/* ============================================================
   COGESTIONE — ISCRIZIONE ATTIVITÀ (STUDENT VIEW)
   ============================================================ */

/* ── Page subtitle ── */
.page-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.4;
}

/* ============================================================
   WAITING ROOM
   ============================================================ */

.queue-waiting-room {
  border: 1px solid var(--color-accent);
  background: var(--color-bg-elevated);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  display: grid;
  gap: var(--space-sm);
}

.queue-waiting-room__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.queue-waiting-room__header h2 {
  margin: 0;
  font-size: 0.95rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.queue-waiting-room__message {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.queue-waiting-room__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-sm);
}

.queue-waiting-room__item {
  border: 1px solid var(--color-border);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg);
  display: grid;
  gap: 2px;
}

.queue-waiting-room__item .label {
  color: var(--color-text-subtle);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.queue-waiting-room__item strong {
  font-size: 0.88rem;
  color: var(--color-text);
}

.queue-active-banner {
  border: 1px solid var(--color-accent);
  background: rgba(0, 120, 255, 0.08);
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  font-size: 0.82rem;
}

@media (max-width: 720px) {
  .queue-waiting-room__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   LE MIE ISCRIZIONI — BANNER
   ============================================================ */

.my-enrollments-section {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-accent);
  border-radius: 0;
  margin-bottom: var(--space-lg);
  overflow: hidden;
}

.my-enrollments-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  user-select: none;
  gap: var(--space-sm);
}

.my-enrollments-header:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.my-enrollments-title {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
}

.enrollment-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 10px;
  line-height: 1;
}

.chevron-icon {
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out);
  color: var(--color-text-muted);
}

.my-enrollments-section.collapsed .chevron-icon {
  transform: rotate(180deg);
}

.my-enrollments-body {
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
  border-top: 1px solid var(--color-border);
}

.my-enrollments-section.collapsed .my-enrollments-body {
  max-height: 0 !important;
  border-top-color: transparent;
}

.enrolled-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-md);
}

.enrolled-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  transition: border-color var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
  max-width: 280px;
}

.enrolled-item:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-elevated);
}

.enrolled-item-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.enrolled-item-info {
  min-width: 0;
  flex: 1;
}

.enrolled-item-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.enrolled-item-meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================
   FILTER TOGGLE — trigger row + collapsible panel
   ============================================================ */

/* ── Trigger row: always visible ── */
.filter-trigger-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.btn-filter-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.btn-filter-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.btn-filter-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.btn-filter-toggle[aria-expanded="true"] {
  border-color: var(--color-accent);
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

/* Chevron rotates when open */
.filter-toggle-chevron {
  transition: transform var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
}

.btn-filter-toggle[aria-expanded="true"] .filter-toggle-chevron {
  transform: rotate(180deg);
}

/* Badge con contatore filtri attivi */
.filter-active-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  line-height: 1;
  border-radius: 9px;
}

.filter-results-count {
  font-size: 0.775rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ── Collapsible panel ── */
.filter-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--duration-normal) var(--ease-out),
              margin-bottom var(--duration-normal) var(--ease-out);
  margin-bottom: 0;
}

/* When hidden attribute is removed, keep transition working via JS */
.filter-panel-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
}

/* ── Top row: search + reset ── */
.filter-top {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.filter-search-wrap {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
}

.filter-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.filter-search {
  width: 100%;
  height: 34px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: 0 30px 0 32px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text);
  transition: border-color var(--duration-normal) var(--ease-out);
}

.filter-search:focus {
  outline: none;
  border-color: var(--color-accent);
}

.filter-search::placeholder {
  color: var(--color-text-subtle);
}

/* Clear button inside search field */
.filter-search-clear {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 0;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.filter-search-clear:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.filter-search-clear:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

/* Reset button (inline, minimal) */
.btn-filter-reset {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 26px;
  padding: 0 8px;
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.75rem;
  cursor: pointer;
  white-space: nowrap;
  margin-left: auto;
  transition: border-color var(--duration-fast), color var(--duration-fast);
}

