/* Courses v2 learner shell — themes, drawer, identity chip, chat widget */

html.courses-v2-active,
html.courses-v2-active body {
  overflow: hidden;
  height: 100%;
}

html.courses-v2-active body {
  margin: 0;
}

/* Theme tokens (active theme on shell + html for player CSS) */
.courses-shell[data-courses-theme="dark"],
html[data-courses-theme="dark"] #courses-app-root:not([hidden]) {
  --courses-bg: #0f1419;
  --courses-surface: #1a1f26;
  --courses-surface-raised: #232a33;
  --courses-surface-elevated: #2a323c;
  --courses-text: #f1f5f9;
  --courses-text-muted: #b8c5d6;
  --courses-border: rgba(255, 255, 255, 0.14);
  --courses-border-strong: rgba(255, 255, 255, 0.28);
  --courses-accent: #0d9488;
  --courses-accent-hover: #14b8a6;
  --courses-accent-fg: #5eead4;
  --courses-accent-soft: rgba(45, 212, 191, 0.16);
  --courses-accent-border: rgba(94, 234, 212, 0.42);
  --courses-focus: #5eead4;
  --courses-btn-text-on-accent: #fff;
  --courses-overlay: rgba(0, 0, 0, 0.55);
  --courses-input-bg: #232a33;
  --courses-chip-bg: rgba(255, 255, 255, 0.07);
  --courses-fifi-accent: #f472b6;
  --courses-fifi-accent-hover: #f9a8d4;
  --courses-fifi-accent-soft: rgba(244, 114, 182, 0.18);
  --courses-fifi-accent-fg: #fbcfe8;
  --courses-general-bg: #422006;
  --courses-general-border: #fbbf24;
  --courses-general-text: #fef3c7;
  --courses-general-head-bg: #451a03;
  --courses-danger: #fca5a5;
  --courses-danger-soft: rgba(248, 113, 113, 0.14);
  --courses-danger-border: rgba(252, 165, 165, 0.45);
}

.courses-shell[data-courses-theme="light"],
html[data-courses-theme="light"] #courses-app-root:not([hidden]) {
  --courses-bg: #f4f7fb;
  --courses-surface: #ffffff;
  --courses-surface-raised: #eef2f7;
  --courses-surface-elevated: #f8fafc;
  --courses-text: #0f172a;
  --courses-text-muted: #475569;
  --courses-border: rgba(15, 23, 42, 0.12);
  --courses-border-strong: rgba(15, 23, 42, 0.22);
  --courses-accent: #0d9488;
  --courses-accent-hover: #0f766e;
  --courses-accent-fg: #0f766e;
  --courses-accent-soft: rgba(13, 148, 136, 0.12);
  --courses-accent-border: rgba(13, 148, 136, 0.35);
  --courses-focus: #0d9488;
  --courses-btn-text-on-accent: #fff;
  --courses-overlay: rgba(15, 23, 42, 0.35);
  --courses-input-bg: #fff;
  --courses-chip-bg: #eef2f7;
  --courses-fifi-accent: #db2777;
  --courses-fifi-accent-hover: #be185d;
  --courses-fifi-accent-soft: rgba(219, 39, 119, 0.1);
  --courses-fifi-accent-fg: #9d174d;
  --courses-general-bg: #fffbeb;
  --courses-general-border: #f59e0b;
  --courses-general-text: #78350f;
  --courses-general-head-bg: #fef3c7;
  --courses-danger: #b91c1c;
  --courses-danger-soft: rgba(220, 38, 38, 0.08);
  --courses-danger-border: rgba(220, 38, 38, 0.35);
}

#courses-app-root:not([hidden]) {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  background: var(--courses-bg, #f4f7fb);
  color: var(--courses-text, #0f172a);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
}

.courses-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  position: relative;
}

.courses-shell__header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--courses-border);
  background: var(--courses-surface);
  flex-shrink: 0;
}

.courses-shell__menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  min-width: 2.75rem;
  min-height: 2.75rem;
  border: 1px solid var(--courses-border-strong);
  border-radius: 0.5rem;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.courses-shell__menu-btn:hover,
.courses-shell__menu-btn:focus-visible {
  background: var(--courses-accent-soft);
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-shell__menu-icon {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: currentColor;
  box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor;
}

.courses-shell__title {
  flex: 1;
  margin: 0;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.courses-shell__header-actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-shrink: 0;
}

