:root {
  --bg: #07111f;
  --card: #0d1b2f;
  --card-2: #102238;
  --text: #f4f8ff;
  --muted: #9db1cf;
  --blue: #2f80ff;
  --blue-2: #56a5ff;
  --green: #20d18f;
  --red: #ff5263;
  --border: rgba(255, 255, 255, 0.09);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(47, 128, 255, 0.18), transparent 34%),
    radial-gradient(circle at top right, rgba(32, 209, 143, 0.10), transparent 28%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 18px;
}

.card {
  background: linear-gradient(180deg, rgba(16, 34, 56, 0.96), rgba(13, 27, 47, 0.96));
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 22px;
}

.eyebrow {
  color: var(--blue-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin: 0 0 8px;
  font-size: 0.8rem;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: 10px;
  line-height: 1;
}

.subtext {
  color: var(--muted);
  max-width: 680px;
  margin-bottom: 0;
  line-height: 1.55;
}

.status-pill {
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(47, 128, 255, 0.15);
  border: 1px solid rgba(47, 128, 255, 0.35);
  color: var(--blue-2);
  font-weight: 800;
  white-space: nowrap;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.calculator,
.results,
.info-card {
  padding: 24px;
}

form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

small {
  color: #7f93b2;
  line-height: 1.4;
}

input,
select {
  width: 100%;
  background: #071323;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 15px;
  font-size: 1rem;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(47, 128, 255, 0.16);
}

.button-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 10px;
  margin-top: 8px;
}

button {
  border: 0;
  border-radius: 14px;
  padding: 14px 12px;
  cursor: pointer;
  background: #172b45;
  color: var(--text);
  font-weight: 800;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

button:hover { transform: translateY(-1px); }
button:active { transform: translateY(0); opacity: 0.9; }

button.primary {
  background: linear-gradient(135deg, var(--blue), #1559d1);
}

.result-main {
  padding: 20px;
  border-radius: 18px;
  text-align: center;
  font-size: 1.8rem;
  font-weight: 900;
  background: rgba(32, 209, 143, 0.13);
  color: var(--green);
  border: 1px solid rgba(32, 209, 143, 0.28);
  margin-bottom: 18px;
}

.result-main.danger {
  background: rgba(255, 82, 99, 0.13);
  color: var(--red);
  border-color: rgba(255, 82, 99, 0.35);
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.metric {
  background: rgba(7, 19, 35, 0.75);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
}

.metric.wide { grid-column: span 2; }

.metric span,
.tracker-output span {
  color: var(--muted);
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.metric strong,
.tracker-output strong {
  font-size: clamp(1.35rem, 4vw, 2.1rem);
  letter-spacing: -0.03em;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.info-card p,
.info-card li {
  color: var(--muted);
  line-height: 1.5;
}

ul { padding-left: 20px; margin-bottom: 0; }

.payout-card {
  display: grid;
  gap: 12px;
}

.tracker-output {
  background: rgba(47, 128, 255, 0.12);
  border: 1px solid rgba(47, 128, 255, 0.28);
  border-radius: 16px;
  padding: 16px;
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 20px;
}

@media (max-width: 900px) {
  .grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .app-shell { width: min(100% - 20px, 1180px); padding-top: 14px; }
  .hero,
  .calculator,
  .results,
  .info-card { padding: 18px; border-radius: 18px; }
  .button-row { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .metric.wide { grid-column: span 1; }
}