.btn-filter-reset:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.btn-filter-reset:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

/* ── Filter group row: label + chips ── */
.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.filter-group-label {
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  white-space: nowrap;
  min-width: 52px;
  flex-shrink: 0;
  user-select: none;
}

.filter-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

/* ── Individual chip ── */
.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
  user-select: none;
}

.filter-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

.filter-chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.filter-chip.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
  font-weight: 500;
}

.filter-chip.is-active:hover {
  background: var(--color-accent);
  color: #fff;
  opacity: 0.85;
}

/* Subscript time range inside fascia chips */
.filter-chip-sub {
  font-size: 0.7rem;
  opacity: 0.75;
  margin-left: 2px;
}

.filter-chip.is-active .filter-chip-sub {
  opacity: 0.85;
}

/* ============================================================
   ACTIVITY GRID
   ============================================================ */

.activity-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-sm);
}

@media (max-width: 1400px) {
  .activity-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1100px) {
  .activity-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  .activity-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .activity-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   ACTIVITY CARD
   ============================================================ */

.activity-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
}

.activity-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.activity-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.activity-card.is-enrolled {
  border-color: var(--color-accent);
}

.activity-card.is-not-eligible {
  opacity: 0.55;
}

/* Card thumbnail */
.card-thumb {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  display: block;
  background: var(--color-bg);
  flex-shrink: 0;
}

.card-thumb-placeholder {
  width: 100%;
  aspect-ratio: 16 / 7;
  background:
    radial-gradient(circle at top right, rgba(255, 92, 0, 0.12), transparent 38%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)),
    var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.card-thumb-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 6px,
    rgba(255, 255, 255, 0.025) 6px,
    rgba(255, 255, 255, 0.025) 12px
  );
}

/* Enrolled ribbon */
.enrolled-ribbon {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 1;
}

.not-eligible-ribbon {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(0, 0, 0, 0.65);
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  z-index: 1;
}

/* Card body */
.card-body {
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

@media (max-width: 1100px) {
  .card-body {
    padding: var(--space-md);
    gap: 8px;
  }
}

/* Category badges */
.card-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  min-height: 18px;
}

.badge-cat {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 2px;
  white-space: nowrap;
}

.badge-cat-formativa {
  background: rgba(59, 130, 246, 0.1);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-cat-creativa {
  background: rgba(255, 92, 0, 0.1);
  color: var(--color-accent);
  border: 1px solid rgba(255, 92, 0, 0.2);
}

.badge-cat-guest {
  background: rgba(234, 179, 8, 0.08);
  color: #eab308;
  border: 1px solid rgba(234, 179, 8, 0.18);
}

.badge-cat-altro {
  background: rgba(136, 136, 136, 0.08);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* Card title */
.card-title {
  font-family: var(--font-display);
  font-size: clamp(0.88rem, 1.15vw, 1.05rem);
  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--color-text);
  margin: 0;
}

@media (max-width: 1100px) {
  .card-title {
    font-size: clamp(1rem, 1.8vw, 1.25rem);
  }
}

@media (max-width: 480px) {
  .card-title {
    font-size: clamp(1.15rem, 4vw, 1.45rem);
  }
}

/* Card meta */
.card-meta-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--color-text-muted);
}

@media (max-width: 1100px) {
  .card-meta-row {
    font-size: 0.875rem;
  }
}

.card-meta-row svg,
.card-meta-row [data-lucide] {
  flex-shrink: 0;
}

/* Card slots */
.card-slots {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.card-slot-availability {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--color-border);
}

.card-slot-availability-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-slot-availability-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.card-slot-availability-value {
  font-size: 0.78rem;
  font-weight: 600;
  text-align: right;
}

.card-slot-availability-value.is-open {
  color: #22c55e;
}

.card-slot-availability-value.is-full {
  color: var(--color-accent);
}

.card-slot-availability-value.is-closed {
  color: var(--color-text-subtle);
}

/* Chip per-fascia con stato colorato */
.card-slot-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--color-border);
}

