.student-layout.layout-desktop {
  display: grid;
  grid-template-columns: 272px minmax(0, 1fr);
  background: #EFEFEC;
}
.layout-desktop .desktop-sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  padding: 22px 18px 18px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 12px 0 36px rgba(0, 0, 0, 0.035);
  backdrop-filter: blur(24px);
}
.desktop-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 48px;
  padding: 4px 8px 16px;
}
.desktop-brand-copy { min-width: 0; }
.desktop-brand-title {
  font-size: 15px;
  font-weight: 750;
  letter-spacing: -0.025em;
  color: #2D2D2D;
}
.desktop-brand-caption {
  margin-top: 1px;
  font-size: 11px;
  font-weight: 600;
  color: #ADADAD;
}
.desktop-sidebar-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 4px 16px;
}
.desktop-sidebar-label {
  margin: 17px 10px 8px;
  color: #9A9A95;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}
.desktop-course-list,
.desktop-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.desktop-course-button,
.desktop-nav-button,
.desktop-theme-button,
.desktop-profile-action {
  border: 0;
  cursor: pointer;
  transition-property: background-color, color, box-shadow, transform, opacity;
  transition-duration: 150ms;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}
.desktop-course-button:focus-visible,
.desktop-nav-button:focus-visible,
.desktop-theme-button:focus-visible,
.desktop-profile-action:focus-visible,
.desktop-profile-name:focus-visible {
  outline: 2px solid rgba(45, 45, 45, 0.34);
  outline-offset: 2px;
}
.desktop-course-button,
.desktop-nav-button {
  width: 100%;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 11px;
  border-radius: 14px;
  padding: 9px 11px;
  background: transparent;
  color: #6B6B6B;
  text-align: left;
}
.desktop-course-button:hover,
.desktop-nav-button:hover { background: rgba(255, 255, 255, 0.82); color: #2D2D2D; }
.desktop-course-button:active,
.desktop-nav-button:active,
.desktop-theme-button:active,
.desktop-profile-action:active { transform: scale(0.96); }
.desktop-course-button.is-active,
.desktop-nav-button.is-active {
  background: #FFFFFF;
  color: #2D2D2D;
  box-shadow:
    0 1px 2px -1px rgba(0, 0, 0, 0.06),
    0 6px 18px rgba(0, 0, 0, 0.045);
}
.desktop-nav-icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border-radius: 10px;
  color: #A0A09B;
  transition-property: background-color, color;
  transition-duration: 150ms;
}
.desktop-nav-button.is-active .desktop-nav-icon,
.desktop-course-button.is-active .desktop-nav-icon {
  background: #2D2D2D;
  color: #FFFFFF;
}
.desktop-nav-text {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 650;
}
.desktop-sidebar-footer {
  flex: none;
  padding: 14px 4px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.055);
}
.desktop-app-version {
  margin-top: 8px;
  width: 100%;
  padding: 0;
  color: #2D2D2D;
  font-size: 10px;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
  text-align: center;
  opacity: 0.32;
}
.mobile-nav-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  margin: 0 16px;
}
.mobile-app-version {
  width: 100%;
  color: #2D2D2D;
  font-size: 9px;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-align: center;
  opacity: 0.32;
}
.desktop-theme-button {
  width: 100%;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-radius: 14px;
  padding: 8px 10px 8px 12px;
  background: rgba(255, 255, 255, 0.68);
  color: #6B6B6B;
  font-size: 12px;
  font-weight: 650;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.035);
}
.desktop-theme-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: #FFFFFF;
  color: #2D2D2D;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
}
.desktop-profile {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  min-height: 54px;
  padding: 7px 5px;
  border-radius: 16px;
}
.desktop-profile-avatar {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: #E7E7E4;
  color: #2D2D2D;
  font-size: 14px;
  font-weight: 750;
}
.desktop-profile-avatar { display: none; }
.desktop-profile-copy { min-width: 0; }
.desktop-profile-name {
  width: 100%;
  overflow: hidden;
  border: 0;
  padding: 0;
  background: transparent;
  color: #2D2D2D;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.desktop-profile-meta {
  margin-top: 2px;
  overflow: hidden;
  color: #ADADAD;
  font-size: 10px;
  font-weight: 550;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.desktop-profile-input {
  width: 100%;
  border: 0;
  border-radius: 8px;
  outline: 0;
  padding: 3px 5px;
  background: #FFFFFF;
  color: #2D2D2D;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 0 0 1px rgba(45, 45, 45, 0.14);
}
.desktop-profile-action {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: transparent;
  color: #A0A09B;
}
.desktop-profile-action:hover { background: #FFFFFF; color: #2D2D2D; }
.layout-desktop .student-workspace {
  width: 100%;
  height: 100dvh;
  padding: 24px;
}
.layout-desktop .student-viewport {
  width: min(100%, 1280px);
  height: calc(100dvh - 48px);
  margin: 0 auto;
  border-radius: 30px;
  box-shadow:
    0 2px 5px -2px rgba(0, 0, 0, 0.05),
    0 20px 55px rgba(0, 0, 0, 0.055);
}
.layout-desktop .desktop-home-header {
  display: flex;
  align-items: flex-start;
  flex: none;
  padding: 34px 34px 23px;
}
.desktop-home-eyebrow {
  color: #8B8B86;
  font-size: 14px;
  font-style: italic;
  font-weight: 500;
  line-height: 1.4;
  text-wrap: pretty;
}
.desktop-home-title {
  margin-top: 4px;
  color: #2D2D2D;
  font-size: clamp(27px, 2.2vw, 36px);
  font-weight: 760;
  letter-spacing: -0.035em;
  line-height: 1.08;
  text-wrap: balance;
}
.desktop-device-badge {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: none;
  border-radius: 15px;
  padding: 9px 13px;
  background: #FFFFFF;
  color: #6B6B6B;
  font-size: 12px;
  font-weight: 650;
  box-shadow:
    0 5px 16px rgba(0, 0, 0, 0.04);
}
.layout-desktop .student-primary-scroll {
  padding: 4px 30px 42px;
}
.desktop-home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(310px, 0.8fr);
  align-items: start;
  gap: 20px;
}
.desktop-home-grid > .home-zenclass-card,
.desktop-home-grid > .home-deadlines-card { grid-column: 1 / -1; }
.desktop-home-grid > .home-streak-card,
.desktop-home-grid > .home-schedule-card { grid-column: 1; }
.desktop-home-grid > .home-rating-card,
.desktop-home-grid > .home-tests-card { grid-column: 2; }
.desktop-home-grid > .home-zenclass-card,
.desktop-home-grid > .home-streak-card,
.desktop-home-grid > .home-rating-card,
.desktop-home-grid > .home-tests-card,
.desktop-home-grid > .home-schedule-card,
.desktop-home-grid > .home-deadlines-card {
  width: 100% !important;
  margin: 0 !important;
}
.layout-desktop .mobile-header,
.layout-desktop .mobile-nav-shell { display: none !important; }

