/* ============================================
   SISTEMA FINANCIERO AI — Design System Dark
   ============================================ */

:root {
  --bg-base:    #0a0d14;
  --bg-card:    #111827;
  --bg-card2:   #1a2235;
  --bg-input:   #1e2d40;
  --border:     rgba(255,255,255,0.07);
  --border-act: rgba(0,212,255,0.4);
  --accent:     #00d4ff;
  --accent2:    #7b61ff;
  --accent3:    #4ecdc4;
  --success:    #10b981;
  --danger:     #ef4444;
  --warning:    #f59e0b;
  --text-1:     #f1f5f9;
  --text-2:     #94a3b8;
  --text-3:     #475569;
  --sidebar-w:  240px;
  --radius:     12px;
  --radius-sm:  8px;
  --shadow:     0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.6);
  --font:       'Inter', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--bg-base); color: var(--text-1); font-family: var(--font); font-size: 14px; }
a { color: inherit; text-decoration: none; }

/* ---- SHELL ---- */
.app-shell { display: flex; height: 100vh; overflow: hidden; }

/* ---- SIDEBAR ---- */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 20px;
  border-bottom: 1px solid var(--border);
}

.brand-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 18px; color: #fff;
}

.brand-name { font-size: 16px; font-weight: 700; color: var(--text-1); display: block; }
.brand-sub  { font-size: 11px; color: var(--text-3); display: block; }

.nav-menu { list-style: none; padding: 16px 12px; flex: 1; }
.nav-section {
  font-size: 10px; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-3); padding: 16px 8px 6px;
}

.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  color: var(--text-2); font-size: 13.5px; font-weight: 500;
  transition: all .18s;
}
.nav-link:hover { background: var(--bg-card2); color: var(--text-1); }
.nav-link.active {
  background: linear-gradient(90deg, rgba(0,212,255,.15), rgba(0,212,255,.04));
  color: var(--accent);
  border-left: 2px solid var(--accent);
}
.nav-link i { font-size: 16px; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}
.user-info { display: flex; align-items: center; gap: 10px; }
.user-avatar { font-size: 28px; color: var(--accent2); }
.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--text-3); }

.logout-btn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-3);
  font-family: var(--font);
  font-size: 12px;
  padding: 7px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: all .15s;
}
.logout-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(239,68,68,.06);
}

/* ---- MAIN ---- */
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.top-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px; border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
.page-title { font-size: 20px; font-weight: 700; color: var(--text-1); }
.top-bar-right { display: flex; align-items: center; gap: 20px; }

.status-pill {
  display: flex; align-items: center; gap: 6px;
  background: rgba(16,185,129,.12); color: var(--success);
  border: 1px solid rgba(16,185,129,.3);
  padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.pulse {
  width: 7px; height: 7px; background: var(--success); border-radius: 50%;
  animation: pulse 1.4s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.5); }
}

.top-date { color: var(--text-2); font-size: 13px; display: flex; align-items: center; gap: 6px; }

.content-area { flex: 1; overflow-y: auto; padding: 28px; }

/* ---- CARDS ---- */
.card-fin {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  position: relative; overflow: hidden;
  transition: border-color .2s;
}
.kpi-card:hover { border-color: var(--border-act); }
.kpi-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--kpi-color, var(--accent));
}

.kpi-label { font-size: 11px; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .08em; }
.kpi-value { font-size: 28px; font-weight: 700; margin: 8px 0 4px; color: var(--text-1); }
.kpi-sub { font-size: 12px; }
.kpi-up   { color: var(--success); }
.kpi-down { color: var(--danger); }
.kpi-icon {
  position: absolute; right: 20px; top: 50%;
  transform: translateY(-50%);
  font-size: 36px; opacity: .08;
}

.chart-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-bottom: 24px; }
.chart-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 24px; }

.chart-title { font-size: 14px; font-weight: 600; margin-bottom: 16px; color: var(--text-1); display: flex; align-items: center; gap: 8px; }
.chart-title i { color: var(--accent); }

/* ---- TABLES ---- */
.fin-table { width: 100%; border-collapse: collapse; }
.fin-table th {
  text-align: left; font-size: 11px; font-weight: 600;
  color: var(--text-3); text-transform: uppercase; letter-spacing: .08em;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
}
.fin-table td { padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,0.04); font-size: 13.5px; }
.fin-table tbody tr:hover { background: var(--bg-card2); }
.fin-table .monto { font-weight: 600; font-variant-numeric: tabular-nums; }
.fin-table .monto-pos { color: var(--success); }
.fin-table .monto-neg { color: var(--danger); }

/* ---- FORMS ---- */
.form-fin .form-group { margin-bottom: 18px; }
.form-fin label { display: block; font-size: 12px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .06em; }
.form-fin .form-control,
.form-fin .form-select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  padding: 10px 14px;
  font-size: 14px;
  transition: border-color .2s;
  outline: none;
}
.form-fin .form-control:focus,
.form-fin .form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(0,212,255,.15); }
.form-fin .form-control::placeholder { color: var(--text-3); }
.form-fin select option { background: var(--bg-card); }
.form-fin .field-validation-error { font-size: 12px; color: var(--danger); margin-top: 4px; }