.courses-shell__select-wrap {
  display: flex;
  align-items: center;
}

.courses-shell__select {
  border: 1px solid var(--courses-border-strong);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  min-height: 2.25rem;
  background: var(--courses-input-bg);
  color: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  max-width: 7.5rem;
}

.courses-shell__select:focus-visible {
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-shell__metrics-btn,
.courses-shell__logout-btn {
  border: 1px solid var(--courses-border-strong);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  min-height: 2.25rem;
  background: var(--courses-chip-bg);
  color: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
}

.courses-shell__metrics-btn:hover,
.courses-shell__metrics-btn:focus-visible,
.courses-shell__logout-btn:hover,
.courses-shell__logout-btn:focus-visible {
  background: var(--courses-accent);
  color: var(--courses-btn-text-on-accent);
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-user-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: min(14rem, 38vw);
  padding: 0.2rem 0.55rem 0.2rem 0.2rem;
  border-radius: 999px;
  border: 1px solid var(--courses-border);
  background: var(--courses-chip-bg);
}

.courses-user-chip__avatar {
  position: relative;
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--courses-accent-soft);
  border: 1px solid var(--courses-accent-border);
}

.courses-user-chip__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.courses-user-chip__initials {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--courses-accent-fg);
}

.courses-user-chip__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.courses-user-chip__name {
  font-size: 0.72rem;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.courses-user-chip__email {
  font-size: 0.62rem;
  color: var(--courses-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.courses-user-chip__badge {
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--courses-accent-fg);
  margin-top: 0.1rem;
}

.courses-shell__metrics-panel {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--courses-border);
  background: var(--courses-surface-raised);
}

.courses-shell__metrics-panel h2 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--courses-text);
}

.courses-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.courses-metric-card {
  border-radius: 0.85rem;
  padding: 0.75rem;
  background: var(--courses-chip-bg);
  border: 1px solid var(--courses-border);
  text-align: left;
  display: grid;
  gap: 0.45rem;
}

.courses-metric-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.courses-metric-card__label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--courses-text);
  line-height: 1.2;
}

.courses-metric-card__value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--courses-accent, #0d9488);
  font-variant-numeric: tabular-nums;
}

.courses-metric-card__desc {
  margin: 0;
  font-size: 0.68rem;
  line-height: 1.35;
  color: var(--courses-text-muted);
}

.courses-metric-bar__track {
  height: 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.courses-metric-bar__fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #0d9488, #2dd4bf);
  transition: width 0.6s ease;
}

.courses-metric-ring {
  position: relative;
  width: 3rem;
  height: 3rem;
  margin: 0 auto;
}

.courses-metric-ring__svg {
  width: 100%;
  height: 100%;
}

.courses-metric-ring__bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 4;
}

.courses-metric-ring__fill {
  fill: none;
  stroke: #38bdf8;
  stroke-width: 4;
  stroke-linecap: round;
  transition: stroke-dasharray 0.6s ease;
}

.courses-metric-ring__pct {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--courses-text-muted);
}

.courses-metric-heart__svg {
  width: 3rem;
  height: 2.75rem;
  display: block;
  margin: 0 auto;
}

.courses-metric-heart__bg {
  fill: rgba(255, 255, 255, 0.1);
}

.courses-metric-heart__fill {
  fill: #f472b6;
  transition: clip-path 0.6s ease;
}

.courses-metric-float {
  position: fixed;
  z-index: 9600;
  pointer-events: none;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--courses-accent, #0d9488);
  opacity: 0;
  transition: opacity 0.25s ease, transform 1.8s ease;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

.courses-metric-float--show {
  opacity: 1;
  transform: translate(-50%, -2.5rem) !important;
}

.courses-shell__metrics-btn--pulse {
  animation: courses-metrics-pulse 1.1s ease;
}

@keyframes courses-metrics-pulse {
  0%,
  100% {
    box-shadow: none;
  }
  50% {
    box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.35);
  }
}

@media (min-width: 900px) {
  .courses-metrics-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.courses-shell__main {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 0;
}

.courses-shell__main[data-shell-mode="catalog"] .courses-view--catalog,
.courses-shell__main[data-shell-mode="course"] .courses-view--course,
.courses-shell__main[data-shell-mode="player"] .courses-view--player {
  display: flex;
}

.courses-view {
  flex: 1;
  min-height: 0;
  flex-direction: column;
  overflow: hidden;
}

