/* =============================================================================
   TLEF Starter — app shell styles.

   RE-SKIN HERE: the token block below is the single source of visual identity.
   Change these custom properties (and APP in client/src/config.ts) to rebrand
   the whole app. Light is the default theme; [data-theme="dark"] overrides the
   same tokens. The deep-navy sidebar is the one brand signature and reads in
   both themes.
   ========================================================================== */

:root {
  /* Brand + interactive */
  --sidebar-bg: #002145; /* UBC navy — the persistent brand rail */
  --sidebar-text: #b7c6dc;
  --sidebar-text-strong: #ffffff;
  --sidebar-active: rgba(255, 255, 255, 0.1);
  --accent: #0055b7; /* UBC secondary blue */
  --accent-strong: #003a8c;
  --accent-contrast: #ffffff;

  /* Surfaces + text (light) */
  --bg: #f3f5f9;
  --surface: #ffffff;
  --surface-2: #f2f5fa;
  --border: #e2e7f0;
  --border-strong: #cfd7e5;
  --text: #131b2b;
  --muted: #5a6678;

  /* Status */
  --up: #1f9d57;
  --down: #d1495b;
  --warn: #cc8800;

  /* Badge fills — solid so text meets AA contrast on any surface. */
  --demo-bg: #f6e4bf;
  --demo-fg: #6f4500;
  --ok-bg: #cdeeda;
  --ok-fg: #0f6b39;
  --err-bg: #f7d7dc;
  --err-fg: #a01f30;

  /* Type */
  --ui: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Shape + depth */
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(18, 27, 43, 0.05), 0 10px 28px -16px rgba(18, 27, 43, 0.28);
  --sidebar-w: 250px;
  --topbar-h: 60px;
  --content-max: 860px;

  /* Instructor shell + primitives (Task 15) — approximated from the Figma
     "Wireframe v0.2" screenshots, not exact design tokens (see
     docs/superpowers/plans/phase-1/Saurav/task-15-wireframe-reference.md). */
  --instr-sidebar-bg: #2f7d46;
  --instr-sidebar-text: #cfe6d7;
  --instr-dark: #1a1f1a;
  --instr-dark-hover: #2c332c;
  --instr-green-bg: #e3f2e8;
  --instr-green-fg: #1f5c34;
  --instr-amber-bg: #faf1de;
  --instr-amber-fg: #8a5c14;
  --instr-red-bg: #fbe4e1;
  --instr-red-fg: #8f2a1f;
  --instr-blue-bg: #e2ecf7;
  --instr-blue-fg: #2c5182;
  --instr-gray-bg: #eceeec;
  --instr-gray-fg: #5b625b;

  /* Student shell + primitives (Task 1) — same "approximate, not exact"
     treatment as the instructor tokens above, blue per the student wireframe
     screens instead of green. */
  --student-sidebar-bg: #3b5fd6;
  --student-sidebar-text: #d6e0fb;
}

:root[data-theme="dark"] {
  --sidebar-bg: #050c17;
  --sidebar-text: #93a4bd;
  --sidebar-text-strong: #eef3fb;
  --sidebar-active: rgba(120, 170, 255, 0.14);
  --accent: #4d9fff;
  --accent-strong: #7db6ff;
  --accent-contrast: #04121f;

  --bg: #0a0f1a;
  --surface: #111a2a;
  --surface-2: #0c1524;
  --border: #21304a;
  --border-strong: #2c3e5c;
  --text: #e7edf7;
  --muted: #93a3ba;

  --up: #3fca80;
  --down: #ff6b81;
  --warn: #eab04a;

  --demo-bg: #3a2f16;
  --demo-fg: #f0c368;
  --ok-bg: #123522;
  --ok-fg: #6fe0a0;
  --err-bg: #3a1820;
  --err-fg: #ff9aa8;

  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 30px -18px rgba(0, 0, 0, 0.7);

  --instr-sidebar-bg: #1e5c33;
  --instr-sidebar-text: #a9d1b6;
  --instr-dark: #05070a;
  --instr-dark-hover: #14181f;
  --instr-green-bg: #123522;
  --instr-green-fg: #6fe0a0;
  --instr-amber-bg: #3a2f16;
  --instr-amber-fg: #f0c368;
  --instr-red-bg: #3a1820;
  --instr-red-fg: #ff9aa8;
  --instr-blue-bg: #16283f;
  --instr-blue-fg: #8bb6ec;
  --instr-gray-bg: #202722;
  --instr-gray-fg: #9fada2;

  --student-sidebar-bg: #24398f;
  --student-sidebar-text: #b9c8f5;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--ui);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.011em;
}

a {
  color: inherit;
}

/* ---- Utilities ----------------------------------------------------------- */

.mono {
  font-family: var(--mono);
  font-size: 0.86em;
  letter-spacing: -0.01em;
}

.eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--accent);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 1rem 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.badge--demo {
  background: var(--demo-bg);
  color: var(--demo-fg);
}

.badge--muted {
  background: var(--surface-2);
  color: var(--muted);
}

.badge--up {
  background: var(--ok-bg);
  color: var(--ok-fg);
}

.badge--down {
  background: var(--err-bg);
  color: var(--err-fg);
}

/* ---- Buttons + inputs ---------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font: inherit;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

