/**
 * Component: LMS Entity Cards
 * -----------------------------------------------------------------------
 * Presentation-only card variants for LMS content types. These style
 * markup that will eventually be populated by the lms-core plugin
 * (course/lesson/quiz/etc. data) — no query logic or business rules
 * live here, only classes for static or server-rendered markup to hook
 * into.
 *
 * All variants build on the existing `.card` base (background, border,
 * radius, shadow, hover-lift) from components/cards.css rather than
 * redefining it, plus a handful of shared sub-parts (avatar, meta row,
 * stat figure, status dot) reused across several card types to keep
 * this file DRY as the type count grows.
 * -----------------------------------------------------------------------
 */

/* ============ Shared sub-parts (used by several card types) ============ */

.entity-avatar {
  border-radius: var(--sf-radius-full);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--sf-indigo-50);
}
.entity-avatar--sm { width: 28px; height: 28px; }
.entity-avatar--md { width: 44px; height: 44px; }
.entity-avatar--lg { width: 72px; height: 72px; }

.entity-meta-row {
  display: flex;
  align-items: center;
  gap: var(--sf-space-4);
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-400);
  flex-wrap: wrap;
}
.entity-meta-row__item { display: inline-flex; align-items: center; gap: var(--sf-space-1); }

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  background: var(--sf-slate-400);
}
.status-dot--green { background: var(--sf-green); }
.status-dot--amber { background: var(--sf-amber); }
.status-dot--red { background: var(--sf-red); }
.status-dot--indigo { background: var(--sf-indigo); }

/* ============ Course card ============ */
/* Grid card for catalog listings. Optional .course-card--enrolled shows
   a progress footer instead of a price footer (see progress-card below
   for the dashboard "continue learning" variant, which is a denser row
   layout rather than a grid card). */

.course-card { padding: 0; overflow: hidden; }
.course-card__media { position: relative; aspect-ratio: 16 / 9; background: var(--sf-indigo-50); overflow: hidden; }
.course-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--sf-duration-slow) var(--sf-ease); }
.course-card:hover .course-card__media img { transform: scale(1.04); }

.course-card__level {
  position: absolute;
  top: var(--sf-space-3);
  left: var(--sf-space-3);
}

.course-card__body { padding: var(--sf-space-5); }
.course-card__title { font-size: var(--sf-text-lg); margin-bottom: var(--sf-space-2); }

.course-card__instructor {
  display: flex;
  align-items: center;
  gap: var(--sf-space-2);
  margin-top: var(--sf-space-4);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-600);
}

.course-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sf-space-4);
  padding-top: var(--sf-space-4);
  border-top: 1px solid var(--sf-border);
}
.course-card__price { font-family: var(--sf-font-mono); font-weight: var(--sf-weight-semibold); color: var(--sf-ink); }
.course-card__price--free { color: var(--sf-green); }

/* ============ Instructor card ============ */

.instructor-card { text-align: center; }
.instructor-card .entity-avatar { margin-inline: auto; margin-bottom: var(--sf-space-4); }
.instructor-card__name { font-size: var(--sf-text-lg); margin-bottom: var(--sf-space-1); }
.instructor-card__title {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-indigo);
  margin-bottom: var(--sf-space-3);
}
.instructor-card__bio { font-size: var(--sf-text-sm); color: var(--sf-slate-600); margin-bottom: var(--sf-space-4); }

.instructor-card__stats {
  display: flex;
  justify-content: center;
  gap: var(--sf-space-6);
  padding-top: var(--sf-space-4);
  border-top: 1px solid var(--sf-border);
}
.instructor-card__stat-value { display: block; font-family: var(--sf-font-mono); font-weight: var(--sf-weight-semibold); color: var(--sf-ink); }
.instructor-card__stat-label { font-size: var(--sf-text-xs); color: var(--sf-slate-400); }

/* ============ Category / track card ============ */
/* Generalized version of the .track-card pattern used on the front
   page (assets/css/front-page.css) — same icon language, reusable
   anywhere a taxonomy needs a card (catalog filters, archive grids). */

