:root {
  --bg-0: #f7f1e6;
  --bg-1: #dfedf8;
  --ink: #1a1f2a;
  --muted: #5c6375;
  --panel: rgba(255, 255, 255, 0.74);
  --accent: #005f73;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(140deg, var(--bg-0), var(--bg-1));
}

.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  gap: 0.75rem;
  padding: 0.75rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--panel);
  border: 1px solid rgba(26, 31, 42, 0.1);
  border-radius: 0.6rem;
  padding: 0.7rem 0.9rem;
  backdrop-filter: blur(4px);
}

.topbar h1 {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.controls {
  display: flex;
  gap: 0.5rem;
}

button {
  border: 1px solid rgba(26, 31, 42, 0.2);
  background: white;
  color: var(--ink);
  border-radius: 0.5rem;
  padding: 0.45rem 0.75rem;
  font-size: 0.88rem;
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  background: var(--panel);
  border: 1px solid rgba(26, 31, 42, 0.1);
  border-radius: 0.6rem;
  padding: 0.55rem 0.8rem;
  font-size: 0.84rem;
  color: var(--muted);
}

#statusText {
  color: var(--ink);
  font-weight: 700;
}

.canvas-wrap {
  position: relative;
  flex: 1;
  min-height: 320px;
  border-radius: 0.8rem;
  overflow: hidden;
  border: 1px solid rgba(26, 31, 42, 0.2);
  background:
    radial-gradient(circle at 12% 15%, rgba(255, 255, 255, 0.65), transparent 35%),
    radial-gradient(circle at 88% 82%, rgba(255, 255, 255, 0.4), transparent 37%),
    #ccd9e6;
}

#territoryCanvas {
  display: block;
  width: 100%;
  height: 100%;
}

@media (max-width: 760px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar h1 {
    font-size: 0.98rem;
  }
}