*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sky:        #EAF4FD;
  --sky-mid:    #C9E4F7;
  --sky-deep:   #A3CDED;
  --blue:       #4A90C4;
  --blue-dark:  #2E6E9E;
  --blue-light: #F0F8FF;
  --teal:       #5BB8A8;
  --teal-light: #E6F5F2;
  --amber:      #F5A623;
  --amber-bg:   #FEF6E4;
  --red:        #E05252;
  --red-bg:     #FDF0F0;
  --green:      #52A87C;
  --green-bg:   #EEF7F2;
  --white:      #FFFFFF;
  --gray-50:    #F8FAFB;
  --gray-100:   #EEF1F4;
  --gray-200:   #DDE3E9;
  --gray-400:   #9AAAB8;
  --gray-600:   #6B7E8F;
  --gray-800:   #3A4A56;
  --text:       #2C3E50;
  --shadow-sm:  0 2px 8px rgba(74,144,196,0.10);
  --shadow-md:  0 4px 20px rgba(74,144,196,0.15);
  --shadow-lg:  0 8px 40px rgba(74,144,196,0.20);
  --radius:     14px;
  --radius-sm:  8px;
}

body {
  font-family: 'Nunito', sans-serif;
  background: linear-gradient(145deg, var(--sky) 0%, #F5FBFF 40%, #EBF6FD 100%);
  min-height: 100vh;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
}

/* ── Header ─────────────────────────────────────────────── */
header {
  width: 100%;
  background: var(--white);
  border-bottom: 1.5px solid var(--sky-mid);
  padding: 0.7rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-circle {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(74,144,196,0.30);
}

.header-info h1 {
  font-family: 'Nunito', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: -0.01em;
}
.header-info p {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 1px;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-badge {
  display: flex; align-items: center; gap: 6px;
  background: var(--green-bg);
  border: 1px solid #B8E5CC;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.73rem;
  color: var(--green);
  font-weight: 600;
}
.status-badge.connecting { background: var(--amber-bg); border-color: #FAD98E; color: var(--amber); }
.status-badge.error { background: var(--red-bg); border-color: #F5BABA; color: var(--red); }
.status-badge.hidden { display: none; }
.dot-live {
  width: 7px; height: 7px; border-radius: 50%; background: currentColor;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:0.4} }

.btn-export {
  display: flex; align-items: center; gap: 7px;
  background: var(--white);
  border: 1.5px solid var(--sky-deep);
  border-radius: var(--radius-sm);
  padding: 0.45rem 1rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue-dark);
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
  transition: background 0.18s, border-color 0.18s, box-shadow 0.18s;
  white-space: nowrap;
}
.btn-export:hover {
  background: var(--sky);
  border-color: var(--blue);
  box-shadow: var(--shadow-sm);
}
.btn-export:active { transform: scale(0.97); }

/* ── Config panel ────────────────────────────────────────── */
.config-panel {
  background: var(--white);
  border: 1.5px solid var(--sky-mid);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  box-shadow: var(--shadow-sm);
}
.config-panel h2 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 0.75rem;
  display: flex; align-items: center; gap: 8px;
}
.config-row {
  display: flex; gap: 10px; align-items: flex-end;
  flex-wrap: wrap;
}
.config-field {
  display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 200px;
}
.config-field label {
  font-size: 0.72rem; font-weight: 600; color: var(--gray-600);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.config-field input {
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.82rem;
  font-family: 'Nunito', sans-serif;
  color: var(--text);
  background: var(--gray-50);
  outline: none;
  transition: border-color 0.2s;
}
.config-field input:focus { border-color: var(--blue); background: var(--white); }
.btn-connect {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.55rem 1.2rem;
  font-size: 0.82rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  box-shadow: 0 3px 10px rgba(74,144,196,0.30);
  white-space: nowrap;
  display: flex; align-items: center; gap: 7px;
}
.btn-connect:hover { opacity: 0.88; }
.btn-connect:active { transform: scale(0.97); }