.card-slot-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
}

.card-slot-chip--open {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.25);
}

.card-slot-chip--full {
  background: rgba(239, 68, 68, 0.08);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.22);
}

.card-slot-chip--closed {
  background: rgba(136, 136, 136, 0.07);
  color: var(--color-text-subtle);
  border-color: var(--color-border);
}

.slot-chip-label {
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

.slot-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.slot-pill.is-enrolled-slot {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(255, 92, 0, 0.06);
}

.slot-pill-day-lun { border-color: rgba(59, 130, 246, 0.3); color: #60a5fa; }
.slot-pill-day-mar { border-color: rgba(168, 85, 247, 0.3); color: #a855f7; }
.slot-pill-day-mer { border-color: rgba(20, 184, 166, 0.3); color: #14b8a6; }

/* Card footer */
.card-footer {
  padding: 8px var(--space-sm);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  background: var(--color-bg);
}

@media (max-width: 1100px) {
  .card-footer {
    padding: 10px var(--space-md);
    gap: var(--space-md);
    flex-wrap: nowrap;
  }
}

/* Seats pill — counter compatto occupati/totali nel footer card */
.card-seats-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  border-radius: 2px;
  white-space: nowrap;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.card-seats-pill.is-open {
  border-color: rgba(34, 197, 94, 0.25);
  background: rgba(34, 197, 94, 0.07);
  color: #22c55e;
}

.card-seats-pill.is-full {
  border-color: rgba(255, 92, 0, 0.25);
  background: rgba(255, 92, 0, 0.07);
  color: var(--color-accent);
}

.card-seats-pill.is-unknown {
  opacity: 0.55;
}

/* Status pill replaces old dot */
.card-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 2px;
  white-space: nowrap;
}

.card-status-pill::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-open {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.status-open::before { background: #22c55e; }

.status-full {
  background: rgba(255, 92, 0, 0.1);
  color: var(--color-accent);
  border: 1px solid rgba(255, 92, 0, 0.2);
}

.status-full::before { background: var(--color-accent); }

.status-closed {
  background: rgba(136, 136, 136, 0.08);
  color: var(--color-text-subtle);
  border: 1px solid var(--color-border);
}

.status-closed::before { background: var(--color-text-subtle); }

/* Seats count */
.card-seats {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-left: none;
  padding-left: 0;
  margin-left: 0;
  white-space: nowrap;
}

/* Small action button in card */
.btn-xs {
  height: 32px;
  padding: 0 10px;
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.card-footer .btn-xs {
  flex-shrink: 0;
}

.card-footer-note {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(136, 136, 136, 0.16);
  background: rgba(136, 136, 136, 0.08);
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */

.activity-empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--color-text-muted);
  border: 1px dashed var(--color-border);
}

.empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.empty-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.empty-desc {
  font-size: 0.875rem;
  margin: 0 0 var(--space-md);
}

/* ============================================================
   SKELETON CARDS
   ============================================================ */

@keyframes skeleton-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton-bg {
  background: linear-gradient(
    90deg,
    var(--color-bg-elevated) 25%,
    rgba(255, 255, 255, 0.06) 50%,
    var(--color-bg-elevated) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite ease-in-out;
}

.skeleton-card {
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.skeleton-thumb {
  width: 100%;
  aspect-ratio: 16 / 7;
}

.skeleton-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.skeleton-line {
  height: 12px;
  border-radius: 3px;
  display: block;
}

.skeleton-line-lg { height: 18px; width: 70%; }
.skeleton-line-md { height: 12px; width: 55%; }
.skeleton-line-sm { height: 10px; width: 40%; }
.skeleton-pill-sm {
  display: inline-block;
  height: 18px;
  width: 60px;
  border-radius: 2px;
}

/* ============================================================
   DETAIL MODAL
   ============================================================ */

