.owner-courses-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--accent-line);
}

.owner-courses-section h2 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.owner-courses-sub {
  font-size: 0.88rem;
  color: var(--black-soft);
  opacity: 0.8;
  margin-bottom: 1.25rem;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.course-card {
  background: rgba(255, 255, 255, 0.32);
  border: 1px solid var(--accent-line);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.course-badge {
  align-self: flex-start;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  background: var(--black);
  color: var(--silver-light);
  border-radius: 4px;
}

.course-card h3 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
}

.course-desc {
  font-size: 0.88rem;
  color: var(--black-soft);
  flex: 1;
}

.course-meta {
  font-size: 0.78rem;
  opacity: 0.7;
}

.course-file {
  font-size: 0.8rem;
  color: var(--black);
  font-weight: 500;
}

.course-reserve {
  margin-top: 0.5rem;
  text-align: center;
}

.courses-empty {
  font-size: 0.9rem;
  color: var(--black-soft);
  opacity: 0.65;
  font-style: italic;
}

.module-item.owner-course .module-num {
  background: var(--black);
  color: var(--silver-light);
}

.module-item.owner-course .module-hours {
  background: rgba(10, 10, 10, 0.12);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Admin */
.admin-page { max-width: 720px; margin: 0 auto; }

.admin-login, .admin-form {
  background: rgba(255, 255, 255, 0.32);
  border: 1px solid var(--accent-line);
  border-radius: 10px;
  padding: 2rem;
  margin-top: 1.5rem;
}

.admin-form label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 1rem 0 0.35rem;
  opacity: 0.65;
}

.admin-form input,
.admin-form textarea,
.admin-form select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  font-family: inherit;
  border: 1px solid var(--accent-line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.5);
}

.admin-form textarea { min-height: 80px; resize: vertical; }

.admin-list { margin-top: 2rem; }

.admin-course-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--accent-line);
}

.admin-course-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.admin-course-item small {
  font-size: 0.8rem;
  opacity: 0.7;
}

.admin-msg {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 6px;
  font-size: 0.88rem;
}

.admin-msg.ok { background: rgba(20, 80, 40, 0.1); }
.admin-msg.err { background: rgba(139, 26, 26, 0.08); color: #6b1515; }

.admin-hint {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: #555;
  line-height: 1.5;
}

.admin-hint code {
  font-size: 0.85em;
  background: rgba(0, 0, 0, 0.06);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}