/* ── Chat container ──────────────────────────────────────── */
.chat-container {
  background: var(--white);
  border: 1.5px solid var(--sky-mid);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 460px;
  overflow: hidden;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  scroll-behavior: smooth;
  background: var(--gray-50);
}
.messages::-webkit-scrollbar { width: 5px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb { background: var(--sky-deep); border-radius: 3px; }

.msg-row { display: flex; gap: 10px; align-items: flex-start; animation: slide-up 0.3s ease; }
@keyframes slide-up { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
.msg-row.user { flex-direction: row-reverse; }

.avatar {
  width: 34px; height: 34px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.avatar.bot {
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  box-shadow: 0 2px 8px rgba(74,144,196,0.25);
}
.avatar.user {
  background: var(--sky-mid);
  color: var(--blue-dark);
  font-weight: 700;
  font-size: 12px;
}

.bubble {
  max-width: 76%;
  border-radius: 14px;
  padding: 0.8rem 1rem;
  font-size: 0.875rem;
  line-height: 1.65;
}
.msg-row.bot .bubble {
  background: var(--white);
  border: 1.5px solid var(--sky-mid);
  color: var(--text);
  border-top-left-radius: 4px;
  box-shadow: var(--shadow-sm);
}
.msg-row.user .bubble {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: var(--white);
  border-top-right-radius: 4px;
  box-shadow: 0 3px 12px rgba(74,144,196,0.30);
}

.sensor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 8px;
  margin-top: 10px;
}
.sensor-card {
  background: var(--sky);
  border: 1px solid var(--sky-deep);
  border-radius: 10px;
  padding: 8px 10px;
  text-align: center;
}
.sensor-card .sc-lbl { font-size: 0.65rem; color: var(--gray-600); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.sensor-card .sc-val { font-size: 1.1rem; font-weight: 700; color: var(--blue-dark); margin-top: 2px; }
.sensor-card .sc-unit { font-size: 0.65rem; color: var(--gray-400); }
.sensor-card.ok { background: var(--green-bg); border-color: #B8E5CC; }
.sensor-card.ok .sc-val { color: var(--green); }
.sensor-card.warn { background: var(--amber-bg); border-color: #FAD98E; }
.sensor-card.warn .sc-val { color: var(--amber); }
.sensor-card.bad { background: var(--red-bg); border-color: #F5BABA; }
.sensor-card.bad .sc-val { color: var(--red); }

.typing-dots { display: flex; gap: 4px; padding: 4px 2px; align-items: center; }
.typing-dots span {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--blue);
  animation: typing 1.3s ease-in-out infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.18s; }
.typing-dots span:nth-child(3) { animation-delay: 0.36s; }
@keyframes typing { 0%,60%,100%{opacity:0.2;transform:scale(0.8)} 30%{opacity:1;transform:scale(1)} }

/* ── Avatar animations ───────────────────────────────────── */

/* Anneau pulsant autour de l'avatar bot */
.avatar.bot {
  position: relative;
}
.avatar.bot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 13px;
  border: 2px solid var(--blue);
  opacity: 0;
  animation: none;
  transition: opacity 0.3s;
}

/* Quand le bot réfléchit : anneau actif + nageoire qui bouge */
.avatar.bot.thinking::after {
  opacity: 0.5;
  animation: avatar-ring 1.4s ease-in-out infinite;
}
.avatar.bot.thinking svg {
  animation: fish-swim 0.7s ease-in-out infinite alternate;
}

@keyframes avatar-ring {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50%       { transform: scale(1.18); opacity: 0.12; }
}
@keyframes fish-swim {
  from { transform: rotate(-8deg) translateY(0px); }
  to   { transform: rotate(8deg)  translateY(-2px); }
}

/* Quand le bot vient de répondre : flash vert rapide */
.avatar.bot.answered {
  animation: avatar-answered 0.6s ease-out;
}
@keyframes avatar-answered {
  0%   { box-shadow: 0 2px 8px rgba(74,144,196,0.25); }
  40%  { box-shadow: 0 0 0 6px rgba(91,184,168,0.35), 0 2px 8px rgba(74,144,196,0.25); }
  100% { box-shadow: 0 2px 8px rgba(74,144,196,0.25); }
}

