:root {
  /* Paleta Pastel / Neo-Pop de Alto Contraste */
  --primary: #a3e635;          /* Verde lima brillante */
  --primary-hover: #84cc16;
  --accent: #f472b6;           /* Rosa chicle */
  --bg-main: #f8fafc;          /* Fondo claro pulcro */
  --bg-panel: #ffffff;         /* Paneles blancos puros */
  --bg-input: #f1f5f9;
  --border: #0f172a;          /* Negro casi puro para bordes definidos */
  --text-main: #0f172a;
  --text-muted: #64748b;
  
  /* Estado */
  --danger: #ef4444;
  --danger-bg: #fee2e2;
  --success-bg: #dcfce7;
  
  /* Firma Neobrutalista: Sombras duras y marcadas */
  --shadow-sm: 3px 3px 0px #0f172a;
  --shadow-md: 5px 5px 0px #0f172a;
  --shadow-lg: 8px 8px 0px #0f172a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 30px auto;
  padding: 0 20px;
}

.grid {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 28px;
  align-items: start;
}

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

/* Navbar */
.navbar {
  background: var(--bg-panel);
  border: 3px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 30px;
  margin: 20px 20px 0 20px;
  flex-wrap: wrap;
  gap: 15px;
  box-shadow: var(--shadow-md);
}

.brand {
  font-weight: 900;
  font-size: 1.4em;
  text-decoration: none;
  color: var(--text-main);
  background: var(--primary);
  padding: 4px 12px;
  border: 2px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  letter-spacing: -0.5px;
}

.nav-links { display: flex; flex-wrap: wrap; gap: 12px; }
.nav-links a {
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.9em;
  font-weight: 700;
  padding: 6px 12px;
  border: 2px solid transparent;
  border-radius: 6px;
  transition: all 0.15s ease;
}
.nav-links a:hover {
  background: #e2e8f0;
  border-color: var(--border);
}

/* Encabezados */
h1 { 
  margin: 0 0 5px; 
  font-size: 2em; 
  font-weight: 900; 
  letter-spacing: -1px;
}
.subtitle { color: var(--text-muted); margin: 0; font-size: 0.95em; font-weight: 500; }

/* Dashboard Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 18px;
  margin-top: 25px;
}

.card {
  background: var(--bg-panel);
  border: 3px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-decoration: none;
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-md);
  background: #fef08a; /* Destello amarillo pastel al pasar el cursor */
}

.card h3 { 
  margin: 0 0 8px; 
  font-size: 0.85em; 
  font-weight: 800; 
  color: var(--text-muted); 
  text-transform: uppercase;
}
.card .count { font-size: 2.4em; font-weight: 900; color: var(--text-main); }

/* Paneles & Formularios */
.panel {
  background: var(--bg-panel);
  border: 3px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.panel h2 {
  margin: 0 0 18px;
  font-size: 1.2em;
  font-weight: 800;
  border-bottom: 3px solid var(--border);
  padding-bottom: 12px;
}

.field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.85em; font-weight: 700; color: var(--text-main); }

.field input,
.field select {
  padding: 11px 14px;
  background: var(--bg-input);
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 0.9em;
  font-weight: 600;
  color: var(--text-main);
  transition: all 0.15s ease;
}

.field input:focus,
.field select:focus {
  outline: none;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.error-msg { color: var(--danger); font-size: 0.8em; font-weight: 700; }

/* Botones */
.actions { display: flex; gap: 10px; margin-top: 20px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.9em;
  font-weight: 800;
  border: 2.5px solid var(--border);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.1s ease;
}

.btn:active {
  transform: translate(3px, 3px);
  box-shadow: 0px 0px 0px var(--border);
}

.btn-primary { 
  background: var(--primary); 
  color: var(--text-main); 
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary { 
  background: var(--accent); 
  color: var(--text-main); 
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.8em;
  margin-right: 4px;
  background: #fff;
  border: 2px solid var(--border);
  box-shadow: 2px 2px 0px var(--border);
}

.btn-danger { 
  background: #fca5a5; 
  color: var(--text-main); 
}

/* Tabla */
.table-wrap {
  overflow-x: auto;
  border-radius: 10px;
  border: 3px solid var(--border);
  box-shadow: var(--shadow-sm);
}

table { width: 100%; border-collapse: collapse; font-size: 0.9em; text-align: left; background: #fff; }
th, td { padding: 12px 16px; border-bottom: 2px solid var(--border); white-space: nowrap; }

th { 
  background: #e2e8f0; 
  color: var(--text-main); 
  font-weight: 800; 
  border-bottom: 3px solid var(--border);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: #f1f5f9; }

.empty { text-align: center; color: var(--text-muted); padding: 30px; font-weight: 600; }

/* Alertas & Footer */
.alert {
  padding: 14px 18px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 0.9em;
  font-weight: 700;
  border: 2.5px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.alert-ok { background: var(--success-bg); color: #15803d; }
.alert-error { background: var(--danger-bg); color: #b91c1c; }

.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85em;
  font-weight: 600;
  padding: 30px 0;
  border-top: 3px solid var(--border);
  margin-top: 50px;
}