:root {
  --bg: #fff;
  --text: #000;
  --text-shadow: none;
  --text-secondary: #999;
  --border: #ddd;
  --border-hover: #000;
  --error-color: #d00;
}

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

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Google Sans Code", "Noto Emoji", monospace;
  background: var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.status {
  position: fixed;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 0.75rem;
  opacity: 0.3;
}

.status.connected {
  color: var(--text);
}

.status.disconnected {
  color: var(--error-color);
  opacity: 1;
}

.empty-state {
  width: 100%;
  max-width: 400px;
}

.upload-area {
  border: 1px solid var(--border);
  padding: 4rem 2rem;
  text-align: center;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.upload-area:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

.upload-area.dragover {
  border-color: var(--border-hover);
  color: var(--text);
}

.file-state {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.file-name {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  word-break: break-all;
}

.file-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.file-actions {
  display: flex;
  gap: 0.5rem;
}

button {
  flex: 1;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-family: "Google Sans Code", monospace;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  cursor: pointer;
}

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

button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}