:root {
  --bg: #020403;
  --panel: rgba(4, 12, 8, 0.72);
  --panel-solid: #050d09;
  --green: #3dff8f;
  --green-2: #2bd673;
  --text: #c9f7da;
  --text-2: #8fc7a4;
  --dim: #55856a;
  --faint: #2f4d3c;
  --line: rgba(61, 255, 143, 0.16);
  --line-2: rgba(61, 255, 143, 0.32);
  --glow: rgba(61, 255, 143, 0.12);
  --radius: 6px;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --maxw: 1160px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 600; }
p { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--dim); }
[hidden] { display: none !important; }

/* ---------- background ---------- */
#bg {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  z-index: -2;
  pointer-events: none;
}
.vignette {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 50% 32%, rgba(2,4,3,0.55), transparent 70%),
    radial-gradient(ellipse at center, transparent 45%, rgba(2,4,3,0.85) 100%);
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px;
  max-width: var(--maxw); margin: 0 auto;
  padding: 14px 24px;
  background: linear-gradient(to bottom, rgba(2,4,3,0.92), rgba(2,4,3,0.7));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font: 600 14px var(--display); letter-spacing: 0.28em; color: var(--green); }
.mark { width: 22px; height: 22px; fill: none; stroke: var(--green); stroke-width: 1.4; stroke-linecap: round; }
.mark circle:first-child { fill: var(--green); stroke: none; }
.mark .ring { opacity: 0.5; }
.nav { display: flex; gap: 22px; margin-left: 12px; }
.nav a { font-size: 13px; color: var(--text-2); letter-spacing: 0.04em; transition: color .15s; }
.nav a:hover { color: var(--green); }
.top-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.demo-chip {
  font: 500 10.5px var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--dim); border: 1px dashed var(--faint); padding: 4px 8px; border-radius: 4px;
}
.ca {
  font: 12px var(--mono); color: var(--text-2);
  border: 1px solid var(--line); border-radius: 4px; padding: 6px 10px;
  transition: border-color .15s, color .15s;
}
.ca:hover { border-color: var(--line-2); color: var(--green); }
.ca span { color: var(--dim); margin-left: 6px; }
.btn {
  font: 600 13px var(--sans); letter-spacing: 0.04em;
  color: var(--bg); background: var(--green);
  padding: 7px 16px; border-radius: 4px;
  transition: box-shadow .2s, transform .2s;
}
.btn:hover { box-shadow: 0 0 24px rgba(61,255,143,0.35); }

/* ---------- hero ---------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.hero { text-align: center; padding: 72px 0 56px; }
.status {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 11.5px var(--mono); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-2);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px;
  background: rgba(2,4,3,0.6);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: beat 1.6s ease-in-out infinite; }
@keyframes beat { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.status.final { color: var(--green); border-color: var(--line-2); }
.status.final .dot { animation-duration: .6s; }

.wordmark {
  margin-top: 28px;
  font: 700 clamp(56px, 13vw, 148px)/0.9 var(--display);
  letter-spacing: 0.06em;
  color: var(--green);
  text-shadow: 0 0 40px rgba(61,255,143,0.22), 0 0 2px rgba(61,255,143,0.6);
  padding-left: 0.06em; /* balance trailing letter-spacing */
}
.tagline { margin-top: 22px; font: 500 clamp(18px, 2.4vw, 24px) var(--display); color: var(--text); letter-spacing: 0.01em; }
.sub { margin-top: 8px; color: var(--text-2); font-size: 15px; }

.countdown { margin: 44px auto 0; width: min(420px, 100%); }
.timer {
  font: 500 clamp(52px, 9vw, 84px)/1 var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--text);
  letter-spacing: 0.02em;
}
.timer.final { color: var(--green); text-shadow: 0 0 24px rgba(61,255,143,0.4); }
.timer-label { margin-top: 10px; font: 11px var(--mono); letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); }
.progress { margin-top: 18px; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.progress span { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--green); box-shadow: 0 0 8px var(--green); }