.courses-view[hidden] {
  display: none !important;
}

.courses-view__body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
}

.courses-view__resume {
  flex-shrink: 0;
  padding: 0.5rem 1rem 0;
}

.courses-view__fifi {
  flex-shrink: 0;
  padding: 1rem 1.25rem 0;
}

.courses-resume-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.65rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--courses-accent-border);
  background: linear-gradient(90deg, var(--courses-accent-soft), var(--courses-chip-bg));
}

.courses-resume-bar__text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.courses-resume-bar__label {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--courses-text-muted);
}

.courses-resume-bar__title {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--courses-text);
}

.courses-resume-bar__btn {
  border: none;
  border-radius: 999px;
  padding: 0.45rem 1rem;
  min-height: 2.5rem;
  background: var(--courses-accent);
  color: var(--courses-btn-text-on-accent);
  font-weight: 800;
  font-size: 0.78rem;
  cursor: pointer;
  flex-shrink: 0;
}

.courses-resume-bar__btn:hover,
.courses-resume-bar__btn:focus-visible {
  background: var(--courses-accent-hover);
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-catalog-nav {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.courses-catalog-nav__header {
  flex-shrink: 0;
  padding: 1rem 1.25rem 0.65rem;
  border-bottom: 1px solid var(--courses-border);
  background: var(--courses-surface);
}

.courses-catalog-nav__toolbar {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.courses-catalog-nav__back {
  border: 1px solid var(--courses-border-strong);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  min-height: 2.25rem;
  background: var(--courses-chip-bg);
  color: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.courses-catalog-nav__back:hover,
.courses-catalog-nav__back:focus-visible {
  border-color: var(--courses-accent);
  background: var(--courses-accent-soft);
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-catalog-nav__crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.75rem;
}

.courses-catalog-nav__crumb {
  border: none;
  background: transparent;
  color: var(--courses-accent-fg);
  font-weight: 700;
  padding: 0.15rem 0.25rem;
  cursor: pointer;
  border-radius: 0.25rem;
}

.courses-catalog-nav__crumb--current {
  color: var(--courses-text-muted);
  cursor: default;
  font-weight: 600;
}

.courses-catalog-nav__sep {
  color: var(--courses-text-muted);
  opacity: 0.65;
}

.courses-catalog-nav__heading {
  margin: 0;
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--courses-text);
}

.courses-catalog-nav__sync {
  margin: 0.35rem 0 0;
  font-size: 0.72rem;
  color: var(--courses-text-muted);
}

.courses-catalog-nav__grid {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1rem 1.25rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  align-content: start;
}

@keyframes courses-card-fade-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.courses-catalog-nav__grid > .courses-nav-card,
.courses-course-hub__grid > .courses-nav-card {
  animation: courses-card-fade-in 0.52s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.courses-catalog-nav__grid > .courses-nav-card:nth-child(1),
.courses-course-hub__grid > .courses-nav-card:nth-child(1) {
  animation-delay: 0ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(2),
.courses-course-hub__grid > .courses-nav-card:nth-child(2) {
  animation-delay: 65ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(3),
.courses-course-hub__grid > .courses-nav-card:nth-child(3) {
  animation-delay: 130ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(4),
.courses-course-hub__grid > .courses-nav-card:nth-child(4) {
  animation-delay: 195ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(5),
.courses-course-hub__grid > .courses-nav-card:nth-child(5) {
  animation-delay: 260ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(6),
.courses-course-hub__grid > .courses-nav-card:nth-child(6) {
  animation-delay: 325ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(7),
.courses-course-hub__grid > .courses-nav-card:nth-child(7) {
  animation-delay: 390ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(8),
.courses-course-hub__grid > .courses-nav-card:nth-child(8) {
  animation-delay: 455ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(9),
.courses-course-hub__grid > .courses-nav-card:nth-child(9) {
  animation-delay: 520ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(10),
.courses-course-hub__grid > .courses-nav-card:nth-child(10) {
  animation-delay: 585ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(11),
.courses-course-hub__grid > .courses-nav-card:nth-child(11) {
  animation-delay: 650ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(12),
.courses-course-hub__grid > .courses-nav-card:nth-child(12) {
  animation-delay: 715ms;
}
.courses-catalog-nav__grid > .courses-nav-card:nth-child(n + 13),
.courses-course-hub__grid > .courses-nav-card:nth-child(n + 13) {
  animation-delay: 780ms;
}

.courses-catalog-nav__empty,
.courses-landing__error {
  margin: 0;
  padding: 0.5rem 0;
  color: var(--courses-text-muted);
  line-height: 1.5;
}

.courses-landing__retry {
  border: none;
  border-radius: 999px;
  padding: 0.55rem 1.25rem;
  min-height: 2.75rem;
  background: var(--courses-accent);
  color: var(--courses-btn-text-on-accent);
  font-weight: 800;
  cursor: pointer;
  margin-top: 0.75rem;
}

/* Navigation cards */
.courses-nav-card {
  position: relative;
  display: flex;
  align-items: stretch;
  text-align: left;
  width: 100%;
  min-height: 7.25rem;
  padding: 0;
  border-radius: 1rem;
  border: 1px solid var(--courses-border);
  background: var(--courses-surface);
  color: inherit;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.courses-shell[data-courses-theme="dark"] .courses-nav-card {
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
}

.courses-nav-card--l1 { --card-accent: #0d9488; --card-tint: rgba(13, 148, 136, 0.14); --card-deep: rgba(13, 148, 136, 0.28); }
.courses-nav-card--l2 { --card-accent: #2563eb; --card-tint: rgba(37, 99, 235, 0.14); --card-deep: rgba(37, 99, 235, 0.28); }
.courses-nav-card--l3 { --card-accent: #7c3aed; --card-tint: rgba(124, 58, 237, 0.14); --card-deep: rgba(124, 58, 237, 0.28); }
.courses-nav-card--l4 { --card-accent: #b8860b; --card-tint: rgba(184, 134, 11, 0.16); --card-deep: rgba(184, 134, 11, 0.3); }
.courses-nav-card--l5 { --card-accent: #db2777; --card-tint: rgba(219, 39, 119, 0.14); --card-deep: rgba(219, 39, 119, 0.28); }

.courses-shell[data-courses-theme="dark"] .courses-nav-card--l1,
html[data-courses-theme="dark"] .courses-nav-card--l1 { --card-accent: #5eead4; --card-tint: rgba(94, 234, 212, 0.12); --card-deep: rgba(94, 234, 212, 0.22); }
.courses-shell[data-courses-theme="dark"] .courses-nav-card--l2,
html[data-courses-theme="dark"] .courses-nav-card--l2 { --card-accent: #93c5fd; --card-tint: rgba(147, 197, 253, 0.12); --card-deep: rgba(147, 197, 253, 0.2); }
.courses-shell[data-courses-theme="dark"] .courses-nav-card--l3,
html[data-courses-theme="dark"] .courses-nav-card--l3 { --card-accent: #c4b5fd; --card-tint: rgba(196, 181, 253, 0.12); --card-deep: rgba(196, 181, 253, 0.2); }
.courses-shell[data-courses-theme="dark"] .courses-nav-card--l4,
html[data-courses-theme="dark"] .courses-nav-card--l4 { --card-accent: #fcd34d; --card-tint: rgba(252, 211, 77, 0.14); --card-deep: rgba(252, 211, 77, 0.22); }
.courses-shell[data-courses-theme="dark"] .courses-nav-card--l5,
html[data-courses-theme="dark"] .courses-nav-card--l5 { --card-accent: #f9a8d4; --card-tint: rgba(249, 168, 212, 0.12); --card-deep: rgba(249, 168, 212, 0.2); }

.courses-nav-card--level {
  min-height: 9rem;
  background: linear-gradient(135deg, var(--card-tint) 0%, var(--courses-surface) 55%);
}

.courses-nav-card--course {
  min-height: 8.25rem;
  background: linear-gradient(160deg, var(--courses-surface) 0%, var(--card-tint) 100%);
}

.courses-nav-card--module {
  min-height: 7.5rem;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem 1.05rem;
  cursor: default;
}

.courses-nav-card--module.courses-nav-card--entitled {
  cursor: pointer;
}

.courses-nav-card--locked {
  background: var(--courses-chip-bg);
  border-style: dashed;
}

.courses-nav-card--locked .courses-nav-card__title,
.courses-nav-card--locked .courses-nav-card__desc,
.courses-nav-card--locked .courses-nav-card__meta {
  color: var(--courses-text-muted);
}

