:root {
  --bg: #0b0f17;
  --panel: #141a24;
  --panel-2: #1a2130;
  --text: #e6ebf2;
  --muted: #8a94a6;
  --accent: #635bff;
  --accent-hi: #7b74ff;
  --success: #2bb673;
  --error: #e5484d;
  --radius: 10px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid #1e2634;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(99, 91, 255, 0.15);
}

.app-nav {
  display: flex;
  gap: 16px;
}

.app-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.app-nav a:hover { color: var(--text); }

.container {
  max-width: 780px;
  margin: 32px auto;
  padding: 0 24px;
  display: grid;
  gap: 20px;
}

.card {
  background: var(--panel);
  border: 1px solid #1e2634;
  border-radius: var(--radius);
  padding: 20px 24px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.card.muted {
  background: var(--panel-2);
  color: var(--muted);
}

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

.status-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 8px 16px;
  margin: 0;
}

.status-grid dt { color: var(--muted); font-size: 14px; }
.status-grid dd { margin: 0; font-size: 14px; }

.mono { font-family: var(--mono); font-size: 13px; color: var(--muted); }

.chip {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(99, 91, 255, 0.15);
  color: var(--accent-hi);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chip[data-version="v2"] {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
}

.order-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}

.order-form label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }

.order-form select,
.order-form input {
  background: var(--panel-2);
  border: 1px solid #2a3344;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}

.order-form button {
  padding: 10px 18px;
  border: 0;
  background: var(--accent);
  color: white;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms;
}

.order-form button:hover { background: var(--accent-hi); }
.order-form button:disabled { opacity: 0.6; cursor: progress; }

.result {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
}
.result.ok    { background: rgba(43, 182, 115, 0.1); color: #9fe5c3; border: 1px solid rgba(43, 182, 115, 0.3); }
.result.err   { background: rgba(229, 72, 77, 0.1);  color: #f0a4a7; border: 1px solid rgba(229, 72, 77, 0.3); }

.app-footer {
  text-align: center;
  padding: 24px 16px;
  color: var(--muted);
  font-size: 12px;
}
.app-footer a { color: var(--muted); }