.subcourse-grid {
  --subcourse-card-min-height: 300px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  align-items: stretch;
  gap: 16px;
}

.subcourse-card-wrap {
  position: relative;
  height: 100%;
  min-height: var(--subcourse-card-min-height);
  min-width: 0;
  transition: opacity .18s ease, transform .24s cubic-bezier(.16, 1, .3, 1);
}

.subcourse-card {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-height: var(--subcourse-card-min-height);
  padding: 19px 16px 16px;
  border-radius: 16px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--course-highlight) 42%, transparent), transparent 46%),
    var(--course-card-surface);
  border: 1px solid var(--course-card-border);
  box-shadow: var(--course-card-shadow);
  overflow: hidden;
  text-decoration: none;
  transform-origin: center;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  z-index: 0;
  color: inherit;
}

.subcourse-card:visited {
  color: inherit;
}

.subcourse-card:hover,
.subcourse-card:focus-visible {
  transform: translateY(-2px) scale(1.012);
  box-shadow: 0 16px 30px color-mix(in srgb, var(--course-ink) 11%, transparent);
  border-color: color-mix(in srgb, var(--subcourse-accent, var(--course-blue)) 28%, var(--course-card-border));
  z-index: 2;
}

.subcourse-card:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--subcourse-accent, var(--course-blue)) 26%, transparent);
  outline-offset: 2px;
}

.subcourse-grid.is-subcourse-drag-active .subcourse-card:hover {
  transform: none;
  box-shadow: var(--course-card-shadow);
  border-color: var(--course-card-border);
}

.subcourse-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--subcourse-accent, var(--course-blue));
}

.subcourse-card__icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--subcourse-accent, var(--course-blue)) 88%, var(--course-highlight) 12%),
    color-mix(in srgb, var(--subcourse-accent, var(--course-blue)) 74%, var(--course-black) 26%)
  );
  box-shadow: inset 0 1px 0 rgba(255,255,255,.25), 0 8px 20px rgba(0,0,0,.25);
  font-size: var(--font-size-500);
  font-weight: 700;
  flex: 0 0 auto;
  overflow: hidden;
}

.subcourse-card__icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.subcourse-card__icon--image {
  width: 73px;
  height: 60px;
  overflow: visible;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.subcourse-card__icon--image img {
  width: 82px;
  height: 68px;
  object-fit: contain;
}

.subcourse-card__icon i {
  font-size: var(--font-size-500);
  line-height: 1;
}

.subcourse-card__icon > span {
  line-height: 1;
  font-size: var(--font-size-100);
  font-weight: 700;
  letter-spacing: .01em;
}

.subcourse-card__icon--fallback {
  color: #fff;
}

.subcourse-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.subcourse-card__title {
  margin: 0;
  color: var(--course-card-title);
  font-family: var(--course-font-editorial);
  font-size: var(--font-size-400);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -.015em;
}

.subcourse-card__desc {
  margin: 10px 0 16px;
  color: var(--course-card-text);
  font-family: var(--course-font-sans);
  font-size: var(--font-size-300);
  line-height: 1.55;
  display: block;
  overflow: visible;
  transition: color .18s ease;
}

.subcourse-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--course-card-divider);
  color: var(--course-meta-text);
  font-size: var(--font-size-100);
  font-weight: 700;
}

.subcourse-card__meta--guest {
  align-items: flex-start;
  flex-direction: column;
  gap: 3px;
}

.subcourse-card__meta--guest span:last-child {
  color: color-mix(in srgb, var(--course-meta-text) 78%, transparent);
  font-weight: 500;
}

.subcourse-card__progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--course-card-divider);
}

.subcourse-card__progress-copy {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
  color: var(--course-meta-text);
  font-family: var(--course-font-sans);
  font-size: var(--font-size-100);
  line-height: 1.35;
}

.subcourse-card__progress-copy strong {
  color: var(--course-card-title);
  font-size: var(--font-size-200);
  font-weight: 700;
}

.subcourse-card__progress-copy > span {
  display: flex;
  flex-wrap: wrap;
  gap: 0 5px;
}

.subcourse-card__progress-separator {
  color: color-mix(in srgb, var(--subcourse-accent, var(--course-blue)) 70%, var(--course-meta-text));
}

.subcourse-card__progress-ring {
  position: relative;
  display: grid;
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(
    var(--subcourse-accent, var(--course-blue)) 0 var(--course-progress-value),
    color-mix(in srgb, var(--course-card-divider) 86%, transparent) var(--course-progress-value) 100%
  );
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--course-card-divider) 72%, transparent);
}

