.l4d2-square-root {
  position: relative;
  z-index: 9990;
}

.l4d2-square-root,
.l4d2-square-root * {
  box-sizing: border-box;
}

.l4d2-square__entry {
  position: fixed;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9991;
  width: 76px;
  min-height: 108px;
  padding: 14px 10px;
  border-radius: 14px;
  border: 1px solid rgba(17, 17, 17, 0.45);
  background: rgba(255, 255, 255, 0.28);
  color: #111111;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  box-shadow: 0 10px 24px rgba(16, 24, 40, 0.08);
  transition: transform 0.2s ease, background 0.2s ease;
}

.l4d2-square__entry:hover,
.l4d2-square__entry.is-active {
  background: rgba(255, 255, 255, 0.92);
  transform: translateY(-50%) scale(1.02);
}

.l4d2-square__entry span {
  display: block;
  text-align: center;
  white-space: normal;
  line-height: 1.35;
  font-size: 16px;
  font-weight: 700;
}

.l4d2-square__entry i {
  font-size: 24px;
}

.l4d2-square__overlay,
.l4d2-square__modal {
  position: fixed;
  inset: 0;
  z-index: 9992;
}

.l4d2-square__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.38);
  backdrop-filter: blur(10px);
}

.l4d2-square__window,
.l4d2-square__dialog {
  position: relative;
  margin: 36px auto;
  width: min(1200px, calc(100vw - 48px));
  max-height: calc(100vh - 72px);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 40px 80px rgba(15, 23, 42, 0.18);
  display: flex;
  flex-direction: column;
}

.l4d2-square__dialog {
  width: min(960px, calc(100vw - 48px));
}

.l4d2-square__dialog--wide {
  width: min(1240px, calc(100vw - 48px));
}

.l4d2-square__dialog--detail {
  width: min(1240px, calc(100vw - 48px));
}

.l4d2-square__dialog--my {
  width: min(920px, calc(100vw - 48px));
}

.l4d2-square__dialog--detail > [data-detail-body] {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.l4d2-square__dialog--wide > .l4d2-square__upload-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.l4d2-square__dialog--small {
  width: min(560px, calc(100vw - 48px));
}

.l4d2-square__window-head,
.l4d2-square__dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 24px 0;
}

.l4d2-square__window-head p,
.l4d2-square__dialog-head p,
.l4d2-square__card-body p,
.l4d2-square__detail-section p,
.l4d2-square__record p,
.l4d2-square__empty {
  margin: 0;
  color: #64748b;
  line-height: 1.7;
}

.l4d2-square__eyebrow {
  margin-bottom: 8px;
  color: #94a3b8;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.l4d2-square__title,
.l4d2-square__heading,
.l4d2-square__subheading {
  margin: 0;
  color: #0f172a;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.l4d2-square__title {
  font-size: 32px;
  line-height: 1.2;
}

.l4d2-square__heading {
  font-size: 28px;
  line-height: 1.25;
}

.l4d2-square__subheading {
  font-size: 20px;
  line-height: 1.3;
}

.l4d2-square__head-actions,
.l4d2-square__detail-actions,
.l4d2-square__submit-row,
.l4d2-square__card-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.l4d2-square__toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
}
.l4d2-square__section-note,
.l4d2-square__scheme-intro,
.l4d2-square__scheme-submeta {
  margin: 0;
  color: #64748b;
}

.l4d2-square__search {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  flex: 1 1 320px;
  padding: 0 14px;
  border: 1px solid #dbe2ea;
  border-radius: 14px;
  background: #f8fafc;
}

.l4d2-square__search--compact {
  flex: 0 0 auto;
  width: 100%;
  min-width: 0;
  margin-bottom: 14px;
}

.l4d2-square__search input {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  color: #0f172a;
  font: inherit;
}

.l4d2-square__author img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  background: #e2e8f0;
}

.l4d2-square__board {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 0 24px 24px;
}

.l4d2-square__section {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.05);
}

.l4d2-square__section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.l4d2-square__section-title {
  color: #0f172a;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
}

.l4d2-square__panel-list {
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.l4d2-square__card,
.l4d2-square__panel,
.l4d2-square__mode-card {
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.05);
}

.l4d2-square__card {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.l4d2-square__card-head,
.l4d2-square__author,
.l4d2-square__record-head,
.l4d2-square__detail-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.l4d2-square__author {
  justify-content: flex-start;
}

.l4d2-square__author div {
  display: grid;
  gap: 3px;
}

.l4d2-square__author strong,
.l4d2-square__record strong {
  margin: 0;
  color: #0f172a;
}

.l4d2-square__card-body .l4d2-square__subheading {
  font-size: 22px;
  line-height: 1.3;
}

.l4d2-square__author span,
.l4d2-square__record-head span {
  color: #94a3b8;
  font-size: 12px;
}

.l4d2-square__card-body {
  display: grid;
  gap: 8px;
}

.l4d2-square__chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid #dbe2ea;
  border-radius: 999px;
  background: #f8fafc;
  color: #475569;
  font-size: 12px;
}

