.rb-root {
  --rb-bg: #f9f9f9;
  --rb-card: #ffffff;
  --rb-border: #e2e4e8;
  --rb-text: #002b5c;
  --rb-muted: #5a6a7a;
  --rb-accent: #002b5c;
  --rb-green: #16a34a;
  --rb-yellow: #ca8a04;
  --rb-red: #dc2626;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--rb-text);
  background: var(--rb-bg);
  padding: 1.5rem;
  border-radius: 12px;
}
.rb-root.rb-theme-dark {
  --rb-bg: #0f172a;
  --rb-card: #1e293b;
  --rb-border: #334155;
  --rb-text: #f1f5f9;
  --rb-muted: #94a3b8;
  --rb-accent: #38bdf8;
}
.rb-root * { box-sizing: border-box; }
.rb-root h2 { font-size: 1.2rem; margin: 1.8rem 0 0.8rem; color: var(--rb-accent); border-bottom: 2px solid var(--rb-accent); padding-bottom: 0.3rem; }
.rb-root h3 { font-size: 0.95rem; margin-bottom: 0.5rem; color: var(--rb-muted); }
.rb-toolbar { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; margin-bottom: 1rem; }
.rb-toolbar .rb-btn { background: var(--rb-card); border: 1px solid var(--rb-border); color: var(--rb-text); padding: 0.35rem 0.9rem; border-radius: 6px; cursor: pointer; font-size: 0.8rem; }
.rb-toolbar .rb-btn:hover { border-color: var(--rb-accent); }
.rb-toolbar .rb-btn.rb-active { background: var(--rb-accent); color: #fff; border-color: var(--rb-accent); }
.rb-toolbar .rb-refresh { background: var(--rb-accent); color: #fff; border-color: var(--rb-accent); font-weight: 600; }
.rb-last { color: var(--rb-muted); font-size: 0.8rem; margin-left: auto; }
.rb-grid { display: grid; gap: 1rem; margin-bottom: 1rem; }
.rb-grid-2 { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.rb-grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.rb-card { background: var(--rb-card); border: 1px solid var(--rb-border); border-radius: 10px; padding: 1.2rem; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.rb-winner { text-align: center; padding: 0.8rem; }
.rb-winner .rb-emoji { font-size: 1.4rem; }
.rb-winner .rb-label { color: var(--rb-muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; }
.rb-winner .rb-value { font-size: 1.05rem; font-weight: 700; margin-top: 0.2rem; }
.rb-tile { text-align: center; padding: 0.8rem; }
.rb-tile .rb-value { font-size: 1.6rem; font-weight: 700; }
.rb-tile .rb-label { color: var(--rb-muted); font-size: 0.75rem; }
.rb-good { color: var(--rb-green); } .rb-warn { color: var(--rb-yellow); } .rb-bad { color: var(--rb-red); }
.rb-root table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.rb-root th, .rb-root td { padding: 0.45rem 0.7rem; text-align: left; border-bottom: 1px solid var(--rb-border); }
.rb-root th { color: var(--rb-muted); font-weight: 600; font-size: 0.72rem; text-transform: uppercase; }
.rb-root td { font-variant-numeric: tabular-nums; }
.rb-rank { display: inline-block; width: 1.3rem; height: 1.3rem; line-height: 1.3rem; text-align: center; border-radius: 50%; font-size: 0.7rem; font-weight: 700; background: var(--rb-border); color: var(--rb-text); }
.rb-rank-1 { background: #fbbf24; color: #000; }
.rb-rank-2 { background: #94a3b8; color: #000; }
.rb-rank-3 { background: #b45309; color: #fff; }
.rb-bar { display: flex; align-items: center; gap: 0.6rem; padding: 0.4rem 0; border-bottom: 1px solid var(--rb-border); }
.rb-bar:last-child { border-bottom: none; }
.rb-bar .rb-pos { width: 1.4rem; text-align: center; }
.rb-bar .rb-name { width: 110px; font-weight: 600; font-size: 0.88rem; }
.rb-bar .rb-wrap { flex: 1; background: var(--rb-border); border-radius: 4px; height: 24px; overflow: hidden; }
.rb-bar .rb-fill { height: 100%; display: flex; align-items: center; padding-left: 10px; font-size: 0.78rem; font-weight: 700; color: #fff; transition: width 0.5s ease; }
.rb-chart { position: relative; height: 300px; }
.rb-loading, .rb-error, .rb-empty { padding: 2rem; text-align: center; color: var(--rb-muted); }
.rb-error { color: var(--rb-red); }

/* ─── Help icons & section intros ─── */
.rb-help {
  display: inline-block;
  width: 1.1em;
  height: 1.1em;
  line-height: 1.1em;
  text-align: center;
  font-size: 0.75em;
  font-weight: 700;
  color: var(--rb-muted);
  background: transparent;
  border: 1px solid var(--rb-border);
  border-radius: 50%;
  cursor: help;
  margin-left: 0.35em;
  vertical-align: middle;
  user-select: none;
  transition: all 0.15s ease;
}
.rb-help:hover, .rb-help:focus {
  color: #fff;
  background: var(--rb-accent);
  border-color: var(--rb-accent);
  outline: none;
}
.rb-intro {
  color: var(--rb-muted);
  font-size: 0.88rem;
  line-height: 1.5;
  max-width: 820px;
  margin: -0.4rem 0 1rem;
}
.rb-intro strong { color: var(--rb-text); }

/* ─── Insufficient-data notice ─── */
.rb-notice {
  background: #fef3c7;
  color: #78350f;
  border: 1px solid #fcd34d;
  border-left: 4px solid #d97706;
  border-radius: 6px;
  padding: 0.7rem 1rem;
  margin: 0 0 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
}
.rb-notice strong { color: #78350f; }
.rb-notice em { color: var(--rb-accent); font-style: normal; font-weight: 600; }
.rb-root.rb-theme-dark .rb-notice {
  background: rgba(217, 119, 6, 0.15);
  color: #fde68a;
  border-color: rgba(252, 211, 77, 0.4);
  border-left-color: #f59e0b;
}
.rb-root.rb-theme-dark .rb-notice strong { color: #fde68a; }

/* ─── Feedback widget ─── */
.rb-fb-fab {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 9998;
  background: var(--rb-accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  transition: transform .15s ease, box-shadow .15s ease;
}
.rb-fb-fab:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,0.24); }

.rb-fb-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
  animation: rb-fb-fadein .15s ease;
}
@keyframes rb-fb-fadein { from { opacity: 0 } to { opacity: 1 } }

.rb-fb-modal {
  background: var(--rb-card);
  color: var(--rb-text);
  border-radius: 12px;
  padding: 1.5rem 1.5rem 1.2rem;
  width: min(520px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.rb-fb-modal h3 { margin: 0 0 0.4rem; color: var(--rb-accent); font-size: 1.2rem; }
.rb-fb-intro { color: var(--rb-muted); font-size: 0.88rem; margin: 0 0 1rem; }
.rb-fb-close {
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  background: transparent;
  border: none;
  color: var(--rb-muted);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
}
.rb-fb-close:hover { color: var(--rb-text); }

.rb-fb-form label {
  display: block;
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--rb-text);
}
.rb-fb-form input[type="text"],
.rb-fb-form input[type="email"],
.rb-fb-form select,
.rb-fb-form textarea {
  display: block;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--rb-border);
  border-radius: 6px;
  background: var(--rb-bg);
  color: var(--rb-text);
  font: inherit;
  font-weight: 400;
  box-sizing: border-box;
}
.rb-fb-form textarea { resize: vertical; min-height: 100px; font-family: inherit; }
.rb-fb-form input:focus,
.rb-fb-form select:focus,
.rb-fb-form textarea:focus {
  outline: none;
  border-color: var(--rb-accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--rb-accent) 25%, transparent);
}
.rb-fb-req { color: var(--rb-red); font-weight: 700; }
.rb-fb-opt { color: var(--rb-muted); font-weight: 400; font-size: 0.8rem; }
.rb-fb-counter { display: block; text-align: right; font-size: 0.75rem; color: var(--rb-muted); margin-top: 0.2rem; font-weight: 400; }

/* Honeypot — visually hidden but still in DOM so bots fill it. */
.rb-fb-hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.rb-fb-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 0.5rem; }
.rb-fb-submit { background: var(--rb-accent); color: #fff; border-color: var(--rb-accent); }
.rb-fb-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.rb-fb-result { margin-top: 0.8rem; font-size: 0.9rem; min-height: 1.2rem; }
.rb-fb-result.rb-fb-ok  { color: var(--rb-green); font-weight: 600; }
.rb-fb-result.rb-fb-err { color: var(--rb-red);   font-weight: 600; }