.grid-day {
  display: grid;
  grid-auto-rows: auto;
  gap: 0.5em;
}

@media (max-width: 900px) {
  .grid-day {
    display: flex;
    flex-direction: column;
  }
}

.grid-day > div.session {
  position: relative;
  border: 1px solid var(--divider-color);
  border-radius: var(--radius);
  padding: 0.5rem;

  /* Ombre à zéro au repos : elle existe pour la transition mais n'est pas visible */
  box-shadow: 0 0 0 0 var(--dark-primary-color);

  /* Transition sur tout, en steps pour le rendu pixel saccadé */
  transition:
    transform var(--transition-pixel),
    box-shadow var(--transition-pixel),
    border-color var(--transition-pixel),
    background var(--transition-pixel);
}

.grid-day > div.session:hover {
  border-color: var(--default-primary-color);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-pixel);
  z-index: 2; /* important : passe au-dessus des voisines */
  outline: none;
}

.session-actions-grid {
  position: absolute;
  top: 0.3rem;
  right: 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.1rem;
}

.session-fav {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--secondary-text-color);
  opacity: 0.55;
  transition:
    opacity 0.2s,
    color 0.2s;
}

.session-fav:hover,
.session-fav:focus {
  opacity: 1;
  color: var(--default-primary-color);
}

.session-fav svg {
  width: 1.2rem;
  height: 1.2rem;
  fill: currentcolor;
  pointer-events: none;
}

.session-feedback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  color: var(--secondary-text-color);
  opacity: 0.55;
  text-decoration: none;
  transition:
    opacity 0.2s,
    color 0.2s;
}

.session-feedback:hover,
.session-feedback:focus {
  opacity: 1;
  color: var(--default-primary-color);
  text-decoration: none;
}

.session-feedback svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: currentcolor;
}

.session-fav .star-on {
  display: none;
}

.session-fav[aria-pressed="true"] {
  opacity: 1;
  color: var(--default-primary-color);
}

.session-fav[aria-pressed="true"] .star-off {
  display: none;
}

.session-fav[aria-pressed="true"] .star-on {
  display: inline;
}

.session .title {
  padding-right: 4.5rem;
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 400;
}

.grid-day > div.session:hover .title {
  color: var(--default-primary-color);
}

.session.pause {
  background-color: var(--gray-lighter-background-color);
}

.date {
  /* Pour que l'ancre ne soit pas masquée par le header */
  scroll-margin-top: 64px;
  border-bottom: 2px solid var(--default-primary-color);
  padding-bottom: 0.3rem;
  margin-top: 1.5rem;
}

.time {
  color: var(--secondary-text-color);
  text-align: right;
}

@media (max-width: 900px) {
  .time {
    text-align: left;
  }
}

.hours {
  display: inline-block;
  font-weight: 500;
  font-size: 2rem;
  width: 2rem;
  text-align: right;
}

.minutes {
  display: inline-block;
  font-weight: 400;
  width: 1rem;
}

.track {
  color: var(--secondary-text-color);
  font-weight: 400;
  text-align: center;
}

@media (max-width: 900px) {
  .track {
    display: none;
  }
}

.sponsor {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 2px solid var(--primary-background-color);
  border-radius: var(--radius);
  padding: 0.5rem;
  min-height: calc(3em + 1rem + 4px);
  background-color: var(--gray-lighter-background-color);

  /* Ombre à zéro au repos : elle existe pour la transition mais n'est pas visible */
  box-shadow: 0 0 0 0 var(--dark-primary-color);

  /* Transition sur tout, en steps pour le rendu pixel saccadé */
  transition:
    transform var(--transition-pixel),
    box-shadow var(--transition-pixel),
    border-color var(--transition-pixel),
    background var(--transition-pixel);
}

.sponsor:hover {
  border-color: var(--default-primary-color);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-pixel);
  z-index: 2; /* important : passe au-dessus des voisines */
  outline: none;
}

.sponsor > .logo {
  height: 3em;
  width: auto;
  max-width: 100%;
  vertical-align: middle;
}

.session .abstract {
  margin-bottom: 1rem;
}

.session .extra {
  color: var(--secondary-text-color);
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  text-align: right;
  text-wrap: balance;
}

.session .extra .session-track {
  display: none;
}

@media (max-width: 900px) {
  .session .extra .session-track {
    display: inline;
  }
}

.session .speakers {
  margin-top: 1rem;
}

.session .speaker-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.session .speaker {
  margin-top: 0.2rem;
}

