:root {
  --bg-color: #222;
  --card-bg-color: #fdfdfd;
  --text-color: #333;
  --border-color: #dcdfe6;
  --grey-text: #888;
  --highlight-bg: #efefef;
  --green-highlight-bg: #f0f9eb;
  --yellow-highlight-bg: #fef7e9;
  --yellow-highlight-border: #fce1b3;
}

body {
  font-family: Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 1rem;
  min-height: 100vh;
  box-sizing: border-box;
  margin: 0;
}

a {
  color: var(--grey-text);
  text-decoration: none;
}

.calc-container {
  background-color: var(--card-bg-color);
  margin: 0 auto;
  padding: 1.5rem 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 600px;
  touch-action: manipulation;
}

header {
  text-align: center;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

header p {
  margin: 0.5rem 0.5rem 0 0.5rem;
  font-size: 0.9rem;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.form-grid {
  display: grid;
  gap: 0.125rem;
}

.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.275rem;
  border-radius: 8px;
  border: 1px solid transparent;
}

label {
  flex-basis: 60%;
  padding-right: 1rem;
  font-size: 1rem;
}

input,
output {
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  text-align: right;
  flex-basis: 40%;
  box-sizing: border-box;
  width: 100%;
}

input[type="number"] {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  outline: none;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] {
  -moz-appearance: textfield;
}

input[type="number"]:focus {
  border-color: #409eff;
  box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.2);
}

.input-highlight {
  background-color: var(--highlight-bg);
}

.input-highlight-green {
  background-color: var(--green-highlight-bg);
}

label,
input,
.form-row.display-row,
.form-row.display-row span {
  font-weight: 700;
}

.primary-input-row label,
.primary-input-row input {
  color: var(--text-color);
}

.form-row.display-row span#takeProfitPrice {
  color: green;
}

.form-row.display-row output#takeProfitPrice {
  color: green;
}

.form-row.display-row span#stopLossPrice,
.form-row.display-row output#stopLossPrice {
  color: red;
}

.padded-top {
  padding-top: 0.5rem;
}

.reset-button {
  display: block;
  margin: 0.25rem auto;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--text-color);
  background-color: var(--card-bg-color);
}

.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1rem 0;
}

footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  color: var(--grey-text);
  line-height: 1.6;
  text-align: center;
}

footer p {
  margin: 0 0.5rem 0 0.5rem;
  font-size: 0.725rem;
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.3rem;
  }
}