.subcourse-card__progress-ring::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: inherit;
  background: var(--course-card-surface);
  box-shadow: 0 1px 2px color-mix(in srgb, var(--course-ink) 8%, transparent);
}

.subcourse-card__progress-ring > span {
  position: relative;
  color: var(--course-card-title);
  font-family: var(--course-font-sans);
  font-size: var(--font-size-100);
  font-weight: 700;
  line-height: 1;
}

.subcourse-card__progress-ring small {
  font-size: var(--font-size-100);
  font-weight: 700;
}

.subcourse-card__progress-ring.is-complete {
  background: var(--subcourse-accent, var(--course-blue));
}

.subcourse-card--purple { --subcourse-accent: var(--course-accent-purple); }
.subcourse-card--green { --subcourse-accent: var(--course-accent-green); }
.subcourse-card--orange { --subcourse-accent: var(--course-accent-orange); }
.subcourse-card--blue { --subcourse-accent: var(--course-accent-blue); }

.subcourse-card__tools {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(226, 232, 240, .92);
  border-radius: 13px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 10px 24px rgba(15, 23, 42, .14);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-4px);
  transition:
    opacity .16s ease,
    visibility .16s ease,
    transform .16s ease,
    border-color .16s ease,
    box-shadow .16s ease;
}

.subcourse-card-wrap--editable:hover .subcourse-card__tools,
.subcourse-card__tools:hover,
.subcourse-card__tools:focus-within {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.subcourse-card__tool {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #43536a;
  cursor: pointer;
  appearance: none;
  font: inherit;
  transition:
    color .16s ease,
    background .16s ease,
    box-shadow .16s ease,
    transform .16s ease;
}

.subcourse-card__tool i {
  font-size: var(--font-size-300);
  line-height: 1;
}

.subcourse-card__tool--drag {
  color: #6b7b91;
  cursor: grab;
}

.subcourse-card__tool--drag:active {
  cursor: grabbing;
}

.subcourse-card__tool:hover,
.subcourse-card__tool:focus-visible {
  color: var(--site-accent-hover);
  background: var(--site-accent-soft);
  box-shadow: inset 0 0 0 1px var(--site-accent-border);
  outline: 0;
  transform: translateY(-1px);
}

.subcourse-card__tool--danger {
  color: #8a4650;
}

.subcourse-card__tool--danger:hover,
.subcourse-card__tool--danger:focus-visible {
  color: #b4232f;
  background: rgba(220, 38, 38, .08);
  box-shadow: inset 0 0 0 1px rgba(220, 38, 38, .13);
}

:root[data-theme="dark"] .subcourse-card__tools {
  border-color: rgba(148, 163, 184, .24);
  background: rgba(15, 23, 42, .78);
  box-shadow: 0 14px 28px rgba(0, 0, 0, .24);
}

:root[data-theme="dark"] .subcourse-card__tool {
  color: rgba(226, 232, 240, .82);
}

:root[data-theme="dark"] .subcourse-card__tool:hover,
:root[data-theme="dark"] .subcourse-card__tool:focus-visible {
  color: var(--site-accent-hover);
  background: var(--site-accent-soft);
  box-shadow: inset 0 0 0 1px var(--site-accent-border);
}

:root[data-theme="dark"] .subcourse-card__tool--danger {
  color: #fca5a5;
}

:root[data-theme="dark"] .subcourse-card__tool--danger:hover,
:root[data-theme="dark"] .subcourse-card__tool--danger:focus-visible {
  color: #fecaca;
  background: rgba(248, 113, 113, .14);
  box-shadow: inset 0 0 0 1px rgba(252, 165, 165, .2);
}

:root[data-theme="dark"] .course-detail-page .subcourse-card__tools {
  border-color: color-mix(in srgb, var(--course-muted) 34%, transparent);
  background: color-mix(in srgb, var(--course-highlight) 92%, transparent);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--course-ink) 14%, transparent);
}

:root[data-theme="dark"] .course-detail-page .subcourse-card__tool {
  color: var(--course-tool);
}

:root[data-theme="dark"] .course-detail-page .subcourse-card__tool:hover,
:root[data-theme="dark"] .course-detail-page .subcourse-card__tool:focus-visible {
  color: var(--course-action-text);
  background: color-mix(in srgb, var(--course-blue) 9%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--course-blue) 12%, transparent);
}

:root[data-theme="dark"] .course-detail-page .subcourse-card__tool--danger {
  color: var(--course-tool-danger);
}

