/* UNIVERSITY RESEARCH THEME */
/* Professional, readable, clean colors */

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: #f5f6fa;
  color: #1e1e1e;
}

/* Header */
.header {
  text-align: center;
  padding: 25px;
  background: #1e3a8a; /* Navy blue */
  color: white;
}
.header h1 { margin: 0; font-size: 30px; }
.subtitle { margin-top: 6px; opacity: 0.9; }

/* Main layout */
.container {
  max-width: 1150px;
  margin: 25px auto;
  display: grid;
  grid-template-columns: 300px auto;
  gap: 22px;
  padding: 10px;
}

/* Cards */
.card {
  background: white;
  border-radius: 10px;
  padding: 20px;
  border: 1px solid #dcdcdc;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.controls h2 {
  margin-top: 0;
  color: #1e3a8a;
}

.controls label {
  font-size: 14px;
  font-weight: 600;
  display: block;
  margin-top: 12px;
}

.controls input, .controls select {
  width: 100%;
  padding: 9px;
  border-radius: 6px;
  border: 1px solid #ccc;
  margin-top: 6px;
  background: #fbfbfb;
}

.btn {
  width: 100%;
  padding: 10px;
  margin-top: 15px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.primary {
  background: #1d4ed8;
  color: white;
}
.secondary {
  background: #fbbf24;
  color: #111;
}

/* Chart */
.chart-card h2 {
  margin-top: 0;
  color: #1e3a8a;
}

canvas {
  background: #ffffff;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

/* Footer */
.footer {
  text-align: center;
  margin: 25px 0;
  color: #444;
}