/* ============================================================
   TWD Event Programme – Frontend CSS  v2
   Design moderne, épuré, responsive
   ============================================================ */

.twd-ep-programme {
  --twd-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --twd-primary: #4F46E5;
  --twd-primary-rgb: 79, 70, 229;
  --twd-white: #ffffff;
  --twd-bg: #F8F9FC;
  --twd-surface: #ffffff;
  --twd-border: #E8EAF0;
  --twd-text-main: #0F1117;
  --twd-text-muted: #6B7280;
  --twd-text-light: #9CA3AF;
  --twd-radius-sm: 8px;
  --twd-radius: 14px;
  --twd-radius-lg: 20px;
  --twd-shadow-sm: 0 1px 4px rgba(0, 0, 0, .06);
  --twd-shadow: 0 4px 16px rgba(0, 0, 0, .08);
  --twd-shadow-lg: 0 12px 40px rgba(0, 0, 0, .12);
  --session-color: var(--twd-primary);

  font-family: var(--twd-font);
  color: var(--twd-text-main);
  line-height: 1.6;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

.twd-ep-programme *,
.twd-ep-programme *::before,
.twd-ep-programme *::after {
  box-sizing: inherit;
}

/* ── Header ───────────────────────────────────────────────── */
.twd-ep-programme__header {
  margin-bottom: 48px;
}

.twd-ep-programme__title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--twd-text-main);
  margin: 0 0 8px;
  line-height: 1.15;
}

.twd-ep-programme__subtitle {
  font-size: 17px;
  color: var(--twd-text-muted);
  margin: 0 0 20px;
  font-weight: 400;
}

.twd-ep-programme__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.twd-ep-programme__date,
.twd-ep-programme__location {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--twd-text-muted);
  background: var(--twd-bg);
  border: 1px solid var(--twd-border);
  border-radius: 100px;
  padding: 5px 14px 5px 10px;
}

.twd-ep-programme__date svg,
.twd-ep-programme__location svg {
  color: var(--twd-primary);
  flex-shrink: 0;
}

/* ── Timeline ─────────────────────────────────────────────── */
.twd-ep-timeline {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
}

/* Ligne verticale */
.twd-ep-timeline::before {
  content: '';
  position: absolute;
  left: 78px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--twd-border) 8%, var(--twd-border) 92%, transparent);
  z-index: 0;
}

/* ── Session ──────────────────────────────────────────────── */
.twd-ep-session {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 24px;
  align-items: flex-start;
  padding: 8px 0;
  position: relative;
}

/* Colonne temps */
.twd-ep-session__time {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  padding-top: 18px;
  position: relative;
  z-index: 1;
}

/* Pastille sur la timeline */
.twd-ep-session__time::after {
  content: '';
  position: absolute;
  right: -30px;
  top: 24px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--session-color);
  box-shadow: 0 0 0 3px rgba(var(--twd-primary-rgb), .15);
  z-index: 2;
}

.twd-ep-session__time-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--twd-text-muted);
  white-space: nowrap;
  line-height: 1.3;
  text-align: right;
}

/* Séparation heure de début / fin */
.twd-ep-session__time-badge span {
  display: block;
  font-weight: 400;
  font-size: 10px;
  opacity: .7;
}

/* ── Carte session ────────────────────────────────────────── */
.twd-ep-session__content {
  background: var(--twd-surface);
  border: 1px solid var(--twd-border);
  border-radius: var(--twd-radius);
  box-shadow: var(--twd-shadow-sm);
  overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease;
  position: relative;
}

.twd-ep-session__content:hover {
  box-shadow: var(--twd-shadow);
  transform: translateY(-2px);
}

/* Barre colorée latérale */
.twd-ep-session__color-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--session-color);
  border-radius: 4px 0 0 4px;
}

.twd-ep-session__header {
  padding: 16px 18px 14px 22px;
}

.twd-ep-session__top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 8px;
}

/* Badge type */
.twd-ep-session__type-badge {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .7px;
  padding: 3px 10px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--session-color) 12%, transparent);
  color: var(--session-color);
  border: 1px solid color-mix(in srgb, var(--session-color) 25%, transparent);
}

/* Fallback for browsers without color-mix */
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .twd-ep-session__type-badge {
    background: rgba(79, 70, 229, .1);
    color: var(--session-color);
    border-color: rgba(79, 70, 229, .2);
  }
}

/* Badge lieu */
.twd-ep-session__location {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--twd-text-light);
  font-weight: 500;
}

