:root {
  --amarillo: #ffcc00;
  --naranja: #ff9800;
  --tinta: #2b2b2b;
  --gris: #6b7280;
  --gris-claro: #f3f4f6;
  --borde: #e5e7eb;
  --rojo: #e23b3b;
  --verde: #1f9d55;
  --amarillo-sem: #d98a00;
  --azul: #2563eb;
  --radius: 12px;
  --sombra: 0 2px 12px rgba(0, 0, 0, 0.08);
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--tinta); background: var(--gris-claro); }
.screen { min-height: 100vh; }
[hidden] { display: none !important; }

/* ===== Login ===== */
#login-screen {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--amarillo), var(--naranja));
  padding: 20px;
}
.card { background: #fff; border-radius: var(--radius); box-shadow: var(--sombra); }
.login-card { width: 100%; max-width: 360px; padding: 32px 28px; display: flex; flex-direction: column; gap: 14px; }
.brand { margin: 0; font-size: 1.4rem; text-align: center; }
.subtitle { margin: -8px 0 8px; text-align: center; color: var(--gris); font-size: 0.9rem; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--gris); }
input, select, textarea {
  font: inherit; padding: 9px 11px; border: 1px solid var(--borde); border-radius: 8px; color: var(--tinta);
  background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--amarillo); border-color: var(--amarillo); }

.btn {
  font: inherit; border: none; border-radius: 50px; padding: 9px 18px; cursor: pointer;
  font-weight: 600; transition: filter .15s, background .15s;
}
.btn:hover { filter: brightness(0.96); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: linear-gradient(135deg, var(--amarillo), var(--naranja)); color: #3a2a00; }
.btn-ghost { background: transparent; color: var(--gris); border: 1px solid var(--borde); }
.btn-danger { background: var(--rojo); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 0.85rem; }
.error-msg { color: var(--rojo); font-size: 0.85rem; margin: 0; }

/* ===== Layout app ===== */
.app-layout { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.sidebar { background: var(--tinta); color: #fff; display: flex; flex-direction: column; padding: 16px 0; }
.sidebar-brand { font-weight: 700; padding: 0 20px 14px; font-size: 1.05rem; border-bottom: 1px solid #ffffff22; }
.nav { display: flex; flex-direction: column; padding: 10px 0; flex: 1; gap: 2px; overflow: auto; }
.nav button {
  background: none; border: none; color: #d7d7d7; text-align: left; padding: 10px 20px; cursor: pointer;
  font: inherit; font-size: 0.92rem; border-left: 3px solid transparent;
}
.nav button:hover { background: #ffffff12; color: #fff; }
.nav button.active { color: var(--amarillo); border-left-color: var(--amarillo); background: #ffffff10; }
.sidebar-foot { padding: 12px 20px 0; border-top: 1px solid #ffffff22; display: flex; flex-direction: column; gap: 8px; }
.user-label { font-size: 0.8rem; color: #c9c9c9; }

.content { padding: 22px 28px; overflow: auto; }
.content-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.content-head h2 { margin: 0; font-size: 1.3rem; }
.head-actions { display: flex; gap: 8px; align-items: center; }

/* ===== Tablas / vistas ===== */
.view { display: flex; flex-direction: column; gap: 14px; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.toolbar label { flex-direction: row; align-items: center; gap: 6px; }
.table-wrap { background: #fff; border-radius: var(--radius); box-shadow: var(--sombra); overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--borde); white-space: nowrap; }
th { background: #fafafa; color: var(--gris); font-weight: 600; position: sticky; top: 0; }
tr:hover td { background: #fffdf5; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.badge { padding: 2px 9px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
.badge-ok { background: #e7f6ec; color: var(--verde); }
.badge-off { background: #fdeaea; color: var(--rojo); }
.muted { color: var(--gris); font-size: 0.82rem; }
.cards-row { display: flex; gap: 14px; flex-wrap: wrap; }
.stat-card { background: #fff; border-radius: var(--radius); box-shadow: var(--sombra); padding: 16px 20px; min-width: 160px; flex: 1; }
.stat-card .n { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-card .l { color: var(--gris); font-size: 0.82rem; }
.stat-card .sub { color: var(--gris); font-size: 0.72rem; margin-top: 2px; }

