/* ===== Base layout ===== */
body {
  font-family: "Orbitron", sans-serif;
  background: radial-gradient(circle at top left, #1e0033, #000010 60%);
  color: #e0d6ff;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 2rem;
}

/* ===== Glass panel container ===== */
.dashboard {
  background: rgba(30, 0, 50, 0.6);
  border: 1px solid rgba(255, 0, 255, 0.2);
  box-shadow: 0 0 40px rgba(255, 0, 255, 0.15);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  padding: 2rem;
  width: 900px;
  max-width: 95%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* ===== Headings ===== */
h1 {
  color: #ff69b4;
  font-size: 2rem;
  letter-spacing: 1px;
  text-shadow: 0 0 10px #ff00ff, 0 0 20px #00ffff;
  text-align: center;
  grid-column: span 2;
}

/* ===== Control panel ===== */
.controls {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

label {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-bottom: 0.3rem;
}

/* ===========================
   Neon Input Field Styling
   =========================== */
input[type="number"] {
  background: rgba(20, 0, 40, 0.6);
  border: 1px solid rgba(255, 0, 255, 0.4);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  color: #e0d6ff;
  font-family: "Orbitron", sans-serif;
  font-size: 0.9rem;
  outline: none;
  width: 100%;
  transition: all 0.25s ease;
  box-shadow: inset 0 0 6px rgba(255, 0, 255, 0.15),
    0 0 8px rgba(0, 255, 255, 0.05);
}

/* glowing border + color shift when active */
input[type="number"]:focus {
  border-color: #00ffff;
  box-shadow: 0 0 10px #00ffff, 0 0 20px rgba(255, 0, 255, 0.3),
    inset 0 0 10px rgba(0, 255, 255, 0.2);
  background: rgba(0, 0, 40, 0.7);
}

/* subtle hover highlight */
input[type="number"]:hover {
  border-color: #ff00ff;
  box-shadow: 0 0 10px #ff00ff44;
}

/* remove spin buttons */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="range"] {
  width: 100%;
  accent-color: #ff00ff;
}

input[type="range"]::-webkit-slider-thumb {
  background: #ff00ff;
  border: 1px solid #fff;
}

.slider-value {
  margin-left: 10px;
  color: #ff00ff;
  font-weight: bold;
  text-shadow: 0 0 5px #ff00ff;
}

/* ===== Result panel ===== */
#amortChart {
  background: radial-gradient(
    circle at center,
    rgba(255, 0, 255, 0.1),
    transparent 70%
  );
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.results {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(10, 0, 20, 0.6);
  border-radius: 15px;
  padding: 1.5rem;
  text-align: center;
}

.result-box {
  margin-top: 1rem;
  font-size: 1.2rem;
  text-shadow: 0 0 6px #00ffff;
}

.highlight {
  color: #00ffff;
  font-weight: bold;
}

/* ===== Buttons ===== */
button {
  background: linear-gradient(90deg, #ff00ff, #00ffff);
  border: none;
  color: white;
  font-family: "Orbitron", sans-serif;
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: bold;
  letter-spacing: 0.5px;
  transition: transform 0.2s ease, box-shadow 0.3s;
}
button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 15px #ff00ff;
}

/* ===== Neon footer line ===== */
footer {
  margin-top: 2rem;
  color: #999;
  font-size: 0.8rem;
  text-shadow: 0 0 6px #ff00ff;
}