/* ── Bandeau "AquaBot réfléchit..." ─────────────────────── */
.thinking-bar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 0.55rem 1.25rem;
  background: var(--sky);
  border-top: 1px solid var(--sky-mid);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue-dark);
  animation: thinking-fadein 0.25s ease;
}
.thinking-bar.visible {
  display: flex;
}
@keyframes thinking-fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Onde animée dans le bandeau */
.thinking-wave {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 14px;
}
.thinking-wave span {
  width: 3px;
  border-radius: 2px;
  background: var(--blue);
  animation: wave-bar 1s ease-in-out infinite;
}
.thinking-wave span:nth-child(1) { height: 6px;  animation-delay: 0s; }
.thinking-wave span:nth-child(2) { height: 10px; animation-delay: 0.15s; }
.thinking-wave span:nth-child(3) { height: 14px; animation-delay: 0.30s; }
.thinking-wave span:nth-child(4) { height: 10px; animation-delay: 0.45s; }
.thinking-wave span:nth-child(5) { height: 6px;  animation-delay: 0.60s; }
@keyframes wave-bar {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%       { opacity: 1;   transform: scaleY(1); }
}

/* ── Quick suggestions ───────────────────────────────────── */
.suggestions {
  padding: 0.75rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  border-top: 1px solid var(--gray-100);
  background: var(--white);
}
.suggestion-chip {
  background: var(--sky);
  border: 1.5px solid var(--sky-deep);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--blue-dark);
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
  transition: all 0.18s;
  white-space: nowrap;
}
.suggestion-chip:hover {
  background: var(--sky-mid);
  border-color: var(--blue);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(74,144,196,0.18);
}

/* ── Input bar ───────────────────────────────────────────── */
.input-bar {
  display: flex;
  gap: 10px;
  padding: 0.9rem 1.25rem;
  border-top: 1.5px solid var(--sky-mid);
  background: var(--white);
  align-items: flex-end;
}
textarea#user-input {
  flex: 1;
  border: 1.5px solid var(--gray-200);
  border-radius: 12px;
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
  font-family: 'Nunito', sans-serif;
  color: var(--text);
  background: var(--gray-50);
  resize: none;
  outline: none;
  line-height: 1.5;
  transition: border-color 0.2s, background 0.2s;
  max-height: 120px;
}
textarea#user-input:focus { border-color: var(--blue); background: var(--white); }
textarea#user-input::placeholder { color: var(--gray-400); }

button#send-btn {
  width: 42px; height: 42px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: var(--white);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 3px 10px rgba(74,144,196,0.35);
  transition: opacity 0.2s, transform 0.1s;
  flex-shrink: 0;
}
button#send-btn:hover { opacity: 0.88; }
button#send-btn:active { transform: scale(0.94); }
button#send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Toast notifications ─────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  background: var(--gray-800); color: var(--white);
  border-radius: 10px; padding: 0.65rem 1.2rem;
  font-size: 0.82rem; font-weight: 600;
  z-index: 999;
  animation: toast-in 0.3s ease;
  max-width: 90vw; text-align: center;
  display: flex; align-items: center; gap: 8px;
}
.toast.success { background: var(--green); }
.toast.error { background: var(--red); }
@keyframes toast-in { from{opacity:0;transform:translateX(-50%) translateY(10px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }

/* ── PRINT / PDF styles ──────────────────────────────────── */
#print-report { display: none; }

@media print {
  body > * { display: none !important; }
  #print-report { display: block !important; }

  @page {
    margin: 2cm 2.2cm;
    size: A4;
  }

  #print-report {
    font-family: 'Nunito', sans-serif;
    color: #2C3E50;
    font-size: 10pt;
    line-height: 1.6;
  }

  .pr-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 14pt;
    border-bottom: 2px solid #4A90C4;
    margin-bottom: 18pt;
  }
  .pr-header-left h1 {
    font-size: 16pt;
    font-weight: 700;
    color: #2E6E9E;
    margin-bottom: 3pt;
  }
  .pr-header-left p {
    font-size: 9pt;
    color: #6B7E8F;
  }
  .pr-header-right {
    text-align: right;
    font-size: 8.5pt;
    color: #6B7E8F;
    line-height: 1.8;
  }
  .pr-header-right strong { color: #2C3E50; }