:root[data-theme="dark"] .course-detail-page .subcourse-card__tool--danger:hover,
:root[data-theme="dark"] .course-detail-page .subcourse-card__tool--danger:focus-visible {
  color: var(--course-tool-danger-hover);
  background: color-mix(in srgb, var(--course-tool-danger-hover) 8%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--course-tool-danger-hover) 13%, transparent);
}

.subcourse-profile-modal__panel {
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: min(1080px, calc(100vw - 32px));
}

.subcourse-profile-modal .admin-editor-modal__body {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 380px);
  gap: 24px;
  padding: 22px 32px 24px;
}

.subcourse-profile-modal .admin-editor-modal__main {
  gap: 14px;
}

.subcourse-profile-modal .admin-editor-modal__field input {
  min-height: 46px;
}

.subcourse-profile-modal__description {
  grid-column: 1 / -1;
}

.subcourse-profile-modal__description textarea {
  min-height: 220px;
  max-height: min(42vh, 380px);
}

.subcourse-profile-modal .admin-editor-modal__asset {
  gap: 14px;
  padding: 16px;
}

.subcourse-profile-modal .admin-editor-modal__asset-head strong {
  font-size: var(--font-size-300);
}

.subcourse-profile-modal .admin-editor-modal__preview {
  min-height: 180px;
}

.subcourse-profile-modal .admin-editor-modal__preview img {
  max-height: 152px;
}

.subcourse-profile-modal .admin-editor-modal__source-tabs {
  margin-top: 2px;
}

.subcourse-profile-modal .admin-editor-modal__inline-field {
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.subcourse-profile-modal .admin-editor-modal__body {
  transition: opacity .16s ease;
}

.subcourse-profile-modal.is-loading .admin-editor-modal__body {
  opacity: .68;
}

.subcourse-grid.is-subcourse-drag-active,
.subcourse-grid.is-subcourse-drag-active .subcourse-card-wrap[data-subcourse-draggable] .subcourse-card {
  cursor: grabbing;
}

.subcourse-card-wrap[data-subcourse-draggable] .subcourse-card {
  cursor: grab;
}

.subcourse-card-wrap[data-subcourse-draggable]:active .subcourse-card {
  cursor: grabbing;
}

.subcourse-card-wrap.is-subcourse-dragging {
  z-index: 12;
  opacity: .94;
  transform: translateY(-10px) rotate(-.7deg) scale(1.025);
}

.subcourse-card-wrap.is-subcourse-dragging .subcourse-card {
  border-color: color-mix(in srgb, var(--site-accent) 34%, transparent);
  box-shadow:
    0 24px 52px rgba(15, 23, 42, .25),
    0 0 0 4px color-mix(in srgb, var(--site-accent) 12%, transparent);
}

.subcourse-card-wrap.is-subcourse-drop-before::before,
.subcourse-card-wrap.is-subcourse-drop-after::after {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--site-accent) 0%, var(--site-accent-hover) 100%);
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--site-accent) 14%, transparent),
    0 8px 18px color-mix(in srgb, var(--site-accent) 24%, transparent);
  pointer-events: none;
  z-index: 11;
}

.subcourse-card-wrap.is-subcourse-drop-before::before {
  left: -10px;
}

.subcourse-card-wrap.is-subcourse-drop-after::after {
  right: -10px;
}

.subcourse-card--drag-image {
  border-color: color-mix(in srgb, var(--site-accent) 34%, transparent) !important;
  box-shadow:
    0 24px 52px rgba(15, 23, 42, .26),
    0 0 0 4px color-mix(in srgb, var(--site-accent) 14%, transparent) !important;
  transform: rotate(-1deg) scale(1.02);
}

@media (max-width: 1100px) {
  .subcourse-profile-modal .admin-editor-modal__body {
    grid-template-columns: 1fr;
    padding: 20px 22px 22px;
  }

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

  .subcourse-grid {
    gap: 18px;
  }
}

@media (max-width: 768px) {
  .subcourse-grid {
    --subcourse-card-min-height: 0px;
    grid-template-columns: 1fr;
  }

  .subcourse-card:hover,
  .subcourse-card:focus-visible {
    transform: translateY(-2px) scale(1.006);
  }
}

@media (max-width: 640px) {
  .subcourse-profile-modal .admin-editor-modal__body {
    padding: 18px 16px;
  }

  .subcourse-profile-modal .admin-editor-modal__inline-field {
    grid-template-columns: 1fr;
  }
}