.btn:hover {
  border-color: var(--accent);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}

.btn--primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn--ghost {
  background: transparent;
}

.btn--sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

.btn:disabled {
  opacity: 0.55;
  cursor: progress;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.icon-btn:hover {
  background: var(--surface-2);
  border-color: var(--border);
}

.input {
  width: 100%;
  font: inherit;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input::placeholder {
  color: var(--muted);
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.input--area {
  resize: vertical;
  min-height: 5.5rem;
}

.input--file {
  padding: 0.4rem 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.row {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.row .input {
  flex: 1;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- States -------------------------------------------------------------- */

.state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  padding: 1.75rem 1rem;
  text-align: center;
}

.state__text {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.state--error .state__text {
  color: var(--down);
}

.spinner {
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---- Cards --------------------------------------------------------------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card + .card {
  margin-top: 1.25rem;
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.card__title {
  font-size: 1.05rem;
  font-weight: 650;
}

.card__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* ---- Landing (pre-login) ------------------------------------------------- */

.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.landing__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1rem, 5vw, 3rem);
}

.landing__main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
  padding: clamp(1.5rem, 5vw, 3rem);
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
}

.landing__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.landing__title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 680;
  letter-spacing: -0.025em;
  margin: 0 0 0.9rem;
}

.landing__intro {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 34ch;
  margin: 0 0 1.6rem;
}

.landing__actions {
  display: flex;
  gap: 0.75rem;
}

.landing__actions .btn {
  padding: 0.7rem 1.4rem;
}

.landing__hint {
  margin: 1.4rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.landing__hint code {
  color: var(--text);
}

.banner {
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.banner--error {
  background: color-mix(in srgb, var(--down) 12%, transparent);
  border-color: color-mix(in srgb, var(--down) 40%, transparent);
  color: var(--text);
}

/* ---- Brand --------------------------------------------------------------- */

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.5rem;
  border-radius: 7px;
  background: var(--accent);
  color: var(--accent-contrast);
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.brand__name {
  font-weight: 650;
  letter-spacing: -0.01em;
}

/* ---- App shell ----------------------------------------------------------- */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.1rem 0.85rem;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  overflow-y: auto;
}

.sidebar .brand {
  padding: 0.35rem 0.5rem 1rem;
}

.sidebar .brand__name {
  color: var(--sidebar-text-strong);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
}

/* An author `display` rule normally wins over the UA `[hidden]` stylesheet
 * rule regardless of selector specificity (cascade origin, not specificity,
 * decides that tie) — so `.nav[hidden]` must be spelled out explicitly to
 * actually hide the static nav while a practice-context panel replaces it
 * (main.ts's `nav.hidden = practiceMode`). */
.nav[hidden] {
  display: none;
}

.nav__group {
  margin: 1.1rem 0.65rem 0.35rem;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--sidebar-text) 75%, transparent);
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--sidebar-text);
  font-weight: 550;
  transition: background 0.15s, color 0.15s;
}

.nav__link:hover {
  background: var(--sidebar-active);
  color: var(--sidebar-text-strong);
}

.nav__link--active {
  background: var(--sidebar-active);
  color: var(--sidebar-text-strong);
  box-shadow: inset 2px 0 0 var(--accent);
}

.nav__glyph {
  width: 1.1rem;
  text-align: center;
  opacity: 0.85;
}

.nav__text {
  flex: 1;
}

/* The sidebar is navy in both themes, so pin the DEMO badge to a fixed,
   AA-contrast treatment regardless of the active theme. */
.nav__link .badge--demo {
  background: #3a2f16;
  color: #f0c368;
}

.sidebar__foot {
  padding: 0.75rem 0.65rem 0.25rem;
  font-size: 0.72rem;
  color: color-mix(in srgb, var(--sidebar-text) 70%, transparent);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 0.5rem;
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  height: var(--topbar-h);
  padding: 0 clamp(1rem, 3vw, 1.75rem);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(6px);
}

.topbar__title {
  font-size: 1.15rem;
  font-weight: 650;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.topbar__menu {
  display: none;
}

.user {
  color: var(--muted);
  font-size: 0.82rem;
  max-width: 16ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.outlet {
  flex: 1;
  overflow-y: auto;
  padding: clamp(1.25rem, 3vw, 2.25rem);
}

.backdrop {
  display: none;
}

/* ---- Views --------------------------------------------------------------- */

.view {
  max-width: var(--content-max);
  margin: 0 auto;
  animation: rise 0.22s ease both;
}

/* Structure needs room for its editor and AI review workspace. Other views
   retain the narrower reading width controlled by --content-max. */
.view--structure {
  max-width: none;
}

.view--question-detail {
  max-width: 1180px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

.view__intro {
  margin-bottom: 1.5rem;
}

.view__eyebrow-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.35rem;
}

.view__eyebrow-row .eyebrow {
  margin: 0;
}

.view__title {
  font-size: 1.7rem;
  font-weight: 680;
  letter-spacing: -0.02em;
}

.view__lead {
  margin: 0.5rem 0 0;
  color: var(--muted);
  max-width: 60ch;
}

/* ---- Health card --------------------------------------------------------- */

.status-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.status__dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--muted) 22%, transparent);
}

