/* Statistiche per materia */
.compact-select {
  width: auto;
  font-size: 13px;
  padding: 6px 10px;
}
.subject-stats {
  margin: 8px 0 40px;
}
.stats-head,
.stats-row {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(0, 1.4fr) minmax(0, 1.4fr);
  gap: 8px 24px;
  align-items: center;
}
.stats-head {
  font-size: 12px;
  color: var(--muted);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}
.stats-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.stats-row b {
  overflow-wrap: anywhere;
}
.stats-row span {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.answer-bar {
  display: flex;
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
  background: var(--raised);
}
.answer-bar i {
  display: block;
}
.a-easy {
  background: var(--green);
}
.a-medium {
  background: color-mix(in srgb, var(--green) 35%, var(--raised));
}
.a-hard {
  background: var(--warm);
}

/* Calendario dell'anno */
.heatmap-wrap {
  overflow-x: auto;
  padding-bottom: 6px;
}
.heatmap {
  --cell: 12px;
  width: max-content;
}
.heatmap-months {
  display: grid;
  grid-template-columns: repeat(53, var(--cell));
  gap: 3px;
  font-size: 11px;
  color: var(--muted);
  height: 16px;
}
.heatmap-months span {
  white-space: nowrap;
}
.heatmap-grid {
  display: grid;
  grid-template-rows: repeat(7, var(--cell));
  grid-auto-flow: column;
  grid-auto-columns: var(--cell);
  gap: 3px;
}
.heatmap i,
.heatmap-legend i {
  display: block;
  width: var(--cell, 12px);
  height: var(--cell, 12px);
  border-radius: 2px;
}
.l0 {
  background: var(--raised);
}
.l1 {
  background: color-mix(in srgb, var(--green) 25%, var(--raised));
}
.l2 {
  background: color-mix(in srgb, var(--green) 50%, var(--raised));
}
.l3 {
  background: color-mix(in srgb, var(--green) 75%, var(--raised));
}
.l4 {
  background: var(--green);
}
.heatmap .future {
  background: transparent;
}
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 40px;
}

/* Domande da un testo */
.bulk-cards {
  margin-top: 16px;
}
.bulk-cards summary {
  font-weight: 600;
  color: var(--green);
}

/* Modalità esame */
.exam-mode {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  max-width: 850px;
}
.exam-mode .feature-form .primary {
  margin-top: 18px;
}
.exam-run {
  --m: 52px;
  margin: 20px 0;
  padding: 26px 28px 28px calc(var(--m) + 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--white);
  background-image:
    linear-gradient(var(--margin), var(--margin)),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 1px 100%, 22px 22px, 22px 22px;
  background-position: var(--m) 0, -1px -1px, -1px -1px;
  background-repeat: no-repeat, repeat, repeat;
}
.exam-run textarea {
  margin-bottom: 16px;
}
.exam-run #exam-stop {
  display: block;
  margin-top: 14px;
}
.exam-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}
.exam-clock {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--ink);
}
.exam-clock.is-late {
  color: var(--warm);
}
.exam-review li,
.exam-history li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.exam-review span {
  overflow-wrap: anywhere;
}
.exam-review .is-right b {
  color: var(--green);
}
.exam-review .is-wrong b {
  color: var(--warm);
}
.exam-history {
  margin-top: 8px;
}
.exam-history b {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Note per argomento */
.topic-note {
  margin: 2px 0 10px 26px;
  font-size: 13px;
}
.topic-note summary {
  color: var(--muted);
}
.topic-note[open] summary,
.topic-note summary:hover {
  color: var(--green);
}
.topic-note textarea {
  margin-top: 8px;
  font-size: 14px;
}
.topic-note .hint {
  margin: 4px 0 0;
}

@media (max-width: 800px) {
  .stats-head {
    display: none;
  }
  .stats-row {
    grid-template-columns: 1fr;
  }
  .exam-run {
    --m: 26px;
    padding: 22px 18px 24px calc(var(--m) + 16px);
  }
}

