/* Sonare teacher shell: unified navigation and contextual student sidebar. */

:root {
  --sonare-header-bg: rgba(255, 253, 248, 0.96);
  --sonare-sidebar-width: 224px;
}

.topbar {
  min-height: 72px;
  padding: 0.65rem clamp(1rem, 4vw, 3.5rem);
  align-items: center;
  background: var(--sonare-header-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}

.sonare-brand {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0.35rem 0.45rem 0.35rem 0.25rem;
  border: 0;
  border-radius: 11px;
  background: transparent;
  color: var(--text);
  font-size: 1.22rem;
  font-weight: 750;
  letter-spacing: -0.035em;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.sonare-brand:hover {
  background: var(--surface-soft);
  color: var(--accent-dark);
}

.sonare-brand:focus-visible {
  outline: 3px solid rgba(95, 143, 122, 0.22);
  outline-offset: 2px;
}

.sonare-brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, #6e9f89, #4e7866);
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(70, 111, 94, 0.2);
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  min-width: 0;
  margin-left: auto;
}

.topbar .tabs {
  display: flex;
  align-items: center;
  gap: 0.18rem;
  min-width: 0;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  background: transparent;
  border: 0;
}

.topbar .tab {
  min-height: 40px;
  padding: 0.6rem 0.72rem;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
}

.topbar .tab:hover {
  background: var(--surface-soft);
  color: var(--text);
}

.topbar .tab.active {
  background: var(--accent-soft);
  border-color: rgba(95, 143, 122, 0.2);
  color: var(--accent-dark);
  box-shadow: none;
}

.topbar .login-menu {
  flex: 0 0 auto;
  margin-left: 0.2rem;
  padding-left: 0.7rem;
  border-left: 1px solid var(--border);
}

.topbar .login-menu > .button {
  max-width: 190px;
  min-height: 40px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar .user-menu-button {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-strong);
}

.topbar .user-menu-button::after {
  content: "⌄";
  flex: 0 0 auto;
  margin-left: 0.5rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.topbar .login-dropdown {
  top: calc(100% + 0.75rem);
}

/* The student form remains the same form; only its navigation is repositioned. */
.student-workspace .student-modal-card {
  display: grid;
  grid-template-columns: var(--sonare-sidebar-width) minmax(0, 1fr);
  align-items: start;
  overflow: clip !important;
}

.student-workspace .student-modal-card > .card-heading.student-editor-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  min-height: 88px;
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, #edf6f1, #fff8ed) !important;
}

.student-workspace .student-modal-card > .card-heading.student-editor-header::before {
  background: linear-gradient(135deg, #edf6f1, #fff8ed);
}

.student-workspace .student-workspace-heading {
  width: 100%;
}

.student-workspace .student-workspace-back {
  order: 2;
  margin-left: auto;
}

.student-context-sidebar {
  grid-column: 1;
  grid-row: 2 / span 12;
  align-self: stretch;
  min-width: 0;
  min-height: 530px;
  padding: 1rem 0.8rem 1.35rem;
  background: #f7faf8;
  border-right: 1px solid var(--border);
}

.student-context-label {
  display: block;
  padding: 0.2rem 0.65rem 0.4rem;
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.student-context-name {
  display: block;
  margin: 0 0.35rem 0.85rem;
  padding: 0 0.3rem 0.8rem;
  overflow: hidden;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.student-context-sidebar .student-edit-tabs {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.28rem;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: visible;
  background: transparent;
  border: 0;
}

.student-context-sidebar .student-edit-tab {
  appearance: none;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  min-height: 43px;
  padding: 0.65rem 0.7rem;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
  text-align: left;
  cursor: pointer;
}

.student-context-sidebar .student-edit-tab:hover {
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
}

.student-context-sidebar .student-edit-tab.active {
  background: var(--surface);
  border-color: var(--border);
  color: var(--accent-dark);
  box-shadow: var(--shadow-sm);
}

.student-menu-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: rgba(95, 143, 122, 0.1);
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 750;
}

.student-context-sidebar .student-edit-tab.active .student-menu-icon {
  background: var(--accent-soft);
}

.student-workspace .student-edit-panel {
  grid-column: 2;
  width: 100%;
  max-width: none !important;
  padding: 1.35rem 1.5rem 2rem;
}

.student-workspace > .student-modal-card > .form-actions {
  grid-column: 2;
  width: 100%;
  margin-top: 0;
  padding: 1rem 1.5rem 1.45rem;
}

.student-workspace .student-workspace-overview {
  padding-bottom: 2rem !important;
}

@media (max-width: 980px) {
  .topbar {
    flex-wrap: wrap;
  }

  .topbar-actions {
    flex: 1 1 auto;
  }

  .topbar .tabs {
    justify-content: flex-end;
  }

  .student-workspace .student-modal-card {
    grid-template-columns: 196px minmax(0, 1fr);
  }
}

@media (max-width: 780px) {
  .topbar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 0.55rem 0.75rem;
  }

  .topbar-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    width: 100%;
    margin: 0;
  }

  .topbar .tabs {
    justify-content: flex-start;
  }

  .topbar .login-menu {
    margin-left: 0;
    padding-left: 0.55rem;
  }

  .topbar .tab {
    min-height: 38px;
    padding: 0.55rem 0.62rem;
  }

  .student-workspace .student-modal-card {
    display: block;
  }

  .student-workspace .student-modal-card > .card-heading.student-editor-header {
    min-height: 0;
    padding: 1rem;
  }

  .student-context-sidebar {
    position: static;
    min-height: 0;
    padding: 0.75rem 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .student-context-label,
  .student-context-name {
    display: none;
  }

  .student-context-sidebar .student-edit-tabs {
    flex-direction: row;
    gap: 0.25rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .student-context-sidebar .student-edit-tabs::-webkit-scrollbar {
    display: none;
  }

  .student-context-sidebar .student-edit-tab {
    flex: 0 0 auto;
    width: auto;
    min-height: 40px;
    padding: 0.55rem 0.65rem;
    white-space: nowrap;
  }

  .student-workspace .student-edit-panel,
  .student-workspace > .student-modal-card > .form-actions {
    width: 100%;
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

@media (max-width: 520px) {
  .sonare-brand {
    min-height: 38px;
  }

  .sonare-brand-mark {
    width: 31px;
    height: 31px;
  }

  .topbar .login-menu > .button {
    max-width: 120px;
    padding-left: 0.65rem;
    padding-right: 0.65rem;
  }

  .student-workspace .student-workspace-heading {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .student-workspace .student-workspace-back {
    order: 0;
    width: 100%;
    margin: 0 0 0.3rem;
  }

  .student-menu-icon {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sonare-brand,
  .topbar .tab,
  .student-context-sidebar .student-edit-tab {
    transition: none;
  }
}