:root {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #1f2937;
  --text-muted: #6b7280;

  --primary: #1e3a8a;     /* azul prof */
  --primary-soft: #38bdf8; /* celeste */
  --border: #e5e7eb;
}
body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  display: flex; 
  justify-content: center; 
  align-items: center; 
  height: 100vh; /* ocupa toda la pantalla */ 
  margin: 0;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1.2rem;
  background: white;
  border-bottom: 1px solid var(--border);
}

.search {
  flex: 1;
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.app {
  display: flex;
}

.sidebar {
  width: 60px;
  background: white;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.sidebar a {
  font-size: 1.3rem;
  cursor: pointer;
}

.content {
  padding: 1.5rem;
  flex: 1;
}

.kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.card {
  background: white;
  padding: 1rem;
  border-radius: 10px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 1.2rem;
  color: #1e3a8a; /* azul profesional */
}

.logo img {
  width: 34px;
  height: 34px;
}
.login-box { 
  background: #fff; 
  padding: 2rem; 
  border-radius: 8px; 
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); 
  width: 100%; 
  max-width: 360px; 
  text-align: center; 
  } 
.login-box h1 { 
  margin-bottom: 1.5rem; 
  font-size: 1.4rem; 
  color: #333; 
  } 
  .login-box input { 
    width: 100%; 
    padding: 0.6rem; 
    margin: 0.5rem 0; 
    border: 1px solid #ccc; 
    border-radius: 4px; 
    } 
.login-box button { 
  width: 100%; 
  padding: 0.7rem; 
  background: #0077cc; 
  color: #fff; 
  border: none; 
  border-radius: 4px; 
  font-weight: bold; 
  cursor: pointer; 
  } 
  .login-box button:hover { 
    background: #005fa3; 
    } 
.error { color: #b00; 
margin-bottom: 
1rem; 
}