/* Gruppo di studio */
.goals-group {
  margin-bottom: 44px;
  max-width: 900px;
}
.group-card {
  padding: 18px 0 20px;
  border-top: 1px solid var(--line);
}
.group-card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}
.group-goal .secondary {
  white-space: nowrap;
}
.group-code {
  font-size: 14px;
  margin: 6px 0 12px;
}
.group-code b {
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}
.group-code .text-button {
  padding: 0 0 0 8px;
}
.group-members li {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(80px, 1.2fr) auto;
  gap: 14px;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.group-members li.is-me span {
  font-weight: 700;
}
.group-members small {
  color: var(--muted);
  font-size: 12px;
}
.group-members b {
  font-weight: 500;
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.group-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: 12px;
}
.group-goal label {
  margin-top: 0;
}
.group-goal input {
  max-width: 140px;
}
.group-actions .text-button {
  padding: 0;
}
.group-forms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 18px;
}
.group-forms h3,
.exam-mode h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}
@media (max-width: 800px) {
  .group-forms {
    grid-template-columns: 1fr;
  }
  .group-members li {
    grid-template-columns: 1fr auto;
  }
  .group-members .goal-bar {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

/* Chi sta studiando adesso */
.live-group {
  padding: 0 0 22px;
  border-bottom: 1px solid var(--line);
}
.live-group[hidden] {
  display: none;
}
.live-group h2 {
  font: 700 16px var(--font);
  margin: 0 0 10px;
}
.live-group li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 14px;
}
.live-group li span {
  color: var(--muted);
  font-size: 13px;
}
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2f9e5a;
  margin-right: 6px;
  vertical-align: middle;
  animation: live 2s ease-in-out infinite;
}
.live-text {
  color: #2f9e5a !important;
}
@keyframes live {
  50% {
    opacity: 0.35;
  }
}
@media (prefers-reduced-motion: reduce) {
  .live-dot {
    animation: none;
  }
}

/* Lobby e profili */
.lobby-me {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  max-width: 900px;
  margin-bottom: 28px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 14px;
}
.lobby-me p {
  margin: 0;
  flex: 1 1 360px;
}
.lobby-me.is-out {
  border-left-color: var(--field);
}
.lobby-me .text-button {
  padding: 0;
}
.lobby-list {
  max-width: 900px;
}
.lobby-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 4px 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.lobby-list li.empty {
  display: block;
}
.lobby-list a {
  font-weight: 700;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.lobby-list span {
  color: var(--muted);
}
.lobby-list .is-studying span {
  color: #2f9e5a;
}
.lobby-list b {
  font-weight: 500;
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.live-dot.is-idle {
  background: var(--field);
  animation: none;
}
#lobby-profile {
  max-width: 900px;
}
.profile-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
}
.profile-head h2 {
  font-size: 26px;
  margin: 0;
}
.profile-strip {
  flex-wrap: wrap;
  gap: 18px 40px;
  margin-bottom: 24px;
}
#lobby-profile h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 26px 0 8px;
}
#lobby-profile .list-toolbar h3 {
  margin: 26px 0 8px;
}
.profile-subjects li {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) minmax(0, 1.6fr) auto;
  gap: 14px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.profile-subjects span {
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.profile-sessions li {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  gap: 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.profile-sessions span:nth-child(2) {
  overflow-wrap: anywhere;
}
#lobby-profile .achievement-list .achievement h3 {
  margin: 3px 0 2px;
  font-size: 15px;
}
@media (max-width: 640px) {
  .lobby-list li {
    grid-template-columns: auto minmax(0, 1fr);
  }
  .lobby-list span,
  .lobby-list b {
    grid-column: 2;
  }
  .profile-subjects li,
  .profile-sessions li {
    grid-template-columns: 1fr auto;
  }
  .profile-subjects .goal-bar {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .profile-sessions span:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

/* Lobby private: stato dei membri */
.lobby-section {
  max-width: 900px;
  margin-bottom: 44px;
}
.lobby-section > .hint {
  margin-top: -6px;
}
.group-members li {
  grid-template-columns: minmax(120px, 1fr) auto auto;
}
.group-members li > span:nth-child(2) {
  font-size: 13px;
}
.live-dot.is-online {
  animation: none;
}
.live-dot.is-offline {
  background: transparent;
  border: 1.5px solid var(--field);
  animation: none;
}
.online-text {
  color: #2f9e5a;
}
@media (max-width: 800px) {
  .group-members li {
    grid-template-columns: 1fr auto;
  }
  .group-members li > b {
    grid-column: 1 / -1;
  }
}