:root {
  --bg: #020617;
  --panel: #0b1228;
  --panel-border: #1e2b4a;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #22d3ee;
  --accent-2: #34d399;
  --danger: #ef4444;
  --warning: #f59e0b;
}

* { box-sizing: border-box; }

main {
  background: radial-gradient(circle at top, #0f1b3d 0%, var(--bg) 46%);
  min-height: calc(100vh - 64px);
  color: var(--text);
}

.page-wrap {
  width: min(1080px, 94vw);
  margin: 0 auto;
  padding: 24px 0 40px;
}

.breadcrumbs a {
  color: #93c5fd;
  text-decoration: none;
  font: 700 13px/1 Poppins, sans-serif;
}

.hero {
  padding: 12px 0 18px;
}

.eyebrow {
  margin: 0;
  color: #67e8f9;
  letter-spacing: .12em;
  text-transform: uppercase;
  font: 700 12px/1.2 Poppins, sans-serif;
}

.hero h1 {
  margin: 6px 0 8px;
  font: 800 clamp(30px, 4.2vw, 48px)/1.08 Poppins, sans-serif;
}

.subtitle {
  margin: 0;
  font: 700 clamp(17px, 2.5vw, 22px)/1.35 Poppins, sans-serif;
  color: #a5f3fc;
}

.description {
  max-width: 920px;
  margin: 12px 0 0;
  color: #cbd5e1;
  font: 400 17px/1.6 Nunito, sans-serif;
}

.game-shell,
.content-panel {
  margin-top: 16px;
  background: linear-gradient(180deg, rgba(12, 20, 44, .95), rgba(6, 12, 28, .96));
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, .35);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button {
  border: 1px solid #0891b2;
  background: linear-gradient(180deg, #06b6d4, #0284c7);
  color: #f8fafc;
  font: 700 14px/1 Poppins, sans-serif;
  border-radius: 12px;
  padding: 11px 14px;
  cursor: pointer;
  transition: transform .15s ease, filter .15s ease;
}

button:hover { transform: translateY(-1px); filter: brightness(1.05); }
button:focus-visible {
  outline: 3px solid #fde047;
  outline-offset: 2px;
}

button.secondary {
  background: linear-gradient(180deg, #1e293b, #0f172a);
  border-color: #334155;
}

button.ghost {
  background: transparent;
  border-color: #1e40af;
}

.hud {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.hud-card {
  background: rgba(14, 22, 44, .9);
  border: 1px solid #243252;
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 6px;
}

.hud-card .k {
  color: var(--muted);
  font: 700 11px/1 Poppins, sans-serif;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.hud-card .v {
  color: #f8fafc;
  font: 800 20px/1.1 Poppins, sans-serif;
}

.security-panel {
  margin-top: 14px;
  border: 1px solid #293554;
  border-radius: 12px;
  padding: 12px;
  background: rgba(7, 14, 30, .8);
}

.security-headline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.security-headline h2 {
  margin: 0;
  font: 700 17px/1.2 Poppins, sans-serif;
}

.security-headline strong {
  color: var(--accent-2);
  letter-spacing: .08em;
  font: 800 13px/1 Poppins, sans-serif;
}

.meter-track {
  margin-top: 12px;
  width: 100%;
  height: 14px;
  background: #0f172a;
  border: 1px solid #1f2a44;
  border-radius: 999px;
  overflow: hidden;
}

.meter-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #facc15, #f97316, #ef4444);
  transition: width .18s linear;
}

.meter-labels {
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  font: 700 11px/1 Poppins, sans-serif;
  color: #94a3b8;
}

.status-line {
  min-height: 24px;
  margin: 12px 0 10px;
  color: #dbeafe;
  font: 700 14px/1.35 Poppins, sans-serif;
}

.vault-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.vault-tile {
  position: relative;
  border: 1px solid #29416f;
  background: linear-gradient(180deg, #102244, #0c1734);
  border-radius: 12px;
  min-height: 72px;
  color: #67e8f9;
  font: 700 clamp(18px, 3vw, 22px)/1 Poppins, sans-serif;
}

.vault-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, .15);
  pointer-events: none;
}

.vault-tile[data-active="true"] {
  background: linear-gradient(180deg, #34d399, #0ea5e9);
  color: #082f49;
  box-shadow: 0 0 22px rgba(52, 211, 153, .65);
}

.vault-tile[data-hit="true"] {
  background: linear-gradient(180deg, #22c55e, #16a34a);
  color: #f0fdf4;
}

.vault-tile[data-wrong="true"] {
  background: linear-gradient(180deg, #ef4444, #dc2626);
  color: #fff1f2;
  box-shadow: 0 0 20px rgba(239, 68, 68, .75);
}

.vault-grid.locked .vault-tile {
  opacity: .72;
}

.ad-slot {
  margin-top: 18px;
  background: rgba(15, 23, 42, .7);
  border: 1px dashed #334155;
  border-radius: 14px;
  padding: 10px;
}

.content-panel h2 {
  margin: 0;
  font: 800 22px/1.2 Poppins, sans-serif;
}

.content-panel ul {
  margin: 10px 0 0 18px;
  padding: 0;
  color: #cbd5e1;
  font: 400 16px/1.6 Nunito, sans-serif;
}

.content-panel p {
  margin: 14px 0 0;
  color: #cbd5e1;
  font: 400 16px/1.6 Nunito, sans-serif;
}

.content-panel a {
  color: #7dd3fc;
  text-decoration-thickness: 1px;
}

@media (max-width: 700px) {
  .page-wrap { width: min(1080px, 96vw); }
  .hero { padding-top: 8px; }
  .game-shell, .content-panel { padding: 14px; }
  .vault-grid { gap: 8px; }
  .vault-tile { min-height: 64px; }
}