body {
  background: #181c20;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  overflow: hidden;
}

.keyboard {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-end;
  max-width: 100vw;
  box-sizing: border-box;
  padding: 16px;
  position: relative;
}

.key {
  width: 70px;
  height: 180px;
  background: #23272f;
  border-radius: 18px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-size: 2.2rem;
  color: #fff;
  box-shadow: 0 4px 18px rgba(0,0,0,0.3);
  cursor: pointer;
  user-select: none;
  transition: box-shadow 0.2s, background 0.2s;
  position: relative;
  z-index: 1;
}

.key.active {
  /* The glow will be set inline for each key */
  background: #333;
  color: #fff;
}

.key-label {
  margin-bottom: 18px;
  font-family: 'Segoe UI', Arial, sans-serif;
  letter-spacing: 2px;
  /* Add support for a second line */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}

.key-bar-anim {
  position: absolute;
  left: 50%;
  top: 0;
  width: 60%;
  height: 28px;
  border-radius: 8px 8px 4px 4px;
  transform: translate(-50%, 0);
  opacity: 1;
  z-index: 2;
  transition: transform 0.38s cubic-bezier(.4,1.6,.4,1), opacity 0.38s;
  pointer-events: none;
}

.key-bar-anim.active {
  transform: translate(-50%, -60px);
  opacity: 0;
}

@media (max-width: 900px) {
  .key {
    width: 48px;
    height: 120px;
    font-size: 1.3rem;
  }
  .keyboard {
    gap: 10px;
    padding: 8px;
  }
}

@media (max-width: 600px) {
  .key {
    width: 32vw;
    max-width: 38px;
    height: 80px;
    font-size: 1rem;
  }
  .keyboard {
    gap: 6px;
    padding: 4px;
  }
}

@media (max-width: 400px) {
  .key {
    width: 24vw;
    max-width: 28px;
    height: 60px;
    font-size: 0.8rem;
  }
}

#settings-container {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 100;
}
#settings-btn {
  background: rgba(30,30,40,0.9);
  border: none;
  border-radius: 50%;
  padding: 8px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  transition: background 0.2s;
}
#settings-btn:hover {
  background: rgba(60,60,80,1);
}
#settings-panel {
  margin-top: 8px;
  background: #23272f;
  border-radius: 12px;
  padding: 18px 22px 16px 22px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  display: block;
  min-width: 220px;
  border: 1.5px solid #333b4a;
  position: relative;
}
#settings-panel.hidden {
  display: none;
}
#settings-panel label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 1.05rem;
  color: #e0e0e0;
  cursor: pointer;
  position: relative;
}
#settings-panel .settings-divider {
  border-top: 1px solid #444a5a;
  margin: 10px 0 14px 0;
}
#settings-panel .settings-icon {
  display: none;
}
#settings-panel .custom-checkbox {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid #888;
  border-radius: 5px;
  background: #23272f;
  margin-right: 6px;
  transition: border 0.2s, background 0.2s;
  position: relative;
}
#settings-panel .custom-checkbox:checked {
  border-color: #4fd1c5;
  background: #2d3748;
}
#settings-panel .custom-checkbox:checked::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 12px;
  border: solid #4fd1c5;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}
#settings-panel select {
  background: #23272f;
  color: #fff;
  border: 1.5px solid #444a5a;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 1rem;
  margin-left: 8px;
  transition: border 0.2s;
}
#settings-panel select:focus {
  border-color: #4fd1c5;
  outline: none;
}
#settings-panel label:hover, #settings-panel select:hover {
  background: #262b36;
  border-radius: 6px;
}
#settings-panel .settings-tooltip {
  display: none;
}

/* --- Recording Controls --- */
#rec-controls {
  position: fixed;
  bottom: 18px;
  left: 18px;
  z-index: 1000;
  background: rgba(30,30,40,0.97);
  border-radius: 12px;
  padding: 12px 18px;
  box-shadow: 0 2px 16px #0006;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Segoe UI', Arial, sans-serif;
}
.rec-btn {
  background: linear-gradient(90deg, #23272f 60%, #23272f 100%);
  color: #4fd1c5;
  border: 1.5px solid #333b4a;
  border-radius: 8px;
  font-size: 1.18rem;
  font-family: inherit;
  padding: 7px 15px 7px 13px;
  margin: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.18s, color 0.18s, border 0.18s;
}
.rec-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background: #23272f;
  color: #888;
  border-color: #23272f;
}
.rec-btn:hover:not(:disabled) {
  background: #2d3748;
  color: #fff;
  border-color: #4fd1c5;
}
.rec-btn svg {
  width: 1.2em;
  height: 1.2em;
  vertical-align: middle;
  margin-right: 3px;
  fill: currentColor;
}