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

:root {
  --bg: #0d0d14;
  --surface: #1c1c2e;
  --border: #353550;
  --accent: #f7931a;
  --accent2: #a78bfa;
  --text: #ffffff;
  --muted: #b0b8cc;
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Courier New', monospace;
  min-height: 100vh;
  line-height: 1.6;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header a { color: var(--accent); text-decoration: none; font-size: 1.4rem; font-weight: bold; }
header nav a { color: var(--muted); text-decoration: none; margin-left: 1.5rem; font-size: 0.9rem; }
header nav a:hover { color: var(--text); }

#nostrBtn {
  margin-left: 1.5rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 99px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
}
#nostrBtn:hover { border-color: var(--accent2); color: var(--accent2); }
#nostrBtn.connected { border-color: var(--accent2); color: var(--accent2); }

.container { max-width: 680px; margin: 0 auto; padding: 2rem 1rem; }

h1 { font-size: 1.8rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.2rem; color: var(--muted); margin-bottom: 2rem; font-weight: normal; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h3 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 1rem; }

label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.3rem; }

input[type="text"], input[type="number"], select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.7rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  outline: none;
}
input:focus, select:focus { border-color: var(--accent); }

.choice-row { display: flex; gap: 1rem; margin-bottom: 1rem; }
.choice-btn {
  flex: 1;
  padding: 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
}
.choice-btn.selected { border-color: var(--accent); background: rgba(247,147,26,0.1); }
.choice-btn:hover:not(.selected) { border-color: var(--muted); }

.btn {
  display: block;
  width: 100%;
  padding: 0.9rem 1.5rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #000;
  font-family: inherit;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-top: 0.5rem;
}
.btn:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }

.qr-block { text-align: center; margin: 1rem 0; }
.invoice-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  font-size: 0.7rem;
  word-break: break-all;
  color: var(--muted);
  cursor: pointer;
  margin-bottom: 0.5rem;
}
.invoice-box:hover { border-color: var(--accent); }

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: bold;
  text-transform: uppercase;
}
.status-badge.waiting { background: rgba(100,116,139,0.2); color: var(--muted); }
.status-badge.paid { background: rgba(34,197,94,0.15); color: var(--success); }
.status-badge.win { background: rgba(34,197,94,0.15); color: var(--success); }
.status-badge.loss { background: rgba(239,68,68,0.15); color: var(--danger); }

.result-coin {
  font-size: 5rem;
  text-align: center;
  margin: 1rem 0;
  animation: flipIn 0.4s ease-out;
}
@keyframes flipIn {
  from { transform: rotateY(90deg) scale(0.5); opacity: 0; }
  to   { transform: rotateY(0) scale(1); opacity: 1; }
}

.seed-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; font-size: 0.82rem; }
.seed-label { color: var(--muted); min-width: 130px; }
.seed-val { color: var(--text); font-size: 0.72rem; word-break: break-all; text-align: right; }

.msg { padding: 0.75rem 1rem; border-radius: 8px; font-size: 0.9rem; margin-bottom: 1rem; }
.msg.error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }
.msg.info  { background: rgba(139,92,246,0.1); border: 1px solid rgba(139,92,246,0.3); color: #a78bfa; }

.games-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; margin-top: 2rem; }
.game-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
  display: block;
}
.game-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.game-card .icon { font-size: 2.5rem; display: block; margin-bottom: 0.5rem; }
.game-card .name { font-weight: bold; display: block; }
.game-card .desc { font-size: 0.8rem; color: var(--muted); margin-top: 0.3rem; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 2rem;
  border-top: 1px solid var(--border);
}
footer a { color: var(--accent2); text-decoration: none; }

.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 0.4em;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }