/**
 * Mahay digital — Design system inspiré Udemy & OpenClassrooms
 */

:root {
  --color-primary: #5624d0;
  --color-primary-hover: #401b9c;
  --color-primary-light: #f3f0ff;
  --color-teal: #0d9488;
  --color-teal-light: #ccfbf1;

  --color-header-bg: #1c1d1f;
  --color-header-text: #ffffff;
  --color-header-muted: #d1d7dc;

  --color-bg: #f7f9fa;
  --color-surface: #ffffff;
  --color-border: #d1d7dc;
  --color-border-light: #e8ecef;

  --color-text: #1c1d1f;
  --color-text-secondary: #6a6f73;
  --color-text-muted: #6a6f73;

  --color-success: #1e6055;
  --color-success-bg: #d1fae5;
  --color-error: #b32d0f;
  --color-error-bg: #fce8e6;

  --color-star: #e59819;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.12), 0 8px 24px rgba(0, 0, 0, 0.1);

  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --container: min(1180px, 94vw);
  --header-height: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

/* ─── Header ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none !important;
  flex-shrink: 0;
}

.logo__img {
  display: block;
  height: 48px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.logo__badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.45rem;
}

.logo:hover .logo__img {
  opacity: 0.92;
}

.nav {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav a {
  color: var(--color-header-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
}

.nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav .btn-nav {
  background: transparent;
  border: 1px solid #fff;
  color: #fff !important;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.nav .btn-nav:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff !important;
}

/* ─── Main & Footer ─── */
.main-content {
  padding: 2rem 0 4rem;
  min-height: calc(100vh - var(--header-height) - 200px);
}

.site-footer {
  background: var(--color-header-bg);
  color: var(--color-header-muted);
  padding: 3rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  display: block;
  height: 54px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-bottom: 0.75rem;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--color-header-muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  text-align: center;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--color-primary);
  color: #fff !important;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  text-decoration: none !important;
  transition: background 0.15s, transform 0.1s;
  white-space: nowrap;
}

.btn:hover {
  background: var(--color-primary-hover);
  color: #fff !important;
}

.btn:active {
  transform: scale(0.98);
}

.btn-small {
  font-size: 0.85rem;
  padding: 0.45rem 0.9rem;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text) !important;
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
  color: var(--color-text) !important;
}

.btn--cta {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  width: 100%;
}

.btn--outline-white {
  background: transparent;
  border: 1px solid #fff;
  color: #fff !important;
}

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff !important;
}

/* ─── Alerts ─── */
.alert {
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.alert-success {
  background: var(--color-success-bg);
  border: 1px solid #6ee7b7;
  color: var(--color-success);
}

.alert-error {
  background: var(--color-error-bg);
  border: 1px solid #fca5a5;
  color: var(--color-error);
}

/* ─── Hero (accueil) ─── */
.hero {
  background: linear-gradient(135deg, #1c1d1f 0%, #2d2f31 50%, #5624d0 100%);
  color: #fff;
  padding: 4rem 2rem;
  border-radius: var(--radius-lg);
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero__inner {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  margin: 0 0 1rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero .lead {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  margin: 0 auto 1.75rem;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── Section titles ─── */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.section-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
}

.section-header a {
  font-weight: 600;
  font-size: 0.9rem;
}

.section-subtitle {
  color: var(--color-text-secondary);
  margin: -0.75rem 0 1.5rem;
  font-size: 0.95rem;
}

/* ─── Course grid (Udemy cards) ─── */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.course-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.course-card__media {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #c4b5fd 0%, #5624d0 100%);
}

.course-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}

.course-card:hover .course-card__media img {
  transform: scale(1.03);
}

.course-card__body {
  padding: 0.85rem 1rem 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card__kicker {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-teal);
  margin: 0 0 0.35rem;
}

.course-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card h3 a {
  color: var(--color-text);
  text-decoration: none;
}

.course-card h3 a:hover {
  color: var(--color-primary);
}

.course-card__instructor {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin: 0 0 0.5rem;
}

.course-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: auto;
}

.course-card__rating {
  color: var(--color-star);
  font-weight: 700;
}

.course-card__price {
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-text);
  margin: 0.5rem 0 0;
}

.course-card__badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

/* ─── Catalogue page ─── */
.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}

.page-header p {
  color: var(--color-text-secondary);
  margin: 0;
}

.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.catalog-filters__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.catalog-filters__label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.catalog-filters select {
  min-width: 200px;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
}

.catalog-filters select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.catalog-filters__reset {
  font-size: 0.9rem;
  font-weight: 600;
  align-self: center;
  padding: 0.5rem 0;
}

.catalog-active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.catalog-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none !important;
}

.catalog-tag:hover {
  background: #e0d4ff;
}

.catalog-count {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.catalog-empty {
  padding: 3rem 2rem;
  text-align: center;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px dashed var(--color-border);
}

