d1-reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Today: warm editorial paper, compact enough for the 390 × 844 review frame. */

.d1-page--today .sf-today {
  max-width: 440px;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 0 24px, rgba(183, 155, 97, 0.15) 24px 25px, transparent 25px),
    radial-gradient(circle at 86% 11%, rgba(141, 161, 150, 0.18), transparent 12rem),
    var(--d1-paper-bright);
  box-shadow: var(--d1-shadow);
}

.d1-page--today .sf-today__header {
  position: relative;
  padding: 24px 24px 12px 38px;
}

.d1-page--today .sf-today__header::after {
  position: absolute;
  right: 25px;
  bottom: 0;
  width: 42px;
  height: 1px;
  background: var(--d1-gold);
  content: "";
}

.d1-page--today .sf-title {
  max-width: 10ch;
  margin-bottom: 6px;
  color: var(--d1-ink);
  font-size: clamp(1.85rem, 8vw, 2.35rem);
  line-height: 0.98;
}

.d1-page--today .sf-supporting {
  max-width: 32ch;
  margin-bottom: 0;
  font-size: 0.79rem;
}

.d1-page--today .sf-today__main {
  gap: 12px;
  padding: 0 20px 82px 38px;
}

.d1-page--today .sf-primary-card {
  position: relative;
  grid-template-columns: minmax(0, 1.25fr) minmax(118px, 0.75fr);
  min-height: 286px;
  gap: 12px;
  overflow: hidden;
  padding: 17px 12px 15px 17px;
  border: 1px solid rgba(23, 48, 46, 0.11);
  border-radius: 4px 28px 4px 4px;
  background:
    linear-gradient(140deg, rgba(255, 253, 246, 0.96), rgba(226, 231, 220, 0.9));
  box-shadow: 0 16px 35px rgba(36, 55, 50, 0.12);
}

.d1-page--today .sf-primary-card::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(var(--d1-tea), var(--d1-gold));
  content: "";
}

.d1-page--today .sf-primary-card__copy {
  position: relative;
  z-index: 2;
}

.d1-page--today .sf-primary-card .sf-card-title {
  margin-bottom: 5px;
  color: var(--d1-ink);
  font-size: 1.28rem;
}

.d1-page--today .sf-primary-card .sf-card-detail {
  margin-bottom: 9px;
  font-size: 0.76rem;
  line-height: 1.38;
}

.d1-page--today .sf-primary-card .sf-meta {
  margin-bottom: 3px;
  font-size: 0.66rem;
}

.d1-page--today .sf-primary-card .sf-progress {
  width: 100%;
  margin: 4px 0 10px;
}

.d1-page--today .sf-primary-card .sf-action {
  width: 100%;
  min-height: 44px;
  padding: 9px 12px;
  font-size: 0.78rem;
}

.d1-page--today .sf-primary-card .sf-asset-slot {
  order: initial;
  min-height: 248px;
  border: 0;
  border-radius: 60px 60px 14px 14px;
  background:
    radial-gradient(circle at 50% 18%, #cbd0c6, transparent 48%),
    linear-gradient(165deg, #b8c1ba, #aeb7b1);
  box-shadow:
    inset 0 0 32px rgba(249, 245, 233, 0.36),
    0 12px 24px rgba(27, 48, 44, 0.13);
}

.d1-page--today .sf-primary-card .sf-asset-slot::after {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 18px rgba(243, 239, 228, 0.22);
  content: "";
  pointer-events: none;
}

.d1-page--today .sf-primary-card .sf-asset {
  object-fit: cover;
  object-position: 50% 45%;
  filter: saturate(0.92) contrast(1.02);
}

.d1-page--today .sf-supporting-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.d1-page--today .sf-supporting-card {
  position: relative;
  min-height: 150px;
  padding: 13px;
  border: 1px solid var(--d1-line);
  border-radius: 3px;
  background: rgba(251, 248, 239, 0.74);
}