.layout-desktop.dark .desktop-app-version,
.layout-mobile.dark .mobile-app-version {
  color: #FFFFFF;
  opacity: 0.28;
}
.layout-desktop .test-question-card { border-radius: 22px; }
.layout-desktop .test-primary-button { max-width: 520px; margin-left: auto; margin-right: auto; }
.layout-desktop .test-runner-actions { display: flex; justify-content: center; }
.layout-desktop .test-runner-actions > * { width: min(100%, 760px); }
.layout-desktop .student-detail-frame { width: min(100%, 1180px); margin: 0 auto; }
.layout-desktop .tests-page-header,
.layout-desktop .tests-page-filters,
.layout-desktop .tests-page-list {
  width: min(100%, 1080px);
  margin-left: auto;
  margin-right: auto;
}
.layout-desktop .test-runner-header,
.layout-desktop .test-runner-scroll {
  width: min(100%, 900px);
  margin-left: auto;
  margin-right: auto;
}
.layout-desktop .student-bottom-modal {
  align-items: center;
  padding: 24px;
}
.layout-desktop .student-bottom-modal > .relative {
  max-width: 520px;
  border-radius: 26px;
  padding-bottom: 28px;
}
.layout-desktop .lesson-access-handle { display: none; }
.layout-desktop .student-report-modal > div {
  width: min(900px, calc(100vw - 80px));
  max-width: none;
  height: calc(100dvh - 48px);
  margin: 24px;
  border-radius: 28px;
}

.dark.student-layout { background: #111111; color: #DEDEDE; }
.dark.student-layout.layout-desktop { background: #0B0B0B; }
.dark .desktop-sidebar {
  background: rgba(20, 20, 20, 0.86);
  box-shadow: 12px 0 36px rgba(0, 0, 0, 0.22);
}
.dark .desktop-brand-title,
.dark .desktop-profile-name,
.dark .desktop-home-title { color: #DEDEDE; }
.dark .desktop-brand-caption,
.dark .desktop-sidebar-label,
.dark .desktop-profile-meta,
.dark .desktop-home-eyebrow { color: #666666; }
.dark .desktop-course-button,
.dark .desktop-nav-button,
.dark .desktop-theme-button { color: #888888; }
.dark .desktop-course-button:hover,
.dark .desktop-nav-button:hover { background: #202020; color: #DEDEDE; }
.dark .desktop-course-button.is-active,
.dark .desktop-nav-button.is-active,
.dark .desktop-theme-button,
.dark .desktop-device-badge {
  background: #1C1C1C;
  color: #DEDEDE;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
}
.dark .desktop-nav-button.is-active .desktop-nav-icon,
.dark .desktop-course-button.is-active .desktop-nav-icon {
  background: #F0F0F0;
  color: #2D2D2D;
}
.dark .desktop-sidebar-footer { border-top-color: rgba(255, 255, 255, 0.07); }
.dark .desktop-profile-avatar { background: #292929; color: #DEDEDE; }
.dark .desktop-profile-input { background: #252525; color: #DEDEDE; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1); }
.dark .desktop-profile-action:hover { background: #252525; color: #DEDEDE; }
.dark .student-viewport { background: #111111; }
.dark .layout-desktop .student-viewport {
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

@media (max-width: 1180px) {
  .student-layout.layout-desktop { grid-template-columns: 244px minmax(0, 1fr); }
  .layout-desktop .student-workspace { padding: 18px; }
  .layout-desktop .student-viewport { height: calc(100dvh - 36px); }
  .desktop-home-grid { grid-template-columns: 1fr; }
  .desktop-home-grid > .home-zenclass-card,
  .desktop-home-grid > .home-streak-card,
  .desktop-home-grid > .home-rating-card,
  .desktop-home-grid > .home-tests-card,
  .desktop-home-grid > .home-schedule-card,
  .desktop-home-grid > .home-deadlines-card { grid-column: 1; }
}