.category-card {
  display: flex;
  align-items: center;
  gap: var(--sf-space-4);
}
.category-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--sf-radius-md);
  background: var(--sf-indigo-50);
  color: var(--sf-indigo);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--sf-font-mono);
  font-weight: var(--sf-weight-semibold);
  flex-shrink: 0;
}
.category-card__count {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-400);
}

/* ============ Pricing card ============ */

.pricing-card { text-align: center; position: relative; }
.pricing-card--featured {
  border-color: var(--sf-indigo);
  box-shadow: var(--sf-shadow-lg);
}
.pricing-card__badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
}
.pricing-card__price {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-4xl);
  font-weight: var(--sf-weight-semibold);
  color: var(--sf-ink);
  margin: var(--sf-space-4) 0 var(--sf-space-1);
}
.pricing-card__period { font-size: var(--sf-text-sm); color: var(--sf-slate-400); }
.pricing-card__features {
  list-style: none;
  padding: 0;
  margin: var(--sf-space-6) 0;
  text-align: left;
}
.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--sf-space-2);
  padding: var(--sf-space-2) 0;
  font-size: var(--sf-text-sm);
  color: var(--sf-slate-600);
}
.pricing-card__features li::before {
  content: "";
  width: 16px; height: 16px;
  margin-top: 3px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--sf-green-100);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%231e9e6c' stroke-width='3'%3E%3Cpath d='M5 12l4 4 10-10'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 10px;
}

/* ============ Testimonial card ============ */

.testimonial-card { position: relative; }
.testimonial-card__quote-mark {
  font-family: var(--sf-font-display);
  font-size: 3rem;
  line-height: 1;
  color: var(--sf-indigo-100);
  display: block;
  margin-bottom: var(--sf-space-2);
}
.testimonial-card__quote { font-size: var(--sf-text-base); color: var(--sf-slate-900); margin-bottom: var(--sf-space-5); }
.testimonial-card__author { display: flex; align-items: center; gap: var(--sf-space-3); }
.testimonial-card__author-name { font-weight: var(--sf-weight-semibold); font-size: var(--sf-text-sm); }
.testimonial-card__author-role { font-size: var(--sf-text-xs); color: var(--sf-slate-400); }

/* ============ Statistics card ============ */

.stat-card { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--sf-space-4); }
.stat-card__figure { font-family: var(--sf-font-mono); font-size: var(--sf-text-3xl); font-weight: var(--sf-weight-semibold); color: var(--sf-ink); line-height: 1; }
.stat-card__label { font-size: var(--sf-text-xs); color: var(--sf-slate-400); margin-top: var(--sf-space-2); }
.stat-card__trend {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  padding: 0.25rem 0.5rem;
  border-radius: var(--sf-radius-sm);
  white-space: nowrap;
}
.stat-card__trend--up { background: var(--sf-green-100); color: var(--sf-green); }
.stat-card__trend--down { background: var(--sf-red-100); color: var(--sf-red); }
.stat-card__icon {
  width: 40px; height: 40px;
  border-radius: var(--sf-radius-md);
  background: var(--sf-indigo-50);
  color: var(--sf-indigo);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* ============ Dashboard card (generic panel) ============ */

.dashboard-card { padding: 0; }
.dashboard-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-space-4);
  padding: var(--sf-space-5) var(--sf-space-6);
  border-bottom: 1px solid var(--sf-border);
}
.dashboard-card__title { font-size: var(--sf-text-base); font-weight: var(--sf-weight-semibold); margin: 0; }
.dashboard-card__action { font-size: var(--sf-text-xs); font-family: var(--sf-font-mono); }
.dashboard-card__body { padding: var(--sf-space-6); }
.dashboard-card__body > * + * { margin-top: var(--sf-space-4); }
.dashboard-card__footer {
  padding: var(--sf-space-4) var(--sf-space-6);
  border-top: 1px solid var(--sf-border);
  text-align: center;
}

/* ============ Progress card (dashboard "continue learning" row) ============ */