.courses-nav-card:not(.courses-nav-card--locked):hover,
.courses-nav-card:not(.courses-nav-card--locked):focus-visible {
  transform: translateY(-2px);
  border-color: var(--card-accent, var(--courses-accent));
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.12);
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .courses-nav-card:not(.courses-nav-card--locked):hover,
  .courses-nav-card:not(.courses-nav-card--locked):focus-visible {
    transition:
      transform 0.18s ease,
      box-shadow 0.18s ease,
      border-color 0.18s ease;
  }
}

.courses-nav-card__glyph {
  flex-shrink: 0;
  width: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--card-accent);
  background: linear-gradient(180deg, var(--card-deep), transparent);
}

.courses-nav-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0.95rem 0.85rem 0.95rem 0;
  min-width: 0;
}

.courses-nav-card--course .courses-nav-card__body {
  padding: 0.95rem 0.85rem 0.95rem 0;
}

.courses-nav-card__badge {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.courses-nav-card__badge--open {
  background: var(--courses-accent-soft);
  color: var(--courses-accent-fg);
  border: 1px solid var(--courses-accent-border);
}

.courses-nav-card__badge--preview {
  background: var(--courses-chip-bg);
  color: var(--courses-text-muted);
  border: 1px solid var(--courses-border);
}

.courses-nav-card__badge--lock {
  background: rgba(100, 116, 139, 0.12);
  color: var(--courses-text-muted);
  border: 1px solid var(--courses-border);
}

.courses-nav-card__kicker {
  display: block;
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--card-accent, var(--courses-accent));
  margin-bottom: 0.3rem;
}

.courses-nav-card__title {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.35rem;
  padding-right: 4.5rem;
  color: var(--courses-text);
}

.courses-nav-card--level .courses-nav-card__title {
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
}

.courses-nav-card__desc {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--courses-text-muted);
  margin-bottom: 0.45rem;
}

.courses-nav-card__meta {
  display: block;
  margin-top: auto;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--courses-text-muted);
}

.courses-nav-card__meta--sub {
  margin-top: 0.15rem;
  font-size: 0.72rem;
  color: var(--card-accent, var(--courses-accent));
}

.courses-nav-card__cta {
  display: inline-block;
  margin-top: auto;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--card-accent, var(--courses-accent));
}

.courses-nav-card__shop {
  margin-top: auto;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--courses-accent-fg);
  text-decoration: none;
}

.courses-nav-card__shop:hover,
.courses-nav-card__shop:focus-visible {
  text-decoration: underline;
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-nav-card__arrow {
  position: absolute;
  right: 0.85rem;
  bottom: 0.85rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--card-accent, var(--courses-accent));
}

/* Course hub — full viewport, separate from catalog */
.courses-course-hub {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.courses-course-hub__hero {
  flex-shrink: 0;
  padding: 1.25rem 1.5rem 1rem;
  border-bottom: 1px solid var(--courses-border);
  background: linear-gradient(180deg, var(--card-tint, var(--courses-accent-soft)), var(--courses-surface));
}

.courses-course-hub--l1 { --card-tint: rgba(13, 148, 136, 0.12); --card-accent: #0d9488; }
.courses-course-hub--l2 { --card-tint: rgba(37, 99, 235, 0.12); --card-accent: #2563eb; }
.courses-course-hub--l3 { --card-tint: rgba(124, 58, 237, 0.12); --card-accent: #7c3aed; }
.courses-course-hub--l4 { --card-tint: rgba(184, 134, 11, 0.14); --card-accent: #b8860b; }
.courses-course-hub--l5 { --card-tint: rgba(219, 39, 119, 0.12); --card-accent: #db2777; }

.courses-shell[data-courses-theme="dark"] .courses-course-hub--l1,
html[data-courses-theme="dark"] .courses-course-hub--l1 { --card-tint: rgba(94, 234, 212, 0.1); --card-accent: #5eead4; }
.courses-shell[data-courses-theme="dark"] .courses-course-hub--l2,
html[data-courses-theme="dark"] .courses-course-hub--l2 { --card-tint: rgba(147, 197, 253, 0.1); --card-accent: #93c5fd; }
.courses-shell[data-courses-theme="dark"] .courses-course-hub--l3,
html[data-courses-theme="dark"] .courses-course-hub--l3 { --card-tint: rgba(196, 181, 253, 0.1); --card-accent: #c4b5fd; }
.courses-shell[data-courses-theme="dark"] .courses-course-hub--l4,
html[data-courses-theme="dark"] .courses-course-hub--l4 { --card-tint: rgba(252, 211, 77, 0.12); --card-accent: #fcd34d; }
.courses-shell[data-courses-theme="dark"] .courses-course-hub--l5,
html[data-courses-theme="dark"] .courses-course-hub--l5 { --card-tint: rgba(249, 168, 212, 0.1); --card-accent: #f9a8d4; }

