:root {
  --verde: #1f7a4d;
  --verde-osc: #145c39;
  --gris-bg: #f4f6f5;
  --gris-borde: #dfe3e1;
  --texto: #23302b;
  --naranja: #d97b1f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--gris-bg);
  color: var(--texto);
}

.topbar {
  background: var(--verde-osc);
  color: #fff;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.topbar a { color: #fff; text-decoration: none; }
.topbar .marca { font-weight: 700; font-size: 1.1rem; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.92rem;
  opacity: 0.9;
}
.nav a:hover, .nav a.activo { background: rgba(255,255,255,0.15); opacity: 1; }
.userbox { font-size: 0.85rem; opacity: 0.9; display:flex; align-items:center; gap:10px; }

.contenedor { max-width: 1100px; margin: 24px auto; padding: 0 16px; }

.card {
  background: #fff;
  border: 1px solid var(--gris-borde);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 18px;
}

h1, h2, h3 { color: var(--verde-osc); }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.15rem; }

.grid-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 14px; margin-bottom: 18px; }
.kpi { background: #fff; border: 1px solid var(--gris-borde); border-radius: 10px; padding: 16px; text-align: center; }
.kpi .valor { font-size: 1.9rem; font-weight: 700; color: var(--verde); }
.kpi .etiqueta { font-size: 0.82rem; color: #5b6a63; margin-top: 4px; }

.barra-progreso { background: #e6eae8; border-radius: 8px; height: 22px; overflow: hidden; margin-top: 8px; }
.barra-progreso .relleno { background: var(--verde); height: 100%; color: #fff; font-size: 0.78rem; display:flex; align-items:center; justify-content:flex-end; padding-right:8px; transition: width .3s; }
.barra-progreso .relleno.completo { background: var(--naranja); }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--gris-borde); text-align: left; }
th { background: #f0f3f1; color: var(--verde-osc); font-weight: 600; }
tr:hover td { background: #fafcfb; }

.btn {
  display: inline-block;
  background: var(--verde);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
}
.btn:hover { background: var(--verde-osc); }
.btn-sec { background: #fff; color: var(--verde-osc); border: 1px solid var(--verde); }
.btn-sec:hover { background: #eef6f1; }
.btn-peligro { background: #b7402f; }
.btn-peligro:hover { background: #93301f; }

label { display:block; font-size: 0.85rem; margin: 10px 0 4px; font-weight: 600; color:#3c4a44;}
input, select, textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--gris-borde);
  border-radius: 6px;
  font-size: 0.92rem;
  font-family: inherit;
}
.fila-materiales { display:grid; grid-template-columns: 2fr 1fr auto; gap:10px; align-items:end; margin-bottom:8px; }

.alerta { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 0.9rem; }
.alerta-ok { background: #e4f4ea; color: var(--verde-osc); border: 1px solid #b7e0c6; }
.alerta-error { background: #fbe6e2; color: #93301f; border: 1px solid #f0bcb0; }

.login-wrap { min-height: 100vh; display:flex; align-items:center; justify-content:center; background: linear-gradient(135deg, var(--verde-osc), var(--verde)); }
.login-card { background:#fff; padding: 34px 32px; border-radius: 12px; width: 100%; max-width: 360px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.login-card h1 { text-align:center; margin-bottom: 4px; }
.login-card p.sub { text-align:center; color:#6b7a73; font-size:0.85rem; margin-top:0; margin-bottom:20px;}

.badge { display:inline-block; padding: 2px 9px; border-radius: 20px; font-size: 0.75rem; font-weight:600; }
.badge-verde { background:#e4f4ea; color: var(--verde-osc); }
.badge-naranja { background:#fbeee0; color: var(--naranja); }

@media (max-width: 640px) {
  .fila-materiales { grid-template-columns: 1fr; }
  .nav a { padding: 6px 9px; font-size: 0.85rem; }
}