.progress-card {
  display: flex;
  align-items: center;
  gap: var(--sf-space-4);
}
.progress-card__thumb {
  width: 72px; height: 72px;
  border-radius: var(--sf-radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--sf-indigo-50);
}
.progress-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.progress-card__body { flex: 1; min-width: 0; }
.progress-card__title {
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-weight-semibold);
  margin-bottom: var(--sf-space-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.progress-card__action { flex-shrink: 0; }

@media (max-width: 479px) {
  .progress-card { flex-wrap: wrap; }
  .progress-card__action { width: 100%; }
}

/* ============ Lesson card (curriculum list row) ============ */

.lesson-card {
  display: flex;
  align-items: center;
  gap: var(--sf-space-4);
  padding: var(--sf-space-4) var(--sf-space-5);
}
.lesson-card__index {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-400);
  width: 1.5em;
  flex-shrink: 0;
}
.lesson-card__icon {
  width: 32px; height: 32px;
  border-radius: var(--sf-radius-sm);
  background: var(--sf-indigo-50);
  color: var(--sf-indigo);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.lesson-card__body { flex: 1; min-width: 0; }
.lesson-card__title { font-size: var(--sf-text-sm); font-weight: var(--sf-weight-medium); }
.lesson-card__duration { font-family: var(--sf-font-mono); font-size: var(--sf-text-xs); color: var(--sf-slate-400); flex-shrink: 0; }

.lesson-card--locked { opacity: 0.55; }
.lesson-card--current { background: var(--sf-indigo-50); border-radius: var(--sf-radius-md); }
.lesson-card--complete .lesson-card__icon { background: var(--sf-green-100); color: var(--sf-green); }

/* ============ Quiz card ============ */

.quiz-card__header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--sf-space-3); }
.quiz-card__title { font-size: var(--sf-text-lg); margin-bottom: var(--sf-space-1); }

/* ============ Assignment card ============ */

.assignment-card__header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--sf-space-3); }
.assignment-card__due {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-400);
}
.assignment-card__due--overdue { color: var(--sf-red); }

/* ============ Certificate card ============ */
/* Deliberately more decorative — a double-border "document" treatment
   with the ink/amber palette so it reads as an artifact worth keeping,
   not just another list item. */

.certificate-card {
  position: relative;
  border: 1px solid var(--sf-border);
  padding: var(--sf-space-8) var(--sf-space-6);
  text-align: center;
}
.certificate-card::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--sf-amber-100);
  border-radius: calc(var(--sf-radius-lg) - 4px);
  pointer-events: none;
}
.certificate-card__seal {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--sf-amber);
  color: var(--sf-ink);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--sf-space-4);
  font-family: var(--sf-font-mono);
  font-weight: var(--sf-weight-semibold);
}
.certificate-card__title { font-size: var(--sf-text-lg); margin-bottom: var(--sf-space-1); }
.certificate-card__meta {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-400);
  margin-bottom: var(--sf-space-5);
}
.certificate-card__actions {
  position: relative;
  display: flex;
  justify-content: center;
  gap: var(--sf-space-3);
}

/* ============ Notification card (list row) ============ */

.notification-card {
  display: flex;
  gap: var(--sf-space-3);
  align-items: flex-start;
  padding: var(--sf-space-4) var(--sf-space-5);
  border-radius: var(--sf-radius-md);
  border-left: 3px solid var(--sf-border-strong);
  transition: background var(--sf-duration-fast) var(--sf-ease);
}
.notification-card:hover { background: var(--sf-indigo-50); }
.notification-card--unread { border-left-color: var(--sf-indigo); background: var(--sf-indigo-50); }
.notification-card--unread .notification-card__message { font-weight: var(--sf-weight-medium); }

.notification-card__icon {
  width: 32px; height: 32px;
  border-radius: var(--sf-radius-full);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.notification-card__body { flex: 1; min-width: 0; }
.notification-card__message { font-size: var(--sf-text-sm); color: var(--sf-slate-900); }
.notification-card__time {
  font-family: var(--sf-font-mono);
  font-size: var(--sf-text-xs);
  color: var(--sf-slate-400);
  margin-top: var(--sf-space-1);
  display: block;
}