.c-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 4px 14px;
  border-radius: var(--radius-md);
  min-height: 36px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.c-button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.c-button:disabled,
.c-button.is-disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.c-button--primary {
  background: #191918;
  color: #fff;
  border-color: #191918;
}

.c-button--primary:visited {
  color: #fff;
}

.c-button--primary:hover {
  background: #2a2a29;
  border-color: #2a2a29;
}

.c-button--primary:active {
  background: #111110;
  border-color: #111110;
}

.c-button--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.c-button--secondary:hover {
  background: var(--color-hover);
}

.c-button--tertiary {
  background: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.c-button--tertiary:hover {
  background: var(--color-hover);
}