.status--up .status__dot {
  background: var(--up);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--up) 22%, transparent);
}

.status--down .status__dot {
  background: var(--down);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--down) 22%, transparent);
}

.status__label {
  color: var(--text);
}

.kv-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.kv {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.kv__key {
  color: var(--muted);
  font-size: 0.85rem;
}

.raw {
  margin-top: 0.4rem;
}

.raw summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.82rem;
}

.raw__pre {
  margin: 0.6rem 0 0;
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  overflow-x: auto;
}

/* ---- Component tiles (overview) ----------------------------------------- */

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
}

.tile {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.tile__glyph {
  font-size: 1.2rem;
  color: var(--accent);
}

.tile__name {
  margin: 0.5rem 0 0.15rem;
  font-size: 1rem;
  font-weight: 650;
}

.tile__desc {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.tile__path {
  color: var(--muted);
  font-size: 0.78rem;
}

/* ---- Notes demo ---------------------------------------------------------- */

.note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.note {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.note__text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.note__time {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.75rem;
}

/* ---- RAG demo ------------------------------------------------------------ */

.or {
  position: relative;
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.or::before,
.or::after {
  content: "";
  position: absolute;
  top: 50%;
  width: calc(50% - 1.5rem);
  height: 1px;
  background: var(--border);
}

.or::before {
  left: 0;
}

.or::after {
  right: 0;
}

.row-status {
  min-height: 1.2rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.answer:not(:empty) {
  margin-top: 0.5rem;
}

.answer__text {
  margin: 0;
  white-space: pre-wrap;
}

.answer__label {
  margin: 1rem 0 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.sources {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: source;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.source {
  padding: 0.7rem 0.85rem 0.7rem 2rem;
  position: relative;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.source::before {
  counter-increment: source;
  content: "[" counter(source) "]";
  position: absolute;
  left: 0.65rem;
  top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
}

.source__meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.3rem;
}

.source__id {
  color: var(--text);
}

.source__score {
  color: var(--muted);
  flex-shrink: 0;
}

.source__text {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---- Members area -------------------------------------------------------- */

.members__welcome {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.members__attrs-label {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.attrs {
  display: grid;
  grid-template-columns: minmax(10rem, auto) 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}

.attrs__key {
  color: var(--muted);
  font-size: 0.82rem;
}

.attrs__val {
  margin: 0;
  overflow-wrap: anywhere;
}

/* ---- Role area ----------------------------------------------------------- */

.role__blurb {
  margin: 0 0 1rem;
  font-size: 1.02rem;
}

.caps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.caps__item {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.caps__mark {
  color: var(--up);
  font-weight: 700;
}

.role__foot {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---- Responsive ---------------------------------------------------------- */

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(80vw, var(--sidebar-w));
    z-index: 30;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .app-shell.is-open .sidebar {
    transform: translateX(0);
  }

  .topbar__menu {
    display: inline-flex;
  }

  .backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 20;
    background: rgba(4, 10, 20, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  .app-shell.is-open .backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .landing__grid {
    grid-template-columns: 1fr;
  }

  .user {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}
/* =============================================================================
   EXAMPLE: classes (Academic API demo). Safe to delete with the classes view.
   ========================================================================== */

.classes__heading {
  margin: 1.25rem 0 0.25rem;
  font-size: 1rem;
}

.classes__note {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.class-period__name {
  margin: 0.85rem 0 0.15rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.class-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: baseline;
  justify-content: space-between;
  width: 100%;
  padding: 0.55rem 0.25rem;
  border-bottom: 1px solid var(--border);
}

button.class-row--link {
  background: none;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  cursor: pointer;
  font: inherit;
  color: inherit;
  text-align: left;
}

button.class-row--link:hover .class-row__title,
button.class-row--link:focus-visible .class-row__title {
  color: var(--accent);
  text-decoration: underline;
}

.class-row__main {
  display: inline-flex;
  gap: 0.75rem;
  align-items: baseline;
}

.class-row__meta {
  display: inline-flex;
  gap: 0.5rem;
  align-items: baseline;
}

.class-row__schedule {
  font-size: 0.78rem;
  color: var(--muted);
}

.roster {
  margin-top: 0.5rem;
}

.roster__meta {
  margin: 0.25rem 0 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.roster__row {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr 1fr;
  gap: 0.25rem 1rem;
  align-items: baseline;
  padding: 0.45rem 0.25rem;
}

.roster__row--head {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border-bottom: 1px solid var(--border-strong);
}

.roster__student {
  border-bottom: 1px solid var(--border);
}

.roster__student > summary {
  cursor: pointer;
  list-style: none;
}

.roster__student > summary::-webkit-details-marker {
  display: none;
}

.roster__student > summary:hover,
.roster__student[open] > summary {
  background: var(--surface-2);
}

.roster__raw {
  margin: 0 0 0.5rem;
  padding: 0.6rem;
  overflow-x: auto;
  font-size: 0.72rem;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
}


/* ---- Student practice (Task 14: course home, LO list, practice, review book, summary) --- */

.banner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.1rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
}