/* ===== Semaforo (teorico / dashboard) ===== */
.sem { display: inline-block; width: 12px; height: 12px; border-radius: 50%; vertical-align: middle; }
.sem-verde { background: var(--verde); }
.sem-amarillo { background: var(--amarillo-sem); }
.sem-rojo { background: var(--rojo); }
.sem-sin_dato { background: #cbd5e1; }
.chip { padding: 2px 8px; border-radius: 50px; font-size: 0.72rem; font-weight: 600; white-space: nowrap; }
.chip-completo { background: #e7f6ec; color: var(--verde); }
.chip-incompleto { background: #fff3e0; color: #b26a00; }
.chip-sin_conteo { background: #eef2f7; color: var(--gris); }
.pos { color: var(--rojo); font-weight: 600; }   /* faltante (diferencia positiva = falta stock) */
.neg { color: var(--azul); }                      /* sobrante */
.fallback-mark { color: var(--amarillo-sem); font-size: 0.7rem; }

/* ===== Captura de cierre (tactil) ===== */
.captura-item {
  display: grid; grid-template-columns: 1fr 120px; gap: 10px; align-items: center;
  background: #fff; border: 1px solid var(--borde); border-radius: 10px; padding: 10px 14px;
}
.captura-item.contado { border-color: var(--verde); background: #f6fdf8; }
.captura-item .nom { font-weight: 600; }
.captura-item .um { color: var(--gris); font-size: 0.78rem; }
.captura-item input { font-size: 1.2rem; text-align: right; padding: 12px; height: 52px; }
.captura-lista { display: flex; flex-direction: column; gap: 8px; }
.progreso-barra { height: 8px; background: var(--borde); border-radius: 50px; overflow: hidden; }
.progreso-barra > span { display: block; height: 100%; background: linear-gradient(90deg, var(--amarillo), var(--naranja)); transition: width .2s; }

/* ===== Chart ===== */
.chart-box { background: #fff; border-radius: var(--radius); box-shadow: var(--sombra); padding: 16px; }
.chart-box canvas { max-height: 300px; }

/* ===== Modal ===== */
.modal-overlay { position: fixed; inset: 0; background: #0006; display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 50; }
.modal { width: 100%; max-width: 560px; max-height: 90vh; overflow: auto; }
.modal.modal-wide { max-width: 880px; max-height: 96vh; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--borde); }
.modal-head h3 { margin: 0; font-size: 1.1rem; }
.modal-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 12px; }
.form-row { display: flex; flex-direction: column; gap: 4px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }
.row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed #eee; }
.acciones { display: flex; flex-direction: column; }
.modal-body h4 { margin: 12px 0 4px; }

/* ===== Matriz de permisos ===== */
.perm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 16px; margin: 6px 0 12px; }
.perm-grid .check { font-size: 0.85rem; }
@media (max-width: 620px) { .perm-grid { grid-template-columns: 1fr; } }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: var(--tinta); color: #fff; padding: 11px 18px; border-radius: 50px; z-index: 80;
  box-shadow: var(--sombra); font-size: 0.9rem; max-width: 90vw; text-align: center;
}
.toast.error { background: var(--rojo); }
.toast.ok { background: var(--verde); }

/* ===== Responsive ===== */
@media (max-width: 760px) {
  .app-layout { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; padding: 10px; }
  .sidebar-brand { border: none; padding: 0 10px; }
  .nav { flex-direction: row; flex-wrap: wrap; flex: 1; padding: 0; overflow: visible; }
  .nav button { padding: 6px 12px; border-left: none; border-radius: 50px; }
  .nav button.active { background: #ffffff22; }
  .sidebar-foot { border: none; flex-direction: row; align-items: center; padding: 0 10px; }
  .form-grid, .form-grid-3 { grid-template-columns: 1fr; }
  .captura-item { grid-template-columns: 1fr 100px; }
}