/* Block detail panel. Shared by the scheduler, Active study and today's
   plan, so it uses the app's tokens rather than its own colours. */

#ipBlockPanel {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

#ipBlockPanel[hidden] { display: none !important; }

.ipbd-scrim {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.ipbd-sheet {
  position: relative;
  width: min(560px, 100%);
  max-height: 86vh;
  overflow-y: auto;
  background: var(--bg-primary, #fff);
  color: var(--text-primary, #0f172a);
  border: 1px solid var(--border, rgba(15, 23, 42, 0.12));
  border-bottom: none;
  border-radius: 20px 20px 0 0;
  padding: 22px 22px 28px;
  box-shadow: 0 -8px 40px rgba(15, 23, 42, 0.18);
  animation: ipbd-rise 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

/* On a phone the sheet is the page. On a laptop a centred dialog reads
   better than a sheet stuck to the bottom edge. */
@media (min-width: 720px) {
  #ipBlockPanel { align-items: center; }
  .ipbd-sheet {
    border-radius: 20px;
    border-bottom: 1px solid var(--border, rgba(15, 23, 42, 0.12));
  }
}

@keyframes ipbd-rise {
  from { transform: translateY(14px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .ipbd-sheet { animation: none; }
}

.ipbd-x {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted, #64748b);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}
.ipbd-x:hover { background: var(--bg-secondary, rgba(15, 23, 42, 0.06)); }

.ipbd-title {
  margin: 0 36px 8px 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ipbd-meta { display: flex; flex-wrap: wrap; gap: 6px; }

.ipbd-pill {
  font-size: 0.72rem;
  color: var(--text-muted, #64748b);
  border: 1px solid var(--border, rgba(15, 23, 42, 0.12));
  border-radius: 99px;
  padding: 2px 9px;
}

.ipbd-notes p {
  margin: 12px 0 0;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-secondary, #475569);
}

.ipbd-section[hidden] { display: none !important; }

.ipbd-h3 {
  margin: 20px 0 8px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted, #64748b);
}

.ipbd-muted {
  font-size: 0.82rem;
  color: var(--text-muted, #64748b);
  line-height: 1.5;
  margin: 0;
}

.ipbd-res {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border, rgba(15, 23, 42, 0.12));
  border-radius: 12px;
  padding: 11px 13px;
  margin-bottom: 8px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.ipbd-res:hover {
  border-color: var(--accent, #6366f1);
  transform: translateY(-1px);
}

/* The student's own material -- a teacher's link, or something they
   linked themselves -- is better than anything we picked, so it reads as
   theirs rather than as another suggestion. */
.ipbd-res--mine {
  border-color: color-mix(in srgb, var(--accent, #6366f1) 45%, transparent);
  background: color-mix(in srgb, var(--accent, #6366f1) 6%, transparent);
}

.ipbd-res-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.ipbd-res-title { font-size: 0.87rem; font-weight: 600; }

.ipbd-res-tag {
  font-size: 0.68rem;
  color: var(--text-muted, #64748b);
  flex-shrink: 0;
}

.ipbd-why {
  font-size: 0.76rem;
  color: var(--text-muted, #64748b);
  line-height: 1.45;
  margin-top: 3px;
}

/* Blocks that open something should look like it. */
[data-ip-block] { cursor: pointer; }