.session .speaker .speaker-name {
  vertical-align: middle;
}

.session .speaker .avatar-frame {
  vertical-align: middle;
}

/* Mini version : un seul bloc transparent par coin (pas de halftone)
   pour ne pas charger les cartes du schedule. */
.session .speaker .avatar {
  width: 2rem;
  height: 2rem;
  vertical-align: middle;
  mask-image: url("../images/avatar-mask-mini.svg");
}

.draft-warning {
  padding: 1rem;
  border: 2px solid var(--default-primary-color);
  text-align: center;
  font-size: 1.5rem;
  border-radius: var(--radius);
  background-color: var(--light-primary-color);
  color: var(--gray-light-background-color);
  font-weight: normal;
}

.schedule-help {
  position: fixed;
  top: calc(1rem + 64px);
  right: 1rem;
  z-index: 1100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: start;
  width: calc(100% - 2rem);
  max-width: 24rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--default-primary-color);
  border-radius: var(--radius);
  background: var(--default-background-color);
  box-shadow: var(--shadow-pixel);
  font-size: 0.875rem;
  line-height: 1.35;
}

@media (max-width: 600px) {
  .schedule-help {
    top: calc(0.5rem + 64px);
    right: 0.5rem;
    width: calc(100% - 3rem);
    max-width: none;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
    line-height: 1.3;
  }

  .schedule-help-icon svg {
    width: 1rem;
    height: 1rem;
  }

  .schedule-help-dismiss {
    width: 1.6rem;
    height: 1.6rem;
    font-size: 1.25rem;
  }
}

.schedule-help[hidden] {
  display: none;
}

.schedule-help-title,
.schedule-help-content a {
  font-weight: 400;
}

.schedule-help-icon {
  display: inline-flex;
  align-items: center;
  height: 1.4em;
}

.schedule-help-icon svg {
  width: 1.2rem;
  height: 1.2rem;
  fill: var(--default-primary-color);
}

.schedule-help-content a {
  color: var(--default-primary-color);
  text-decoration: underline;
}

.schedule-help-dismiss {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--secondary-text-color);
  font-family: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius);
  transition:
    background-color 0.2s,
    color 0.2s;
}

.schedule-help-dismiss:hover,
.schedule-help-dismiss:focus {
  background: rgb(0 0 0 / 6%);
  color: var(--primary-text-color);
}

.session[hidden] {
  display: none;
}

.schedule-filters-collapse {
  margin-bottom: 1rem;
  border: 1px solid var(--divider-color);
  border-radius: var(--radius);
  background: var(--card-background-color, transparent);
}

.schedule-filters-collapse > summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  user-select: none;
}

.schedule-filters-collapse > summary svg {
  width: 1em;
  height: 1em;
}

.schedule-filters-collapse > summary::after {
  content: "▾";
  margin-left: auto;
  color: var(--secondary-text-color);
  transition: transform 0.15s;
}

.schedule-filters-collapse[open] > summary::after {
  transform: rotate(180deg);
}

.schedule-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: flex-end;
  padding: 0 0.75rem 0.75rem;
}

.schedule-filters .filter-group {
  border: 0;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}

.schedule-filters legend,
.schedule-filters label {
  font-weight: 600;
  margin-right: 0.5rem;
}

.filter-chip {
  border: 1px solid var(--divider-color);
  background: transparent;
  border-radius: var(--radius);
  padding: 0.25rem 0.75rem;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition:
    background-color 0.2s,
    color 0.2s,
    border-color 0.2s;
}

.filter-chip:hover,
.filter-chip:focus {
  border-color: var(--default-primary-color);
}

.filter-chip[aria-pressed="true"] {
  background: var(--default-primary-color);
  color: var(--primary-inv-text-color);
  border-color: var(--default-primary-color);
}

.filter-search input {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--divider-color);
  border-radius: var(--radius);
  font: inherit;
  min-width: 14rem;
}

.filter-reset {
  border: 0;
  background: transparent;
  text-decoration: underline;
  cursor: pointer;
  color: var(--secondary-text-color);
  font: inherit;
}

.filter-reset:hover,
.filter-reset:focus {
  color: var(--primary-text-color);
}

.filter-empty {
  flex-basis: 100%;
  margin: 0;
  color: var(--secondary-text-color);
}

/* Différer le rendu des jours hors viewport : chaque .day contient une
   grille de 30+ sessions complexes. Le navigateur peut sauter leur
   layout/paint tant qu'ils ne croisent pas la viewport, sans pour autant
   les retirer du DOM (filterByDateStart côté schedule-filters reste
   capable de matcher toutes les sessions). */
.schedule-page .day {
  content-visibility: auto;
  contain-intrinsic-size: auto 1200px;
}