:root {
  --bg: #08101f;
  --panel: #111c30;
  --panel-2: #17243b;
  --text: #f7f8fb;
  --muted: #a8b1c2;
  --gold: #f6c453;
  --gold-2: #ffdf91;
  --danger: #ff6b6b;
  --success: #57d69b;
  --line: rgba(255,255,255,.1);
  --shadow: 0 18px 60px rgba(0,0,0,.28);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans Thai", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 5%, rgba(246,196,83,.13), transparent 25rem),
    linear-gradient(145deg, #07101f, #0b1425 55%, #09101c);
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(8,16,31,.78);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .3px; }
.brand-mark {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 13px;
  color: #171109; background: linear-gradient(135deg, var(--gold), var(--gold-2));
  box-shadow: 0 8px 24px rgba(246,196,83,.2);
}
.nav-links { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.nav-links a, .link-button {
  padding: 9px 12px; border-radius: 10px; color: var(--muted);
}
.nav-links a:hover, .link-button:hover { color: var(--text); background: rgba(255,255,255,.06); }
.link-button { border: 0; background: transparent; }
.hero { padding: 90px 0 65px; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 32px; align-items: center; }
.eyebrow { color: var(--gold); font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 12px 0 18px; font-size: clamp(2.5rem, 7vw, 5.5rem); line-height: .98; letter-spacing: -.04em; }
h2 { margin: 0 0 18px; font-size: clamp(1.45rem, 3vw, 2.25rem); }
p { color: var(--muted); line-height: 1.75; }
.hero-card, .card {
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(23,36,59,.96), rgba(13,23,41,.92));
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}
.hero-card { padding: 28px; transform: rotate(1.2deg); }
.demo-badge {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px;
  border-radius: 999px; color: var(--gold-2); background: rgba(246,196,83,.1);
  border: 1px solid rgba(246,196,83,.24); font-size: .9rem; font-weight: 700;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn {
  display: inline-flex; justify-content: center; align-items: center; gap: 8px;
  border: 1px solid transparent; border-radius: 12px; min-height: 46px;
  padding: 10px 18px; font-weight: 800;
}
.btn-primary { color: #171109; background: linear-gradient(135deg, var(--gold), var(--gold-2)); }
.btn-secondary { color: var(--text); border-color: var(--line); background: rgba(255,255,255,.04); }
.btn-danger { color: white; background: #a43442; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.section { padding: 55px 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { padding: 22px; }
.icon-box {
  width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px;
  color: #171109; background: var(--gold); font-weight: 900; margin-bottom: 15px;
}
.form-shell { width: min(520px, calc(100% - 32px)); margin: 55px auto; }
.form-card { padding: 30px; }
.form-grid { display: grid; gap: 16px; }
label { display: grid; gap: 8px; color: #dce2ed; font-weight: 700; }
input, select {
  width: 100%; min-height: 48px; border-radius: 12px; border: 1px solid var(--line);
  background: #0b1527; color: var(--text); padding: 11px 13px; outline: none;
}
input:focus, select:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(246,196,83,.12); }
.help { font-size: .88rem; color: var(--muted); font-weight: 400; }
.alert { display: none; padding: 12px 14px; border-radius: 12px; margin-bottom: 16px; }
.alert.show { display: block; }
.alert.error { background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.3); color: #ffc0c0; }
.alert.success { background: rgba(87,214,155,.12); border: 1px solid rgba(87,214,155,.3); color: #bff7dc; }
.page-head { padding: 45px 0 24px; display: flex; justify-content: space-between; align-items: end; gap: 20px; }
.balance {
  min-width: 190px; padding: 16px 18px; border-radius: 15px; border: 1px solid rgba(246,196,83,.25);
  background: rgba(246,196,83,.08);
}
.balance strong { display: block; margin-top: 4px; color: var(--gold-2); font-size: 1.55rem; }
.draw-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.draw-card { position: relative; overflow: hidden; }
.draw-card::after {
  content: ""; position: absolute; width: 120px; height: 120px; right: -45px; top: -45px;
  border-radius: 50%; background: rgba(246,196,83,.08);
}
.status { display: inline-flex; padding: 6px 10px; border-radius: 999px; font-size: .82rem; font-weight: 800; }
.status.open, .status.accepted, .status.win { color: #bff7dc; background: rgba(87,214,155,.12); }
.status.closed, .status.lose, .status.void { color: #ffc0c0; background: rgba(255,107,107,.12); }
.status.scheduled, .status.waiting { color: #cbd7ff; background: rgba(104,139,255,.13); }
.status.settled { color: var(--gold-2); background: rgba(246,196,83,.12); }
.bet-layout { display: grid; grid-template-columns: 1fr .85fr; gap: 20px; align-items: start; }
.bet-row {
  display: grid; grid-template-columns: 1.1fr .8fr .8fr auto; gap: 10px; align-items: end;
  padding: 14px; border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px;
}
.summary-box { position: sticky; top: 92px; }
.summary-line { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.summary-line.total { font-size: 1.15rem; border: 0; color: var(--gold-2); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 15px; }
table { width: 100%; border-collapse: collapse; min-width: 700px; }
th, td { padding: 13px 14px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--gold-2); font-size: .9rem; background: rgba(255,255,255,.025); }
td { color: #dce2ed; }
.muted { color: var(--muted); }
.empty { padding: 34px; text-align: center; color: var(--muted); }
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 24px 18px; border-right: 1px solid var(--line);
  background: rgba(7,14,27,.94);
}
.side-links { display: grid; gap: 7px; margin-top: 28px; }
.side-links a { padding: 11px 12px; border-radius: 11px; color: var(--muted); }
.side-links a.active, .side-links a:hover { color: var(--text); background: rgba(246,196,83,.09); }
.admin-main { padding: 30px; min-width: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 18px 0 26px; }
.stat-card { padding: 18px; }
.stat-card strong { display: block; font-size: 1.8rem; color: var(--gold-2); margin-top: 7px; }
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 20px; }
footer { padding: 45px 0; color: var(--muted); border-top: 1px solid var(--line); margin-top: 55px; }
@media (max-width: 900px) {
  .hero-grid, .bet-layout, .admin-grid { grid-template-columns: 1fr; }
  .grid-3, .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .draw-grid { grid-template-columns: 1fr; }
  .summary-box { position: static; }
  .admin-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .side-links { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .nav-inner, .page-head { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .nav { position: static; }
  .hero { padding-top: 55px; }
  .grid-3, .stat-grid { grid-template-columns: 1fr; }
  .bet-row { grid-template-columns: 1fr 1fr; }
  .bet-row .remove-wrap { grid-column: span 2; }
  .admin-main { padding: 20px 14px; }
  .side-links { grid-template-columns: 1fr 1fr; }
}