:root {
  color-scheme: light;
  --brand-primary: #0c63e4;
  --brand-primary-dark: #06357a;
  --brand-secondary: #0ea5a4;
  --brand-bg: #f5f8ff;
  --brand-card: #ffffff;
  --brand-text: #101214;
  --brand-muted: #4a5565;
  --brand-line: #dce5f2;
  --brand-ok: #166534;
  --layout-card-radius: 16px;
  --layout-content-max-width: 920px;
  --layout-space: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(160deg, #f8fbff 0%, var(--brand-bg) 45%, #eef3ff 100%);
  color: var(--brand-text);
  padding: 20px;
}

.top,
.wrap,
.card {
  width: min(100%, var(--layout-content-max-width));
  margin-left: auto;
  margin-right: auto;
}

.top {
  margin-bottom: var(--layout-space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--layout-space);
}

.top--narrow,
.wrap,
.card {
  max-width: 760px;
}

.top--inside {
  width: 100%;
  margin-bottom: 10px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--brand-primary-dark);
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #d3e2f9;
  box-shadow: 0 6px 16px rgba(12, 99, 228, 0.22);
}

.card {
  background: var(--brand-card);
  border: 1px solid var(--brand-line);
  border-radius: var(--layout-card-radius);
  padding: calc(var(--layout-space) + 8px);
  box-shadow: 0 12px 34px rgba(6, 53, 122, 0.08);
}

h1 { margin: 0 0 10px; font-size: clamp(1.2rem, 2.8vw, 1.8rem); }
h2 { margin-top: 18px; font-size: 1rem; }
p { color: var(--brand-muted); line-height: 1.45; }
ul { padding-left: 18px; }
li { margin: 8px 0; }

.links,
.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.btn,
button,
.btn-link {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--brand-line);
  text-decoration: none;
  color: var(--brand-text);
  background: #fff;
  font-weight: 600;
}

.btn.primary,
button,
.btn-link {
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
}

button.secondary { background: linear-gradient(135deg, #0f766e, #0d9488); }
button.ghost { background: #334155; }

.tag {
  display: inline-block;
  margin-top: 8px;
  font-size: .8rem;
  background: #dbeafe;
  color: #1e3a8a;
  padding: 4px 10px;
  border-radius: 999px;
}

code {
  background: #f1f5f9;
  border: 1px solid var(--brand-line);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: .9em;
}

.field { margin: 10px 0; }
.field label { display:block; font-size:.85rem; color: var(--brand-muted); margin-bottom:4px; }
.field input {
  width: 100%;
  border:1px solid var(--brand-line);
  border-radius:10px;
  padding:10px 12px;
  font-size:.95rem;
}

.locale-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.locale-switcher__label { color: #607086; }

.locale-chip {
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid #c3d3eb;
  background: #fff;
  color: #0f172a;
}

.locale-chip.is-active {
  border-color: var(--brand-primary-dark);
  background: var(--brand-primary-dark);
  color: #fff;
}

#tokenHint { margin-top: 8px; font-size: .82rem; word-break: break-all; color: var(--brand-ok); }
#output {
  margin-top: 10px;
  background: #0b1220;
  color: #dbeafe;
  border-radius: 10px;
  padding: 12px;
  font-size: .82rem;
  overflow: auto;
  min-height: 80px;
}

.muted { color:#64748b; font-size:.92rem; margin-top:18px; }

@media (max-width: 720px) {
  body { padding: 12px; }
  .card { padding: 14px; border-radius: 12px; }
  .top { align-items: flex-start; flex-direction: column; }
  .locale-switcher { justify-content: flex-start; }
  .btn, button, .btn-link { width: 100%; text-align: center; }
}