/* NEON NEXUS — Real Production Styles */
:root {
  --bg: #0a0a12;
  --card: #12121e;
  --border: #2a2a3e;
  --text: #e8e8f0;
  --muted: #8888a0;
  --cyan: #00e5ff;
  --pink: #ff2d95;
  --amber: #ffb800;
  --green: #00ff88;
  --red: #ff4466;
  --primary: #6c5ce7;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
}

.app { max-width: 1100px; margin: 0 auto; padding: 16px; }

/* Topbar */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 0; border-bottom: 1px solid var(--border); margin-bottom: 16px;
  flex-wrap: wrap; gap: 10px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; color: var(--cyan); text-shadow: 0 0 20px var(--cyan); }
.title { font-size: 22px; font-weight: 800; letter-spacing: 2px; }
.subtitle { font-size: 11px; color: var(--muted); }
.wallet-bar { display: flex; align-items: center; gap: 10px; }

/* Nav */
.nav { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.nav-btn {
  background: var(--card); border: 1px solid var(--border); color: var(--muted);
  padding: 8px 16px; border-radius: 8px; cursor: pointer; font-size: 14px;
  transition: all 0.2s;
}
.nav-btn:hover { color: var(--text); border-color: var(--cyan); }
.nav-btn.active { color: var(--cyan); border-color: var(--cyan); background: rgba(0,229,255,0.08); }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px;
}
.card h3 { margin-bottom: 8px; font-size: 16px; }
.muted { color: var(--muted); font-size: 13px; margin-bottom: 12px; }

/* Buttons */
.btn {
  padding: 10px 18px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); cursor: pointer; font-size: 14px;
  transition: all 0.2s; width: 100%; margin-top: 8px;
}
.btn:hover { border-color: var(--cyan); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: #7d6ef0; }
.btn.amber { background: var(--amber); border-color: var(--amber); color: #000; font-weight: 600; }
.btn.amber:hover { background: #ffc933; }
.btn.ghost { background: transparent; }

/* Tiers */
.tiers { display: flex; gap: 8px; margin: 12px 0; }
.tiers button {
  flex: 1; padding: 8px; border-radius: 6px; border: 1px solid var(--border);
  background: transparent; color: var(--muted); cursor: pointer; font-size: 13px;
}
.tiers button.sel { border-color: var(--cyan); color: var(--cyan); background: rgba(0,229,255,0.1); }

/* Collection */
.collection-list { display: flex; flex-wrap: wrap; gap: 6px; }
.card-item {
  background: rgba(0,229,255,0.1); border: 1px solid var(--cyan);
  padding: 4px 8px; border-radius: 4px; font-size: 12px;
}

/* Table */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { padding: 8px; text-align: left; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 500; }
.green { color: var(--green); }
.bad { color: var(--red); }

/* Stats */
.stat-card { text-align: center; }
.stat-label { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--cyan); }

/* Wall messages */
.wall-msg { padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.wall-msg b { color: var(--pink); }

/* Ads */
.ad-item {
  background: rgba(255,184,0,0.1); border: 1px solid var(--amber);
  padding: 8px 12px; border-radius: 6px; margin: 6px 0; font-size: 13px;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.7; } }

/* Modal */
.modal {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  z-index: 1000; align-items: center; justify-content: center;
}
.modal.show { display: flex; }
.modal-content {
  background: var(--card); border: 1px solid var(--cyan); border-radius: 12px;
  padding: 24px; max-width: 480px; width: 90%;
}
.modal-content h3 { margin-bottom: 10px; }

/* Toast */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--card); border: 1px solid var(--cyan); color: var(--text);
  padding: 12px 24px; border-radius: 8px; font-size: 14px; z-index: 2000;
  transition: transform 0.3s; max-width: 90%;
}
.toast.show { transform: translateX(-50%) translateY(0); }

.mono { font-family: 'SF Mono', Monaco, monospace; }

/* Responsive */
@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  .title { font-size: 18px; }
  .stat-value { font-size: 22px; }
}