.l4d2-square__scheme-actions .l4d2-square__chip {
  border-radius: 8px;
}

.l4d2-square__chip--warn {
  border-color: #f5d88a;
  background: #fff7db;
  color: #a16207;
}

.l4d2-square__button,
.l4d2-square__icon-button,
.l4d2-square__mode-card,
.l4d2-square__record {
  appearance: none;
  border: 1px solid #d0d7e2;
  background: #ffffff;
  color: #0f172a;
  font: inherit;
}

.l4d2-square__button,
.l4d2-square__icon-button {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.l4d2-square__icon-button {
  width: 42px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.l4d2-square__button:hover,
.l4d2-square__icon-button:hover,
.l4d2-square__mode-card:hover,
.l4d2-square__record:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.l4d2-square__button--primary {
  border-color: #111111;
  background: #111111;
  color: #ffffff;
}

.l4d2-square__button.is-liked {
  border-color: #f5d88a;
  color: #a16207;
  background: #fff7db;
}

.l4d2-square__button--danger {
  border-color: #fecdd3;
  color: #be123c;
  background: #fff1f2;
}

.l4d2-square__button--compact {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 10px;
}

.l4d2-square__button--icon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.l4d2-square__button:disabled,
.l4d2-square__button.is-disabled {
  cursor: not-allowed;
  opacity: 0.68;
  box-shadow: none;
  transform: none;
}

.l4d2-square__scheme-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid #e1e5e9;
  border-radius: 14px;
  background: #ffffff;
}

.l4d2-square__scheme-main {
  width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.l4d2-square__scheme-avatar {
  width: 48px;
  height: 48px;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f0f2f5;
  color: #6c757d;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}

.l4d2-square__scheme-meta {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.l4d2-square__scheme-title-row,
.l4d2-square__scheme-submeta,
.l4d2-square__scheme-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.l4d2-square__scheme-title-row {
  justify-content: flex-start;
}

.l4d2-square__scheme-title,
.l4d2-square__scheme-intro {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.l4d2-square__scheme-title {
  color: #0f172a;
  font-size: 15px;
  font-weight: 700;
  flex: 1 1 auto;
}

.l4d2-square__scheme-intro {
  font-size: 13px;
}

.l4d2-square__scheme-submeta {
  font-size: 12px;
}

.l4d2-square__scheme-actions {
  justify-content: flex-end;
}

.l4d2-square__detail-author-avatar {
  width: 28px;
  height: 28px;
  position: relative;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

.l4d2-square__avatar-fallback,
.l4d2-square__avatar-image {
  all: initial;
  position: absolute;
  inset: 0;
  box-sizing: border-box;
}

.l4d2-square__avatar-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: 1;
  color: inherit;
  text-transform: uppercase;
}

.l4d2-square__avatar-image {
  display: block;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.l4d2-square__detail-author-avatar .l4d2-square__avatar-fallback {
  font-size: 11px;
  font-weight: 600;
}

.l4d2-square__upload-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.88fr);
  align-items: start;
  gap: 18px;
  padding: 20px 24px 24px;
}

.l4d2-square__upload-body {
  flex: 1 1 auto;
  min-height: 0;
}

.l4d2-square__my-layout {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  gap: 16px;
  padding: 20px 24px 24px;
}

.l4d2-square__detail-layout {
  display: grid;
  gap: 18px;
  padding: 20px 24px 24px;
}

.l4d2-square__panel {
  min-height: 0;
  padding: 18px;
}

.l4d2-square__panel--records {
  display: flex;
  flex-direction: column;
}

.l4d2-square__upload-records-panel {
  min-height: 0;
  overflow: hidden;
  contain: layout paint;
}

.l4d2-square__panel--detail-info {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.l4d2-square__panel--detail-main {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.l4d2-square__panel--detail-main .l4d2-square__panel-head {
  margin-bottom: 0;
}

.l4d2-square__panel-head {
  margin-bottom: 6px;
}

.l4d2-square__panel-head p {
  margin: 6px 0 0;
  color: #64748b;
}

.l4d2-square__submit-actions,
.l4d2-square__detail-flags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.l4d2-square__detail-flags .l4d2-square__chip {
  border-radius: 8px;
}

.l4d2-square__field {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.l4d2-square__field span {
  color: #334155;
  font-size: 13px;
  font-weight: 600;
}

.l4d2-square__field input,
.l4d2-square__field textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid #dbe2ea;
  border-radius: 14px;
  outline: none;
  resize: none;
  background: #f8fafc;
  color: #0f172a;
  font: inherit;
}

.l4d2-square__field textarea {
  min-height: 96px;
}

.l4d2-square__field textarea[name="scheme_description"] {
  min-height: 72px;
}

.l4d2-square__field textarea[name="main_content"] {
  min-height: 180px;
}

.l4d2-square__submit-row {
  justify-content: space-between;
  margin-top: 18px;
}

.l4d2-square__toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid #dbe2ea;
  border-radius: 999px;
  background: #f8fafc;
  color: #334155;
  cursor: pointer;
  user-select: none;
}