/* Variantes standalone para modales (sin contexto .form-fin) */
.form-group-fin {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group-fin label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.form-control-fin {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.form-control-fin:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0,212,255,.15);
}
.form-control-fin::placeholder { color: var(--text-3); }
.fin-modal .form-select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  appearance: auto;
}
.fin-modal .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0,212,255,.15);
}
.fin-modal .form-select option { background: var(--bg-card); }

/* ---- BUTTONS ---- */
.btn-fin {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 20px; border-radius: var(--radius-sm);
  font-size: 13.5px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all .18s;
}
.btn-primary-fin {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border-color: transparent;
}
.btn-primary-fin:hover { opacity: .88; transform: translateY(-1px); }
.btn-ghost-fin { background: transparent; border-color: var(--border); color: var(--text-2); }
.btn-ghost-fin:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger-fin { background: rgba(239,68,68,.12); border-color: rgba(239,68,68,.3); color: var(--danger); }
.btn-danger-fin:hover { background: rgba(239,68,68,.22); }
.btn-success-fin { background: rgba(16,185,129,.12); border-color: rgba(16,185,129,.3); color: var(--success); }

/* ---- BADGES ---- */
.badge-fin {
  display: inline-block; padding: 2px 10px;
  border-radius: 999px; font-size: 11px; font-weight: 600;
}
.badge-success { background: rgba(16,185,129,.15); color: var(--success); }
.badge-danger  { background: rgba(239,68,68,.15);  color: var(--danger); }
.badge-warning { background: rgba(245,158,11,.15); color: var(--warning); }
.badge-info    { background: rgba(0,212,255,.12);  color: var(--accent); }

/* ---- ALERTS TOAST ---- */
.alert-toast {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: var(--radius-sm);
  margin-bottom: 20px; font-size: 13.5px; font-weight: 500;
}
.alert-toast.success { background: rgba(16,185,129,.12); border: 1px solid rgba(16,185,129,.3); color: var(--success); }
.alert-toast.error   { background: rgba(239,68,68,.12);  border: 1px solid rgba(239,68,68,.3);  color: var(--danger); }

/* ---- ESTADO DE RESULTADOS ---- */
.er-section { margin-bottom: 4px; }
.er-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; border-radius: var(--radius-sm);
}
.er-row:hover { background: var(--bg-card2); }
.er-row.subtotal { background: var(--bg-card2); font-weight: 600; }
.er-row.total    { background: rgba(0,212,255,.07); font-weight: 700; font-size: 15px; border: 1px solid rgba(0,212,255,.2); }
.er-row.indent   { padding-left: 36px; }
.er-row.divider  { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 14px; }
.er-label { color: var(--text-2); }
.er-monto { font-variant-numeric: tabular-nums; font-weight: 600; }
.er-pct   { font-size: 12px; color: var(--text-3); margin-left: 8px; }

/* ---- PROYECCIONES ---- */
.scenario-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.scenario-CONSERVADOR { background: rgba(245,158,11,.12); color: var(--warning); }
.scenario-REALISTA    { background: rgba(0,212,255,.12);  color: var(--accent);  }
.scenario-AGRESIVO    { background: rgba(16,185,129,.12); color: var(--success); }
.scenario-CRISIS      { background: rgba(239,68,68,.12);  color: var(--danger);  }
.scenario-EXPANSION   { background: rgba(123,97,255,.12); color: var(--accent2); }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-3); border-radius: 999px; }

/* ---- MISC ---- */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.section-header h2 { font-size: 16px; font-weight: 700; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

.filter-bar {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px; flex-wrap: wrap;
}
.filter-bar .form-control,
.filter-bar .form-select {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-1); padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 13px; outline: none;
}
.filter-bar .form-control:focus,
.filter-bar .form-select:focus { border-color: var(--accent); }

.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-3);
}
.empty-state i { font-size: 48px; display: block; margin-bottom: 12px; opacity: .4; }
.empty-state p { font-size: 14px; }

/* ============================================
   CATÁLOGOS — Tabs, Modal, Badges
   ============================================ */

/* Tabs */
.cat-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}
.cat-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  border-bottom: 2px solid transparent;
  transition: all .15s;
  cursor: pointer;
  margin-bottom: -1px;
}
.cat-tab:hover { color: var(--text-1); }
.cat-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.cat-tab-count {
  background: var(--bg-card2);
  border-radius: 999px;
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-3);
}
.cat-tab.active .cat-tab-count { background: rgba(0,212,255,.15); color: var(--accent); }

/* Clave badge */
.clave-badge {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: .03em;
}

/* Row inactiva */
.row-inactiva td { opacity: .45; }

/* Action group */
.action-group { display: flex; gap: 6px; justify-content: center; }
.btn-sm { padding: 4px 10px !important; font-size: 12px !important; }

/* Badge variants */
.badge-fin { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 500; }
.badge-info    { background: rgba(0,212,255,.12); color: var(--accent); }
.badge-success { background: rgba(16,185,129,.15); color: var(--success); }
.badge-danger  { background: rgba(239,68,68,.12);  color: var(--danger); }
.badge-warning { background: rgba(245,158,11,.12); color: var(--warning); }