.detail-modal-inner {
  max-height: 90vh;
  overflow-y: auto;
  padding: 0;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Custom scrollbar (desktop) */
.main-content,
.detail-modal-inner {
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent) var(--color-bg-elevated);
}

.main-content::-webkit-scrollbar,
.detail-modal-inner::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.main-content::-webkit-scrollbar-track,
.detail-modal-inner::-webkit-scrollbar-track {
  background: var(--color-bg-elevated);
}

.main-content::-webkit-scrollbar-thumb,
.detail-modal-inner::-webkit-scrollbar-thumb {
  background: rgba(255, 92, 0, 0.75);
  border: 2px solid var(--color-bg-elevated);
  border-radius: 999px;
}

.main-content::-webkit-scrollbar-thumb:hover,
.detail-modal-inner::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

.detail-modal-inner .modal-close {
  position: sticky;
  top: var(--space-sm);
  right: var(--space-sm);
  float: right;
  z-index: 10;
  margin: var(--space-sm) var(--space-sm) 0 auto;
  display: flex;
}

.detail-modal-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Hero image */
.detail-hero {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  display: block;
  background: var(--color-bg);
  flex-shrink: 0;
}

.detail-hero-placeholder {
  width: 100%;
  height: 100px;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  position: relative;
}

.detail-hero-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(255, 255, 255, 0.02) 8px,
    rgba(255, 255, 255, 0.02) 16px
  );
}

.detail-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* Detail header */
.detail-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.detail-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.detail-title {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--color-text);
  margin: 0;
}

.detail-status-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Description */
.detail-description {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.65;
  margin: 0;
  white-space: pre-line;
}

/* Info grid */
.detail-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

@media (max-width: 600px) {
  .detail-info-grid {
    grid-template-columns: 1fr;
  }
}

.detail-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-md);
}

.detail-info-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.detail-info-value {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.45;
}

/* Alert boxes */
.detail-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.06);
  color: #ef4444;
  font-size: 0.875rem;
  line-height: 1.5;
}

.detail-alert-warning {
  border-color: rgba(234, 179, 8, 0.3);
  background: rgba(234, 179, 8, 0.06);
  color: #eab308;
}

.detail-alert-info {
  border-color: rgba(59, 130, 246, 0.25);
  background: rgba(59, 130, 246, 0.06);
  color: #60a5fa;
}

/* Guest speaker card */
.detail-guest {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  border-left: 3px solid #eab308;
}

.detail-guest-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #eab308;
  margin-bottom: var(--space-xs);
}

.detail-guest-photo {
  width: 56px;
  height: 56px;
  object-fit: cover;
  flex-shrink: 0;
  border-radius: 2px;
}

.detail-guest-avatar {
  width: 56px;
  height: 56px;
  background: rgba(234, 179, 8, 0.1);
  color: #eab308;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  flex-shrink: 0;
  border-radius: 2px;
}

.detail-guest-name {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.detail-guest-specialty {
  font-size: 0.75rem;
  color: #eab308;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.detail-guest-description {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-top: 4px;
}

/* Slots section */
.detail-slots-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.detail-slots-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}

.slots-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.slot-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: border-color var(--duration-normal) var(--ease-out);
}

.slot-row.is-enrolled-slot {
  border-color: var(--color-accent);
  border-left: 3px solid var(--color-accent);
}

.slot-row.slot-disabled {
  opacity: 0.5;
}

.slot-row-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.slot-row-date {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.slot-row-meta {
  font-size: 0.775rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.slot-row-enrolled-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Capacity info line */
.slot-capacity-info {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.725rem;
  color: var(--color-text-subtle);
  margin-top: 4px;
}

.slot-row-action {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}

@media (max-width: 560px) {
  .slot-row {
    grid-template-columns: 1fr;
  }

  .slot-row-action {
    align-items: stretch;
    flex-direction: row;
    justify-content: flex-end;
  }
}

/* Enrollment CTA */
.slot-btn-loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ── Allocation label ── */
.allocation-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.allocation-highlight {
  font-weight: 700;
  color: var(--color-accent);
}

