/* ============================================================
   EVA v2 — refonte UI minimale
   2 colonnes : Cerveau d'EVA (gauche) · Chat (droite)
   Mode switcher en topbar avec couleurs distinctes.
   ============================================================ */

:root {
  --mode-learning:    #f59e0b;
  --mode-consultation: #06b6d4;
  --mode-personal:    #ec4899;
  --mode-business:    #8b5cf6;
  --mode-auto:        #64748b;

  --brain-bg:        rgba(255,255,255,0.02);
  --brain-border:    rgba(255,255,255,0.08);
  --brain-hover:     rgba(255,255,255,0.05);
}

html[data-theme="light"] {
  --brain-bg:        rgba(0,0,0,0.02);
  --brain-border:    rgba(0,0,0,0.08);
  --brain-hover:     rgba(0,0,0,0.04);
}

/* ─────────── Topbar v2 ─────────── */
.eva-v2 .topbar.v2 {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
}
.mode-switcher {
  display: flex;
  gap: 4px;
  background: var(--brain-bg);
  border: 1px solid var(--brain-border);
  border-radius: 10px;
  padding: 4px;
  justify-self: center;
}
.mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 7px;
  color: inherit;
  font: 500 13px Inter, sans-serif;
  cursor: pointer;
  opacity: 0.65;
  transition: all .15s ease;
}
.mode-btn:hover { opacity: 1; background: var(--brain-hover); }
.mode-btn.active {
  opacity: 1;
  background: var(--mode-color, var(--mode-auto));
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.mode-btn[data-mode="learning"]     { --mode-color: var(--mode-learning); }
.mode-btn[data-mode="consultation"] { --mode-color: var(--mode-consultation); }
.mode-btn[data-mode="personal"]     { --mode-color: var(--mode-personal); }
.mode-btn[data-mode="business"]     { --mode-color: var(--mode-business); }
.mode-btn[data-mode="auto"]         { --mode-color: var(--mode-auto); }

/* ─────────── Grid v2 ─────────── */
.eva-v2 .grid-v2 {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 16px;
  padding: 16px;
  height: calc(100vh - 64px);
  overflow: hidden;
}
@media (max-width: 900px) {
  .eva-v2 .grid-v2 {
    grid-template-columns: 1fr;
    height: auto;
  }
  .mode-switcher .mode-btn span { display: none; }
}

/* ─────────── Brain column ─────────── */
.brain-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--brain-bg);
  border: 1px solid var(--brain-border);
  border-radius: 14px;
  padding: 14px;
  overflow: hidden;
  min-height: 0;
}
.brain-head { display: flex; flex-direction: column; gap: 10px; }
.brain-head h2 {
  margin: 0;
  font: 700 14px Inter, sans-serif;
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.85;
}
.brain-search {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--brain-border);
  background: rgba(0,0,0,0.15);
  color: inherit;
  border-radius: 8px;
  font: 400 13px Inter, sans-serif;
}
html[data-theme="light"] .brain-search { background: rgba(255,255,255,0.6); }
.brain-search:focus { outline: 1px solid var(--mode-consultation); }

.brain-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  flex: 1;
  margin: 0 -4px;
  padding: 0 4px;
}

.brain-section {
  border: 1px solid var(--brain-border);
  border-radius: 10px;
  overflow: hidden;
  background: rgba(0,0,0,0.1);
}
html[data-theme="light"] .brain-section { background: rgba(255,255,255,0.4); }

.brain-section > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font: 600 13px Inter, sans-serif;
  user-select: none;
  transition: background .12s ease;
}
.brain-section > summary::-webkit-details-marker { display: none; }
.brain-section > summary:hover { background: var(--brain-hover); }
.brain-section > summary .bs-title { flex: 1; }
.brain-section > summary .bs-count {
  font: 500 11px JetBrains Mono, monospace;
  padding: 2px 7px;
  background: var(--brain-hover);
  border-radius: 10px;
  opacity: 0.8;
}
.brain-section > summary .chev {
  font-size: 11px;
  opacity: 0.5;
  transition: transform .2s ease;
}
.brain-section[open] > summary .chev { transform: rotate(180deg); }

.brain-section-body {
  padding: 4px 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12.5px;
}
.brain-section-body .empty-state.mini {
  padding: 8px;
  display: flex;
  gap: 6px;
  opacity: 0.5;
  font-size: 12px;
}

/* Row item (item de section : un projet, un savoir…) */
.brain-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background .1s ease;
}
.brain-row:hover { background: var(--brain-hover); }
.brain-row .br-icon { width: 14px; opacity: 0.6; font-size: 11px; }
.brain-row .br-label { flex: 1; font-weight: 500; }
.brain-row .br-meta { font: 400 11px JetBrains Mono, monospace; opacity: 0.55; }
.brain-row .br-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--mode-auto); }
.brain-row .br-dot.green  { background: #22c55e; }
.brain-row .br-dot.orange { background: #f59e0b; }
.brain-row .br-dot.grey   { background: #94a3b8; }

/* Sub-group (catégories de savoir, sous-projets) */
.brain-subgroup {
  margin: 4px 0 4px 12px;
  border-left: 1px solid var(--brain-border);
  padding-left: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ─────────── Chat column v2 ─────────── */
.eva-v2 .chat-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--brain-bg);
  border: 1px solid var(--brain-border);
  border-radius: 14px;
  padding: 14px;
  min-height: 0;
  overflow: hidden;
}

.chat-mode-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--mode-color, var(--mode-auto));
  color: #fff;
  border-radius: 8px;
  font: 500 12px Inter, sans-serif;
  opacity: 0.92;
}
.chat-mode-indicator strong { font-weight: 700; }
body[data-current-mode="learning"]     .chat-mode-indicator { --mode-color: var(--mode-learning); }
body[data-current-mode="consultation"] .chat-mode-indicator { --mode-color: var(--mode-consultation); }
body[data-current-mode="personal"]     .chat-mode-indicator { --mode-color: var(--mode-personal); }
body[data-current-mode="business"]     .chat-mode-indicator { --mode-color: var(--mode-business); }
body[data-current-mode="auto"]         .chat-mode-indicator { --mode-color: var(--mode-auto); }

.eva-v2 .chat-feed {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 4px;
}

.eva-v2 .chat-input-wrap { margin-top: 0; }

/* Bubble mode badge */
.bubble.user .bubble-mode-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--mode-auto);
  color: #fff;
  opacity: 0.85;
}
.bubble.user[data-mode="learning"]     .bubble-mode-badge { background: var(--mode-learning); }
.bubble.user[data-mode="consultation"] .bubble-mode-badge { background: var(--mode-consultation); }
.bubble.user[data-mode="personal"]     .bubble-mode-badge { background: var(--mode-personal); }
.bubble.user[data-mode="business"]     .bubble-mode-badge { background: var(--mode-business); }

/* Agents */
.agent-row { gap: 6px; }
.agent-talk-btn {
  background: var(--mode-business);
  border: none;
  color: #fff;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity .12s;
}
.agent-talk-btn:hover { opacity: 1; }
.agent-caps {
  font: 400 11px JetBrains Mono, monospace;
  padding: 0 8px 6px 32px;
  opacity: 0.5;
  font-style: italic;
}

/* Désactivation de l'ancienne grid 3-colonnes quand v2 actif */
.eva-v2 .grid { display: none; }