.banner--welcome {
  border-color: var(--accent);
}

.banner__text {
  margin: 0;
  font-size: 0.9rem;
}

.banner__link {
  display: inline-block;
  margin-top: 0.3rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.banner__dismiss {
  flex-shrink: 0;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.theme-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.theme-card__title {
  font-size: 1.05rem;
  font-weight: 650;
  text-decoration: none;
}

.theme-card__title:hover {
  color: var(--accent);
}

.theme-card__coverage {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.coverage-bar {
  height: 0.4rem;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}

.coverage-bar__fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
}

.theme-card__coverage-label {
  color: var(--muted);
  font-size: 0.75rem;
}

.lo-list {
  display: flex;
  flex-direction: column;
}

.lo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.1rem;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--border);
}

.lo-row:last-child {
  border-bottom: none;
}

.lo-row:hover {
  background: var(--surface-2);
}

.lo-row__name {
  font-weight: 600;
}

.lo-row__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.lo-row__count {
  color: var(--muted);
  font-size: 0.78rem;
}

/* ---- Practice header (breadcrumb + Session Summary link) -------------- */

.practice-header__row {
  justify-content: space-between;
  align-items: center;
}

/* ---- Practice card --------------------------------------------------- */

.practice-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.watermark {
  position: absolute;
  top: 0.6rem;
  right: 0.85rem;
  font-size: 0.72rem;
  color: var(--muted);
  opacity: 0.35;
  pointer-events: none;
  user-select: none;
}

.practice-card__qlabel {
  margin: 0;
}

.practice-card__stem {
  font-size: 1rem;
  line-height: 1.55;
}

.practice-card__options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-btn {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  width: 100%;
  padding: 0.7rem 0.9rem;
  text-align: left;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.option-btn:hover:not(:disabled) {
  border-color: var(--accent);
}

.option-btn__key {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-weight: 700;
  color: var(--muted);
}

.option-btn__suffix {
  flex-shrink: 0;
  margin-left: auto;
  padding-left: 0.6rem;
  font-size: 0.78rem;
  font-style: italic;
  color: var(--accent);
}

.option-btn--selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}

.option-btn--correct {
  border-color: var(--up);
  background: var(--ok-bg);
  color: var(--ok-fg);
}

.option-btn--correct .option-btn__key {
  color: var(--ok-fg);
}

.option-btn--incorrect {
  border-color: var(--down);
  background: var(--err-bg);
  color: var(--err-fg);
}

.option-btn--incorrect .option-btn__key {
  color: var(--err-fg);
}

.option-btn--hidden-choice {
  opacity: 0.55;
}

.option-btn:disabled {
  cursor: default;
}

.practice-card__result {
  margin: 0;
  font-weight: 650;
}

.practice-card__result--correct {
  color: var(--up);
}

.practice-card__result--incorrect {
  color: var(--down);
}

.practice-card__explanations {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.practice-card__explanation {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.practice-card__retry {
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border-strong);
}

.practice-card__footer {
  justify-content: space-between;
}

.transcript {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 9rem;
  overflow-y: auto;
  margin-bottom: 1rem;
  padding: 0.5rem 0.25rem;
}

.transcript:empty {
  display: none;
}

.transcript__entry {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  background: var(--surface-2);
}

.transcript__entry--correct {
  border-left: 3px solid var(--up);
}

.transcript__entry--incorrect {
  border-left: 3px solid var(--down);
}

.transcript__head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
}

.transcript__qlabel {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--muted);
}

.transcript__stem {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
}

.transcript__result {
  margin: 0;
  font-weight: 600;
}

/* ---- Review Book (Figma wireframe screen 11) ----------------------------- */

.review-book__sort {
  width: auto;
  flex-shrink: 0;
}

.review-groups {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.review-topic__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  margin-bottom: 0.5rem;
}

.review-topic__name {
  margin: 0;
  font-weight: 680;
}

.review-topic__count {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.review-topic__los {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.review-lo {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
}

.review-lo__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.1rem;
}

.review-lo__actions {
  flex-shrink: 0;
  margin-left: auto;
}

.review-lo__caret,
.summary-topic__caret {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  background: none;
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
}

.review-lo__entries {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}

.review-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid var(--border);
}

.review-entry:last-child {
  border-bottom: none;
}

.review-entry__stem {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
}

.review-entry__badges {
  display: flex;
  gap: 0.4rem;
}

.review-entry__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.review-entry__heart {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--muted);
  padding: 0.1rem 0.2rem;
}

.review-entry__heart--active {
  color: var(--err-fg);
}

/* ---- Session Summary (Figma wireframe screen 7) -------------------------- */

.summary-section {
  margin-top: 1.5rem;
}

.summary-topics {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.summary-topic {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
}

.summary-topic__header {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.85rem 1.1rem;
}

.summary-topic__text {
  flex: 1;
  min-width: 0;
}

.summary-topic__name {
  margin: 0;
  font-weight: 650;
}

.summary-topic__meta {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.summary-topic__los {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}

.summary-lo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 1.1rem 0.6rem 2.85rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.summary-lo-row:last-child {
  border-bottom: none;
}

.summary-lo-row__accuracy {
  flex-shrink: 0;
  color: var(--ok-fg);
  font-weight: 650;
}

.summary-missed {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.summary-missed__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.summary-missed__stem {
  margin: 0;
  font-size: 0.9rem;
}

