* {
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

html, body {
  margin: 0;
  height: 100%;
}

body {
  background: linear-gradient(135deg, #020617, #0f172a, #1e1b4b);
  color: #e5e7eb;
}

/* GLASS EFFECT */
.glass {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(14px);
  border:1px solid;
  border-radius: 25px;
}

/* HEADER */
.header {
  text-align: center;
  margin: 20px;
  padding: 24px;
  background: transparent;
  border:none;
}

.header img {
  width: 120px;
}

.header h1 {
  margin: 10px 0 4px;
  font-size: 2rem;
}

/* LAYOUT */
.container {
  max-width: 1000px;
  margin: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.panel {
  padding: 20px;
}

.chart-box {
  background: white;
  color: black;
}

/* FORM */
label {
  font-weight: bold;
  margin-top: 14px;
  display: block;
}

input, select {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border-radius: 8px;
  border: none;
}

.data-row {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.data-row input {
  flex: 1;
}

button {
  width: 100%;
  margin-top: 14px;
  padding: 12px;
  border-radius: 10px;
  border: none;
  font-weight: bold;
  cursor: pointer;
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: white;
}

/* FOOTER */
.footer {
  text-align: center;
  margin: 20px;
  padding: 12px;
}

/* PRINT – SINGLE PAGE */
@media print {
  body * {
    visibility: hidden;
  }
  #printArea, #printArea * {
    visibility: visible;
  }
  #printArea {
    position: absolute;
    inset: 0;
    padding: 40px;
    transform: scale(0.95);
  }
}