  .pr-section-title {
    font-size: 9pt;
    font-weight: 700;
    color: #4A90C4;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid #C9E4F7;
    padding-bottom: 4pt;
    margin: 18pt 0 10pt;
  }

  .pr-messages { margin-top: 6pt; }
  .pr-msg {
    margin-bottom: 18pt;
    page-break-inside: avoid;
  }
  .pr-msg-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5pt;
  }
  .pr-msg-num {
    font-size: 8pt;
    font-weight: 700;
    color: #5BB8A8;
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }
  .pr-msg-time {
    font-size: 7.5pt;
    color: #9AAAB8;
  }
  .pr-msg-content {
    font-size: 10pt;
    line-height: 1.7;
    color: #2C3E50;
    background: #F8FAFB;
    border-left: 3pt solid #5BB8A8;
    padding: 8pt 12pt;
    border-radius: 0 6pt 6pt 0;
    white-space: pre-wrap;
  }

  .pr-footer {
    margin-top: 24pt;
    padding-top: 10pt;
    border-top: 1px solid #DDE3E9;
    font-size: 8pt;
    color: #9AAAB8;
    display: flex;
    justify-content: space-between;
  }
}

/* Responsive */
@media (max-width: 600px) {
  .main-wrap { padding: 0.75rem 0.5rem 0; }
  header { padding: 0.75rem 1rem; }
  .config-row { flex-direction: column; }
  .btn-export span { display: none; }
}

/* ── Main layout ─────────────────────────────────────────── */
.app-layout {
  width: 100%;
  max-width: 1400px;
  flex: 1;
  display: flex;
  gap: 0;
  padding: 0.8rem 0.75rem 1rem;
  align-items: flex-start;
}

.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--white);
  border: 1.5px solid var(--sky-mid);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  margin-right: 14px;
  max-height: calc(100vh - 100px);
  position: sticky;
  top: 80px;
  overflow: hidden;
}

.sidebar-header {
  padding: 12px 12px 10px;
  border-bottom: 1.5px solid var(--sky-mid);
  background: var(--sky);
}

.sidebar-title {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--blue-dark);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.btn-new-chat {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 10px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.79rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(74,144,196,0.30);
  transition: opacity 0.2s;
}
.btn-new-chat:hover { opacity: 0.88; }

.history-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}
.history-list::-webkit-scrollbar { width: 4px; }
.history-list::-webkit-scrollbar-thumb { background: var(--sky-deep); border-radius: 3px; }

.history-group-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 5px 4px 3px;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: background 0.12s, border-color 0.12s;
  margin-bottom: 2px;
}
.history-item:hover { background: var(--sky); border-color: var(--sky-mid); }
.history-item.active { background: var(--blue-light); border-color: var(--blue); }

.history-item-text { flex: 1; min-width: 0; }
.history-item-title {
  font-size: 0.77rem;
  font-weight: 600;
  color: var(--gray-800);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.history-item-time { font-size: 0.65rem; color: var(--gray-400); margin-top: 1px; }

.history-item-del {
  opacity: 0;
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  font-size: 13px;
  padding: 2px 3px;
  border-radius: 4px;
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
  line-height: 1;
}
.history-item:hover .history-item-del { opacity: 1; }
.history-item-del:hover { color: var(--red); }

.history-empty {
  text-align: center;
  color: var(--gray-400);
  font-size: 0.77rem;
  padding: 20px 10px;
  line-height: 1.6;
}

.main-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.btn-rapport {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1.5px solid var(--sky-mid);
  border-radius: 10px;
  padding: 6px 14px;
  font-size: 0.79rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  color: var(--blue-dark);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.btn-rapport:hover { background: var(--sky); border-color: var(--blue); }
.btn-rapport:disabled { opacity: 0.4; cursor: not-allowed; }