.summary-missed__link {
  flex-shrink: 0;
  font-weight: 650;
  color: var(--accent);
}

.summary-actions {
  margin-top: 1.5rem;
}

.summary-defer {
  margin-top: 0.75rem;
}

.summary-defer__link {
  border: none;
  background: none;
  padding: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
}

/* =============================================================================
   Instructor shell + design-system primitives (Task 15, Task A). Follows the
   wireframe *roughly* — green/white language, not exact tokens. See
   docs/superpowers/plans/phase-1/Saurav/task-15-wireframe-reference.md.
   ========================================================================== */

/* ---- Instructor shell ----------------------------------------------------- */

/* Re-colors the shared .sidebar/.nav__* rules (see "App shell" above) by
   overriding the tokens they already read from, rather than duplicating the
   nav layout rules for a second sidebar variant. */
.sidebar--instructor {
  --sidebar-bg: var(--instr-sidebar-bg);
  --sidebar-text: var(--instr-sidebar-text);
  --sidebar-text-strong: #ffffff;
  --sidebar-active: rgba(255, 255, 255, 0.16);
}

.sidebar--instructor .brand {
  padding: 0.35rem 0.5rem 0.5rem;
}

.sidebar--instructor .brand__name {
  color: #ffffff;
  font-size: 1.15rem;
}

.instructor-pill {
  align-self: flex-start;
  margin: 0 0.5rem 1rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav__link--disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.nav__link--disabled:hover {
  background: none;
  color: var(--sidebar-text);
}

/* ---- Page header (per-view, not the shell topbar) ------------------------- */

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.page-header__title {
  font-size: 1.7rem;
  font-weight: 680;
  letter-spacing: -0.02em;
}

.page-header__subtitle {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.btn--instr-primary {
  flex-shrink: 0;
  background: var(--instr-dark);
  border-color: var(--instr-dark);
  color: #ffffff;
}

.btn--instr-primary:hover {
  background: var(--instr-dark-hover);
  border-color: var(--instr-dark-hover);
}

/* ---- Stat tile -------------------------------------------------------------- */

.stat-tile-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.stat-tile {
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.stat-tile__value {
  margin: 0;
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-tile__value--good {
  color: var(--instr-green-fg);
}

.stat-tile__value--warn {
  color: var(--instr-amber-fg);
}

.stat-tile__value--bad {
  color: var(--instr-red-fg);
}

.stat-tile__label {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- Status badge (question status / agent decision / coverage) ----------- */

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 650;
}

.status-badge--approved,
.status-badge--pass,
.status-badge--at-target {
  background: var(--instr-green-bg);
  color: var(--instr-green-fg);
}

.status-badge--pending,
.status-badge--flag,
.status-badge--below-target {
  background: var(--instr-amber-bg);
  color: var(--instr-amber-fg);
}

.status-badge--reject,
.status-badge--empty {
  background: var(--instr-red-bg);
  color: var(--instr-red-fg);
}

.status-badge--reviewed {
  background: var(--instr-blue-bg);
  color: var(--instr-blue-fg);
}

.status-badge--draft,
.status-badge--paused,
.status-badge--archived,
.status-badge--neutral {
  background: var(--instr-gray-bg);
  color: var(--instr-gray-fg);
}

/* ---- Checklist row ---------------------------------------------------------- */

.checklist-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.checklist-row + .checklist-row {
  margin-top: 0.5rem;
}

.checklist-row__mark {
  flex-shrink: 0;
  width: 1.1rem;
  text-align: center;
  color: var(--muted);
}

.checklist-row--ok .checklist-row__mark {
  color: var(--instr-green-fg);
}

.checklist-row__label {
  flex: 1;
}

.checklist-row__label--pending {
  font-weight: 650;
}

.checklist-row__action {
  flex-shrink: 0;
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.checklist-row__action:hover {
  text-decoration: underline;
}

/* ---- Filter tabs ------------------------------------------------------------ */

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.filter-tabs__tab {
  padding: 0.55rem 0.9rem;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
}

.filter-tabs__tab:hover {
  color: var(--text);
}

.filter-tabs__tab--active {
  color: var(--instr-green-fg);
  border-bottom-color: var(--instr-green-fg);
}

/* ---- Upload zone ------------------------------------------------------------- */

.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.25rem;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface-2);
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}

.upload-zone--over {
  border-color: var(--instr-green-fg);
  background: var(--instr-green-bg);
}

.upload-zone__hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.upload-zone__input {
  display: none;
}

/* ---- Course list / course card (My Courses, N1) ---------------------------- */

.course-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.course-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.course-card:hover {
  border-color: var(--instr-sidebar-bg);
  box-shadow: var(--shadow);
}

.course-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--text);
}

.course-card__meta {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- Form field (Create Course, N2) ----------------------------------------- */

.form {
  max-width: 32rem;
  gap: 1.1rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-field__label {
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--text);
}

/* ---- Duplicate-term callout (Create Course, N2) ----------------------------- */

.duplicate-callout {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 1rem 1.1rem;
  border: 1px solid color-mix(in srgb, var(--instr-amber-fg) 35%, transparent);
  border-radius: var(--radius-sm);
  background: var(--instr-amber-bg);
}