/* ── Targets label ── */
.target-classes-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

/* ============================================================
   MOBILE FILTER
   ============================================================ */

@media (max-width: 720px) {
  .filter-panel-inner {
    padding: var(--space-sm);
  }

  .filter-top {
    flex-wrap: wrap;
  }

  .filter-search-wrap {
    flex: 1 1 100%;
  }

  .filter-chip-list {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
  }

  .filter-chip {
    flex-shrink: 0;
  }

  .card-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .detail-body {
    padding: var(--space-md);
  }

  .card-slot-availability-label,
  .card-slot-availability-value {
    font-size: 0.75rem;
  }

  .detail-title {
    font-size: 1.4rem;
  }
}


/* ============================================================
   ENHANCED MOBILE RESPONSIVE  Touch targets & fluid sizing
   ============================================================ */

/*  Supplemental touch-target fixes at 720px  */
@media (max-width: 720px) {

  /* 44px touch targets for filter inputs */
  .filter-search {
    height: 44px;
    min-height: 44px;
  }

  /* Toggle button touch target */
  .btn-filter-toggle {
    height: 40px;
    min-height: 40px;
  }

  /* 44px touch targets for chips */
  .filter-chip {
    height: 36px;
    min-height: 36px;
    padding: 0 12px;
    font-size: 0.825rem;
  }

  /* Enroll/action buttons  44px touch target */
  .btn-xs {
    min-height: 44px;
    height: auto;
    padding: 0 var(--space-sm);
  }

  /* Enrollment items stack full-width + 44px touch target */
  .enrolled-list {
    flex-direction: column;
  }

  .enrolled-item {
    max-width: 100%;
    min-height: 44px;
    width: 100%;
    align-items: center;
  }

  /* Header accordion tap target */
  .my-enrollments-header {
    min-height: 44px;
  }

  /* Card footer action button fills width on mobile */
  .card-footer .btn-xs {
    width: 100%;
    justify-content: center;
  }
}

/*  Small mobile  max 480px  */
@media (max-width: 480px) {

  /* Fluid detail modal title */
  .detail-title {
    font-size: clamp(1.1rem, 5vw, 1.25rem);
  }

  /* Tighter modal body padding */
  .detail-body {
    padding: var(--space-sm) var(--space-md);
  }

  /* Reduce hero image height on tiny screens */
  .detail-hero {
    max-height: 160px;
  }

  .detail-hero-placeholder {
    height: 80px;
  }

  /* Compact slot rows */
  .slot-row {
    padding: var(--space-sm);
  }

  /* Compact filter panel */
  .filter-panel-inner {
    padding: var(--space-xs) var(--space-sm);
    gap: 8px;
  }

  .filter-group-label {
    min-width: 44px;
    font-size: 0.63rem;
  }

  /* Reduce empty state padding */
  .activity-empty-state {
    padding: var(--space-lg) var(--space-md);
  }

  /* Card body tighter padding */
  .card-body {
    padding: var(--space-sm);
  }

  /* Card footer tighter padding */
  .card-footer {
    padding: var(--space-xs) var(--space-sm);
  }
}

/*  Modal: use dvh so mobile browser chrome doesn't clip content  */
@media (max-width: 768px) {
  .detail-modal-inner {
    max-height: 92svh; /* svh: stable viewport height, excludes browser UI */
    max-height: 92dvh; /* dvh: dynamic viewport height, modern browsers */
  }
}

/* ============================================
   BLOCCO PARZIALE PER CLASSE — BANNER AVVISO
   ============================================ */

.class-block-notice {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.28);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.class-block-notice strong {
  font-weight: 700;
}

/* Card slot chip: blocked day state */
.card-slot-chip--blocked {
  background: rgba(239, 68, 68, 0.07);
  color: rgba(220, 38, 38, 0.75);
  border: 1px solid rgba(239, 68, 68, 0.18);
  text-decoration: line-through;
  opacity: 0.75;
}