*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; line-height: 1.5; min-height: 100vh; }

/* ── Layout shell ────────────────────────────────────────── */
body { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100vh; }
#sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column;
  overflow-y: auto;
}
#view { padding: 28px 32px; max-width: 1280px; width: 100%; margin: 0 auto; }

/* ── Sidebar ─────────────────────────────────────────────── */
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 8px 28px; text-decoration: none; color: var(--text); }
.brand-logo {
  width: 42px; height: 42px; border-radius: 11px;
  background: linear-gradient(135deg, var(--green), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #0A0F1E; font-size: 18px;
  box-shadow: 0 4px 14px rgba(0,212,170,0.25);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-line1 { font-size: 10px; font-weight: 500; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; font-family: var(--mono); }
.brand-line2 { font-size: 16px; font-weight: 700; letter-spacing: -0.4px; color: var(--text); }

.nav { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.nav-section { font-family: var(--mono); font-size: 9px; color: var(--dim); text-transform: uppercase; letter-spacing: .14em; padding: 18px 12px 6px; font-weight: 600; }

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: 10px;
  color: var(--muted); cursor: pointer; text-decoration: none;
  font-size: 13.5px; font-weight: 500;
  transition: background .12s, color .12s, transform .08s;
  position: relative;
}
.nav-item:hover { background: var(--hover); color: var(--text); }
.nav-item:active { transform: scale(0.98); }
.nav-item.active {
  background: var(--card);
  color: var(--text-strong);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 4px rgba(0,0,0,0.15);
}
.nav-item.active::before {
  content: ''; position: absolute; left: -16px; top: 8px; bottom: 8px;
  width: 3px; background: var(--green); border-radius: 0 3px 3px 0;
}
.nav-item.zonas.active::before { background: var(--zonas); }
.nav-item.liquidez.active::before { background: var(--liquidez); }
.nav-item.nasdaq.active::before { background: var(--nasdaq); }

.nav-icon {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--card2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; flex-shrink: 0;
  transition: background .12s, border-color .12s;
}
.nav-item:hover .nav-icon { border-color: var(--border-strong); }
.nav-item.active .nav-icon { background: var(--surface); border-color: var(--border-strong); }
.nav-item.zonas .nav-icon { color: var(--zonas); }
.nav-item.liquidez .nav-icon { color: var(--liquidez); }
.nav-item.nasdaq .nav-icon { color: var(--nasdaq); }
.nav-item.zonas.active .nav-icon { background: var(--zonas-bg); border-color: var(--zonas); }
.nav-item.liquidez.active .nav-icon { background: var(--liquidez-bg); border-color: var(--liquidez); }
.nav-item.nasdaq.active .nav-icon { background: var(--nasdaq-bg); border-color: var(--nasdaq); }

.nav-label { flex: 1; }
.nav-meta { font-family: var(--mono); font-size: 10px; color: var(--dim); }

/* Contexto bajo el brand: nombre del usuario o "viendo a alumno" */
.brand-context {
  padding: 10px 12px 16px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.bc-name-self {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.2px;
  display: flex; align-items: center; gap: 6px;
}
.bc-name-self::before {
  content: '👤';
  font-size: 11px;
  opacity: .7;
}
.brand-context.viewing-as {
  background: linear-gradient(180deg, rgba(255,165,2,0.12), rgba(255,165,2,0.04));
  border: 1px solid rgba(255,165,2,0.4);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 0 0 14px;
}
.bc-label {
  font-size: 9px;
  font-family: var(--mono);
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .14em;
  margin-bottom: 4px;
}
.bc-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 8px;
  line-height: 1.2;
  word-break: break-word;
}
.bc-exit {
  background: var(--orange-bg);
  border: 1px solid rgba(255,165,2,0.4);
  color: var(--orange);
  padding: 5px 10px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: all .12s;
}
.bc-exit:hover {
  background: var(--orange);
  color: #0A0F1E;
}

/* En sidebar colapsada: nombre se oculta, solo el icono visible */
@media (max-width: 1100px) {
  .brand-context { padding: 8px 0; text-align: center; }
  .brand-context.viewing-as {
    margin: 0 4px 10px; padding: 6px;
  }
  .bc-name-self { justify-content: center; font-size: 0; }
  .bc-name-self::before { font-size: 16px; }
  .bc-label { font-size: 0; }
  .bc-label::before { content: '📍'; font-size: 16px; }
  .bc-name { font-size: 0; }
  .bc-name::before { content: '👁'; font-size: 14px; display: block; }
  .bc-exit { font-size: 0; padding: 4px; }
  .bc-exit::before { content: '↩'; font-size: 14px; }
}