.d1-page--today .sf-supporting-card::before {
  width: 24px;
  height: 2px;
  margin-bottom: 12px;
  background: var(--d1-celadon);
  content: "";
}

.d1-page--today .sf-supporting-card .sf-eyebrow {
  margin-bottom: 4px;
  font-size: 0.55rem;
}

.d1-page--today .sf-supporting-card .sf-card-title {
  margin-bottom: 5px;
  font-size: 0.94rem;
}

.d1-page--today .sf-supporting-card .sf-card-detail {
  margin-bottom: 9px;
  font-size: 0.67rem;
  line-height: 1.35;
}

.d1-page--today .sf-supporting-card .sf-action--secondary {
  min-height: 44px;
  padding: 8px 10px;
  border: 0;
  border-top: 1px solid var(--d1-line);
  border-radius: 0;
  background: transparent;
  color: var(--d1-ink);
  font-size: 0.68rem;
  text-align: left;
}

.d1-page--today .sf-nav {
  max-width: 440px;
  min-height: 66px;
  border-top: 1px solid rgba(23, 48, 46, 0.15);
  background: rgba(251, 248, 239, 0.96);
  backdrop-filter: blur(16px);
}

.d1-page--today .sf-nav__item {
  position: relative;
  min-height: 44px;
  color: #63736d;
  font-size: 0.66rem;
  text-decoration: none;
}

.d1-page--today .sf-nav__item.is-active {
  color: var(--d1-ink);
  text-decoration: none;
}

.d1-page--today .sf-nav__item.is-active::after {
  position: absolute;
  bottom: 8px;
  width: 18px;
  height: 2px;
  background: var(--d1-tea);
  content: "";
}

/* AI Classroom: deep indigo-green focus room with tactile light and one clear stage. */

.d1-page--classroom {
  background: #102725;
}

.d1-page--classroom .d1-review-bar {
  border-color: rgba(240, 226, 190, 0.18);
  background: #0a1d1b;
}

.d1-page--classroom .sf-classroom {
  max-width: none;
  overflow: hidden;
  background:
    radial-gradient(circle at 17% 24%, rgba(177, 153, 96, 0.18), transparent 24rem),
    linear-gradient(145deg, #183633, #102725 58%, #0a1e1d);
  color: #f6f0e2;
}

.d1-page--classroom .sf-review-notice {
  border-color: rgba(240, 226, 190, 0.12);
  background: rgba(10, 29, 27, 0.72);
  color: #b7c3ba;
}

.d1-page--classroom .sf-classroom__header {
  border-color: rgba(240, 226, 190, 0.14);
}

.d1-page--classroom .sf-title {
  margin-bottom: 4px;
  color: #fff9ea;
  font-size: clamp(1.55rem, 3.3vw, 2.45rem);
}

.d1-page--classroom .sf-supporting,
.d1-page--classroom .sf-meta,
.d1-page--classroom .sf-helper {
  color: #b8c7bf;
}

.d1-page--classroom .sf-identity,
.d1-page--classroom .sf-state-badge {
  border-color: rgba(240, 226, 190, 0.24);
  background: rgba(246, 240, 226, 0.08);
  color: #eee3c4;
}

.d1-page--classroom .sf-progress__track {
  background: rgba(255, 255, 255, 0.12);
}

.d1-page--classroom .sf-classroom__workspace {
  grid-template-columns: minmax(0, 1fr) minmax(184px, 0.24fr);
}

.d1-page--classroom .sf-classroom__stage {
  grid-template-columns: minmax(150px, 0.34fr) minmax(0, 1fr);
  border: 1px solid rgba(236, 224, 193, 0.18);
  background: #18312f;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.24);
}

.d1-page--classroom .sf-scene-slot {
  inset: 0;
  border: 0;
  border-radius: 0;
  opacity: 0.48;
  background: #19312e;
}

.d1-page--classroom .sf-scene-slot::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 35, 33, 0.86), rgba(13, 35, 33, 0.22) 42%, rgba(13, 35, 33, 0.58)),
    linear-gradient(0deg, rgba(13, 35, 33, 0.68), transparent 60%);
  content: "";
  pointer-events: none;
}

