:root {
  --bg: #06080f;
  --card: rgba(20, 24, 34, 0.9);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #f0f3ff;
  --muted: #a7adc1;
  --accent-a: #5f7aff;
  --accent-b: #cb52ff;
  --accent-c: #5b3ae8;
  --danger: #ff4a64;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Inter", system-ui, sans-serif;
  min-height: 100%;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 90% -10%, rgba(203, 82, 255, 0.35), transparent 32%),
    radial-gradient(circle at 10% 110%, rgba(95, 122, 255, 0.3), transparent 38%);
}

.app {
  max-width: 760px;
  margin: 0 auto;
  padding: 18px 14px 26px;
}

.hero {
  background: linear-gradient(95deg, rgba(95, 122, 255, 0.95), rgba(203, 82, 255, 0.95));
  border-radius: 22px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 16px 34px rgba(104, 76, 255, 0.35);
}

.hero h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0.2px;
}

.hero p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.section {
  margin-top: 14px;
}

.section-title {
  margin: 0 0 10px;
  font-size: 15px;
  color: #d4daf1;
  letter-spacing: 0.25px;
  text-transform: uppercase;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.card {
  position: relative;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 12px;
  min-height: 124px;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  background: rgba(95, 122, 255, 0.18);
  color: #d8deff;
  margin-bottom: 9px;
}

.card h3 {
  margin: 0;
  font-size: 18px;
}

.card p {
  margin: 7px 0 0;
  font-size: 13px;
  color: var(--muted);
  min-height: 34px;
}

.price {
  margin-top: 11px;
  font-size: 16px;
  font-weight: 700;
  color: #f8dbff;
}

.buy-btn {
  margin-top: 10px;
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 9px 10px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  background: linear-gradient(95deg, var(--accent-a), var(--accent-b));
  cursor: pointer;
}

.buy-btn:disabled {
  opacity: 0.58;
  cursor: default;
}

.toolbar {
  margin-top: 14px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 12px;
}

.field-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.text-input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  background: rgba(8, 11, 18, 0.9);
  color: #fff;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
}

.hint {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.status {
  margin-top: 10px;
  font-size: 13px;
  color: #c8ceea;
  min-height: 18px;
}

.status.error {
  color: var(--danger);
}

.status.ok {
  color: #59e3aa;
}

@media (max-width: 460px) {
  .grid {
    grid-template-columns: 1fr;
  }
}