:root {
  --bg0: #0b1020;
  --bg1: #1b1b3a;
  --sun0: #ffb86b;
  --sun1: #ff5d5d;
  --ink: #eef2ff;
  --muted: rgba(238, 242, 255, 0.72);
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.09);
  --border: rgba(255, 255, 255, 0.14);
  --shadow: rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 12% 18%, rgba(255, 184, 107, 0.20), transparent 55%),
    radial-gradient(1000px 600px at 84% 22%, rgba(255, 93, 93, 0.20), transparent 55%),
    radial-gradient(900px 600px at 50% 100%, rgba(91, 115, 255, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  font-family: "Manrope", ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
}

.wrap {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 28px 18px 60px;
}

.top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.brand h1 {
  margin: 0;
  font-family: "Fraunces", ui-serif, Georgia, serif;
  font-weight: 600;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.02em;
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
}

.badge {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(0,0,0,0.18);
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 16px 40px var(--shadow);
  overflow: hidden;
}

.card-inner {
  padding: 18px;
}

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

@media (min-width: 860px) {
  .grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 18px;
  }
}

label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

input {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.22);
  color: var(--ink);
  outline: none;
}

input:focus {
  border-color: rgba(255, 184, 107, 0.55);
  box-shadow: 0 0 0 4px rgba(255, 184, 107, 0.18);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.btn {
  width: 100%;
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(90deg, rgba(255,184,107,0.95), rgba(255,93,93,0.95));
  color: #141523;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  margin-top: 10px;
  min-height: 20px;
  color: rgba(255, 255, 255, 0.80);
}

.result {
  animation: fadeUp 320ms ease-out;
}

.is-hidden { display: none; }

.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 6px 12px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.k { color: var(--muted); }

.v {
  font-weight: 700;
}

pre {
  margin: 14px 0 0;
  padding: 14px;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.10);
  overflow: auto;
  color: rgba(238, 242, 255, 0.90);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}