.twd-ep-session__title {
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 700;
  color: var(--twd-text-main);
  margin: 0 0 4px;
  line-height: 1.3;
  letter-spacing: -.2px;
}

.twd-ep-session__description {
  font-size: 13px;
  color: var(--twd-text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ── Sessions type "pause / repas" – style allégé ─────────── */
.twd-ep-session--pause .twd-ep-session__content,
.twd-ep-session--repas .twd-ep-session__content {
  background: var(--twd-bg);
  border-style: dashed;
  box-shadow: none;
}

.twd-ep-session--pause .twd-ep-session__content:hover,
.twd-ep-session--repas .twd-ep-session__content:hover {
  transform: none;
  box-shadow: none;
}

.twd-ep-session--pause .twd-ep-session__title,
.twd-ep-session--repas .twd-ep-session__title {
  font-weight: 500;
  color: var(--twd-text-muted);
}

/* ── Intervenants (session sans sous-sessions) ────────────── */
.twd-ep-session__intervenants {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 18px 16px 22px;
  border-top: 1px solid var(--twd-border);
  margin-top: 2px;
  padding-top: 12px;
}

/* ── Sous-sessions : grille adaptive ─────────────────────── */
.twd-ep-sub-sessions {
  border-top: 1px solid var(--twd-border);
  padding: 14px 16px 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  transition: grid-template-columns .3s ease;
}

/* 1 seule sous-session visible → pleine largeur */
.twd-ep-sub-sessions[data-visible="1"] {
  grid-template-columns: 1fr;
}

/* 2 sous-sessions visibles → 2 colonnes égales */
.twd-ep-sub-sessions[data-visible="2"] {
  grid-template-columns: 1fr 1fr;
}

/* 3 sous-sessions visibles → 3 colonnes */
.twd-ep-sub-sessions[data-visible="3"] {
  grid-template-columns: 1fr 1fr 1fr;
}

/* 0 visible (toutes filtrées) → message vide */
.twd-ep-sub-sessions[data-visible="0"]::after {
  content: attr(data-empty-label);
  display: block;
  grid-column: 1 / -1;
  text-align: center;
  color: var(--twd-text-light);
  font-style: italic;
  font-size: 13px;
  padding: 12px 0;
}

.twd-ep-sub-session {
  background: var(--twd-bg);
  border: 1px solid var(--twd-border);
  border-radius: var(--twd-radius-sm);
  padding: 13px 15px;
  transition: background .2s, border-color .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
}

/* Micro-barre colorée en haut de la sous-session */
.twd-ep-sub-session::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--session-color);
  opacity: .5;
}

.twd-ep-sub-session:hover {
  background: var(--twd-surface);
  border-color: color-mix(in srgb, var(--session-color) 30%, var(--twd-border));
  box-shadow: var(--twd-shadow-sm);
}

.twd-ep-sub-session__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 5px;
}

.twd-ep-sub-session__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--twd-text-main);
  margin: 0;
  line-height: 1.3;
  flex: 1;
}

/* .twd-ep-sub-session__room est maintenant dans room-bar (au-dessus du titre) */

.twd-ep-sub-session__description {
  font-size: 12px;
  color: var(--twd-text-muted);
  margin: 0 0 10px;
  line-height: 1.55;
}

.twd-ep-sub-session__intervenants {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

/* ── Intervenant chip ─────────────────────────────────────── */
.twd-ep-intervenant-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--twd-bg);
  border: 1px solid var(--twd-border);
  border-radius: 100px;
  padding: 4px 12px 4px 4px;
  text-decoration: none;
  color: inherit;
  transition: background .18s, border-color .18s, box-shadow .18s, transform .18s;
  max-width: 100%;
}

.twd-ep-intervenant-chip:hover {
  background: var(--twd-surface);
  border-color: var(--twd-primary);
  box-shadow: 0 2px 8px rgba(var(--twd-primary-rgb), .15);
  transform: translateY(-1px);
  text-decoration: none;
  color: inherit;
}

.twd-ep-intervenant-chip__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--twd-border);
}

.twd-ep-intervenant-chip__avatar--initials {
  background: linear-gradient(135deg, var(--twd-primary), #7C3AED);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
}

.twd-ep-intervenant-chip__info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.3;
}

.twd-ep-intervenant-chip__name {
  font-size: 12px;
  font-weight: 700;
  color: var(--twd-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.twd-ep-intervenant-chip__role {
  font-size: 10px;
  color: var(--twd-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.twd-ep-intervenant-chip__company {
  font-size: 10px;
  font-weight: 600;
  color: var(--twd-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Empty ────────────────────────────────────────────────── */
.twd-ep-programme__empty {
  text-align: center;
  color: var(--twd-text-light);
  font-style: italic;
  padding: 60px 0;
  font-size: 15px;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 720px) {
  .twd-ep-timeline::before {
    display: none;
  }

