:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7785;
  --accent: #1b6ec2;
  --accent-dark: #155290;
  --accent-light: #eef4fb;
  --border: #d8dee5;
  --good: #e8f4ec;
  --good-text: #1f6f3f;
  --warn: #fff7e6;
  --warn-edge: #d18b00;
  --bad: #fdecea;
  --bad-text: #8a1f15;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  line-height: 1.5;
}

header {
  background: var(--accent);
  color: white;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
header h1 { margin: 0 0 0.25rem; font-size: 1.5rem; }
header .subtitle { margin: 0; opacity: 0.9; font-size: 0.9rem; }
header .header-meta { font-size: 0.85rem; opacity: 0.9; text-align: right; }
header .header-meta strong { display: block; font-size: 1rem; }
header form { margin: 0; }
header button.ghost {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.4);
  color: white;
}
header button.ghost:hover { background: rgba(255,255,255,0.22); }

main {
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}
.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: var(--accent-dark);
}
.card .lead {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}
.row label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  color: var(--muted);
  gap: 0.25rem;
}

input[type="text"], input[type="number"], input[type="file"], select {
  font-size: 1rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: white;
  min-width: 140px;
  color: var(--text);
}
input[type="file"] { padding: 0.35rem; }
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27, 110, 194, 0.15);
}

button, .btn {
  font-size: 0.95rem;
  padding: 0.55rem 1rem;
  border-radius: 5px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: white;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  font-family: inherit;
}
button:hover, .btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: white; }
button.secondary, .btn.secondary { background: white; color: var(--accent); }
button.secondary:hover, .btn.secondary:hover { background: var(--accent-light); color: var(--accent-dark); }
button.primary, .btn.primary { background: var(--accent); font-size: 1.05rem; padding: 0.7rem 1.5rem; }
button:disabled { opacity: 0.55; cursor: not-allowed; }

.muted { color: var(--muted); font-size: 0.85rem; }
.hidden { display: none !important; }
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

.flash-success, .flash-error {
  padding: 0.7rem 1rem;
  border-radius: 5px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.flash-success {
  background: var(--good);
  border: 1px solid #b6dac6;
  color: var(--good-text);
}
.flash-error {
  background: var(--bad);
  border: 1px solid #f5c4be;
  color: var(--bad-text);
}

.event-meta {
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--accent-light);
  border-radius: 5px;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.95rem;
}
.event-meta strong { color: var(--accent-dark); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th, td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
th {
  background: #f0f3f6;
  font-weight: 600;
  color: var(--text);
  font-size: 0.85rem;
}
tbody tr:hover td { background: #fafbfc; }
td input, td select {
  width: 100%;
  min-width: 0;
  padding: 0.3rem 0.4rem;
  font-size: 0.9rem;
}

.table-scroll {
  max-height: 65vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 5px;
}
.table-scroll th {
  position: sticky;
  top: 0;
  z-index: 1;
}

/* ---- Auction table ---- */
.auction-table .col-num    { width: 38px; }
.auction-table .col-ydg    { width: 70px; text-align: right; }
.auction-table .col-score  { width: 70px; text-align: right; font-variant-numeric: tabular-nums; }
.auction-table .col-amount { width: 110px; }
.auction-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}
.auction-table th.sortable:hover,
.auction-table th.sortable.active { background: #e3e9ef; }
.auction-table th.sortable.active .sort-arrow::after {
  content: attr(data-arrow);
  margin-left: 0.35rem;
  color: var(--accent);
}
.auction-table tfoot td {
  background: var(--accent-light);
  font-weight: 600;
  border-top: 2px solid var(--accent);
  border-bottom: none;
}

/* ---- Summary tiles ---- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.summary-item {
  background: var(--accent-light);
  border-radius: 6px;
  padding: 0.85rem 1rem;
  text-align: center;
  border: 1px solid #d6e3f0;
}
.summary-item .value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-dark);
  font-variant-numeric: tabular-nums;
}
.summary-item .label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 0.2rem;
}
.summary-item.highlight {
  background: var(--accent);
  border-color: var(--accent-dark);
}
.summary-item.highlight .value { color: white; }
.summary-item.highlight .label { color: rgba(255,255,255,0.85); }

/* ---- Settings grid ---- */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.85rem;
  margin-bottom: 0.25rem;
}
.settings-grid label {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  gap: 0.25rem;
}
.settings-grid input { width: 100%; }

/* ---- Payout table ---- */
.payout-table .money {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.payout-table .pct { text-align: center; }
.payout-table tfoot td {
  background: var(--accent-light);
  font-weight: 600;
  border-top: 2px solid var(--accent);
}

.btn-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.empty-state {
  padding: 1.5rem 0;
  text-align: center;
  color: var(--muted);
  font-style: italic;
}

footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.8rem;
}

@media (max-width: 600px) {
  main { padding: 0 0.5rem; }
  .card { padding: 1rem; }
  header { padding: 1rem; }
  header h1 { font-size: 1.25rem; }
  table { font-size: 0.8rem; }
  .auction-table .col-ydg, .auction-table .col-score { width: 56px; }
}