:root {
  --verde-900: #0f5132;
  --verde-700: #1a7f49;
  --verde-600: #239157;
  --verde-100: #e8f6ed;
  --verde-050: #f4fbf7;
  --blanco: #ffffff;
  --gris: #2f3e36;
  --borde: #d7e7dc;
  --error: #b42318;
  --ok: #1a7f49;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  background: linear-gradient(150deg, #eef8f2, #e5f2ea);
  color: var(--gris);
}

.contenedor-login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.tarjeta-login {
  width: min(460px, 100%);
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: 1rem;
  padding: 1.2rem;
}

.subtitulo-inst {
  margin: 0 0 0.15rem;
  color: #4f6f5e;
  font-size: 0.9rem;
}

label { display: grid; gap: 0.35rem; margin-bottom: 0.7rem; font-weight: 600; }
input, select {
  width: 100%;
  border: 1px solid var(--borde);
  border-radius: 0.65rem;
  padding: 0.65rem 0.7rem;
  font: inherit;
}
button, .cabecera-admin a {
  border: none;
  border-radius: 0.7rem;
  padding: 0.65rem 0.9rem;
  background: linear-gradient(160deg, var(--verde-600), var(--verde-700));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

button:hover, .cabecera-admin a:hover {
  transform: scale(1.06);
  box-shadow: 0 6px 16px rgba(26, 127, 73, 0.3);
  filter: brightness(1.04);
}

button:active, .cabecera-admin a:active {
  transform: scale(0.95);
}

button:focus-visible, .cabecera-admin a:focus-visible {
  outline: 3px solid rgba(35, 145, 87, 0.3);
  outline-offset: 2px;
}

.error, .ok {
  border-radius: 0.7rem;
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.8rem;
  font-weight: 600;
}
.error { background: #fdecec; color: var(--error); }
.ok { background: #ecf8f0; color: var(--ok); }

.contenedor-admin {
  width: min(1100px, 100% - 2rem);
  margin: 1.2rem auto 2rem;
  display: grid;
  gap: 0.9rem;
}

.cabecera-admin {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: 1rem;
  padding: 1rem;
}

.cabecera-admin nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tarjeta-admin {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: 1rem;
  padding: 1rem;
}

.grilla-admin {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grilla-admin.mini { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.inline-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.inline-check input { width: auto; }

.tabla-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { border-bottom: 1px solid #edf4ef; padding: 0.6rem; text-align: left; vertical-align: top; }

.pie-pagina {
  text-align: center;
  color: #4f6f5e;
  font-size: 0.9rem;
  padding: 0.35rem 0 0.2rem;
}

@media (max-width: 900px) {
  .grilla-admin,
  .grilla-admin.mini { grid-template-columns: 1fr; }
}