.d1-page--classroom .sf-scene-slot .sf-asset {
  object-fit: cover;
  filter: saturate(0.72) sepia(0.08) contrast(1.04);
}

.d1-page--classroom .sf-teacher-slot {
  align-self: stretch;
  min-height: 0;
  border: 0;
  border-radius: 84px 84px 18px 18px;
  background:
    radial-gradient(circle at 45% 14%, #c9cdc0, transparent 42%),
    linear-gradient(160deg, #b8beb4, #aeb4ad);
  box-shadow:
    inset 0 0 28px rgba(255, 250, 237, 0.25),
    0 18px 38px rgba(4, 23, 21, 0.36);
}

.d1-page--classroom .sf-teacher-slot .sf-asset {
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(0.9) contrast(1.02);
}

.d1-page--classroom .sf-dialogue {
  gap: 9px;
}

.d1-page--classroom .sf-dialogue__turn {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(247, 240, 222, 0.35);
  border-radius: 3px 18px 18px 18px;
  background: rgba(250, 247, 238, 0.93);
  box-shadow: 0 12px 28px rgba(8, 27, 25, 0.16);
  color: var(--d1-ink);
}

.d1-page--classroom .sf-dialogue__turn[data-speaker="MiTuTu"]::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--d1-gold);
  content: "";
}

.d1-page--classroom .sf-dialogue__speaker {
  color: var(--d1-tea);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.d1-page--classroom .sf-dialogue__text {
  color: var(--d1-ink);
  font-family: var(--d1-serif);
  font-weight: 620;
}

.d1-page--classroom .sf-dialogue__support,
.d1-page--classroom .sf-dialogue__translation {
  color: #536861;
}

.d1-page--classroom .sf-classroom__side {
  border: 0;
  border-radius: 3px 22px 3px 3px;
  background: var(--d1-paper-bright);
  box-shadow: 0 18px 40px rgba(4, 23, 21, 0.22);
  color: var(--d1-ink);
}

.d1-page--classroom .sf-classroom__side .sf-eyebrow {
  color: var(--d1-tea-readable);
}

.d1-page--classroom .sf-classroom__side .sf-card-detail,
.d1-page--classroom .sf-signal-list__item {
  color: #536861;
}

.d1-page--classroom .sf-signal-list__item {
  position: relative;
  padding-left: 14px;
  border-color: var(--d1-line);
}

.d1-page--classroom .sf-signal-list__item::before {
  position: absolute;
  top: 13px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--d1-celadon);
  content: "";
}

.d1-page--classroom .sf-classroom__controls {
  border-color: rgba(240, 226, 190, 0.14);
  background: rgba(8, 27, 25, 0.55);
  backdrop-filter: blur(14px);
}

.d1-page--classroom .sf-mode {
  border-color: rgba(240, 226, 190, 0.3);
  background: rgba(255, 255, 255, 0.04);
  color: #e8e1cf;
}

.d1-page--classroom .sf-mode.is-selected {
  border-color: var(--d1-gold);
  background: var(--d1-gold);
  color: #102725;
}

.d1-page--classroom .sf-action--primary {
  border-color: #efe5ca;
  background: #efe5ca;
  color: var(--d1-ink);
}

.d1-page--classroom .sf-action--primary:hover {
  background: #fff8e9;
}

/* The actual 844 × 390 landscape review target: complete first viewport, no body scroll. */

@media (min-width: 761px) and (max-height: 430px) {
  .d1-page--classroom {
    overflow: hidden;
  }

  .d1-page--classroom .d1-review-bar {
    min-height: 30px;
    padding: 4px 12px;
    font-size: 0.57rem;
  }

  .d1-page--classroom .sf-skeleton,
  .d1-page--classroom .sf-shell {
    height: calc(100vh - 30px);
    min-height: 0;
  }

  .d1-page--classroom .sf-classroom {
    grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  }

