:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #e4e6eb;
  --text: #1f2430;
  --text-muted: #6b7280;
  --accent: #2D6CDF;
  --accent-dark: #1f4fb0;
  --danger: #c0392b;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  line-height: 1.45;
}

a { color: var(--accent); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.container--narrow { max-width: 640px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  font-size: 18px;
  margin: 0;
}

.topbar .brand { display: flex; align-items: center; gap: 10px; }
.topbar .brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.card h2, .card h3 { margin-top: 0; }

label { display: block; font-weight: 600; font-size: 13px; margin: 14px 0 6px; }
label:first-child { margin-top: 0; }

input[type="text"], input[type="password"], input[type="number"], textarea, select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}

textarea { resize: vertical; min-height: 70px; }

.hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 7px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-dark); }
.btn.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn.btn-secondary:hover { background: #f0f1f3; }
.btn.btn-danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn.btn-danger:hover { background: #fdecea; }
.btn.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 200px; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-draft { background: #9aa0ab; }
.badge-open { background: #12A150; }
.badge-closed { background: #A61B1B; }

.flash {
  padding: 10px 14px;
  border-radius: 7px;
  margin-bottom: 16px;
  font-size: 14px;
}
.flash-error { background: #fdecea; color: #a61b1b; border: 1px solid #f3c1bb; }
.flash-ok { background: #e8f7ef; color: #0e6b3a; border: 1px solid #b7e6cb; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

/* ---- event chips ---- */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  padding: 8px 12px;
  border-radius: 6px;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  white-space: nowrap;
}

/* ---- variant results table (mirrors the reference screenshot) ---- */
.variant-table { width: 100%; border-collapse: collapse; }
.variant-row { display: grid; grid-template-columns: 130px 90px 1fr; gap: 14px; align-items: center; padding: 14px 4px; border-bottom: 1px solid var(--border); }
.variant-row:first-child { border-top: none; }
.variant-name { font-weight: 700; }
.variant-count { color: var(--text-muted); font-size: 13px; }
.variant-seq { display: flex; flex-wrap: wrap; gap: 8px; }
.variant-header { display: grid; grid-template-columns: 130px 90px 1fr; gap: 14px; padding: 0 4px 8px; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); font-weight: 700; }

.legend { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 10px; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 13px; }

/* ---- event pool / builder (participant view) ---- */
.pool { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.pool-btn {
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.pool-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.sequence-zone {
  min-height: 70px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
  background: #fafbfc;
}
.sequence-zone.drag-over { border-color: var(--accent); background: #eef4ff; }
.sequence-zone .placeholder { color: var(--text-muted); font-size: 13px; padding: 8px 2px; }

.seq-item {
  display: flex;
  align-items: center;
  cursor: grab;
  user-select: none;
}
.seq-item:hover .chip { box-shadow: 0 0 0 2px var(--danger); }
.seq-item.dragging { opacity: 0.4; }
.seq-arrow { color: var(--text-muted); font-size: 18px; align-self: center; }

.custom-add { display: flex; gap: 8px; margin-top: 10px; }
.custom-add input { flex: 1; }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.tab-btn {
  padding: 8px 16px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
}
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.qr-box { text-align: center; }
.qr-box canvas, .qr-box img { margin: 0 auto; }

.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}
.collapsible-header h3 { margin: 0; }
.collapse-toggle {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-muted);
  padding: 2px 6px;
  transition: transform 0.15s ease;
}
.collapsible-body { margin-top: 14px; }

.container--wide { max-width: 1400px; }

.present-layout { display: flex; align-items: flex-start; gap: 20px; }
.results-col { flex: 1 1 auto; min-width: 0; }
.qr-col {
  flex: 0 0 300px;
  min-width: 300px;
  transition: flex-basis 0.2s ease, min-width 0.2s ease;
}
.qr-col.collapsed {
  flex: 0 0 52px;
  min-width: 52px;
}
.qr-col.collapsed .qr-box { padding: 14px 8px; }
.qr-col.collapsed .collapsible-header { justify-content: center; }
.qr-col.collapsed .collapsible-header h3 { display: none; }
.qr-col.collapsed .collapsible-body { display: none; }
.join-code { font-size: 32px; font-weight: 800; letter-spacing: 0.1em; text-align: center; }
.join-url { text-align: center; color: var(--text-muted); font-size: 13px; word-break: break-all; }

.stat-row { display: flex; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.stat-box { flex: 1; min-width: 140px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; }
.stat-box .num { font-size: 26px; font-weight: 800; }
.stat-box .label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; }

.event-def-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.event-def-row input[type="text"] { flex: 1; }
.color-dot { width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; border: 1px solid rgba(0,0,0,0.1); }
.short-preview { width: 60px; text-align: center; font-weight: 700; color: #fff; border-radius: 5px; padding: 6px 0; font-size: 12px; }

.muted { color: var(--text-muted); }
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.actions-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }

.live-dot {
  display: inline-block;
  width: 8px; height: 8px; border-radius: 50%;
  background: #12A150;
  margin-right: 6px;
  animation: pulse 1.4s infinite;
}
@keyframes pulse { 0%{opacity:1} 50%{opacity:.3} 100%{opacity:1} }

@media (max-width: 640px) {
  .variant-row, .variant-header { grid-template-columns: 1fr; gap: 4px; }
  .variant-count { display: none; }
  .present-layout { flex-direction: column; }
  .qr-col, .qr-col.collapsed { flex-basis: auto; min-width: 0; width: 100%; }
}