:root {
  --primary: #4f46e5;
  --secondary: #0ea5e9;
  --bg: #f1f5f9;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  
  /* Action Button Colors */
  --btn-view: #10b981;    /* Green */
  --btn-edit: #f59e0b;    /* Orange */
  --btn-add: #3b82f6;     /* Blue */
  --btn-promote: #8b5cf6; /* Purple */
  --btn-delete: #ef4444;  /* Red */
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  padding: 20px;
  line-height: 1.5;
}

.app-container { max-width: 1100px; margin: 0 auto; }

/* Header */
.main-header { margin-bottom: 2rem; }
.main-header h1 { font-size: 1.5rem; }
.main-header h1 span { color: var(--primary); font-weight: 800; }

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card { 
  background: var(--card-bg); 
  border-radius: 10px; 
  padding: 20px; 
  border: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.list-area, .details-area { grid-column: span 2; }

/* Form Elements */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 15px; }
.input-group label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 5px; }
input, select { width: 100%; padding: 8px; border: 1px solid var(--border); border-radius: 6px; }

/* Buttons */
button { cursor: pointer; transition: all 0.2s; border: none; font-weight: 600; }

.btn-primary { background: var(--primary); color: white; width: 100%; padding: 10px; border-radius: 6px; }
.btn-secondary { background: var(--text-main); color: white; width: 100%; padding: 10px; border-radius: 6px; }

/* INTERACTIVE ACTION BUTTONS */
.actions { display: flex; gap: 5px; flex-wrap: wrap; }

.btn-sm {
  padding: 6px 12px;
  font-size: 0.75rem;
  border-radius: 4px;
  color: white;
}

/* Color logic based on data-action */
.btn-sm[data-action="view"] { background: var(--btn-view); }
.btn-sm[data-action="edit"] { background: var(--btn-edit); }
.btn-sm[data-action="prefill"] { background: var(--btn-add); }
.btn-sm[data-action="promote"] { background: var(--btn-promote); }
.btn-sm[data-action="delete"] { background: var(--btn-delete); }

/* Hover States: Brighten and lift */
.btn-sm:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

/* Active State: Press down */
.btn-sm:active {
  transform: translateY(0);
  filter: brightness(0.9);
}

/* Table Styling */
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th { text-align: left; font-size: 0.8rem; color: var(--text-muted); padding: 10px; border-bottom: 2px solid var(--border); }
td { padding: 10px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }

.toolbar { display: flex; gap: 10px; margin-bottom: 15px; }
.message { font-size: 0.85rem; margin-top: 10px; font-weight: 600; }
.good { color: var(--btn-view); }
.bad { color: var(--btn-delete); }
.muted { color: var(--text-muted); text-align: center; padding: 20px; }