:root {
  --base: #0b0c0e;
  --surface: #14161a;
  --text: #e8e9eb;
  --muted: #9aa0a6;
  --accent: #6ee7b7;
  --warn: #fbbf24;
  --danger: #ef4444;
  --radius: 8px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--base); color: var(--text); min-height: 100vh; }
body { display: flex; flex-direction: column; }
main { flex: 1; max-width: 720px; width: 100%; margin: 0 auto; padding: 32px 16px; }

.site-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 24px; border-bottom: 1px solid #20232a;
}
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
nav { display: flex; gap: 16px; align-items: center; }
nav a, nav button.link { color: var(--muted); text-decoration: none; background: none; border: 0; cursor: pointer; font: inherit; }
nav a:hover, nav button.link:hover { color: var(--text); }
.site-footer { padding: 24px; text-align: center; color: var(--muted); border-top: 1px solid #20232a; }

h1, h2, h3 { color: var(--text); }
h1 { font-size: 28px; margin-bottom: 8px; }
h2 { font-size: 20px; margin-top: 32px; }
p { color: var(--muted); line-height: 1.55; }
.warn { color: var(--warn); }

.card {
  background: var(--surface); border: 1px solid #20232a; border-radius: var(--radius);
  padding: 20px; margin: 16px 0;
}
.card h3 { margin-top: 0; }

.button, button[type="submit"] {
  display: inline-block; padding: 10px 16px; border-radius: var(--radius);
  background: var(--accent); color: var(--base); border: 0; font-weight: 600;
  text-decoration: none; cursor: pointer;
}
.button.secondary { background: transparent; color: var(--text); border: 1px solid #20232a; }
.button.secondary:hover { border-color: var(--text); }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.active { background: rgba(110, 231, 183, 0.15); color: var(--accent); }
.badge.paused { background: rgba(251, 191, 36, 0.15); color: var(--warn); }
.badge.archived { background: rgba(154, 160, 166, 0.15); color: var(--muted); }
.badge.pending, .badge.unset { background: rgba(251, 191, 36, 0.15); color: var(--warn); }
.badge.linked { background: rgba(110, 231, 183, 0.15); color: var(--accent); }

.code-block {
  background: var(--base); border: 1px solid #20232a; border-radius: var(--radius);
  padding: 16px; font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 22px;
  letter-spacing: 0.15em; user-select: all; text-align: center;
}

.qr-wrap { display: flex; justify-content: center; padding: 16px 0; }
.qr-wrap img { max-width: 280px; border-radius: var(--radius); background: white; padding: 8px; }

.wizard {
  display: flex; gap: 16px; padding: 0; margin: 0 0 24px 0; list-style: none;
  font-size: 13px; color: var(--muted);
}
.wizard li { padding: 6px 12px; border-radius: 999px; background: var(--surface); border: 1px solid #20232a; }
.wizard li.done { color: var(--accent); border-color: rgba(110, 231, 183, 0.4); }
.wizard li.active { color: var(--text); border-color: rgba(232, 233, 235, 0.4); }

.channel-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.card-btn {
  text-align: left; background: var(--surface); border: 1px solid #20232a; border-radius: var(--radius);
  padding: 20px; color: var(--text); cursor: pointer; font: inherit;
}
.card-btn:hover { border-color: var(--accent); }
.card-btn h3 { margin-top: 0; color: var(--text); }
.card-btn p.hint { color: var(--muted); font-size: 13px; }
.card-btn p.hint.warn { color: var(--warn); }