:root {
  --bg: #0f172a;
  --card: #1e293b;
  --accent: #f6821f;   /* Cloudflare orange */
  --accent2: #ffca28;  /* Firebase amber */
  --green: #22c55e;
  --red: #ef4444;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #334155;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "Segoe UI", "Noto Sans Thai", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #1e293b 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  line-height: 1.6;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  max-width: 640px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.badge.public { background: rgba(34,197,94,.15); color: var(--green); }
.badge.protected { background: rgba(246,130,31,.15); color: var(--accent); }
.badge.admin   { background: rgba(168,85,247,.15); color: #c084fc; }
.badge.teacher { background: rgba(52,211,153,.15); color: #34d399; }
.badge.student { background: rgba(56,189,248,.15); color: #38bdf8; }

.pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.pill.admin   { background: rgba(168,85,247,.15); color: #c084fc; }
.pill.teacher { background: rgba(52,211,153,.15); color: #34d399; }
.pill.student { background: rgba(56,189,248,.15); color: #38bdf8; }
.pill.viewer  { background: rgba(56,189,248,.15); color: #38bdf8; }
.pill.unknown { background: rgba(148,163,184,.15); color: #94a3b8; }

/* แถบสีซ้ายของการ์ดตาม role */
.card.role-admin   { border-left: 5px solid #c084fc; }
.card.role-teacher { border-left: 5px solid #34d399; }
.card.role-student { border-left: 5px solid #38bdf8; }

.rolehero {
  display: flex; align-items: center; gap: 14px;
  background: #0b1220; border: 1px solid var(--border);
  border-radius: 12px; padding: 16px; margin: 16px 0;
}
.rolehero .ico { font-size: 34px; line-height: 1; }
.rolehero .meta b { font-size: 16px; color: var(--text); }
.rolehero .meta span { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }

h1 { font-size: 28px; margin-bottom: 12px; }
p { color: var(--muted); margin-bottom: 16px; }
.lead { color: var(--text); }

.dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 10px;
  margin-top: 8px;
  transition: transform .1s ease, opacity .1s ease;
}
.btn:hover { transform: translateY(-1px); opacity: .92; }
.btn.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); margin-left: 8px; }

.identity {
  background: #0b1220;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-top: 20px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-all;
  color: #7dd3fc;
}

.row { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.label { color: var(--muted); min-width: 90px; }
.value { font-weight: 600; }

.stack { display: flex; flex-direction: column; gap: 6px; margin: 18px 0; }
.flow { font-size: 13px; color: var(--muted); }
.flow b { color: var(--accent); }

footer { margin-top: 28px; font-size: 12px; color: var(--muted); text-align: center; }
hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }