/* BCG-v2 Dashboard */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3250;
  --accent: #4f6ef7;
  --accent-hover: #6b85ff;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --text: #e2e8f0;
  --muted: #64748b;
  --radius: 10px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-height: 100vh;
}

/* ── Login ── */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-card h1 { font-size: 22px; margin-bottom: 4px; }
.login-card p { color: var(--muted); margin-bottom: 28px; font-size: 13px; }

/* ── App shell ── */
#app-screen { display: flex; min-height: 100vh; }

nav {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  flex-shrink: 0;
}

.nav-brand {
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.nav-brand h2 { font-size: 16px; font-weight: 700; }
.nav-brand span { font-size: 11px; color: var(--muted); }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 0;
  color: var(--muted);
  border-left: 3px solid transparent;
  transition: all .15s;
  font-size: 13px;
}

.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--surface2); color: var(--accent); border-left-color: var(--accent); }
.nav-item .icon { font-size: 16px; width: 20px; text-align: center; }

.nav-footer {
  margin-top: auto;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

.user-badge { font-size: 12px; color: var(--muted); margin-bottom: 10px; word-break: break-all; }

main {
  flex: 1;
  padding: 28px;
  overflow-y: auto;
}

/* ── Sections ── */
.section { display: none; }
.section.active { display: block; }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h2 { font-size: 20px; font-weight: 600; }

/* ── KPI Cards ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.kpi-card .label { font-size: 12px; color: var(--muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .5px; }
.kpi-card .value { font-size: 28px; font-weight: 700; }
.kpi-card .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }
.kpi-card.accent .value { color: var(--accent); }
.kpi-card.success .value { color: var(--success); }
.kpi-card.warning .value { color: var(--warning); }
.kpi-card.danger .value { color: var(--danger); }

/* ── Tabla ── */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.table-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

table { width: 100%; border-collapse: collapse; }
thead { background: var(--surface2); }
th { padding: 10px 14px; text-align: left; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
td { padding: 12px 14px; border-top: 1px solid var(--border); font-size: 13px; }
tr:hover td { background: var(--surface2); }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-caliente { background: rgba(239,68,68,.15); color: #f87171; }
.badge-tibio    { background: rgba(245,158,11,.15); color: #fbbf24; }
.badge-frio     { background: rgba(100,116,139,.15); color: #94a3b8; }
.badge-borrador { background: rgba(100,116,139,.15); color: #94a3b8; }
.badge-enviado  { background: rgba(79,110,247,.15); color: #818cf8; }
.badge-aprobado { background: rgba(34,197,94,.15); color: #4ade80; }
.badge-rechazado{ background: rgba(239,68,68,.15); color: #f87171; }
.badge-vencido  { background: rgba(239,68,68,.1); color: #ef4444; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }

input[type=text], input[type=email], input[type=password], input[type=number],
select, textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 12px;
  font-size: 13px;
  outline: none;
  transition: border-color .15s;
}

input:focus, select:focus, textarea:focus { border-color: var(--accent); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all .15s;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(239,68,68,.15); color: #f87171; border: 1px solid rgba(239,68,68,.3); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 16px; }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Items presupuesto ── */
.items-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.item-row {
  display: grid;
  grid-template-columns: 1fr 70px 90px 28px;
  gap: 6px;
  align-items: center;
}
.item-row select, .item-row input { margin: 0; }

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 13px;
  z-index: 999;
  display: none;
  max-width: 320px;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
}
#toast.show { display: block; }
#toast.ok { border-left: 3px solid var(--success); }
#toast.err { border-left: 3px solid var(--danger); }

/* ── Misc ── */
.empty { color: var(--muted); font-size: 13px; padding: 32px; text-align: center; }
.loading { color: var(--muted); font-size: 13px; padding: 20px; text-align: center; }
.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.text-muted { color: var(--muted); }
.text-right { text-align: right; }
.flex { display: flex; align-items: center; gap: 10px; }
.ml-auto { margin-left: auto; }
.w-full { width: 100%; }

/* ── Responsive ── */
@media (max-width: 700px) {
  nav { width: 56px; }
  .nav-brand, .nav-item span, .user-badge, .nav-footer .btn span { display: none; }
  .nav-item { justify-content: center; padding: 12px; }
  main { padding: 16px; }
}