/* ==========================================================================
   MTStore IA — feuille de style du sous-domaine ia.mtstore.fr
   Palette validée sur les maquettes : fond #07080B, panneaux #0B0C10 / #101216,
   bordures #16181E / #1F2229, texte #EDEFF4, accent indigo #4B43E8.
   ========================================================================== */

:root {
  --ia-bg: #07080B;
  --ia-panel: #0B0C10;
  --ia-card: #101216;
  --ia-card-2: #16181E;
  --ia-line: #1F2229;
  --ia-line-2: #2A2D35;
  --ia-fg: #EDEFF4;
  --ia-muted: #8A90A2;
  --ia-muted-2: #6E7480;
  --ia-dim: #5A6070;
  --ia-ac: #4B43E8;
  --ia-ac-soft: rgba(75, 67, 232, .14);
  --ia-ac-light: #A8A2FF;
  --ia-ok: #7FE3B0;
  --ia-warn: #F0A030;
  --ia-danger: #FF8A72;
  --ia-r: 12px;
}

* { box-sizing: border-box; }

.ia-root {
  margin: 0;
  min-height: 100vh;
  background: var(--ia-bg);
  color: var(--ia-fg);
  font-family: 'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

.ia-root a { color: var(--ia-ac-light); text-decoration: none; }
.ia-root a:hover { color: #fff; }
.ia-root ::selection { background: rgba(75, 67, 232, .35); }
.ia-root ::-webkit-scrollbar { width: 10px; height: 10px; }
.ia-root ::-webkit-scrollbar-thumb { background: #23262E; border-radius: 99px; }
.ia-root ::-webkit-scrollbar-track { background: transparent; }

/* ---------- utilitaires ---------- */
.ia-wrap { max-width: 1180px; margin: 0 auto; padding: 0 22px; }
.ia-row { display: flex; align-items: center; gap: 12px; }
.ia-col { display: flex; flex-direction: column; }
.ia-grow { flex: 1; min-width: 0; }
.ia-mut { color: var(--ia-muted); }
.ia-dim { color: var(--ia-dim); }
.ia-sm { font-size: 13px; }
.ia-xs { font-size: 11.5px; }
.ia-b { font-weight: 700; }
.ia-bb { font-weight: 800; letter-spacing: -.018em; }
.ia-kicker {
  font-size: 11px; font-weight: 800; letter-spacing: .07em;
  text-transform: uppercase; color: var(--ia-muted);
}
.ia-card {
  background: var(--ia-card); border: 1px solid var(--ia-line);
  border-radius: var(--ia-r); padding: 20px 22px;
}
.ia-card--flat { background: var(--ia-card-2); }
.ia-grid { display: grid; gap: 14px; }
.ia-g2 { grid-template-columns: repeat(2, 1fr); }
.ia-g3 { grid-template-columns: repeat(3, 1fr); }
.ia-g4 { grid-template-columns: repeat(4, 1fr); }
.ia-sep { height: 1px; background: var(--ia-line); border: 0; margin: 18px 0; }

/* ---------- boutons ---------- */
.ia-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-size: 14px; font-weight: 700; cursor: pointer;
  padding: 12px 20px; border-radius: 10px; border: 1px solid transparent;
  background: var(--ia-ac); color: #fff; transition: filter .15s, background .15s;
}
.ia-btn:hover { filter: brightness(1.1); color: #fff; }
.ia-btn--ghost { background: transparent; border-color: var(--ia-line-2); color: var(--ia-fg); }
.ia-btn--ghost:hover { background: rgba(255, 255, 255, .06); filter: none; }
.ia-btn--light { background: #fff; color: #14161B; }
.ia-btn--danger { background: transparent; border-color: #4A2A26; color: var(--ia-danger); }
.ia-btn--danger:hover { background: rgba(255, 138, 114, .1); filter: none; }
.ia-btn[disabled] { opacity: .45; cursor: not-allowed; }
.ia-btn--sm { padding: 8px 14px; font-size: 12.5px; border-radius: 9px; }

/* ---------- pastilles ---------- */
.ia-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 800; padding: 4px 10px; border-radius: 999px;
  background: var(--ia-ac-soft); color: var(--ia-ac-light);
}
.ia-tag--ok { background: rgba(127, 227, 176, .13); color: var(--ia-ok); }
.ia-tag--warn { background: rgba(240, 160, 48, .14); color: var(--ia-warn); }
.ia-tag--danger { background: rgba(255, 138, 114, .13); color: var(--ia-danger); }
.ia-tag--mut { background: rgba(255, 255, 255, .06); color: var(--ia-muted); }
.ia-dot { width: 7px; height: 7px; border-radius: 999px; background: var(--ia-ok); flex-shrink: 0; }

