:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #667085;
  --line: #e5e7eb;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --danger: #dc2626;
  --warning: #f59e0b;
  --shadow: 0 16px 38px rgba(15, 23, 42, .08);
  --radius: 22px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand a { color: var(--text); font-size: 22px; font-weight: 900; letter-spacing: -.03em; }
.nav { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.nav a, .coins { padding: 8px 12px; border-radius: 999px; font-weight: 700; color: var(--text); }
.nav a.active, .nav a:hover, .coins { background: #eefcf9; color: var(--primary-dark); }
.container { width: min(1180px, calc(100% - 28px)); margin: 28px auto; }
.footer { color: var(--muted); text-align: center; padding: 30px; }
.hero {
  display: grid; grid-template-columns: 1.7fr .8fr; gap: 24px; align-items: stretch;
  min-height: 350px; margin-bottom: 24px;
}
.hero > div:first-child, .hero-card, .card {
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius);
}
.hero > div:first-child { padding: clamp(28px, 5vw, 58px); background: linear-gradient(135deg, #ecfdf5, #ffffff); }
.hero h1 { font-size: clamp(38px, 7vw, 70px); line-height: .95; margin: 14px 0; letter-spacing: -.06em; }
.hero p { color: var(--muted); font-size: 18px; max-width: 650px; }
.hero-card { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 26px; text-align: center; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.card { padding: 22px; margin-bottom: 24px; }
h1, h2, h3 { margin-top: 0; letter-spacing: -.025em; }
.pill { display: inline-flex; padding: 7px 12px; background: #d1fae5; color: #065f46; border-radius: 999px; font-weight: 800; font-size: 13px; }
.btn {
  appearance: none; border: 0; border-radius: 999px; background: var(--primary); color: #fff !important;
  padding: 11px 18px; font-weight: 900; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.btn:hover { background: var(--primary-dark); color: #fff !important; }
.btn.secondary { background: #eef2f7; color: var(--text) !important; }
.btn.secondary:hover { background: #e2e8f0; }
.btn.danger { background: var(--danger); }
.btn-small { padding: 7px 12px; font-size: 13px; }
.btn.full { width: 100%; }
.grid { display: grid; gap: 24px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.align-start { align-items: start; }
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 20px; box-shadow: 0 10px 25px rgba(15,23,42,.05); }
.stat span { display: block; color: var(--muted); font-weight: 700; margin-bottom: 8px; }
.stat b { font-size: 28px; }
.section-head, .dashboard-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.dashboard-head { margin-bottom: 24px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.center { text-align: center; }
.empty { color: var(--muted); padding: 16px; background: #f8fafc; border: 1px dashed var(--line); border-radius: 16px; }
.alert { padding: 14px 16px; margin-bottom: 14px; border-radius: 16px; font-weight: 700; }
.alert.success { background: #dcfce7; color: #166534; }
.alert.error { background: #fee2e2; color: #991b1b; }
.alert.warning { background: #fef3c7; color: #92400e; }
.auth-card { width: min(470px, 100%); margin: 50px auto; }
form.stack, .stack { display: grid; gap: 14px; }
label { display: grid; gap: 7px; font-weight: 800; }
input, select, textarea {
  width: 100%; padding: 12px 13px; border: 1px solid #d0d5dd; border-radius: 14px; background: #fff; color: var(--text); font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 3px solid #ccfbf1; border-color: var(--primary); }
textarea { resize: vertical; }
.checkbox { display: flex; align-items: center; gap: 8px; }
.checkbox input { width: auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
table { width: 100%; border-collapse: separate; border-spacing: 0; }
th { text-align: left; color: var(--muted); background: #f8fafc; font-size: 13px; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table-wrap { overflow-x: auto; }
.status { display: inline-flex; padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 900; text-transform: uppercase; }
.status.listed, .status.active, .status.won { background: #dcfce7; color: #166534; }
.status.hidden, .status.pending { background: #fef3c7; color: #92400e; }
.status.sold, .status.lost, .status.blocked, .status.void { background: #fee2e2; color: #991b1b; }
.cow-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cow-grid.compact { grid-template-columns: 1fr; }
.cow-card { display: grid; grid-template-columns: 120px 1fr; gap: 14px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.cow-card.large { grid-template-columns: 180px 1fr; }
.cow-card img, .cow-detail > img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 16px; background: #f1f5f9; }
.cow-detail > img { margin-bottom: 18px; }
.qr { width: 180px; height: 180px; object-fit: contain; border: 8px solid #fff; box-shadow: 0 8px 20px rgba(15,23,42,.08); border-radius: 18px; }
.qr.mini { width: 90px; height: 90px; border-width: 4px; }
.qr.tiny { width: 76px; height: 76px; border-width: 3px; border-radius: 10px; }
.smallqr { width: 120px; height: 120px; }
.qr-row { display: flex; align-items: center; gap: 14px; }
.thumb { width: 160px; border-radius: 16px; }
.avatar { width: 62px; height: 62px; object-fit: cover; border-radius: 14px; }
.tiny-input { min-width: 230px; font-size: 12px; padding: 7px; margin-top: 6px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; min-width: 220px; }
.inline-form { display: inline-flex; }
.settle-form { display: grid; grid-template-columns: 120px auto; gap: 6px; align-items: center; }
.settle-form input { padding: 7px 9px; border-radius: 10px; }
.coin-form { display: grid; grid-template-columns: 110px 150px auto; gap: 6px; min-width: 320px; }
.coin-form input { padding: 8px; border-radius: 10px; }
.search-form { display: flex; gap: 8px; align-items: center; }
.search-form.wide select { min-width: 160px; }
.admin-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.admin-tabs a { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--text); font-weight: 900; }
.admin-tabs a.active, .admin-tabs a:hover { background: var(--primary); color: #fff; }
.winner-list, .leaderboard-list { display: grid; gap: 10px; }
.winner-item, .leader-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px; border-radius: 16px; border: 1px solid var(--line); background: #fff; }
.winner-item div { display: grid; }
.leader-row.first { background: linear-gradient(135deg, #fef3c7, #ffffff); border-color: #facc15; }
.leader-row em { color: var(--muted); font-style: normal; }
.live-cow-list { display: grid; gap: 16px; }
.live-cow-card { display: grid; grid-template-columns: 160px 1fr; gap: 16px; border: 1px solid var(--line); border-radius: 20px; padding: 12px; background: #fff; }
.live-cow-card > img { width: 100%; height: 140px; object-fit: cover; border-radius: 16px; }
.mini-stats { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.mini-stats span { background: #f1f5f9; border-radius: 999px; padding: 6px 9px; font-weight: 800; color: var(--muted); font-size: 13px; }
.slab-bars { display: grid; gap: 10px; }
.slab-label { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; }
.slab-label span { color: var(--muted); }
.bar { height: 10px; background: #f1f5f9; border-radius: 999px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--primary); border-radius: 999px; transition: width .35s; }
.notice-card { background: linear-gradient(135deg, #fff7ed, #fff); }
@media (max-width: 920px) {
  .hero, .grid.two, .stat-grid { grid-template-columns: 1fr; }
  .section-head, .dashboard-head { align-items: flex-start; flex-direction: column; }
  .cow-grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 620px) {
  .container { width: min(100% - 20px, 1180px); margin-top: 18px; }
  .cow-card, .cow-card.large, .live-cow-card { grid-template-columns: 1fr; }
  .form-row, .coin-form, .settle-form { grid-template-columns: 1fr; }
  .hero h1 { font-size: 42px; }
  .nav { gap: 4px; }
  .nav a, .coins { padding: 7px 9px; font-size: 13px; }
}