/* Network LMS — portal styles (mobile-first, dark-mode friendly) */

:root {
  --nlms-bg: var(--gray-50, #f8fafc);
  --nlms-fg: var(--gray-900, #0f172a);
  --nlms-muted: var(--gray-500, #64748b);
  --nlms-accent: #0ea5e9;
  --nlms-card-bg: #ffffff;
  --nlms-card-shadow: 0 1px 2px rgba(15,23,42,.06), 0 4px 16px rgba(15,23,42,.04);
  --nlms-radius: 12px;
}

[data-theme="dark"] :root,
.dark .nlms-catalog, .dark .nlms-course, .dark .nlms-lesson {
  --nlms-bg: #0b1220;
  --nlms-fg: #e2e8f0;
  --nlms-muted: #94a3b8;
  --nlms-card-bg: #111827;
}

.nlms-muted { color: var(--nlms-muted); }
.nlms-back { display:inline-block; margin-bottom: 1rem; color: var(--nlms-muted); text-decoration:none; }
.nlms-back:hover { color: var(--nlms-accent); }

/* Catalog grid */
.nlms-catalog { max-width: 1180px; margin: 2rem auto; padding: 0 1.25rem; }
.nlms-catalog__header { margin-bottom: 1.5rem; }
.nlms-grid {
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.nlms-card {
  background: var(--nlms-card-bg); border-radius: var(--nlms-radius);
  box-shadow: var(--nlms-card-shadow); overflow: hidden; text-decoration: none;
  color: inherit; display: flex; flex-direction: column;
  transition: transform .15s ease, box-shadow .15s ease;
}
.nlms-card:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(15,23,42,.10); }
.nlms-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.nlms-card__body { padding: 1rem 1.1rem 1.2rem; display: flex; flex-direction: column; gap: .5rem; }
.nlms-card__body h2 { font-size: 1.05rem; margin: .15rem 0 0; }
.nlms-card__meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: .5rem; font-size: .85rem; }
.nlms-pill { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--nlms-accent); }
.nlms-price { font-weight: 600; }
.nlms-tag { display: inline-block; padding: 2px 8px; font-size: .7rem; border-radius: 999px; background: #e2e8f0; }
.nlms-tag--free { background: #dcfce7; color: #15803d; }
.nlms-tag--ok { background: #dbeafe; color: #1d4ed8; }
.nlms-empty { padding: 3rem; text-align: center; color: var(--nlms-muted); }

/* Course detail */
.nlms-course { display: grid; gap: 2rem; max-width: 1180px; margin: 2rem auto; padding: 0 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 960px) { .nlms-course { grid-template-columns: 2fr 1fr; } .nlms-curriculum { position: sticky; top: 1rem; align-self: start; } }
.nlms-course__hero h1 { margin-bottom: .25rem; }
.nlms-cta { margin-top: 1rem; }
.nlms-btn {
  display: inline-block; background: var(--nlms-accent); color: #fff;
  padding: .65rem 1.1rem; border-radius: 8px; text-decoration: none; border: 0;
  cursor: pointer; font-weight: 600;
}
.nlms-btn:hover { filter: brightness(.95); }
.nlms-locked { color: var(--nlms-muted); }
.nlms-curriculum details { border: 1px solid rgba(148,163,184,.18); border-radius: 10px; padding: .65rem .9rem; margin-bottom: .65rem; background: var(--nlms-card-bg); }
.nlms-curriculum summary { cursor: pointer; font-weight: 600; }
.nlms-curriculum ol { margin: .5rem 0 0; padding-left: 1.2rem; }
.nlms-curriculum li { margin: .25rem 0; display: flex; gap: .5rem; align-items: center; }

/* Lesson player */
.nlms-lesson {
  display: grid; gap: 1.5rem; max-width: 1280px; margin: 1.5rem auto; padding: 0 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) { .nlms-lesson { grid-template-columns: 320px 1fr; } }
.nlms-lesson__sidebar { background: var(--nlms-card-bg); padding: 1rem; border-radius: var(--nlms-radius); box-shadow: var(--nlms-card-shadow); max-height: 80vh; overflow: auto; }
.nlms-lesson__sidebar details { margin-bottom: .6rem; }
.nlms-lesson__sidebar summary { cursor: pointer; font-weight: 600; }
.nlms-lesson__sidebar li.is-active a { color: var(--nlms-accent); font-weight: 600; }
.nlms-lesson__sidebar ol { padding-left: 1rem; margin: .5rem 0 0; }
.nlms-lesson__sidebar a { color: inherit; text-decoration: none; display: flex; gap: .4rem; align-items: baseline; }
.nlms-lesson__num { font-size: .75rem; color: var(--nlms-muted); }
.nlms-player { background: #000; border-radius: var(--nlms-radius); overflow: hidden; }
.nlms-iframe-wrap { position: relative; padding-top: 56.25%; }
.nlms-iframe-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.nlms-transcript { margin-top: 1.5rem; }
.nlms-lesson__actions { display: flex; align-items: center; gap: 1rem; margin-top: 1.25rem; }