.duplicate-callout__title {
  margin: 0;
  font-weight: 650;
  color: var(--instr-amber-fg);
}

.duplicate-callout__body {
  margin: 0;
  color: var(--instr-amber-fg);
  font-size: 0.85rem;
  opacity: 0.85;
}

/* ---- Section title (Dashboard/Structure/Settings headings, Task C) --------- */

.section-title {
  margin: 1.75rem 0 0.85rem;
  font-size: 1.05rem;
  font-weight: 650;
}

.section-title:first-child {
  margin-top: 0;
}

/* ---- Quick actions (Course Dashboard, I1) ----------------------------------- */

.quick-action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
}

.quick-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.quick-action:hover {
  border-color: var(--instr-sidebar-bg);
  box-shadow: var(--shadow);
}

.quick-action--disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.quick-action--disabled:hover {
  border-color: var(--border);
  box-shadow: none;
}

.quick-action__title {
  margin: 0;
  font-weight: 650;
}

.quick-action__subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- Course Structure two-pane layout (I2) ---------------------------------- */

.structure-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.structure-layout--suggestion {
  grid-template-columns: minmax(0, 1fr);
}

@media (max-width: 900px) {
  .structure-layout {
    grid-template-columns: 1fr;
  }
}

.structure-tree {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 0.5rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.structure-tree__title {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 650;
}

.structure-tree__add {
  width: 100%;
  margin-bottom: 0.5rem;
}

.structure-tree__toolbar {
  margin-bottom: 0.5rem;
}

.structure-tree__toolbar .structure-tree__add {
  width: auto;
  flex: 1;
  margin-bottom: 0;
}

.tree-theme + .tree-theme {
  margin-top: 0.15rem;
}

.tree-theme__row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.tree-theme__row:hover {
  background: var(--surface-2);
}

.tree-theme__row--selected {
  background: var(--instr-green-bg);
}

.tree-theme__chevron {
  flex-shrink: 0;
  width: 1.4rem;
  height: 1.4rem;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.8rem;
}

.tree-theme__name {
  flex: 1;
  font-weight: 650;
  font-size: 0.92rem;
}

.tree-theme__count {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.tree-lo-list {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding-left: 1.9rem;
  margin-bottom: 0.35rem;
}

.tree-lo {
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  cursor: pointer;
}

.tree-lo:hover {
  background: var(--surface-2);
}

.tree-lo--selected {
  background: var(--instr-green-bg);
  font-weight: 650;
}

.tree-add-lo {
  align-self: flex-start;
  margin-top: 0.15rem;
  padding: 0.3rem 0.5rem;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.tree-add-lo:hover {
  text-decoration: underline;
}

.tree-add-form {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.5rem;
}

.duplicate-warn {
  margin: 0;
  color: var(--instr-amber-fg);
  font-size: 0.8rem;
}

.structure-detail {
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.detail-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 680;
}

.detail-subtitle {
  margin: -0.5rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.detail-section-title {
  margin: 0.5rem 0 -0.35rem;
  font-size: 0.95rem;
  font-weight: 650;
}

.materials-placeholder__text {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- Assigned Course Materials (Structure LO detail, I2 <- Task D) --------- */

.assigned-materials {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.assigned-materials__list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.assigned-materials__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.assigned-materials__add {
  align-items: center;
}

.assigned-materials__add select {
  flex: 1;
}

/* ---- Course Materials (I3) -------------------------------------------------- */

.material-url-row {
  margin-top: 0.85rem;
}

.material-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.material-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

@media (max-width: 900px) {
  .material-row {
    grid-template-columns: auto 1fr;
  }
}

.material-row__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  flex-shrink: 0;
}

.material-row__dot--ready {
  background: var(--instr-green-fg);
}

.material-row__dot--processing {
  background: var(--instr-gray-fg);
}

.material-row__dot--failed {
  background: var(--instr-red-fg);
}

.material-row__main {
  min-width: 0;
}

.material-row__name {
  margin: 0;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.material-row__meta,
.material-row__assign,
.material-row__class {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.material-row__error {
  margin: 0.2rem 0 0;
  color: var(--instr-red-fg);
  font-size: 0.78rem;
}

.unassigned-banner {
  margin-top: 1rem;
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.unassigned-banner p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- Assign Material panel (n3) --------------------------------------------- */

.suggestion-box {
  padding: 1rem 1.1rem;
  border: 1px solid color-mix(in srgb, var(--instr-blue-fg) 30%, transparent);
  border-radius: var(--radius-sm);
  background: var(--instr-blue-bg);
  margin-bottom: 1.25rem;
}

.suggestion-box__eyebrow {
  margin: 0 0 0.5rem;
  color: var(--instr-blue-fg);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.suggestion-box__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.suggestion-box__desc {
  margin: 0 0 0.4rem;
  font-weight: 650;
}

.assign-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.suggestion-panel {
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.suggestion-panel__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: 1rem;
  align-items: start;
}

.suggestion-panel__theme {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.suggestion-panel__topic {
  align-items: flex-start;
  padding: 0;
}

.suggestion-panel__lo {
  align-items: flex-start;
  margin-left: 1.5rem;
  padding: 0.35rem 0;
  line-height: 1.45;
}

