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

:root {
  --bg: #0b0b12;
  --panel: #16161f;
  --accent: #7c5cff;
  --accent2: #00d4ff;
  --text: #e8e8f0;
  --muted: #8a8a9a;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  overflow: hidden;
}

body { display: flex; flex-direction: column; }

header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid #23232f;
  flex-wrap: wrap;
  z-index: 10;
}

h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}
h1 span { color: var(--accent); }

.group { display: flex; gap: 0.35rem; }
.modes { margin-left: auto; }

button {
  background: #22222e;
  color: var(--text);
  border: 1px solid #2e2e3e;
  border-radius: 8px;
  padding: 0.45rem 0.85rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
button:hover { background: #2c2c3a; }
button:disabled { opacity: 0.4; cursor: default; }

.modes button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

#btnFullscreen { font-size: 1rem; }

#stage {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

#stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#hint {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  color: var(--muted);
  pointer-events: none;
  padding: 1rem;
}
#hint strong { color: var(--text); font-size: 1.3rem; }
#hint .small { font-size: 0.8rem; max-width: 32rem; }
#hint em { color: var(--accent2); font-style: normal; }

body.drag #stage { outline: 3px dashed var(--accent); outline-offset: -3px; }

#klangbildControls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1rem;
  background: var(--panel);
  border-top: 1px solid #23232f;
  font-size: 0.9rem;
}
#klangbildControls[hidden] { display: none; }
select {
  background: #22222e;
  color: var(--text);
  border: 1px solid #2e2e3e;
  border-radius: 6px;
  padding: 0.3rem 0.5rem;
  font-size: 0.9rem;
  cursor: pointer;
}
#kbStatus { color: var(--muted); font-size: 0.8rem; }

#mediaBox {
  position: fixed;
  right: 0.75rem;
  bottom: 3.5rem;
  width: 340px;
  z-index: 20;
  display: none;
}
#mediaBox.visible { display: block; }

#media {
  width: 100%;
  max-height: 220px;
  display: block;
  background: #000;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

#btnMediaClose {
  position: absolute;
  top: -0.6rem;
  right: -0.6rem;
  z-index: 21;
  width: 1.7rem;
  height: 1.7rem;
  padding: 0;
  border-radius: 50%;
  font-size: 0.8rem;
  line-height: 1;
  background: #2c2c3a;
}

#btnMediaShow {
  position: fixed;
  right: 0.75rem;
  bottom: 3.5rem;
  z-index: 20;
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  border-radius: 50%;
  font-size: 1.1rem;
  background: var(--accent);
  border-color: var(--accent);
}
#btnMediaShow[hidden] { display: none; }

body:fullscreen header,
body:fullscreen #klangbildControls { display: none; }