  .d1-page--classroom .sf-review-notice {
    padding: 3px 12px;
    font-size: 0.52rem;
    line-height: 1.25;
  }

  .d1-page--classroom .sf-classroom__header {
    gap: 14px;
    padding: 7px 16px 4px;
  }

  .d1-page--classroom .sf-title {
    margin-bottom: 1px;
    font-size: 1.25rem;
    line-height: 1;
  }

  .d1-page--classroom .sf-eyebrow {
    margin-bottom: 3px;
    font-size: 0.5rem;
  }

  .d1-page--classroom .sf-supporting {
    margin-bottom: 0;
    font-size: 0.64rem;
    line-height: 1.25;
  }

  .d1-page--classroom .sf-identity,
  .d1-page--classroom .sf-state-badge {
    min-height: 22px;
    padding: 2px 8px;
    font-size: 0.55rem;
  }

  .d1-page--classroom .sf-classroom__progress {
    padding: 2px 16px 0;
  }

  .d1-page--classroom .sf-classroom__progress .sf-meta {
    margin-bottom: 1px;
    font-size: 0.55rem;
  }

  .d1-page--classroom .sf-classroom__progress .sf-progress {
    margin: 2px 0 3px;
  }

  .d1-page--classroom .sf-classroom__workspace {
    grid-template-columns: minmax(0, 1fr) minmax(154px, 0.23fr);
    gap: 8px;
    min-height: 0;
    padding: 4px 16px 5px;
  }

  .d1-page--classroom .sf-classroom__stage {
    grid-template-columns: minmax(110px, 0.28fr) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    gap: 8px;
    min-height: 0;
    padding: 7px;
  }

  .d1-page--classroom .sf-teacher-slot {
    height: 100%;
    min-height: 0;
    border-radius: 54px 54px 10px 10px;
  }

  .d1-page--classroom .sf-dialogue {
    gap: 5px;
  }

  .d1-page--classroom .sf-dialogue__turn {
    padding: 6px 9px;
    border-radius: 2px 11px 11px;
  }

  .d1-page--classroom .sf-dialogue__speaker,
  .d1-page--classroom .sf-dialogue__support,
  .d1-page--classroom .sf-dialogue__translation {
    font-size: 0.56rem;
    line-height: 1.15;
  }

  .d1-page--classroom .sf-dialogue__text {
    margin: 2px 0;
    font-size: 0.92rem;
    line-height: 1.1;
  }

  .d1-page--classroom .sf-classroom__side {
    min-height: 0;
    overflow: hidden;
    padding: 8px;
    border-radius: 2px 13px 2px 2px;
  }

  .d1-page--classroom .sf-classroom__side .sf-card-title {
    margin-bottom: 3px;
    font-size: 0.82rem;
  }

  .d1-page--classroom .sf-classroom__side .sf-card-detail {
    margin-bottom: 4px;
    font-size: 0.56rem;
    line-height: 1.2;
  }

  .d1-page--classroom .sf-signal-list {
    gap: 0;
    margin-top: 3px;
  }

  .d1-page--classroom .sf-signal-list__item {
    padding: 3px 0 3px 10px;
    font-size: 0.51rem;
    line-height: 1.15;
  }

  .d1-page--classroom .sf-signal-list__item::before {
    top: 7px;
  }

  .d1-page--classroom .sf-classroom__controls {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    padding: 5px 16px 7px;
  }

  .d1-page--classroom .sf-mode-list {
    flex-wrap: nowrap;
    gap: 5px;
  }

  .d1-page--classroom .sf-mode,
  .d1-page--classroom .sf-primary-control .sf-action {
    min-height: 44px;
    padding: 6px 11px;
    font-size: 0.6rem;
  }

  .d1-page--classroom .sf-primary-control {
    gap: 7px;
  }

  .d1-page--classroom .sf-primary-control__helper {
    max-width: 128px;
  }

  .d1-page--classroom .sf-helper {
    font-size: 0.51rem;
    line-height: 1.15;
  }
}

/* 390 × 844 portrait classroom degradation: full reflow, no orientation lock or clipped controls. */