.stats {
  margin: 48px auto 0;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(2px);
}
.stat { padding: 20px 22px; text-align: left; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat .label { font: 11px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); }
.stat .value { margin-top: 8px; font: 500 26px/1.15 var(--mono); font-variant-numeric: tabular-nums; color: var(--text); white-space: nowrap; }
.stat .value small { font-size: 13px; color: var(--dim); margin-left: 6px; }
.stat-pot .value { color: var(--green); }
.mono-sm { font-size: 18px !important; padding-top: 5px; }
.mono-sm small { display: block; margin: 4px 0 0 !important; font-size: 12px !important; }
.flash { animation: flash 0.9s ease-out; }
@keyframes flash { 0% { text-shadow: 0 0 18px var(--green); color: var(--green); } 100% { text-shadow: none; } }

/* ---------- panels ---------- */
.row { display: grid; gap: 20px; margin-top: 20px; }
.row-a { grid-template-columns: 1.65fr 1fr; }
.row-b { grid-template-columns: 1fr 1.65fr; }
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(3px);
  display: flex; flex-direction: column;
  min-width: 0;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.panel-head h2 { font: 600 13px var(--display); letter-spacing: 0.16em; text-transform: uppercase; color: var(--text); }
.panel-head h2 .muted { margin-left: 8px; font-weight: 400; letter-spacing: 0.04em; }
.head-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-2); }
.head-meta .sep { width: 1px; height: 12px; background: var(--line-2); }
.head-meta.live { font: 11px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--dim); gap: 8px; }
.panel-foot { padding: 12px 20px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--dim); display: flex; gap: 18px; flex-wrap: wrap; margin-top: auto; }
.panel-foot b { color: var(--text-2); font-weight: 500; }

/* ---------- tables ---------- */
.table-wrap { position: relative; overflow-x: auto; }
.board { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.board th {
  font: 500 10.5px var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--dim); text-align: left; padding: 11px 20px;
  border-bottom: 1px solid var(--line);
}
.board td { padding: 10px 20px; border-bottom: 1px solid rgba(61,255,143,0.07); font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--text-2); white-space: nowrap; }
.board tbody tr:last-child td { border-bottom: 0; }
.board .num { text-align: right; }
.board .c-rank { width: 48px; color: var(--dim); }
.board td.wallet { color: var(--text); }
.board tbody tr { transition: background .3s; }
.board tbody tr:hover { background: rgba(61,255,143,0.03); }
.board tr.lead td { color: var(--green); background: rgba(61,255,143,0.055); }
.board tr.lead td:first-child { box-shadow: inset 2px 0 0 var(--green); }
.board tr.lead .tag { display: inline-block; }
.tag { display: none; margin-left: 10px; font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; border: 1px solid var(--line-2); border-radius: 3px; padding: 1px 6px; color: var(--green); vertical-align: 1px; }
.board td.bump { animation: flash 0.9s ease-out; }
#roundBoard tbody tr:nth-child(n+11) { display: none; }
.empty { padding: 40px 20px; text-align: center; color: var(--dim); font-size: 13px; }

/* ---------- feed ---------- */
.panel-feed { max-height: 560px; }
.feed { overflow: hidden; flex: 1; position: relative; mask-image: linear-gradient(to bottom, #000 75%, transparent); }
.feed li {
  display: grid; grid-template-columns: 14px 1fr auto; gap: 10px; align-items: baseline;
  padding: 10px 20px; border-bottom: 1px solid rgba(61,255,143,0.06);
  font-size: 13px; color: var(--text-2);
}
.feed li.new { animation: slide 0.5s ease-out; }
@keyframes slide { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.feed .ic { width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--green); transform: translateY(-1px); }
.feed .t { font: 11px var(--mono); color: var(--faint); }
.feed .w { font-family: var(--mono); color: var(--text); }
.feed .hl { color: var(--green); }
.feed li.k-infection .ic { background: transparent; opacity: .7; }
.feed li.k-leader .ic { background: var(--green); }
.feed li.k-reward .ic { border-radius: 1px; transform: rotate(45deg) translateY(-1px); }
.feed li.k-winner { background: rgba(61,255,143,0.06); }
.feed li.k-winner .ic { background: var(--green); box-shadow: 0 0 8px var(--green); }
.feed li.k-round_start .ic, .feed li.k-no_winner .ic { border-style: dashed; }
.feed li.k-round_start { color: var(--dim); }
.feed li.feed-empty { display: block; padding: 40px 20px; text-align: center; color: var(--dim); }