@media (max-width: 700px) {
  .app-layout { flex-direction: column; padding: 0.75rem 0.5rem 1rem; }
  .sidebar { width: 100%; min-width: 0; position: static; margin-right: 0; margin-bottom: 10px; max-height: 160px; }
  .history-list { flex-direction: row; display: flex; overflow-x: auto; overflow-y: hidden; gap: 6px; }
  .history-group-label { display: none; }
  .history-item { min-width: 130px; flex-shrink: 0; } }

/* ═══════════════════════════════════════════════════════════
   AMÉLIORATIONS BULLES DE CHAT + MISE EN PAGE
═══════════════════════════════════════════════════════════ */

/* ── Fond de la zone messages ────────────────────────────── */
.messages {
  background:
    radial-gradient(ellipse at 20% 10%, rgba(74,144,196,0.05) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 90%, rgba(91,184,168,0.05) 0%, transparent 60%),
    var(--gray-50) !important;
}

/* ── Ligne de message : entrée animée ────────────────────── */
.msg-row {
  animation: msg-appear 0.35s cubic-bezier(.22,.68,0,1.2) both !important;
}
@keyframes msg-appear {
  from { opacity: 0; transform: translateY(14px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0)    scale(1);    }
}

/* ── Bulle BOT ───────────────────────────────────────────── */
.msg-row.bot .bubble {
  background: var(--white) !important;
  border: 1.5px solid rgba(74,144,196,0.18) !important;
  border-top-left-radius: 4px !important;
  border-top-right-radius: 16px !important;
  border-bottom-right-radius: 16px !important;
  border-bottom-left-radius: 16px !important;
  box-shadow:
    0 2px 12px rgba(74,144,196,0.10),
    0 1px 3px rgba(0,0,0,0.04) !important;
  padding: 0.95rem 1.15rem !important;
  font-size: 0.875rem !important;
  line-height: 1.72 !important;
  color: var(--text) !important;
  position: relative;
  transition: box-shadow 0.2s;
}
.msg-row.bot .bubble:hover {
  box-shadow:
    0 4px 20px rgba(74,144,196,0.16),
    0 1px 4px rgba(0,0,0,0.06) !important;
}

/* Fine barre de couleur à gauche de la bulle bot */
.msg-row.bot .bubble::before {
  content: '';
  position: absolute;
  left: 0; top: 12px; bottom: 12px;
  width: 3px;
  background: linear-gradient(to bottom, var(--blue), var(--teal));
  border-radius: 0 3px 3px 0;
  opacity: 0.5;
}

/* ── Bulle USER ──────────────────────────────────────────── */
.msg-row.user .bubble {
  background: linear-gradient(135deg, #2E6E9E 0%, #1a5a8a 100%) !important;
  border-top-left-radius: 16px !important;
  border-top-right-radius: 4px !important;
  border-bottom-right-radius: 16px !important;
  border-bottom-left-radius: 16px !important;
  box-shadow:
    0 3px 14px rgba(46,110,158,0.35),
    0 1px 4px rgba(0,0,0,0.08) !important;
  padding: 0.85rem 1.1rem !important;
  font-size: 0.875rem !important;
  line-height: 1.65 !important;
  color: #fff !important;
  letter-spacing: 0.01em;
}

/* ── Avatar bot : taille et arrondi améliorés ─────────────── */
.avatar {
  width: 38px !important;
  height: 38px !important;
  border-radius: 12px !important;
}
.avatar.bot {
  box-shadow: 0 3px 12px rgba(74,144,196,0.30) !important;
  overflow: hidden;
}
.avatar.user {
  background: linear-gradient(135deg, var(--sky-mid) 0%, #b8d8f0 100%) !important;
  box-shadow: 0 2px 8px rgba(74,144,196,0.18) !important;
}

/* ── Horodatage discret sous les bulles ──────────────────── */
.msg-row .bubble-wrap {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-width: 76%;
}
.bubble-time {
  font-size: 0.63rem;
  color: var(--gray-400);
  padding: 0 4px;
  opacity: 0;
  transition: opacity 0.2s;
}
.msg-row:hover .bubble-time { opacity: 1; }
.msg-row.user .bubble-time  { text-align: right; }
.msg-row.bot  .bubble-time  { text-align: left; }

