:root {
  --red: #e31e24;
  --ink: #151515;
  --muted: #666;
  --line: #e5e5e5;
  --bg: #f3f3f3;
  --card: #fff;
}

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

body {
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
}

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

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background:
    radial-gradient(800px 300px at 50% 0%, rgba(227,30,36,.16), transparent 60%),
    var(--bg);
}

.login-card {
  width: min(380px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 20px;
}

.login-card h1 {
  font-size: 1.25rem;
  margin: 8px 0 4px;
}

.login-card .sub {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 18px;
}

.brand {
  color: var(--red);
  font-weight: 900;
  letter-spacing: 0.04em;
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 6px;
}

input, select, textarea, button {
  font: inherit;
}

input, select, textarea {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  margin-bottom: 12px;
  background: #fff;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--red);
}

button, .btn {
  border: 0;
  border-radius: 10px;
  padding: 11px 14px;
  font-weight: 700;
  cursor: pointer;
  background: var(--red);
  color: #fff;
}

button.secondary, .btn.secondary {
  background: #ececec;
  color: var(--ink);
}

button.danger {
  background: #8a1515;
}

button:disabled { opacity: 0.5; cursor: not-allowed; }

.msg {
  display: none;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.88rem;
  background: #ffe8e8;
  color: #8a1515;
}
.msg.show { display: block; }

.topbar {
  background: #111;
  color: #fff;
  padding: 12px 16px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar .left { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.topbar .brand-sm { color: #ff6b6f; font-weight: 900; }
.topbar nav button {
  background: transparent;
  color: #ddd;
  padding: 6px 10px;
}
.topbar nav button.active {
  background: #2a2a2a;
  color: #fff;
}

.page {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding: 18px 14px 40px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}
.stat b { display: block; font-size: 1.4rem; }
.stat span { color: var(--muted); font-size: 0.8rem; }

.panel { display: none; }
.panel.active { display: block; }

.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  align-items: center;
}

.toolbar input, .toolbar select {
  margin: 0;
  width: auto;
  min-width: 140px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

th {
  background: #fafafa;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #555;
}

tr:hover td { background: #fcfcfc; }

.thumb {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: #ddd;
}

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: #eee;
}
.pill.seller { background: #ffe4e4; color: #a11616; }
.pill.mitra { background: #e7f0ff; color: #1a4a8a; }
.pill.win { background: #e7f7ec; color: #1b7a3d; }

.stage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stage-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}

.stage-card h3 { margin-bottom: 8px; font-size: 1rem; }
.stage-card .meta { color: var(--muted); font-size: 0.82rem; margin-bottom: 10px; }

.winner-list {
  list-style: none;
  margin: 10px 0;
}
.winner-list li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}

.muted { color: var(--muted); font-size: 0.85rem; }

@media (max-width: 800px) {
  .stats, .stage-grid { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
}