.courses-course-hub__back {
  border: 1px solid var(--courses-border-strong);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  min-height: 2.25rem;
  margin-bottom: 0.85rem;
  background: var(--courses-surface);
  color: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.courses-course-hub__kicker {
  margin: 0 0 0.25rem;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--card-accent);
}

.courses-course-hub__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--courses-text);
}

.courses-course-hub__lead {
  margin: 0 0 0.5rem;
  max-width: 42rem;
  line-height: 1.5;
  color: var(--courses-text-muted);
}

.courses-course-hub__meta {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--card-accent);
}

.courses-course-hub__grid {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1rem 1.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  align-content: start;
}

.courses-course-hub__empty {
  color: var(--courses-text-muted);
}

.courses-view--player .courses-view__body {
  padding: 1rem 1.25rem 1.25rem;
}

.courses-drawer__sync {
  margin: 0;
  padding: 0 1rem 0.5rem;
  font-size: 0.68rem;
  color: var(--courses-text-muted);
  line-height: 1.4;
}

.courses-drawer__module-btn--locked {
  cursor: not-allowed;
  color: var(--courses-text-muted);
  background: var(--courses-chip-bg);
  border-color: var(--courses-border);
}

.courses-drawer__lock {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--courses-text-muted);
}

.courses-player__placeholder {
  color: var(--courses-text-muted);
  font-style: italic;
}

/* Drawer */
.courses-drawer {
  position: fixed;
  inset: 0;
  z-index: 9100;
  display: flex;
}

.courses-drawer[hidden] {
  display: none;
}

.courses-drawer__backdrop {
  flex: 1;
  border: none;
  background: var(--courses-overlay);
  cursor: pointer;
}

.courses-drawer__inner {
  width: min(20rem, 88vw);
  height: 100%;
  background: var(--courses-surface);
  border-right: 1px solid var(--courses-border);
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
}

.courses-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--courses-border);
}

.courses-drawer__head h2 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--courses-text);
}

.courses-drawer__close {
  border: none;
  background: transparent;
  color: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.5rem;
}

.courses-drawer__close:focus-visible {
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-drawer__nav {
  overflow: auto;
  padding: 0.75rem;
  flex: 1;
}

.courses-drawer__group {
  margin-bottom: 1rem;
}

.courses-drawer__group h3 {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--courses-text-muted);
}

.courses-drawer__group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.courses-drawer__module-btn {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  padding: 0.65rem 0.75rem;
  min-height: 2.75rem;
  margin-bottom: 0.25rem;
  background: var(--courses-chip-bg);
  color: inherit;
  cursor: pointer;
  font-size: 0.85rem;
}

.courses-drawer__module-btn:hover,
.courses-drawer__module-btn:focus-visible {
  border-color: var(--courses-accent);
  background: var(--courses-accent-soft);
  outline: none;
}

.courses-drawer__empty {
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--courses-text-muted);
}

/* FIFI welcome on catalog home */
.courses-fifi-welcome {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin: 0;
  padding: 1.1rem 1.25rem;
  border-radius: 0.85rem;
  background: linear-gradient(135deg, var(--courses-fifi-accent-soft), var(--courses-accent-soft));
  border: 1px solid var(--courses-border);
}

.courses-fifi-welcome__avatar {
  flex: 0 0 2.75rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(145deg, #db2777, #7c3aed);
  box-shadow: 0 4px 14px rgba(219, 39, 119, 0.35);
}

.courses-fifi-welcome__body {
  flex: 1;
  min-width: 0;
}

.courses-fifi-welcome__kicker {
  margin: 0 0 0.2rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--courses-text-muted);
}

.courses-fifi-welcome__title {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  line-height: 1.25;
  color: var(--courses-text);
}

.courses-fifi-welcome__lead {
  margin: 0 0 0.85rem;
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--courses-text-muted);
}