/* Modal overlay */
.fin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.fin-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-act);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  animation: modalIn .2s ease;
}
@keyframes modalIn {
  from { opacity:0; transform: scale(.96) translateY(-10px); }
  to   { opacity:1; transform: scale(1) translateY(0); }
}

.fin-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}
.fin-modal-header h3 { font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; }

.fin-modal-close {
  background: none;
  border: none;
  color: var(--text-3);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
  transition: color .15s;
}
.fin-modal-close:hover { color: var(--text-1); }

.fin-modal-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.fin-modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ============================================
   CONSULTAS IA — Chat Interface
   ============================================ */

.ia-shell {
  display: flex;
  height: calc(100vh - var(--topbar-h, 64px) - 48px);
  min-height: 500px;
  gap: 16px;
}

/* Sidebar de sugerencias */
.ia-sidebar {
  width: 240px;
  min-width: 240px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 8px;
  overflow-y: auto;
}

.ia-sidebar-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

.ia-suggestions { display: flex; flex-direction: column; gap: 6px; flex: 1; }

.ia-suggestion {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.45;
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  transition: all .15s;
}
.ia-suggestion:hover {
  border-color: var(--accent);
  color: var(--text-1);
  background: rgba(0,212,255,.06);
}

.ia-clear-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-3);
  font-size: 12px;
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
  transition: all .15s;
  margin-top: 4px;
}
.ia-clear-btn:hover { border-color: var(--danger); color: var(--danger); }

/* Panel principal */
.ia-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* Área de mensajes */
.ia-messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
}

/* Bienvenida */
.ia-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  gap: 16px;
  padding: 40px 24px;
}
.ia-welcome-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 20px;
  display: grid; place-items: center;
  font-size: 32px;
}
.ia-welcome h2 { font-size: 22px; font-weight: 600; color: var(--text-1); }
.ia-welcome p { font-size: 14px; color: var(--text-2); line-height: 1.6; max-width: 440px; }

/* Burbujas */
.ia-bubble {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  max-width: 88%;
  animation: fadeUp .2s ease;
}
.ia-bubble--user { align-self: flex-end; flex-direction: row-reverse; }
.ia-bubble--assistant { align-self: flex-start; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ia-avatar {
  width: 34px; height: 34px; min-width: 34px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 16px;
}
.ia-avatar--user  { background: linear-gradient(135deg, var(--accent2), #5b45cc); color: #fff; }
.ia-avatar--ai    { background: linear-gradient(135deg, var(--accent), #009ab8); color: #fff; }

.ia-bubble-content {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-1);
}
.ia-bubble--user .ia-bubble-content {
  background: rgba(0,212,255,.1);
  border-color: rgba(0,212,255,.25);
}

/* Contenido Markdown dentro de burbuja */
.ia-bubble-content p  { margin: 0 0 8px; }
.ia-bubble-content p:last-child { margin-bottom: 0; }
.ia-bubble-content h2 { font-size: 15px; font-weight: 700; margin: 12px 0 6px; color: var(--accent); }
.ia-bubble-content h3 { font-size: 14px; font-weight: 600; margin: 10px 0 4px; color: var(--text-1); }
.ia-bubble-content h4 { font-size: 13px; font-weight: 600; margin: 8px 0 4px; color: var(--text-2); }
.ia-bubble-content ul { padding-left: 18px; margin: 6px 0; }
.ia-bubble-content li { margin-bottom: 3px; }
.ia-bubble-content strong { color: var(--text-1); font-weight: 600; }

/* Typing animation */
.ia-typing {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 14px 18px;
}
.ia-typing span {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: typingDot 1.2s infinite;
}
.ia-typing span:nth-child(2) { animation-delay: .2s; }
.ia-typing span:nth-child(3) { animation-delay: .4s; }
@keyframes typingDot {
  0%, 60%, 100% { opacity: .25; transform: scale(.9); }
  30% { opacity: 1; transform: scale(1.1); }
}

/* Error */
.ia-error-msg {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 13px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: stretch;
}

/* Input area */
.ia-input-area {
  border-top: 1px solid var(--border);
  padding: 16px 20px;
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ia-input-box {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  transition: border-color .2s;
}
.ia-input-box:focus-within { border-color: var(--accent); }

.ia-textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-1);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  max-height: 160px;
  overflow-y: auto;
}
.ia-textarea::placeholder { color: var(--text-3); }

.ia-send-btn {
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #000;
  width: 36px; height: 36px; min-width: 36px;
  display: grid; place-items: center;
  cursor: pointer;
  font-size: 15px;
  transition: all .15s;
}
.ia-send-btn:hover:not(:disabled) { background: #33deff; transform: scale(1.05); }
.ia-send-btn:disabled { opacity: .5; cursor: not-allowed; }

.ia-input-hint {
  font-size: 11px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 5px;
}
#iaStatus { color: var(--accent); }

.spin { animation: spin .8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 900px) {
  .chart-grid { grid-template-columns: 1fr; }
  .chart-grid-3 { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}