@media (max-width: 760px) {
  .d1-review-bar {
    justify-content: flex-start;
    padding-right: 78px;
    font-size: 0.58rem;
    text-align: left;
  }

  .d1-review-bar__direction {
    display: none;
  }

  .d1-review-bar__link {
    right: 8px;
  }

  .d1-page--today .sf-today__header {
    align-items: flex-start;
    flex-direction: row;
  }

  .d1-page--today .sf-primary-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(112px, 0.75fr);
  }

  .d1-page--today .sf-primary-card .sf-asset-slot {
    order: initial;
    min-height: 248px;
  }

  .d1-page--classroom .sf-classroom {
    overflow: visible;
  }

  .d1-page--classroom .sf-classroom__header {
    gap: 10px;
    padding-top: 17px;
  }

  .d1-page--classroom .sf-classroom__status {
    justify-content: flex-start;
  }

  .d1-page--classroom .sf-classroom__workspace {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .d1-page--classroom .sf-classroom__stage {
    grid-template-columns: 1fr;
    grid-template-rows: 210px auto;
    gap: 12px;
    padding: 12px;
  }

  .d1-page--classroom .sf-teacher-slot {
    grid-column: 1;
    grid-row: 1;
    width: min(52%, 190px);
    min-height: 190px;
    justify-self: center;
    border-radius: 72px 72px 14px 14px;
  }

  .d1-page--classroom .sf-dialogue {
    grid-column: 1;
    grid-row: 2;
  }

  .d1-page--classroom .sf-classroom__side {
    padding: 16px;
  }

  .d1-page--classroom .sf-classroom__controls {
    gap: 12px;
    padding-bottom: 18px;
  }

  .d1-page--classroom .sf-mode-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .d1-page--classroom .sf-mode {
    width: 100%;
  }

  .d1-page--classroom .sf-primary-control__helper {
    max-width: none;
  }
}

@media (max-width: 370px) {
  .d1-page--today .sf-today__header {
    padding-left: 28px;
  }

  .d1-page--today .sf-today__main {
    padding-left: 28px;
  }

  .d1-page--today .sf-primary-card {
    grid-template-columns: 1fr 104px;
  }
}

/* Direction proposal board. */

.d1-board {
  min-width: 320px;
}

.d1-board__shell {
  width: min(1240px, calc(100% - 36px));
  margin: 0 auto;
  padding: 38px 0 64px;
}

.d1-board__header {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 44px;
  align-items: end;
  padding: 42px 0 34px;
  border-bottom: 1px solid var(--d1-line);
}

.d1-board__index {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--d1-tea);
  font-size: 0.68rem;
  font-weight: 760;
  letter-spacing: 0.18em;
}

.d1-board__title {
  max-width: 11ch;
  margin: 0;
  color: var(--d1-ink);
  font-family: var(--d1-serif);
  font-size: clamp(3.1rem, 7vw, 6.8rem);
  font-weight: 520;
  letter-spacing: -0.065em;
  line-height: 0.82;
}

.d1-board__title span {
  display: block;
  margin-top: 14px;
  color: var(--d1-tea);
  font-family: var(--d1-sans);
  font-size: 0.2em;
  font-weight: 680;
  letter-spacing: 0.18em;
  line-height: 1.2;
  text-transform: uppercase;
}

.d1-board__rationale {
  position: relative;
  margin: 0;
  padding: 28px 0 0 34px;
  color: var(--d1-ink-soft);
  font-family: var(--d1-serif);
  font-size: clamp(1.05rem, 2vw, 1.38rem);
  line-height: 1.65;
}

.d1-board__rationale::before {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--d1-gold);
  content: "“";
  font-family: Georgia, serif;
  font-size: 4rem;
  line-height: 1;
}

.d1-board__previews {
  display: grid;
  grid-template-columns: minmax(285px, 0.66fr) minmax(610px, 1.34fr);
  gap: 30px;
  align-items: start;
  margin-top: 36px;
}