/* ---------- last round ---------- */
.last { padding: 24px 22px; display: flex; flex-direction: column; flex: 1; }
.last-label { font: 11px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--dim); }
.last-wallet { margin-top: 10px; font-size: 20px; color: var(--green); word-break: break-all; }
.last-reward { margin-top: 18px; font: 500 40px/1 var(--mono); color: var(--text); }
.last-reward small { font-size: 13px; color: var(--dim); margin-left: 8px; }
.last-sub { margin-top: 10px; font-size: 12px; color: var(--text-2); }
.podium { margin-top: auto; padding-top: 22px; border-top: 1px solid var(--line); }
.last .podium { margin-top: 26px; }
.podium li { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; font: 13px var(--mono); color: var(--text-2); }
.podium li span:first-child { color: var(--dim); width: 28px; }
.podium li .pw { flex: 1; color: var(--text); }

/* ---------- how ---------- */
.how { margin: 96px 0 40px; }
.section-title { font: 600 13px var(--display); letter-spacing: 0.2em; text-transform: uppercase; color: var(--text); text-align: center; }
.steps { margin-top: 28px; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.steps li { padding: 24px 22px 26px; }
.steps li + li { border-left: 1px solid var(--line); }
.steps .n { font: 11px var(--mono); color: var(--green); letter-spacing: 0.1em; }
.steps h3 { margin-top: 14px; font: 600 17px var(--display); color: var(--text); }
.steps p { margin-top: 6px; font-size: 13.5px; color: var(--text-2); }
.rules { margin: 20px auto 0; max-width: 760px; padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.rules h3 { font: 11px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--dim); font-weight: 400; }
.rules ul { margin-top: 12px; display: grid; gap: 8px; }
.rules li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--text-2); }
.rules li::before { content: ''; position: absolute; left: 0; top: 0.62em; width: 8px; height: 1px; background: var(--green); }
.rules strong { color: var(--text); font-weight: 600; }

.foot { max-width: var(--maxw); margin: 40px auto 0; padding: 26px 24px 40px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; font: 11.5px var(--mono); letter-spacing: 0.08em; color: var(--text-2); }

/* ---------- winner announcement ---------- */
.announce {
  position: fixed; inset: 0; z-index: 50;
  display: grid; place-items: center; padding: 16px;
  background: rgba(2,4,3,0.72); backdrop-filter: blur(4px);
  animation: fade .35s ease-out;
  cursor: pointer;
}
@keyframes fade { from { opacity: 0; } }
.announce-card {
  width: min(460px, 100%); text-align: center;
  padding: 36px 28px 30px;
  border: 1px solid var(--line-2); border-radius: var(--radius);
  background: var(--panel-solid);
  box-shadow: 0 0 80px rgba(61,255,143,0.12);
  animation: rise .5s cubic-bezier(.2,.8,.2,1);
}
@keyframes rise { from { transform: translateY(10px) scale(.98); opacity: 0; } }
.announce-kicker { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); }
.announce-label { margin-top: 22px; font: 600 13px var(--display); letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-2); }
.announce-wallet { margin-top: 10px; font-size: 22px; color: var(--green); }
.announce-reward { margin-top: 18px; font: 500 54px/1 var(--mono); color: var(--text); }
.announce-reward small { font-size: 15px; color: var(--dim); margin-left: 8px; }
.announce-sub { margin-top: 12px; font-size: 12px; color: var(--text-2); }
.announce-next { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; color: var(--dim); }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .row-a, .row-b { grid-template-columns: 1fr; }
  .panel-feed { max-height: 420px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps li:nth-child(3) { border-left: 0; }
  .steps li:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 640px) {
  body { font-size: 14px; }
  .topbar { padding: 12px 16px; gap: 12px; }
  .nav, .demo-chip { display: none; }
  .ca { display: none; }
  main { padding: 0 16px; }
  .hero { padding: 48px 0 40px; }
  .stat { padding: 16px; }
  .stat .value { font-size: 20px; }
  .mono-sm { font-size: 15px !important; }
  .panel-head, .board th, .board td, .feed li { padding-left: 14px; padding-right: 14px; }
  .board th, .board td { padding-left: 10px; padding-right: 10px; }
  .board .c-rank { width: 32px; }
  .hide-sm { display: none; }
  .steps { grid-template-columns: 1fr; }
  .steps li + li { border-left: 0; border-top: 1px solid var(--line); }
  .how { margin-top: 64px; }
  .foot { flex-direction: column; padding: 22px 16px 32px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}