/* ═══════════════════════════════════════════════════════════════
   APP BODY / GRID — Glass Cards
═══════════════════════════════════════════════════════════════ */
.app-body {
  flex: 1;
  max-width: 1280px; margin: 0 auto; width: 100%;
  padding: 0 0 80px;
}

.view { animation: slideUp .4s cubic-bezier(0.16, 1, 0.3, 1); }

@keyframes viewEnter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* Loading */
.loading-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 16px;
  padding: 80px 20px;
  color: var(--cream-dim);
  font-size: 14px;
}
.spinner-ring {
  width: 40px; height: 40px;
  border: 3px solid rgba(52, 211, 153, 0.15);
  border-top-color: var(--emerald, #34D399);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.load-error-icon { font-size: 32px; color: #EF4444; }
.load-error-link { color: var(--emerald, #34D399); }

/* ── Category hero ── */
.cat-hero {
  display: flex; align-items: center; gap: 16px;
  padding: 24px 16px 14px;
}
.cat-hero-icon { font-size: 36px; line-height: 1; }
.cat-hero h2 {
  font-family: var(--font-heading);
  font-size: 24px; font-weight: 700;
  color: var(--cream);
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--cream) 0%, var(--gold-light, #D4B85C) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cat-hero p { font-size: 13px; color: var(--cream-dim); margin-top: 3px; }

/* ── Trainer Grid ── */
.trainer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 16px 14px 0;
}

.trainer-card {
  background: rgba(42, 48, 80, 0.55);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid rgba(245, 240, 232, 0.06);
  border-radius: var(--r-md);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease;
  position: relative;
}
.trainer-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(52, 211, 153, 0.06);
  border-color: rgba(198, 164, 78, 0.15);
}
.trainer-card:active { transform: translateY(-2px) scale(1); }

.trainer-card-banner {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  overflow: hidden;
  background: linear-gradient(135deg, #2A3050, #353D60);
}
.trainer-card-banner img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(0.16, 1, 0.3, 1);
}
.trainer-card:hover .trainer-card-banner img { transform: scale(1.06); }
.trainer-card-banner-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 32px;
}
.trainer-card-vid-badge {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  color: var(--cream);
  font-size: 10px; font-weight: 600;
  padding: 4px 8px;
  border-radius: var(--r-full);
  display: flex; align-items: center; gap: 4px;
  border: 1px solid rgba(245, 240, 232, 0.1);
}

.trainer-card-body { padding: 12px 14px 14px; }
.trainer-card-category {
  font-size: 10px; font-weight: 700; letter-spacing: 1px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.trainer-card-name {
  font-family: var(--font-heading);
  font-size: 14px; font-weight: 600;
  color: var(--cream);
  line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.trainer-card-progress {
  height: 3px;
  background: rgba(245, 240, 232, 0.08);
  border-radius: 2px;
  margin-top: 10px;
  overflow: hidden;
}
.trainer-card-progress-bar {
  height: 100%;
  background: var(--gradient-primary, linear-gradient(135deg, #34D399, #6EE7B7));
  border-radius: 2px;
  transition: width .5s ease;
}
.trainer-card-watched {
  font-size: 10px; color: var(--emerald, #34D399); font-weight: 600;
  margin-top: 4px;
  letter-spacing: 0.2px;
}