.theme-toggle {
  margin-top: 14px; padding: 12px 14px; background: var(--card); border-radius: 10px;
  display: flex; align-items: center; justify-content: space-between; cursor: pointer;
  border: 1px solid var(--border); color: var(--muted); font-family: var(--mono); font-size: 12px;
  gap: 10px;
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-strong); background: var(--surface); }
.theme-toggle-icon { font-size: 16px; }

/* ── Headings + section dividers ─────────────────────────── */
.page-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 16px; }
.page-header h1 { font-size: 24px; font-weight: 600; letter-spacing: -0.5px; }
.page-header h1 span { color: var(--green); }
.page-header .sub { font-size: 12px; color: var(--muted); font-family: var(--mono); margin-top: 4px; }
.page-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.section-title { font-size: 11px; font-family: var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .1em; margin: 28px 0 14px; display: flex; align-items: center; gap: 10px; }
.section-title::after { content:''; flex:1; height:1px; background: var(--border); }

/* ── Form controls (filters, selects) ────────────────────── */
.select, select.select {
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  padding: 6px 28px 6px 12px; border-radius: 8px;
  font-family: var(--mono); font-size: 12px; cursor: pointer; outline: none;
  appearance: none; -webkit-appearance: none;
  background-image: url('data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%2212%22 height=%2212%22 viewBox=%220 0 12 12%22><path fill=%22%236B7594%22 d=%22M6 8L1 3h10z%22/></svg>');
  background-repeat: no-repeat; background-position: right 8px center;
}
.select:hover { border-color: var(--border-strong); }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--card); color: var(--text); cursor: pointer; font-family: var(--mono); font-size: 12px; transition: all .12s; }
.btn:hover { background: var(--hover); }
.btn.primary { background: var(--green); color: #0A0F1E; border-color: var(--green); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger { color: var(--red); border-color: rgba(255,71,87,0.3); }
.btn.danger:hover { background: var(--red-bg); }
.btn.ghost { border-color: transparent; }

.badge { font-family: var(--mono); font-size: 10px; padding: 4px 10px; border-radius: 20px; border: 1px solid var(--border); color: var(--muted); background: var(--surface); }
.badge.live { border-color: var(--green); color: var(--green); }
.badge.zonas { border-color: var(--zonas); color: var(--zonas); background: var(--zonas-bg); }
.badge.liquidez { border-color: var(--liquidez); color: var(--liquidez); background: var(--liquidez-bg); }
.badge.nasdaq { border-color: var(--nasdaq); color: var(--nasdaq); background: var(--nasdaq-bg); }

/* ── KPI grid ────────────────────────────────────────────── */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 24px; }
.kpi-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; position: relative; overflow: hidden; }
.kpi-card::before { content:''; position:absolute; top:0; left:0; right:0; height:2px; }
.kpi-card.green::before { background: var(--green); }
.kpi-card.red::before { background: var(--red); }
.kpi-card.orange::before { background: var(--orange); }
.kpi-card.blue::before { background: var(--accent); }
.kpi-card.purple::before { background: var(--zonas); }
.kpi-label { font-size: 10px; font-family: var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.kpi-value { font-size: 24px; font-weight: 600; letter-spacing: -1px; line-height: 1; }
.kpi-value.green { color: var(--green); }
.kpi-value.red { color: var(--red); }
.kpi-value.orange { color: var(--orange); }
.kpi-sub { font-size: 11px; color: var(--muted); margin-top: 6px; font-family: var(--mono); }

/* ── Cards / charts ──────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 24px; }
.grid-2-1 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-bottom: 24px; }
.grid-1-2 { display: grid; grid-template-columns: 1fr 2fr; gap: 16px; margin-bottom: 24px; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card-title { font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 4px; }
.card-sub { font-size: 11px; color: var(--muted); font-family: var(--mono); margin-bottom: 16px; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.card-head .card-title, .card-head .card-sub { margin-bottom: 0; }
.chart-wrap { position: relative; width: 100%; }

.mini-stats { display: flex; gap: 20px; margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.mini-stat-val { font-size: 18px; font-weight: 600; letter-spacing: -.5px; line-height: 1; }
.mini-stat-lbl { font-size: 10px; color: var(--muted); font-family: var(--mono); margin-top: 4px; }

/* ── Tables ──────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); font-weight: 400; }
.data-table td { padding: 9px 12px; font-size: 12px; border-bottom: 1px solid var(--border); color: var(--text); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--hover); }

/* ── Strategy pills ──────────────────────────────────────── */
.strat-pill { font-family: var(--mono); font-size: 10px; padding: 3px 10px; border-radius: 20px; border: 1px solid; display: inline-block; }
.strat-pill.zonas { color: var(--zonas); border-color: var(--zonas); background: var(--zonas-bg); }
.strat-pill.liquidez { color: var(--liquidez); border-color: var(--liquidez); background: var(--liquidez-bg); }
.strat-pill.nasdaq { color: var(--nasdaq); border-color: var(--nasdaq); background: var(--nasdaq-bg); }

/* ── Result badges ───────────────────────────────────────── */
.res-pill { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 10px; font-family: var(--mono); font-weight: 500; }
.res-tp { background: var(--green-bg); color: var(--green); border: 1px solid rgba(0,212,170,0.3); }
.res-sl { background: var(--red-bg); color: var(--red); border: 1px solid rgba(255,71,87,0.3); }
.res-be { background: var(--orange-bg); color: var(--orange); border: 1px solid rgba(255,165,2,0.3); }

/* ── Sensación pills ─────────────────────────────────────── */
.sens-pill { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 10px; font-family: var(--mono); }
.sens-pill[data-s="Seguro - Confiado"]    { background: rgba(0,212,170,.18); color: #00D4AA; }
.sens-pill[data-s="Convencido - Calma"]   { background: rgba(59,130,246,.18); color: #60A5FA; }
.sens-pill[data-s="Dudoso - Inseguro"]    { background: rgba(255,165,2,.18); color: #FFA502; }
.sens-pill[data-s="Fomo - Acelerado"]     { background: rgba(239,68,68,.18); color: #EF4444; }
.sens-pill[data-s="Venganza - Rabia"]     { background: rgba(168,85,247,.18); color: #C084FC; }
.sens-pill[data-s="Miedo - Parálisis"]    { background: rgba(120,120,130,.18); color: #9CA3AF; }

/* ── Alerts (diagnostic) ─────────────────────────────────── */
.alert { display: flex; align-items: flex-start; gap: 12px; padding: 12px 14px; border-radius: 10px; border: 1px solid; margin-bottom: 8px; }
.alert.warning { background: var(--orange-bg); border-color: rgba(255,165,2,0.25); }
.alert.danger { background: var(--red-bg); border-color: rgba(255,71,87,0.25); }
.alert.success { background: var(--green-bg); border-color: rgba(0,212,170,0.25); }
.alert-icon { font-size: 13px; margin-top: 1px; flex-shrink: 0; }
.alert-title { font-size: 12px; font-weight: 500; margin-bottom: 2px; }
.alert.warning .alert-title { color: var(--orange); }
.alert.danger .alert-title { color: var(--red); }
.alert.success .alert-title { color: var(--green); }
.alert-body { font-size: 11px; color: var(--muted); font-family: var(--mono); }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.65); z-index:9999; align-items:center; justify-content:center; padding: 20px; }
.modal-overlay.active { display:flex; }
.modal { background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); padding: 24px; max-width: 600px; width: 100%; max-height: 80vh; overflow-y: auto; position: relative; }
.modal-title { font-size: 15px; font-weight: 600; color: var(--text-strong); margin-bottom: 4px; }
.modal-meta { font-size: 11px; color: var(--muted); font-family: var(--mono); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.modal-body { font-size: 13px; color: var(--text); line-height: 1.7; white-space: pre-wrap; }
.modal-close { position: absolute; top: 14px; right: 16px; background: none; border: none; color: var(--muted); cursor: pointer; font-size: 18px; padding: 4px; }
.modal-close:hover { color: var(--text); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* ── Loader ──────────────────────────────────────────────── */
.loader { display:flex; flex-direction:column; align-items:center; justify-content:center; padding: 60px 20px; gap: 16px; }
.spinner { width:36px; height:36px; border:3px solid rgba(255,255,255,0.1); border-top-color: var(--green); border-radius:50%; animation:spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Empty state ─────────────────────────────────────────── */
.empty { padding: 60px 20px; text-align: center; color: var(--muted); font-family: var(--mono); font-size: 12px; }
.empty .big { font-size: 28px; margin-bottom: 12px; }
.empty .btn { margin-top: 20px; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1100px) {
  body { grid-template-columns: 68px 1fr; }
  :root { --sidebar-w: 68px; }
  .brand-text, .nav-label, .nav-meta, .nav-section, .theme-toggle span { display: none; }
  .nav-item { justify-content: center; padding: 11px 0; }
  .nav-item.active::before { left: -8px; }
  .theme-toggle { justify-content: center; padding: 10px 0; }
  .brand { justify-content: center; padding: 4px 0 24px; }
}
@media (max-width: 800px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-2, .grid-2-1, .grid-1-2 { grid-template-columns: 1fr; }
  #view { padding: 20px 16px; }
}