/* ── Suggestions chips — style pill modernisé ────────────── */
.suggestions {
  padding: 0.7rem 1.25rem 0.8rem !important;
  background: linear-gradient(to bottom, var(--white), var(--gray-50)) !important;
  border-top: 1px solid rgba(74,144,196,0.10) !important;
  gap: 6px !important;
}
.suggestion-chip {
  background: var(--white) !important;
  border: 1.5px solid rgba(74,144,196,0.25) !important;
  border-radius: 24px !important;
  padding: 6px 14px !important;
  font-size: 0.75rem !important;
  font-weight: 600 !important;
  color: var(--blue-dark) !important;
  box-shadow: 0 1px 4px rgba(74,144,196,0.08) !important;
  transition: all 0.2s cubic-bezier(.22,.68,0,1.2) !important;
}
.suggestion-chip:hover {
  background: linear-gradient(135deg, var(--sky) 0%, #ddf0ff 100%) !important;
  border-color: var(--blue) !important;
  transform: translateY(-2px) scale(1.03) !important;
  box-shadow: 0 4px 12px rgba(74,144,196,0.22) !important;
}
.suggestion-chip:active {
  transform: translateY(0) scale(0.97) !important;
}

/* ── Input bar ───────────────────────────────────────────── */
.input-bar {
  background: var(--white) !important;
  border-top: 1.5px solid rgba(74,144,196,0.13) !important;
  padding: 0.85rem 1.1rem !important;
  gap: 10px !important;
}
textarea#user-input {
  border-radius: 14px !important;
  border: 1.5px solid rgba(74,144,196,0.20) !important;
  background: var(--gray-50) !important;
  padding: 0.7rem 1.1rem !important;
  font-size: 0.875rem !important;
  line-height: 1.5 !important;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s !important;
}
textarea#user-input:focus {
  border-color: var(--blue) !important;
  background: var(--white) !important;
  box-shadow: 0 0 0 3px rgba(74,144,196,0.12) !important;
  outline: none !important;
}

button#send-btn {
  width: 44px !important;
  height: 44px !important;
  border-radius: 14px !important;
  background: linear-gradient(135deg, var(--blue) 0%, #1a5a8a 100%) !important;
  box-shadow: 0 4px 14px rgba(46,110,158,0.40) !important;
  transition: all 0.2s cubic-bezier(.22,.68,0,1.2) !important;
}
button#send-btn:hover:not(:disabled) {
  transform: translateY(-1px) scale(1.05) !important;
  box-shadow: 0 6px 18px rgba(46,110,158,0.50) !important;
}
button#send-btn:active {
  transform: scale(0.93) !important;
}

/* ── Typing dots — animation plus douce ──────────────────── */
.typing-dots span {
  width: 8px !important;
  height: 8px !important;
  background: linear-gradient(135deg, var(--blue), var(--teal)) !important;
  animation: typing-bounce 1.4s ease-in-out infinite !important;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s !important; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s !important; }
@keyframes typing-bounce {
  0%, 60%, 100% { opacity: 0.25; transform: translateY(0)    scale(0.8); }
  30%            { opacity: 1;    transform: translateY(-5px) scale(1);   }
}

/* ── Bandeau "AquaBot réfléchit" ─────────────────────────── */
.thinking-bar {
  background: linear-gradient(to right, var(--sky), #eef8fe) !important;
  border-top: 1px solid rgba(74,144,196,0.15) !important;
  font-size: 0.77rem !important;
  font-weight: 600 !important;
  color: var(--blue-dark) !important;
  letter-spacing: 0.01em;
}

/* ── Toast notification ──────────────────────────────────── */
.toast {
  border-radius: 14px !important;
  padding: 0.7rem 1.3rem !important;
  font-size: 0.82rem !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18) !important;
  backdrop-filter: blur(8px);
}
.toast.success { background: linear-gradient(135deg, #38a169, #2f855a) !important; }
.toast.error   { background: linear-gradient(135deg, #e05252, #c0392b) !important; }