  .twd-ep-session {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 6px 0;
  }

  .twd-ep-session__time {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: 0 0 6px 0;
    gap: 8px;
  }

  .twd-ep-session__time::after {
    display: none;
  }

  .twd-ep-session__time-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: color-mix(in srgb, var(--session-color) 10%, transparent);
    color: var(--session-color);
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 700;
  }

  @supports not (background: color-mix(in srgb, red 50%, blue)) {
    .twd-ep-session__time-badge {
      background: rgba(79, 70, 229, .1);
    }
  }

  .twd-ep-session__time-badge span {
    display: inline;
  }

  .twd-ep-sub-sessions,
  .twd-ep-sub-sessions[data-visible="2"],
  .twd-ep-sub-sessions[data-visible="3"],
  .twd-ep-sub-sessions[data-visible="4"] {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .twd-ep-programme__title {
    font-size: 22px;
  }

  .twd-ep-session__header {
    padding: 14px 14px 12px 18px;
  }

  .twd-ep-session__intervenants {
    padding-left: 18px;
    padding-right: 14px;
  }

  .twd-ep-intervenant-chip {
    width: 100%;
  }
}

/* ── Animations au scroll ─────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
  .twd-ep-session__content {
    will-change: opacity, transform;
  }
}



/* ── Room bar (au-dessus du titre) ───────────────────────── */
.twd-ep-sub-session__room-bar {
  margin-bottom: 7px;
}

.twd-ep-sub-session__room {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--twd-text-muted);
  background: var(--twd-border);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ── Filter bar (cases à cocher) ─────────────────────────── */
.twd-ep-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  margin-bottom: 32px;
  padding: 13px 18px;
  background: var(--twd-bg);
  border: 1px solid var(--twd-border);
  border-radius: var(--twd-radius);
}

.twd-ep-filter-bar__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--twd-text-light);
  margin-right: 4px;
  flex-shrink: 0;
}

/* Label checkbox */
.twd-ep-filter-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px 5px 8px;
  border-radius: 100px;
  border: 1.5px solid var(--twd-border);
  background: var(--twd-surface);
  color: var(--twd-text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .18s, color .18s, background .18s, box-shadow .18s;
  user-select: none;
  font-family: var(--twd-font);
}

.twd-ep-filter-check:hover {
  border-color: var(--track-color, var(--twd-primary));
  color: var(--track-color, var(--twd-primary));
}

/* Masquer la vraie checkbox */
.twd-ep-filter-check input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* Box custom */
.twd-ep-filter-check__box {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1.5px solid var(--twd-border);
  background: var(--twd-surface);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s ease;
  position: relative;
}

/* État coché */
.twd-ep-filter-check input[type="checkbox"]:checked~.twd-ep-filter-check__box {
  background: var(--track-color, var(--twd-primary));
  border-color: var(--track-color, var(--twd-primary));
}

.twd-ep-filter-check input[type="checkbox"]:checked~.twd-ep-filter-check__box::after {
  content: '';
  width: 9px;
  height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(1px, -1px);
  display: block;
}

/* Quand coché, le label s'active */
.twd-ep-filter-check:has(input:checked) {
  border-color: var(--track-color, var(--twd-primary));
  color: var(--track-color, var(--twd-primary));
  background: color-mix(in srgb, var(--track-color, var(--twd-primary)) 8%, transparent);
}

@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .twd-ep-filter-check:has(input:checked) {
    background: rgba(79, 70, 229, .06);
  }
}

/* Dot couleur */
.twd-ep-filter-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--track-color, var(--twd-primary));
  flex-shrink: 0;
}

/* ── Track badges (dans sous-sessions) ───────────────────── */
.twd-ep-sub-session__tracks {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 8px;
}

.twd-ep-track-badge {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 2px 9px;
  border-radius: 100px;
  background: var(--track-color, var(--twd-primary));
  color: #fff;
}

/* ── Filtrage : masquer les sous-sessions + sessions vides ─ */
.twd-ep-sub-session[data-hidden="1"] {
  display: none;
}

.twd-ep-session[data-all-hidden="1"] {
  opacity: .35;
  pointer-events: none;
}

@media (prefers-reduced-motion: no-preference) {
  .twd-ep-sub-session {
    transition: opacity .2s ease;
  }
}