.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.course-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  padding: 2rem;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.course-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.9rem;
  color: var(--text-light);
}

.course-card ul li::before {
  content: '•';
  margin-right: 0.6rem;
  color: var(--blue-neon);
}

.course-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.course-hero .hero-visual img {
  width: 100%;
  border-radius: 30px;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.modules-horizontal {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 1rem 0;
  margin-bottom: 2rem;
}

.module-btn {
  padding: 1rem 1.4rem;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-light);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.module-btn:hover,
.module-btn.active {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: white;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.course-meta-pill {
  padding: 1rem 1.1rem;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 0.45rem;
}

.course-meta-pill strong,
.course-meta-pill span {
  display: block;
}

.course-meta-pill strong {
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 600;
}

.course-meta-pill span {
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 700;
}

.module-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 28px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.module-card header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.lesson-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 1.5rem;
  margin-top: 1.2rem;
}

.lesson-card + .lesson-card {
  margin-top: 1rem;
}

.lesson-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-white);
  font-size: 0.8rem;
  font-weight: 700;
}

.lesson-detail {
  margin-top: 1rem;
  display: grid;
  gap: 1rem;
  color: var(--text-light);
}

.lesson-detail h5 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-white);
}

.lesson-detail p {
  margin: 0;
  line-height: 1.75;
}

.lesson-item {
  position: relative;
  border-radius: 22px;
  padding: 1.2rem 1.3rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  margin-top: 1rem;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.lesson-item:hover {
  transform: translateY(-1px);
}

.lesson-item.locked {
  filter: blur(0.8px);
  cursor: pointer;
  position: relative;
}

.lesson-item.locked::after {
  content: '🔒 Verrouillé — Débloquez la formation';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 22px;
  padding: 1rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lesson-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.course-overview-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.course-detail {
  display: grid;
  gap: 2.5rem;
  margin-top: 3rem;
}

.course-detail .course-header {
  display: grid;
  gap: 0.8rem;
  max-width: 900px;
}

.course-detail .section-label {
  display: inline-flex;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-light);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.premium-overview-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.premium-detail {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.unlock-note {
  margin-top: 1rem;
  color: var(--text-light);
  font-size: 0.95rem;
}

.unlock-message {
  margin-top: 1rem;
  min-height: 1.4rem;
  color: var(--blue-neon);
}

.unlock-modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.82);
  z-index: 2000;
  padding: 2rem;
}

.unlock-modal.hidden {
  display: none;
}

.unlock-panel {
  width: min(560px, 100%);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 32px;
  padding: 2rem;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.unlock-panel h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.unlock-panel p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

#unlock-form {
  display: grid;
  gap: 1rem;
}

#unlock-form input {
  width: 100%;
  padding: 1rem 1.2rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-white);
  outline: none;
}

#unlock-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-white);
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
}

.course-action-banner {
  margin-top: 2rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.course-action-banner h4 {
  margin: 0;
}

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

  .course-action-banner {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.lesson-meta {
  color: var(--text-light);
  margin-top: 0.75rem;
}

.locked-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-white);
  font-size: 0.85rem;
  font-weight: 700;
}

.video-grid,
.text-lesson-grid,
.live-grid {
  display: grid;
  gap: 1.5rem;
}

.video-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.video-card iframe {
  width: 100%;
  min-height: 300px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.text-lesson-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  padding: 1.5rem;
}

.exercise-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  padding: 1.5rem;
}

.exercise-card textarea {
  width: 100%;
  min-height: 140px;
  margin-top: 1rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-white);
  padding: 1rem;
}

.lesson-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.course-action-banner {
  margin-top: 2rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.course-action-banner h2 {
  margin: 0;
}

.premium-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
  z-index: 9999;
}

.premium-modal.active {
  display: flex;
}

.premium-modal-dialog {
  width: min(620px, 100%);
  background: rgba(10, 12, 18, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  padding: 2rem;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.35);
  position: relative;
}

.premium-modal-dialog h3 {
  margin: 0 0 1rem;
  color: white;
}

.premium-modal-dialog p {
  color: var(--text-light);
  line-height: 1.8;
}

.premium-modal-dialog input {
  width: 100%;
  padding: 1rem 1.2rem;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: white;
  margin-top: 1.3rem;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.modal-close {
  position: absolute;
  right: 1rem;
  top: 1rem;
  border: none;
  background: transparent;
  color: var(--text-white);
  font-size: 1.6rem;
  cursor: pointer;
}

.modal-feedback {
  margin-top: 1rem;
  min-height: 1.3rem;
  color: var(--text-light);
}

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

  .hero-meta {
    grid-template-columns: 1fr;
  }

  .course-action-banner {
    flex-direction: column;
    text-align: center;
  }
}