:root {
  --bg: #0a0d14;
  --panel: #121826;
  --accent: #4ed1ff;
  --accent-2: #ffb347;
  --text: #f5f7ff;
  --muted: #9ba7c7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(78, 209, 255, 0.12), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 179, 71, 0.1), transparent 45%),
    var(--bg);
  color: var(--text);
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px 28px 32px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #6af1ff);
  box-shadow: 0 12px 30px rgba(78, 209, 255, 0.35);
}

.brand h1 {
  margin: 0;
  font-size: 1.5rem;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
}

.hud {
  display: grid;
  grid-template-columns: repeat(3, minmax(90px, 1fr));
  gap: 16px;
}

.hud div {
  background: var(--panel);
  padding: 10px 14px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hud span {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.hud strong {
  font-size: 1.1rem;
}

main {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  flex: 1;
}

.panel {
  position: relative;
  background: var(--panel);
  border-radius: 24px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

canvas {
  width: 100%;
  height: auto;
  border-radius: 16px;
  background: #06080f;
  display: block;
}

.overlay {
  position: absolute;
  inset: 16px;
  display: grid;
  place-items: center;
  background: rgba(6, 8, 15, 0.75);
  border-radius: 16px;
}

.card {
  background: rgba(18, 24, 38, 0.95);
  padding: 24px 32px;
  border-radius: 18px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 12px;
}

.card h2 {
  margin: 0;
  font-size: 1.6rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card input {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: rgba(9, 12, 20, 0.8);
  padding: 10px 12px;
  color: var(--text);
}

.card small {
  color: var(--muted);
}

.row {
  display: flex;
  gap: 10px;
  justify-content: center;
}

button {
  border: none;
  background: var(--accent);
  color: #041018;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 10px;
  cursor: pointer;
}

button.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
}

aside {
  background: var(--panel);
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

aside h3 {
  color: var(--text);
  margin: 0;
}

aside ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

aside li strong {
  color: var(--text);
  margin-right: 6px;
}

.roster {
  display: grid;
  gap: 8px;
}

.roster-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.roster-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

footer {
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 960px) {
  main {
    grid-template-columns: 1fr;
  }
}