body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111827;
  color: #f9fafb;
  display: flex;
  justify-content: center;
  padding: 30px;
}

.card {
  width: 1500px;
  background: #1f2937;
  padding: 30px;
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

h1, h2 {
  color: #93c5fd;
}

p {
  font-size: 15px;
  line-height: 1.35;
}

strong {
  color: #facc15;
}

hr {
  border: none;
  border-top: 1px solid #374151;
  margin: 25px 0;
}

.stats {
  background: #111827;
  padding: 18px;
  border-radius: 14px;
}

.controls {
  margin-top: 18px;
}

select, button {
  padding: 10px;
  margin: 6px;
  border-radius: 8px;
  border: none;
}

button {
  cursor: pointer;
}

.big-counters {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 25px;
}

.big-counter {
  background: #020617;
  border: 2px solid #334155;
  border-radius: 18px;
  padding: 22px;
  text-align: center;
}

.big-counter h2 {
  margin-top: 0;
  font-size: 22px;
}

.big-counter div {
  margin: 14px 0;
}

.big-counter span {
  display: block;
  font-size: 34px;
  font-weight: bold;
  color: #facc15;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.big-counter small {
  display: block;
  margin-top: 5px;
  color: #cbd5e1;
  font-size: 16px;
}

.scenarios {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.scenario {
  background: #111827;
  padding: 18px;
  border-radius: 14px;
}

.scenario h2 {
  font-size: 19px;
  min-height: 70px;
}

.indicator {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid #374151;
  padding: 7px 0;
  font-size: 14px;
}

.indicator span:first-child {
  color: #d1d5db;
}

.indicator strong {
  text-align: right;
}

.warning {
  color: #fca5a5;
  font-size: 13px;
  margin-top: 18px;
}

@media (max-width: 1200px) {
  body {
    padding: 15px;
  }

  .card {
    width: 100%;
  }

  .big-counters,
  .scenarios {
    grid-template-columns: 1fr;
  }

  .big-counter span {
    font-size: 38px;
  }
}