.suggestion-panel__topic input,
.suggestion-panel__lo input {
  flex: 0 0 auto;
  margin-top: 0.2rem;
}

.suggestion-panel__actions {
  padding-top: 0.25rem;
}

@media (max-width: 600px) {
  .structure-tree__toolbar {
    flex-direction: column;
  }

  .suggestion-panel__lo {
    margin-left: 0.75rem;
  }
}

.assign-checklist__theme-name {
  margin: 0 0 0.35rem;
  font-weight: 650;
}

.assign-checklist__lo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.2rem 0 0.2rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
}

/* ---- Course Settings (I4) ---------------------------------------------------- */

.settings-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: start;
}

.settings-column .input:disabled {
  color: var(--muted);
  cursor: not-allowed;
}

.strategy-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.strategy-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.strategy-card--active {
  background: var(--instr-dark);
  border-color: var(--instr-dark);
  color: #ffffff;
}

.strategy-card__title {
  margin: 0;
  font-weight: 650;
}

.strategy-card__subtitle {
  margin: 0;
  font-size: 0.8rem;
  opacity: 0.75;
}

.registration-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.registration-code__value {
  font-weight: 650;
  letter-spacing: 0.03em;
}

.roster-textarea {
  min-height: 10rem;
}

.roster-list {
  margin-top: 0.25rem;
}

.roster-list__rows {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-height: 14rem;
  overflow-y: auto;
}

.roster-list__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.roster-list__extended {
  color: var(--instr-amber-fg);
  font-size: 0.78rem;
}

.roster-list__empty {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- Question Bank browser (I7) --------------------------------------------- */

.bank-summary {
  margin: 0.25rem 0 1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.bank-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.bank-filters__search {
  flex: 1 1 220px;
  min-width: 200px;
}

.bank-filters select.input {
  width: auto;
  flex: 0 0 auto;
}

.bank-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.bank-row {
  display: grid;
  grid-template-columns: minmax(220px, 2.2fr) 0.7fr 1.1fr 0.7fr 1fr 1.4fr 1fr;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.bank-table__rows .bank-row:last-child {
  border-bottom: none;
}

.bank-row--head {
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 650;
}

.bank-row__stem {
  overflow-wrap: anywhere;
}

.bank-row__stem p {
  margin: 0;
}

.bank-row__type,
.bank-row__topic,
.bank-row__difficulty {
  color: var(--text);
}

.bank-row__actions {
  display: flex;
  gap: 0.4rem;
}

.bank-row__source-changed {
  color: var(--instr-amber-fg);
  font-size: 0.8rem;
  font-weight: 600;
}

.bank-footer {
  margin: 0.75rem 0 0.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.bank-source-banner {
  display: block;
  margin-top: 0.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--instr-amber-fg);
  border-radius: var(--radius-sm);
  background: var(--instr-amber-bg);
  color: var(--instr-amber-fg);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

/* ---- Question Detail / editor (I6) ------------------------------------------ */

.breadcrumb-back {
  display: inline-block;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
}

.breadcrumb-back:hover {
  color: var(--text);
}

.question-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 0.9fr);
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .question-detail-layout {
    grid-template-columns: 1fr;
  }
}

.question-editor {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 0.5rem;
}

.question-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}

.question-meta__label {
  color: var(--muted);
  font-weight: 600;
}

.question-meta-row label {
  color: var(--muted);
  font-size: 0.85rem;
  margin-right: 0.4rem;
}

.question-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  min-width: 0;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.lo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface-2);
  font-size: 0.82rem;
}

.lo-chip__remove {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.95rem;
  line-height: 1;
  padding: 0;
}

.lo-chip__remove:hover {
  color: var(--down);
}

.lo-chip-add {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  flex: 1 1 100%;
  min-width: 0;
  gap: 0.4rem;
}

.lo-chip-add__select {
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.lo-chip-add .btn {
  white-space: nowrap;
}

.option-editors {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 1rem 0;
}

.option-editor {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.option-editor__role-label {
  align-self: flex-start;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: var(--instr-gray-bg);
  color: var(--instr-gray-fg);
  font-size: 0.72rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.option-editor__explanation-label {
  color: var(--muted);
  font-size: 0.75rem;
}

.option-editor__explanation {
  min-height: 3rem;
}

.question-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.question-save-row {
  margin-top: 0.5rem;
}

/* Edited-field highlight (Task 15, Task E): toggled on stem/option/difficulty
 * inputs when their live editor value diverges from the loaded version's
 * baseline value (see question-detail.ts's `isFieldEdited`). Reset on save. */
.edited {
  border-color: var(--warn) !important;
  background: color-mix(in srgb, var(--warn) 10%, var(--surface-2)) !important;
}

.agent-report-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 1rem;
}

.agent-report-panel__title {
  margin: 0;
  font-size: 1rem;
}

.agent-report-block {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.agent-report-block__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  font-weight: 650;
  font-size: 0.85rem;
}

.agent-report-block__body {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.agent-report-empty {
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 600px) {
  .question-meta-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .lo-chip-add {
    grid-template-columns: 1fr;
  }

  .question-actions {
    flex-wrap: wrap;
  }
}

/* ---- Review Queue (I5) ------------------------------------------------------- */

.queue-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.queue-controls select.input {
  width: auto;
}