/* ---------- champs ---------- */
.ia-field {
  width: 100%; background: var(--ia-card-2); border: 1px solid var(--ia-line);
  border-radius: 10px; padding: 12px 14px; color: var(--ia-fg);
  font-family: inherit; font-size: 14px; outline: none;
}
.ia-field:focus { border-color: var(--ia-ac); }
.ia-field::placeholder { color: var(--ia-dim); }
.ia-label { display: block; font-size: 12.5px; font-weight: 700; color: var(--ia-muted); margin-bottom: 7px; }
.ia-check { display: flex; gap: 11px; align-items: flex-start; cursor: pointer; }
.ia-check input { margin-top: 3px; accent-color: var(--ia-ac); width: 16px; height: 16px; }

/* ---------- barres de progression ---------- */
.ia-bar { height: 6px; border-radius: 99px; background: var(--ia-line); overflow: hidden; }
.ia-bar > i { display: block; height: 100%; background: var(--ia-ac); }
.ia-bar > i.ok { background: var(--ia-ok); }
.ia-bar > i.warn { background: var(--ia-warn); }

/* ---------- tableaux ---------- */
.ia-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.ia-table th {
  text-align: left; padding: 11px 14px; font-size: 11px; font-weight: 800;
  letter-spacing: .05em; text-transform: uppercase; color: var(--ia-muted);
  background: var(--ia-card-2); border-bottom: 1px solid var(--ia-line);
}
.ia-table td { padding: 13px 14px; border-bottom: 1px solid var(--ia-line); vertical-align: middle; }
.ia-table tr:last-child td { border-bottom: 0; }
.ia-table tbody tr:hover td { background: rgba(255, 255, 255, .02); }

/* ---------- onglets ---------- */
.ia-tabs { display: flex; gap: 4px; background: var(--ia-card-2); padding: 4px; border-radius: 11px; }
.ia-tabs a {
  flex: 1; text-align: center; padding: 9px 12px; border-radius: 8px;
  font-size: 13px; font-weight: 700; color: var(--ia-muted);
}
.ia-tabs a.on { background: var(--ia-card); color: var(--ia-fg); box-shadow: 0 2px 8px -4px rgba(0, 0, 0, .6); }

/* ==========================================================================
   Application de chat
   ========================================================================== */
.ia-app { display: flex; height: 100vh; overflow: hidden; }

.ia-side {
  width: 250px; flex-shrink: 0; background: var(--ia-panel);
  border-right: 1px solid var(--ia-card-2); display: flex; flex-direction: column;
}
.ia-brand { display: flex; align-items: center; gap: 10px; padding: 16px 16px 12px; }
.ia-brand__mark {
  width: 34px; height: 34px; border-radius: 10px; background: var(--ia-ac);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.ia-side__new { margin: 0 12px 12px; }
.ia-side__scroll { flex: 1; min-height: 0; overflow-y: auto; padding: 0 8px 8px; }
.ia-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 11px;
  border-radius: 9px; font-size: 13.5px; font-weight: 600; color: var(--ia-muted);
}
.ia-nav a:hover { background: rgba(255, 255, 255, .04); color: var(--ia-fg); }
.ia-nav a.on { background: var(--ia-ac-soft); color: #fff; }
.ia-convs { display: flex; flex-direction: column; gap: 2px; }
.ia-conv {
  display: flex; align-items: center; gap: 9px; padding: 9px 11px; border-radius: 9px;
  font-size: 13px; color: var(--ia-muted); overflow: hidden;
}
.ia-conv:hover { background: rgba(255, 255, 255, .04); color: var(--ia-fg); }
.ia-conv.on { background: var(--ia-card); color: var(--ia-fg); }
.ia-conv__t { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ia-side__foot { border-top: 1px solid var(--ia-card-2); padding: 12px; }

.ia-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ia-top {
  height: 56px; flex-shrink: 0; border-bottom: 1px solid var(--ia-card-2);
  display: flex; align-items: center; gap: 12px; padding: 0 20px;
}
.ia-thread { flex: 1; min-height: 0; overflow-y: auto; padding: 26px 0 8px; }
.ia-thread__inner { max-width: 760px; margin: 0 auto; padding: 0 22px; }