.catalog-pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  justify-content: center;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

.catalog-pagination__link,
.catalog-pagination__current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  text-decoration: none !important;
}

.catalog-pagination__link {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text) !important;
  font-weight: 600;
}

.catalog-pagination__link:hover {
  background: var(--color-bg);
}

.catalog-pagination__current {
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
}

/* Horizontal list cards (catalog alternative) */
.course-card-oc {
  display: grid;
  grid-template-columns: minmax(160px, 280px) 1fr;
  gap: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}

.course-card-oc:hover {
  box-shadow: var(--shadow-md);
}

.course-card-oc__media {
  display: block;
  align-self: stretch;
  min-height: 150px;
  background: #e2e8f0;
}

.course-card-oc__media img {
  width: 100%;
  height: 100%;
  min-height: 150px;
  object-fit: cover;
  display: block;
}

.course-card-oc__placeholder {
  width: 100%;
  height: 100%;
  min-height: 160px;
  background: linear-gradient(135deg, #c4b5fd 0%, #5624d0 100%);
}

.course-card-oc__body {
  padding: 1.1rem 1.25rem 1.25rem 0;
}

.course-card-oc__kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-teal);
  margin: 0 0 0.35rem;
}

.course-card-oc__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 0.65rem;
  line-height: 1.3;
}

.course-card-oc__title a {
  color: var(--color-text);
  text-decoration: none;
}

.course-card-oc__title a:hover {
  color: var(--color-primary);
}

.course-card-oc__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.65rem;
}

.course-card-oc__pill {
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.course-card-oc__excerpt {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
}

.course-card-oc__price {
  margin: 0;
  font-weight: 800;
  font-size: 1.05rem;
}

.catalog-oc__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ─── Course detail page ─── */
.course-page {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2rem;
  align-items: start;
}

.course-page__main {
  min-width: 0;
}

.course-hero-banner {
  background: var(--color-header-bg);
  color: #fff;
  margin: -2rem calc(50% - 50vw) 2rem;
  padding: 2.5rem calc(50vw - 50%);
  width: 100vw;
}

.course-hero-banner .breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.course-hero-banner .breadcrumb a:hover {
  color: #fff;
}

.course-hero-banner .breadcrumb {
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1.25rem;
}

.course-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #a78bfa;
  margin: 0 0 0.75rem;
}

.course-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.course-lead {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1rem;
  margin: 0 0 1rem;
  line-height: 1.65;
  max-width: 680px;
}

.course-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.course-hero-meta strong {
  color: #fff;
}

.course-page__sidebar {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

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

.course-sidebar-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #c4b5fd, #5624d0);
}

.course-sidebar-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-sidebar-card__body {
  padding: 1.25rem;
}

.course-price-tag {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.course-cta-block {
  margin-top: 0.5rem;
}

.course-sidebar-features {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  border-top: 1px solid var(--color-border-light);
  padding-top: 1rem;
}

.course-sidebar-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.course-sidebar-features li::before {
  content: "✓";
  color: var(--color-teal);
  font-weight: 700;
}

.oc-section {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border-light);
}

.oc-section:last-of-type {
  border-bottom: none;
}

.oc-section--muted {
  background: var(--color-bg);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
}

.oc-section__title {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.oc-section__intro {
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
  font-size: 0.95rem;
}

.oc-list {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.8;
}

.oc-list li {
  margin: 0.35rem 0;
}

.oc-part {
  margin-bottom: 1.5rem;
}

.oc-part__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--color-text);
  padding: 0.5rem 0.75rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}

.oc-toc {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.oc-toc__item {
  margin: 0;
  border-bottom: 1px solid var(--color-border-light);
}

.oc-toc__link,
.oc-toc__locked {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--color-text);
  transition: background 0.15s;
}

.oc-toc__link:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}

.oc-toc__check {
  color: var(--color-teal);
  font-weight: 700;
  flex-shrink: 0;
}

.oc-toc__locked {
  color: var(--color-text-secondary);
}

.oc-prose {
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.oc-instructor {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.oc-instructor__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.oc-instructor__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin: 0 0 0.25rem;
  font-weight: 700;
}

.oc-instructor__name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
}

.back-link {
  margin-top: 2rem;
}

.back-link a {
  font-weight: 600;
  font-size: 0.9rem;
}

/* ─── Dashboard ─── */
.dashboard-header {
  margin-bottom: 2rem;
}

.dashboard-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0 0 0.35rem;
}

.dashboard-greeting {
  color: var(--color-text-secondary);
  margin: 0;
}

.dashboard-courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.dashboard-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}

.dashboard-card:hover {
  box-shadow: var(--shadow-md);
}

.dashboard-card h2 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.dashboard-card h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.dashboard-card h2 a:hover {
  color: var(--color-primary);
}