.queue-message {
  margin: 0 0 0.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-size: 0.85rem;
}

.queue-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.queue-row {
  display: grid;
  grid-template-columns: 1.75rem minmax(220px, 2.4fr) 1.1fr 0.9fr 1fr 1.4fr;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.queue-table__rows .queue-row:last-child {
  border-bottom: none;
}

.queue-row--head {
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 650;
}

.queue-row__stem {
  overflow-wrap: anywhere;
}

.queue-row__stem p {
  margin: 0;
}

.queue-row__flag {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  font-weight: 600;
}

.queue-row__flag--red {
  color: var(--instr-red-fg);
}

.queue-row__type-lo {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  color: var(--text);
}

.queue-row__type-lo span:last-child {
  color: var(--muted);
  font-size: 0.8rem;
}

.queue-row__actions {
  display: flex;
  gap: 0.4rem;
}

/* ---- Pre-seeding coverage + Generate (N9 / I12) ----------------------------- */

.preseeding-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  margin-bottom: 2rem;
}

.preseeding-row {
  display: grid;
  grid-template-columns: minmax(200px, 2fr) 1fr 0.7fr 0.7fr 1.1fr 1.3fr;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.preseeding-table__rows .preseeding-row:last-child {
  border-bottom: none;
}

.preseeding-row--head {
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 650;
}

.preseeding-row__topic,
.preseeding-row__target {
  color: var(--muted);
}

.preseeding-row__approved--good {
  color: var(--instr-green-fg);
  font-weight: 700;
}

.preseeding-row__approved--warn {
  color: var(--instr-amber-fg);
  font-weight: 700;
}

.preseeding-row__approved--bad {
  color: var(--instr-red-fg);
  font-weight: 700;
}

.preseeding-bulk-status {
  margin: -0.5rem 0 1.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.preseeding-form__hint {
  margin: 0.2rem 0 1.1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.preseeding-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.chip-btn {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}

.chip-btn:hover {
  border-color: var(--instr-green-fg);
  color: var(--instr-green-fg);
}

.preseeding-form__row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.1rem;
}

.preseeding-queued-message {
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in srgb, var(--instr-green-fg) 35%, transparent);
  border-radius: var(--radius-sm);
  background: var(--instr-green-bg);
  color: var(--instr-green-fg);
  font-size: 0.88rem;
  margin: 1rem 0;
}

.preseeding-queued-message a {
  color: inherit;
  font-weight: 650;
}

/* =============================================================================
   Student shell + design-system primitives (Task 1). Follows the wireframe
   *roughly* — blue/white language, not exact tokens. Mirrors the "Instructor
   shell" section above: re-colors the shared .sidebar/.nav__* rules rather
   than duplicating the nav layout for a third sidebar variant.
   ========================================================================== */

/* ---- Student shell -------------------------------------------------------- */

.sidebar--student {
  --sidebar-bg: var(--student-sidebar-bg);
  --sidebar-text: var(--student-sidebar-text);
  --sidebar-text-strong: #ffffff;
  --sidebar-active: rgba(255, 255, 255, 0.16);
}

.sidebar--student .brand {
  padding: 0.35rem 0.5rem 0.5rem;
}

.sidebar--student .brand__name {
  color: #ffffff;
  font-size: 1.15rem;
}

/* ---- Practice context panel (sidebar, in-session only) -------------------- */

.practice-context-slot:not(:empty) {
  margin-top: 0.5rem;
}

.practice-context {
  margin: 0 0.5rem;
  padding: 0.9rem 0.95rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.14);
}

.practice-context__eyebrow {
  margin: 0 0 0.2rem;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

.practice-context__lo {
  margin: 0 0 0.6rem;
  font-weight: 650;
  color: #ffffff;
}

.practice-context__status {
  margin: 0 0 0.4rem;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.92);
}

.practice-context__counts {
  margin: 0;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.75);
}

.practice-context__actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.75rem;
  padding-top: 0.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.practice-context__actions .btn {
  width: 100%;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}

.practice-context__actions .btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ---- Copyright / disclaimer footer (every student screen, PRD §4.1) ------- */

.copyright-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.copyright-footer__line {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--muted);
}

.copyright-footer__line:last-child {
  margin-bottom: 0;
}

/* ---- Breadcrumb ------------------------------------------------------------- */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.breadcrumb__sep {
  opacity: 0.6;
}

/* ---- Progress row (Topic-list / LO-list row) -------------------------------- */

.progress-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.progress-row + .progress-row {
  margin-top: 0.5rem;
}

.progress-row__index {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--muted);
  font-weight: 650;
  font-size: 0.85rem;
}

.progress-row__text {
  flex: 1;
  min-width: 0;
}

.progress-row__title {
  margin: 0;
  font-weight: 600;
}

.progress-row__meta {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.progress-row__continue {
  flex-basis: 100%;
  margin: -0.35rem 0 0 2.6rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 650;
}

/* ---- My Courses card grid / join box (Figma screen 1) ----------------------- */

.course-tile__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.join-box {
  margin-top: 1.5rem;
  padding: 1.1rem 1.25rem;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.join-box__label {
  margin: 0 0 0.6rem;
  font-weight: 650;
  font-size: 0.9rem;
}