@import url('https://fonts.googleapis.com/css2?family=Fraunces:wght@600&family=Space+Grotesk:wght@400;600&display=swap');

:root {
  --ink: #151515;
  --muted: #5a5a5a;
  --paper: #f5f1ea;
  --accent: #d75a3a;
  --accent-soft: #f5c6b6;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(800px 400px at 20% 20%, #f9e8d9 0%, transparent 60%),
    radial-gradient(700px 500px at 80% 80%, #f1d2bf 0%, transparent 55%),
    var(--paper);
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, -apple-system, sans-serif;
}

.card {
  width: min(700px, 92vw);
  padding: 36px 32px 28px;
  border-radius: 24px;
  background: #fff9f3;
  box-shadow: var(--shadow);
  border: 1px solid #edd7c9;
  animation: rise 600ms ease-out;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  color: var(--muted);
}

.field span {
  font-size: 14px;
}

input {
  font: 600 20px/1.2 "Space Grotesk", system-ui, sans-serif;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid #e3cbbb;
  background: #fff;
  color: var(--ink);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(215, 90, 58, 0.18);
}

.result {
  display: block;
  margin-top: 26px;
  font-family: "Fraunces", serif;
  font-size: clamp(32px, 6vw, 56px);
  text-align: center;
  color: var(--accent);
  background: #fff0e8;
  border-radius: 18px;
  padding: 18px 12px;
  letter-spacing: 0.02em;
  animation: pulse 900ms ease-in-out;
}

.direction {
  margin-top: 12px;
  text-align: center;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.calculation {
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.01em;
  line-height: 1.6;
  display: grid;
  gap: 10px;
}

.calc-block {
  background: #fff7f0;
  border: 1px solid #edd7c9;
  padding: 8px 12px;
  border-radius: 10px;
  text-align: left;
}

.calc-title {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.calc-line {
  font-variant-numeric: tabular-nums;
}

.calc-indent {
  padding-left: 16px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% { transform: scale(0.98); }
  100% { transform: scale(1); }
}

@media (max-width: 520px) {
  .grid {
    grid-template-columns: 1fr;
  }
}