.courses-fifi-welcome__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.courses-fifi-welcome__chip {
  border: 1px solid var(--courses-border);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  min-height: 2.25rem;
  background: var(--courses-surface);
  color: var(--courses-text);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.courses-fifi-welcome__chip:hover,
.courses-fifi-welcome__chip:focus-visible {
  border-color: var(--courses-fifi-accent);
  color: var(--courses-fifi-accent-fg);
  background: var(--courses-fifi-accent-soft);
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-chat-widget__fab--pulse {
  animation: courses-fifi-fab-pulse 1.6s ease-in-out infinite;
}

@keyframes courses-fifi-fab-pulse {
  0%,
  100% {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 0 0 rgba(219, 39, 119, 0.45);
  }
  50% {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 0 0.55rem rgba(219, 39, 119, 0.15);
  }
}

.courses-shell[data-courses-theme="dark"] .courses-chat-widget__fab--pulse {
  animation-name: courses-fifi-fab-pulse-dark;
}

@keyframes courses-fifi-fab-pulse-dark {
  0%,
  100% {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 0 rgba(244, 114, 182, 0.5);
  }
  50% {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 0.55rem rgba(244, 114, 182, 0.18);
  }
}

@media (prefers-reduced-motion: reduce) {
  .courses-chat-widget__fab--pulse {
    animation: none;
    outline: 2px solid var(--courses-fifi-accent, #db2777);
    outline-offset: 3px;
  }
}

/* Chat widget */
.courses-chat-widget {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 9200;
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: 0.65rem;
  pointer-events: none;
}

.courses-chat-widget__fab,
.courses-chat-widget__panel {
  pointer-events: auto;
}

.courses-chat-widget__panel {
  margin-bottom: 0;
}

.courses-chat-widget__fab {
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.15rem;
  min-height: 2.75rem;
  background: var(--courses-fifi-accent);
  color: #fff;
  font-weight: 800;
  font-size: 0.8rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.courses-chat-widget__fab:hover,
.courses-chat-widget__fab:focus-visible {
  background: var(--courses-fifi-accent-hover);
  color: #fff;
  outline: 2px solid var(--courses-focus);
  outline-offset: 2px;
}

.courses-chat-widget__panel {
  width: min(22rem, calc(100vw - 2rem));
  max-height: min(24rem, 50vh);
  display: flex;
  flex-direction: column;
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--courses-surface);
  border: 1px solid var(--courses-border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.courses-chat-widget__panel[hidden] {
  display: none;
}

.courses-chat-widget__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--courses-border);
  font-weight: 800;
  color: var(--courses-text);
  background: var(--courses-surface-raised);
}

.courses-chat-widget__head button {
  border: none;
  background: transparent;
  color: inherit;
  font-size: 1.25rem;
  cursor: pointer;
  width: 2.25rem;
  height: 2.25rem;
}

.courses-chat-widget__body {
  flex: 1;
  overflow: auto;
  padding: 0.75rem;
  font-size: 0.85rem;
  color: var(--courses-text);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.courses-chat-widget__status {
  margin: 0;
  padding: 0 0.75rem 0.35rem;
  font-size: 0.72rem;
  color: var(--courses-text-muted);
}

.courses-chat-widget__status[hidden] {
  display: none;
}

.courses-chat-msg {
  max-width: 92%;
  border-radius: 0.65rem;
  padding: 0.45rem 0.65rem;
  line-height: 1.45;
}

.courses-chat-msg p {
  margin: 0;
}

.courses-chat-msg--user {
  align-self: flex-end;
  background: var(--courses-accent-soft);
  color: var(--courses-text);
  border: 1px solid var(--courses-accent-border);
}

.courses-chat-msg--fifi {
  align-self: flex-start;
  background: var(--courses-surface-raised);
  color: var(--courses-text);
  border: 1px solid var(--courses-border);
}

.courses-chat-msg--general {
  border-color: var(--courses-general-border);
  background: var(--courses-general-bg);
  color: var(--courses-general-text);
}

.courses-chat-widget__panel--general {
  border-color: var(--courses-general-border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
}

.courses-chat-widget__panel--general .courses-chat-widget__head {
  background: var(--courses-general-head-bg);
  color: var(--courses-general-text);
  border-bottom-color: var(--courses-general-border);
}

/* Sign-in gate (Courses v2) */
.courses-auth {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--courses-bg, #f8fafc);
}

.courses-auth__card {
  width: min(24rem, 100%);
  padding: 1.75rem 1.5rem;
  border-radius: 0.85rem;
  background: var(--courses-surface, #fff);
  border: 1px solid var(--courses-border, #e2e8f0);
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.08);
}