.l4d2-square__toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.l4d2-square__toggle-slider {
  position: relative;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: #cbd5e1;
  transition: background 0.18s ease;
}

.l4d2-square__toggle-slider::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.18);
  transition: transform 0.18s ease;
}

.l4d2-square__toggle input:checked + .l4d2-square__toggle-slider {
  background: #111111;
}

.l4d2-square__toggle input:checked + .l4d2-square__toggle-slider::after {
  transform: translateX(18px);
}

.l4d2-square__toggle span:last-child {
  font-size: 13px;
  font-weight: 600;
}

.l4d2-square__submit-hint {
  color: #64748b;
  font-size: 13px;
}

.l4d2-square__submit-hint[data-state="error"] {
  color: #be123c;
}

.l4d2-square__record-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  display: grid;
  align-content: start;
  align-items: start;
  grid-auto-rows: max-content;
  gap: 10px;
  contain: layout paint;
}

.l4d2-square__record {
  display: grid;
  gap: 8px;
  width: 100%;
  padding: 14px;
  border-radius: 14px;
  cursor: pointer;
  text-align: left;
  contain: layout paint style;
  content-visibility: auto;
  contain-intrinsic-size: 180px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.l4d2-square__upload-records-panel .l4d2-square__record:hover {
  transform: none;
  box-shadow: none;
  border-color: #94a3b8;
  background: #f8fafc;
}

.l4d2-square__record code,
.l4d2-square__code {
  display: block;
  padding: 12px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #0f172a;
  color: #e2e8f0;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.l4d2-square__detail-section {
  display: grid;
  gap: 8px;
  padding: 0 24px;
  margin-bottom: 18px;
}

.l4d2-square__detail-section--panel {
  padding: 0;
  margin: 0;
}

.l4d2-square__detail-content {
  min-height: 72px;
  overflow: auto;
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #f8fafc;
  color: #64748b;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.l4d2-square__detail-content--description {
  max-height: 160px;
}

.l4d2-square__detail-content--detail {
  max-height: 180px;
}

.l4d2-square__detail-content--main {
  min-height: 220px;
  max-height: 360px;
}

.l4d2-square__detail-content::-webkit-scrollbar {
  width: 10px;
}

.l4d2-square__detail-content::-webkit-scrollbar-thumb {
  border: 2px solid #f8fafc;
  border-radius: 999px;
  background: #cbd5e1;
}

.l4d2-square__detail-content::-webkit-scrollbar-track {
  background: transparent;
}

.l4d2-square__detail-actions {
  padding: 0 24px 24px;
}

.l4d2-square__detail-flags {
  justify-content: flex-end;
  color: #64748b;
  font-size: 12px;
}

.l4d2-square__detail-actions--panel {
  padding: 0;
  margin-top: 4px;
}

.l4d2-square__mode-list {
  display: grid;
  gap: 12px;
  padding: 0 24px 24px;
}

.l4d2-square__mode-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: 18px;
  text-align: left;
  cursor: pointer;
}

.l4d2-square__mode-card span {
  color: #64748b;
  line-height: 1.7;
}

.l4d2-square__empty {
  min-height: 120px;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
}

.l4d2-square__empty--small {
  min-height: 84px;
}

.l4d2-square__toast {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 9995;
  min-width: 220px;
  max-width: min(420px, calc(100vw - 40px));
  padding: 14px 16px;
  border: 1px solid #dbe2ea;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.14);
  color: #0f172a;
  text-align: center;
  opacity: 0;
  transform: translate(-50%, calc(-50% + 8px));
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.l4d2-square__toast.is-visible {
  opacity: 1;
  transform: translate(-50%, -50%);
}

.l4d2-square__toast[data-state="success"] {
  border-color: #bbf7d0;
}

.l4d2-square__toast[data-state="error"] {
  border-color: #fecdd3;
}

@media (max-width: 980px) {
  .l4d2-square__upload-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .l4d2-square__entry {
    left: 12px;
    width: 68px;
    min-height: 96px;
    padding: 12px 8px;
  }

  .l4d2-square__window,
  .l4d2-square__dialog {
    width: calc(100vw - 24px);
    margin: 12px auto;
    max-height: calc(100vh - 24px);
  }

  .l4d2-square__window-head,
  .l4d2-square__dialog-head,
  .l4d2-square__toolbar,
  .l4d2-square__submit-row,
  .l4d2-square__detail-meta {
    display: grid;
  }

  .l4d2-square__toolbar {
    padding-top: 16px;
  }

  .l4d2-square__board {
    padding: 0 16px 16px;
  }

  .l4d2-square__upload-grid {
    padding: 16px;
  }

  .l4d2-square__my-layout {
    padding: 16px;
  }

  .l4d2-square__section,
  .l4d2-square__scheme-row,
  .l4d2-square__scheme-main {
    display: grid;
  }

  .l4d2-square__scheme-row {
    grid-template-columns: 1fr;
  }

  .l4d2-square__scheme-actions {
    justify-content: flex-start;
  }

  .l4d2-square__detail-flags {
    justify-content: flex-start;
  }
}