:root {
  --bg: #0b0d17;
  --bg-soft: #12152370;
  --panel: #151827;
  --panel-2: #1b1f30;
  --border: #262b40;
  --border-soft: #20263a;
  --text: #e6e8f0;
  --text-dim: #9aa2bd;
  --text-faint: #6b7392;
  --accent: #6d8bff;
  --accent-2: #35d0ba;
  --danger: #ff6b81;
  --ok: #46d39a;
  --warn: #ffcc66;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(900px 500px at 80% -10%, #6d8bff22, transparent 60%),
    radial-gradient(700px 500px at 0% 10%, #35d0ba18, transparent 55%),
    linear-gradient(transparent 0 97%, #ffffff08 97%) 0 0 / 100% 34px,
    linear-gradient(90deg, transparent 0 97%, #ffffff08 97%) 0 0 / 34px 100%;
  pointer-events: none;
}

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 40px);
  background: #0b0d17cc;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-dim); }
.brand strong { color: var(--text); }
.brand-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 4px #46d39a22;
  animation: pulse 2.4s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }
.topbar-right { display: flex; align-items: center; gap: 14px; }

.pill {
  font-family: var(--mono);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.pill-muted { color: var(--text-dim); background: var(--panel); }
.pill-warn { color: #ffd08a; border-color: #6a5320; background: #241d0d; }
.pill-danger { color: var(--danger); border-color: #5a2330; background: #250f16; }

.ghost-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  border-bottom: 1px dashed transparent;
  transition: color .15s, border-color .15s;
}
.ghost-link:hover { color: var(--accent-2); border-bottom-color: var(--accent-2); }

/* Layout */
.wrap {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(28px, 6vw, 64px) clamp(16px, 4vw, 24px) 80px;
}

.intro h1 {
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.12;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.lede { color: var(--text-dim); font-size: 16px; margin: 0 0 20px; }
.lede strong { color: var(--text); }

.callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text-dim);
}
.callout-ico {
  flex: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: #0b0d17;
  font-weight: 700;
  font-size: 13px;
  display: grid; place-items: center;
  font-style: normal;
}

/* Steps */
.steps { list-style: none; padding: 0; margin: 40px 0 0; counter-reset: none; }
.step {
  position: relative;
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  margin-bottom: 18px;
  transition: border-color .2s, transform .2s;
}
.step[data-active="true"] { border-color: #3a4266; }
.step[data-done="true"] { border-color: #2a6b57; }
.step-head { display: flex; gap: 14px; align-items: flex-start; }
.step-num {
  flex: none;
  width: 34px; height: 34px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-weight: 700;
  background: #232840;
  color: var(--accent);
  border: 1px solid var(--border);
  transition: all .2s;
}
.step[data-done="true"] .step-num { background: #12352b; color: var(--ok); border-color: #2a6b57; }
.step-head h2 { margin: 2px 0 4px; font-size: 18px; }
.step-head p { margin: 0; color: var(--text-faint); font-size: 13.5px; }
.step-head code {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-2);
  background: #0e1220;
  padding: 1px 6px;
  border-radius: 5px;
  white-space: nowrap;
}
.step-body { margin-top: 16px; padding-left: 48px; }
@media (max-width: 560px) { .step-body { padding-left: 0; } }

.form-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.form-row label { flex: 1 1 200px; display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-dim); }
input {
  font-family: inherit;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #0e1220;
  color: var(--text);
  transition: border-color .15s;
}
input:focus { outline: none; border-color: var(--accent); }

.btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: #0b0d17;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  padding: 11px 20px;
  border-radius: 9px;
  cursor: pointer;
  transition: transform .12s, opacity .15s, box-shadow .2s;
  box-shadow: 0 6px 20px #6d8bff22;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 8px 26px #6d8bff33; }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }
.btn.loading { position: relative; color: transparent; }
.btn.loading::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid #0b0d1755; border-top-color: #0b0d17;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hint { font-size: 12.5px; color: var(--text-faint); margin-left: 12px; }

/* IO panel */
.io {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: #0a0d18;
}
.io-status {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 13px;
  border-bottom: 1px solid var(--border-soft);
}
.dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.dot-ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot-err { background: var(--danger); box-shadow: 0 0 8px var(--danger); }
.io-status .method { color: var(--accent-2); }
.io-status .code-ok { color: var(--ok); }
.io-status .code-err { color: var(--danger); }
.io-msg { padding: 10px 14px; font-size: 13.5px; color: var(--text-dim); }
.io-msg.err { color: var(--danger); }
.io-block { border-top: 1px solid var(--border-soft); }
.io-block summary {
  cursor: pointer; padding: 8px 14px; font-size: 12px;
  color: var(--text-faint); font-family: var(--mono);
  user-select: none;
}
.io-block summary:hover { color: var(--text-dim); }
pre {
  margin: 0;
  padding: 12px 14px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
  color: #cdd3ea;
  background: #070a13;
}

/* Token viewer */
.token-view { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 16px; }
@media (max-width: 560px) { .token-view { grid-template-columns: 1fr; } }
.token-col h4 { margin: 0 0 6px; font-size: 12px; color: var(--text-faint); font-weight: 500; }
pre.jwt { border: 1px solid var(--border); border-radius: 10px; }

.foot {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px;
  margin-top: 44px; padding-top: 22px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-faint); font-size: 13px;
}

.json-key { color: #7fb0ff; }
.json-str { color: #7ee0a8; }
.json-num { color: #f0b366; }
.json-bool { color: #ff9d9d; }