.courses-auth__title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--courses-text, #0f172a);
}

.courses-auth__lead {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--courses-text-muted, #64748b);
}

.courses-auth__status,
.courses-auth__error {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
}

.courses-auth__error {
  color: var(--courses-danger);
}

.courses-auth__google {
  width: 100%;
  border: 1px solid var(--courses-border-strong, #cbd5e1);
  border-radius: 0.55rem;
  padding: 0.65rem 1rem;
  min-height: 2.75rem;
  background: var(--courses-input-bg, #fff);
  color: var(--courses-text, #0f172a);
  font-weight: 700;
  cursor: pointer;
}

.courses-auth__google:hover,
.courses-auth__google:focus-visible {
  border-color: var(--courses-accent, #2563eb);
  outline: 2px solid var(--courses-focus, #93c5fd);
  outline-offset: 2px;
}

.courses-auth__divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  color: var(--courses-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.courses-auth__divider::before,
.courses-auth__divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--courses-border);
}

.courses-auth__label {
  display: block;
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  font-weight: 700;
}

.courses-auth__input {
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 0.75rem;
  border: 1px solid var(--courses-border-strong);
  border-radius: 0.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--courses-input-bg, #fff);
  color: inherit;
}

.courses-auth__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.courses-auth__submit {
  border: none;
  border-radius: 0.5rem;
  padding: 0.55rem 1rem;
  min-height: 2.5rem;
  background: var(--courses-accent, #2563eb);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}

.courses-auth__link {
  border: none;
  background: transparent;
  color: var(--courses-accent-fg, var(--courses-accent, #2563eb));
  font-size: 0.82rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

.courses-auth__alt {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 0.82rem;
}

.courses-chat-widget__foot {
  padding: 0.5rem;
  border-top: 1px solid var(--courses-border);
}

.courses-chat-widget__foot input {
  width: 100%;
  box-sizing: border-box;
  border-radius: 0.5rem;
  border: 1px solid var(--courses-border-strong);
  padding: 0.45rem 0.6rem;
  background: var(--courses-input-bg);
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 720px) {
  .courses-catalog-nav__grid,
  .courses-course-hub__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .courses-catalog-nav__header,
  .courses-course-hub__hero {
    padding-inline: 2rem;
  }

  .courses-view__fifi,
  .courses-view__resume {
    padding-inline: 2rem;
  }

  .courses-catalog-nav__grid,
  .courses-course-hub__grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    padding-inline: 2rem;
  }

  .courses-nav-card--level {
    min-height: 10rem;
  }

  .courses-view--player .courses-view__body {
    padding: 1.25rem 2rem 1.5rem;
  }
}

@media (min-width: 1200px) {
  .courses-catalog-nav__grid,
  .courses-course-hub__grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

@media (max-width: 900px) {
  .courses-shell__select-wrap--theme {
    display: none;
  }

  .courses-user-chip__email,
  .courses-user-chip__badge {
    display: none;
  }

  .courses-user-chip {
    max-width: 8rem;
    padding-right: 0.35rem;
  }
}

@media (max-width: 720px) {
  .courses-metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .courses-shell__header-actions .courses-shell__metrics-btn {
    display: none;
  }

  .courses-shell__logout-btn {
    padding-inline: 0.65rem;
  }

  .courses-shell__select {
    max-width: 5.5rem;
  }

  .courses-view--player .courses-view__body {
    padding: 1rem 0.85rem 5rem;
  }

  .courses-chat-widget {
    right: 0.65rem;
    bottom: 0.65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .courses-metric-card,
  .courses-nav-card {
    transition: none;
  }

  .courses-catalog-nav__grid > .courses-nav-card,
  .courses-course-hub__grid > .courses-nav-card {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

@media (prefers-contrast: more) {
  .courses-shell__select,
  .courses-shell__metrics-btn,
  .courses-shell__logout-btn,
  .courses-drawer__module-btn,
  .courses-nav-card {
    border-width: 2px;
  }

  .courses-shell[data-courses-theme="light"],
  html[data-courses-theme="light"] #courses-app-root:not([hidden]) {
    --courses-text-muted: #334155;
  }

  .courses-shell[data-courses-theme="dark"],
  html[data-courses-theme="dark"] #courses-app-root:not([hidden]) {
    --courses-text-muted: #e2e8f0;
  }
}