.ia-msg { display: flex; gap: 14px; padding: 14px 0; }
.ia-msg__av {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 800; background: var(--ia-card-2); color: var(--ia-muted);
}
.ia-msg--ia .ia-msg__av { background: var(--ia-ac); color: #fff; }
.ia-msg__body { flex: 1; min-width: 0; }
.ia-msg__who { font-size: 12.5px; font-weight: 800; margin-bottom: 5px; }
.ia-msg__text { font-size: 15px; line-height: 1.62; white-space: pre-wrap; word-break: break-word; }
.ia-msg__text code {
  background: var(--ia-card-2); border: 1px solid var(--ia-line);
  border-radius: 5px; padding: 1px 5px; font-size: 13px;
}
.ia-msg__meta { display: flex; align-items: center; gap: 12px; margin-top: 10px; font-size: 11.5px; color: var(--ia-dim); }
.ia-msg__acts { display: flex; gap: 6px; margin-top: 10px; }
.ia-msg__acts button {
  background: transparent; border: 1px solid var(--ia-line); color: var(--ia-muted);
  border-radius: 8px; padding: 5px 10px; font-size: 11.5px; font-family: inherit; cursor: pointer;
}
.ia-msg__acts button:hover { color: var(--ia-fg); border-color: var(--ia-line-2); }

.ia-composer { flex-shrink: 0; border-top: 1px solid var(--ia-card-2); padding: 14px 0 18px; }
.ia-composer__inner { max-width: 760px; margin: 0 auto; padding: 0 22px; }
.ia-composer__box {
  background: var(--ia-card); border: 1px solid var(--ia-line-2);
  border-radius: 14px; padding: 12px 14px;
}
.ia-composer__box:focus-within { border-color: var(--ia-ac); }
.ia-composer textarea {
  width: 100%; min-height: 52px; max-height: 200px; resize: none; border: 0;
  background: transparent; color: var(--ia-fg); font-family: inherit;
  font-size: 15px; line-height: 1.5; outline: none;
}
.ia-composer__bar { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.ia-composer__note { text-align: center; font-size: 11px; color: var(--ia-dim); margin-top: 9px; }
.ia-select {
  background: var(--ia-card-2); border: 1px solid var(--ia-line); color: var(--ia-fg);
  border-radius: 9px; padding: 7px 10px; font-family: inherit; font-size: 12.5px; outline: none;
}

.ia-empty { max-width: 620px; margin: 8vh auto 0; padding: 0 22px; text-align: center; }
.ia-suggest { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 22px; text-align: left; }
.ia-suggest button {
  background: var(--ia-card); border: 1px solid var(--ia-line); border-radius: 11px;
  padding: 14px 15px; cursor: pointer; font-family: inherit; color: var(--ia-fg); text-align: left;
}
.ia-suggest button:hover { border-color: var(--ia-ac); }

.ia-flash {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  background: var(--ia-card); border: 1px solid var(--ia-line-2); color: var(--ia-fg);
  border-radius: 11px; padding: 12px 18px; font-size: 13.5px; z-index: 90;
  box-shadow: 0 20px 50px -22px rgba(0, 0, 0, .8);
}
.ia-alert {
  display: flex; gap: 11px; align-items: flex-start; border-radius: 11px;
  padding: 13px 15px; font-size: 13px; line-height: 1.5;
  background: rgba(240, 160, 48, .1); border: 1px solid rgba(240, 160, 48, .28); color: #F3C98A;
}

/* ---------- graphique en barres ---------- */
.ia-chart { display: flex; align-items: flex-end; gap: 4px; height: 120px; }
.ia-chart > i {
  flex: 1; border-radius: 4px 4px 0 0; background: var(--ia-ac); min-height: 2px; opacity: .85;
}
.ia-chart > i:hover { opacity: 1; }
.ia-chart__x { display: flex; justify-content: space-between; font-size: 10.5px; color: var(--ia-dim); margin-top: 7px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .ia-g4, .ia-g3, .ia-g2 { grid-template-columns: 1fr; }
  .ia-side { display: none; }
  .ia-side.open {
    display: flex; position: fixed; inset: 0 auto 0 0; z-index: 80; width: 84vw; max-width: 300px;
    box-shadow: 0 0 0 100vmax rgba(0, 0, 0, .6);
  }
  .ia-suggest { grid-template-columns: 1fr; }
  .ia-tabs { overflow-x: auto; }
  .ia-tabs a { flex: 0 0 auto; }
}