/* ── Chat container ──────────────────────────────────────── */
.chat-container {
  border-radius: 16px !important;
  box-shadow: 0 4px 28px rgba(74,144,196,0.14), 0 1px 6px rgba(0,0,0,0.05) !important;
  border: 1.5px solid rgba(74,144,196,0.15) !important;
  overflow: hidden !important;
}

/* ── Responsive mobile ───────────────────────────────────── */
@media (max-width: 600px) {
  .bubble { max-width: 88% !important; }
  .msg-row.bot .bubble::before { display: none; }
  .suggestion-chip { padding: 5px 11px !important; font-size: 0.71rem !important; }
  .input-bar { padding: 0.7rem 0.75rem !important; }
  textarea#user-input { font-size: 0.85rem !important; }
}
/* ── Modal Export Données ────────────────────────────────── */
.export-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44, 62, 80, 0.45);
  backdrop-filter: blur(3px);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.export-overlay.open {
  display: flex;
}

.export-modal {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modal-in 0.25s ease;
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.export-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.4rem 0.9rem;
  border-bottom: 1.5px solid var(--sky-mid);
  background: var(--sky);
  border-radius: var(--radius) var(--radius) 0 0;
}
.export-modal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--blue-dark);
}
.export-modal-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--gray-400);
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.export-modal-close:hover { color: var(--red); background: var(--red-bg); }

.export-section {
  padding: 1rem 1.4rem 0.5rem;
  border-bottom: 1px solid var(--gray-100);
}
.export-section-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.6rem;
}

.export-format-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.format-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.45rem 1rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--gray-50);
  font-size: 0.8rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  color: var(--gray-600);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.format-btn:hover { border-color: var(--blue); color: var(--blue-dark); background: var(--sky); }
.format-btn.active {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--white);
}

.date-mode-row {
  display: flex;
  gap: 6px;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.date-mode-btn {
  padding: 0.35rem 0.9rem;
  border: 1.5px solid var(--gray-200);
  border-radius: 20px;
  background: var(--gray-50);
  font-size: 0.78rem;
  font-weight: 600;
  font-family: 'Nunito', sans-serif;
  color: var(--gray-600);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.date-mode-btn:hover { border-color: var(--blue); color: var(--blue-dark); }
.date-mode-btn.active {
  border-color: var(--blue);
  background: var(--sky);
  color: var(--blue-dark);
}

.date-inputs-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}
.date-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 130px;
}
.date-field label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.date-field input {
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.7rem;
  font-size: 0.82rem;
  font-family: 'Nunito', sans-serif;
  color: var(--text);
  background: var(--gray-50);
  outline: none;
  transition: border-color 0.2s;
}
.date-field input:focus { border-color: var(--blue); background: var(--white); }
.date-sep {
  font-size: 1rem;
  color: var(--gray-400);
  padding-bottom: 6px;
}

.bassins-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.export-check-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-800);
  cursor: pointer;
  padding: 5px 10px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--gray-50);
  transition: border-color 0.15s, background 0.15s;
}
.export-check-label:hover { border-color: var(--blue); background: var(--sky); }
.export-check-label input[type="checkbox"] { accent-color: var(--blue); width: 14px; height: 14px; }

.export-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0.75rem 1.4rem;
  padding: 0.6rem 0.9rem;
  background: var(--sky);
  border: 1px solid var(--sky-mid);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--blue-dark);
}

.export-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 1rem 1.4rem;
  border-top: 1.5px solid var(--sky-mid);
}
.export-cancel-btn {
  padding: 0.5rem 1.2rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  color: var(--gray-600);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.export-cancel-btn:hover { background: var(--gray-100); border-color: var(--gray-400); }

.export-do-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.5rem 1.3rem;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  color: var(--white);
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(74,144,196,0.30);
  transition: opacity 0.2s, transform 0.1s;
}
.export-do-btn:hover { opacity: 0.88; }
.export-do-btn:active { transform: scale(0.97); }