:root {
  --color-primario: #2c5f2d;
  --color-primario-claro: #4f8a4f;
  --color-fondo: #f4f6f4;
  --color-texto: #222;
  --color-borde: #d6dcd6;
  --color-blanco: #fff;
  --radio: 8px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--color-fondo);
  color: var(--color-texto);
}
header.app-header {
  background: var(--color-primario);
  color: white;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
header.app-header a { color: white; text-decoration: none; }
header.app-header .titulo { font-size: 1.2rem; font-weight: 600; }
nav.app-nav {
  background: var(--color-primario-claro);
  padding: 8px 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
nav.app-nav a { color: white; text-decoration: none; font-size: 0.92rem; padding: 4px 0; }
nav.app-nav a:hover { text-decoration: underline; }
main.app-main { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.card {
  background: var(--color-blanco);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 24px;
  margin-bottom: 20px;
}
h1, h2 { color: var(--color-primario); }
form .form-row { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
form .form-group { flex: 1; min-width: 200px; }

/* Labels ocultas — el texto va como placeholder dentro del campo */
form label { display: none; }

/* Inputs grandes y en negrita para mejor visibilidad */
form input,
form select,
form textarea {
  width: 100%;
  padding: 11px 13px;
  border: 2px solid #000;
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #222;
}

/* Placeholders negros y bien visibles */
form input::placeholder,
form textarea::placeholder {
  font-weight: 600;
  font-size: 1rem;
  color: #000;
}

form textarea { resize: vertical; }
button, .btn {
  background: var(--color-primario);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radio);
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover, .btn:hover { background: var(--color-primario-claro); }
.btn-secundario { background: #888; }
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
table th, table td {
  border: 2px solid #000;
  padding: 8px 10px;
  font-size: 0.88rem;
  text-align: left;
}
table th { background: #eef2ee; }
.alert { padding: 10px 16px; border-radius: 6px; margin-bottom: 16px; }
.alert-success { background: #e0f3e0; color: #205020; }
.alert-error { background: #fbe2e2; color: #7a1f1f; }
.login-box { max-width: 380px; margin: 80px auto; }
.resumen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.resumen-tile {
  background: white;
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 16px;
  text-align: center;
}
.resumen-tile .valor { font-size: 1.6rem; font-weight: 700; color: var(--color-primario); }
.resumen-tile .etiqueta { font-size: 0.82rem; color: #666; }
.tabla-wrapper-scroll { overflow-x: auto; max-width: 100%; }
.scrollbar-fija {
  position: fixed;
  bottom: 0;
  height: 16px;
  overflow-x: scroll;
  overflow-y: hidden;
  background: #eef2ee;
  border-top: 1px solid var(--color-borde);
  z-index: 50;
  display: none;
}
.scrollbar-fija-inner { height: 1px; }