.dashboard-card .progress-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

.dashboard-empty {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px dashed var(--color-border);
}

.dashboard-empty p {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

/* ─── Auth pages ─── */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 2rem 0;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.auth-card h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 0.35rem;
  text-align: center;
}

.auth-card__subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

.auth-form label,
.form-card label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"],
.auth-form input[type="url"],
.auth-form input[type="number"],
.auth-form select,
.auth-form textarea,
.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="password"],
.form-card input[type="url"],
.form-card input[type="number"],
.form-card input[type="file"],
.form-card select,
.form-card textarea {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.auth-form input:focus,
.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(86, 36, 208, 0.15);
}

.auth-form .btn,
.form-card .btn {
  width: 100%;
  margin-top: 0.5rem;
}

.auth-form .checkbox,
.form-card .checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auth-form .checkbox input,
.form-card .checkbox input {
  width: auto;
  margin-top: 0;
}

.auth-footer {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* ─── Lesson page ─── */
.lesson-page {
  max-width: 900px;
  margin: 0 auto;
}

.lesson-page__header {
  margin-bottom: 1.5rem;
}

.lesson-page h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0.5rem 0 0.25rem;
}

.lesson-module-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  margin: 0 0 1.5rem;
  background: #000;
  box-shadow: var(--shadow-md);
}

.video-wrap iframe,
.video-wrap video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: contain;
  background: #000;
}

.lesson-content {
  margin: 1.5rem 0;
  line-height: 1.75;
  font-size: 1rem;
}

.lesson-content h2,
.lesson-content h3 {
  margin-top: 1.5rem;
}

.lesson-content p {
  margin-bottom: 1rem;
}

.lesson-content ul,
.lesson-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.lesson-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

/* ─── Quiz ─── */
.quiz-box {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.quiz-box h2 {
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0 0 1rem;
}

.quiz-box fieldset {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  background: var(--color-bg);
}

.quiz-box legend {
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0 0.25rem;
}

.radio-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.5rem 0;
  cursor: pointer;
  font-size: 0.95rem;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.radio-row:hover {
  background: var(--color-primary-light);
}

/* ─── Badges & misc ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
}

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

.badge--inline {
  margin-bottom: 0.75rem;
}

.muted {
  color: var(--color-text-secondary);
}

.progress-bar-wrap {
  height: 8px;
  background: var(--color-border-light);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar-wrap.large {
  max-width: 100%;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #7c3aed);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.progress-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.price {
  color: var(--color-primary);
  font-weight: 700;
}

.price.big {
  font-size: 1.5rem;
}

/* ─── Forms (admin) ─── */
.form-card {
  max-width: 480px;
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.form-card--wide {
  max-width: 720px;
}

.admin-form label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.admin-form input,
.admin-form select,
.admin-form textarea {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
}

.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(86, 36, 208, 0.12);
}

.admin-module {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.admin-module h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

/* ─── Admin ─── */
.admin-header {
  background: #0f1114;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 100;
}

.admin-header .logo__img {
  height: 44px;
}

.admin-header .nav a {
  color: rgba(255, 255, 255, 0.7);
}

.admin-header .nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.admin-content {
  padding-top: 2rem;
}

.admin-stats,
.stats {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.admin-stats li,
.stats li {
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.admin-stats strong,
.stats strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.admin-table,
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.9rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.admin-table th,
.admin-table td,
.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.admin-table th,
.data-table th {
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.admin-table tr:last-child td,
.data-table tr:last-child td {
  border-bottom: none;
}

.admin-table tr:hover td,
.data-table tr:hover td {
  background: var(--color-primary-light);
}

.admin-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.admin-page-header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0;
}

.quiz-q {
  margin-bottom: 1rem;
  padding: 0.85rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
}

code {
  font-size: 0.85em;
  background: var(--color-bg);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
}

.grid.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.card h2,
.card h3 {
  margin-top: 0;
}

.card-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.enrollment-list {
  list-style: none;
  padding: 0;
}

.enrollment-item {
  background: var(--color-surface);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  border: 1px solid var(--color-border-light);
  display: grid;
  gap: 0.5rem;
  grid-template-columns: 1fr auto;
  align-items: center;
}

/* ─── Categories strip ─── */
.categories-strip {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none !important;
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}

.category-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary) !important;
  background: var(--color-primary-light);
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .course-page {
    grid-template-columns: 1fr;
  }

  .course-page__sidebar {
    position: static;
    order: -1;
  }

  .course-hero-banner {
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 2.5rem 1.25rem;
  }

  .course-card-oc {
    grid-template-columns: 1fr;
  }

  .course-card-oc__body {
    padding: 0 1rem 1.25rem;
  }

  .header-inner {
    gap: 0.75rem;
  }

  .nav {
    gap: 0;
  }

  .nav a {
    padding: 0.4rem 0.5rem;
    font-size: 0.85rem;
  }
}