.d1-board__preview {
  min-width: 0;
}

.d1-board__preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--d1-line);
  color: var(--d1-ink-soft);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.d1-board__preview-head strong {
  color: var(--d1-ink);
  font-family: var(--d1-serif);
  font-size: 1rem;
  letter-spacing: 0;
  text-transform: none;
}

.d1-device {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(23, 48, 46, 0.25);
  background: #102725;
  box-shadow: 0 26px 70px rgba(30, 47, 43, 0.17);
}

.d1-device--portrait {
  width: 273px;
  height: 591px;
  margin: 0 auto;
  border-radius: 24px;
}

.d1-device--landscape {
  width: 591px;
  height: 273px;
  border-radius: 20px;
}

.d1-device iframe {
  display: block;
  border: 0;
  background: var(--d1-paper-bright);
  transform: scale(0.7);
  transform-origin: 0 0;
}

.d1-device--portrait iframe {
  width: 390px;
  height: 844px;
}

.d1-device--landscape iframe {
  width: 844px;
  height: 390px;
}

.d1-board__analysis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 42px;
  overflow: hidden;
  border: 1px solid var(--d1-line);
  background: var(--d1-line);
}

.d1-board__analysis section {
  min-height: 240px;
  padding: 24px;
  background: rgba(251, 248, 239, 0.88);
}

.d1-board__analysis h2 {
  margin: 0 0 18px;
  color: var(--d1-tea);
  font-family: var(--d1-serif);
  font-size: 1.35rem;
  font-weight: 620;
}

.d1-board__analysis ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  color: var(--d1-ink-soft);
  font-size: 0.82rem;
  line-height: 1.55;
  list-style: none;
}

.d1-board__analysis li {
  position: relative;
  padding-left: 16px;
}

.d1-board__analysis li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--d1-celadon);
  content: "";
}

.d1-board__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--d1-line);
  color: var(--d1-ink-soft);
  font-size: 0.71rem;
  line-height: 1.5;
}

.d1-board__footer a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 10px 15px;
  border: 1px solid var(--d1-ink);
  color: var(--d1-ink);
  font-weight: 720;
  text-decoration: none;
}

.d1-board__footer a:hover {
  background: var(--d1-ink);
  color: var(--d1-paper-bright);
}

@media (max-width: 1040px) {
  .d1-board__previews {
    grid-template-columns: 1fr;
  }

  .d1-device--landscape {
    margin: 0 auto;
  }
}

@media (max-width: 760px) {
  .d1-board__shell {
    width: min(100% - 24px, 620px);
    padding-top: 20px;
  }

  .d1-board__header {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 38px;
  }

  .d1-board__title {
    font-size: clamp(2.8rem, 17vw, 5rem);
  }

  .d1-board__rationale {
    padding-top: 18px;
  }

  .d1-board__previews {
    margin-top: 24px;
  }

  .d1-device--landscape {
    width: min(100%, 591px);
    height: auto;
    aspect-ratio: 844 / 390;
  }

  .d1-device--landscape iframe {
    width: 844px;
    height: 390px;
    transform: scale(calc((100vw - 24px) / 844));
  }

  .d1-board__analysis {
    grid-template-columns: 1fr;
  }

  .d1-board__analysis section {
    min-height: 0;
  }

  .d1-board__footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .d1-page [data-render-state="ready"] .sf-shell > * {
    animation: none;
  }

  .d1-page .sf-action,
  .d1-page .sf-mode {
    transition: none;
  }
}

@media (forced-colors: active) {
  .d1-page--classroom .sf-classroom,
  .d1-page--classroom .sf-classroom__stage,
  .d1-review-bar {
    background: Canvas;
    color: CanvasText;
  }

  .d1-page--classroom .sf-title,
  .d1-page--classroom .sf-supporting,
  .d1-page--classroom .sf-meta,
  .d1-page--classroom .sf-helper,
  .d1-page--classroom .sf-identity,
  .d1-page--classroom .sf-state-badge {
    color: CanvasText;
  }
}